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As filed with the Securities and Exchange Commission on November 13, 2017

September 29, 2022

Registration No. 333-221010

333-267368

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

AMENDMENT NO. 1


Amendment No. 2

to
FORM S-1
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933



CHF SOLUTIONS,NUWELLIS, INC.

(Exact name of registrant as specified in its charter)



Delaware
3845
68-0533453
(State or Other Jurisdiction of Incorporation)Incorporation or Organization)
(Primary Standard Industrial
Classification Code Number)
(I.R.S. Employer
Identification Number)

12988 Valley View Road

Eden Prairie, Minnesota 55344
(952) 345-4200
(Address, Including Zip Code, and Telephone Number, Including Area Code, of Registrant’s Principal Executive Offices)

Nestor Jaramillo, Jr.


John Erb

Chief Executive Officer
CHF Solutions,
Nuwellis, Inc.
12988 Valley View Road
Eden Prairie, Minnesota 55344
(952) 345-4200
(Name, Address, Including Zip Code, and Telephone Number, Including Area Code, of Agent for Service)



Copies to:

Phillip D. Torrence Esq.
Meredith Ervine, Esq.
Honigman Miller Schwartz and Cohn LLP
350 East Michigan Avenue,
650 Trade Centre Way, Suite 300200
Kalamazoo, MI 4900749002
Tel: (269) 337-7700
Fax: (269) 337-7703
Neil Ayotte
Senior Vice President, General Counsel,
Secretary and Chief Compliance Officer
Nuwellis, Inc.
12988 Valley View Road
Eden Prairie, Minnesota 55344
Tel: (952) 345-4200
Michael F. Nertney
Ellenoff Grossman & Schole LLP
1345 Avenue of the Americas
New York, NY 10105-0302
Tel: (212) 370-1300
Fax: (212) 401-4741



Approximate date of commencement of proposed sale to the public: From time to time after this Registration Statement becomes effective.

If any securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, check the following box: ☒
If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  o
If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  o
If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  o
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer  o
Accelerated filer  o
Non-accelerated filer o
(Do not check if a
smaller reporting company)
Smaller reporting company ☒
 
 
Emerging growth company  

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided to Section 7(a)(2)(B) of the Securities Act.  o

CALCULATION OF REGISTRATION FEE

Title of securities to be registered(1)
Proposed maximum
aggregate offering price(1)
Amount of
Registration Fee(2)
Series F Convertible Preferred Stock
$
10,000,000
 
$
1,245.00
 
Common Stock issuable upon conversion of Series F Convertible Preferred Stock
 
 
 
 
 
 
Warrants to purchase common stock
 
 
 
 
 
 
Common Stock issuable on exercise of Warrants
$
22,000,000
 
$
2,739.00
 
Total
$
32,000,000
 
$
3,984.00(3
)

(1)Estimated solely for the purpose of computing the registration fee pursuant to Rule 457(o) under the Securities Act of 1933, as amended (the “Act”). Pursuant to Rule 416 under the Act, the securities registered also include such indeterminate amounts and numbers of shares of common stock issuable to cover additional securities that may be offered or issued to prevent dilution resulting from stock splits, stock dividends or similar transactions.
(2)Calculated pursuant to Rule 457(o) based on an estimate of the proposed maximum aggregate offering price of all securities being registered.
The registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933 or until the registration statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine.
(3)Of this amount, $2,147.63 was previously paid.

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The information contained in this preliminary prospectus is not complete and may be changed. We may not sell these securities until the registration statement relating to these securities filed with the Securities and Exchange Commission is effective. This preliminary prospectus is not an offer to sell these securities and it isthey are not soliciting an offer to buy these securities in any jurisdiction where theany such offer or sale is not permitted.

SUBJECT TO COMPLETION, DATED NOVEMBER 13, 2017

SEPTEMBER 29, 2022

PRELIMINARY PROSPECTUS


CHF SOLUTIONS,

NUWELLIS, INC.

10,000 Shares

10,794,602 Class A Units consisting of shares of common stock and warrants and 7,196,401 Class B Units consisting of Series F Convertible Preferred Stock
(and 2,141,328 Shares of Common Stock Underlying the Series F Convertible Preferred Stock)
Warrants to Purchase up to 4,282,655 Shares of Common Stock
(and 4,282,655 Shares of Common Stock Issuable Upon Exercise of Warrants)

We are offering 10,000 shares of Series FI convertible preferred stock and 4,282,655 warrants (and shares of common stock underlying shares of Series I convertible preferred stock and such warrants)

We are offering 10,794,602 Class A Units, with each exercisable forClass A Unit consisting of one share of common stock, par value $0.0001 per share (“common stock”), and one warrant to purchase one share of our common stock which number(together with the shares of common stock underlying such warrants, equals 200%the “Class A Units”) at an assumed public offering price of $0.58 per Class A Unit, the number of sharesclosing price of our common stock issuable upon conversionon The Nasdaq Capital Market on September 27, 2022.
We are also offering 7,196,401 Class B Units to purchasers who prefer not to beneficially own more than 4.99% (or, at the election of athe purchaser, 9.99%) of our outstanding common stock following the consummation of this offering. Each Class B Unit will consist of one share of Series FI Convertible Preferred Stock, par value $0.0001 per share (the “Series I Preferred Stock”), convertible preferred stockat any time at the conversion price,holder’s option into one share of common stock, and a warrant to purchase one share of common stock at an exercise price of [ ] per share equal to $[_____]. This prospectus also covers up to 2,141,328(together with the shares of common stock issuable upon conversionunderlying such shares of Series I Preferred Stock and such warrants, the Series F convertible preferred stock“Class B Units” and, up to 4,282,655 shares together with the Class A Units, the “Units”) at an assumed public offering price of $0.58 per Class B Unit, the closing price of our common stock issuable upon exercise ofon September 27, 2022.
The Class A Units and Class B Units will not be certificated and the warrants.

Each share of Series F convertible preferred stock will be sold with one warrant that expires on the first anniversary of the date of issuance to purchase up to 214 shares of common stock, (referred to as “Series 1 warrants”)Series I Preferred Stock and one warrant that expires on the seventh anniversary of the date of issuance to purchase up to 214 shares of common stock (referred to as “Series 2 warrants”), and collectively will be sold, at the public offering price of $1,000 per share of Series F convertible preferred stock. The shares of Series F convertible preferred stock and related warrants comprising such Units are immediately separable and will be issued separately. Subject to certain ownership limitations,separately in this offering. Warrants included in the Series F convertible preferred stock is convertible at any time atUnits have an exercise price of $[ ] per whole share, are exercisable beginning on the optioneffective date of stockholder approval of the holder into shares of our common stock at an initial conversion price per share equal to $    . Subject to certain ownership limitations, the warrants are immediately exercisable.

For a more detailed descriptionissuance of the Series F convertible preferred stock, see the section entitled “Description of Securities—Description of Series F Convertible Preferred Stock” beginning on page 41. For a more detailed description of the warrants, see the section entitled “Description of Securities—Description of Warrants We Are Offering In This Offering” beginning on page 43 of this prospectus. For a more detailed description of our common stock, see the section entitled “Description of Securities—Description of Our Common Stock” beginning on page 44 of this prospectus. We refer to the Series F convertible preferred stock issued hereunder, the warrants to purchase common stock issued hereunder and the shares of common stock issuable upon conversion of the Series F convertible preferred stock and upon exercise of the warrants issued hereunder, collectively, asand will expire five years from the securities.

initial exercise date.

The price of our common stock on The Nasdaq Capital Market during recent periods will only be one of many factors in determining the final public offering price. Other factors to be considered in determining the final public offering price include our history, our prospects, the industry in which we operate, our past and present operating results, the previous experience of our executive officers and directors, the general condition of the securities markets at the time of this offering and discussions between the underwriterunderwriters and prospective investors. The recent market price used throughout this prospectus may not be indicative of the final public offering price. All share numbers included in this prospectus are based upon an assumed public offering price and conversion price of $4.67,$0.58, the closing price of our common stock on November 9, 2017.

September 27, 2022.

Our common stock trades on The Nasdaq Capital Market under the ticker symbol “CHFS”“NUWE”. See “Prospectus Summary—Summary – Recent Developments” in this prospectus for important information about the listing of our common stock on The Nasdaq Capital Market. We do not intend to list the warrants or preferred stock to be sold in this offering on any stock exchange or other trading market.

Investing in our common stock involves a high degree of risk. Before making any investment in our securities, you should read and carefully consider the risks described in this prospectus under the section of this prospectus entitled “Risk Factors” on page 711 of this prospectus.

 
PerShare of
Series F Convertible
Class A Unit
Per
Preferred Stock and Accompanying
Warrants
Class B Unit(1)
Per
Share
Total
Public offering price
Underwriting discounts(2)
 
 
 
 
Proceeds, before expenses, to CHF Solutions,Nuwellis, Inc.
 
 
 
 

(1)
The public offering price and underwriting discount corresponds to (x) in respect of the Class A Units (i) a public offering price per share of common stock of $[ ] and (ii) a public offering price per warrant of $[ ] and (y) in respect of the Class B Units (i) a public offering price per share of Series FI Preferred Stock of $[ ],] and (ii) a public offering price per Series 1 warrant to purchase one share of common stock of $[] (or $[] for Series 1 warrants to purchase 214 shares of common stock), and a public offering price per Series 2 warrant of $[] (or $[] for Series 2 warrants to purchase 214 shares of common stock). ].
(2)
(2)
We have agreed to pay certain expenses of the underwriterunderwriters in this offering. We refer you to “Underwriting” on page 5033 for additional information regarding underwriting compensation.

Our Chief Executive Officer has indicatedThe underwriters have the option to purchase up to (i) 2,698,650 additional shares of common stock, and/or (ii) additional warrants to purchase up to 2,698,650 additional shares of common stock solely to cover over-allotments, if any, at the public offering price per share of common stock and the public offering price per warrant set forth above less the underwriting discounts and commissions. The over-allotment option may be used to purchase shares of common stock and/or warrants, or any combination thereof, as determined by the underwriters, but such purchases cannot exceed an interest in purchasing approximately $100,000aggregate of 15% of the number of shares of common stock (including the number of shares of common stock issuable upon conversion of shares of Series F convertible preferred stockI Preferred Stock) and accompanying warrants in this offering on15% of the same terms and at the same price as the Series F convertible preferred stock and accompanying warrants sold toin the public in thisprimary offering. The underwriter will receiveover-allotment option is exercisable for 45 days from the same underwriting discount on any Series F convertible preferred stock and accompanying warrants purchased by our Chief Executive Officer as it will on any other Series F convertible preferred stock and accompanying warrants sold to the public indate of this offering.

prospectus.

Neither the Securities and Exchange CommissionSEC nor any state securities commission has approved or disapproved of these securities or passed on the adequacydetermined if this prospectus is truthful or accuracy of this prospectus.complete. Any representation to the contrary is a criminal offense.

The underwriter expects to deliver

We anticipate that delivery of the securities to purchaserswill be made through the facilities of the Depository Trust Company on or about [], 2017.

 ], 2022.

Sole Book-Running Manager

Ladenburg Thalmann

The date of this prospectus is [], 2017.

  ], 2022

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You should rely only on the information contained in this prospectus and any free-writing prospectus that we authorize to be distributed to you. We have not, and the underwriter hasunderwriters have not, authorized anyone to provide you with information different from or in addition to that contained in this prospectus or any related free-writing prospectus. If anyone provides you with different or inconsistent information, you should not rely on it. We are offering to sell, and are seeking offers to buy, the securities offered by this prospectus only in jurisdictions where offers and sales are permitted. The information contained in this prospectus is accurate only as of the date of this prospectus, regardless of the time of delivery of this prospectus or of any sale of the securities. Our business, financial conditions, results of operations and prospects may have changed since that date.

You should also read and consider the information in the documents to which we have referred you under the caption “Where You Can Find Additional Information” in this prospectus.

We have not, and the underwriters have not, done anything that would permit this offering or possession or distribution of this prospectus in any jurisdiction where action for that purpose is required, other than in the United States. Persons outside the United States who come into possession of this prospectus must inform themselves about, and observe any restrictions relating to the offering of the securities and distribution of this prospectus outside the United States.
We obtained industry and market data used throughout and incorporated by reference into this prospectus through our research, surveys and studies conducted by third parties and industry and general publications. We have not independently verified market and industry data from third-party sources.

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ABOUT THIS PROSPECTUS

This prospectus is part of a registration statement on Form S-1 that we filed with the Securities and Exchange Commission (“SEC”). It omits some of the information contained in the registration statement and reference is made to the registration statement for further information with regard to us and the securities being offered hereby. You should review the information and exhibits in the registration statement for further information about us and the securities being offered hereby. Statements in this prospectus concerning any document we filed as an exhibit to the registration statement or that we otherwise filed with the SEC are not intended to be comprehensive and are qualified by reference to the filings. You should review the complete document to evaluate these statements.

You should read this prospectus, any documents that we incorporate by reference in this prospectus and the additional information described below under “Where You Can Find Additional Information” and “Information Incorporated by Reference” before making an investment decision. You should rely only on the information contained or incorporated by reference in this prospectus. We have not authorized any other person to provide you with different information. If anyone provides you with additional, different or inconsistent information, you should not rely on it. This prospectus is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.

You should not assume that the information in this prospectus or any documents we incorporate by reference herein is accurate as of any date other than the date on the front of such document. Our business, financial condition, results of operations and prospects may have changed since those dates.

WHERE YOU CAN FIND ADDITIONAL INFORMATION

We file reports, proxy statements and other information with the SEC in accordance with the Securities Exchange Act of 1934, as amended (the “Exchange Act”). You may read and copy our reports, proxy statements and other information filed by us at the public reference room of the SEC located at 100 F Street, N.E., Washington, D.C. 20549, on official business days during the hours of 10 a.m. to 3 p.m. Please call the SEC at 1-800-SEC-0330 for further information about the public reference rooms. Our reports, proxy statements and other information filed with the SEC are available free of charge to the public over the Internet at the SEC’s website at http://www.sec.gov.

INFORMATION INCORPORATED BY REFERENCE

SEC rules allow us to “incorporate by reference” into this prospectus much of the information we file with the SEC, which means that we can disclose important information to you by referring you to those publicly available documents. The information that we incorporate by reference into this prospectus is considered to be part of this prospectus. These documents may include Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K, as well as proxy statements. You should read the information incorporated by reference because it is an important part of this prospectus.

This prospectus incorporates by reference the documents listed below, other than those documents or the portions of those documents deemed to be furnished and not filed in accordance with SEC rules:

our Annual Report on Form 10-K for the fiscal year ended December 31, 2016, filed with the SEC on March 8, 2017;
our Quarterly Reports on Form 10-Q for the quarter ended March 31, 2017, filed with the SEC on May 12, 2017, for the quarter ended June 30, 2017, filed with the SEC on August 10, 2017, and for the quarter ended September 30, 2017, filed with the SEC on November 2, 2017;
our Current Reports on Form 8-K filed with the SEC on January 10, 2017, January 13, 2017, February 3, 2017, February 10, 2017, February 16, 2017, March 3, 2017, March 22, 2017, March 24, 2017, March 29, 2017, April 11, 2017, April 25, 2017, April 28, 2017, May 5, 2017, May 23, 2017, May 30, 2017, June 2, 2017, June 9, 2017, October 12, 2017, October 30, 2017;
the information specifically incorporated by reference into our Annual Report on Form 10-K for the year ended December 31, 2016 from our definitive proxy statement for the annual meeting of stockholders held on May 25, 2017, filed with the SEC on April 13, 2017;
the description of our common stock in our registration statement on Form 10 filed with the SEC on September 30, 2011, including any amendment or report filed for the purpose of updating such description; and

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the description of our Series A Junior Participating Preferred Stock, par value $0.0001 per share, in our registration statement on Form 8-A filed with the SEC on June 14, 2013.

Any statement contained in any document incorporated by reference herein shall be deemed to be modified or superseded for purposes of this prospectus to the extent that a statement contained in this prospectus or any prospectus modifies or supersedes such statement. Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this prospectus.

We also incorporate by reference any future filings, other than current reports furnished under Item 2.02 or Item 7.01 of Form 8-K and exhibits filed on such form that are related to such items, made with the SEC pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act, in each case, other than those documents or the portions of those documents deemed to be furnished and not filed in accordance with SEC rules, until the offering of the securities under the registration statement of which this prospectus forms a part is terminated or completed. Information in such future filings updates and supplements the information provided in this prospectus. Any statements in any such future filings will be deemed to modify and supersede any information in any document we previously filed with the SEC that is incorporated or deemed to be incorporated herein by reference to the extent that statements in the later filed document modify or replace such earlier statements.

Because we are incorporating by reference future filings with the SEC, this prospectus is continually updated and later information filed with the SEC may update and supersede some of the information included or incorporated by reference in this prospectus. This means that you must look at all of the SEC filings that we incorporate by reference to determine if any of the statements in this prospectus or in any document previously incorporated by reference have been modified or superseded.

These documents may also be accessed on our website at www.chf-solutions.com. Information contained in, or accessible through, our website is not a part of this prospectus.

We will provide without charge to each person, including any beneficial owners, to whom this prospectus is delivered, upon his or her written or oral request, a copy of any or all reports or documents referred to above which have been or may be incorporated by reference into this prospectus but not delivered with this prospectus, excluding exhibits to those reports or documents unless they are specifically incorporated by reference into those documents. You may request a copy of these documents by writing or telephoning us at the following address.

CHF Solutions, Inc.
12988 Valley View Road
Eden Prairie, Minnesota 55344
(952) 345-4200
Attention: Claudia Drayton
Chief Financial Officer

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PROSPECTUS SUMMARY

This summary highlights information contained elsewhere in this prospectus and does not contain all of the information that you should consider in making your investment decision. Before deciding to invest in our securities, you should read this entire prospectus carefully, including our filings incorporated by reference herein to which we have referred you in the sections “Where You Can Find Additional Information,” “Information Incorporated by Reference” and “Risk Factors”, including our financial statements and related notes. Unless the context otherwise requires, references in this prospectus to the “Company,” “CHFS,” “we,” “us”, and “our” refer to CHF Solutions, Inc.

Company Overview

We are a medical device company focused on commercializing our Aquadex FlexFlow® ultrafiltration system. The Aquadex FlexFlow system consists of:

A console, a piece of capital equipment containing electromechanical pumps and an LCD screen,
A one-time disposable blood set (the “Aquadex Blood Set”), an integrated collection of tubing, filter, sensors, and connectors that contain and deliver the blood from and back to the patient, and
A disposable catheter (the “Aquadex Catheter”), a small, dual-lumen catheter designed to access the peripheral venous system of the patient and to simultaneously withdraw blood and return filtered blood to the patient.

The Aquadex Blood Set is proprietary and the Aquadex FlexFlow system can only be used with the Aquadex Blood Set. The Aquadex Catheter is often used in conjunction with the Aquadex FlexFlow system, although it is one of many potential catheter options available to the provider.

The Aquadex FlexFlow system is designed to simply, safely, and precisely remove excess fluid (primarily excess salt and water) from patients suffering from fluid overload who have failed diuretic therapy. Heart failure is the leading cause of fluid overload, a condition where patients become decompensated resulting in lengthy and costly hospitalizations. Based on data from the National Health and Nutrition Examination Survey conducted by the Centers for Disease Control and Prevention/National Center for Health Statistics from 2011 to 2014, the American Heart Association estimates that 6.5 million people in the United States, age 20 and over, had heart failure. Based on the Atherosclerosis Risk in Communities Study from 2005 to 2013, conducted by the National Heart, Lung and Blood Institute, there are an estimated 960,000 new heart failure cases annually. Annual hospitalizations for heart failure exceed 1 million in United States and Europe, and more than 90% are due to symptoms and signs of fluid overload.

The Aquadex FlexFlow system is indicated for temporary (up to eight hours) ultrafiltration treatment of patients with fluid overload who have failed diuretic therapy, and extended (longer than 8 hours) ultrafiltration treatment of patients with fluid overload who have failed diuretic therapy and require hospitalization.

With the Aquadex FlexFlow system, medical practitioners can specify and control the amount of fluid to be extracted at a safe, predictable, and effective rate, in a process we refer to as Aquapheresis® therapy. All Aquapheresis treatments must be administered by a healthcare provider, under physician prescription, both of whom have received training in extracorporeal therapies. The Aquadex FlexFlow system has been shown to have no clinically significant impact on electrolyte balance, blood pressure or heart rate.1

The Aquadex FlexFlow ultrafiltration system offers a safe approach to treating fluid overload and:

Provides complete control over rate and total volume of fluid removed by allowing a medical practitioner to specify the amount of fluid to be removed from each individual patient
Aquapheresis therapy can be performed via peripheral or central venous access
Removes isotonic fluid (extracts sodium while sparing potassium and magnesium)2
1SAFE Trial: Jaski BE, et al. J Card Fail. 2003 Jun; 9(3): 227-231; RAPID Trial: Bart BA, et al. J Am Coll Cardiol. 2005 Dec 6; 46(11): 2043-2046.
2Ali SS, et al. Congest Heart Fail. 2009; 15(1):1-4.

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Following ultrafiltration, neurohormonal activation is reset toward a more physiological condition and diuretic efficacy is restored3
Provides highly automated operation with only one setting required to begin
Utilizes a single-use, disposable auto-loading blood filter circuit that facilitates easy set-up
The console guides medical practitioner through the setup and operational process
Decreased hospital length of stay and readmissions

Until July 2016, we were focused on developing the C-Pulse® Heart Assist System, or C-Pulse System, for treatment of Class III and ambulatory Class IV heart failure. In August 2016, we acquired the Aquadex FlexFlow system (the “Aquadex Business”), from Gambro UF Solutions, Inc., a subsidiary of Baxter International Inc., a global leader in the hospital products and dialysis markets (collectively, “Baxter”). On September 29, 2016, we announced a strategic refocus of our near-term strategy that includes halting clinical evaluations related to the C-Pulse System technology to fully focus our resources on the Aquadex Business, taking actions to reduce our cash burn in connection with such strategic refocus and reviewing potential strategic alliances and financing alternatives.

You should read this prospectus, any documents that we incorporate by reference in this prospectus and the additional information described under “Where You Can Find Additional Information” and “Information Incorporated By Reference” before making an investment decision. You should rely only on the information contained or incorporated by reference in this prospectus. We have not authorized any other person to provide you with different information. If anyone provides you with additional, different or inconsistent information, you should not rely on it. This prospectus is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.

You should not assume that the information in this prospectus or any documents we incorporate by reference herein is accurate as of any date other than the date on the front of such document. Our business, financial condition, results of operations and prospects may have changed since those dates.
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PROSPECTUS SUMMARY
This summary highlights information contained elsewhere in this prospectus and does not contain all of the information that you should consider in making your investment decision. Before deciding to invest in our securities, you should read this entire prospectus carefully, including our financial statements and related notes incorporated herein by reference, the information in the section “Risk Factors” and our filings incorporated by reference herein to which we have referred you in the sections “Where You Can Find Additional Information” and “Information Incorporated by Reference.” Unless the context otherwise requires, references in this prospectus to the “Company,” “NUWE,” the “registrant,” “we,” “us” and “our” refer to Nuwellis, Inc.
Company Overview
We are a medical device company dedicated to transforming the lives of patients suffering from fluid overload through science, collaboration, and innovative technology. We are focused on developing, manufacturing, and commercializing medical devices used in ultrafiltration therapy, including the Aquadex FlexFlow® and the Aquadex SmartFlow® systems (collectively the “Aquadex System”). The Aquadex SmartFlow® system is indicated for temporary (up to eight hours) or extended (longer than 8 hours in patients who require hospitalization) use in adult and pediatric patients weighing 20kg or more whose fluid overload is unresponsive to medical management, including diuretics.
Fluid Overload
Fluid overload, also known as hypervolemia, is a condition in which there is too much fluid in the blood and generally refers to the expansion of the extracellular fluid volume. Although the body does need some amount of fluid to remain healthy, too much can cause an imbalance and damage to an individual’s health.1
The signs and symptoms of fluid overload are not always the same in each patient and may vary. However, signs and symptoms of fluid overload often include pulmonary edema/pleural effusion, peripheral edema, anasarca (generalized swelling) abdominal ascites, jugular vein distention and dyspnea.2 Medical conditions or diseases where excess fluid accumulates in the body are heart failure, kidney disease, nephrotic syndrome, liver cirrhosis, or burn injuries/trauma.3, 4 Individuals may also suffer from temporary fluid overload following certain surgical procedures, such as cardiac surgery. Fluid overload has a significant association with the combined events of death, infection, bleeding, arrhythmia, and pulmonary edema and is a leading cause of readmissions with patients suffering from heart failure and patients following cardiac surgery.5,6
The majority of heart failure signs and symptoms are related to fluid overload and congestion.7 The congestion mechanism is related to sodium retention and extracellular fluid expansion.8 For this reason, diuretics have been the cornerstone of heart failure treatment.9 Currently, there is increasing focus on an evidence based approach to diuretic use acute decompensated heart failures (ADHF) and alternative strategies to manage fluid overload when diuretics fail.10 Peripheral venovenous simplified ultrafiltration has emerged as a technology to manage fluid overload.11
Treatments for Fluid Overload
Diuretics
Treatment for fluid overload has traditionally been achieved through use of loop diuretics which may be accompanied by use of other categories of medications, such as ACE inhibitors, ARNI, beta-blockers, SGLT2
1
https://my.clevelandclinic.org/health/diseases/22962-hypervolemia
2
Schwinger RHG. Cardiovasc Diagn Ther.2021;11(1); 263-76.
3
Hoorn EJ & Ellison DH. Am J Kidney Dis.2016; 69(1): 136-42.
4
Wise R et al. World J Surg.2017; 41: 1170-83.
5
Stein, A et. al. Critical Care, 2012; 16: R99; 1-9
6
Iribarne A, et al. Ann Thorac Surg. 2014 Oct; 98(4): 1274-80
7
Kazory A & Ross EA. Heart. 2009; 95: 1047-51.
8
Kazory A & Ross EA. Heart. 2009; 95: 1047-51.
9
Felker MG et al. J Am Coll Cardiol. 2012 Jun 12;59(24):2145-53.
10
Felker MG et al. J Am Coll Cardiol. 2012 Jun 12;59(24):2145-53.
11
Felker MG et al. J Am Coll Cardiol. 2012 Jun 12;59(24):2145-53.
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inhibitors, and inotropic drugs.12 Although diuretics are the mainstay of treatment for congestion or fluid overload, robust clinical evidence to guide the use of diuretics contribute to persistent uncertainties about appropriate dosing and the overall safety profile.13,14 Furthermore, appropriate titration of diuretics, specifically in the heart failure population, is unclear. Increasing concern exists that diuretics, particularly at high doses, may be deleterious in the inpatient setting.15 Additionally, diuretics are associated with insufficient symptom relief, increased mortality after discharge, and increased re-hospitalization rates.16 In addition, patients with heart failure and cardiorenal syndrome have diminished response to loop diuretics, making these agents less effective at relieving congestion.17
Also, long-term use of diuretics has been associated with kidney damage.18 Approximately 40% of heart failure patients have poor diuretic response.19 This poor response is possibly due to noncompliance or high intake of salt, poor drug absorption, insufficient kidney response to drug, and reduced diuretic secretion.20, 21 Despite treatment with loop diuretics, patients are frequently hospitalized and treated for recurrent symptoms and signs of fluid overload.22 Among more than 50,000 patients enrolled in the Acute Decompensated Heart Failure National Registry (“ADHERE”) study, only 33% lost ≥ 2.27 kg (5 lbs.), and 16% gained weight during hospitalization.23
Nearly one-half of hospitalized patients with heart failure are discharged with residual fluid excess after receiving conventional diuretic therapies.24, 25 Regardless of diuretic strategy, 42% of acutely decompensated heart failure subjects in the DOSE (Diuretic Optimization Strategies Evaluation) trial reached the composite endpoint of death, rehospitalization, or emergency department visit at 60 days.26 There is an association of chronic loop diuretic therapy and greater resource utilization at hospitals.27 Therefore, an alternative therapy to help stabilize or improve patient care is needed.
Ultrafiltration.
Ultrafiltration, or Aquapheresis, is an alternative therapy to diuretics for fluid removal in patients with volume overload. Ultrafiltration has been a well-documented technique in the treatment of fluid overload in heart failure patients for over 50 years.28 Ultrafiltration is a safe and effective alternative therapy to remove extra fluid and salt by gently filtering blood through an ultrafiltration system.29, 30 With ultrafiltration, medical practitioners can specify and control the amount of fluid to be extracted at a safe, predictable, and effective rate.31 The use of ultrafiltration therapy in subgroups of patients, such as heart failure and post-cardiac surgery, has demonstrated clinical benefits in treating
12
Heidenreich P et al. ACC, AHA, HFSA 2022 Heart Failure guidelines. J Am Coll Cardiol. 2021. 1-159.
13
Felker MG et al. J Am Coll Cardiol. 2012 Jun 12;59(24):2145-53.
14
Felker MG et al. J Am Coll Cardiol. 2020; 75(10); 1179-97.
15
Kamath SA.. Int J of Nephrol. 2011. Article ID 190230; 1-6.
16
Costanzo MR, et al. J Am Coll Cardiol. 2017;69(19):2428-45.
17
Kamath SA.. Int J of Nephrol. 2011. Article ID 190230; 1-6.
18
Felker MG et al. J Am Coll Cardiol. 2012 Jun 12;59(24):2145-53.
19
Heidenreich P et al. ACC, AHA, HFSA 2022 Heart Failure guidelines. J Am Coll Cardiol. 2021. 1-159.
20
Wise R et al. World J Surg. 2017; 41: 1170-83.
21
Felker MG et al. J Am Coll Cardiol. 2020; 75(10); 1179-97.
22
Felker GM et al. New Engl J Med. 2011; 364(9): 797-805.
23
Gheorghiade M, Filippatos G. Eur Heart J Suppl. 2005; 7: B13–19.
24
Costanzo MR, et al. J Am Coll Cardiol. 2017;69(19):2428-45.
25
Gheorghiade M, Filippatos G. Eur Heart J Suppl. 2005; 7: B13–19.
26
Felker GM et al. New Engl J Med. 2011; 364(9): 797-805.
27
Costanzo MR, et al. J Am Coll Cardiol. 2007; 49(6): 675-83.
28
Peterangelo M. Prog Cardiol Nurs. 2008; 23: 168-72.
29
Costanzo MR, et al. J Am Coll Cardiol. 2017; 69(19): 2428-45.
30
Jaski BA et al. J Card Fail. 2003; 9(3): 227-31.
31
Costanzo MR, et al. J Am Coll Cardiol. 2017; 69(19): 2428-45.
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fluid overload signs and symptoms.32,33,34,35, 36 In addition to the clinical benefits of ultrafiltration, the therapy provides economic advantages. One hospital cost analysis demonstrated a total cost savings of $3,975, or 14.4%, per patient when using ultrafiltration as compared to diuretic therapy over 90 days.37
The Aquadex System
The Aquadex System is designed and clinically proven to simply, safely, and precisely remove excess fluid (primarily excess salt and water) from patients suffering from fluid overload who have failed diuretic therapy.38 The Aquadex System provides medical practitioners the ability to specify and control the amount of fluid to be extracted at a safe, predictable, and effective rate.39 The Aquadex System has been shown to have no clinically significant impact on electrolyte balance, blood pressure or heart rate.40,41 Unlike other forms of ultrafiltration, which typically require administration specifically by a nephrologist, the Aquadex System may be prescribed by any physician and administered by a healthcare provider, both of whom have received training in extracorporeal therapies.
Benefits of the Aquadex System
The Aquadex System offers a safe approach to treating fluid overload and:
Provides control over rate and total volume of fluid removed by allowing a medical practitioner to specify the amount of fluid to be removed from each individual patient;42
Can be performed via peripheral or central venous access43;
Removes isotonic fluid (extracts sodium while sparing potassium and magnesium);44, 45
Following ultrafiltration, neurohormonal activation is reset toward a more physiological condition and diuretic efficacy is restored46, 47;
Provides highly automated operation with only one setting required to begin therapy48;
Uses a single-use, disposable auto-loading blood filter circuit that facilitates easy set-up49;
Has a built-in console that guides the medical practitioner through the setup and operational process; and
Has demonstrated decreased hospital readmissions and reduced length of stay duration resulting in cost savings at 90 days.50, 51, 52, 53
32
Costanzo MR, et al. J Am Coll Cardiol. 2017; 69(19): 2428-45.
33
Kazory A. Clin J Am Soc Nephro. 2013; 8; 1816-28.
34
Luciani GB, et al. Circ. 2001 Sep 18; 104(12 Suppl 1): I253-I259.
35
Kiziltepe, U, et al. Ann Thorac Surg. 2001 Feb;71(2): 684-93.
36
Sahoo, TK, et al. Indian J Thorac Cardiovas Surg. 2007 Jun;23(2): 116-124.
37
Costanzo MR, et. al. Value Health. 2018; 21 (Suppl 1): S167.
38
Felker GM et al. New Engl J Med. 2011; 364(9): 797-805.
39
Costanzo MR, et al. J Am Coll Cardiol. 2017; 69(19): 2428-45.
40
Bart BE at al. J Am Coll Cardiol. 2005 Dec 6; 46(11): 2043-46.
41
Costanzo MR et al. J Am Coll Cardiol. 2005; 46(11): 2047-51.
42
Peterangelo M. Prog Cardiol Nurs. 2008; 23:168-72.
43
Peterangelo M. Prog Cardiol Nurs. 2008; 23:168-72.
44
Felker GM et al. New Engl J Med. 2011; 364(9): 797-805.
45
Kazory A. Clin J Am Soc Nephro. 2013; 8; 1816-28.
46
Costanzo MR, et al. J Am Coll Cardiol. 2017; 69(19): 2428-45.
47
Kazory A. Clin J Am Soc Nephro. 2013; 8; 1816-28.
48
Costanzo MR, et al. J Am Coll Cardiol. 2007; 49(6): 675-83.
49
Felker GM et al. New Engl J Med. 2011; 364(9): 797-805.
50
Costanzo MR, et al. J Am Coll Cardiol. 2017; 69(19): 2428-45.
51
Kazory A. Clin J Am Soc Nephro. 2013; 8; 1816-28.
52
Costanzo MR, et. al. Value Health. 2018; 21 (Suppl 1): S167.
53
Costanzo MR et al. J Am Coll Cardiol. 2005; 46(11): 2047-51.
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Components of the Aquadex System
The Aquadex System consists of:
A console, a piece of capital equipment containing electromechanical pumps and an LCD screen;
A one-time disposable blood circuit set, consisting of an integrated collection of tubing, filter, sensors, and connectors that contain and deliver the blood from and back to the patient; and
A disposable catheter, consisting of a small, dual-lumen extended length catheter designed to access the peripheral venous system of the patient and to simultaneously withdraw blood and return filtered blood to the patient.
The Aquadex blood circuit set is proprietary and the Aquadex System can only be used with the Aquadex blood circuit set. The dual lumen extended length catheter (dELC) is designed for use with the Aquadex System, although it is one of many potential catheter options available to the healthcare provider.
Corporate Information

CHF Solutions,

Nuwellis, Inc. (then, Sunshine Heart, Inc.) was incorporated in Delaware on August 22, 2002. We began operating our business in November 1999 through Sunshine Heart Company Pty Limited, which currently iswas a wholly owned Australian subsidiary of CHF Solutions,Nuwellis, Inc. Our common stock began trading on the Nasdaq Capital Market on February 16, 2012 under the symbol “SSH”. We delisted from the ASX at the close of trading on May 6, 2013. On May 23, 2017, we changed our name to CHF Solutions, Inc. and changed our trading symbol to “CHFS”.

2012.

Our principal executive offices are located at 12988 Valley View Road, Eden Prairie, Minnesota 55344, and our telephone number is (952) 345-4200. Our website address is www.chf-solutions.com.www.nuwellis.com. Our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, and Current Reports on Form 8-K and amendments to reports filed pursuant to Sections 13(a) and 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) will be made available free of charge on our website as soon as reasonably practicable after we electronically file such material with, or furnish it to, the SEC.Securities and Exchange Commission (“SEC”). These reports are also available on the SEC’s website, www.sec.gov. The information on, or that may be accessed through, our website is not incorporated by reference into and should not be considered a part of this prospectus or the registration statement of which it forms a part.

We qualify as an “emerging growth company” as defined in the Jumpstart our Business Startups Act of 2012 or the JOBS Act. Furthermore, we are, and will remain, a smaller“smaller reporting companycompany” as long as our public float remains less than $75$250 million as of the last business day of our most recently-completed second fiscal quarter. An emerging growth company orA smaller reporting company may take advantage of specified reduced reporting and other requirements that are otherwise applicable generally to U.S. public companies. These provisions include an exemptionAs long as our public float remains below $75 million as of the last business day of our most recently completed second fiscal quarter, we are exempt from the attestation requirement in the assessment of our internal control over financial reporting by our independent auditors pursuant to section 404 (b)Section 404(b) of the Sarbanes-Oxley Act of 2002 (“SOX”), but do not preclude us from the requirementare required to make our own internal assessment of the effectiveness of our internal controls over financial reporting.

In addition, the JOBS Act permits emerging growth companies to take advantage of an extended transition period to comply with new or revised accounting standards applicable to U.S. public companies. We may take advantage of these provisions until December

Recent Developments
Nasdaq Notice
On May 31, 2017. We have elected to take advantage of the benefits of this extended transition period, and as a result of this election, our financial statements may not be comparable to those of companies that comply with new or revised accounting standards for U.S. public companies.

3Marenzi G, et al. J Am Coll Cardiol. 2001 Oct; 38(4): 963-968.

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Recent Developments

Nasdaq Compliance

On June 1, 2017,2022, we received a notificationletter (the “Notice”) from The NASDAQthe Listing Qualifications Department (the “Staff”) of the Nasdaq Stock Market LLC (“Nasdaq”) informing us that because the closing bid price for our common stock listed on Nasdaq was below $1.00 for 30 consecutive trading days, we were no longernot in compliance with the minimum bid price requirement for continued listing on The Nasdaq Capital Market, as set forth in Nasdaq Marketplace Rule 5550(a)(2) (the “Minimum Bid Price Requirement”).

In accordance with Nasdaq Marketplace Rule 5810(c)(3)(A), the bid priceCompany has a period of shares of our common stock closed below the minimum $1.00 per share for the 30 consecutive business days prior to the date of the notice. Nasdaq also notified us that we were provided 180 calendar days from May 31, 2022, or until November 28, 2017,2022, to regain compliance with the minimumMinimum Bid Price Requirement. If at any time before November 28, 2022, the closing bid price requirement. Accordingly, we implementedof the reverseCompany’s common stock split described below. On October 27, 2017, we received formal notice fromcloses at or above $1.00 per share for a minimum of 10 consecutive trading days (which number days may be extended by Nasdaq in the exercise of its discretion), Nasdaq will provide written notification that we had regainedthe Company has achieved compliance with the minimum $1.00 bid price requirement, as set forth in Nasdaq Listing Rule 5550(a)(2),Minimum Bid Price Requirement, and the matter is now closed. We cannot assure youwould be resolved.
The Notice also disclosed that we willin the event the Company does not regain compliance with the Minimum Bid Price Requirement by November 28, 2022, the Company may be able continueeligible for additional time. To qualify for additional time, the Company would be required to meet the Nasdaqcontinued listing standards. If do not continue to meet any of the Nasdaq listing standards, our common stock may be subject to delisting from Nasdaq.

Reverse Stock Split

At a special meeting of our stockholders on October 10, 2017, our stockholders approved, among other things, a reverse stock split, and following such special meeting, our Board of Directors approved a 1-for-20 reverse split of our issued and outstanding shares of common stock. We filed with the Secretary of State of the State of Delaware a Certificate of Amendment to our Fourth Amended and Restated Certificate of Incorporation to effect the reverse stock split. The reverse stock split was effective as of 5:00 p.m. Eastern Time on October 12, 2017, and our common stock began trading on a split-adjusted basis on The Nasdaq Capital Market on October 13, 2017. The reverse stock split did not change the parrequirement for market value of our stock or the authorized number of common or preferred shares. All share and per share amounts in this prospectus and the registration statement of which it forms a part have been retroactively adjusted to reflect the reverse stock split for all periods presented.

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publicly held shares and all other initial listing standards for Nasdaq, with the exception of the bid price requirement, and would need to provide written notice of our intention to cure the deficiency during the second compliance period, by effecting a reverse stock split, if necessary. If the Company meets these requirements, Nasdaq will inform the Company that it has been granted an additional 180 calendar days. However, if it appears to the Staff that the Company will not be able to cure the deficiency, or if the Company is otherwise not eligible, Nasdaq will provide notice that the Company’s securities will be subject to delisting.
The Company intends to continue actively monitoring the closing bid price for the Company’s common stock between now and November 28, 2022, and it will consider available options to resolve the deficiency and regain compliance with the Minimum Bid Price Requirement. If the Company does not regain compliance within the allotted compliance period, including any extensions that may be granted by Nasdaq, Nasdaq will provide notice that the Company’s common stock will be subject to delisting. The Company would then be entitled to appeal that determination to a Nasdaq hearings panel. There can be no assurance that the Company will regain compliance with the Minimum Bid Price Requirement during the 180-day compliance period, secure a second period of 180 calendar days to regain compliance, or maintain compliance with the other Nasdaq listing requirements.
Departure of George Montague and Appointment of Rob Scott
On September 19, 2022, George Montague notified the Company of his decision to resign as the Company’s Chief Financial Officer. On September 22, 2022, the board of directors of the Company appointed Nestor Jaramillo, Jr., the Company’s current President and Chief Executive Officer, as the Company’s interim Chief Financial Officer, and Rob Scott, the Company’s Senior Director, Financial Planning & Analysis, as the Company’s interim Principal Accounting Officer. Mr. Jaramillo has served as the Company’s President and Chief Executive Officer since January 2021. Mr. Scott joined the Company in January 2014 and has served in his current position since June 2022.
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The Offering

Issuer
CHF Solutions,Nuwellis, Inc.
Securities offered by usClass A Units Offered
We are offering 10,000 shares10,794,602 Class A Units. Each Class A Unit consists of Series F convertible preferred stock. Eachone share will be accompanied by (a) Series 1 warrants to purchase a number of shares of common stock equaland a warrant to 100%purchase one share of our common stock (together with the shares of common stock initially issuableunderlying such warrants).
Offering Price per Class A Unit
$0.58 combined public offering price for each Class A Unit based upon conversion of the Series F convertible preferred stock, as described below, and (b) Series 2 warrants to purchase a number of shares of common stock equal to 100% of the shares of common stock initially issuable upon conversion of the Series F convertible preferred stock, as described below. This prospectus also relates to thean assumed public offering of the shares of common stock issuable upon conversion of the Series F convertible preferred stock and exercise of the Series 1 warrants and Series 2 warrants.
Description of Series F preferred stock
The Series F preferred stock has a liquidation preference, has full ratchet price based anti-dilution protection, and is subject to certain ownership limitations. In addition, we have the right to require holders to convert the Series F preferred stock if certain equity conditions are met and if the volume weighted average price of our common stock exceeds 300% of$0.58, the conversion price for any 20 of 30 consecutive trading days and the daily dollar trading volume during such period exceeds $200,000 per trading day. See the section entitled “Description of Securities—Description of Series F Preferred Convertible Stock” beginning on page 41. This prospectus also relates to the offering of shares of common stock issuable upon conversion of the Series F preferred stock at its initial conversion price.
Conversion price of Series F preferred stock
$       per share (subject to adjustment as described in this prospectus), which is 100% of the consolidated closing bid price of our common stock on The nasdaq Capital Market on the date we entered into the underwriting agreement. Until the volume weighted average price of our common stock exceeds 300% of the conversion price of the Series F preferred stock for any 20 of 30 consecutive trading days and the daily dollar trading volume for each trading day during such period exceeds $200,000 per trading day, the Series F preferred stock has full ratchet price based anti-dilution protection, subject to customary carve-outs, in the event of a down-round financing below the conversion price.
Shares of common stock underlying the Series F preferred stock
2,141,328 (Based on a Series F preferred stock conversion price of $       per share, which was 100% of the consolidated closing bid price of our common stock on The Nasdaq Capital Market on the date we entered into the underwriting agreement.)September 27, 2022.
Class B Units Offered
Limitations on beneficial ownership
Notwithstanding anything hereinWe are also offering 7,196,401 Class B Units to the contrary, no holder will be permittedpurchasers who prefer not to convert its Series F preferred stock or exercise its warrants if, after such conversion or exercise, such holder would beneficially own more than 4.99% (or, at the election of the purchaser, 9.99%) of our outstanding common stock following the consummation of this offering. Each Class B Unit will consist of one share of Series I Preferred Stock, par value $0.0001 per share, convertible into one share of common stock and a warrant to purchase one share of common stock (together with the shares of common stock then outstanding (subject to the rightunderlying such shares of the

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holder to increase such beneficial ownership limitation upon not less than 61 days prior notice provided that such limitation can never exceed 9.99%Series I Preferred Stock and such 61 day period cannot be waived)warrants).

Series 1Offering Price per Class B Unit
$0.58 combined public offering price for each Class B Unit based upon an assumed public offering price of $0.58, the closing price of our common stock on The Nasdaq Capital Market on September 27, 2022.
Description of warrants
Under Nasdaq listing rules, the warrants are not exercisable without stockholder approval. We areintend to promptly seek, after this offering, Series 1 warrants to purchase up to 2,141,328stockholder approval for issuances of shares of common stock. Each Series 1 warrantstock issuable upon exercise of the warrants (the “Warrant Stockholder Approval”). We cannot assure you that we will be able to obtain this requisite approval. The warrants will be exercisable beginning on the date the Warrant Stockholder Approval is obtained, if at all, and expire on the fifth anniversary of the initial exercise date and the warrants underlying the Units will have an assumed initial exercise price of $per share equal to $[  ] per share, subject to appropriate adjustment in the event of recapitalization events, stock dividends, stock splits, stock combinations, reclassifications, reorganizations or similar events affecting our common stock,stock. In the event that we are unable to obtain the Warrant Stockholder Approval, the warrants will not be exercisable upon issuance and will expire ontherefore have no value.
Description of Series I Preferred Stock
Each share of Series I Preferred Stock is convertible at any time at the first anniversaryholder’s option into one share of common stock. Notwithstanding the dateforegoing, we shall not affect any conversion of issuance. This prospectus also relatesSeries I Preferred Stock, with certain exceptions, to the offeringextent that, after giving effect to an attempted conversion, the holder of shares of Series I Preferred Stock (together with such holder’s affiliates, and any persons acting as a group together with such holder or any of such holder’s affiliates) would beneficially own a number of shares of our common stock in excess of 4.99% (or, upon election by a holder prior to the issuance of any Series I Preferred Stock,
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9.99%) of the shares of common stock issuable upon exercise of the Series 1 warrants.
Series 2 warrants
We are offering Series 2 warrants to purchase up to 2,141,328 shares of common stock. Each Series 2 warrant will have an initial exercise price of $ per share, subject to appropriate adjustment in the event of recapitalization events, stock dividends, stock splits, stock combinations, reclassifications, reorganizations or similar events affecting our common stock will be exercisable upon issuance and will expirethen outstanding after giving effect to such conversion. For additional information, see “Description of Securities-Description of Capital Stock-Preferred Stock-Series I Convertible Preferred Stock Being Offered Pursuant to this Prospectus” on the seventh anniversarypage 28 of the date of issuance. This prospectus also relates to the offering of the shares of common stock issuable upon exercise of the Series 2 warrants.

Series 1 warrants and the Series 2 warrants are collectively referred to as the “warrants.” The form of warrant is filed as an exhibit to the registration statement of which this prospectus is a part.

prospectus.
Shares of common stock underlying the warrants
4,282,65517,991,003 shares.
Shares of common stock outstanding immediately before this offering
625,79110,537,606 shares as of October 31, 2017.September 15, 2022.
Shares of common stock to be outstanding immediately after this offering
625,79121,332,208 shares (2,767,119(28,528,609 shares on an as-converted basis, assuming the conversion of the Series I Preferred Stock in full).
Shares of Preferred Stock outstanding immediately before this offering
We have no shares of Series I Preferred Stock outstanding prior to this offering and we have 127 shares of Series F Convertible Preferred Stock (the “Series F Preferred Stock).Stock”) outstanding prior to this offering as of September 15, 2022.
Shares of Preferred Stock outstanding immediately after this offering
Shares7,196,401 shares of Series I Preferred Stock and 127 shares of Series F Preferred Stock outstanding before thisStock.
Over-allotment option
We have granted the underwriters an option to purchase up to (i) 2,698,650 additional shares of common stock, and/or (ii) additional warrants to purchase up to 2,698,650 additional shares of common stock solely to cover over-allotments, if any, at the assumed public offering
None.
Shares price per share of common stock and the assumed public offering price per warrant set forth above less the underwriting discounts and commissions. The over-allotment option may be used to purchase shares of common stock and/or warrants, or any combination thereof, as determined by the underwriters, but such purchases cannot exceed an aggregate of 15% of the number of shares of common stock (including the number of shares of common stock issuable upon conversion of shares of Series FI Preferred Stock to be outstanding after this offeringStock) and 15% of the warrants sold in the primary offering.
10,000 shares.
Market for the common stockExchange listing
Our common stock is listed on The Nasdaq Capital Market under the symbol “CHFS”“NUWE”. See “—“Prospectus Summary – Recent Developments” above for important information about the listing of our common stock on The Nasdaq Capital Market.
Use of Proceeds
We intend to use the net proceeds from this offering for working capital needs for our Aquadex product, including for the purchase of Baxter’s remaining Aquadex product inventory for $1.2 million by February 1, 2018, for general corporate purposes, including the continuing expansion of our field sales force, and to fund anticipated clinical studies. See “Use of Proceeds” herein.

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No listing of Series F Preferred Stock
We do not intend to apply for listing of the Series F Preferred Stock on any securities exchange or trading system.
No listing of warrants
We do not intend to apply for listing of the warrants on any securities exchange or trading system. Without an active trading market, the liquidity of the warrants will be limited.
Potential Insider Participation
Our Chief Executive Officer has indicated an interest in purchasing approximately $100,000No listing of Series F convertible preferredI Preferred Stock
We do not intend to apply for listing of the Series I Preferred Stock on any securities exchange or trading system. Without an active trading market, the liquidity of the Series I Preferred Stock will be limited.
Leak-out Agreements
Certain investors in the offering may enter into leak-out agreements pursuant to which each such investor will agree to certain limits on sales of the shares of common stock, and accompanying warrantsincluding shares of common stock purchased in this offering onand the same terms
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shares of common stock issuable upon the exercise of the warrants and at the same price asconversion of the Series F convertible preferred stock and accompanying warrants soldI Preferred Stock. See “Underwriting” for additional information.
Use of Proceeds
We currently intend to use the publicnet proceeds from the sale of Units in this offering. The underwriter will receiveoffering for general corporate purposes, including for continued investments in our commercialization efforts. See “Use of Proceeds.”
Risk Factors
Investing in our securities involves a high degree of risk. You should carefully review and consider the same underwriting discount on any Series F convertible preferred stock and accompanying warrants purchased by our Chief Executive Officer as it will on any other Series F convertible preferred stock and accompanying warrants sold to the public insection of this offering.
Risk Factors
Seeprospectus entitled “Risk Factors” beginning on page 711 and other information included inof this prospectus for a discussion of factors that you shouldto consider carefully before deciding to invest in this offering.

Except as otherwise indicated, all information in this prospectus is based on 625,79110,537,606 shares of common stock outstanding as of October 31, 2017September 15, 2022, assuming no exercise of the overallotment option granted to the underwriters and excludes the shares of common stock being offered by this prospectus or issuable upon conversion of the Series F Preferred Stock or exercise of warrants being offered by this prospectus and also excludes the following:

36,8681,200,259 shares of common stock issuable upon the exercise of outstanding stock options, having a weighted average exercise price of $90.70$4.78 per share and 297 shares of common stock issuable upon the vesting of restricted stock units;share;
496,4681,630,627 shares of our common stock issuable upon the exercise of outstanding warrants (other than the warrants offered hereby) with a weighted-average exercise price of $26.10$25.47 per share; and
50,800 shares of common stock issuable upon the conversion of the 127 outstanding shares of our Series F Preferred Stock;
57,2841,921,713 shares of our common stock reserved for future issuance under our equity incentive plans.plans;
7,196,401 shares of common stock underlying the Series I Preferred Stock; and
17,991,003 shares of common stock underlying the warrants.
To the extent that additional shares of common stock are issued upon the exercise of outstanding options or warrants, the conversion of our outstanding Series F Convertible Preferred Stock the vesting of restricted stock units or additional grants are made pursuant to our equity incentive plans, there will be dilution to new investors. All share and per share amounts for all periods presented in this prospectus and the registration statement of which it forms a part have been retroactively adjusted to reflect the reverse stock splits we previously effected on January 12, 2017, October 12, 2017, January 2, 2019 and October 16, 2020.
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SUMMARY OF RISK FACTORS

An investment in our securities has

Our business is subject to a high degreenumber of risk. Before you invest you should carefully consider the risksrisks. The principal factors and uncertainties described below and the other information in this prospectus. Any of the risks and uncertainties set forth herein could materially and adversely affect our business, results of operations and financial condition, which in turn could materially and adversely affect the trading price or value of our securities. Additional risks not currently known to us or which we consider immaterial based on information currently available to us may also materially adversely affect us. As a result, you could lose all or part of your investment.

Risks Related to Our Business

include, among others:

We have limited history of operations and limited experience in sales and marketing, and we might be unsuccessful in increasing our sales and cannot assure you that we will ever generate substantial revenue or be profitable.

Prior to our acquisition of the Aquadex FlexFlow system in August 2016, we did not have a product approved for commercial sale and focused our resources on developing, manufacturing and commercializing our C-Pulse System. On September 29, 2016, we announced a strategic refocus of our near-term strategy that includes halting all clinical evaluations to fully focus our resources on our recently acquired Aquadex FlexFlow system, taking actions to reduce our cash burn in connection with such strategic refocus and reviewing potential strategic alliances and financing alternatives. Our business strategy depends in part on our ability to grow our Aquadex Business by establishing an effective sales force, selling our products to hospitals and other healthcare facilities and controlling costs all of which we may be unable to do. We have no prior experience with respect to manufacturing, sales or marketing. If we are unsuccessful at manufacturing, marketing and selling our Aquadex FlexFlow system, our operations and potential revenues will be materially adversely affected.

We have incurred operating losses since our inception and anticipate that we will continue to incur operating losses in the near-term. The report of our independent registered public accounting firm issued in connection with To date, the Company has been funded by equity financings, and although the Company believes that it will be able to successfully fund its audit of our financial statements for the fiscal year ended December 31, 2016 expresses substantial doubt about our ability to continue as a going concern.

We are an emerging company with a history of incurring net losses. We have incurred net losses since our inception, including net losses of $15.8 million and $26.6 million for the years ended December 31, 2016 and 2015, respectively. For the nine months ended September 30, 2017, we incurred a net operating loss of $6.2 million. As of September 30, 2017, our accumulated deficit was $175.2 million.

The report of our independent registered public accounting firm issued in connection with its audit of our consolidated financial statements for the fiscal year ended December 31, 2016 expresses substantial doubt about our ability to continue as a going concern. Prior to August 2016, we did not have any products approved for commercialization, generated only limited revenue from our clinical studies and had significant operating losses as we incurred costs associated with the conduct of clinical studies and our research and development programs for our C-Pulse System. We became a revenue generating company only after acquiring the Aquadex Business in August 2016. We expect to incur additional losses in the near-term as we grow the Aquadex Business, including investments in expanding our sales and marketing capabilities, purchasing inventory, manufacturing components, and complying with the requirements related to being a U.S. public company listed on Nasdaq. To become and remain profitable, we must succeed in expanding the adoption and market acceptance of the Aquadex FlexFlow system. This will require us to succeed in a range of challenging activities, including training personnel at hospitals and effectively and efficiently manufacturing, marketing and distributing the Aquadex FlexFlow system and related components. Thereoperations, there can be no assurance that weit will succeed in these activities, and we may never generate revenues sufficient to achieve profitability. If we do achieve profitability, we may not be able to sustain it.

We believedo so or that it will ever operate profitably. If this financing is not successful or if we raise less than we intend, we will need to raise additional capital to fund our operations in 2018 and beyond. the second quarter of 2023. If additional capital is not available, we will have to delay, reduce or cease operations.

We believe that we will need to These factors raise additional capital to fund our operations in 2018 and beyond. Changing circumstances may cause us to consume capital significantly faster than we currently anticipate and could adversely affect oursubstantial doubt about the Company’s ability to raise additional capital. Additional financing may not be available when we need it or may not be available on terms that are favorable to us. In addition, the risk that we may not be able to continue as a going concern may make it more difficult to obtain necessary additional funding on terms favorable to us, or at all. If we raise additional funding through the issuance of equity securities, our stockholders may suffer dilution and our ability

next twelve months.

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to use our net operating losses to offset future income may be limited. If we raise additional funding through debt financing, we may be required to accept terms that restrict our ability to incur additional indebtedness, require us to use our cash to make payments under such indebtedness, force us to maintain specified liquidity or other ratios or restrict our ability to pay dividends or make acquisitions. If we are unable to secure additional funding, our development programs and our commercialization efforts would be delayed, reduced or eliminated, our relationships with our suppliers and manufacturers may be harmed, and we may not be able to continue our operations.

Our near-term prospects are highly dependent on revenues from a single product, the Aquadex FlexFlow system. System. We face significant challenges in expanding market acceptance of the Aquadex FlexFlow system,System, which could adversely affect our potential sales and revenues.

Our near-term prospects are highly dependent on revenues from a single product, the Aquadex FlexFlow system, and we have no other commercial products or products in active development at this time. The established market or customer base for our Aquadex FlexFlow system is limited and our success depends on our ability to increase adoption and utilization of the Aquadex FlexFlow system. Acceptance of our product in the marketplace by health care providers is uncertain, and our failure to achieve sufficient market acceptance will significantly limit our ability to generate revenue and be profitable. Market acceptance will require substantial marketing efforts and the expenditure of significant funds by us to inform health care providers of the benefits of using the Aquadex FlexFlow system and to provide further training on its use. We may not be able to build key relationships with health care providers to drive further sales in the United States or sell the Aquadex FlexFlow system outside the United States. Product orders may be cancelled, patients or customers currently using our products may cease to do so and patients or customers expected to begin using our products may not. In addition, market acceptance of the Aquadex FlexFlow system may require that we make enhancements to the system or its components. We cannot be sure that we will be able to successfully develop such enhancements, or that if developed they will be viewed favorable by the market. Our ability to achieve acceptance of our Aquadex FlexFlow system depends on our ability to demonstrate the safety, efficacy, ease-of-use and cost-effectiveness of the system. We may not be able to expand the adoption and market acceptance of the Aquadex FlexFlow system to both the inpatient and outpatient markets and our potential sales and revenues could be harmed.

sales.

We depend on a limited number of customers, the loss of which, or failure of which to order our products in a particular period, could cause our revenues to decline.

Our ten largest customers represented 63.9% or our revenues in the first nine months of 2017, with our largest two customers representing 13.9% and 10.8%, respectively, of our revenues during that period. Customer ordering patterns may vary significantly from quarter to quarter, or customers may discontinue providing therapies using our products. If one of our largest customers reduced its purchases in a fiscal period, our revenues for that period may be materially adversely affected. Further, if one of our largest customers discontinued the use of our products, our revenues may be materially adversely affected.

We do not have limited commercial manufacturing experience and could experience difficulty in producing commercial volumes of the Aquadex FlexFlow systemSystem and related components or may need to depend on third parties for manufacturing.

We have no experience in commercial manufacturing. In connection with the acquisition of the Aquadex Business, we entered into a commercial manufacturing and supply agreement with Baxter, which requires Baxter to manufacture Aquadex Blood Sets and Aquadex Catheters for a period of 18 months following our acquisition of the Aquadex Business. In May 2017, we notified Baxter that we intended to have it cease the manufacturing Aquadex product effective as of June 30, 2017. We completed the transfer of manufacturing equipment for the Aquadex Business that we purchased from Baxter to our manufacturing facility in July 2017. We expect to begin manufacturing Aquadex FlexFlow products in-house in the fourth quarter of 2017. However, because we do not have prior commercial manufacturing experience, we may incur manufacturing inefficiencies, delays or interruptions. We may not be able to achieve low-cost manufacturing capabilities and processes that will enable us to manufacture the Aquadex FlexFlow system or related components in significant volumes, while meeting the legal, regulatory, quality, price, durability, engineering, design and production standards required to market our products successfully. If we experience difficulties with our manufacturing operations, we may experience delays in providing products and services to our customers, and our business could be harmed.

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We depend upon third-party suppliers, including single source suppliers, making us vulnerable to supply problems and price fluctuations.

We will rely on third-party suppliers, including single source suppliers, to provide us with certain components

The COVID-19 outbreak and other public health threats or outbreaks of the Aquadex FlexFlow system. We depend on our suppliers to provide us with materials in a timely manner that meet our quality, quantity and cost requirements. The forecasts of demand we use to determine order quantities and lead times for components purchased from outside suppliers may be incorrect. Our failure to obtain required components or subassemblies when needed and at a reasonable cost would adversely affect our business. These suppliers may encounter problems during manufacturing for a variety of reasons, any of which could delay or impede their ability to meet our demand. Any difficulties in locating and hiring third-party manufacturers, or in the ability of third-party manufacturers to supply quantities of our products at the times and in the quantities we need,communicable diseases could have a material adverse effect on our business.

operations and overall financial performance.

We have been negatively impacted by the prioritization of COVID-19 patients in hospitals.
If we cannot develop adequate distribution, customer service and technical support networks, then we may not be able to market and distribute the Aquadex systemSystem effectively and our sales and revenues will suffer.

Our strategy requires us to provide a significant amount of customer service and maintenance and other technical service to our customers. To provide these services, we have begun, and will need to continue, to develop a network of distribution and a staff of employees and independent contractors in each of the areas in which we intend to operate. We cannot assure that we will be able to organize and manage this network on a cost-effective basis. If we cannot effectively organize and manage this network, then it may be difficult for us to distribute our products and to provide competitive service and support to our customers, in which case customers may be unable, or decide not, to order our products and our sales and revenues will suffer.

We compete against many companies, some of which have longer operating histories, more established products and greater resources than we do, which may prevent us from achieving further market penetration or improving operating results.

Competition from medical device companies and medical device divisions of health care companies, as well as pharmaceutical companies is intense and is expected to increase. Our Aquadex FlexFlow system mainly competes against pharmacological therapies, diuretics, as well as a range of other specialized medical device companies with devices at varying stages of development. Many of these competitors have significantly greater financial and human resources than we do and have established reputations, as well as worldwide distribution channels and sales and marketing capabilities that are significantly larger and more established than ours. Additional competitors may enter the market, and we are likely to compete with new companies in the future. We also face competition from other medical therapies which may focus on our target market as well as competition from manufacturers of pharmaceutical and other devices that have not yet been developed. Competition from these companies could harm our business.

Our ability to compete effectively depends upon our ability to distinguish our Company and our system from our competitors and their products. Factors affecting our competitive position include:

financial resources;
product performance and design;
product safety;
acceptance of our system in the marketplace;
sales, marketing and distribution capabilities;
manufacturing and assembly costs;
pricing of our system and of our competitors’ products;
the availability of reimbursement from government and private health insurers;
success and timing of new product development and introductions;
regulatory approvals in the United States; and
intellectual property protection.

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The competition for qualified personnel is particularly intense in our industry. If we are unable to retain or hire key personnel, we may not be able to sustain or grow our business.

Our ability to operate successfully and manage our potential future growth depends significantly upon our ability to attract, retain and motivate highly skilled and qualified research, technical, clinical, regulatory, sales, marketing, managerial and financial personnel. We face intense competition for such personnel, and we may not be able to attract, retain and motivate these individuals. We compete for talent with numerous companies, as well as universities and nonprofit research organizations. Our future success also depends on the personal efforts and abilities of the principal members of our senior management and scientific staff to provide strategic direction, manage our operations and maintain a cohesive and stable environment. We do not maintain life insurance on the lives of any of the members of our senior management. The loss of key personnel for any reason or our inability to hire, retain and motivate additional qualified personnel in the future could prevent us from sustaining or growing our business.

Significant additional governmental regulation could subject us to unanticipated delays which would adversely affect our sales and revenues.

Our business strategy depends in part on our ability to expand the use of the Aquadex FlexFlow system in the market as quickly as possible. To achieve expanded market use of the Aquadex FlexFlow system, we may develop enhancement to the system or its components. Depending on their nature, such enhancements may be subject to review by the U.S. Food and Drug Administration (the “FDA”) under its regulations. Any regulatory delay in our ability to implement enhancements to the Aquadex FlexFlow system or its components could have an adverse effect on our potential sales and revenues.

Health care laws in the United States and other countries are subject to ongoing changes, including changes to the amount of reimbursement for hospital services. Additional laws and regulations, or changes to existing laws and regulations that are applicable to our business may be enacted or promulgated, and the interpretation, application or enforcement of the existing laws and regulations may change. Legislative proposals can substantially change the way health care is financed by both governmental and private insurers and may negatively impact payment rates for our system. We cannot predict the nature of any future laws, regulations, interpretations, applications or enforcements or the specific effects any of these might have on our business. However, in the United States and international markets, we expect that both government and third-party payers will continue to attempt to contain or reduce the costs of health care by challenging the prices charged, or deny coverage, for health care products and services. Any future laws, regulations, interpretations, applications or enforcements could delay or prevent regulatory approval or clearance of our Aquadex FlexFlow system and our ability to market our Aquadex FlexFlow system. Moreover, changes that result in our failure to comply with the requirements of applicable laws and regulations could result in the types of enforcement actions by the U.S. Food and Drug Administration (the “FDA”) and/or other agencies as described above, all of which could impair our ability to have manufactured and to sell the affected products.

In the United States, the Aquadex FlexFlow products are purchased primarily by customers, such as hospitals or other health care providers. Customers bill various third-party payers for covered Aquadex FlexFlow therapies provided to patients. These payers, which include federal health care programs (e.g., Medicare and Medicaid), state health care programs, private health insurance companies and managed care organizations, then reimburse our customers based on established payment formulas that take into account part or all of the cost associated with these devices and the related procedures performed.

While the agency responsible for administering the Medicare program, the Centers for Medicare and Medicaid Services, has not issued a favorable national coverage determination under its Investigational Device Exception Studies Program for ultrafiltration using the Aquadex FlexFlow system, a number of private insurers have approved reimbursement for Aquadex FlexFlow products for specific indications and points of service. In addition, patients and providers may seek insurance coverage on a case-by-case basis. We are exploring the ability to increase the range of coverage for uses of Aquadex FlexFlow therapies, such as use in the outpatient setting and use for decompensated heart failure and other indicated uses under its approved labeling, although we may not be successful in doing so.

We enrolled patients in studies for the C-Pulse System through February 2016 and continue to have reporting obligations related to two open studies for the C-Pulse.

Conducting clinical studies is a complex and uncertain process. Clinical trials are subject to extensive recordkeeping and reporting requirements. Any clinical trials must be conducted under the oversight of an institutional review board for the relevant clinical trial sites and must comply with FDA regulations, including, but

sales.

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not limited to, those relating to current good clinical practices. Each trial must obtain the written informed consent of patients in form and substance that complies with both FDA requirements and state and federal privacy and human subject protection regulations. The testing company, the FDA or the applicable institutional review board (IRB) may suspend a clinical trial at any time for various reasons, including a belief that the risks to study subjects outweigh the anticipated benefits. Similarly, in Europe, the clinical study must be approved by a local ethics committee and, in some cases, including studies with high-risk devices, by the ministry of health in the applicable country. Patients may experience serious adverse events or side effects during the study, which, whether or not related to our system, could cause the FDA or other regulatory authorities to investigate and potentially assess regulatory penalties. Any regulatory penalties assessed for failure to comply with the foregoing requirements could harm our business, results of operations, financial condition and prospects and cause us to seek additional funding.

Product defects, resulting in lawsuits for product liability, could harm our business, results of operations and financial condition.

The design, manufacture and marketing of medical devices involve certain inherent risks. Manufacturing or design defects, unanticipated use of a product or inadequate disclosure of risks relating to the use of the product can lead to injury or other adverse events. These events could lead to recalls or safety alerts relating to a product (either voluntary or required by the FDA or similar governmental authorities in other countries), and could result, in certain cases, in the removal of a product from the market. Any recall of our Aquadex FlexFlow system or any related components could result in significant costs, as well as negative publicity and damage to our reputation that could reduce demand for our products. Personal injuries relating to the use of our products could also result in product liability claims being brought against us. In some circumstances, such adverse events could also cause delays in new product approvals.

We may be held liable if any product we develop or commercialize causes injury or is found otherwise unsuitable during product testing, manufacturing, marketing, sale or consumer use. The safety studies we must perform and the regulatory approvals required to commercialize our products will not protect us from any such liability. We carry product liability insurance with a $5 million aggregate limit. However, if there are product liability claims against us, our insurance may be insufficient to cover the expense of defending against such claims, or may be insufficient to pay or settle such claims. Furthermore, we may be unable to obtain adequate product liability insurance coverage for commercial sales of any approved product. If such insurance is insufficient to protect us, our business, results of operations and financial condition will be harmed. If any product liability claim is made against us, our reputation and future sales will be damaged, even if we have adequate insurance coverage. Even if a product liability claim against us is without merit or if we are not found liable for any damages, a product liability claim could result in decreased interest in our registry studies, decreased demand for our system, if approved for commercialization, injury to our reputation, diversion of management’s attention from operating our business, withdrawal of study participants, significant costs of related litigation, loss of revenue or the inability to commercialize our products.

We may face significant risks associated with international operations, which could have a material adverse effect on our business, financial condition and results of operations.

We expect to market our products globally. Our international operations are subject to a number of risks, including the following: fluctuations in exchange rates of the United States dollar could adversely affect our results of operations, we may face difficulties in enforcing and collecting accounts receivable under some countries’ legal systems, local regulations may restrict our ability to sell our products, have our products serviced or conduct other operations, political instability could disrupt our operations, some governments and customers may have longer payment cycles, with resulting adverse effects on our cash flow, and some countries could impose additional taxes or restrict the import of our products. Any one or more of these factors could increase our costs, reduce our revenues, or disrupt our operations, which could have a material adverse effect on our business, financial condition and results of operations.

If we are not able to maintain sufficient quality controls, then the approval or clearance of our products by the European Union, the FDA or other relevant authorities could be withdrawn, delayed or denied and our sales and revenues will suffer.

Approval or clearance of our products could be withdrawn, delayed or denied by the European Union, the FDA and the relevant authorities of other countries if our manufacturing facilities do not comply with their respective manufacturing requirements. The European Union imposes requirements on quality control systems of

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manufacturers, which are inspected and certified on a periodic basis and may be subject to additional unannounced inspections. Failure to comply with these requirements could prevent us from marketing our products in the European Community. The FDA also imposes requirements through quality system requirements, or QSR, regulations, which include requirements for good manufacturing practices, or GMP. Failure to comply with these requirements could prevent us from obtaining FDA approval of our products and from marketing such products in the United States. Our manufacturing facilities have not been inspected and certified by a worldwide testing and certification agency (also referred to as a notified body) that performs conformity assessments to European Union requirements for medical devices. Nor have they been inspected by the FDA. A “notified body” is a group accredited and monitored by governmental agencies that inspects manufacturing facilities and quality control systems at regular intervals and is authorized to carry out unannounced inspections. We cannot be sure that our facilities or the processes we use will comply or continue to comply with their respective requirements on a timely basis or at all, which could delay or prevent our obtaining the approvals we need to market our products in the European Community and the United States.

To market our products in the European Community, the United States and other countries, where approved, manufacturers of such products must continue to comply or ensure compliance with the relevant manufacturing requirements. Although we cannot control the manufacturers of our products, if we choose to subcontract manufacturing to a contract manufacturer, we may need to expend time, resources and effort in product manufacturing and quality control to assist with their continued compliance with these requirements. If violations of applicable requirements are noted during periodic inspections of the manufacturing facilities of our manufacturers or we fail to address issues raised by the FDA in these inspections, then we may not be able to continue to market the products manufactured in such facilities and our revenues may be materially adversely affected.

If we violate any provisions of the Federal Food, Drug, and Cosmetic Act (“FDC Act”) or any other statutes or regulations, then we could be subject to enforcement actions by the FDA or other governmental agencies.

We face a significant compliance burden under the FDC Act and other applicable statutes and regulations which govern the testing, labeling, storage, record keeping, distribution, sale, marketing, advertising and promotion of our medically approved products.

If we violate the FDC Act or other regulatory requirements at any time during or after the product development and/or approval process, we could be subject to enforcement actions by the FDA or other agencies, including: fines, injunctions, civil penalties, recalls or seizures of products, total or partial suspension of the production of our products, withdrawal of any existing approvals or pre-market clearances of our products, refusal to approve or clear new applications or notices relating to our products, recommendations that we not be allowed to enter into government contracts and criminal prosecution. Any of the above could have a material adverse effect on our business, financial condition and results of operations.

We cannot assure you that our products will be safe or that there will not be serious injuries or product malfunctions. Further, we are required under applicable law to report any circumstances relating to our
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medically approved products that could result in deaths or serious injuries. These circumstances could trigger recalls, class action lawsuits and other events that could cause us to incur expenses and may also limit our ability to generate revenues from such products.

We cannot assure you that our products will prove to be safe or that there will not be serious injuries or product malfunctions, which could trigger recalls, class action lawsuits and other events that could cause us to incur significant expenses, limit our ability to market our products and generate revenues from such products or cause us reputational harm.

Under the FDC Act, we are required to submit medical device reports, or MDRs, to the FDA to report device-related deaths, serious injuries and malfunctions of medically approved products that could result in death or serious injury if they were to recur. Depending on their significance, MDRs could trigger events that could cause us to incur expenses and may also limit our ability to generate revenues from such products, such as the following: information contained in the MDRs could trigger FDA regulatory actions such as inspections, recalls and patient/physician notifications; because the reports are publicly available, MDRs could become the basis for private lawsuits, including class actions; and if we fail to submit a required MDR to the FDA, the FDA could take enforcement action against us.

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If any of these events occur, then we could incur significant expenses and it could become more difficult for us to market and sell our products and to generate revenues from sales. Other countries may impose analogous reporting requirements that could cause us to incur expenses and may also limit our ability to generate revenues from sales of our products.

We face significant uncertainty in the industry due to government healthcare reform.

The Patient Protection and Affordable Care Act, as amended, (the “Affordable Care Act”) as well as other healthcare reform, including possible repeal of the Affordable Care Act, may have a significant impact on our business. The impact of the Affordable Care Act on the health care industry is extensive and includes, among other things, the federal government assuming a larger role in the health care system, expanding healthcare coverage of United States citizens and mandating basic healthcare benefits. The Affordable Care Act contains many provisions designed to generate the revenues necessary to fund the coverage expansions and to reduce costs of Medicare and Medicaid, including imposing a 2.3% excise tax on domestic sales of many medical devices by manufacturers that began in 2013. A moratorium was placed on the medical device excise tax in 2016 and 2017. If the excise tax is not repealed, we will be subject to this or any future excise tax on our sales of certain medical devices in the U.S. following December 31, 2017.

The Affordable Care Act includes a Hospital Readmission Reduction program and is designed to reduce payments to hospitals with excess heart failure readmissions, among other conditions. The penalty to hospitals can be significant, as much as 3% of total Medicare reimbursement. We believe the Aquadex FlexFlow system may offer hospitals an economic benefit for using the device on a regular basis for in-patient or out-patient usage to avoid readmissions for heart failure; however, if the Hospital Readmission Reduction program is repealed, hospitals may not be as inclined to take measures to reduce readmissions.

In addition, any healthcare reforms enacted in the future may, like the Affordable Care Act, be phased in over a number of years, but if enacted, could reduce our revenue, increase our costs, or require us to revise the ways in which we conduct business or put us at risk for loss of business. In addition, our results of operations, financial position and cash flows could be materially adversely affected by changes under the Affordable Care Act and changes under any federal or state legislation adopted in the future.

Moreover, the Physician Payment Sunshine Act (the “Sunshine Act”), which was enacted by Congress as part of the Patient Protection and Affordable Care Act on March 23, 2010, requires medical device companies to track and publicly report, with limited exceptions, all payments and transfers of value to physicians and teaching hospitals in the U.S. Implementing regulations for these tracking and reporting obligations were finalized in 2013, and companies are now required to track payments made since August 1, 2013. If we fail to comply with the data collection and reporting obligations imposed by the Sunshine Act, we may be subject to substantial civil monetary penalties.

We are subject, directly or indirectly, to United States federal and state healthcare fraud and abuse and false claims laws and regulations. Prosecutions under such laws have increased in recent years and we may become subject to such litigation. If we are unable to, or have not fully complied with such laws, we could face substantial penalties.

Our operations are directly, or indirectly through customers,

Failure to comply with anti-bribery, anti-corruption, and anti-money laundering laws could subject us to various state and federal fraud and abuse laws, including, without limitation, the federal Anti-Kickback Statute, the stark law and federal False Claims Act. These laws may impact, among other things, our sales, marketing and education programs.

The federal Anti-Kickback Statute prohibits persons from knowingly and willfully soliciting, offering, receiving or providing remuneration, directly or indirectly, in exchange for or to induce either the referral of an individual, or the furnishing or arranging for a good or service, for which payment may be made under a federal healthcare program such as the Medicare and Medicaid programs. Several courts have interpreted the statute’s intent requirement to mean that if any one purpose of an arrangement involving remuneration is to induce referrals of federal healthcare covered business, the statute has been violated. The Anti-Kickback Statute is broad and, despite a series of narrow safe harbors, prohibits many arrangements and practices that are lawful in businesses outside of the healthcare industry. Penalties for violations of the federal Anti-Kickback Statute include criminal penalties and civil sanctions such as fines, imprisonment and possible exclusion from Medicare, Medicaid and other federal healthcare programs. Many states have also adopted laws similar to the federal Anti-Kickback Statute, some of which apply to the referral of patients for healthcare items or services reimbursed by any source, not only the Medicare and Medicaid programs. The physician self-referral laws, commonly referred to as the Stark law is a strict liability statute that generally

adverse consequences.

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prohibits physicians from referring Medicare patients to providers of “designated health services,” with whom the physician or the physician’s immediate family member has an ownership interest or compensation arrangement, unless an applicable exception applies. Moreover, many states have adopted or are considering adopting similar laws, some of which extend beyond the scope of the Stark law to prohibit the payment or receipt of remuneration for the prohibited referral of patients for designated healthcare services and physician self-referrals, regardless of the source of the payment for the patient’s care. If it is determined that any of the relationships we may have with physicians violate the Stark law or similar statutes, we could become subject to civil and criminal penalties. The imposition of any such penalties could harm our business.

The federal False Claims Act prohibits persons from knowingly filing, or causing to be filed, a false claim to, or the knowing use of false statements to obtain payment from the federal government. Suits filed under the False Claims Act, known as “qui tam” actions, can be brought by any individual on behalf of the government and such individuals, commonly known as “whistleblowers,” may share in any amounts paid by the entity to the government in fines or settlement. The frequency of filing qui tam actions has increased significantly in recent years, causing greater numbers of medical device, pharmaceutical and healthcare companies to have to defend a False Claim Act action. When an entity is determined to have violated the federal False Claims Act, it may be required to pay up to three times the actual damages sustained by the government, plus civil penalties for each separate false claim. Various states have also enacted laws modeled after the federal False Claims Act.

We are unable to predict whether we could be subject to actions under any of these laws, or the impact of such actions. If we are found to be in violation of any of the laws described above or other applicable state and federal fraud and abuse laws, we may be subject to penalties, including civil and criminal penalties, damages, fines, exclusion from government healthcare reimbursement programs and the curtailment or restructuring of our operations.

If we are required to write down intangible assets or goodwill from our acquisition of the Aquadex Business, our financial condition and results would be negatively affected.

When we acquired the Aquadex Business, a substantial portion of the purchase price of the acquisition was allocated to identifiable intangible assets and goodwill. As of September 30, 2017, our identifiable intangible assets, including customer relationships, developed technology, and trademarks and tradenames, were $4.6 million, net of accumulated amortization of $0.8 million, represented 54.7% of our total stockholders’ equity. Intangible assets are being amortized over a period of seven years. In addition to identifiable intangible assets, we have recorded $189,000 of goodwill as of September 30, 2017.

We review our definite-lived intangible assets for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable through the estimated undiscounted future cash flows derived from such assets. In cases where the carrying value exceeds the undiscounted cash flows, the carrying value is written down to its fair value, using a discounted cash flow analysis. We evaluate goodwill for impairment annually on November 1st of each calendar year, or to the extent events or conditions indicate a risk of possible impairment during the interim periods prior to its annual impairment test.

If we determine identifiable intangible assets or goodwill are impaired, we will be required to write down these assets. Any write down of identifiable intangible assets or goodwill would have a negative effect on our consolidated financial statements.

If we acquire other businesses, products or technologies, we could incur additional impairment charges and will be subject to risks that could hurt our business.

We may pursue acquisitions to obtain complementary businesses, products or technologies. Any such acquisition may not produce the revenues, earnings or business synergies that we anticipate and an acquired business, product or technology might not perform as we expect. Our management could spend a significant amount of time, effort and money in identifying, pursuing and completing the acquisition. If we complete an acquisition, we may encounter significant difficulties and incur substantial expenses in integrating the operations and personnel of the acquired businesses, products or technologies into our operations. In particular, we may lose the services of key employees and we may make changes in management that impair the acquired business’s relationships with employees, vendors and customers. Additionally, we may acquire development-stage companies that are not yet profitable and which require continued investment, which could decrease our future earnings or increase our futures losses.

Any of these outcomes could prevent us from realizing the anticipated benefits of an acquisition. To pay for an acquisition, we might use stock or cash. Alternatively, we might borrow money from a bank or other lender. If we

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use stock, our stockholders would experience dilution of their ownership interests. If we use cash or debt financing, our financial liquidity would be reduced. As a result of a potential acquisition, we may be required to capitalize a significant amount of intangibles, including goodwill, which may lead to significant amortization or write-off charges if these assets were later impaired. These amortization charges and write-offs could decrease our future earnings or increase our future losses.

Risks Related to Our Intellectual Property

We may not be able to protect our intellectual property rights effectively, which could have an adverse effect on our business, financial condition or results of operations.

Our success depends in part on our ability to obtain and maintain protection in the United States and other countries of the intellectual property relating to or incorporated into our Aquadex FlexFlow system and related components. On August 5, 2016, upon closing of our acquisition of the Aquadex Business, we entered into a patent license agreement with Baxter pursuant to which we obtained, for no additional consideration, a world-wide license to 49 exclusively licensed and 9 non-exclusively licensed patents used in connection with the Aquadex FlexFlow system to make, have made, use, sell, offer for sale and import, the Aquadex FlexFlow system in the “field of use.” The “field of use” is defined as system and apparatus only capable of performing isolated ultrafiltration for treatment of congestive heart failure, and methods to the extent used therein (excluding system, apparatus, or methods performing any kind of renal therapy or dialysis and/or any system capable of providing substitution fluid). The license is exclusive, with respect to some patents, and non-exclusive, with respect to other patents. Under the patent license agreement, Baxter has agreed to use commercially reasonable efforts to continue maintenance of seven “required maintenance patents,” and we have agreed to reimburse Baxter for all fees, costs, and expenses (internal or external) incurred by Baxter in connection with such continued maintenance. The rights granted to us under the patent license agreement will automatically revert to Baxter in the event we cease operation of the Aquadex Business or we file for, or have filed against us, or otherwise undertake any bankruptcy, reorganization, insolvency, moratorium, or other similar proceeding. For two years following the closing, the patent license agreement is not assignable by us (including in connection with a change of control) without Baxter’s prior written consent. We estimate that the patents licensed from Baxter will expire between approximately 2020 and 2025.

In addition, as of September 30, 2017, we owned 40 issued patents and 5 pending patent applications in the United States and in foreign jurisdictions related to our C-Pulse System and had 2 pending applications for neuromodulation. We estimate that most of our currently issued U.S. patents will expire between approximately 2021 and 2027. Given the strategic refocus away from C-Pulse and towards the Aquadex FlexFlow system, we have chosen to limit the maintenance of issued C-Pulse related patents to those innovations that are of the highest value. Further, we have elected to emphasize a few of the most critical jurisdictions rather than maintain the earlier approach that involved multiple countries. Our pending and future patent applications may not issue as patents or, if issued, may not issue in a form that will provide us any financial return. Even if issued, existing or future patents may be challenged, narrowed, invalidated or circumvented, which could limit our ability to obtain commercial benefits from them. Changes in patent laws or their interpretation in the United States and other countries could also diminish the value of our intellectual property or narrow the scope of our patent protection. In addition, the legal systems of certain countries do not favor the aggressive enforcement of patents, and the laws of foreign countries may not protect our rights to the same extent as the laws of the United States. In order to preserve and enforce our patent and other intellectual property rights, we may need to make claims or file lawsuits against third parties. This can entail significant costs to us and divert our management’s attention from our business.

Intellectual property litigation could be costly and disruptive to us.

In recent years, there has been significant litigation involving intellectual property rights. From time to time, third parties may assert patent, copyright, trademark and other intellectual property rights to technologies used in our business. Any claims, with or without merit, could be time-consuming, result in costly litigation, divert the efforts of our technical and management personnel or require us to pay substantial damages. If we are unsuccessful in defending ourselves against these types of claims, we may be required to do one or more of the following:

halt use of our Aquadex FlexFlow products;
attempt to obtain a license to sell or use the relevant technology or substitute technology, which license may not be available on reasonable terms or at all; or
redesign our system.

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In the event a claim against us were successful and we could not obtain a license to the relevant technology on acceptable terms or license a substitute technology or redesign our system to avoid infringement, our business, results of operations and financial condition would be significantly harmed.

If we were unable to protect the confidentiality of our proprietary information and know-how, the value of our technology and system could be adversely affected.

In addition to patented technology, we rely on our unpatented proprietary technology, trade secrets, processes and know-how. We generally seek to protect this information by confidentiality agreements with our employees, consultants, scientific advisors and third parties. These agreements may be breached, and we may not have adequate remedies for any such breach. In addition, our trade secrets may otherwise become known or be independently developed by competitors. To the extent that our employees, consultants or contractors use intellectual property owned by others in their work for us, disputes may arise as to the rights in related or resulting know-how and inventions.

Our products could infringe patent rights of others, which may require costly litigation and, if we are not successful, could cause us to pay substantial damages or limit our ability to commercialize our products.

Our commercial success depends on our ability to increase adoption of the Aquadex FlexFlow system without infringing the patents and other proprietary rights of third parties. As our industry expands and more patents are issued, the risk increases that there may be patents issued to third parties that relate to our system and technologies of which we are not aware or that we must challenge to continue our operations as currently contemplated. Our system may infringe or may be alleged to infringe these patents.

In addition, some patent applications in the United States may be maintained in secrecy until the patents are issued because patent applications in the United States and many foreign jurisdictions are typically not published until 18 months after filing, and because publications in the scientific literature often lag behind actual discoveries, we cannot be certain that others have not filed patent applications for technology covered by our issued patents or our pending applications or that we were the first to invent the technology. Another party may have filed, and may in the future file, patent applications covering our system or technology similar to ours. Any such patent application may have priority over our patent applications or patents, which could further require us to obtain rights to issued patents covering such technologies. If another party has filed a U.S. patent application on inventions similar to ours, we may have to participate in an interference or derivation proceeding declared by the U.S. Patent and Trademark Office to determine priority of invention in the United States. The costs of these proceedings could be substantial, and it is possible that such efforts would be unsuccessful if the other party had independently arrived at the same or similar invention prior to our own invention, resulting in a loss of our U.S. patent position with respect to such inventions.

We may be subject to claims that our employees have wrongfully used or disclosed alleged trade secrets of their former employers.

As is common in our industry, we employ individuals who were previously employed at other medical device companies, including our competitors or potential competitors. Although no claims against us are currently pending, we may be subject to claims that these employees, or we, have used or disclosed trade secrets or other proprietary information of their former employers. Litigation may be necessary to defend against these claims. Even if we are successful in defending against these claims, litigation could result in substantial costs and be a distraction to management.

Security breaches, loss of data and other disruptions could compromise sensitive information related to our business or prevent us from accessing critical information and expose us to liability, which could adversely affect our business and our reputation.

In the ordinary course of our business, we collect and store sensitive data, including legally protected health information, personally identifiable information, intellectual property and proprietary business information owned or controlled by ourselves or others. At times we may have access to limited amounts of protected health information as part of other healthcare providers’ provision of treatment to patients with our medical devices. We manage and maintain our applications and data utilizing on-site systems. These applications and data encompass a wide variety of business-critical information including research and development information, commercial information, and business and financial information. We face four primary risks relative to protecting this critical information, including: loss of access risk; inappropriate disclosure risk; inappropriate modification risk; and the risk of our being unable to adequately monitor our controls over the first three risks.

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The secure processing, storage, maintenance,

RISK FACTORS
An investment in our securities has a high degree of risk. Before you invest you should carefully consider the risks and transmissionuncertainties described below, the other information in this prospectus, and under the caption “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2021 and our Quarterly Reports on Form 10-Q for the quarterly periods ended March 31, 2022 and June 30, 2022, each of this critical informationwhich is vital to our operations and business strategy. Although we take measures to protect sensitive information from unauthorized access or disclosure, our information technology and infrastructure may be vulnerable to attacksincorporated by hackers or viruses or breached due to employee error, malfeasance, or other disruptions. Any such breach or interruption could compromise our networksreference and the other information stored therein this prospectus. Any of the risks and uncertainties set forth herein could be accessed by unauthorized parties, publicly disclosed, lost, or stolen. Any such access, disclosure or other loss of information could result in legal claims or proceedings, liability under lawsmaterially and regulations that protect the privacy of personal information and regulatory penalties. To the extent that we may engage in activities regulated by the Health Insurance Portability and Accountability Act (HIPAA) and the Health Information Technology for Clinical and Economic Health Act (HITECH) we may have additional regulatory and reporting obligations. Although we believe we have implemented security measures, there is no guarantee we can protect our systems and data from unauthorized access, loss or dissemination that could also disrupt our operations, including our ability to conduct our analyses, conduct research and development activities, collect, process, and prepare company financial information, provide information about our products and other patient and physician education and outreach efforts through our website, manage the administrative aspects of our business, and damage our reputation, any of which could adversely affect our business.

In addition, the interpretationbusiness, results of operations and application of consumer, health-related,financial condition, which in turn could materially and data protection laws in the United States, Europe and elsewhere are often uncertain, contradictory, and in flux. It is possible that these laws may be interpreted and applied in a manner that is inconsistent with our practices. If so, this could result in government-imposed fines or orders requiring that we change our practices, which could adversely affect the trading price or value of our business. In addition, these privacy regulations may differ from countrysecurities. Additional risks not currently known to country, and may varyus or which we consider immaterial based on whether testing is performed in the United Statesinformation currently available to us may also materially adversely affect us. As a result, you could lose all or in the local country. Complying with these various laws could cause us to incur substantial costs or require us to change our business practices and compliance procedures in a manner adverse to our business.

part of your investment.

Risks Related to Our Common Stock

The reverse split of our common stock could decrease our total market capitalization and increase the volatility of our stock price.

We effected 1-for-20 reverse split of our issued and outstanding shares of common stock as of 5:00 p.m. Eastern Time on October 12, 2017, and our common stock began trading on a split-adjusted basis on The Nasdaq Capital Market on October 13, 2017. There can be no assurance that the total market capitalization of our common stock after the reverse stock split will be equal to or greater than the total market capitalization before the reverse stock split or that the per share market price of our common stock following the reverse stock split will increase in proportion to the reduction in the number of shares of common stock outstanding before the reverse stock split. Furthermore, a decline in the market price of our common stock after the reverse stock split may result in a greater percentage decline than would occur in the absence of a reverse stock split, and the liquidity of our common stock could be adversely affected following such a reverse stock split.

We previously effected a 1-for-30 reverse split of our issued and outstanding shares of common stock as of January 12, 2017. Our total market capitalization following such reverse split was substantially lower than our total market capitalization prior to such split, and the per share market price of our common stock following such reverse stock split, after initially increasing, eventually decreased such that the market price following the split did not increase in proportion to the reduction in the number of shares of common stock outstanding before the reverse stock split.

Nasdaq may delist our common stock from its exchange which could limit your ability to make transactions in our securities and subject us to additional trading restrictions.

On June 1, 2017,May 31, 2022, we received a notificationthe Notice from The NASDAQ Stock Market LLC (“Nasdaq”)the Staff of Nasdaq informing us that because the closing bid price for our common stock listed on Nasdaq was below $1.00 for 30 consecutive trading days, we were no longernot in compliance with the minimum bid price requirement,Minimum Bid Price Requirement for continued listing on the Nasdaq Capital Market, as set forth in Nasdaq Marketplace Rule 5550(a)(2).
In accordance with Nasdaq Marketplace Rule 5810(c)(3)(A), the bid priceCompany has a period of our shares of common stock closed below the minimum $1.00 per share for the 30 consecutive business days prior to the date of the notice. Nasdaq also notified us that we were provided 180 calendar days from May 31, 2022, or until November 28, 2017,2022, to regain compliance with the minimumMinimum Bid Price Requirement. If at any time before November 28, 2022, the closing bid price requirement.

Atof the Company’s common stock closes at or above $1.00 per share for a special meetingminimum of 10 consecutive trading days (which number days may be extended by Nasdaq), Nasdaq will provide written notification that the Company has achieved compliance with the Minimum Bid Price Requirement, and the matter would be resolved.

The Notice also disclosed that in the event the Company does not regain compliance with the Rule by November 28, 2022, the Company may be eligible for additional time. To qualify for additional time, the Company would be required to meet the continued listing requirement for market value of publicly held shares and all other initial listing standards for Nasdaq, with the exception of the bid price requirement, and would need to provide written notice of our stockholders on October 10, 2017, our stockholders approved, among other things,intention to cure the deficiency during the second compliance period, by effecting a reverse stock split, and following such special meeting, our Board of Directors approved a 1-for-20 reverse split ofif necessary. If the Company meets these requirements, Nasdaq will inform the Company that it has been granted an additional 180 calendar days. However, if it appears to the Staff that the Company will not be able to cure the deficiency, or if the Company is otherwise not eligible, Nasdaq will provide notice that the Company’s issued and outstanding shares of common stock. securities will be subject to delisting.
The reverse stock split became effective as of 5:00 p.m. Eastern Time on October 12, 2017, andCompany intends to continue actively monitoring the closing bid price for the Company’s common stock began trading on a split-adjusted

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basis on The Nasdaq Capital Market on October 13, 2017. On October 27, 2017, we received formal notice from Nasdaq that we had regainedbetween now and November 28, 2022, and it will consider available options to resolve the deficiency and regain compliance with the minimum $1.00 bid price requirement, as set forth inMinimum Bid Price Requirement. If the Company does not regain compliance within the allotted compliance period, including any extensions that may be granted by Nasdaq, Listing Rule 5550(a)(2), andNasdaq will provide notice that the matter is now closed.

If, in the future, it appears to the Nasdaq staff that we will not meet the minimum bid price requirement or any other listing standard, ourCompany’s common stock maywill be subject to delisting fromdelisting. The Company would then be entitled to appeal that determination to a Nasdaq hearings panel. There can be no assurance that the Company will regain compliance with the Minimum Bid Price Requirement during the 180-day compliance period, secure a second period of 180 calendar days to regain compliance, or maintain compliance with the other Nasdaq market. listing requirements.

If our common stock is delisted Baxter, pursuantfrom Nasdaq, our ability to raise capital through public offerings of our securities and to finance our operations could be adversely affected. We also believe that delisting would likely result in decreased liquidity and/or increased volatility in our common stock and could harm our business and future prospects. In addition, we believe that, if our common stock is delisted, our stockholders would likely find it more difficult to obtain accurate quotations as to the asset purchase agreement for the Aquadex Business, has the right to require us to repurchase, in cash, all or partprice of the common stock held by Baxterand it may be more difficult for stockholders to buy or sell our common stock at a price equal to their faircompetitive market value, as determined by a third-party appraiser. In addition,prices, or at all.
If our common stock is delisted, our common stock would likely then trade only in the over-the-counter market. If our common stock were to trade on the over-the-counter market, selling our common stock could be more difficult because smaller quantities of shares would likely be bought and sold, and transactions could be delayed, and we could face significant material adverse consequences, including:

a limited availability of market
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quotations for our securities;
reduced liquidity with respect to our securities;
a determination that our shares are a “penny stock,” which will require brokers trading in our securities to adhere to more stringent rules, possibly resulting in a reduced level of trading activity in the secondary trading market for our securities;
a reduced amount of news and analyst coverage for our Company; and
a decreased ability to issue additional securities or obtain additional financing in the future.

These factors could result in lower prices and larger spreads in the bid and ask prices for our common stock and would substantially impair our ability to raise additional funds and could result in a loss of institutional investor interest and fewer development opportunities for us.

In addition to the foregoing, if our common stock is delisted from NASDAQNasdaq and it trades on the over-the-counter market, the application of the “penny stock” rules could adversely affect the market price of our common stock and increase the transaction costs to sell those shares. The SEC has adopted regulations which generally define a “penny stock” as an equity security that has a market price of less than $5.00 per share, subject to specific exemptions. The closing price of our common stock on October 31, 2017 was $6.99. If our common stock is delisted from NASDAQNasdaq and it trades on the over-the-counter market at a price of less than $5.00 per share, our common stock would be considered a penny stock. The SEC’s penny stock rules require a broker-dealer, before a transaction in a penny stock not otherwise exempt from the rules, to deliver a standardized risk disclosure document that provides information about penny stocks and the risks in the penny stock market. The broker-dealer must also provide the customer with current bid and offer quotations for the penny stock, the compensation of the broker-dealer and the salesperson in the transaction, and monthly account statements showing the market value of each penny stock held in the customer’s account. In addition, the penny stock rules generally require that before a transaction in a penny stock occurs, the broker-dealer must make a special written determination that the penny stock is a suitable investment for the purchaser and receive the purchaser’s agreement to the transaction. If applicable in the future, these rules may restrict the ability of brokers-dealers to sell our common stock and may affect the ability of investors to sell their shares, until our common stock no longer is considered a penny stock.

The

Sales of a substantial number of shares of common stock underlying our outstanding warrants is significant in relation to our currently outstanding common stock and their exercise and sale would cause dilution to the existing holders of our common stock and to investorsby our stockholders in this offering, andthe public market could cause downward pressure on the marketour stock price for our common stock.

As of October 31, 2017, we have warrants to purchase 496,468 shares of common stock outstanding, with exercise prices ranging from $22.00 to $3,132.00, with a weighted-average exercise price of $26.10. fall.

The number of shares of common stock issuable upon conversion of our outstanding preferred stock and exercise of outstanding warrants is significant in relation to the number of shares of our common stock currently outstanding.
As of September 15, 2022, we have warrants to purchase 1,630,627 shares of common stock outstanding, with exercise prices ranging from $2.50 to $890.40 with a weighted-average exercise price of $25.47.
As of September 15, 2022, there were 127 shares of Series F Preferred Stock outstanding, convertible into 50,800 shares of common stock. The certificate of designation for our Series F Preferred Stock contains an anti-dilution provision, which provision requires the lowering of the applicable conversion price, as then in effect, to the purchase price per share of common stock or common stock equivalents issued in the future. If the effective price per share on a common-stock equivalent basis in a future equity offering is lower than the then-current conversion price of the Series F Convertible Preferred Stock, then such conversion price shall be reduced to such lower price and additional shares of common stock will be issuable upon the conversion of the of the Series F Convertible Preferred Stock. To the extent the outstanding shares of Series F Convertible Preferred Stock become exercisable for additional shares of common stock, holders of our common stock will experience further dilution.
If any security holder determines to sell a substantial number of shares into the market at any given time, there may not be sufficient demand in the market to purchase the shares without a decline in the market price for our common stock. Moreover, continuous sales into the market of a number of shares in excess of the typical trading volume for our common stock or even the availability of such a large number of shares, could depress the trading market for our common stock over an extended period of time.

Sales of a substantial number of shares of our common stock in the public market or the perception that these sales might occur could significantly reduce the market price of our common stock and impair our ability to raise adequate capital through the sale of additional equity securities. We are unable to predict the effect that such sales may have on the prevailing market price of our common stock. As of September 15, 2022, we have

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outstanding warrants to purchase an aggregate of approximately 1,630,627 shares of our common stock, and options to purchase an aggregate of approximately 1,200,259 shares of our common stock, which, if exercised, may further increase the number of shares of our common stock outstanding and the number of shares eligible for resale in the public market.
The rights of holders of our capital stock will be subject to, and could be adversely affected by, the rights any of holders of our outstanding preferred stock and stock that may be issued in the future.

Our board of directors has authority, without further stockholder approval, to issue additional shares of preferred stock with such rights, preferences and privileges as our board of directors may determine. These rights, preferences and privileges may include dividend rights, conversion rights, voting rights and liquidation rights that may be greater than the rights of our common stock.

The rights, preferences

Our board of directors has previously approved, pursuant to this authority, the issuance of preferred stock, and privilegeswe have 127 shares of the Series F Preferred Stock to be issued in this offering are described under “Descriptionoutstanding as of Securities—Description of Capital Stock—Preferred Stock—Series F Preferred Stock” herein. As described therein, uponSeptember 15, 2022. Upon liquidation, dissolution or winding-up of the Company, the holders of our Series F Preferred Stock have the right to receive, out of the assets, whether capital or surplus, of the Company an amount equal to the par value, plus any accrued and unpaid dividends thereon, for each share of such preferred stock held by such holder before any distribution or payment shall be made to the holders of our common stock, and, following such payment, such holders are entitled to participate on an as-converted-to-commonreceive the same amount that a holder of common stock basiswould receive if such preferred stock was fully converted, pari passu with all the holders of the common stock in any distribution of assets of the Company.

stock.

Our board of directors may issue additional series of preferred stock in the future pursuant to this authority.stock. As a result, the rights of holders of our capital stock will be subject to, and could be adversely affected by, the rights of holders of any stock that may be issued in the future.
Our business could be negatively affected as a result of actions of activist stockholders, and such activism could impact the trading value of our securities.
Stockholders may, from time to time, engage in proxy solicitations or advance stockholder proposals, or otherwise attempt to effect changes and assert influence on our board of directors and management. Activist campaigns that contest or conflict with our strategic direction or seek changes in the composition of our board of directors could have an adverse effect on our operating results and financial condition. A proxy contest would require us to incur significant legal and advisory fees, proxy solicitation expenses and administrative and associated costs and require significant time and attention by our board of directors and management, diverting their attention from the pursuit of our business strategy. Any perceived uncertainties as to our future direction and control, our ability to execute on our strategy, or changes to the composition of our board of directors or senior management team arising from a proxy contest could lead to the perception of a change in the direction of our business or instability which may result in the loss of potential business opportunities, make it more difficult to pursue our strategic initiatives, or limit our ability to attract and retain qualified personnel and business partners, any of which could adversely affect our business and operating results. If individuals are ultimately elected to our board of directors with a specific agenda, it may adversely affect our ability to effectively implement our business strategy and create additional value for our stockholders. We may choose to initiate, or may become subject to, litigation as a result of the proxy contest or matters arising from the proxy contest, which would serve as a further distraction to our board of directors and management and would require us to incur significant additional costs. In addition, actions such as those described above could cause significant fluctuations in our stock price based upon temporary or speculative market perceptions or other factors that do not necessarily reflect the underlying fundamentals and prospects of our business.
There may be future sales of our securities or other dilution of our equity, which may adversely affect the market price of our common stock.
We are generally not restricted from issuing additional common stock, including any securities that are convertible into or exchangeable for, or that represent the right to receive, common stock. The market price of our common stock could decline as a result of sales of common stock or securities that are convertible into or exchangeable for, or that represent the right to receive, common stock after this offering or the perception that such sales could occur.
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We have a large number of authorized but unissued shares of stock, which could negatively impact a potential investor if they purchased our common stock.

We

On October 12, 2020, we effected 1-for-20a 1-for-30 reverse split of our issued and outstanding sharescommon stock. This reverse stock split did not change the par value of common stock as of 5:00 p.m. Eastern Time on October 12, 2017, and our common stock began trading on a split-adjusted basis on The Nasdaq Capital Market on October 13, 2017.

or the number of common or preferred shares authorized by our Certificate of Incorporation. Because the number of authorized shares of our common stock was not reduced proportionately, the reverse stock split increased our board of directors’ ability to issue authorized and unissued shares without further stockholder action. As of the date of this prospectus,September 15, 2022, our certificate of incorporation provides for 100,000,000 shares of authorized common stock and 40,000,000 shares of authorized preferred stock. Asstock, 30,000 of October 31, 2017,which are designated Series A Junior Participating Preferred Stock, 127 of which are designated Series F Preferred Stock, and we had 625,791have 10,537,606 shares of common stock outstanding, 533,6332,881,686 shares reserved for issuance upon the conversion, exercise or vesting of outstanding preferred stock, warrants and options, and restricted stock units, and 57,2841,921,713 shares of common stock reserved for future grant under the Company’s equity incentive plans.

With respect to authorized but unissued and unreserved shares, we could also use such shares to oppose a hostile takeover attempt or delay or prevent changes in control or changes in or removal of management. The issuance of additional shares of common stock or securities convertible into common stock may have a dilutive effect on earnings per share and relative voting power and may cause a decline in the trading price of our common stock. We could use the shares that are available for future issuance in dilutive equity financing transactions, or to oppose a hostile takeover attempt or delay or prevent changes in control or changes in or removal of management, including transactions that are favored by a majority of the stockholders or in which the stockholders might otherwise receive a premium for their shares over then-current market prices or benefit in some other manner.

The

A more active, liquid trading market for our common stock may not develop, and the price of our common stock may fluctuate significantly, and this may make it difficult for you to resellsignificantly.
Historically, the common stock you want or at prices you find attractive.

Themarket price of our common stock constantly changes. Thehas fluctuated over a wide range. There has been relatively limited trading volume in the market for our common stock, and a more active, liquid public trading market may not develop or may not be sustained. Limited liquidity in the trading market for our common stock may adversely affect a stockholder’s ability to sell its shares of common stock at the time it wishes to sell them or at a price that it considers acceptable. If a more active, liquid public trading market does not develop we may be limited in our ability to raise capital by selling shares of common stock and our ability to acquire other companies or assets by using shares of our common stock as consideration. In addition, if there is a thin trading market or “float” for our stock, the market price for our common stock may fluctuate significantly more than the stock market as a whole. Without a large float, our common stock would be less liquid than the stock of companies with broader public ownership and, as a result, the trading prices of our common stock may be more volatile and it would be harder for a stockholder to liquidate any investment in our common stock. Furthermore, the stock market is subject to significant price and volume fluctuations, and the price of our common stock could fluctuate significantly for many reasons, includingwidely in response to several factors, including:

our quarterly or annual operating results;
changes in our earnings estimates;
investment recommendations by securities analysts following our business or our industry;
additions or departures of key personnel;
changes in the following:

business, earnings estimates or market perceptions of our competitors;
our failure to achieve operating results consistent with securities analysts’ projections;
future announcements concerning us, including our clinical and product development strategy, or our competitors;
regulatory developments, disclosure regarding completed, ongoing or future clinical studies and enforcement actions bearing on advertising, marketing or sales;
reports and recommendations of analysts and whether or not we meet the milestones and metrics set forth in such reports;
introduction of new products;
acquisition or loss of significant manufacturers, distributors or suppliers or an inability to obtain sufficient quantities of materials needed to manufacture our system;

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quarterly variations in operating results, which we have experienced in the past and expect to experience in the future;
business acquisitions or divestitures;
changes in governmental or third-party reimbursement practices;
fluctuations of investor interest in the medical device sector;
changes in industry, general market or economic conditions; and
announcements of legislative or regulatory changes.
fluctuations in the economy, world political events or generalThe stock market conditions.

In addition, stock markets in general, and the market for shares of health care stocks in particular, havehas experienced extreme price and volume fluctuations in recent years fluctuations that frequently have been unrelated tosignificantly affected the operating performancequoted prices of the affected companies. These broad market fluctuations may adversely affectsecurities of many companies, including companies in the market price of our common stock.health care industry. The marketchanges often appear to occur without regard to specific operating performance. The price of our common stock could decline below its current pricefluctuate based upon factors that have little or nothing to do with us and the market price ofthese fluctuations could materially reduce our shares may fluctuate significantly in the future. These fluctuations may be unrelated to our performance. We expect that the market price of our common stock will continue to fluctuate.

price.

Our ability to use U.S. net operating loss carryforwards or Australian tax losses might be limited.

As of December 31, 2016,2021, we had U.S. net operating loss (“NOL”) carryforwards of approximately $110.6$186.4 million for U.S. Federalfederal income tax purposes, whichpurposes. Approximately $120.1 million of NOL carryforwards will expire from 2024 through 2034. To2037. Pursuant to the extent theseTax Cuts and Jobs Act of 2017, the NOL carryforwards are available, we intend to use them to reduce any corporate income tax liability associated with our operations that we might havegenerated in 2018 through 2020 totaling approximately $66.3 million do not expire. The expiration of state NOL carryforwards will vary by jurisdiction. In addition, future utilization of NOL carryforwards in the future.U.S. may be subject to certain limitations under Section 382 of the U.S.Internal Revenue Code. As of December 31, 2021, the Company no longer had tax loss carryforwards in the Commonwealth of Australia due to the dissolution of the subsidiary in November 2020.
We believe the Company may have experienced additional ownership changes under Section 382 of the Internal Revenue Code of 1986, as amended, generally imposes an annual limitation onin the amount ofcurrent and earlier years further limiting the NOL carryforwards that mightmay be used to offset taxable income whenutilized. We have not yet completed a corporation has undergone significant changes in stock ownership.formal Section 382 analysis. As a result, prior or future changes in ownership, including due to this offering, could put limitations on the availability of our NOL carryforwards. In addition, our ability to utilize the current NOL carryforwards might be further limited by future issuances of our common stock.

As of December 31, 2016, we had tax losses in the Commonwealth of Australia of approximately AU$49.0 million. Continuing utilization of carryforward tax losses in Australia may also be affected by the issuance of our common stock. This is because one test for carrying forward tax losses in Australia from year to year requires continuity of ultimate ownership (subject to the relevant tests in Australian tax law) of more than 50% between the loss year and the income year in which the loss is claimed.

To the extent use of our NOL carryforwards or tax losses is limited, our income could be subject to corporate income tax earlier than it would if we were able to use NOL carryforwards and tax losses, which could result in lower profits.

We do not intend to pay cash dividends on our common stock in the foreseeable future.

We have never declared or paid any cash dividends on our common stock, and we currently do not anticipate paying any cash dividends in the foreseeable future. We intend to retain any earnings to finance the development and expansion of our products and business. Accordingly, our stockholders will not realize a return on their investments unless the trading price of our common stock appreciates.

We will continue to incur increased costs as a result of being a U.S. reporting company.

In connection with the effectiveness of our registration statement on Form 10, as of February 14, 2012, we became subject to the periodic reporting requirements of the Exchange Act. Although we were previously listed on the Australian Securities Exchange and had been required to file financial information and make certain other filings with the Australian Securities Exchange, our status as a U.S. reporting company under the Exchange Act has caused us, and will continue to cause us, to incur additional legal, accounting and other expenses that we did not previously incur, including costs related to compliance with the requirements of SOX and the listing requirements of Thethe Nasdaq Capital Market. We expect these rules and regulations will continue to increase our legal and financial compliance costs and make some activities more time-consuming and costly, and these activities may increase general and administrative expenses and divert management’s time and attention away from revenue-generating activities. Furthermore, now that we are a revenue-generating company following the acquisition of the Aquadex Business in August 2016, our costs to comply with regulations applicable to U.S. reporting companies may further increase. We also expect these rules and regulations may make it more difficult and more expensive for us to obtain director and

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officer liability insurance and we may be required to accept reduced policy limits and coverage or incur substantially higher costs to obtain the same or similar coverage. As a result, it may be more difficult for us to attract and retain qualified individuals to serve on our board of directors or as executive officers.

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Investors could lose confidence in our financial reports, and the value of our common stock may be adversely affected, if our internal controls over financial reporting are found not to be effective by management or by an independent registered public accounting firm or if we make disclosure of existing or potential material weaknesses in those controls.

In connection with becoming

As long as we remain a company required to file reports with the SEC,non-accelerated filer, we are required to comply withexempt from the internal control evaluation and certification requirements of Section 404 of SOX. Our independent registered public accounting firm will not be required to formally attest toattestation requirement in the effectivenessassessment of our internal control over financial reporting by our independent auditors pursuant to Section 404section 404(b) of SOX, until the date webut are no longer an “emerging growth company” as defined in the JOBS Act or a “smaller reporting company” as defined by applicable SEC rules. We will no longer qualify as an “emerging growth company” on or before December 31, 2017, although we will remain a “smaller reporting company” as long asrequired to make our public float remains less than $75 million asown internal assessment of the last business dayeffectiveness of our most recently-completed second fiscal quarter.

internal controls over financial reporting.

We continue to evaluate our existing internal controls over financial reporting against the standards adopted by the Public Company Accounting Oversight Board.reporting. During the course of our ongoing evaluation of the internal controls, we may identify areas requiring improvement and may have to design enhanced processes and controls to address issues identified through this review. Remediating any deficiencies, significant deficiencies or material weaknesses that we or our independent registered public accounting firm may identify may require us to incur significant costs and expend significant time and management resources. We cannot assure you that any of the measures we implement to remedy any such deficiencies will effectively mitigate or remedy such deficiencies. The existence of one or more material weaknesses could affect the accuracy and timing of our financial reporting. It may be more difficult for us to manage our internal control over financial reporting following our acquisition of the Aquadex Business now that we are a revenue generating company. Investors could lose confidence in our financial reports, and the value of our common stock may be harmed, if our internal controls over financial reporting are found not to be effective by management or by anour independent registered public accounting firm or if we make disclosure of existing or potential material weaknesses in those controls.

Our certificateFourth Amended and Restated Certificate of incorporation designates the Court of Chancery of the State of DelawareIncorporation, as the sole and exclusive forum for certain litigation that may be initiated by our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with the Company.

Our certificate of incorporationamended, provides that, unless we consent in writing to the selection of an alternative forum, the Court of Chancery of the State of Delaware will be the sole and exclusive forum for (i)substantially all disputes between us and our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers, or employees.

Our Fourth Amended and Restated Certificate of Incorporation, as amended, provides that, unless we consent in writing to the selection of an alternative forum, the Court of Chancery of the State of Delaware will be the exclusive forum for any derivative action or proceeding brought on our behalf, (ii)behalf; any action asserting a breach of fiduciary duty; any action asserting a claim of breach of a fiduciary duty owed by any of our directors, officersagainst us arising pursuant to the Delaware General Corporation Law (the “DGCL”); or other employees to us or our stockholders, (iii) any action asserting a claim arising pursuant to any provision of the Delaware General Corporation Law, as amended (the “DGCL”), or (iv) any other action asserting a claimagainst us that is governed by the internal affairs doctrine. This choice of forum provision does not preclude or contract the scope of exclusive federal or concurrent jurisdiction for any actions brought under the Securities Act of 1933 (“Securities Act”) or the Exchange Act. Accordingly, our exclusive forum provision will not relieve us of our duties to comply with the federal securities laws and the rules and regulations thereunder, and our stockholders will not be deemed to have waived our compliance with these laws, rules and regulations.
Any person or entity purchasing or otherwise acquiring any interest in sharesany of our capital stocksecurities shall be deemed to have notice of and to have consented to thethese provisions. These exclusive-forum provisions described above. This forum selection provision may limit our stockholders’a stockholder’s ability to obtainbring a claim in a judicial forum that they find favorableof its choosing for disputes with us or our directors, officers or other employees, which may discourage lawsuits against us and our directors, officers and other employees.

If a court were to find the choice of forum provision contained in our Fourth Amended and Restated Certificate of Incorporation, as amended, to be inapplicable or unenforceable in an action, we may incur additional costs associated with resolving such action in other jurisdictions, which could harm our business, results of operations, and financial condition. Even if we are successful in defending against these claims, litigation could result in substantial costs and be a distraction to management and other employees.
Our certificate of incorporation and bylaws, as well as certain provisions of the DGCL, may delay or deter a change in control transaction.

Certain provisions of our certificate of incorporation and bylaws may have the effect of deterring takeovers, such as those provisions authorizing our board of directors to issue, from time to time, any series of preferred stock and fix the designation, powers, preferences and rights of the shares of such series of preferred stock; prohibiting stockholders from acting by written consent in lieu of a meeting; requiring advance notice of
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stockholder intention to put forth director nominees or bring up other business at a stockholders’ meeting; prohibiting stockholders from calling a special meeting of stockholders; requiring a 662/ 2⁄3% majority stockholder approval in order for stockholders to amend certain provisions of our certificate of incorporation or bylaws or adopt new bylaws; providing that, subject to the rights of preferred shares, the directors will be divided into three classes and the number of directors is to be fixed exclusively by our board of directors; and providing that none of our directors may be removed without cause.

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Section 203 of the DGCL, from which we did not elect to opt out, provides that if a holder acquires 15% or more of our stock without prior approval of our board of directors, that holder will be subject to certain restrictions on its ability to acquire us within three years. These provisions may delay or deter a change in control of us, and could limit the price that investors might be willing to pay in the future for shares of our common stock.

We are an “emerging growth company” and a “smaller reporting company” under federal securities laws and we cannot be certain ifwhether the reduced reporting requirements applicable to such companies will make our common stock less attractive to investors.

We are an “emerging growth company” and a “smaller reporting company” under federal securities laws. For as long as we continue to be an emerging growth company or a smaller reporting company, we may take advantage of exemptions from various reporting requirements that are applicable to other public companies, including not being required to comply with the external auditor attestation requirements of Section 404 of SOX, reduced disclosure obligations regarding executive compensation in our periodic reports and proxy statements and, for emerging growth companies, exemptions from the requirements of holding a non-binding advisory vote on executive compensation and stockholder approval of any golden parachute payments not previously approved. The JOBS Act also permits emerging growth companies to take advantage of an extended transition period to comply with new or revised accounting standards applicable to U.S. public companies.statements. We will be an emerging growth company until December 31, 2017, although we will remain a smaller reporting company so long as our public float remains less than $75$250 million as of the last business day of our most recently-completedrecently completed second fiscal quarter. We cannot predict if investors will find our common stock less attractive because we may rely on these exemptions. If some investors find our common stock less attractive as a result, there may be a less active trading market for our common stock and our stock price may decline or be more volatile.

As explained above, Section 102(b)(1)

Stockholder litigation could divert the attention of management from the day-to-day operation of our business or result in us incurring substantial costs and liabilities.
We cannot be sure that our stockholders will not initiate securities litigation against us in the future. If securities or stockholder derivative litigation were to be commenced against us, our defense of such litigation could divert the attention of management from the day-to-day operation of our business or result in us incurring substantial costs and liabilities, irrespective of the JOBS Act also provides that an emerging growth company can take advantagemerits of the extended transition period provided in Section 7(a)(2)(B) of the Securities Act, for complying with new or revised accounting standards. An emerging growth company can delay the adoption of new or revised accounting standards that have different effective dates for public and private companies until those standards would otherwise apply to private companies. We have elected to take advantage of the benefits of this extended transition period, and as a result of this election, our financial statements may not be comparable to those of companies that comply with public company effective dates for new or revised accounting standards for U.S. public companies. We will be an emerging growth company until December 31, 2017 and after such date can no longer take advantage of the extended transition period provided in Section 7(a)(2)(B) of the Securities Act.

litigation.

Risks Relating to this Offering

If you purchase Series F convertible preferred stock in this offering, you will incur immediate and substantial dilution in the net tangible book value of your shares.

Investors in this offering will experience immediate dilution in their net tangible book value per share to the extent of the difference between the conversion price per share of common stock and the “adjusted” net tangible book value per share after giving effect to the offering. Our net tangible book value as of September 30, 2017 was approximately $3.0 million, or $4.75 per share of our common stock. Assuming that we issue 10,000 shares of Series F convertible preferred stock at a price of $1,000 per share and the Series F preferred stock sold in this offering has a conversion price of $4.67 per share, which was 100% of the consolidated closing bid price of our common stock on The Nasdaq Capital Market on November 9, 2017, and assuming the conversion of all the shares of Series F preferred stock sold in the offering (not taking into account any anti-dilution adjustments in the Series F preferred stock), and after deducting the commissions and estimated offering expenses payable by us, our net tangible book value as of September 30, 2017 would have been approximately $12.0 million, or $4.32 per share of our common stock. This calculation excludes the proceeds, if any, from the exercise of the warrants issued in this offering. This amount represents an immediate decrease in net tangible book value of $0.43 per share to our existing stockholders and an immediate dilution in net tangible book value of $0.35 per share to new investors in this offering. If outstanding options and warrants to purchase our common stock are exercised, you will experience dilution. See the section entitled “Dilution” below.

As a result of the dilution to investors purchasing shares in this offering, investors may receive significantly less than the purchase price paid in this offering, if anything, in the event of a liquidation of our company.

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Because our management will have broad discretion and flexibility in how the net proceeds from this offering are used, our management may use the net proceeds in ways with which you disagree or which may not prove effective.

We currently intend to use the net proceeds from this offering as discussed under “Use of Proceeds” in this prospectus. We have not allocated specific amounts of the net proceeds from this offering for any of the foregoing purposes. Accordingly, our management will have significant discretion and flexibility in applying the net proceeds of this offering. You will be relying on the judgment of our management with regard to the use of these net proceeds, and you will not have the opportunity, as part of your investment decision, to assess whether the net proceeds are being used appropriately. It is possible that the net proceeds will be invested in a way that does not yield a favorable, or any, return for us. The failure of our management to use such funds effectively could have a material adverse effect on our business, financial condition, operating results and cash flow.

The Series FI Preferred Stock and the warrants are unlisted securities and there is no public market for them.

There is no established public trading market for the Series FI Preferred Stock or the warrants, and we do not expect a market to develop. In addition, neither the Series FI Preferred Stock nor the warrants are listed, and we do not intend to apply for listing of the Series FI Preferred Stock or the warrants on any securities exchange or trading system. Without an active market, the liquidity of the Series FI Preferred Stock and the warrants is limited, and investors may be unable to liquidate their investments in the Series FI Preferred Stock or the warrants.

The value of our Series F convertible preferred stockI Preferred Stock is directly tied to the value of our common stock, and any change in the value of our common stock will be reflected in the value of our Series F convertible preferred stock.

I Preferred Stock.

There is no established public trading market for the Series F convertible preferred stock,I Preferred Stock, and we do not expect a market to develop. In addition, we do not intend to apply for listing of the Series F convertible preferred stockI Preferred Stock on any national securities exchange or other nationally recognized trading system. As a result, because each share of
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Series F convertible preferred stockI Preferred Stock is initially convertible into a numberone share of shares of our common stock, equal to $1,000 divided by the conversion price, subject to certain beneficial ownership limitations, we expect the value of the Series F convertible preferred stockI Preferred Stock to have a value directly tied to the value of our common stock. Accordingly, any change in the trading price of our common stock will be reflected in the value of our Series F convertible preferred stock,I Preferred Stock, and the price of our common stock may be volatile as described above.

The conversion of shares of our Series F convertible preferred stock into common stock, or the perception that such conversions may occur, could cause the market price of our common stock to decline.

Each share of our Series F convertible preferred stock is initially convertible into a number of shares of our common stock equal to $1,000 divided by the conversion price at any time at the option of the holder, subject to certain limitations. See “Description of Securities.” The conversion of substantial amounts of our Series F convertible preferred stock would result in the issuance by us of a substantial number of additional shares of our common stock, which, subject to certain limitations, could be traded publicly. Such conversions, or the perception that such conversions may occur, could cause the market price of our common stock to decline.

The warrants may not have any value.

The Series 1 warrants will be exercisable for one year from the closing date at an initial exercise price of $[      ] per share. The Series 2 warrants will be exercisable for sevenfive years from the closing date at an initial exercise price of $[      ]$  per share. In the event that the price of a share of our common stock does not exceed the exercise price of the warrants during the period when the warrants are exercisable, the warrants may not have any value.

Additionally, such warrants will not be exercisable unless and until we obtain stockholder approval to permit the exercise of the warrants. In the event that we are unable to obtain the Warrant Stockholder Approval, the warrants will not be exercisable and therefore have no value.

The warrants purchased in this offering do not entitle the holder to any rights as common stockholders until the holder exercises the warrant for shares of our common stock.

Until you acquire shares of our common stock upon exercise of your warrants purchased in this offering, such warrants will not provide you any rights as a common stockholder, except as set forth in the warrants. Upon exercise of your warrants purchased in this offering, you will be entitled to exercise the rights of a common stockholder only as to matters for which the record date occurs on or after the exercise date.

Purchasers in this offering may experience dilution of their investment in the future.
Subject to lock-up provisions described under “Underwriting,” we are generally not restricted from issuing additional securities, including shares of common stock, securities that are convertible into or exchangeable for, or that represent the right to receive, common stock or substantially similar securities. The issuance of securities may cause dilution to our stockholders, including investors in this offering. In order to raise additional capital, such securities may be at prices that are not the same as the price per share in this offering. We cannot assure you that we will be able to sell shares or other securities in any other offering at a price per share that is equal to or greater than the price per share paid by investors in this offering, and investors purchasing shares or other securities in the future could have rights superior to existing stockholders, including investors who purchase securities in this offering. The price per share at which we sell additional shares of our common stock or securities convertible into common stock in future transactions may be higher or lower than the price per share in this offering. The exercise of outstanding stock options or warrants and the vesting of outstanding restricted stock units may also result in dilution of your investment.

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus including the documents that we incorporate by reference, contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, or the Securities Act and Section 21E of the Exchange Act. Any statements about our expectations, beliefs, plans, objectives, assumptions or future events or performance are not historical facts and may be forward-looking. These statements are often, but are not always, made through the use of words or phrases such as “anticipates,” “estimates,” “plans,” “projects,” “continuing,” “ongoing,” “expects,” “management believes,” “we believe,” “we intend” and similar words or phrases. Accordingly, these statements involve estimates, assumptions and uncertainties which could cause actual results to differ materially from those expressed in them. Any forward-looking statements are qualified in their entirety by reference to the factors discussed throughout this prospectus, and in particular those factors included in the section entitled “Risk Factors.”

Because the factors referred to in the preceding paragraph could cause actual results or outcomes to differ materially from those expressed in any forward-looking statements we make, you should not place undue reliance on any such forward-looking statements. Further, any forward-looking statement speaks only as of the date on which it is made, and we undertake no obligation to update any forward-looking statement or statements to reflect events or circumstances after the date on which such statement is made or to reflect the occurrence of unanticipated events. New factors emerge from time to time, and it is not possible for us to predict which factors will arise. In addition, we cannot assess the impact of each factor on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements.

You should carefully read this prospectus and any related free writing prospectus together with the information incorporated herein or therein by reference as described under the section titled “Information Incorporated by Reference,” and with the understanding that our actual future results may materially differ from what we expect.

Except as required by law, forward-looking statements speak only as of the date they are made, and we assume no obligation to update any forward-looking statements publicly, or to update the reasons why actual results could differ materially from those anticipated in any forward-looking statements, even if new information becomes available.

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USE OF PROCEEDS

We estimate that the net proceeds to us from the sale of the securities offered by this prospectusUnits in this offering will be approximately $9.0$9.2 million (or $10.7 million if the underwriters fully exercise their overallotment option), after deducting commissionsunderwriting discounts and estimated offering expenses payable by us.

We will not receive any additional proceeds from any future conversions of the Series I Preferred Stock. We will only receive additional proceeds from the exercise of the warrants issuable in connection with this offering if the warrants are exercised and the holders of such warrants pay the exercise price in cash upon such exercise and do not utilize the cashless exercise provision of the warrants. We currently intend to use the net proceeds from this offering for working capital needs for our Aquadex product, including the purchase of Baxter’s remaining Aquadex product inventory for $1.2 million by February 1, 2018, for general corporate purposes, including the continuing expansion offor continued investments in our field sales force, and to fund anticipated clinical studies.

The allocationcommercialization efforts. We may use a portion of the net proceeds for the acquisitions of businesses, products, technologies or licenses that are complementary to our business, although we have no present commitments or agreements to do so.

The net proceeds of the offering set forth above represents our estimates based upon our current plans and assumptions regarding industry and general economic conditions, our future revenues and expenditures.

The amounts and timing of our actual expenditures may vary significantly and will depend uponon numerous factors, including market conditions, cash generated or used by our operations, business developments and opportunities that may arise and related rate of growth. We may find it necessary or advisable to use portions of the proceeds from this offering for other purposes.

Circumstances that may give rise to a change in the use of proceeds and the alternate purposes for which the proceeds may be used include:

the existence of other opportunities or the need to take advantage of changes in timing of our existing activities;
the need or desire on our part to accelerate, increase or eliminate existing initiatives due to, among other things, changing market conditions and competitive developments; and/or
if strategic opportunities present themselves (including acquisitions, joint ventures, licensing and other similar transactions).

From time to time, we evaluate these and other factors and we anticipate continuing to make such evaluations to determine if the existing allocation of resources, including the proceeds of this offering, is being optimized.

Pending such uses, we intend to investthe application of the net proceeds ofas described above, we will hold the net proceeds from this offering in direct and guaranteed obligations of the United States,short-term, interest-bearing investment-grade instruments or certificates of deposit.

We believe that we will need to raise additional capital to fund our operations in 2018. Additional capital may not be available on terms favorable to us, or at all. If we raise additional funds by issuing equity securities, our stockholders may experience dilution. Debt financing, if available, may involve restrictive covenants or additional security interests in our assets. Any additional debt or equity financing that we complete may contain terms that are not favorable to us or our stockholders. If we raise additional funds through collaboration and licensing arrangements with third parties, it may be necessary to relinquish some rights to our technologies or products, or grant licenses on terms that are not favorable to us. If we are unable to raise adequate funds, we may have to delay, reduce the scope of, or eliminate some or all of, our development programs or liquidate some or all of our assets.

securities.

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SELECTED FINANCIAL DATA

The following selected financial data as of December 31, 2016 and 2015 and for the fiscal years ended December 31, 2016 and 2015 are derived from, and should be read together with, our consolidated financial statements incorporated herein from our Annual Report on Form 10-K for the year ended December 31, 2016. The following selected financial data as of December 31, 2014, 2013 and 2012 and for the fiscal years ended December 31, 2014, 2013 and 2012 are derived from consolidated financial statements not included or incorporated herein. The information set forth below should be read in conjunction with “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” the Consolidated Financial Statements and Notes thereto and other financial information included elsewhere in our Annual Report on Form 10-K for the year ended December 31, 2016.

 
For the year ended December 31,
(in thousands, except share and per share data)
 
2016
2015
2014
2013
2012
Statement of Operations Data:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net Sales
$
1,289
 
$
59
 
$
295
 
$
59
 
$
 
Research and development expense
$
8,109
 
$
17,672
 
$
16,874
 
$
13,504
 
$
8,003
 
Net loss
$
(15,792
)
$
(26,583
)
$
(25,587
)
$
(21,758
)
$
(14,065
)
Basic and diluted loss per share(1)
$
(482.72
)
$
(880.23
)
$
(908.40
)
$
(1,026.50
)
$
(1,188.73
)
Weighted average shares outstanding – basic and diluted1
 
32,711
 
 
30,201
 
 
28,167
 
 
21,197
 
 
11,832
 
 
As of December 31,
(in thousands)
 
2016
2015
2014
2013
2012
Balance Sheet Data:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total assets
$
7,471
 
$
24,450
 
$
32,373
 
$
55,230
 
$
15,036
 
Long-term obligations
 
1,969
 
 
4,281
 
 
 
 
 
 
 
Total stockholders’ equity
 
1,757
 
 
12,171
 
 
29,215
 
 
51,727
 
 
12,949
 
CAPITALIZATION
(1)Adjusted to reflect the 1-for-30 reverse split of our common stock that was effected after trading on January 12, 2017 and the 1-for-20 reverse split of our common stock that was effected after trading on October 12, 2017.

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PRICE RANGE OF COMMON STOCK AND DIVIDEND POLICY

Our common stock is currently listed on The Nasdaq Capital Market under the symbol “CHFS.” See “Prospectus Summary—Recent Developments” in this prospectus for important information about the listing of our common stock on The Nasdaq Capital Market. Neither the Series F Preferred Stock nor the warrants will be traded on a national securities exchange. The following table contains, for the periods indicated, the intraday high and low sale prices per share of our common stock. These prices have been adjusted to reflect the 1-for-30 reverse split of our common stock that was effected after trading on January 12, 2017 and the 1-for-20 reverse split of our common stock that was effected after trading on October 12, 2017.

 
High
Low
2015
 
 
 
 
 
 
First Quarter
$
4,140.41
 
$
2,280.23
 
Second Quarter
$
2,976.30
 
$
1,932.19
 
Third Quarter
$
2,141.55
 
$
1,200.12
 
Fourth Quarter
$
1,638.16
 
$
636.06
 
2016
 
 
 
 
 
 
First Quarter
$
828.08
 
$
336.03
 
Second Quarter
$
584.28
 
$
240.02
 
Third Quarter
$
972.10
 
$
264.03
 
Fourth Quarter
$
576.06
 
$
90.01
 
2017
 
 
 
 
 
 
First Quarter
$
240.02
 
$
33.00
 
Second Quarter
$
45.00
 
$
10.29
 
Third Quarter
$
22.00
 
$
11.20
 
Fourth Quarter (through November 9, 2017)
$
13.20
 
$
4.51
 

As of November 9, 2017, the last reported sale price of our common stock on The Nasdaq Capital Market was $4.67.

As of November 9, 2017, there were approximately 106 stockholders of record for our common stock. A substantially greater number of stockholders may be “street name” or beneficial holders, whose shares are held of record by banks, brokers and other financial institutions.

We have never declared or paid any cash dividends on our common stock, and we currently do not anticipate paying any cash dividends in the foreseeable future. We intend to retain any earnings to finance the development and expansion of our products and business.

Our transfer agent is American Stock Transfer & Trust Company LLC, 6201 15th Avenue, Brooklyn, New York 11219; Telephone: 800-937-5449.

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CAPITALIZATION

The following table sets forth our actual cash and cash equivalents and our capitalization as of SeptemberJune 30, 20172022 and on an adjusted basis to give effect to the sale of the securities offered hereby and the use of proceeds, as described in the section entitled “Use of Proceeds.”

You should read this information in conjunction with “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and our consolidated financial statements and related notes appearing in our Annual Report on Form 10-K for the year ended December 31, 2021, and our condensed consolidated financial statements and related notes appearing in our Quarterly ReportReports on Form 10-Q for the quarterly periodperiods ended SeptemberMarch 31, 2022 and June 30, 2017,2022, which isare each incorporated by reference intoin this prospectus. The information provided below has been adjusted to reflect our 1-for-20 reverse stock split that was effected after tradingthe effect of this current offering.
The pro forma information set forth in the table below is illustrative only and will be adjusted based on October 12, 2017.

 
As of September 30, 2017
(in thousands, except
share and per share data)
 
Actual
As Adjusted
Cash and cash equivalents
$
2,513
 
$
11,498
 
Common stock warrant liability
 
6
 
 
6
 
Stockholders’ equity:
 
 
 
 
 
 
Series A junior participating preferred stock, par value $0.0001 per share; authorized 30,000 shares, none outstanding
 
 
 
 
Series F convertible preferred, par value $0.0001 per share; authorized none and 10,000, respectively, issued and outstanding none and 10,000, respectively
 
 
 
 
Preferred stock, par value $0.0001 per share; authorized 39,970,000 and 39,960,000, respectively, none outstanding
 
 
 
 
 
 
Common stock, par value $0.0001 per share; authorized 100,000,000 shares, issued and outstanding 625,844 and 625,844, respectively
 
 
 
 
Additional paid-in capital
 
180,972
 
 
189,957
 
Accumulated other comprehensive income:
 
 
 
 
 
 
Foreign currency translation adjustment
 
1,228
 
 
1,228
 
Accumulated deficit
 
(175,219
)
 
(175,219
)
Total stockholders’ equity
 
6,981
 
 
15,966
 
the actual public offering price and other terms of this offering determined at pricing.
 
As of June 30, 2022
(in thousands, except
share and per share data)
 
Actual
As
Adjusted
Cash and cash equivalents
$15,345
24,598
Stockholders’ equity:
 
 
Series A junior participating preferred stock, par value $0.0001 per share; authorized 30,000 shares, none outstanding
 
Series F convertible preferred stock, par value $0.0001 per share; authorized 127 shares, issued and outstanding 127 shares
 
Series I convertible preferred stock, par value $0.0001 per share; authorized none and 7,196,401 shares, respectively, issued and outstanding none and 7,196,401 shares, respectively
 
 
Preferred stock, par value $0.0001 per share; authorized 39,969,873 shares, respectively, none outstanding
 
 
Common stock, par value $0.0001 per share; authorized 100,000,000 shares, issued and outstanding 10,537,606 shares
1
3
Additional paid-in capital
279,350
288,602
Accumulated other comprehensive income:
 
 
Foreign currency translation adjustment
(12)
(12)
Accumulated deficit
(261,675)
(261,675)
Total stockholders’ equity
17,664
26,917

The pro forma as adjusted column above reflects our sale of Series F convertible preferredI Preferred Stock, common stock and warrants in this offering.offering at an assumed public offering price of $0.58, the closing price of our common stock on September 27, 2022, per Class A Unit and an assumed public offering price of $0.58 per Class B Unit, the closing price of our common stock on September 27, 2022. The above discussion and table are based on 625,84410,537,606 shares of common stock outstanding as of September 30, 2017 and:

15, 2022, assuming no exercise of the overallotment option granted to the underwriters and excludes:
exclude 36,8741,200,259 shares of common stock issuable upon the exercise of outstanding stock options, having a weighted average exercise price of $91.17$4.78 per share and 324 shares of common stock issuable upon the vesting of restricted stock units, in each case outstanding as of September 30, 2017;share;
exclude 496,6291,630,627 shares of our common stock issuable upon the exercise of outstanding warrants (other than the warrants offered hereby) with a weighted-average exercise price of $27.51$25.47 per shareshare;
50,800 shares of common stock issuable upon the conversion of the 127 outstanding asshares of September 30, 2017;our Series F Preferred Stock;
exclude 57,2961,921,713 shares of our common stock reserved for future issuance under our equity incentive plans;
additional7,196,401 shares of common stock that may be issuable upon conversion of Series F preferred stock pursuant to the anti-dilution provisions thereof; and
exclude 4,282,655 shares of our common stock initially issuable upon the exercise of the warrants to be sold in this offering.

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DILUTION

If you invest in the shares of Series F convertible preferred stock, your interest in the common stock underlying the Series F preferred stockI Preferred Stock; and the warrants offered hereunder may be diluted to the extent of the difference between the price you pay for each share of common stock and the net tangible book value per share of our common stock immediately after this offering. Our net tangible book value as of September 30, 2017 was approximately $3.0 million, or $4.75 per share of our common stock. Net tangible book value per share is equal to our total tangible assets minus total liabilities, all divided by 625,844 of

17,991,003 shares of common stock outstanding at September 30, 2017. The information provided in this section has been adjusted to reflectunderlying the 1-for-20 reverse stock split that was effected after trading on October 12, 2017.

Assuming that we issue 10,000 shares at a price of $1,000 per share, the Series F preferred stock sold in this offering has a conversion price of $4.67 per share, which was 100% of the consolidated closing bid price of our common stock on The Nasdaq Capital Market on November 9, 2017, and assuming the conversion of all the shares of Series F preferred stock sold in the offering (not taking into account any anti-dilution adjustments in the Series F preferred stock), and after deducting the commissions and estimated offering expenses payable by us, our net tangible book value as of September 30, 2017 would have been approximately $12.0 million, or $4.32 per share of our common stock. This calculation excludes the proceeds, if any, from the exercise of warrants issued in this offering. This amount represents an immediate decrease in net tangible book value of $0.43 per share to our existing stockholders and an immediate dilution in net tangible book value of $0.35 per share to new investors in this offering.

We determine dilution by subtracting the adjusted net tangible book value per share after this offering from the conversion price per share of our common stock. The following table illustrates the dilution in net tangible book value per share to new investors:

Assumed conversion price per share of Series F preferred stock
 
 
 
$
4.67
 
Historical net tangible book value per share at September 30, 2017
$
4.75
 
 
 
 
Decrease per share attributable to investors purchasing securities in this offering
$
0.43
 
 
 
 
Net tangible book value per share, as adjusted to give effect to this offering
 
 
 
$
4.34
 
Dilution per share to investors in this offering
 
 
 
$
0.35
 
warrants.

The information above is illustrative only and will change based on actual pricing and other terms of this offering determined at pricing.

The information above is based on 625,844 shares of common stock outstanding as of September 30, 2017 and:

excludes 36,874 shares of common stock issuable upon the exercise of stock options, having a weighted average exercise price of $91.17 per share and 324 shares of common stock issuable upon the vesting of restricted stock units, in each case outstanding as of September 30, 2017;
excludes 496,629 shares of our common stock issuable upon the exercise of warrants with a weighted-average exercise price of $27.51 per share outstanding as of September 30, 2017;
excludes 57,296 shares of our common stock reserved for future issuance under our equity incentive plans;
additional shares of common stock that may be issuable upon conversion of Series F preferred stock pursuant to the anti-dilution provisions thereof; and
excludes 4,282,655 shares of our common stock initially issuable upon the exercise of the warrants to be sold in this offering.

To the extent that outstanding options or warrants are exercised, you could experience further dilution. In addition, we may choose to raise additional capital due to market conditions or strategic considerations even if we believe we have sufficient funds for our current or future operating plans. To the extent that additional capital is raised through the sale of additional equity, the issuance of these shares could result in further dilution to our stockholders.

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BUSINESS

Overview

We are a medical device company focused on commercializing our Aquadex FlexFlow ultrafiltration system. Our commercial product, the Aquadex FlexFlow system, is indicated for temporary (up to eight hours) ultrafiltration treatment of patients with fluid overload who have failed diuretic therapy, and extended (longer than 8 hours) ultrafiltration treatment of patients with fluid overload who have failed diuretic therapy and require hospitalization.

Company History

Prior to July 2016, we were focused on developing the C-Pulse® Heart Assist System for treatment of Class III and ambulatory Class IV heart failure. The C-Pulse System utilized the known concept of counterpulsation applied to the aorta. In March 2016, we announced that we were no longer enrolling patients into our two clinical studies for the C-Pulse System and that we planned to pursue a new strategic direction. In July 2016, we announced that we were moving forward with a therapeutic strategy utilizing neuromodulation rather than counterpulsation.

In August 2016, we acquired the Aquadex Business from Baxter, a global leader in the hospital products and dialysis markets.

On September 29, 2016, we announced a strategic refocus of our near-term strategy that includes halting clinical evaluations of our neuromodulation technology to fully focus our resources on our recently acquired Aquadex Business, taking actions to reduce our cash burn in connection with such strategic refocus, and reviewing potential strategic alliances and financing alternatives.

The Aquadex FlexFlow System

The Aquadex FlexFlow system is designed to simply, safely, and precisely remove excess fluid (primarily excess salt and water) from patients suffering from fluid overload who have failed diuretic therapy. With the Aquadex FlexFlow system, medical practitioners can specify and control the amount of fluid to be extracted at a safe, predictable, and effective rate, in a process we refer to as Aquapheresis® therapy. All Aquapheresis treatments must be administered by a healthcare provider, under physician prescription, both of whom have received training in extracorporeal therapies. The Aquadex FlexFlow system has been shown to have no clinically significant impact on electrolyte balance, blood pressure or heart rate.4

Benefits of the Aquadex FlexFlow System

The Aquadex FlexFlow ultrafiltration system offers a safe approach to treating fluid overload and:

Provides complete control over rate and total volume of fluid removed by allowing a medical practitioner to specify the amount of fluid to be removed from each individual patient
Aquapheresis therapy can be performed via peripheral or central venous access
Removes isotonic fluid (extracts sodium while sparing potassium and magnesium)5
Following ultrafiltration, neurohormonal activation is reset toward a more physiological condition and diuretic efficacy is restored6
Provides highly automated operation with only one setting required to begin
Utilizes a single-use, disposable auto-loading blood filter circuit that facilitates easy set-up
The console guides medical practitioner through the setup and operational process
Decreased hospital length of stay and readmissions7
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4SAFE Trial: Jaski BE, et al. J Card Fail. 2003 Jun; 9(3): 227-231; RAPID Trial: Bart BA, et al. J Am Coll Cardiol. 2005 Dec 6; 46(11): 2043-2046.
5Ali SS, et al. Congest Heart Fail. 2009; 15(1):1-4.
6Marenzi G, et al. J Am Coll Cardiol. 2001 Oct; 38(4): 963-968.
7Costanzo MR, et al. J Am Coll Cardiol. 2005 Dec 6; 46(11): 2047-2051.

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The Aquadex FlexFlow system consists of:

A console, a piece of capital equipment containing electromechanical pumps and an LCD screen
A one-time disposable blood set (the “Aquadex Blood Set”), an integrated collection of tubing, filter, sensors, and connectors that contain and deliver the blood from and back to the patient, and
A disposable catheter (the “Aquadex Catheter”), a small, dual-lumen catheter designed to access the peripheral venous system of the patient and to simultaneously withdraw blood and return filtered blood to the patient.
The Aquadex Blood Set is proprietary and the Aquadex FlexFlow system can only be used with the Aquadex Blood Set. The Aquadex Catheter is often used in conjunction with the Aquadex FlexFlow system, although it is one of many potential catheter options available to the provider.

Our Market Opportunity

Heart failure is one of the leading causes of death in the United States and other developed countries. Based on data from the National Health and Nutrition Examination Survey conducted by the Centers for Disease Control and Prevention/National Center for Health Statistics from 2011 to 2014, the American Heart Association estimates that 6.5 million people in the United States, age 20 and over, had heart failure8. Based on the Atherosclerosis Risk in Communities Study from 2005 to 2013, conducted by the National Heart, Lung and Blood Institute, there are an estimated 960,000 new heart failure cases annually9. Annual hospitalizations for heart failure exceed 1 million in both the United States and Europe, and more than 90% are due to symptoms and signs of fluid overload10. Congestive heart failure is the highest U.S. chronic health care expense category11.

Heart failure is a progressive disease caused by impairment of the left heart’s ability to pump blood to the various organs of the body. Patients with heart failure commonly experience shortness of breath, fatigue, difficulty exercising and swelling of the legs. The heart becomes weak or stiff and enlarges over time, making it harder for the left heart to pump the blood needed for the body to function properly. The severity of heart failure depends on how well a person’s heart is able to pump blood throughout the body.

Heart failure is the leading cause of fluid overload, a condition where patients become decompensated resulting in lengthy and costly hospitalizations. In fact, 90% of heart failure patients present symptoms of fluid overload.12 Our system is indicated for temporary (up to eight hours) ultrafiltration treatment of patients with fluid overload who have failed diuretic therapy, and extended (longer than 8 hours) ultrafiltration treatment of patients with fluid overload who have failed diuretic therapy and require hospitalization.

According to a nationwide study of over 140,000 patients suffering from acute decompensated heart failure, over 38% of patients discharged were still symptomatic and about half of the patients were discharged with less than five pounds lost.13 This clinical evidence from the ADHERE Registry clearly shows patients are discharged too early, while still showing evidence of fluid overload. By not truly addressing the fluid overload problem, patients are being readmitted to the hospital too frequently, with 30-day readmissions of 24% and 6-month readmissions of 50%, while 78% of patients are admitted directly to the Emergency Department as the first point of care.1415

8Benjamin EJ, al. on behalf of the American Heart Association Statistics Committee and Stroke Statistics Subcommittee. Heart disease and stroke statistics—2017 update: a report from the American Heart Association. Circulation. 2017;135:00-00. (e378)
9Benjamin EJ, al. on behalf of the American Heart Association Statistics Committee and Stroke Statistics Subcommittee. Heart disease and stroke statistics—2017 update: a report from the American Heart Association. Circulation. 2017;135:00-00. (e378)
10Costanzo MR, et al. J Am Coll Cardiol. 2017; 69: 2428-45.
11Mozzafarian D, Benjamin EJ, Go AS, et al. on behalf of the American Heart Association Statistics Committee and Stroke Statistics Subcommittee. Heart disease and stroke statistics—2016 update: a report from the American Heart Association. Circulation. 2016;133:e38-e360. (6)
12Costanzo MR, et al. J Am Coll Cardiol. 2007 Feb 13; 49(6): 675-683.
13ADHERE Scientific Advisory Committee. ADHERE Final Cumulative National Benchmark Report. Mountain View, CA: Scios Inc.; 2006.
14Desao AS, Steverson LW. Circulation. 2012 Jul 24, 126(4): 501-506
15Krumholtz HM et. al. Arch Intern Med. 1997 Jan 13;157(1): 99-104—Ross JS, et al. Circ Heart Fail. 2010 Jan; 3(1): 97-103.

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The Affordable Care Act includes a Hospital Readmission Reduction program and is designed to reduce payments to hospitals with excess heart failure readmissions, among other conditions. The penalty to hospitals can be significant, as much as 3% of total Medicare reimbursement. The Aquadex FlexFlow system is positioned to assist hospitals with the Affordable Care Act and may offer hospitals an economic benefit for using the device on a regular basis for in-patient or out-patient usage.

There are two market segments for treating fluid overload with the Aquadex FlexFlow system:

1)Inpatient Care—Provided to a patient admitted to a hospital, extended care facility, nursing home or other facility. Long term care is the range of services typically provided at skilled nursing, intermediate-care, personal care or eldercare facilities.
2)Outpatient Care—Any health care service provided to a patient who is not admitted to a facility. Outpatient care can be provided in a doctor’s office, clinic, or hospital outpatient department.

Our target customers for the Aquadex FlexFlow system include large academic hospitals specializing in advanced treatment of chronic heart failure, other large hospitals with heart failure related admissions and clinical practices with transplant or left ventricle assist device, known as LVAD, programs.

Our Strategy

Our mission is to improve the quality of life for people suffering from fluid overload. We provide healthcare professionals with a sophisticated, yet easy to use, mechanical pump and filter system to remove excess fluid in fluid overloaded congestive heart failure patients and patients with related conditions. We believe that our technology will provide a competitive advantage in the fluid management market by providing improved clinical benefits and reducing the cost of care relative to other treatment alternatives.

Our strategic focus is to demonstrate a strong business model by driving revenue growth. Growing revenue is the key metric employees, shareholders and potential investors will use to judge our performance. In addition to revenues’ contribution to funding operations, revenue growth demonstrates a workable business model and proves a successful business turn-around. Management has identified five critical actions to drive revenue: (i) commercial execution; (ii) enhance product offerings; (iii) demonstrate health economic advantages; (iv) provide important new clinical evidence; and (v) increase partnerships with key opinion leading physicians.

Commercial Execution Strategy – We have allocated, and plan to continue to allocate, resources to aggressively build sales and marketing strength and grow the worldwide market for the Aquadex FlexFlow system. In the third quarter of 2017, we increased our direct sales force by six employees and plan to further expand our direct sales force in 2018. Our trained sales team will focus on sales penetration in large hospital accounts. The Aquadex FlexFlow system can be used in large hospital in multiple areas, including: the emergency department, the heart failure telemetry floor, the intensive care unit, and the coronary care unit. In addition to expending our direct sales force, we are implementing high quality customer service support systems and technical servicing to increase support to customers. We have also initiated international distribution and support of our products by entering into a distribution and service provider agreement with APC Cardiovascular Ltd., a distributor based in the United Kingdom.

Enhance Product Offering Strategy – We intend to develop products and product enhancements to improve performance and customer satisfaction. We have several projects currently underway to enhance product performance. We plan to introduce a new peripheral access catheter and enhance the functionality of the hematocrit sensor that is part of the Aquadex FlexFlow system console. We also are working to identify or develop a diagnostic tool for physicians to use during an Aquapheresis therapy to more precisely determine the amount of excess fluid to be removed, the rate of ultrafiltration, and when to stop therapy as dry weight is approached.

Health Economics Strategy – We plan to develop clinical trial evidence regarding the impact of ultrafiltration on hospital lengths of stay and rehospitalizations of patients with fluid overload. We plan to publish information on the budgetary impacts to hospitals that adopt the Aquadex FlexFlow system into their continuum of care when treating critical heart failure patients with fluid overload in whom diuretic therapy has failed.

New Clinical Evidence Strategy – We plan to expand the body of clinical evidence for Aquapheresis and the Aquadex FlexFlow system to drive adoption and support reimbursement. We plan to initiate an ultrafiltration mechanism of action clinical study to provide scientific evidence on how ultrafiltration provides safe clinical results

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without causing clinically significant harm to the kidneys. We also plan to initiate a registry to build individual account evidence sets, identify use patterns, and attain customer feedback to support marketing claims regarding clinical efficacy demonstrating weight reduction, reduced length of hospital stays, and reduced readmission rates.

Key Opinion Leaders Strategy – We plan to partner with key opinion leaders to advance medical understanding of the ultrafiltration as a therapy for treating fluid overload. We have recruited a scientific advisory board comprised of six key opinion leading physicians to help us develop and implement both the mechanistic clinical study and the registry. We are partnering with the Cardio Renal Society of America in a leadership role and increasing our involvement with the Heart Failure Society of America. In addition, we are working with several physicians that are implementing hospital observation unit use of the Aquadex FlexFlow system to provide outpatient care for patients that are fluid overloaded but may not require hospitalization.

Sales and Marketing

As of October 31, 2017, we had 15 full-time employees in sales and marketing. During the third quarter of 2017, we hired and trained six sales personnel with extensive medical device sales experience. Our sales force includes therapy development managers as well as field clinical engineers who provide training, technical and other support services to our customers. Since the acquisition of the Aquadex Business from Baxter in August 2016, our direct sales force has focused on reengaging hospital accounts that ordered Aquadex Blood Sets in prior years, re-educating customers on the therapy and assessing each hospital’s use of the Aquadex FlexFlow system to gain additional opportunity for increased utilization. We plan to grow the sales and marketing organization as necessary to support future growth.

Our sales representatives implement consumer marketing programs and provide physicians and nurses with patient educational materials. We also market to potential referral source clinicians in order to build awareness.

Clinical Experience

Several large-scale, multi-center, randomized, controlled trials have evaluated the use of ultrafiltration using the Aquadex FlexFlow system patients in patients with acute decompensated heart failure compared to standard-of-care treatment with intravenous diuretics. These trials followed early-stage studies which primarily focused on safety of ultrafiltration treatment with the Aquadex FlexFlow system.

The UNLOAD trial enrolled 200 patients and showed that average weight and fluid loss were greater in the ultrafiltration group 48 hours following randomization. No differences were noted in symptoms of dyspnea between the groups. In addition, through 90 days of follow-up, the ultrafiltration group experienced fewer re-hospitalizations for heart failure, while renal function assessed by serum creatinine level was not significantly different between the groups.

The CARESS trial studied 188 randomized acute decompensated heart failure patients over the course of 96 hours and found no difference in weight loss and an increase in creatinine level relative to the control group treated with intravenous diuretics. The creatinine increase was interpreted as a sign of potential worsening renal function in the ultrafiltration group. Results of CARESS have been criticized on several grounds, particularly that trial results were impacted by centers unfamiliar with the use of ultrafiltration therapy and that the diuretic regimen employed was not representative of standard-of-care. In addition, a recent analysis of the DOSE trial to explore the putative link between short-term changes in creatinine level and outcome in acute decompensated heart failure has found that the intragroup difference observed in CARESS does not fall into a range associated with adverse long-term outcomes including death, re-hospitalization or visits to the emergency department. Such events were examined in CARESS over 60 days and no differences were detected between the groups.

Disparate results between UNLOAD and CARESS led to initiation of the AVOID trial. AVOID was designed to prospectively address the question of patient outcomes when treated with ultrafiltration versus intravenous diuretics for acute decompensated heart failure. Trial design assumptions indicated that 810 patients would need to be randomized to achieve adequate statistical power. However, the study was terminated at 224 patients for business reasons by Baxter. Despite being underpowered, the results of AVOID indicated distinct trends toward reduced composite heart-failure events in the ultrafiltration group over 90 days. In addition, pre-specified secondary endpoints demonstrated significant reductions in heart failure re-hospitalization at 30 days. No significant differences were

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observed in creatinine level between the groups, although a trend toward increase may have been present at 48 hours. In totality, AVOID recapitulated the results of both UNLOAD and CARESS while providing evidence that had AVOID been followed to completion it would likely have met its primary endpoint of improved outcome in acute decompensated heart failure patients.

We anticipate conducting additional clinical studies to provide further evidence of the safety and effectiveness of the Aquadex FlexFlow system and to support obtaining a specific reimbursement code for Aquapheresis therapy.

Other uses of ultrafiltration with the Aquadex FlexFlow system have not been studied extensively. Case studies and case series demonstrating the use of ultrafiltration in the maintenance of outpatient chronic heart failure have been published, but there has been no prospective, systematic evaluation of ultrafiltration versus standard-of-care for this population. Other potential uses also largely remain to be formally evaluated.

Research and Development

Research and development costs include activities related to research, development, design, testing and manufacturing of improvement to the Aquadex FlexFlow system and potential related products. The Aquadex FlexFlow system software will require periodic modifications for feature additions and performance improvements. We will make such design changes as needed based on pro-active and reactive mechanisms. Research and development costs also include expenses related to clinical research. We may sponsor or conduct additional clinical research related to the Aquadex FlexFlow system to enhance understanding of the product and its use.

Manufacturers and Suppliers

In connection with the acquisition of the Aquadex Business, we entered into a commercial manufacturing and supply agreement with Baxter, which requires Baxter to manufacture Aquadex Blood Sets and Aquadex Catheters for a period of 18 months following our acquisition of the Aquadex Business. In May 2017, we notified Baxter that we intended to have it cease the manufacturing Aquadex product effective as of June 30, 2017. We completed the transfer of manufacturing equipment for the Aquadex Business that we purchased from Baxter to our manufacturing facility in July 2017. We expect to begin manufacturing Aquadex FlexFlow products in-house in the fourth quarter of 2017. We will continue to purchase raw materials and finished goods from an indirect subsidiary of Baxter until February 1, 2018.

Intellectual Property

We have established an intellectual property portfolio through which we seek to protect our system and technology. In connection with our acquisition of the Aquadex Business, we entered into a patent license agreement with Baxter pursuant to which we obtained, for no additional consideration, a world-wide license to 49 exclusively licensed and 9 non-exclusively licensed patents used in connection with the Aquadex FlexFlow system to make, have made, use, sell, offer for sale and import, the Aquadex FlexFlow system in the “field of use.” The “field of use” is defined as system and apparatus only capable of performing isolated ultrafiltration for treatment of congestive heart failure, and methods to the extent used therein (excluding system, apparatus, or methods performing any kind of renal therapy or dialysis and/or any system capable of providing substitution fluid). The license is exclusive, with respect to some patents, and non-exclusive, with respect to other patents. Under the patent license agreement, Baxter has agreed to use commercially reasonable efforts to continue maintenance of seven “required maintenance patents,” and we have agreed to reimburse Baxter for all fees, costs, and expenses (internal or external) incurred by Baxter in connection with such continued maintenance. The rights granted to us under the patent license agreement will automatically revert to Baxter in the event we cease operation of the Aquadex Business or we file for, or have filed against us, or otherwise undertake any bankruptcy, reorganization, insolvency, moratorium, or other similar proceeding. For two years following the closing, the patent license agreement is not assignable by us (including in connection with a change of control) without Baxter’s prior written consent. We estimate that the patents licensed from Baxter will expire between approximately 2020 and 2025.

In addition, as of September 30, 2017, we owned 40 issued patents and 5 pending patent applications in the United States and in foreign jurisdictions related to our C-Pulse System and had 2 pending applications for neuromodulation. We estimate that most of our currently issued U.S. patents will expire between approximately 2021 and 2027. Given the strategic refocus away from C-Pulse and towards the Aquadex FlexFlow system, we have chosen to limit the maintenance of issued C-Pulse related patents to those innovations that are of the highest value. Further, we have elected to emphasize a few of the most critical jurisdictions rather than maintain the earlier approach that

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involved multiple countries. Our pending and future patent applications may not issue as patents or, if issued, may not issue in a form that will provide us any financial return. Even if issued, existing or future patents may be challenged, narrowed, invalidated or circumvented, which could limit our ability to obtain commercial benefits from them.

We have developed technical knowledge that, although non-patentable, we consider to be significant in enabling us to compete. It is our policy to enter into confidentiality agreements with each of our employees and consultants prohibiting the disclosure of any confidential information or trade secrets. In addition, these agreements provide that any inventions or discoveries by employees and consultants relating to our business will be assigned to us and become our sole property.

Despite our patent rights and policies with regard to confidential information, trade secrets and inventions, we may be subject to challenges to the validity of our patents, claims that our system infringes the patent rights of others and the disclosure of our confidential information or trade secrets. These and other risks are described more fully under the heading “Risk Factors—Risks Relating to our Intellectual Property”.

At this time we are not a party to any material legal proceedings that relate to patents or proprietary rights.

Competition

Competition from medical device companies and medical device divisions of health care companies, pharmaceutical companies and gene- and cell-based therapies is intense and expected to increase. The vast majority of heart failure patients with fluid overload receive pharmacological treatment (diuretics) as a standard of care. There are no direct competitors for the Aquadex FlexFlow system in the U.S., other than diuretics. Other ultrafiltration systems, such as Baxter’s Prismaflex, a filter-based device that is approved for continuous renal replacement therapy for patients weighing 20kg or more with acute renal failure and/or fluid overload, represent indirect competitors.

Our ability to compete effectively depends upon our ability to distinguish Aquadex FlexFlow system from our competitors and their products. Factors affecting our competitive position include:

Financial resources;
Product performance and design;
Risk management;
Product safety;
Acceptance of our system in the marketplace;
Sales, marketing and distribution capabilities;
Manufacturing and assembly costs;
Pricing of our system and of our competitors’ products;
The availability of reimbursement from government and private health insurers;
Success and timing of new product development and introductions;
Regulatory approvals; and
Intellectual property protection.

Third-Party Reimbursement

In the United States, the Aquadex FlexFlow products are purchased primarily by customers, such as hospitals or other health care providers. Customers bill various third-party payers for covered Aquadex FlexFlow services provided to patients. These payers, which include federal health care programs (e.g., Medicare and Medicaid), state health care programs, private health insurance companies, and managed care organizations, then reimburse our customers based on established payment formulas that take into account part or all of the cost associated with these devices and the related procedures performed.

While the agency responsible for administering the Medicare program, the Centers for Medicare and Medicaid Services has not issued a favorable national coverage for ultrafiltration using the Aquadex FlexFlow system, a

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number of private insurers have approved reimbursement for Aquadex FlexFlow system use for specific indications and points of service. In addition, patients and providers may seek insurance coverage on a case-by-case basis.

We are exploring the ability to increase the range of coverage for uses of Aquadex FlexFlow therapies, such as use in the outpatient setting and other indicated uses under its approved labeling.

Legislative proposals can substantially change the way health care is financed by both governmental and private insurers and may negatively impact payment rates for our system. Also, from time to time, there are a number of legislative, regulatory and other proposals both at the federal and state levels that may impact payment rates for our system. It remains uncertain whether there will be any future changes that will be proposed or finalized and what effect, if any, such legislation or regulations would have on our business. However, in the United States and international markets, we expect that both government and third-party payers will continue to attempt to contain or reduce the costs of health care by challenging the prices charged, or deny coverage, for health care products and services.

Government Regulations

Regulation by governmental authorities in the United States and foreign countries is a significant factor in the manufacture and marketing of our current system and any future products and in our ongoing research and development activities. In particular, medical devices are subject to rigorous pre-clinical testing as a condition of approval by the FDA and by similar authorities in foreign countries. Any proposed products will require regulatory approval prior to commercialization.

United States

The FDC Act and the FDA’s implementing regulations govern medical device design and development, preclinical and clinical testing, premarket clearance or approval, registration and listing, manufacturing, labeling, storage, advertising and promotion, sales and distribution, export and import, and post market surveillance. Medical devices and their manufacturers are also subject to inspection by the FDA. The FDC Act, supplemented by other federal and state laws, also provides civil and criminal penalties for violations of its provisions. We manufacture and market medical devices that are regulated by the FDA, comparable state agencies and regulatory bodies in other countries.

Unless an exemption applies, each medical device we wish to commercially distribute in the U.S. will require marketing authorization from the FDA prior to distribution. The two primary types of FDA marketing authorization are premarket notification (also called 510(k) clearance) and premarket approval (PMA). The type of marketing authorization applicable to a device—510(k) clearance or PMA—is generally linked to classification of the device. The FDA classifies medical devices into one of three classes (Class I, II or III) based on the degree of risk the FDA determines to be associated with a device and the extent of control deemed necessary to ensure the device’s safety and effectiveness. Devices requiring fewer controls because they are deemed to pose lower risk are placed in Class I or II. Class I devices are deemed to pose the least risk and are subject only to general controls applicable to all devices, such as requirements for device labeling, premarket notification, and adherence to the FDA’s current good manufacturing practice requirements, as reflected in its Quality System Regulation (“QSR”). Class II devices are intermediate risk devices that are subject to general controls and may also be subject to special controls such as performance standards, product-specific guidance documents, special labeling requirements, patient registries or post market surveillance. Class III devices are those for which insufficient information exists to assure safety and effectiveness solely through general or special controls, and include life-sustaining, life-supporting or implantable devices, and devices not “substantially equivalent” to a device that is already legally marketed.

Most Class I devices and some Class II devices are exempted by regulation from the 510(k) clearance requirement and can be marketed without prior authorization from FDA. Class I and Class II devices that have not been exempted are eligible for marketing through the 510(k) clearance pathway. By contrast, devices placed in Class III generally require PMA prior to commercial marketing. The PMA process is generally more stringent, time-consuming and expensive than the 510(k) clearance process.

510(k) Clearance. To obtain 510(k) clearance for a medical device, an applicant must submit a premarket notification to the FDA demonstrating that the device is “substantially equivalent” to a predicate device legally marketed in the United States. A device is substantially equivalent if, with respect to the predicate device, it has the same intended use and has either (i) the same technological characteristics or (ii) different technological

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characteristics and the information submitted demonstrates that the device is as safe and effective as a legally marketed device and does not raise different questions of safety or effectiveness. A showing of substantial equivalence sometimes, but not always, requires clinical data. Generally, the 510(k) clearance process can exceed 90 days and may extend to a year or more.

After a device has received 510(k) clearance for a specific intended use, any modification that could significantly affect its safety or effectiveness, such as a significant change in the design, materials, method of manufacture or intended use, will require a new 510(k) clearance or PMA (if the device as modified is not substantially equivalent to a legally marketed predicate device). The determination as to whether new authorization is needed is initially left to the manufacturer; however, the FDA may review this determination to evaluate the regulatory status of the modified product at any time and may require the manufacturer to cease marketing the modified device until 510(k) clearance or PMA is obtained. The manufacturer may also be subject to significant regulatory fines or penalties.

The Aquadex FlexFlow system was granted FDA 510(k) clearance for commercial use on June 3, 2002. Additional 510(k) clearances have been received for the Aquadex FlexFlow system in subsequent years.

Clinical Trials. To obtain FDA approval to market the C-Pulse System, clinical trials would be required to support a PMA application. We have halted clinical trials related to the C-Pulse System. These trials generally require submission of an application for an IDE to the FDA. The IDE application must be supported by appropriate data, such as animal and laboratory testing results, showing that it is safe to test the device in humans and that the testing protocol is scientifically sound. The IDE application must be approved in advance by the FDA for a specified number of patients, unless the product is deemed a non-significant risk device and eligible for more abbreviated IDE requirements. Generally, clinical trials for a significant risk device may begin once the IDE application is approved by the FDA and the study protocol and informed consent are approved by appropriate institutional review boards at the clinical trial sites.

FDA approval of an IDE allows clinical testing to go forward but does not bind the FDA to accept the results of the trial as sufficient to prove the product’s safety and efficacy, even if the trial meets its intended success criteria. With certain exceptions, changes made to an investigational plan after an IDE is approved must be submitted in an IDE supplement and approved by FDA (and by governing institutional review boards when appropriate) prior to implementation.

All clinical trials must be conducted in accordance with regulations and requirements collectively known as Good Clinical Practice. Good clinical practices include the FDA’s IDE regulations, which describe the conduct of clinical trials with medical devices, including the recordkeeping, reporting and monitoring responsibilities of sponsors and investigators, and labeling of investigational devices. They also prohibit promotion, test marketing or commercialization of an investigational device and any representation that such a device is safe or effective for the purposes being investigated. Good Clinical Practices also include the FDA’s regulations for institutional review board approval and for protection of human subjects (such as informed consent), as well as disclosure of financial interests by clinical investigators.

Required records and reports are subject to inspection by the FDA. The results of clinical testing may be unfavorable or, even if the intended safety and efficacy success criteria are achieved, may not be considered sufficient for the FDA to grant approval or clearance of a product. The commencement or completion of any clinical trials may be delayed or halted, or be inadequate to support approval of a PMA application or clearance of a premarket notification for numerous reasons, including, but not limited to, the following:

the FDA or other regulatory authorities do not approve a clinical trial protocol or a clinical trial (or a change to a previously approved protocol or trial that requires approval), or place a clinical trial on hold;
patients do not enroll in clinical trials or follow up at the rate expected;
patients do not comply with trial protocols or experience greater than expected adverse side effects;
institutional review boards and third-party clinical investigators may delay or reject the trial protocol or changes to the trial protocol;
third-party clinical investigators decline to participate in a trial or do not perform a trial on the anticipated schedule or consistent with the clinical trial protocol, investigator agreements, good clinical practices or other FDA requirements;

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third-party organizations do not perform data collection and analysis in a timely or accurate manner;
regulatory inspections of the clinical trials or manufacturing facilities, which may, among other things, require corrective action or suspension or termination of the clinical trials;
changes in governmental regulations or administrative actions;
the interim or final results of the clinical trial are inconclusive or unfavorable as to safety or efficacy; or
the FDA concludes that the trial design is inadequate to demonstrate safety and efficacy.

Continuing Regulation. After a device is cleared or approved for use and placed in commercial distribution, numerous regulatory requirements continue to apply. These include:

establishment registration and device listing upon the commencement of manufacturing;
the QSR, which requires manufacturers, including third-party manufacturers, to follow design, testing, control, documentation and other quality assurance procedures during medical device design and manufacturing processes;
labeling regulations, which prohibit the promotion of products for unapproved or “off-label” uses and impose other restrictions on labeling and promotional activities;
medical device reporting regulations, which require that manufacturers report to the FDA if a device may have caused or contributed to a death or serious injury or malfunctioned in a way that would likely cause or contribute to a death or serious injury if malfunctions were to recur;
corrections and removal reporting regulations, which require that manufacturers report to the FDA field corrections; and
product recalls or removals if undertaken to reduce a risk to health posed by the device or to remedy a violation of the FDC Act caused by the device that may present a risk to health.

In addition, the FDA may require a company to conduct post market surveillance studies or order it to establish and maintain a system for tracking its products through the chain of distribution to the patient level.

Failure to comply with applicable regulatory requirements, including those applicable to the conduct of clinical trials, can result in enforcement action by the FDA, which may lead to any of the following sanctions:

warning letters or untitled letters;
fines, injunctions and civil penalties;
product recall or seizure;
unanticipated expenditures;
delays in clearing or approving or refusal to clear or approve products;
withdrawal or suspension of FDA approval;
orders for physician notification or device repair, replacement or refund;
operating restrictions, partial suspension or total shutdown of production or clinical trials; or
criminal prosecution.

We and our contract manufacturers and suppliers are also required to manufacture our products in compliance with Current Good Manufacturing Practice requirements set forth in the QSR.

The QSR requires a quality system for the design, manufacture, packaging, labeling, storage, installation and servicing of marketed devices, and includes extensive requirements with respect to quality management and organization, device design, buildings, equipment, purchase and handling of components, production and process controls, packaging and labeling controls, device evaluation, distribution, installation, complaint handling, servicing and record keeping. The FDA enforces the QSR through periodic announced and unannounced inspections that may include the manufacturing facilities of subcontractors. If the FDA believes that we or any of our contract manufacturers or regulated suppliers is not in compliance with these requirements, it can shut down our

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manufacturing operations, require recall of our products, refuse to clear or approve new marketing applications, institute legal proceedings to detain or seize products, enjoin future violations or assess civil and criminal penalties against us or our officers or other employees. Any such action by the FDA would have a material adverse effect on our business.

Employees

As of October 31, 2017, we had 38 full-time employees and no part-time employees. None of our employees are covered by a collective bargaining agreement. We consider relations with our employees to be good.

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SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

The following table sets forth information regarding the beneficial ownership (as defined in Rule 13d-3 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”))Act) of our common stock as of October 31, 2017September 15, 2022 by (i) each of the directors and named executive officers, (ii) all of the directors and executive officers as a group, and (iii) to our knowledge, beneficial owners of more than 5% of our common stock. As of October 31, 2017,September 15, 2022, there were 625,79110,537,606 shares of our common stock outstanding. Unless otherwise indicated and subject to applicable community property laws, each owner has sole voting and investment powers with respect to the securities listed below.

Name of Beneficial Owner
Number of
Shares
Right to
Acquire(1)
Total
Aggregate
Percent of Class(2)
John L. Erb
 
5,771
 
 
5,489
 
 
11,260
 
 
1.78
%
Steve Brandt
 
71
 
 
1,497
 
 
1,568
 
 
 
*
Matthew E. Likens
 
71
 
 
1,497
 
 
1,568
 
 
 
*
Jon W. Salveson
 
69
 
 
1,556
 
 
1,625
 
 
 
*
Gregory D. Waller
 
74
 
 
1,537
 
 
1,611
 
 
 
*
Warren S. Watson
 
69
 
 
1,556
 
 
1,625
 
 
 
*
Claudia Drayton
 
37
 
 
180
 
 
217
 
 
 
*
All directors and executive officers as a group (8 persons)
 
6,162
 
 
13,312
 
 
19,474
 
 
3.05
%
Ki Yong Choi
36 Great Circle Drive
Mill Valley, CA 94941
 
86,573
(3)
 
 
 
86,573
 
 
13.83
%
Trend Discovery, LP
601 Cape Eleuthra Road
Bethany Beach, DE 19930
 
31,612
(4)
 
 
 
31,612
 
 
5.05
%
Name of Beneficial Owner
Number
of Shares
Right to
Acquire(1)
Total
Aggregate
Percent of
Class(2)
John L. Erb
385
56,038(3)
56,423
*%
Steve Brandt
17,176
17,176
*
Maria Rosa Costanzo, M.D.
Jon W. Salveson
17,208
17,208
*
Gregory D. Waller
17,223
17,223
*
Warren S. Watson
17,208
17,208
*
Nestor Jaramillo, Jr.
63,911
63,911
*
George Montague
20,845
20,845
*
Neil P. Ayotte
13,896
13,896
*
All current directors and executive officers as a group (9 persons)
385
223,505
223,890
2.1%
*
Less than one percent.
(1)
Except as otherwise described below, amounts reflect the number of shares that such holder could acquire through (i) the exercise of outstanding stock options, (ii) the vesting/settlement of outstanding RSUs, and (iii) the exercise of outstanding warrants to purchase common stock, and (iv) the conversion of outstanding Series F Preferred Stock, in each case within 60 days of October 31, 2017.after September 1, 2022.
(2)
Based on 625,79110,537,606 shares outstanding as of October 31, 2017.September 1, 2022.
(3)
(3)Based onConsists of (i) 15,338 shares issuable upon the Schedule 13D/A filed byexercise of outstanding stock options, (ii) 700 shares issuable upon the reporting person on September 20, 2017, as adjusted for the 1-for-20 reverse splitexercise of ouroutstanding warrants to purchase common stock that was effected after trading on October 12, 2017.and (iii) 40,000 shares issuable upon conversion of outstanding shares of Series F Convertible Preferred Stock (assuming all 100 shares of Series F Convertible Preferred Stock held by Mr. Erb are converted at once and rounded up to the nearest whole share).
(4)Based on the Schedule 13G filed by the reporting person on October 12, 2017, as adjusted for the 1-for-20 reverse split of our common stock that was effected after trading on October 12, 2017. The reporting person has sole voting and dispositive power with respect to 29,981 such shares.

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DESCRIPTION OF SECURITIES
Description of Units
We are offering 10,794,602 Class A Units, with each Class A Unit consisting of one share of common stock and a warrant to purchase one share of our common stock (together with the shares of common stock underlying such warrants) at an assumed public offering price of $0.58 per Class A Unit, the closing price of our common stock on September 27, 2022. Each warrant included in the Class A Units entitles its holder to purchase one share of common stock at an exercise price of $[   ].
We are also offering 7,196,401 Class B Units to purchasers who prefer not to beneficially own more than 4.99% (or, at the election of the purchaser, 9.99%) of our outstanding common stock following the consummation of this offering with each Class B Unit consisting of one share of Series I Preferred Stock, par value $0.0001 per share, convertible into one share of common stock, and a warrant to purchase one share of common stock (together with the shares of common stock underlying the Series I Preferred Stock and such warrants) at an assumed public offering price of $0.58 per Class B Unit, the closing price of our common stock on September 27, 2022. Each warrant included in the Class B Units entitles its holder to purchase one share of common stock at an exercise price of $[   ].
The securities of which the Units are composed (the “underlying securities”) are being sold in this offering only as part of the Units. However, the Class A Units and Class B Units will not be certificated and the underlying securities comprising such Units are immediately separable. Each underlying security purchased in this offering will be issued independent of each other underlying security and not as part of a Unit. Upon issuance, each underlying security may be transferred independent of any other underlying security, subject to applicable law and transfer restrictions.
Under Nasdaq listing rules, the warrants are not exercisable without stockholder approval. We intend to promptly seek, after the closing of this offering, stockholder approval for issuances of shares of common stock issuable upon exercise of the warrants.
Description of Warrants Included in the Units
The material terms and provisions of the warrants being offered pursuant to this prospectus are summarized below. This summary of some provisions of the warrants is not complete. For the complete terms of the warrants, you should refer to the form of warrant filed as an exhibit to the registration statement of which this prospectus is a part.
Pursuant to a warrant agency agreement between us and American Stock Transfer & Trust Company LLC, as warrant agent, subject to obtaining stockholder approval, the warrants will be issued in book-entry form and shall initially be represented only by one or more global warrants deposited with the warrant agent, as custodian on behalf of The Depository Trust Company, or DTC, and registered in the name of Cede & Co., a nominee of DTC, or as otherwise directed by DTC.
Each Class A Unit and each Class B Unit includes a warrant to purchase one share of our common stock at an exercise price of $[ ] per share at any time after stockholder approval for up to five years after the initial exercise date. The warrants issued in this offering will be governed by the terms of a global warrant held in book-entry form. The holder of a warrant will not be deemed a holder of our underlying common stock until the warrant is exercised, except as set forth in the warrants.
Subject to limited exceptions, a holder of warrants will not have the right to exercise any portion of its warrants if the holder (together with such holder’s affiliates, and any persons acting as a group together with such holder or any of such holder’s affiliates) would beneficially own a number of shares of common stock in excess of 4.99% (or, upon election by a holder prior to the issuance of any warrants, 9.99%) of the shares of our common stock then outstanding after giving effect to such exercise (the “Beneficial Ownership Limitation”); provided, however, that upon notice to the Company, the holder may increase or decrease the Beneficial Ownership Limitation, provided that in no event shall the Beneficial Ownership Limitation exceed 9.99% and any increase in the Beneficial Ownership Limitation will not be effective until 61 days following notice of such increase from the holder to us.
The exercise price and the number of shares issuable upon exercise of the warrants is subject to appropriate adjustment in the event of recapitalization events, stock dividends, stock splits, stock combinations,
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reclassifications, reorganizations or similar events affecting our common stock. The warrant holders must pay the exercise price in cash upon exercise of the warrants, unless such warrant holders are utilizing the cashless exercise provision of the warrants, which is only available in certain circumstances such as if the underlying shares are not registered with the SEC pursuant to an effective registration statement. We intend to use commercially reasonable efforts to have the registration statement of which this prospectus forms a part, effective when the warrants are exercised.
In addition, in the event we consummate a merger or consolidation with or into another person or other reorganization event in which our common shares are converted or exchanged for securities, cash or other property, or we sell, lease, license, assign, transfer, convey or otherwise dispose of all or substantially all of our assets or we or another person acquire 50% or more of our outstanding shares of common stock, then following such event, the holders of the warrants will be entitled to receive upon exercise of the warrants the same kind and amount of securities, cash or property which the holders would have received had they exercised the warrants immediately prior to such fundamental transaction. Any successor to us or surviving entity shall assume the obligations under the warrants.
Assuming Warrant Stockholder Approval, upon the holder’s exercise of a warrant, we will issue the shares of common stock issuable upon exercise of the warrant within the earlier of two trading days following our receipt of a notice of exercise or the standard settlement period for the market on which the common stock is then listed, provided that payment of the exercise price has been made (unless exercised via the “cashless” exercise provision).
Prior to the exercise of any warrants to purchase common stock, holders of the warrants will not have any of the rights of holders of the common stock purchasable upon exercise, including the right to vote, except as set forth therein.
Warrant holders may exercise warrants only if Warrant Stockholder Approval is obtained and if the issuance of the shares of common stock upon exercise of the warrants is covered by an effective registration statement, or an exemption from registration is available under the Securities Act and the securities laws of the state in which the holder resides. We intend to use commercially reasonable efforts to have the registration statement of which this prospectus forms a part effective when the warrants are exercised. The warrant holders must pay the exercise price in cash upon exercise of the warrants unless there is not an effective registration statement or, if required, there is not an effective state law registration or exemption covering the issuance of the shares underlying the warrants (in which case, the warrants may only be exercised via a “cashless” exercise provision).
The warrants are not exercisable without the Warrant Stockholder Approval. We intend to promptly seek stockholder approval for issuances of shares of common stock issuable upon exercise of the warrants but we cannot assure you that such approval will be obtained. The warrants expire on the five (5) year anniversary of the initial exercise date.
We do not intend to apply for listing of the warrants on any securities exchange or other trading system. Without an active trading market, the liquidity of the warrants will be limited.
Description of Capital Stock
Our authorized capital stock consists of 100,000,000 shares of common stock, par value $0.0001 per share, and 40,000,000 shares of preferred stock, par value $0.0001 per share, 30,000 of which are designated as Series A Junior Participating Preferred Stock and 127 of which are designated Series F Convertible Preferred Stock (the “Series F Preferred Stock”) as of June 30, 2022. Once shares of Series F Preferred Stock are converted, redeemed or reacquired by us, such shares shall resume the status of authorized but unissued shares of undesignated preferred stock.
As of September 15, 2022, we had (i) 10,537,606 outstanding shares of common stock, (ii) 127 outstanding shares of Series F Preferred Stock, which, at the currently applicable conversion price, would convert into 50,800 shares of common stock, subject to future adjustment, (iii) outstanding options to acquire 1,200,259 shares of our common stock, and (iv) outstanding warrants to purchase 1,630,627 shares of our common stock.
The following description summarizes the most important terms of our capital stock. Because it is only a summary, it does not contain all the information that may be important to you. For a complete description you should refer to our certificate of incorporation, bylaws and bylaws,certificate of designation of preferences, rights and
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limitations of Series F Preferred Stock, copies of which have been incorporated by reference herein,as exhibits to the registration statement of which this prospectus forms a part, and to the applicable provisions of the DGCL.
Dividends
Holders of our common stock are entitled to receive dividends when and as declared by our board of directors out of funds legally available.
Voting
Holders of our common stock are entitled to one vote for each share on each matter properly submitted to our stockholders for their vote; provided however, that except as otherwise required by law, holders of our common stock will not be entitled to vote on any amendment to our certificate of incorporation (including any certificate of designation filed with respect to any series of preferred stock) that relates solely to the terms of a series of outstanding preferred stock if the holders of such affected series are entitled, either separately or together as a class with the holders of one or more other such series, to vote thereon by law or pursuant to our certificate of incorporation (including any certificate of designation filed with respect to any series of preferred stock).
Subject to the voting restrictions described above, holders of our common stock may adopt, amend or repeal our bylaws and/or alter certain provisions of our certificate of incorporation with the affirmative vote of the holders of at least 66 2∕3% of the voting power of all of the then-outstanding shares of our capital stock entitled to vote generally in the election of directors, voting together as a single class, in addition to any vote of the holders of a class or series of our stock required by law or our certificate of incorporation. Those provisions of our certificate of incorporation that may be altered only by the super-majority vote described above relate to:
the number of directors on our board of directors, the classification of our board of directors and the terms of the members of our board of directors;
the limitations on removal of any of our directors described below under “Description of Securities –Anti-Takeover Effects of Certain Provisions of Our Certificate of Incorporation and Bylaws and Delaware General Corporation Law.Law;”
the ability of our directors to fill any vacancy on our board of directors by the affirmative vote of a majority of the directors then in office under certain circumstances;
the ability of our board of directors to adopt, amend or repeal our bylaws and the super-majority vote of our stockholders required to adopt, amend or repeal our bylaws described above;
the limitation on action of our stockholders by written action described below under “Description of Securities –-Anti-Takeover Effects of Certain Provisions of Our Certificate of Incorporation and Bylaws and Delaware Law;”
the choice of forum provision described below under “Description of Securities –Choice of Forum;”
the limitations on director liability and indemnification described below under the heading “Description of Securities –Limitation on Liability of Directors and Indemnification;” and
the super-majority voting requirement to amend our certificate of incorporation described above.
Conversion, Redemption and Preemptive Rights
Holders of our common stock do not have any conversion, redemption or preemptive rights pursuant to our organizational documents.
Liquidation, Dissolution and Winding-up
In the event of our liquidation, dissolution or winding up, holders of our common stock are entitled to share ratably in any assets remaining after the satisfaction in full of the prior rights of creditors and the aggregate of any liquidation preference pursuant to the terms of any certificate of designation filed with respect to any series of preferred stock, including our outstanding Series F Preferred Stock.
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Listing
Our common stock is listed on the Nasdaq Capital Market under the symbol “NUWE.” See “Prospectus Summary-Recent Developments” in this prospectus for important information about the listing of our common stock on the Nasdaq Capital Market.
Description of Preferred Stock
We may issue any class of preferred stock in any series. Our board of directors has the authority to establish and designate series, and to fix the number of shares included in each such series and to determine or alter for each such series, such voting powers, designation, preferences, and relative participating, optional, or other rights and such qualifications, limitations or restrictions thereof. Our board of directors is not restricted in repurchasing or redeeming such stock while there is any arrearage in the payment of dividends or sinking fund installments. Our board of directors is authorized to increase or decrease the number of shares of any series subsequent to the issuance of shares of that series, but not below the number of shares of such series then outstanding. The number of authorized shares of preferred stock may be increased or decreased, but not below the number of shares thereof then outstanding, by the affirmative vote of the holders of a majority of the common stock, without a vote of the holders of the preferred stock, or of any series thereof, unless a vote of any such holders is required pursuant to the terms of any certificate of designation filed with respect to any series of preferred stock.
Prior to issuance of shares of any series of preferred stock, our board of directors is required by Delaware law to adopt resolutions and file a certificate of designation with the Secretary of State of the State of Delaware. The certificate of designation fixes for each class or series the terms, preferences, conversion or other rights, voting powers, restrictions, limitations as to dividends or other distributions, qualifications and terms or conditions of redemption for each class or series. Any shares of preferred stock will, when issued, be fully paid and non-assessable.
Outstanding Series F Convertible Preferred Stock

Stock.Our Board hasboard of directors designated 10,00018,000 shares of preferred stock as Series F convertible preferred stock, $0.0001 par value. As of November 13, 2017,September 15, 2022, there were no127 shares of Series F preferred stock outstanding. Although there is no current intent to do so, our Board may, without stockholder approval, issue sharesPreferred Stock outstanding with a conversion price of an additional class or series of preferred stock with voting and conversion rights which could adversely affect the voting power of the holders of the common stock or the convertible preferred stock, except as prohibited by the certificate of designation of preferences, rights and limitations of Series F convertible preferred stock.

The following is a summary of the material terms of our Series F preferred stock. For more information, please refer to the certificate of designation of preferences, rights and limitations of Series F convertible preferred stock filed as an exhibit to the registration statement of which this prospectus is a part.

$2.50.

Liquidation.Upon any dissolution, liquidation or winding up, whether voluntary or involuntary, holders of Series F preferred stockPreferred Stock will be entitled to receive distributions out of our assets, whether capital or surplus, of an amount equal to $0.0001 per share of Series F preferred stockPreferred Stock before any distributions shall be made on the common stock or any series of preferred stock ranked junior to the Series F preferred stock, but after distributions shall be made on any outstanding Series E preferred stock and any of our existing or future indebtedness.

Preferred Stock.

Dividends.Holders of the Series F preferred stock will bePreferred Stock are entitled to receive dividends equal (on an “as converted to common stock” basis) to and in the same form as dividends actually paid on shares of our common stock when, as and if such dividends are paid on shares of our common stock. No other dividends will be paid on shares of Series F preferred stock.

Preferred Stock.

Conversion.Each share of Series F preferred stockPreferred Stock is convertible, at any time and from time to time at the option of the holder thereof, into that number of shares of common stock determined by dividing $1,000 by the conversion price of $$2.50 (subject to adjustment described below), which is 100% of the consolidated closing bid price of our common stock on The Nasdaq Capital Market on the date we entered into the underwriting agreement.. This right to convert is limited by the beneficial ownership limitation described below.

Forced Conversion. Subject to certain ownership limitations as described below and certain equity conditions being met, until such time that during any 20 of 30 consecutive trading days, the volume weighted average price of our common stock exceeds 300% of the conversion price and the daily dollar trading volume during such period exceeds $200,000 per trading day, we shall have the right to force the conversion of the Series F preferred stockPreferred Stock into common stock.

Beneficial Ownership Limitation.A holder shall have no right to convert any portion of Series F preferred stock,Preferred Stock, to the extent that, after giving effect to such conversion, such holder, together with such holder'sholder’s affiliates, and any persons acting as a group together with such holder or any such affiliate, would beneficially own in excess of 4.99% of the number of shares of common stock outstanding immediately after giving effect to the issuance of shares of common stock upon such conversion (subject to the right of the holder to increase such beneficial ownership limitation upon not less than 61 days prior notice provided that such limitation can never exceed 9.99% and such 61 day period cannot be waived). Beneficial ownership of the holder and its affiliates will be determined in accordance with Section 13(d) of the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder.Act. Holders of Series F preferred stockPreferred Stock who are subject to such beneficial ownership limitation are and will remain responsible for ensuring their own
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compliance with Regulation 13D-G promulgated under the Securities Exchange Act, of 1934, as amended, consistent with their individual facts and circumstances. In addition, pursuant to Rule 13d-3(d)(1)(i) promulgated under the Securities Exchange Act, of 1934, as amended, any person who acquires Series F preferred stockPreferred Stock with the purpose or effect of changing or influencing the control of our company, or in connection with or as a participant in any transaction having such purpose or effect, immediately upon such acquisition will be deemed to be the beneficial owner of the underlying common stock.

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Conversion Price Adjustment

Subsequent Equity Sales.Optional Redemption. Subject to the terms of the certificate of designation, the Company holds an option to redeem some or all the Series F Preferred Stock six months after its issuance date at a 200% premium to the stated value of the Series F Preferred Stock subject to the redemption, upon 30 days prior written notice to the holder of the Series F Preferred Stock. The Series F preferred stockPreferred Stock would be redeemed by the Company for cash.

Conversion Price Adjustment
Subsequent Equity Sales. The Series F Preferred Stock has full ratchet price based anti-dilution protection, subject to customary carve outs, in the event of a down-round financing at a price per share below the conversion price of the Series F preferred stock.Preferred Stock, including in this offering. If during any 20 of 30 consecutive trading days the volume weighted average price of our common stock exceeds 300% of the then-effective conversion price of the Series F preferred stockPreferred Stock and the daily dollar trading volume for each trading day during such period exceeds $200,000, the anti-dilution protection in the Series F preferred stockPreferred Stock will expire and cease to apply.

Stock Dividends and Stock Splits.If we pay a stock dividend or otherwise make a distribution payable in shares of common stock on shares of common stock or any other common stock equivalents, subdivide or combine outstanding common stock, or reclassify common stock, the conversion price will be adjusted by multiplying the then conversion price by a fraction, the numerator of which shall be the number of shares of common stock outstanding immediately before such event, and the denominator of which shall be the number of shares outstanding immediately after such event.

Fundamental Transaction. If we effect a fundamental transaction in which we are the surviving entity, then upon any subsequent conversion of Series F preferred stock,Preferred Stock, the holder thereof shall have the right to receive, for each share of common stock that would have been issuable upon such conversion immediately prior to the occurrence of such fundamental transaction, the number of shares of our common stock and any additional consideration receivable as a result of such fundamental transaction by a holder of the number of shares of common stock into which Series F preferred stockPreferred Stock is convertible immediately prior to such fundamental transaction. If we effect a fundamental transaction in which we are not the surviving entity or a reverse merger in which we are the surviving entity, then the surviving entity shall purchase the outstanding Series F preferred stockPreferred Stock by paying and issuing, in the event that such consideration given to common stockholders is non-cash consideration, as the case may be, to such holder (or canceling such holder'sholder’s outstanding Series F preferred stockPreferred Stock and converting it into the right to receive) an amount equal to the greater of (i) the cash consideration plus the non-cash consideration (in the form issuable to the holders of common stock) per share of the common stock in the fundamental transaction multiplied by the number of conversion shares underlying the shares of Series F preferred stockPreferred Stock held by the holder on the date of the consummation of the fundamental transaction or (ii) 130% of the stated value of the Series F preferred stockPreferred Stock then outstanding on the date immediately prior to the consummation of the fundamental transaction. Such amount shall be paid in the same form and mix (be it securities, cash or property, or any combination of the foregoing) as the consideration received by the common stock in such fundamental transaction. A fundamental transaction means: (i) our merger or consolidation with or into another entity, (ii) any sale or other disposition of all or substantially all of our assets in one transaction or a series of related transactions, (iii) any tender offer or exchange offer allowing holders of our common stock to tender or exchange their shares for cash, property or securities, and has been accepted by the holders of 50% or more of the outstanding common stock, (iv) any reclassification of our common stock or any compulsory share exchange by which common stock is effectively converted into or exchanged for other securities, cash or property, or (v) consummation of a stock or share purchase agreement or other business combination with another person whereby such other person acquires more than 50% of the outstanding shares of common stock.

Voting Rights, etc.Except as otherwise provided in the Series F preferred stockPreferred Stock certificate of designation or required by law, the Series F preferred stockPreferred Stock has no voting rights. However, as long as any shares of Series F preferred stockPreferred Stock are outstanding, we may not, without the affirmative vote of the holders of a majority of the then
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outstanding shares of the Series F preferred stock,Preferred Stock, alter or change adversely the powers, preferences or rights given to the Series F preferred stock,Preferred Stock, amend its certificate of designation, amend our certificate of incorporation or other charter documents in any manner that adversely affects any rights of the holders, increase the number of authorized shares of Series F preferred stock,Preferred Stock, or enter into any agreement with respect to any of the foregoing. The Series F preferred stockPreferred Stock certificate of designation provides that if any party commences an action or proceeding to enforce any provisions of the certificate of designation, then the prevailing party in such action or proceeding shall be reimbursed by the other party for its attorneys'attorneys’ fees and other costs and expenses incurred in the investigation, preparation and prosecution of such action or proceeding. This provision may, under certain circumstances, be inconsistent with federal securities laws and Delaware general corporation law.

DGCL.

Fractional Shares.No fractional shares of common stock will be issued upon conversion of Series F preferred stock.Preferred Stock. Rather, we shall, at our election, either pay a cash adjustment in respect of such final fraction in an amount equal to such fraction multiplied by the conversion price or round up to the next whole share.

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The Series F preferred stock will bePreferred Stock was issued in book-entry form under a preferred stock agent agreement between American Stock Transfer & Trust as preferred stock agent, and us, and shall initially be represented by one or more book-entry certificates deposited with The Depository Trust Company, or DTC, and registered in the name of Cede & Co., a nominee of DTC, or as otherwise directed by DTC. There is no established public trading market for the Series F preferred stockPreferred Stock, and we do not expect a market to develop. We do not plan on applying to list the Series F preferred stockPreferred Stock is not listed on Thethe Nasdaq Capital Market, any other national securities exchange or any other nationally recognized trading system.

DescriptionSeries I Convertible Preferred Stock Being Offered Pursuant to this Prospectus. Our board of Warrants We Are Offering In This Offering

directors has designated [] shares of preferred stock as Series I convertible preferred stock, $0.0001 par value (“Series I Preferred Stock”), none of which are issued and outstanding prior to this offering. Although there is no current intent to do so, our board of directors may, without stockholder approval, issue shares of an additional class or series of preferred stock with voting and conversion rights which could adversely affect the voting power of the holders of the common stock or the convertible preferred stock, except as prohibited by the certificate of designation of preferences, rights and limitations of Series I Preferred Stock.

The following is a summary of the material terms and provisions of the warrants being offered pursuant to this prospectus are summarized below. This summary of some provisions of the warrants is not complete.our Series I Preferred Stock. For the complete terms of the warrants, you shouldmore information, please refer to the formcertificate of warrantdesignation of preferences, rights and limitations of Series I Preferred Stock to be filed as an exhibit to the registration statement of which this prospectus is a part.

Pursuant

Liquidation. Upon any dissolution, liquidation or winding up, whether voluntary or involuntary, the holders of Series I Preferred Stock are entitled to receive, pari passu with the holders of common stock (on an as-converted basis), out of the assets available for distribution to stockholders, an amount equal to such amount per share as would have been payable had all shares of Series I Preferred Stock been converted into common stock immediately before such liquidation, dissolution or winding up, without giving effect to any limitation on conversion as a warrant agencyresult of the Beneficial Ownership Limitation, as described below.
Dividends. Holders of the Series I Preferred Stock will be entitled to receive dividends equal (on an “as converted to common stock” basis) to and in the same form as dividends actually paid on shares of our common stock when, as and if such dividends are paid on shares of our common stock. No other dividends will be paid on shares of Series I Preferred Stock.
Conversion. Each share of Series I Preferred Stock is convertible, at any time and from time to time at the option of the holder thereof, into one share of common stock (subject to adjustment described below). This right to convert is limited by the beneficial ownership limitation described below.
Forced Conversion. Subject to certain ownership limitations as described below and certain equity conditions being met, until such time that during any 20 of 30 consecutive trading days, the volume weighted average price of our common stock exceeds 300% of the conversion price and the daily dollar trading volume during such period exceeds $200,000 per trading day, we shall have the right to force the conversion of the Series I Preferred Stock into common stock.
Beneficial Ownership Limitation. A holder shall have no right to convert any portion of Series I Preferred Stock, to the extent that, after giving effect to such conversion, such holder, together with such holder’s affiliates, and any persons acting as a group together with such holder or any such affiliate, would beneficially own in excess of 4.99% (or, upon the election by a holder prior to the issuance of any shares of Series I Preferred Stock, 9.99%) of the number of shares of common stock outstanding immediately after giving effect to the issuance of
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shares of common stock upon such conversion (subject to the right of the holder to increase such beneficial ownership limitation upon not less than 61 days prior notice provided that such limitation can never exceed 9.99% and such 61 day period cannot be waived). Beneficial ownership of the holder and its affiliates will be determined in accordance with Section 13(d) of the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder. Holders of Series I Preferred Stock who are subject to such beneficial ownership limitation are and will remain responsible for ensuring their own compliance with Regulation 13D-G promulgated under the Securities Exchange Act of 1934, as amended, consistent with their individual facts and circumstances. In addition, pursuant to Rule 13d-3(d)(1)(i) promulgated under the Securities Exchange Act of 1934, as amended, any person who acquires Series I Preferred Stock with the purpose or effect of changing or influencing the control of our company, or in connection with or as a participant in any transaction having such purpose or effect, immediately upon such acquisition will be deemed to be the beneficial owner of the underlying common stock.
Conversion Price Adjustment
Stock Dividends and Stock Splits. If we pay a stock dividend or otherwise make a distribution payable in shares of common stock on shares of common stock or any other common stock equivalents, subdivide or combine outstanding common stock, or reclassify common stock, the conversion price will be adjusted by multiplying the then conversion price by a fraction, the numerator of which shall be the number of shares of common stock outstanding immediately before such event, and the denominator of which shall be the number of shares outstanding immediately after such event.
Fundamental Transaction. If we effect a fundamental transaction in which we are the surviving entity, then upon any subsequent conversion of Series I Preferred Stock, the holder thereof shall have the right to receive, for each share of common stock that would have been issuable upon such conversion immediately prior to the occurrence of such fundamental transaction, the number of shares of our common stock and any additional consideration receivable as a result of such fundamental transaction by a holder of the number of shares of common stock into which Series I Preferred Stock is convertible immediately prior to such fundamental transaction. A fundamental transaction means: (i) our merger or consolidation with or into another entity, (ii) any sale or other disposition of all or substantially all of our assets in one transaction or a series of related transactions, (iii) any tender offer or exchange offer allowing holders of our common stock to tender or exchange their shares for cash, property or securities, and has been accepted by the holders of 50% or more of the outstanding common stock (iv) any reclassification of our common stock or any compulsory share exchange by which common stock is effectively converted into or exchanged for other securities, cash or property, or (v) consummation of a stock or share purchase agreement between usor other business combination with another person whereby such other person acquires more than 50% of the outstanding shares of common stock.
Voting Rights, etc. Except as otherwise provided in the Series I Preferred Stock certificate of designation or required by law, the Series I Preferred Stock has no voting rights. However, as long as any shares of Series I Preferred Stock are outstanding, we may not, without the affirmative vote of the holders of a majority of the then outstanding shares of the Series I Preferred Stock, alter or change adversely the powers, preferences or rights given to the Series I Preferred Stock, amend its certificate of designation, amend our certificate of incorporation or other charter documents in any manner that adversely affects any rights of the holders, increase the number of authorized shares of Series I Preferred Stock, or enter into any agreement with respect to any of the foregoing. The Series I Preferred Stock certificate of designation provides that if any party commences an action or proceeding to enforce any provisions of the certificate of designation, then the prevailing party in such action or proceeding shall be reimbursed by the other party for its attorneys’ fees and Americanother costs and expenses incurred in the investigation, preparation and prosecution of such action or proceeding. This provision may, under certain circumstances, be inconsistent with federal securities laws and Delaware general corporation law.
Fractional Shares. No fractional shares of common stock will be issued upon conversion of Series I Preferred Stock. Rather, we shall, at our election, either pay a cash adjustment in respect of such final fraction in an amount equal to such fraction multiplied by the conversion price or round up to the next whole share.
The Series I Preferred Stock Transfer & Trust Company LLC, as warrant agent, the warrants will be issued in book-entry form under a preferred stock agent agreement between American Stock Transfer & Trust as preferred stock agent, and us, and shall initially be represented only by one or more global warrantsbook-entry certificates deposited with the warrant agent, as custodian on behalf of The Depository Trust Company, or DTC, and registered in the name of Cede & Co., a nominee of DTC, or as otherwise directed by DTC.

Each share of Series F convertible preferred stock will be issued with: (a) the number of warrants equal to 100% of the number of shares of our common stock initially issuable upon conversion of the share of Series F convertible preferred stock, which will be immediately exercisable and expire on the first anniversary of the date of issuance (the “Series 1 Warrants”), and (b) the number of warrants equal to 100% of the number of shares of our common stock initially issuable upon conversion of the shares of Series F convertible preferred stock, which will be immediately exercisable and expire on the seventh anniversary of the date of issuance (the “Series 2 Warrants”). Each whole warrant There is exercisable to purchase one share of our common stock at an exercise price of $[___] per share at any time prior to expiration. The warrants issued in this offering will each be governed by the terms of a global warrant certificate deposited with DTC. The holder of a warrant will not be deemed a holder of our underlying common stock until the warrant is exercised, except as set forth in the warrant.

Subject to limited exceptions, a holder of warrants will not have the right to exercise any portion of its warrants if the holder (together with such holder’s affiliates, and any persons acting as a group together with such holder or any of such holder’s affiliates) would beneficially own a number of shares of common stock in excess of 4.99% (or, at the election of the holder, 9.99%) of the shares of our common stock then outstanding after giving effect to such exercise (the “Beneficial Ownership Limitation”); provided, however, that upon notice to the Company, the holder may increase or decrease the Beneficial Ownership Limitation, provided that in no event shall the Beneficial Ownership Limitation exceed 9.99% and any increase in the Beneficial Ownership Limitation will not be effective until 61 days following notice of such increase from the holder to us.

The exercise price and the number of shares issuable upon exercise of the warrants is subject to appropriate adjustment in the event of recapitalization events, stock dividends, stock splits, stock combinations, reclassifications, reorganizations or similar events affecting our common stock. The warrant holders must pay the exercise price in cash upon exercise of the warrants, unless such warrant holders are utilizing the cashless exercise provision of the warrants, which is only available in certain circumstances such as if the underlying shares are not registered with the SEC pursuant to an effective registration statement. We intend to use commercially reasonable efforts to have the registration statement of which this prospectus forms a part, effective when the warrants are exercised.

In addition, in the event we consummate a merger or consolidation with or into another person or other reorganization event in which our common shares are converted or exchanged for securities, cash or other property, or we sell, lease, license, assign, transfer, convey or otherwise dispose of all or substantially all of our assets or we or another person acquire 50% or more of our outstanding shares of common stock, then following such event, the holders of the warrants will be entitled to receive upon exercise of the warrants the same kind and amount of securities, cash or property which the holders would have received had they exercised the warrants immediately prior to such fundamental transaction. Any successor to us or surviving entity shall assume the obligations under the warrants. Further, as more fully described in the warrants, in the event of certain fundamental transactions, the holders of the warrants will be entitled to receive consideration in an amount equal to the Black Scholes value of the warrants on the date of consummation of such transaction.

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Upon the holder’s exercise of a warrant, we will issue the shares of common stock issuable upon exercise of the warrant within the earlier of three

trading days following our receipt of a notice of exercise or the standard settlement periodmarket for the Series I Preferred Stock and we do not expect a market on which the common stock is then listed, provided that payment of the exercise price has been made (unless exercised via the “cashless” exercise provision).

Prior to the exercise of any warrants to purchase common stock, holders of the warrants will not have any of the rights of holders of the common stock purchasable upon exercise, including the right to vote, except as set forth therein.

Warrant holders may exercise warrants only if the issuance of the shares of common stock upon exercise of the warrants is covered by an effective registration statement, or an exemption from registration is available under the Securities Act and the securities laws of the state in which the holder resides. We intend to use commercially reasonable efforts to have the registration statement of which this prospectus forms a part effective when the warrants are exercised. The warrant holders must pay the exercise price in cash upon exercise of the warrants unless there is not an effective registration statement or, if required, there is not an effective state law registration or exemption covering the issuance of the shares underlying the warrants (in which case, the warrants may only be exercised via a “cashless” exercise provision).

The Series 2 warrants are callable by us in certain circumstances. Subject to certain exceptions, in the event that the warrants are outstanding, following the date that is 180 days after the closing date, (i) the volume weighted average price of our common stock for each of 30 consecutive trading days (the “Measurement Period”), which Measurement Period commences after the date that is 180 days after the closing date, exceeds 300% of the initial exercise price (subject to adjustment for forward and reverse stock splits, recapitalizations, stock dividends and similar transactions), (ii) the average daily trading volume for such Measurement Period exceeds $500,000 per trading day and (iii) the holder is not in possession of any information that constitutes or might constitute, material non-public information which was provided by the Company, and subject to the Beneficial Ownership Limitation, then we may, within one trading day of the end of such Measurement Period, upon notice (a “Call Notice”), call for cancellation of all or any portion of the Series 2 warrants for which a notice of exercise has not yet been delivered (a “Call”) for consideration equal to $0.0001 per share. Any portion of a warrant subject to such Call Notice for which a notice of exercise shall not have been received by the Call Date (as hereinafter defined) will be canceled at 6:30 p.m. (New York City time) on the tenth trading day after the date the Call Notice is sent by the Company (such date and time, the “Call Date”). Our right to call the warrants shall be exercised ratably among the holders based on the outstanding Series 2 warrants.

develop. We do not intendplan on applying to apply for listing oflist the warrants on any securities exchange or other trading system.

Description of Authorized and Outstanding CapitalSeries I Preferred Stock

Our authorized capital stock consists of 100,000,000 shares of common stock, par value $0.0001 per share, and 40,000,000 shares of preferred stock, par value $0.0001 per share, 30,000 of which are designated as Series A Junior Participating Preferred Stock.

As of October 31, 2017, we had (i) 625,791 outstanding shares of common stock, (ii) outstanding options to acquire 36,868 shares of our common stock, (iii) 297 outstanding restricted stock units and (iv) outstanding warrants to purchase 496,468 shares of our common stock.

The following description summarizes the most important terms of our capital stock other than the underlying securities. Because it is only a summary, it does not contain all the information that may be important to you. For a complete description you should refer to our certificate of incorporation and bylaws, copies of which have been incorporated by reference herein, and to the applicable provisions of the Delaware General Corporation Law.

Discription of Our Common Stock

Dividends

Holders of our common stock are entitled to receive dividends when and as declared by our board of directors out of funds legally available.

Voting

Holders of our common stock are entitled to one vote for each share on each matter properly submitted to our stockholders for their vote; provided however, that except as otherwise required by law, holders of our common stock

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will not be entitled to vote on any amendment to our certificate of incorporation (including any certificate of designation filed with respect to any series of preferred stock) that relates solely to the terms of a series of outstanding preferred stock if the holders of such affected series are entitled, either separately or together as a class with the holders of one or more other such series, to vote thereon by law or pursuant to our certificate of incorporation (including any certificate of designation filed with respect to any series of preferred stock).

Subject to the voting restrictions described above, holders of our common stock may adopt, amend or repeal our bylaws and/or alter certain provisions of our certificate of incorporation with the affirmative vote of the holders of at least 6623% of the voting power of all of the then-outstanding shares of our capital stock entitled to vote generally in the election of directors, voting together as a single class, in addition to any vote of the holders of a class or series of our stock required by law or our certificate of incorporation. Those provisions of our certificate of incorporation that may be altered only by the super-majority vote described above relate to:

the number of directors on our board of directors, the classification of our board of directors and the terms of the members of our board of directors;
the limitations on removal of any of our directors described below under “—Anti-Takeover Effects of Certain Provisions of Our Certificate of Incorporation and Bylaws and Delaware Law;”
the ability of our directors to fill any vacancy on our board of directors by the affirmative vote of a majority of the directors then in office under certain circumstances;
the ability of our board of directors to adopt, amend or repeal our bylaws and the super-majority vote of our stockholders required to adopt, amend or repeal our bylaws described above;
the limitation on action of our stockholders by written action described below under “—Anti-Takeover Effects of Certain Provisions of Our Certificate of Incorporation and Bylaws and Delaware Law;”
the choice of forum provision described below under “—Choice of Forum;”
the limitations on director liability and indemnification described below under the heading “—Limitation on Liability of Directors and Indemnification;” and
the super-majority voting requirement to amend our certificate of incorporation described above.

Conversion, Redemption and Preemptive Rights

Holders of our common stock do not have any conversion, redemption or preemptive rights pursuant to our organizational documents.

Liquidation, Dissolution and Winding-up

In the event of our liquidation, dissolution or winding up, holders of our common stock are entitled to share ratably in any assets remaining after the satisfaction in full of the prior rights of creditors and the aggregate of any liquidation preference pursuant to the terms of any certificate of designation filed with respect to any series of preferred stock.

Listing

Our common stock is listed on The Nasdaq Capital Market, under the symbol “CHFS.” See “Prospectus Summary—Recent Developments” in this prospectus for important information about the listing of our common stock on The Nasdaq Capital Market.

Preferred Stock

We may issue any class of preferred stock inother national securities exchange or any series. Our board of directors has the authority to establish and designate series, and to fix the number of shares included in each such series and to determine or alter for each such series, such voting powers, designation, preferences, and relative participating, optional, or other rights and such qualifications, limitations or restrictions thereof. Our board of directors is not restricted in repurchasing or redeeming such stock while there is any arrearage in the payment of dividends or sinking fund installments. Our board of directors is authorized to increase or decrease the number of shares of any series subsequent to the issuance of shares of that series, but not below the number of shares of such series then outstanding. The number of authorized shares of preferred stock may be increased or decreased, but not below the number of shares thereof then outstanding, by

nationally recognized trading system.

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the affirmative vote of the holders of a majority of the common stock, without a vote of the holders of the preferred stock, or of any series thereof, unless a vote of any such holders is required pursuant to the terms of any certificate of designation filed with respect to any series of preferred stock.

Prior to issuance of shares of any series of preferred stock, our board of directors is required by Delaware law to adopt resolutions and file a certificate of designation with the Secretary of State of the State of Delaware. The certificate of designation fixes for each class or series the terms, preferences, conversion or other rights, voting powers, restrictions, limitations as to dividends or other distributions, qualifications and terms or conditions of redemption for each class or series. Any shares of preferred stock will, when issued, be fully paid and non-assessable.

Description of Outstanding Warrants

As of October 31, 2017,September 15, 2022, there were warrants outstanding to purchase a total of 496,4681,630,627 shares of our common stock, which expire between 20172022 and 2025. Each of these warrants entitles the holder to purchase one share of common stock at prices ranging from $22.00$2.50 to $3,132.00$890.40 per common share, with a weighted average exercise price of $26.10$25.47 per share. Certain of these warrants have a net exercise provision under which its holder may, in lieu of payment of the exercise price in cash, surrender the warrant and receive a net amount of shares based on the fair market value of our common stock at the time of exercise of the warrant after deduction of the aggregate exercise price. Each of these warrants also contains provisions for the adjustment of the exercise price and the aggregate number of shares issuable upon the exercise of the warrant in the event of dividends, share splits, reorganizations and reclassifications and consolidations. Certain of these warrants provide that, subject to limited exceptions, a holder will not have the right to exercise any portion of its warrants if the holder, together with its affiliates, would beneficially own over 4.99% of our then outstanding common stock following such exercise; provided, however, that upon prior notice to us, the warrant holder may increase its ownership, provided that in no event will the ownership exceed 9.99%.

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Anti-Takeover Effects of Certain Provisions of Our Certificate of Incorporation and Bylaws and Delaware Law

Certificate of Incorporation and Bylaws

Certain provisions of our certificate of incorporation and bylaws may be considered to have an anti-takeover effect, such as those provisions:

providing for our board of directors to be divided into three classes with staggered three-year terms, with only one class of directors being elected at each annual meeting of our stockholders and the other classes continuing for the remainder of their respective three-year terms;
authorizing our board of directors to issue from time to time any series of preferred stock and fix the voting powers, designation, powers, preferences and rights of the shares of such series of preferred stock;
prohibiting stockholders from acting by written consent in lieu of a meeting;
requiring advance notice of stockholder intention to put forth director nominees or bring up other business at a stockholders’ meeting;
prohibiting stockholders from calling a special meeting of stockholders;
requiring a 66 2∕3% super-majority stockholder approval in order for stockholders to alter, amend or repeal certain provisions of our certificate of incorporation;
requiring a 6623% super-majority stockholder approval in order for stockholders to alter, amend or repeal certain provisions of our certificate of incorporation;
requiring a 6623%requiring a 66 2∕3% super-majority stockholder approval in order for stockholders to adopt, amend or repeal our bylaws;
providing that, subject to the rights of the holders of any series of preferred stock to elect additional directors under specified circumstances, neither the board of directors nor any individual director may be removed without cause;
creating the possibility that our board of directors could prevent a coercive takeover of our Company due to the significant amount of authorized, but unissued shares of our common stock and preferred stock;
providing that, subject to the rights of the holders of any series of preferred stock, the number of directors shall be fixed from time to time exclusively by our board of directors pursuant to a resolution adopted by a majority of the total number of authorized directors; and
providing that any vacancies on our board of directors under certain circumstances will be filled only by a majority of our board of directors then in office, even if less than a quorum, and not by the stockholders.
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Delaware Law

We are also subject to Section 203 of the DGCL, which generally prohibits a Delaware corporation from engaging in any business combination with any interested stockholder for a period of three years following the date that the stockholder became an interested stockholder, unless:

prior to that date, our board of directors approved either the business combination or the transaction that resulted in the stockholder becoming an interested stockholder;
upon consummation of the transaction that resulted in the stockholder becoming an interested stockholder, the interested stockholder owned at least 85% of our voting stock outstanding at the time the transaction commenced, excluding for purposes of determining the number of shares outstanding (but not the outstanding voting stock owned by the interested stockholder) those shares owned by (i) persons who are directors and also officers and (ii) employee stock plans in which employee participants do not have the right to determine confidentially whether shares held subject to the plan will be tendered in a tender or exchange offer; or
on or subsequent to that date, the business combination is approved by our board of directors and authorized at an annual or special meeting of stockholders, and not by written consent, by the affirmative vote of at least 6623%on or subsequent to that date, the business combination is approved by our board of directors and authorized at an annual or special meeting of stockholders, and not by written consent, by the affirmative vote of at least 66 2∕3% of the outstanding voting stock that is not owned by the interested stockholder.

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In general, Section 203 of the DGCL defines an interested stockholder as an entity or person beneficially owning 15% or more of the outstanding voting stock of the corporation and any entity or person affiliated with or controlling or controlled by any of these entities or persons.

The above-summarized provisions of our certificate of incorporation and bylaws and the above-summarized provisions of the DGCL could make it more difficult to acquire us by means of a tender offer, a proxy contest or otherwise, or to remove incumbent officers and directors. These provisions are expected to discourage certain types of coercive takeover practices and takeover bids that our board of directors may consider inadequate and to encourage persons seeking to acquire control of us to first negotiate with our board of directors. We believe that the benefits of increased protection of our ability to negotiate with the proponent of an unfriendly or unsolicited proposal to acquire or restructure us outweigh the disadvantages of discouraging takeover or acquisition proposals because, among other things, negotiation of these proposals could result in an improvement of their terms.

Choice of Forum

Our certificateFourth Amended and Restated Certificate of incorporationIncorporation, as amended, provides that, unless we consent in writing otherwise,to the selection of an alternative forum, the Court of Chancery of the State of Delaware will be the sole and exclusive forum for any (i) derivative action or proceeding brought on our behalf; (ii)any action asserting a breach of fiduciary duty owed byduty; any of our directors, officers or other employees to us or any of our stockholders; (iii) action asserting a claim against us arising pursuant to the DGCL; or (iv)any action asserting a claim against us that is governed by the internal affairs doctrine. These provisions would not apply to suits brought to enforce a duty or liability created by the Exchange Act, or any other claim for which the federal courts have exclusive jurisdiction. Our Fourth Amended and Restated Certificate of Incorporation, as amended, will further provide that the federal district courts of the United States of America will be the exclusive forum for resolving any complaint asserting a cause of action arising under the Securities Act, subject to applicable law. Any person or entity purchasing or otherwise acquiring any interest in our securities shall be deemed to have notice of and consented to these provisions. Our exclusive forum provision will not relieve us of our duties to comply with the federal securities laws and the rules and regulations thereunder, and our stockholders will not be deemed to have waived our compliance with these laws, rules and regulations.
The provisions of the DGCL, our Fourth Amended and Restated Certificate of Incorporation, as amended, and our Second Amended and Restated Bylaws could have the effect of discouraging others from attempting hostile takeovers and, as a consequence, they may also inhibit temporary fluctuations in the price of our common stock that often result from actual or rumored hostile takeover attempts. These provisions may also have the effect of preventing changes in our management. It is possible that these provisions could make it more difficult to accomplish transactions that stockholders may otherwise deem to be in their best interests.
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Limitation on Liability of Directors and Indemnification

Our certificate of incorporation limits the liability of our directors to the fullest extent permitted by Delaware law. Delaware law provides that directors of a corporation will not be personally liable for monetary damages for breach of their fiduciary duties as directors, except for liability for any:

breach of their duty of loyalty to us or our stockholders;
act or omission not in good faith or that involves intentional misconduct or a knowing violation of law;
unlawful payment of dividends or redemption of shares as provided in Section 174 of the DGCL; or
transaction from which the directors derived an improper personal benefit.

These limitations of liability do not apply to liabilities arising under federal securities laws and do not affect the availability of equitable remedies such as injunctive relief or rescission.

Our bylaws provide that we will indemnify and advance expenses to our directors and officers to the fullest extent permitted by law or, if applicable, pursuant to indemnification agreements. They further provide that we may choose to indemnify our other employees or agents from time to time. Subject to certain exceptions and procedures, our bylaws also require us to advance to any person who was or is a party, or is threatened to be made a party, to any proceeding by reason of the person’s service as one of our directors or officers all expenses incurred by the person in connection with such proceeding.

Section 145(g) of the DGCL and our bylaws also permit us to secure insurance on behalf of any officer, director, employee or other agent for any liability arising out of his or her actions in connection with their services to us, regardless of whether our bylaws permit indemnification. We maintain a directors’ and officers’ liability insurance policy.

We entered into indemnification agreements with each of our directors and executive officers that provide, in general, that we will indemnify them to the fullest extent permitted by law in connection with their service to us or on our behalf and, subject to certain exceptions and procedures, that we will advance to them all expenses that they incur in connection with any proceeding to which they are, or are threatened to be made, a party.

At present, there is no pending litigation or proceeding involving any of our directors or officers as to which indemnification is required or permitted, and we are not aware of any threatened litigation or proceeding that may result in a claim for indemnification.

Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons of the Company pursuant to the foregoing provisions, or otherwise, the Company has been advised that in the opinion of the SEC this indemnification is against public policy as expressed in the Securities Act and is therefore unenforceable.

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Registration Rights

Outstanding Warrants.

UNDERWRITING
We intend to register for resaleare offering the shares of common stock underlying certain replacement warrants issued to investors under a letter agreement dated February 15, 2017 that was entered into between us and such affiliates to encourage such affiliates to exercise their then-outstanding warrants for cash on or before March 31, 2017. See our Current Reports on Form 8-K filed with the SEC on February 16, 2017 and March 29, 2017 for additional information about the letter agreement and replacement warrants.

Aquadex Acquisition. On August 5, 2016, upon closing of the acquisition of the Aquadex Business, we entered into a registration rights agreement with Baxter, pursuant to which Baxter or its affiliates has the right to request that we file a registration statement with the SEC to register all or part of the 1,666 shares of common stock that Baxter received in connection with the acquisition. Upon receipt of any such request, we have agreed to use reasonable best efforts to prepare and file a registration statement as expeditiously as possible but in any event within 30 days of such request, to cause the registration statement to become effective in accordance with Baxter’s intended method of distribution, and to pay the expenses incurred in connection with any such registration.

Transfer Agent and Registrar

The transfer agent and registrar for our common stock is American Stock Transfer & Trust Company LLC.

Listing

Our common stock trades on The Nasdaq Capital Market under the symbol “CHFS.” See “Prospectus Summary—Recent Developments”securities described in this prospectus for important information aboutthrough the listingunderwriters named below. Ladenburg Thalmann & Co. Inc. is acting as representative of our common stock on The Nasdaq Capital Market.

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UNDERWRITING

the underwriters and book-running manager of the offering. We have entered into an underwriting agreement dated []with the underwriters on    , 2017 with Ladenburg Thalmann & Co. Inc., as underwriter.2022 (the “Underwriting Agreement”). Subject to the terms and conditions of the underwriting agreement,Underwriting Agreement, we have agreed to sell to the underwriters, and each underwriter has severally agreed to purchase from us on a firm commitment basis, at the public offering price less the underwriting discount set forth on the cover page of this prospectus, the number of our securities set forth oppositeUnits listed next to its name below.

in the following table:
UnderwriterUnderwriters
Series F Convertible
Preferred Stock and WarrantsClass A Units
Class B Units
Ladenburg Thalmann & Co. Inc.
[]
[  ]
Total
[]
[  ]

A copy of the underwriting agreement will be filed as an exhibit to the registration statement of which this prospectus is part.

We have been advised by the underwriterunderwriters that it proposesthey propose to offer the securitiesUnits directly to the public at the public offering price set forth on the cover page of this prospectus. The underwriters may sell Class A Units or Class B Units separately to purchasers or may sell a combination of Class A Units and Class B Units to purchasers in any proportion. Any securities sold by the underwriterunderwriters to securities dealers will be sold at the public offering price less a selling concession not in excess of $[] per fixed combination of ashare (or per share of common stock underlying the Series F convertible preferred stock, a Series 1 warrantI Preferred Stock) and a Series 2$[ ] per warrant.

The underwriting agreementUnderwriting Agreement provides that the underwriter’sunderwriters’ obligation to purchase the securities we are offering is subject to conditions contained in the underwriting agreement.

Underwriting Agreement. The underwriters are obligated to purchase and pay for all of the securities offered by this prospectus, if any are purchased.

No action has been taken by us or the underwriterunderwriters that would permit a public offering of the Units, or the shares of common stock, shares of preferred stock and warrants included in the Units in any jurisdiction outside the United States where action for that purpose is required. None of our securities included in this offering may be offered or sold, directly or indirectly, nor may this prospectus or any other offering material or advertisements in connection with the offer and sales of any of the securities offering hereby be distributed or published in any jurisdiction except under circumstances that will result in compliance with the applicable rules and regulations of that jurisdiction. Persons who receive this prospectus are advised to inform themselves about and to observe any restrictions relating to this offering of securities and the distribution of this prospectus. This prospectus is neither an offer to sell nor a solicitation of any offer to buy the securities in any jurisdiction where that would not be permitted or legal.

The underwriter hasunderwriters have advised us that they do not intend to confirm sales to any accountaccounts over which they exercise discretionary authority.

Underwriting Discount and Expenses

The following table summarizes the underwriting discount and commission to be paid to the underwriterunderwriters by us.

 
Per Share
Class A
Unit(1)
Per
Class B
Unit(1)
Total without
Exercise of
Series F Convertible
Preferred Stock and Warrants
Overallotment
Total with
Full
Exercise of
Overallotment
Public offering price
$
[]
 
$
[]
 
Underwriting discount to be paid to the underwriterunderwriters by us (8%(8.0%)(1)(2)(3)
[]
 
[]
 
Proceeds to us (before expenses)
$
���
[]
 
$
[]
 



(1)
(1)The public offering price and underwriting discount corresponds to (x) in respect of the Class A Units (i) a public offering price per share of common stock of $[ ] and (ii) a public offering price per warrant of $[ ] and (y) in respect of the Class B Units (i) a public offering price per share of Series I Preferred Stock of $[ ] and (ii) a public offering price per warrant of $[ ].
(2)
We have also agreed to reimburse the reasonable, out-of-pocketaccountable expenses of the underwriter,representative, including legal fees, in this offering, up to a maximum of $85,000.
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(3)
We have granted a 45 day option to the representative to purchase up to [ ] additional shares of common stock (up to 15% of the shares of common stock plus the number of shares of common stock issuable upon conversion of shares of Series I Preferred Stock) and/or additional warrants exercisable for up to an additional [ ] shares of common stock (up to 15% of the warrants sold in this offering) at the assumed public offering price per share of common stock and the assumed public offering price per warrant set forth above less the underwriting discounts and commissions solely to cover over-allotments, if any.
We estimateexpect the total expenses payable by us forin this offering, excluding underwriting discounts and commissions, to be approximately $[      ], which amount includes (i) the underwriting discount of $[      ] and (ii) reimbursement of the accountable expenses of the underwriter, including the legal fees of the underwriter and (iii) other estimated company expenses of approximately $[      ] which includes legal accounting printing costs and various fees associated with the registration and listing of our shares.

$346,525.

The securities we are offering are being offered by the underwriterunderwriters subject to certain conditions specified in the underwriting agreement.

Other Relationships

Upon completionUnderwriting Agreement.

Over-allotment Option
We have granted to the underwriters an option exercisable not later than 45 days after the date of this prospectus to purchase up to a number of additional shares of common stock and/or warrants equal to 15% of the number of shares of common stock sold in the primary offering we have granted(including the underwriter a rightnumber of first refusalshares of common stock issuable upon conversion of shares of Series I Preferred Stock but excluding any shares of common stock underlying the warrants issued in this offering and any shares of common stock issued upon any exercise of the underwriters’ over-allotment option) and/or 15% of the warrants sold in the primary offering at the public offering price per share of common stock and the public offering price per warrant set forth on the cover page hereto less the underwriting discounts and commissions. The underwriters may exercise the option solely to act as sole or lead bookrunner or exclusive placement agentcover overallotments, if any, made in connection with any subsequent public or private offering of equity

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securities or other capital markets financing by us. This right of first refusal extends for 12 months from the closing date of this offering. TheIf any additional shares of common stock and/or warrants are purchased, the underwriters will offer these shares of common stock and/or warrants on the same terms of any such engagement ofas those on which the underwriter will be determined by separate agreement.

other securities are being offered.

Determination of Offering Price

Our common stock is currently traded on the Nasdaq Capital Market under the ticker symbol “NUWE.” On September 27, 2022, the closing price of our common stock was $0.58 per share.
The public offering price of the Series F convertible preferred stock we are offering is $1,000 per share. The conversion price per share of the Series F convertible preferred stock is ,Units offered by this prospectus will be determined by negotiation between us and the exercise price per share ofunderwriters. Among the warrants is offactors that will be considered in determining the consolidated closing bid price of our common stock on The Nasdaq Capital Market on the date we entered into the underwriting agreement. The public offering price of the shares of preferred stock and warrants we are offering, the conversion price and other terms of the Series F preferred stock and the exercise price and other terms of the warrants were negotiated between us and the underwriters, based on the trading of our common stock prior to the offering, among other things, including:

Units:
our history and our prospects;
the industry in which we operate;
our past and present operating results;
the previous experience of our executive officers; and
the general condition of the securities markets at the time of this offering, including discussions between the underwriter and prospective investors.offering.

The public offering price stated on the cover page of this prospectus should not be considered an indication of the actual value of the securitiesshares of common stock sold in this offering. That price is subject to change as a result of market conditions and other factors, and we cannot assure you that the securitiesshares of common stock sold in this offering can be resold at or above the public offering price.

Lock-up Agreements

Our executive officers directors and each of their respective affiliates and associated partnersdirectors have agreed with the underwriter to be subject to a lock-up period of 90 days following the date of this prospectus. This means that, during the applicable lock-up period, such persons may not offer for sale, contract to sell, sell, distribute, grant any option, right or warrant to purchase, pledge, hypothecate, or otherwise dispose of, directly or indirectly, any shares of our common stock or any securities convertible into, or exercisable or exchangeable for, shares of our common stock. Certain limited transfers are permitted during the lock-up period if the transferee agrees to these lock-up restrictions. We have also agreed, in the underwriting agreement,Underwriting Agreement, to similar lock-up restrictions on the issuance and sale of our securities for the later of (i) 90 days following the closingeffectiveness of this offering,the Underwriting Agreement and (ii) 30 days following the stockholder approval of the exercisability of the warrants, although we will be permitted to issue stock options or stock awards to directors, officers and employees under our existing plans. The underwriterrepresentative may, in its sole discretion and without notice, waive the terms of any of these lock-up agreements.
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Leak-out Agreements
Certain investors in this offering may enter into leak-out agreements wherein each investor who is party thereto (together with certain of its affiliates) will agree not to sell, dispose or otherwise transfer, directly or indirectly (including, without limitation, any sales, short sales, swaps or any derivative transactions that would be equivalent to any sales or short positions), on any trading day, shares of our common stock, including shares of common stock purchased in this offering and the shares of common stock issuable upon exercise of the warrants and conversion of the Series I Preferred Stock, in an amount more than a specified percentage of the trading volume of the common stock on the principal trading market, subject to certain exceptions. This restriction will not apply to sales or transfers of any such shares of common stock in transactions which do not need to be reported on the Nasdaq consolidated tape so long as the purchaser or transferee executes and delivers a leak-out agreement. After such sale or transfer, future sales of the securities covered by the leak-out agreement entered into by the original owner (together with certain of its affiliate) and the purchaser or transferee will be aggregated to determine compliance with the terms of the leak-out agreement.
Other Relationships
Ladenburg Thalmann & Co. Inc. has performed investment banking services for us in the past, for which it has received customary fees and expenses. The underwriters and their respective affiliates may, from time to time, engage in transactions with or perform services for us in the ordinary course of their business. Upon completion of this offering, we have granted the representative a right of first refusal to act as sole bookrunner or exclusive placement agent in connection with any subsequent public or private financing by us, subject to certain exceptions. This right of first refusal extends for twelve months from the closing date of this offering. The terms of any such engagement of the representative will be determined by separate agreement.
Common Stock Listing
Our common stock is currently listed on The Nasdaq Capital Market under the symbol “NUWE.”
Transfer Agent and Registrar

The transfer agent and registrar for our common stock is American Stock Transfer & Trust Company LLC.

Stabilization, Short Positions and Penalty Bids

The underwriterunderwriters may engage in syndicate covering transactions, stabilizing transactions, and penalty bids or purchases for the purpose of pegging, fixing or maintaining the price of our common stock;

Syndicate covering transactions involve purchases of securities in the open market after the distribution has been completed in order to cover syndicate short positions. Such a naked short position would be closed out by buying securities in the open market. A naked short position is more likely to be created if the underwriter isunderwriters are concerned that there could be downward pressure on the price of the securities in the open market after pricing that could adversely affect investors who purchase in the offering.
Stabilizing transactions permit bids to purchase the underlying security so long as the stabilizing bids do not exceed a specific maximum.
maximum and are engaged in for the purpose of preventing or retarding a decline in the market price of the shares of common stock while this offering is in progress.
Penalty bids permit the underwriterunderwriters to reclaim a selling concession from a syndicate member when the securities originally sold by the syndicate member are purchased in a stabilizing or syndicate covering transaction to cover syndicate short positions.

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These syndicate covering transactions, stabilizing transactions, and penalty bids may have the effect of raising or maintaining the market prices of our securities or preventing or retarding a decline in the market prices of our securities. As a result the price of our common stock may be higher than the price that might otherwise exist in the open market. Neither we nor the underwriterunderwriters make any representation or prediction as to the effect that the transactions described above may have on the price of our common stock. These transactions may be effected on the Nasdaq Capital Market, in the over-the-counter market or on any other trading market and, if commenced, may be discontinued at any time.

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In connection with this offering, the underwriterunderwriters also may engage in passive market making transactions in our common stock in accordance with Regulation M during a period before the commencement of offers or sales of shares of our common stock in this offering and extending through the completion of the distribution. In general, a passive market maker must display its bid at a price not in excess of the highest independent bid for that security. However, if all independent bids are lowered below the passive market maker’s bid that bid must then be lowered when specific purchase limits are exceeded. Passive market making may stabilize the market price of the securities at a level above that which might otherwise prevail in the open market and, if commenced, may be discontinued at any time.

Neither we, nor the underwriterunderwriters make any representation or prediction as to the direction or magnitude of any effect that the transactions described above may have on the prices of our securities. In addition, neither we nor the underwriterunderwriters make any representation that the underwriterunderwriters will engage in these transactions or that any transactions, once commenced will not be discontinued without notice.

Electronic Offer, Sale and Distribution of Shares
This registration statement may be made available in electronic format on websites or through other online services maintained by the underwriters, or their affiliates. Other than this registration statement in electronic format, the information on any underwriter’s websites and any information contained in any other websites maintained by such underwriter is not part of this prospectus or the registration statement of which this prospectus forms a part, has not been approved and/or endorsed by us or any underwriter, and should not be relied upon by investors.
Indemnification

We have agreed to indemnify the underwriterunderwriters against certain liabilities, including certain liabilities arising under the Securities Act or to contribute to payments that the underwriterunderwriters may be required to make for these liabilities.

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MATERIAL U.S. FEDERAL INCOME TAX CONSIDERATIONS

The following is a general discussion of material U.S. federal income considerations relating to the purchase, ownership and disposition of our common stock, Series F Preferred Stock or warrants. This discussion is based on current provisions of the Internal Revenue Code of 1986, as amended, (the “Internal Revenue Code”), existing and proposed U.S. Treasury Regulations promulgated or proposed thereunder and current administrative and judicial interpretations thereof, all as in effect as of the date of this prospectus and all of which are subject to change or to differing interpretation, possibly with retroactive effect. We have not sought and will not seek any rulings from the Internal Revenue Service (the “IRS”) regarding the matters discussed below. There can be no assurance that the IRS or a court will not take a contrary position.

This discussion is limited to U.S. holders and non-U.S. holders who hold our common stock, Series F Preferred Stock or warrants as capital assets within the meaning of Section 1221 of the Internal Revenue Code (generally, as property held for investment). This discussion does not address all aspects of U.S. federal income taxation, such as the U.S. alternative minimum income tax and the additional tax on net investment income, nor does it address any aspect of state, local or non-U.S. taxes, or U.S. federal taxes other than income taxes, such as federal estate taxes. This discussion does not consider any specific facts or circumstances that may apply to a holder and does not address the special tax considerations that may be applicable to particular holders, such as:

insurance companies;
tax-exempt organizations;
financial institutions;
brokers or dealers in securities;
regulated investment companies;
pension plans;
controlled foreign corporations;
passive foreign investment companies;
corporations that accumulate earnings to avoid U.S. federal income tax;
certain U.S. expatriates;
U.S. persons that have a “functional currency” other than the U.S. dollar;
persons that acquire our common stock as compensation for services;
owners that hold our common stock, Series F Preferred Stock or warrants as part of a straddle, hedge, conversion transaction, synthetic security or other integrated investment;
entities that are treated as disregarded entities for U.S. federal income tax purposes (regardless of their places of organization or formation) and their investors; and
partnerships or other entities treated as partnerships for U.S. federal income tax purposes and their investors.

If any entity taxable as a partnership for U.S. federal income tax purposes holds our common stock, Series F Preferred Stock or warrants, the U.S. federal income tax treatment of a partner in the partnership generally will depend on the status of the partner, the activities of the partnership and certain determinations made at the partner level. An investor in a partnership or entity treated as disregarded for U.S. federal income tax purposes should consult his, her or its own tax advisor regarding the applicable tax consequences relating to the purchase, ownership and disposition of our common stock, Series F Preferred Stock or warrants.

For purposes of this discussion, the term “U.S. holder” means a beneficial owner of our common stock, Series F Preferred Stock or warrants that is, for U.S. federal income tax purposes:

an individual who is a citizen or resident of the United States;
a corporation created or organized in or under the laws of the United States or of any political subdivision of the United States;

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an estate the income of which is subject to U.S. federal income taxation regardless of its source; or
a trust, if (i) a U.S. court is able to exercise primary supervision over the administration of the trust and one or more U.S. persons have authority to control all substantial decisions of the trust or (ii) the trust has a valid election to be treated as a U.S. person under applicable U.S. Treasury Regulations.

A “non-U.S. holder” is a beneficial owner of our common stock, Series F Preferred Stock or warrants that is, for U.S. federal income tax purposes, an individual, corporation, estate or trust that is not a U.S. holder.

Prospective investors should consult their own tax advisors regarding the U.S. federal, state, local and non-U.S. income and other tax considerations of purchasing, holding and disposing of our common stock, Series F Preferred Stock or warrants.

U.S. Holders

Purchase of Series F Preferred Stock and Warrants

For U.S. federal income tax purposes, the purchase of the fixed combination of a share of Series F Preferred Stock and warrants will be treated as the purchase of three components: a component consisting of one share of Series F Preferred Stock, a component consisting of one warrant that expires on the first anniversary of the date of issuance to purchase up to 214 shares of our common stock, and a component consisting of one warrant that expires on the seventh anniversary of the date of issuance to purchase up to 214 shares of our common stock. The purchase price for each fixed combination of a share of Series F Preferred Stock and warrants will be allocated between its components in proportion to the relative fair market value of each at the time the fixed combination of a share of Series F Preferred Stock and warrants is purchased by the holder. This allocation of the purchase price for each fixed combination of a share of Series F Preferred Stock and warrants will establish a holder’s initial tax basis for U.S. federal income tax purposes in the Series F Preferred Stock and warrants that compose each fixed combination of a share of Series F Preferred Stock and warrants.

Exercise of Warrants

A U.S. holder generally will not recognize gain or loss on the exercise of a warrant and related receipt of shares of our common stock (unless cash is received in lieu of the issuance of a fractional share of our common stock). A U.S. holder’s initial tax basis in the shares of our common stock received upon the exercise of a warrant will be equal to the sum of (a) such U.S. holder’s tax basis in such warrant plus (b) the exercise price paid by such U.S. holder on the exercise of such warrant. A U.S. holder’s holding period for the shares of our common stock received upon the exercise of a warrant will begin on the day after the date that the warrant is exercised.

In certain limited circumstances, a U.S. holder may be permitted to undertake a cashless exercise of warrants into shares of our common stock. The U.S. federal income tax treatment of a cashless exercise of warrants into shares of common stock is unclear, and the tax consequences of a cashless exercise could differ from the consequences upon the exercise of a warrant described in the preceding paragraph. U.S. holders should consult their own tax advisors regarding the U.S. federal income tax consequences of a cashless exercise of warrants.

Certain Adjustments to the Warrants or Series F Preferred Stock

An adjustment to the number of shares of our common stock that will be issued upon the exercise of a warrant or conversion of a share of Series F Preferred Stock, or an adjustment to the exercise price of a warrant, may be treated as a constructive distribution to a U.S. holder of the warrant or share depending on the circumstances of such adjustment (for example, if such adjustment is to compensate for a distribution of cash or other property to our shareholders). Adjustments to the exercise price of warrants or conversion price of Series F Preferred Stock made pursuant to a bona fide reasonable adjustment formula that has the effect of preventing dilution of the interest of the holders thereof generally should not be considered to result in a constructive distribution. Any such constructive distribution would be taxable whether or not there is an actual distribution of cash or other property. See the more detailed discussion of the rules applicable to distributions made by us under the heading “Distributions on Common Stock or Series F Preferred Stock” below.

Expiration of the Warrants without Exercise

Upon the lapse or expiration of a warrant, a U.S. holder will recognize a loss in an amount equal to such U.S. holder’s tax basis in the warrant. Any such loss generally will be a capital loss and will be long-term capital loss if the warrant is held for more than one year. Deductions for capital losses are subject to certain limitations.

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Conversion of Series F Preferred Stock

A U.S. holder generally will not recognize gain or loss upon the conversion of a share of Series F Preferred Stock into common stock. A U.S. holder’s initial tax basis in the shares of our common stock received upon the conversion of a share of Series F Preferred Stock will be equal to such U.S. holder’s tax basis in the share of Series F Preferred Stock. A U.S. holder’s holding period for the shares of our common stock received upon the conversion of a share of Series F Preferred Stock will include the U.S. holder’s holding period in such share of Series F Preferred Stock.

Distributions on Common Stock or Series F Preferred Stock

If we pay distributions of cash or property with respect to our common stock or Series F Preferred Stock (including constructive distributions as described above under the heading “Certain Adjustments to the Warrants or Series F Preferred Stock”), those distributions generally will constitute dividends for U.S. federal income tax purposes to the extent paid from our current or accumulated earnings and profits, as determined under U.S. federal income tax principles. If a distribution exceeds our current and accumulated earnings and profits, the excess will be treated as a tax-free return of the U.S. holder’s investment, up to such holder’s tax basis in its shares of our common stock or Series F Preferred Stock. Any remaining excess will be treated as capital gain, subject to the tax treatment described below under the heading “—Gain on Sale, Exchange or Other Taxable Disposition.”

Exercise of Warrants and Conversion of Series F Preferred Stock

A non-U.S. holder generally will not be subject to U.S. federal income tax on the exercise of the warrants or conversion of shares of Series F Preferred Stock into shares of common stock. However, if a cashless exercise of warrants results in a taxable exchange, as described in “—U.S. Holders - Exercise of Warrants,” the rules described below under “Gain on Sale, Exchange or Other Taxable Disposition” would apply.

Gain on Sale, Exchange or Other Taxable Disposition

Upon the sale or other taxable disposition of common shares, Series F Preferred Stock or warrants, a U.S. holder generally will recognize capital gain or loss in an amount equal to the difference between (a) the amount of cash plus the fair market value of any property received and (b) such U.S. holder’s tax basis in such common shares, Series F Preferred Stock or warrants sold or otherwise disposed of. Such gain or loss generally will be long-term capital gain or loss if, at the time of the sale or other disposition, the common shares, Series F Preferred Stock or warrants have been held by the U.S. holder for more than one year. Preferential tax rates may apply to long-term capital gain of a U.S. holder that is an individual, estate, or trust. Deductions for capital losses are subject to certain limitations.

Non-U.S. Holders

Distributions on Common Stock or Series F Preferred Stock

If we pay distributions of cash or property with respect to our common stock or Series F Preferred Stock (including constructive distributions as described above under the heading “Certain Adjustments to the Warrants or Series F Preferred Stock”), those distributions generally will constitute dividends for U.S. federal income tax purposes to the extent paid from our current or accumulated earnings and profits, as determined under U.S. federal income tax principles. If a distribution exceeds our current and accumulated earnings and profits, the excess will be treated as a tax-free return of the non-U.S. holder’s investment, up to such holder’s tax basis in its shares of our common stock or Series F Preferred Stock. Any remaining excess will be treated as capital gain, subject to the tax treatment described below under the heading “—Gain on Sale, Exchange or Other Taxable Disposition.” Dividends paid to a non-U.S. holder generally will be subject to withholding of U.S. federal income tax at a 30% rate or such lower rate as may be specified by an applicable income tax treaty between the United States and such holder’s country of residence. In the case of any constructive distribution, it is possible that this tax would be withheld from any amount owed to the non-U.S. holder, including, but not limited to, distributions of cash, common stock or sales proceeds subsequently paid or credited to that holder. If we are unable to determine, at the time of payment of a distribution, whether the distribution will constitute a dividend, we may nonetheless choose to withhold any U.S. federal income tax on the distribution as permitted by U.S. Treasury Regulations.

Distributions that are treated as effectively connected with a trade or business conducted by a non-U.S. holder within the United States are generally not subject to the 30% withholding tax if the non-U.S. holder provides a properly executed IRS Form W-8ECI stating that the distributions are not subject to withholding because they are

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effectively connected with the non-U.S. holder’s conduct of a trade or business in the United States. If a non-U.S. holder is engaged in a trade or business in the United States and the distribution is effectively connected with the conduct of that trade or business, the distribution will generally have the consequences described above for a U.S. holder (subject to any modification provided under an applicable income tax treaty). Any U.S. effectively connected income received by a non-U.S. holder that is treated as a corporation for U.S. federal income tax purposes may also, under certain circumstances, be subject to an additional “branch profits tax” at a 30% rate (or such lower rate as may be specified by an applicable income tax treaty).

A non-U.S. holder who claims the benefit of an applicable income tax treaty between the United States and such holder’s country of residence generally will be required to provide a properly executed IRS Form W-8BEN or W-8BEN-E, as applicable, and satisfy applicable certification and other requirements. A non-U.S. holder that is eligible for a reduced rate of U.S. withholding tax under an income tax treaty generally may obtain a refund or credit of any excess amounts withheld by timely filing an appropriate claim with the IRS. Non-U.S. holders should consult their own tax advisors regarding their entitlement to benefits under a relevant income tax treaty.

Gain on Sale, Exchange or Other Taxable Disposition

Subject to the discussion below in “—Information Reporting and Backup Withholding” and “—Foreign Account Tax Compliance Act,” a non-U.S. holder generally will not be subject to U.S. federal income tax on gain recognized on a sale, exchange or other taxable disposition of our common stock, Series F Preferred Stock or warrants unless:

the gain is effectively connected with the non-U.S. holder’s conduct of a trade or business in the United States and, if an applicable income tax treaty so provides, the gain is attributable to a permanent establishment maintained by the non-U.S. holder in the United States; in these cases, the non-U.S. holder will be taxed on a net income basis at the regular graduated rates and in the manner applicable to a U.S. holder, and, if the non-U.S. holder is a corporation, an additional branch profits tax at a rate of 30%, or a lower rate as may be specified by an applicable income tax treaty, may also apply;
the non-U.S. holder is an individual present in the United States for 183 days or more in the taxable year of the disposition and certain other conditions are met, in which case the non-U.S. holder will be subject to a 30% tax (or such lower rate as may be specified by an applicable income tax treaty) on the amount by which such non-U.S. holder’s capital gains allocable to U.S. sources exceed capital losses allocable to U.S. sources during the taxable year of the disposition; or
we are or were a “U.S. real property holding corporation” during the shorter of the five-year period ending on the date of the disposition or the period that the non-U.S. holder held our common stock. Generally, a corporation is a “U.S. real property holding corporation” if the fair market value of its “U.S. real property interests” (within the meaning of the Internal Revenue Code) equals or exceeds 50% of the sum of the fair market value of its worldwide real property interests plus its other assets used or held for use in a trade or business. We believe that we are not currently, and we do not anticipate becoming, a “U.S. real property holding corporation” for U.S. federal income tax purposes.

Information Reporting and Backup Withholding

Distributions on, and the payment of the proceeds of a disposition of, our common stock, Series F Preferred Stock or warrants generally will be subject to information reporting if made within the United States or through certain U.S.-related financial intermediaries. Information returns are required to be filed with the IRS and copies of information returns may be made available to the tax authorities of the country in which a holder resides or is incorporated under the provisions of a specific treaty or agreement.

Backup withholding may also apply if the holder fails to provide certification of exempt status or a correct U.S. taxpayer identification number and otherwise comply with the applicable backup withholding requirements. Generally, a holder will not be subject to backup withholding if it provides a properly completed and executed IRS Form W-9 or appropriate IRS Form W-8, as applicable. Backup withholding is not an additional tax. Amounts withheld under the backup withholding rules may be refunded or credited against the holder’s U.S. federal income tax liability, if any, provided certain information is timely filed with the IRS.

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Foreign Account Tax Compliance Act

Legislation commonly referred to as the Foreign Account Tax Compliance Act, or FATCA, generally imposes a U.S. federal withholding tax of 30% on payments to certain non-U.S. entities (including certain intermediaries) unless such persons comply with FATCA’s information reporting and withholding regime. This regime and its requirements are different from, and in addition to, the certification requirements described elsewhere in this discussion. The FATCA withholding rules apply to dividend payments and, in the case of certain sales or other dispositions occurring after December 31, 2018 (including a distribution to the extent it is treated as a return of capital or capital gain), the gross proceeds of such disposition.

The United States has entered into, and continues to negotiate, intergovernmental agreements (each, an “IGA”) with a number of other jurisdictions to facilitate the implementation of FATCA. An IGA may significantly alter the application of FATCA and its information reporting and withholding requirements with respect to any particular investor. FATCA is particularly complex and its application remains uncertain. Prospective investors should consult their own tax advisors regarding how these rules may apply in their particular circumstances.

LEGAL MATTERS

Honigman Miller Schwartz and Cohn LLP, Kalamazoo, Michigan, will issue a legal opinion as to the validity of the securities offered by this prospectus. The representative of the underwriters is being represented by Ellenoff Grossman & Schole LLP, New York, New York, is acting as counsel for the underwriter in connection with certain legal matters in connection with this offering.

York.

EXPERTS

The

Baker Tilly US, LLP, our independent registered public accounting firm, has audited our consolidated financial statements as of Sunshine Heart, Inc. (now known as CHF Solutions, Inc.) and Subsidiaries appearingfor the years ended December 31, 2021 and 2020 included in Sunshine Heart, Inc.’s (now known as CHF Solutions, Inc.)our Annual Report (Form 10-K)on Form 10-K for the year ended December 31, 2016, have been audited by Ernst & Young LLP, independent registered public accounting firm, as set forth in their report thereon (which contains an explanatory paragraph describing conditions that raise substantial doubt about the Company’s ability to continue as a going concern as described in Note 1 to the consolidated financial statements),2021, which are incorporated by reference therein,into this prospectus and incorporated herein by reference. Such consolidated financial statementselsewhere in the registration statement, and are incorporated herein by referenceincluded in reliance upon such report given on the authority of such firm as experts in accounting and auditing.

WHERE YOU CAN FIND ADDITIONAL INFORMATION
We file reports, proxy statements and other information with the SEC in accordance with the Exchange Act. You may read and copy our reports, proxy statements and other information filed by us at the public reference room of the SEC located at 100 F Street, N.E., Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information about the public reference rooms. Our reports, proxy statements and other information filed with the SEC are available free of charge to the public over the Internet at the SEC’s website at http://www.sec.gov. These documents may also be accessed on our website at www.nuwellis.com. Information contained in, or accessible through, our website is not a part of this prospectus.

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INFORMATION INCORPORATED BY REFERENCE
SEC rules allow us to “incorporate by reference” into this prospectus much of the information we file with the SEC, which means that we can disclose important information to you by referring you to those publicly available documents. The information that we incorporate by reference into this prospectus, including the consolidated financial statements, is considered to be part of this prospectus. These documents may include Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K, as well as proxy statements. You should read the information incorporated by reference because it is an important part of this prospectus.
This prospectus incorporates by reference the documents listed below, other than those documents or the portions of those documents deemed to be furnished and not filed in accordance with SEC rules:
our Annual Report on Form 10-K for the fiscal year ended December 31, 2021, filed with the SEC on March 3, 2022;
our Quarterly Reports on Form 10-Q for the quarter ended March 31, 2022, filed with the SEC on May 12, 2022 and for the quarter ended June 30, 2022, filed with the SEC on August 11, 2022;
our Current Reports on Form 8-K filed with the SEC on April 21, 2022, May 18, 2022, May 26, 2022, June 3, 2022, and September 23, 2022;
the information specifically incorporated by reference into our Annual Report on Form 10-K for the year ended December 31, 2021 from our definitive proxy statement for the annual meeting of stockholders held on May 17, 2022, filed with the SEC on April 11, 2022, and supplemented on May 18, 2022 and by Form 8-K on May 26, 2022 for the adjournment of the annual meeting of stockholders held on May 25, 2022;
our definitive proxy statement for the annual meeting of stockholders held on May 17, 2022, filed with the SEC on April 11, 2022, and supplemented on May 18, 2022 and by form 8-K on May 26, 2022 for the adjournment of the annual meeting of stockholders held on May 25, 2022;
the description of our common stock in our registration statement on Form 10 filed with the SEC on September 30, 2011, including any amendment or report filed for the purpose of updating such description; and
the description of our Series A Junior Participating Preferred Stock, par value $0.0001 per share, in our registration statement on Form 8-A filed with the SEC on June 14, 2013.
All documents we file with the SEC pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act, except as to any portion of any report or document that is not deemed filed under such provisions, (i) on or after the date of filing of the registration statement containing this prospectus and prior to the effectiveness of the registration statement and (ii) on or after the date of this prospectus until the earlier of the date on which all of the securities registered hereunder have been sold or this prospectus has been withdrawn, shall be deemed incorporated by reference in this prospectus and to be a part of this prospectus from the date of filing of those documents. The information in documents that we file in the future will update and supersede the information currently included and incorporated by reference in this prospectus. Nothing in this prospectus shall be deemed to incorporate information furnished but not filed with the SEC pursuant to Item 2.02 or 7.01 of Form 8-K.
These documents may also be accessed on our website at https://www.nuwellis.com/. Information contained in, or accessible through, our website is not a part of this prospectus.
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We will provide without charge to each person, including any beneficial owners, to whom this prospectus is delivered, upon his or her written or oral request, a copy of any or all reports or documents referred to above which have been or may be incorporated by reference into this prospectus but not delivered with this prospectus, excluding exhibits to those reports or documents unless they are specifically incorporated by reference into those documents. You may request a copy of these documents by writing or telephoning us at the following address:
Nuwellis, Inc.
12988 Valley View Road
Eden Prairie, Minnesota 55344
(952) 345-4200
ir@nuwellis.com
Attention: George Montague
Chief Financial Officer
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PART II

INFORMATION NOT REQUIRED IN PROSPECTUS

Item 13.
Other Expenses of Issuance and Distribution.

The following table sets forth the estimated costs and expenses to be incurred in connection with the issuance and distribution of the securities registered under this Registration Statement. All amounts are estimates except the Securities and Exchange Commission registration fee.

 
Amount to be Paid
SEC registration fee
$
2,148
 
FINRA filing fee
$
3,000
 
Legal fees and expenses
$
100,000
 
Printing expenses
$
15,000
 
Accountant’s fees and expenses
$
75,000
 
Transfer agent and registrar fees
$
5,000
 
Miscellaneous expenses
$
14,852
 
Total
$
215,000
 
Amount to
be Paid
SEC registration fee
$2,225
FINRA filing fee
2,300
Legal fees and expenses
235,000
Printing expenses
15,000
Accountant’s fees and expenses
65,000
Transfer agent and registrar fees
12,000
Miscellaneous expenses
15,000
Total
$346,525
Item 14.
Indemnification of Directors and Officers.

Our certificate of incorporation and bylaws provide that each person who was or is made a party or is threatened to be made a party to or is otherwise involved (including, without limitation, as a witness) in any action, suit or proceeding, whether civil, criminal, administrative or investigative, by reason of the fact that he or she is or was a director or an officer of CHF Solutions,Nuwellis, Inc. or is or was serving at our request as a director, officer, or trustee of another corporation, or of a partnership, joint venture, trust or other enterprise, including service with respect to an employee benefit plan, whether the basis of such proceeding is alleged action in an official capacity as a director, officer or trustee or in any other capacity while serving as a director, officer or trustee, shall be indemnified and held harmless by us to the fullest extent authorized by the Delaware General Corporation Law, as amended (the “DGCL”), against all expense, liability and loss (including attorneys’ fees, judgments, fines, ERISA excise taxes or penalties and amounts paid in settlement) reasonably incurred or suffered by such.

Section 145 of the DGCL permits a corporation to indemnify any director or officer of the corporation against expenses (including attorney’s fees), judgments, fines and amounts paid in settlement actually and reasonably incurred in connection with any action, suit or proceeding brought by reason of the fact that such person is or was a director or officer of the corporation, if such person acted in good faith and in a manner that he or she reasonably believed to be in, or not opposed to, the best interests of the corporation, and, with respect to any criminal action or proceeding, if he or she had no reason to believe his or her conduct was unlawful. In a derivative action, (i.e., one brought by or on behalf of the corporation), indemnification may be provided only for expenses actually and reasonably incurred by any director or officer in connection with the defense or settlement of such an action or suit if such person acted in good faith and in a manner that he or she reasonably believed to be in, or not opposed to, the best interests of the corporation, except that no indemnification shall be provided if such person shall have been adjudged to be liable to the corporation, unless and only to the extent that the court in which the action or suit was brought shall determine that the defendant is fairly and reasonably entitled to indemnity for such expenses despite such adjudication of liability.

Pursuant to Section 102(b)(7) of the DGCL, our certificate of incorporation eliminates the liability of a director to us or our stockholders for monetary damages for such a breach of fiduciary duty as a director, except for liabilities arising:

from any breach of the director’s duty of loyalty to us or our stockholders;
from acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law;
under Section 174 of the DGCL; and
from any transaction from which the director derived an improper personal benefit.

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We carry insurance policies insuring our directors and officers against certain liabilities that they may incur in their capacities as directors and officers.

The Company has entered into indemnification agreements with each of its directors and executive officers. Pursuant to the indemnification agreements, the Company agrees to hold harmless and indemnify its directors and executive officers to the fullest extent authorized or permitted by the provisions of the Company’s certificate of incorporation and bylaws and the DGCL, including for any amounts that such director or officer becomes obligated to pay because of any claim to which such director or officer is made or threatened to be made a party, witness or participant, by reason of such director’s or officer’s service as a director, officer, employee or other agent of the Company.

There are certain exceptions from the Company’s obligation to indemnify its directors and executive officers pursuant to the indemnification agreements, including for “short-swing” profit claims under Section 16(b) of the Exchange Act, losses that result from conduct that is established by a final judgment as knowingly fraudulent or deliberately dishonest or that constituted willful misconduct, or that constituted a breach of the duty of loyalty to the Company or resulted in any improper personal profit or advantage, where payment is actually made to a director or officer under an insurance policy, indemnity clause, bylaw or agreement, except in respect of any excess beyond payment under such insurance, clause, bylaw or agreement, for indemnification which is not lawful, or in connection with any proceeding initiated by such director or officer, or any proceeding against the Company or its directors, officers, employees or other agents, unless (i) such indemnification is expressly required to be made by law, (ii) the proceeding was authorized by the board of directors of the Company, (iii) such indemnification is provided by the Company, in its sole discretion, pursuant to the powers vested in the Company under the DGCL, or (iv) the proceeding is initiated to enforce a claim for indemnification pursuant to the indemnification agreement.

All agreements and obligations of the Company contained in the indemnification agreements shall continue during the period when the director or officer who is a party to an indemnification agreement is a director, officer, employee or other agent of the Company (or is or is serving at the request of the Company as a director, officer, employee or other agent of another corporation, partnership, joint venture, trust, employee benefit plan or other enterprise) and shall continue thereafter so long as such director or officer shall be subject to any possible claim or threatened, pending or completed action, suit or proceeding, whether civil, criminal, arbitrational, administrative or investigative. In addition, the indemnification agreements provide for partial indemnification and advance of expenses.

Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to our directors, officers or controlling persons pursuant to the foregoing provisions, or otherwise, we have been advised that in the opinion of the Securities and Exchange Commission this indemnification is against public policy as expressed in the Securities Act, and is, therefore, unenforceable.

Item 15.
Recent Sales of Unregistered Securities.

The following sets forth information regarding all unregistered securities sold by the registrant in the three years preceding the date of this registration statement. This information has been retroactively adjusted to reflect the reverse stock splits for all periods presented.

On February 18, 2015,October 25, 2019, the registrant entered intoclosed on a loan agreement with Silicon Valley Bank under which the registrant issued to Silicon Valley Bank and its affiliate, Life Science Loans, LLC, warrants to purchase sharesregistered direct offering of its common stock equal to 6% of a $6.0 million term loan divided by the lower of (i) the closing price for a share of the registrant’s common stock as reported on the Nasdaq Capital Market for the date on which such term loan advance was made to the registrant, and (ii) the average of the closing prices for a share of the registrant’s common stock reported for the ten trading days ending on the date of such term loan advance. The warrants were exercisable immediately with a term of ten years. Additionally, upon Silicon Valley Bank funding the $2.0 million term loan available until June 30, 2015, the warrants automatically became exercisable for an additional number of shares equal to 6% of such term loan divided by the lower of (i) the closing price for a share of the registrant’s common stock as reported on the Nasdaq Capital Market for the date such term loan advance, and (ii) the average of the closing prices for a share of the registrant’s common stock reported or the ten trading date ending on the date of such term loan advance. The warrants were issued under an exemption from the registration requirements of the Securities Act provided in Section 4(a)(2) of the Securities Act and/or Regulation D.

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On July 20, 2016, the registrant entered into a securities purchase agreement with Sabby Healthcare Master Fund Ltd. and Sabby Volatility Warrant Master Fund Ltd. (collectively, Sabby) under which the registrant issued and sold, on July 26, 2016, 3,468 shares of Series B Convertible Preferred Stock at $1,000 per share directly to Sabby in a registered direct offering. In a concurrent private placement, the registrant issued warrants to purchase an aggregate of 6,149 shares of its common stock to Sabby. Each warrant was exercisable beginning on the six month anniversary of the date of issuance at an exercise price of $564.00 per share (as adjusted), subject to further adjustment as provided therein and for 36 months from the initial exercise date, but not thereafter. Northland Securities, Inc. acted as placement agent and the registrant issued Northland Securities, Inc. and its designees warrants to purchase an aggregate of 368 shares of common stock. The Northland warrants were exercisable beginning immediately upon the closing at an exercise price of $810.00 per share, subject to adjustment as provided there in, and for 5 years thereafter. The warrants were issued under an exemption from the registration requirements of the Securities Act provided in Section 4(a)(2) of the Securities Act and/or Regulation D.
On August 5, 2016, the registrant entered into and consummated the transactions contemplated by an asset purchase agreement with Gambro UF Solutions, Inc. (the “Seller”), pursuant to which the registrant acquired certain assets exclusively related to the production and sale of Seller’s Aquadex FlexFlow products for consideration consisting of $4.0 million paid in cash and 1,666 shares of the registrant’s common stock. The shares of common stock were issued to Seller under an exemption from the registration requirement of the Securities Act provided in Section 4(a)(2) of the Securities Act and/or Regulation D.
On October 30, 2016, the registrant entered into a securities exchange agreement with Sabby, as holder of the registrant’s Series B Convertible Preferred Stock pursuant to which the registrant agreed to issue Sabby 2,227.2 shares of Series B-1 Convertible Preferred Stock in exchange for the cancellation of all shares of Series B Convertible Preferred Stock held by Sabby in reliance on an exemption from registration provided by Section 3(a)(9) of the Securities Act, and consummated such exchange on November 3, 2016.
On October 30, 2016, the registrant entered into securities purchase agreements with Sabby under which it agreed to issue and sell 2,900 shares of Series C Convertible Preferred Stock at $1,000 per share directly to Sabby in a registered direct offering. In a concurrent private placement, the registrant agreed to issue and sell 900 shares of Series D Convertible Preferred Stock at $1,000 per share directly to Sabby andthe investors in the registered direct offering unregistered warrants to purchase an aggregate of 37,256 shares of common stock. The registered direct offering closed on November 3, 2016, and the registrant concurrently sold 700up to 19,196 shares of the Series D Convertible Preferred Stock and warrants to purchase 35,295 shares of common stock. The remaining 200 shares of Series D Convertible Preferred Stock and warrants to purchase 1,961 shares of common stock were issued and sold at a second closing on January 11, 2017. The Series D Convertible Preferred Stock had a stated value of $1,000 per share and a conversion price of $102.00 (as adjusted) subject to further adjustment and may be converted to shares of common stock at any time following the receipt of stockholder approval of such issuance upon conversion. Each warrant became exercisable beginning on the day that is the later of the date stockholder approval of the issuance of common stock underlying such warrants is obtained or the six month anniversary of the date of issuance at an exercise price of $108.00 per share (as adjusted), subject to further adjustment as provided therein, and terminate five years thereafter. Northland Securities, Inc. acted as placement agent and the registrant issued Northland Securities, Inc. and its designees warrants to purchase an aggregate of 2,234 shares of common stock, with an exercise price of $127.60 per share. Subject to limited exceptions, a holder of Series D Convertible Preferred Stock or warrants will not have the right to convert or exercise if the holder, together with its affiliates, would beneficially own over 4.99% of the number of shares of the registrant’s common stock outstanding immediately after giving effect to such exercise; provided, however, that upon not less than 61 days’ prior notice, the holder may increase the limitation, provided that in no event will the limitation exceed 9.99%. The Series D Convertible Preferred Stock and the warrants were issued pursuant to an exemption from the registration requirement of the Securities Act provided in Section 4(a)(2) of the Securities Act and/or Regulation D.
On February 15, 2017, the registrant entered into a letter agreement with Sabby, to incent the cash exercise of the warrants held by Sabby on or before March 31, 2017 (the “Exercise Period”). In exchange for any such exercise, the registrant agreed to provide Sabby replacement warrants (the “Replacement Warrants”) to purchase the same number of shares of common stock as were issued upon exercise of the exercised warrants, with an exercise price equal to the consolidated closing bid price of the registrant’s common stock on the date

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of issuance. The agreement also (i) amends the definition of “Beneficial Ownership Limitation” in the existing warrants to mean, solely for purposes of any exercises of warrants that occur during the Exercise Period, “9.99%” and (ii) amends the Initial Exercise Date of the existing warrants issued on November 3, 2016 and January 11, 2017 so that such warrants are exercisable on or after the receipt of stockholder approval. Since such stockholder approval was received on January 9, 2017, such warrants were immediately exercisable as of the date of the agreement. The Replacement Warrants will be in the same form as the exercised warrants except the exercise price will not be subject to reduction for subsequent equity issuances and (ii) the Replacement Warrants will not allow Sabby to demand that the registrant purchase the Replacement Warrants in the event of a fundamental transaction involving the registrant. Concurrent with the signing of the agreement, Sabby exercised warrants to purchase 5,221 shares of common stock for cash proceeds of approximately $564,000, and the registrant issued Replacement Warrants to purchase 5,221 shares of common stock at an exercise price of $99.80$42.30 per share. From March 10, 2017 to March 28, 2017, Sabby exercised warrants to purchase 38,175 shares of common stock for cash proceeds of approximately $1.4 million, and the registrant issued Replacement Warrants to purchase 38,175 shares of common stock with exercise prices equal to the closing consolidated bid price of its common stock available onshare, which were exercisable six months from the date of issuance, (rangingand will expire five years from $34.60 to $75.40 per share). The Replacement Warrants are issuedthe initial exercise date. This issuance was made pursuant to anthe exemption from the registration requirement of the Securities Act providedcontained in Section 4(a)(2) of the Securities Act and/Act. Ladenburg Thalmann acted as lead placement agent and WestPark Capital, Inc. acted as co-placement agent in connection with the private placement.

On November 6, 2019, the registrant closed on a registered direct offering of its common stock, or Regulation D.

common equivalents, and in a concurrent private placement, the registrant agreed to issue to the investors in the registered direct offering unregistered warrants to purchase up to 40,638 shares of the registrant’s common stock at an exercise price of $29.83 per share, which were exercisable upon the

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date of issuance, and will expire five years from the initial exercise date. This issuance was made pursuant to the exemption from registration contained in Section 4(a)(2) of the Securities Act. Ladenburg Thalmann acted as placement agent in connection with the private placement.
On March 23, 2020, the registrant closed on a registered direct offering of its common stock, or common equivalents, and in a concurrent private placement, the registrant agreed to issue to the investors in the registered direct offering unregistered warrants to purchase up to 138,715 shares of the registrant’s common stock at an exercise price of $11.18 per share, which were exercisable upon the six-month anniversary of the date of issuance, and will expire five years from the date of issuance. This issuance was made pursuant to the exemption from registration contained in Section 4(a)(2) of the Securities Act. Ladenburg Thalmann acted as placement agent in connection with the private placement.
On April 1, 2020, the registrant closed on a registered direct offering of its common stock, or common equivalents, and in a concurrent private placement, the registrant agreed to issue to the investors in the registered direct offering unregistered warrants to purchase up to 85,506 shares of the registrant’s common stock at an exercise price of $11.15 per share, which were exercisable upon the date of issuance, and will expire five and a half years from the initial exercise date. This issuance was made pursuant to the exemption from registration contained in Section 4(a)(2) of the Securities Act. Ladenburg Thalmann acted as placement agent in connection with the private placement.
On May 5, 2020, the registrant closed on a registered direct offering of its common stock, or common equivalents, and in a concurrent private placement, the registrant agreed to issue to the investors in the registered direct offering unregistered warrants to purchase up to 59,966 shares of the registrant’s common stock at an exercise price of $12.30 per share, which were exercisable upon the date of issuance, and will expire five and a half years from the initial exercise date. This issuance was made pursuant to the exemption from registration contained in Section 4(a)(2) of the Securities Act. Ladenburg Thalmann acted as placement agent in connection with the private placement.
Item 16.
Exhibits and Financial Statement Schedules.

(a) Exhibits

See the Exhibit Index attached toThe following exhibits are filed as part of this Registration Statement, which is incorportated by reference herein.registration statement:

 
 
Incorporated By Reference
 
 
Exhibit
Number
Exhibit
Description
Form
File
Number
Date of First
Filing
Exhibit
Number
Filed
Herewith
Form of Underwriting Agreement
 
 
 
 
X
 
 
 
 
 
 
 
Asset Purchase Agreement between Sunshine Heart, Inc. and Gambro UF Solutions, Inc. dated August 5, 2016
8-K
001-35312
August 8, 2016
2.1
 
 
 
 
 
 
 
 
Fourth Amended and Restated Certificate of Incorporation
10
001-35312
February 1, 2012
3.1
 
 
 
 
 
 
 
 
Certificate of Amendment to the Fourth Amended and Restated Certificate of Incorporation
8-K
001-35312
January 13, 2017
3.1
 
 
 
 
 
 
 
 
Certificate of Amendment to the Fourth Amended and Restated Certificate of Incorporation
8-K
001-35312
May 23, 2017
3.1
 
 
 
 
 
 
 
 
Certificate of Amendment to the Fourth Amended and Restated Certificate of Incorporation
8-K
001-35312
October 12, 2017
3.1
 
 
 
 
 
 
 
 
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Incorporated By Reference
 
 
Exhibit
Number
Exhibit
Description
Form
File
Number
Date of First
Filing
Exhibit
Number
Filed
Herewith
Certificate of Amendment to the Fourth Amended and Restated Certificate of Incorporation
8-K
001-35312
January 2, 2019
3.1
 
 
 
 
 
 
 
 
Certificate of Amendment to the Fourth Amended and Restated Certificate of Incorporation
8-K/A
001-35312
October 16, 2020
3.1
 
 
 
 
 
 
 
 
Certificate of Amendment to the Fourth Amended and Restated Certificate of Incorporation
8-K
001-35312
April 27, 2021
3.1
 
 
 
 
 
 
 
 
Second Amended and Restated Bylaws
8-K
001-35312
April 27, 2021
3.2
 
 
 
 
 
 
 
 
Form of Certificate of Designation of Series A Junior Participating Preferred Stock
8-K
001-35312
June 14, 2013
3.1
 
 
 
 
 
 
 
 
Form of Certificate of Designation of Preferences, Rights and Limitations of Series F Convertible Preferred Stock
S-1/A
333-221010
November 17, 2017
3.7
 
 
 
 
 
 
 
 
Form of Certificate of Designation of Preferences, Rights and Limitations of Series I Convertible Preferred Stock
 
 
 
 
X
 
 
 
 
 
 
 
Warrant to Purchase Stock, dated February 18, 2015, issued to Silicon Valley Bank
8-K
001-35312
February 19, 2015
4.1
 
 
 
 
 
 
 
 
Warrant to Purchase Stock, dated February 18, 2015, issued to Life Science Loans, LLC
8-K
001-35312
February 19, 2015
4.2
 
 
 
 
 
 
 
 
Form of Common Stock Purchase Warrant issued pursuant to the Securities Purchase Agreement, dated July 20, 2016, among the Company and the purchasers signatory thereto
8-K
001-35312
July 22, 2016
4.2
 
 
 
 
 
 
 
 
Form of Common Stock Purchase Warrant issued to Northland Securities, Inc.
8-K
001-35312
July 22, 2016
4.3
 
 
 
 
 
 
 
 
Registration Rights Agreement between Sunshine Heart, Inc. and Gambro UF Solutions, Inc. dated August 5, 2016
8-K
001-35312
August 8, 2016
4.1
 
 
 
 
 
 
 
 
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Incorporated By Reference
 
 
Exhibit
Number
Exhibit
Description
Form
File
Number
Date of First
Filing
Exhibit
Number
Filed
Herewith
Form of Common Stock Purchase Warrant issued pursuant to the Securities Purchase Agreement, dated October 30, 2016, among the Company and the purchasers signatory thereto
8-K
001-35312
October 31, 2016
4.1
 
 
 
 
 
 
 
 
Form of Common Stock Purchase Warrant issued pursuant to the Letter Agreement between the Company and the purchasers signatory thereto, dated February 15, 2017
8-K
001-35312
February 16, 2017
4.1
 
 
 
 
 
 
 
 
Form of Common Stock Purchase Warrant issued pursuant to the Underwriting Agreement between the Company and Ladenburg Thalmann & Co. Inc., dated April 19, 2017
S-1/A
333-216841
April 5, 2017
4.8
 
 
 
 
 
 
 
 
Form of Warrant to Purchase Shares of Common Stock
S-1/A
333-221010
November 17, 2017
4.9
 
 
 
 
 
 
 
 
Form of Series 1 and Series 2 Warrant to Purchase Shares of Common Stock
S-1/A
333-209102
February 25, 2019
4.10
 
 
 
 
 
 
 
 
Common Stock Purchase Warrant, dated May 30, 2019, between the Company and Redington, Inc.
10-Q
001-35312
August 8, 2019
4.1
 
 
 
 
 
 
 
 
Form of Common Stock Purchase Warrant issued pursuant to the Securities Purchase Agreement, dated October 23, 2019, among the Company and the purchasers signatory thereto
8-K
001-35312
October 23, 2019
4.1
 
 
 
 
 
 
 
 
Form of Common Stock Purchase Warrant issued pursuant to the Securities Purchase Agreement, dated November 4, 2019, among the Company and the purchasers signatory thereto
8-K
001-35312
November 4, 2019
4.1
 
 
 
 
 
 
 
 
Form of Common Stock Pre-Funded Purchase Warrant issued pursuant to the Securities Purchase Agreement, dated November 4, 2019, among the Company and the purchasers signatory thereto
8-K
001-35312
November 4, 2019
4.2
 
 
 
 
 
 
 
 
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Incorporated By Reference
 
 
Exhibit
Number
Exhibit
Description
Form
File
Number
Date of First
Filing
Exhibit
Number
Filed
Herewith
Form of Common Stock Purchase Warrant
S-1/A
333-235385
January 23, 2020
4.15
 
 
 
 
 
 
 
 
Form of Common Stock Purchase Warrant issued pursuant to the Securities Purchase Agreement, dated March 19, 2020, among the Company and the purchasers identified on the signature pages thereto
8-K
001-35312
March 20, 2020
4.1
 
 
 
 
 
 
 
 
Form of Common Stock Purchase Warrant issued pursuant to the Securities Purchase Agreement, dated March 30, 2020, among the Company and the purchasers identified on the signature pages thereto
8-K
001-35312
March 30, 2020
4.1
 
 
 
 
 
 
 
 
Form of Common Stock Purchase Warrant issued pursuant to the Securities Purchase Agreement, dated May 1, 2020, among the Company and the purchasers identified on the signature pages thereto
8-K
001-35312
May 4, 2020
4.1
 
 
 
 
 
 
 
 
Form of Warrant to Purchase Shares of Common Stock
S-1/A
333-24145
August 17, 2020
4.19
 
 
 
 
 
 
 
 
Warrant to purchase shares of common stock
 
 
 
 
X
 
 
 
 
 
 
 
Specimen of Common Stock Certificate
10
001-35312
September 30, 2011
4.1
 
 
 
 
 
 
 
 
Opinion of Honigman LLP
 
 
 
 
X
 
 
 
 
 
 
 
Patent License Agreement between Sunshine Heart, Inc. and Gambro UF Solutions, Inc. dated August 5, 2016
8-K
001-35312
August 8, 2016
10.1
 
 
 
 
 
 
 
 
Loan and Security Agreement between Sunshine Heart, Inc. and Silicon Valley Bank dated August 5, 2016
8-K
001-35312
August 8, 2016
10.2
 
 
 
 
 
 
 
 
Amended and Restated 2002 Stock Plan†
10
001-35312
December 16, 2011
10.2
 
 
 
 
 
 
 
 
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Incorporated By Reference
 
 
Exhibit
Number
Exhibit
Description
Form
File
Number
Date of First
Filing
Exhibit
Number
Filed
Herewith
Form of Notice of Stock Option Grant and Option Agreement for Amended and Restated 2002 Stock Plan†
10
001-35312
September 30, 2011
10.3
 
 
 
 
 
 
 
 
Second Amended and Restated 2011 Equity Incentive Plan, as amended†
14A
001-35312
July 27, 2012
App. A
 
 
 
 
 
 
 
 
Form of Stock Option Grant Notice and Option Agreement for 2011 Equity Incentive Plan†
10
001-35312
September 30, 2011
10.5
 
 
 
 
 
 
 
 
Form of Stock Option Grant Notice and Option Agreement (Senior Management) for 2011 Equity Incentive Plan†
10
001-35312
September 30, 2011
10.6
 
 
 
 
 
 
 
 
Form of Stock Option Grant Notice and Option Agreement (Director) for 2011 Equity Incentive Plan†
8-K
001-35312
September 18, 2012
10.1
 
 
 
 
 
 
 
 
Form of Stock Grant Notice and Award Agreement for 2011 Equity Incentive Plan†
8-K
001-35312
September 10, 2013
10.1
 
 
 
 
 
 
 
 
Form of Restricted Stock Unit Grant Notice and Agreement for 2011 Equity Incentive Plan†
8-K
001-35312
September 10, 2013
10.2
 
 
 
 
 
 
 
 
2013 Non-Employee Directors’ Equity Incentive Plan†
14A
001-35312
April 5, 2013
App. A
 
 
 
 
 
 
 
 
Form of Stock Option Grant Notice and Option Agreement for 2013 Non-Employee Directors’ Equity Incentive Plan†
8-K
001-35312
May 29, 2013
10.2
 
 
 
 
 
 
 
 
Form of Restricted Stock Unit Award Grant Notice and Agreement for 2013 Non-Employee Directors’ Equity Incentive Plan†
10-K
001-35312
March 20, 2015
10.11
 
 
 
 
 
 
 
 
New-Hire Equity Incentive Plan†
10-Q
001-35312
August 8, 2013
10.1
 
 
 
 
 
 
 
 
First Amendment to New-Hire Equity Incentive Plan†
10-Q
001-35312
November 12, 2013
10.1
 
 
 
 
 
 
 
 
Second Amendment to New-Hire Equity Incentive Plan†
S-8
333-202904
March 20, 2015
99.12
 
 
 
 
 
 
 
 
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Incorporated By Reference
 
 
Exhibit
Number
Exhibit
Description
Form
File
Number
Date of First
Filing
Exhibit
Number
Filed
Herewith
Third Amendment to New-Hire Equity Incentive Plan†
S-8
333-210215
March 15, 2016
99.13
 
 
 
 
 
 
 
 
Fourth Amendment to New-Hire Equity Incentive Plan†
8-K
001-35312
May 30, 2017
10.4
 
 
 
 
 
 
 
 
Fifth Amendment to New-Hire Equity Incentive Plan†
8-K
001-35312
January 18, 2018
10.1
 
 
 
 
 
 
 
 
Sixth Amendment to New-Hire Equity Incentive Plan†
10-Q
001-35312
August 8, 2019
10.2
 
 
 
 
 
 
 
 
Seventh Amendment to New-Hire Equity Incentive Plan†
8-K
001-35312
December 6, 2019
10.1
 
 
 
 
 
 
 
 
Eighth Amendment to New-Hire Equity Incentive Plan†
8-K/A
001-35312
February 25, 2021
10.1
 
 
 
 
 
 
 
 
Form of Stock Option Grant Notice and Option Agreement for New-Hire Equity Incentive Plan†
10-Q
001-35312
November 12, 2013
10.2
 
 
 
 
 
 
 
 
2017 Equity Incentive Plan†
8-K
001-35312
May 30, 2017
10.1
 
 
 
 
 
 
 
 
First Amendment to the 2017 Equity Incentive Plan†
14A
001-35312
September 11, 2020
App. A
 
 
 
 
 
 
 
 
Form of Stock Option Grant Notice and Option Agreement for 2017 Equity Incentive Plan†
8-K
001-35312
May 30, 2017
10.2
 
 
 
 
 
 
 
 
Form of Restricted Stock Unit Grant Notice and Restricted Stock Unit Agreement for 2017 Equity Incentive Plan†
8-K
001-35312
May 30, 2017
10.3
 
 
 
 
 
 
 
 
Nuwellis, Inc. 2021 Inducement Plan†
8-K
001-35312
May 20, 2021
10.1
 
 
 
 
 
 
 
 
First Amendment to the 2021 Inducement Plan†
8-K
001-35312
April 21, 2022
10.1
 
 
 
 
 
 
 
 
Form of Stock Option Grant Notice, Option Agreement and Notice of Exercise under the Nuwellis, Inc. 2021 Inducement Plan†
8-K
001-35312
May 20, 2021
10.2
 
 
 
 
 
 
 
 
Form of Indemnity Agreement for the Company’s executive officers and directors†
10
001-35312
September 30, 2011
10.1
 
 
 
 
 
 
 
 
II-8

TABLE OF CONTENTS

 
 
Incorporated By Reference
 
 
Exhibit
Number
Exhibit
Description
Form
File
Number
Date of First
Filing
Exhibit
Number
Filed
Herewith
Form of Change in Control Agreement for the Company’s executive officers†
10-K
001-35312
March 20, 2015
10.16
 
 
 
 
 
 
 
 
Non-Employee Director Compensation Policy (effective August 18, 2021)†
10-Q
001-35312
November 10, 2021
10.2
 
 
 
 
 
 
 
 
Lease Agreement dated October 21, 2011 by and between the Company and Silver Prairie Crossroads, LLC
10
001-35312
December 16, 2011
10.18
 
 
 
 
 
 
 
 
Second Amendment to Lease, dated as of April 20, 2015, by and between the Company and Capital Partners Industrial Fund I, LLLP dba Prairie Crossroads Business Center
8-K
001-35312
April 23, 2015
10.1
 
 
 
 
 
 
 
 
Third Amendment to Lease, dated as of August 3, 2018, by and between the Company and Capital Partners Industrial Fund I, LLLP
10-Q
001-35312
November 7, 2018
10.2
 
 
 
 
 
 
 
 
Fourth Amendment to Lease, dated as of November 18, 2021, by and between the Company and Capital Partners Industrial Fund I, LLLP
8-K
01-35312
November 23, 2021
10.1
 
 
 
 
 
 
 
 
Executive Employment Agreement between Sunshine Heart, Inc. and John L. Erb, dated March 1, 2016†
8-K
001-35312
March 2, 2016
10.1
 
 
 
 
 
 
 
 
Letter Agreement dated February 15, 2017 among the Company, Sabby Volatility Warrant Master Fund, Ltd. and Sabby Healthcare Master Fund, Ltd.
8-K
001-35312
February 16, 2017
10.1
 
 
 
 
 
 
 
 
Warrant Agency Agreement between the Company and American Stock Transfer & Trust Company, LLC dated April 24, 2017
8-K
001-35312
April 25, 2017
10.1
 
 
 
 
 
 
 
 
Warrant Agency Agreement, by and between CHF Solutions, Inc. and American Stock Transfer & Trust Company, LLC dated November 27, 2017
8-K
001-35312
November 28, 2017
10.1
 
 
 
 
 
 
 
 
Form of Warrant Reprice Agreement
8-K
001-35312
June 29, 2018
10.1
 
 
 
 
 
 
 
 
II-9

TABLE OF CONTENTS

 
 
Incorporated By Reference
 
 
Exhibit
Number
Exhibit
Description
Form
File
Number
Date of First
Filing
Exhibit
Number
Filed
Herewith
Consulting Agreement, dated as of January 28, 2019, between CHF Solutions, Inc. and Steve Brandt†
10-K
001-35312
February 21, 2019
10.44
 
 
 
 
 
 
 
 
Warrant Agency Agreement, dated as of March 12, 2019, between the Company and American Stock Transfer & Trust Company, LLC
8-K
001-35312
March 13, 2019
4.2
 
 
 
 
 
 
 
 
Underwriting Agreement, dated as of March 8, 2019, by and between the Company and Ladenburg Thalmann & Co. Inc.
8-K
001-35312
March 13, 2019
1.1
 
 
 
 
 
 
 
 
Form of Employee Proprietary Information, Inventions Assignment and Non-Competition Agreement for the Company’s employees, including executive officers†
10-Q
001-35312
May, 9, 2019
10.3
 
 
 
 
 
 
 
 
Offer Letter, by and between the Company and Nestor Jaramillo, dated April 12, 2019†
10-Q
001-35312
May 9, 2019
10.5
 
 
 
 
 
 
 
 
Placement Agency Agreement, dated as of October 23, 2019, by and between the Company and Ladenburg Thalmann & Co. Inc.
8-K
001-35312
October 23, 2019
1.1
 
 
 
 
 
 
 
 
Form of Securities Purchase Agreement, dated as of October 23, 2019, by and among the Company and the purchasers identified on the signature pages thereto
8-K
001-35312
October 23, 2019
10.1
 
 
 
 
 
 
 
 
Placement Agency Agreement, dated as of November 4, 2019, by and between the Company and Ladenburg Thalmann & Co. Inc.
8-K
001-35312
November 4, 2019
1.1
 
 
 
 
 
 
 
 
Form of Securities Purchase Agreement, dated as of November 4, 2019, by and among the Company and the purchasers identified on the signature pages thereto
8-K
001-35312
November 4, 2019
10.1
 
 
 
 
 
 
 
 
Underwriting Agreement dated as of January 24, 2020, by and between the Company and Ladenburg Thalmann & Co. Inc.
8-K
001-35312
January 29, 2020
1.1
 
 
 
 
 
 
 
 
II-10

TABLE OF CONTENTS

 
 
Incorporated By Reference
 
 
Exhibit
Number
Exhibit
Description
Form
File
Number
Date of First
Filing
Exhibit
Number
Filed
Herewith
Warrant Agency Agreement, dated as of January 28, 2020, between the Company and American Stock Transfer & Trust Company, LLC
8-K
001-35312
January 29, 2020
4.2
 
 
 
 
 
 
 
 
Placement Agency Agreement, dated as of March 19, 2020, by and between the Company and Ladenburg Thalmann & Co. Inc.
8-K
001-35312
March 20, 2020
1.1
 
 
 
 
 
 
 
 
Form of Securities Purchase Agreement, dated as of March 19, 2020, by and among the Company and the purchasers identified on the signature pages thereto
8-K
001-35312
March 20, 2020
10.1
 
 
 
 
 
 
 
 
Placement Agency Agreement, dated as of March 30, 2020, by and between the Company and Ladenburg Thalmann & Co. Inc.
8-K
001-35312
March 30, 2020
1.1
 
 
 
 
 
 
 
 
Form of Securities Purchase Agreement, dated as of March 30, 2020, by and among the Company and the purchasers identified on the signature pages thereto
8-K
001-35312
March 30, 2020
10.1
 
 
 
 
 
 
 
 
Placement Agency Agreement, dated as of May 1, 2020, by and between the Company and Ladenburg Thalmann & Co. Inc.
8-K
001-35312
May 4, 2020
1.1
 
 
 
 
 
 
 
 
Form of Securities Purchase Agreement, dated as of May 1, 2020, by and among the Company and the purchasers identified on the signature pagers thereto
8-K
001-35312
May 4, 2020
10.1
 
 
 
 
 
 
 
 
Lock-Up and Voting Agreement
S-1/A
333-24145
August 17, 2020
4.20
 
 
 
 
 
 
 
 
Underwriting Agreement, dated as of August 19, 2020, by and between the Company and Ladenburg Thalman & Co. Inc.
8-K
0001-35312
August 21, 2020
1.1
 
 
 
 
 
 
 
 
Warrant Agency Agreement, dated as of August 21, 2020, between the Company and American Stock Transfer & Trust Company, LLC
8-K
001-35312
August 21, 2020
4.2
 
 
 
 
 
 
 
 
II-11

TABLE OF CONTENTS

 
 
Incorporated By Reference
 
 
Exhibit
Number
Exhibit
Description
Form
File
Number
Date of First
Filing
Exhibit
Number
Filed
Herewith
Executive Employment Agreement, dated January 16, 2021, by and between the Company and Nestor Jaramillo, Jr.†
8-K
001-35312
January 19, 2021
10.1
 
 
 
 
 
 
 
 
Executive Employment Agreement, dated January 16, 2021, by and between the Company and John L. Erb†
8-K
001-35312
January 19, 2021
10.2
 
 
 
 
 
 
 
 
Underwriting Agreement, dated March 17, 2021, between the Company and Ladenburg Thalmann & Co., Inc. as the Representative of the several underwriters named in Schedule I thereto
8-K
001-35312
March 17, 2021
1.1
 
 
 
 
 
 
 
 
Offer Letter by and between the Company and George Montague, effective as of June 28, 2021†
8-K
001-35312
June 22, 2021
10.1
 
 
 
 
 
 
 
 
Offer letter by and between the Company and Neil P. Ayotte, effective as of June 7, 2021†
10-Q
001-35312
August 12, 2021
10.4
 
 
 
 
 
 
 
 
Underwriting Agreement dated September 15, 2021, between the Company and Ladenburg Thalmann & Co. Inc., as the Representative of the several underwriters named in Schedule I thereto
8-K
001-35312
September 17, 2021
1.1
 
 
 
 
 
 
 
 
Form of Warrant Agency Agreement
 
 
 
 
X
 
 
 
 
 
 
 
Leak-Out Agreement
 
 
 
 
X
 
 
 
 
 
 
 
List of Subsidiaries
10-K
001-35312
March 3, 2022
21
 
 
 
 
 
 
 
 
Consent of Baker Tilly US, LLP
 
 
 
 
X
 
 
 
 
 
 
 
Consent of Honigman LLP
 
 
 
Included in Exhibit 5.1
 
 
 
 
 
 
 
 
Power of Attorney
S-1
333-267368
September 9, 2022
24
 
 
 
 
 
 
 
 
Filing Fee Table
 
 
 
 
X

Indicates management compensatory plan, contract or arrangement.
II-12

TABLE OF CONTENTS

Item 17.
Undertakings.

The undersigned registrant hereby undertakes that, for the purpose of determining any liability under the Securities Act of 1933, as amended, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

The undersigned registrant hereby undertakes to remove from registration by means of a post-effective amendment any of the securities being registered that remain unsold at the termination of the offering.

The undersigned registrant hereby undertakes that, for the purposes of determining liability to any purchaser, if the registrant is subject to Rule 430C, each prospectus filed pursuant to Rule 424(b) as part of a registration statement relating to an offering, other than registration statements relying on Rule 430B or other than prospectuses filed in reliance on Rule 430A, shall be deemed to be part of and included in the registration statement as of the date it is first used after effectiveness. Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such first use, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such date of first use.

The undersigned registrant hereby undertakes that, for the purpose of determining liability of the registrant under the Securities Act of 1933 to any purchaser in the initial distribution of the securities:

The undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:

(1)
The undersigned registrant hereby undertakes:
a.
That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
b.
To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.
c.
For purposes of determining any liability under the Securities Act of 1933, the information omitted from the form of prospectus filed as part of this registration statement in reliance upon Rule 430A and contained in a form of prospectus filed by the registrant pursuant to Rule 424(b) (1) or (4) or 497(h) under the Securities Act shall be deemed to be part of this registration statement as of the time it was declared effective.

For the purpose of determining any liability under the Securities Act of 1933, each post-effective amendment that contains a form of prospectus shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
d.
That, for the purpose of determining liability of the registrant under the Securities Act of 1933 to any purchaser in the initial distribution of the securities:

The undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:
(i)
Any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424;
(ii)
Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by the undersigned registrant;
(iii)
The portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant or its securities provided by or on behalf of the undersigned registrant; and
(iv)
Any other communication that is an offer in the offering made by the undersigned registrant to the purchaser.

Insofar as indemnification for liabilities arising under the Securities Act of 1933, as amended, may be permitted to directors, officers and controlling persons of the undersigned registrant according the foregoing provisions, or otherwise, the undersigned registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act of 1933, as amended, and will be governed by the final adjudication of such issue.

The undersigned registrant hereby undertakes that, for purposes of determining any liability under the Securities Act of 1933, each filing of the registrant’s annual report pursuant to section 13(a) or section 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan’s annual report

(2)
Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Act, and will be governed by the final adjudication of such issue.
(3)
The undersigned registrant hereby undertakes that, for purposes of determining any liability under the Securities Act of 1933, each filing of the registrant’s annual report pursuant to section 13(a) or section 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan’s annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

II-13

II-5


TABLE OF CONTENTS

pursuant to section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

SIGNATURES

II-6

TABLE OF CONTENTS

EXHIBIT INDEX

 
 
Incorporated By Reference
 
 
 
Exhibit
Number
Exhibit
Description
Form
File
Number
Date of
First Filing
Exhibit
Number
Filed
Herewith
Furnished
Herewith
Form of Underwriting Agreement
 
 
 
 
X
 
 
 
 
 
 
 
 
 
 2.1
Asset Purchase Agreement between Sunshine Heart, Inc. and Gambro UF Solutions, Inc. dated August 5, 2016
8-K
001-35312
August 8, 2016
2.1
 
 
 
 
 
 
 
 
 
 
 3.1
Fourth Amended and Restated Certificate of Incorporation
10
001-35312
February 1, 2012
3.1
 
 
 
 
 
 
 
 
 
 
 3.2
Certificate of Amendment to the Fourth Amended and Restated Certificate of Incorporation
8-K
001-35312
January 13, 2017
3.1
 
 
 
 
 
 
 
 
 
 
 3.3
Certificate of Amendment to Fourth Amended and Restated Certificate of Incorporation
8-K
001-35312
May 23, 2017
3.1
 
 
 
 
 
 
 
 
 
 
 3.4
Certificate of Amendment to Fourth Amended and Restated Certificate of Incorporation
8-K
001-35312
October 12, 2017
3.1
 
 
 
 
 
 
 
 
 
 
 3.5
Second Amended and Restated Bylaws
8-K
001-35312
May 23, 2017
3.2
 
 
 
 
 
 
 
 
 
 
 3.6
Form of Certificate of Designation of Series A Junior Participating Preferred Stock
8-K
001-35312
June 14, 2013
3.1
 
 
 
 
 
 
 
 
 
 
 3.7
Form of Certificate of Designation of Preferences, Rights and Limitations of Series F Convertible Preferred Stock.
 
 
 
 
X
 
 
 
 
 
 
 
 
 
Warrant to Purchase Stock, dated February 18, 2015, issued to Silicon Valley Bank
8-K
001-35312
February 19, 2015
4.1
 
 
 
 
 
 
 
 
 
 
Warrant to Purchase Stock, dated February 18, 2015, issued to Life Science Loans, LLC
8-K
001-35312
February 19, 2015
4.2
 
 
 
 
 
 
 
 
 
 
 4.3
Form of common stock Purchase Warrant issued pursuant to the Securities Purchase Agreement, dated July 20, 2016, among the Company and the purchasers signatory thereto
8-K
001-35312
July 22, 2016
4.2
 
 
 
 
 
 
 
 
 
 
 4.4
Form of common stock Purchase Warrant issued to Northland Securities, Inc.
8-K
001-35312
July 22, 2016
4.3
 
 
 
 
 
 
 
 
 
 
 4.5
Registration Rights Agreement between Sunshine Heart, Inc. and Gambro UF Solutions, Inc. dated August 5, 2016
8-K
001-35312
August 8, 2016
4.1
 
 

TABLE OF CONTENTS

 
 
Incorporated By Reference
 
 
 
Exhibit
Number
Exhibit
Description
Form
File
Number
Date of
First Filing
Exhibit
Number
Filed
Herewith
Furnished
Herewith
 4.6
Form of common stock Purchase Warrant issued pursuant to the Securities Purchase Agreement, dated October 30, 2016, among the Company and the purchasers signatory thereto
8-K
001-35312
October 31, 2016
4.1
 
 
 
 
 
 
 
 
 
 
 4.7
Form of common stock Purchase Warrant issued pursuant to the Letter Agreement between the Company and the purchasers signatory thereto, dated February 15, 2017
8-K
001-35312
February 16, 2017
4.1
 
 
 
 
 
 
 
 
 
 
 4.8
Form of common stock Purchase Warrant issued pursuant to the Underwriting Agreement between the Company and Ladenburg Thalmann & Co. Inc., dated April 19, 2017
S-1/A
333-216841
April 4, 2017
4.8
 
 
 
 
 
 
 
 
 
 
 4.9
Form of Warrant to purchase shares of common stock.
 
 
 
 
X
 
 
 
 
 
 
 
 
 
 5.1
Opinion of Honigman Miller Schwartz and Cohn LLP
 
 
 
 
X
 
 
 
 
 
 
 
 
 
Securities Purchase Agreement, dated July 20, 2016 among the Company and the purchasers signatory thereto
8-K
001-35312
July 22, 2016
10.1
 
 
 
 
 
 
 
 
 
 
Patent License Agreement between Sunshine Heart, Inc. and Gambro UF Solutions, Inc. dated August 5, 2016
8-K
001-35312
August 8, 2016
10.1
 
 
 
 
 
 
 
 
 
 
Loan and Security Agreement between Sunshine Heart, Inc. and Silicon Valley Bank dated August 5, 2016
8-K
001-35312
August 8, 2016
10.2
 
 
 
 
 
 
 
 
 
 
Amended and Restated 2002 Stock Plan†
10
001-35312
December 16, 2011
10.2
 
 
 
 
 
 
 
 
 
 
Form of Notice of Stock Option Grant and Option Agreement for Amended and Restated 2002 Stock Plan†
10
001-35312
September 30, 2011
10.3
 
 
 
 
 
 
 
 
 
 
Second Amended and Restated 2011 Equity Incentive Plan, as amended†
14A
001-35312
July 27, 2012
App. A
 
 
 
 
 
 
 
 
 
 
Form of Stock Option Grant Notice and Option Agreement for 2011 Equity Incentive Plan†
10
001-35312
September 30, 2011
10.5
 
 
 
 
 
 
 
 
 
 
Form of Stock Option Grant Notice and Option Agreement (Senior Management) for 2011 Equity Incentive Plan†
10
001-35312
September 30, 2011
10.6
 
 

TABLE OF CONTENTS

 
 
Incorporated By Reference
 
 
 
Exhibit
Number
Exhibit
Description
Form
File
Number
Date of
First Filing
Exhibit
Number
Filed
Herewith
Furnished
Herewith
Form of Stock Option Grant Notice and Option Agreement (Director) for 2011 Equity Incentive Plan†
8-K
001-35312
September 18, 2012
10.1
 
 
 
 
 
 
 
 
 
 
Form of Stock Grant Notice and Award Agreement for 2011 Equity Incentive Plan†
8-K
001-35312
September 10, 2013
10.1
 
 
 
 
 
 
 
 
 
 
Form of Restricted Stock Unit Grant Notice and Agreement for 2011 Equity Incentive Plan†
8-K
001-35312
September 10, 2013
10.2
 
 
 
 
 
 
 
 
 
 
2013 Non-Employee Directors’ Equity Incentive Plan†
14A
001-35312
April 5, 2013
App. A
 
 
 
 
 
 
 
 
 
 
Form of Stock Option Grant Notice and Option Agreement for 2013 Non-Employee Directors’ Equity Incentive Plan†
10-K
001-35312
May 29, 2013
10.2
 
 
 
 
 
 
 
 
 
 
Form of Restricted Stock Unit Award Grant Notice and Agreement for 2013 Non-Employee Directors’ Equity Incentive Plan†
10-K
001-35312
March 20, 2015
10.11
 
 
 
 
 
 
 
 
 
 
New-Hire Equity Incentive Plan†
10-Q
001-35312
August 8, 2013
10.1
 
 
 
 
 
 
 
 
 
 
First Amendment to New-Hire Equity Incentive Plan†
10-Q
001-35312
November 12, 2013
10.1
 
 
 
 
 
 
 
 
 
 
Second Amendment to New-Hire Equity Incentive Plan†
S-8
333-202904
March 20, 2015
99.12
 
 
 
 
 
 
 
 
 
 
Third Amendment to New-Hire Equity Incentive Plan†
S-8
333-210215
March 15, 2016
99.13
 
 
 
 
 
 
 
 
 
 
Fourth Amendment to New-Hire Equity Incentive Plan†
8-K
001-35312
May 30, 2017
10.4
 
 
 
 
 
 
 
 
 
 
Form of Stock Option Grant Notice and Option Agreement for New-Hire Equity Incentive Plan†
10-Q
001-35312
November 12, 2013
10.2
 
 
 
 
 
 
 
 
 
 
2017 Equity Incentive Plan†
8-K
001-35312
May 30, 2017
10.1
 
 
 
 
 
 
 
 
 
 
Form of Stock Option Grant Notice and Option Agreement for 2017 Equity Incentive Plan†
8-K
001-35312
May 30, 2017
10.2
 
 
 
 
 
 
 
 
 
 
Form of Restricted Stock Unit Grant Notice and Restricted Stock Unit Agreement for 2017 Equity Incentive Plan†
8-K
001-35312
May 30, 2017
10.3
 
 

TABLE OF CONTENTS

 
 
Incorporated By Reference
 
 
 
Exhibit
Number
Exhibit
Description
Form
File
Number
Date of
First Filing
Exhibit
Number
Filed
Herewith
Furnished
Herewith
Form of Indemnity Agreement for the Company’s executive officers and directors†
10
001-35312
September 30, 2011
10.1
 
 
 
 
 
 
 
 
 
 
Form of Change in Control Agreement for the Company’s executive officers†
10-K
001-35312
March 20, 2015
10.16
 
 
 
 
 
 
 
 
 
 
Non-Employee Director Compensation Policy†
10-Q
001-35312
August 8, 2013
10.2
 
 
 
 
 
 
 
 
 
 
Lease Agreement dated October 21, 2011 by and between the Company and Silver Prairie Crossroads, LLC
10
001-35312
December 16, 2011
10.18
 
 
 
 
 
 
 
 
 
 
Sales Agreement dated March 21, 2014 by and between the Company and Cowen and Company, LLC
S-3
333-194731
March 21, 2014
1.2
 
 
 
 
 
 
 
 
 
 
Second Amendment to Lease, dated as of April 20, 2015, by and between the Company and Capital Partners Industrial Fund I, LLLP dba Prairie Crossroads Business Center
8-K
001-35312
April 23, 2015
10.1
 
 
 
 
 
 
 
 
 
 
Separation and Release Agreement between the Company and David A. Rosa, dated November 30, 2015†
8-K
001-35312
November 30, 2015
99.1
 
 
 
 
 
 
 
 
 
 
Executive Employment Agreement between Sunshine Heart, Inc. and John L. Erb, dated March 1, 2016†
8-K
001-35312
March 2, 2016
10.1
 
 
 
 
 
 
 
 
 
 
Separation and Release Agreement by and between Sunshine Heart, Inc. and Brian J. Brown, dated February 3, 2016†
10-Q
001-35312
May 5, 2015
10.2
 
 
 
 
 
 
 
 
 
 
Separation and Release Agreement by and between Sunshine Heart, Inc. and Debra Kridner, dated January 24, 2016†
10-Q
001-35312
May 5, 2016
10.3
 
 
 
 
 
 
 
 
 
 
Claudia Drayton Retention Bonus Letter, dated as of December 12, 2016†
8-K
001-35312
December 16, 2016
10.1
 
 
 
 
 
 
 
 
 
 
Molly Wade Retention Bonus Letter, dated as of December 12, 2016†
S-1
333-221010
October 18, 2017
10.35
 
 
 
 
 
 
 
 
 
 
Letter Agreement dated February 15, 2017 among the Company, Sabby Volatility Warrant Master Fund, Ltd. and Sabby Healthcare Master Fund, Ltd.
8-K
003-35312
February 16, 2017
10.1
 
 

TABLE OF CONTENTS

 
 
Incorporated By Reference
 
 
 
Exhibit
Number
Exhibit
Description
Form
File
Number
Date of
First Filing
Exhibit
Number
Filed
Herewith
Furnished
Herewith
Offer Letter by and between the Company and Jim Breidenstein dated April 12, 2017
10-Q
001-35312
May 12, 2017
10.4
 
 
 
 
 
 
 
 
 
 
Warrant Agency Agreement between the Company and American Stock Transfer & Trust Company, LLC dated April 24, 2017
8-K
001-35312
April 25, 2017
10.1
 
 
 
 
 
 
 
 
 
 
Letter regarding unaudited interim financial information
S-1/A
333-221010
November 6, 2017
15.1
 
 
 
 
 
 
 
 
 
 
List of Subsidiaries
10-K
001-35312
March 8, 2017
21
 
 
 
 
 
 
 
 
 
 
Consent of Independent Registered Public Accounting Firm
 
 
 
 
X
 
 
 
 
 
 
 
 
 
Consent of Honigman Miller Schwartz & Cohn LLP
 
 
 
 
Included in Exhibit 5.1
 
 
 
 
 
 
 
 
 
Power of Attorney
S-1
333-221010
October 18, 2017
24.1
 
 
 
 
 
 
 
 
 
 
Report of Independent Registered Public Accounting Firm on June 30, 2017 financial statements
S-1/A
333-221010
November 6, 2017
99.1
 
 
Indicates management compensatory plan, contract or arrangement.

TABLE OF CONTENTS

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Eden Prairie, State of Minnesota, on this 13th29th day of November, 2017.

September, 2022.
 
CHF SOLUTIONS,NUWELLIS, INC.
 
 
 
 
By:
/s/ JOHN L. ERBNestor Jaramillo, Jr.
 
 
John L. ErbNestor Jaramillo, Jr.
 
 
Chief Executive Officer and Chairman of the Board

Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities and on the dates indicated.

Signature
Title
Date
 
 
 
/s/ JOHN L. ERB*
Principal Executive Officer
and Chairman of the Board
November 13, 2017September 29, 2022
John L. Erb
 
 
/s/ CLAUDIA DRAYTONNestor Jaramillo, Jr.
Principal Financial President, Chief Executive
Officer and Principal Accounting OfficerDirector
(principal executive officer)
November 13, 2017September 29, 2022
Claudia DraytonNestor Jaramillo, Jr.
 
*
Chief Financial Officer
(principal financial officer
and principal accounting officer)
September 29, 2022
George Montague
*
Director
September 29, 2022
Steve Brandt
*
Director
September 29, 2022
Maria Rosa Costanzo
*
Director
September 29, 2022
Jon W. Salveson
*
Director
September 29, 2022
Gregory Waller
*
Director
September 29, 2022
Warren Watson
*By:
/s/ Nestor Jaramillo, Jr.
 
 
Nestor Jaramillo, Jr.
Attorney-in-fact
*
Director
November 13, 2017
Steve Brandt
*
Director
November 13, 2017
Matthew Likens
*
Director
November 13, 2017
Jon W. Salveson
*
Director
November 13, 2017
Gregory Waller
*
Director
November 13, 2017
Warren Watson
 
* By:
/s/ JOHN L. ERB
John L. Erb
Attorney-in-fact

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