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

SCHEDULE 14A

Proxy Statement Pursuant to Section INFORMATION

PROXY STATEMENT PURSUANT TO SECTION 14(a) of
OF THE
SECURITIES EXCHANGE ACT OF 1934
Filed by the Securities Exchange Act of 1934 (Amendment No.          )

Registrant  
x                            Filed by a Party other than the Registrant  ☐

Check the appropriate box:
Filed by the Registrantý

Filed by a Party other than the Registranto

Check the appropriate box:

o

 

Preliminary Proxy Statement

o


Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

ý

x
Definitive Proxy Statement

o


Definitive Additional Materials

o


Soliciting Material under §240.14a-12


ALPINE IMMUNE SCIENCES, INC.
(Name of Registrant as Specified In Its Charter)
Payment of Filing Fee (Check all boxes that apply):
NIVALIS THERAPEUTICS, INC.

(Name of Registrant as Specified In Its Charter)


(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

ýx


No fee required.

o


Fee paid previously with preliminary materials.
Fee computed on table belowin exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.
(1)Title of each class of securities to which transaction applies:
(2)Aggregate number of securities to which transaction applies:
(3)Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):
(4)Proposed maximum aggregate value of transaction:
(5)Total fee paid:

o


Fee paid previously with preliminary materials.

o


Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.



(1)


Amount Previously Paid:
(2)Form, Schedule or Registration Statement No.:
(3)Filing Party:
(4)Date Filed:


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NIVALIS THERAPEUTICS,

alpineislogolga09a.jpg
ALPINE IMMUNE SCIENCES, INC.
3122 Sterling Circle
Boulder, CO 80301

NOTICE OF 2022 ANNUAL MEETING OF STOCKHOLDERS
to be held June 16, 2022
To Be Held On April 27, 2016

Dear Stockholder:

our Stockholders:

        You are cordially invited to attend theThe 2022 Annual Meeting of Stockholders (the "Annual Meeting") ofNIVALIS THERAPEUTICS, INC. Alpine Immune Sciences, Inc., a Delaware corporation.corporation, will be held as a virtual meeting via live webcast on the Internet on Thursday, June 16, 2022, at 1:30 p.m. Pacific Time, which means that you will be able to attend the meeting, vote and submit your questions via the Internet at www.virtualshareholdermeeting.com/ALPN2022. Because the meeting is completely virtual and being conducted via the Internet, stockholders will not be able to attend the meeting in person. The meeting will be held on Wednesday, April 27, 2016 at 1:30 p.m. local time at our corporate offices located at 3122 Sterling Circle, Boulder Colorado, 80301, for the following purposes:purposes as more fully described in the accompanying proxy statement:

Proposal 11.:  To elect twoas Class I directors the two nominees for director, each to serve untilnamed in the 2019 Annual Meeting of Stockholders and until his successor has been elected and qualified. Our Board of Directors (the "Board") intends to present the following individuals as its nominees for election as directors:attached proxy statement;
Proposal 22.:  To ratify the selection by the Audit Committee of the Board of Directorsappointment of Ernst & Young LLP as theour independent registered public accounting firm for our current fiscal year ending December 31, 2016;2022;
3.To approve, on an advisory basis, the compensation of our named executive officers; and


4.
To transact such other business as may properly come before the meeting or any adjournmentadjournments or postponementpostponements thereof.

        These items of business are more fully described in the Proxy Statement accompanying this notice.

The record date for the 2022 Annual Meeting is March 3, 2016. Only stockholders of recordApril 20, 2022. If you held our common stock at the close of business on that date, mayyou are entitled to vote at the meeting. For ten days prior to the annual meeting, a complete list of stockholders of record entitled to vote at the annual meeting will be available for examination by any stockholder for any purpose relevant to the annual meeting. If you would like to view the list, please contact our corporate secretary to schedule an appointment by calling (206) 788-4545 or any adjournment thereof.

writing to Alpine Immune Sciences, Inc., 188 East Blaine Street, Suite 200, Seattle, Washington 98102. The stockholder list will also be available online during the annual meeting at www.virtualshareholdermeeting.com/ALPN2022. Additional information regarding voting rights and the matters to be voted upon is presented in our proxy statement.

By Order of the Board of Directors


GRAPHIC



R. Michael Carruthers
Chief Financial Officer and Secretary



Boulder, CO



March 21, 2016


ImportantWe are mailing to our stockholders a Notice Regarding theof Internet Availability of Proxy Materials, or the Notice, containing instructions on how to access our proxy statement for our annual meeting and our annual report to stockholders over the 2016 Annual MeetingInternet. The Notice provides instructions on how to vote online or by telephone and includes instructions on how to receive a paper copy of Stockholdersproxy materials by mail. The Notice, our proxy statement and our annual report can be accessed directly at the following Internet address: www.proxyvote.com, using the control number located on your proxy card.

We appreciate your continued support and look forward to be Held on April 27, 2016. Our Notice of Annual Meeting, Proxy Statement and 2015 Annual Report are available at www.proxyvote.com.


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you joining our virtual meeting or receiving your proxy.

Page

QUESTIONS AND ANSWERS ABOUT THESE PROXY MATERIALS AND VOTING

1

PROPOSAL NO. 1—ELECTION OF DIRECTORS

6By order of the Board of Directors,

INFORMATION REGARDING THE BOARD OF DIRECTORS AND CORPORATE GOVERNANCE

8

PROPOSAL NO. 2—RATIFICATION OF SELECTION OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

17/s/ Mitchell H. Gold

EXECUTIVE OFFICERS

18
Mitchell H. Gold, M.D.
Executive Chairman and Chief Executive Officer

CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

19

SECTION 16(a) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE

22April 29, 2022

EXECUTIVE COMPENSATION

23

TRANSACTIONS WITH RELATED PERSONS

32

STOCKHOLDER PROPOSALS

36

HOUSEHOLDING OF PROXY MATERIALS

36

OTHER MATTERS

37Seattle, Washington


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NIVALIS THERAPEUTICS, INC.
3122 STERLING CIRCLE
BOULDER, CO 80301

PROXY STATEMENT
FOR THE 2016 ANNUAL MEETING OF STOCKHOLDERS

April 27, 2016


QUESTIONS AND ANSWERS ABOUT THESE PROXY MATERIALS AND VOTING

How do I attend the Annual Meeting?

        The meeting will be held on Wednesday, April 27, 2016 at 1:30 p.m. local time at the Nivalis corporate offices at 3122 Sterling Circle, Boulder Colorado, 80301. Directions to the Annual Meeting may be found at www.nivalis.com. Information on how to vote in person at the Annual Meeting is discussed below.

Who can vote at the Annual Meeting?

        Only stockholders of record at the close of business on March 3, 2016 will be entitled to vote at the Annual Meeting. On this record date, there were 15,462,030 shares of common stock outstanding and entitled to vote.

        If on March 3, 2016 your shares were registered directly in your name with our transfer agent, American Stock Transfer & Trust Company, LLC, then you are a stockholder of record. As a stockholder of record, you may vote in person at the meeting or vote by proxy.

YOUR VOTE IS IMPORTANT. Whether or not you plan to attend the meeting,2022 Annual Meeting, we urge you to submit your vote as instructed below, via the Internet, telephone or mail as soon as possible.


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PROXY STATEMENT
FOR 2022 ANNUAL MEETING OF STOCKHOLDERS
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alpineislogolga09a.jpg
ALPINE IMMUNE SCIENCES, INC.
188 East Blaine Street, Suite 200
Seattle, Washington 98102
PROXY STATEMENT
FOR 2022 ANNUAL MEETING OF STOCKHOLDERS
to be held on Thursday, June 16, 2022 at 1:30 p.m. Pacific Time
This proxy statement and the enclosed form of proxy are furnished in connection with solicitation of proxies by our board of directors for use at the 2022 annual meeting of stockholders, or the telephone, as promptly as possibleAnnual Meeting, to ensure your vote is counted. Alternatively, you may completebe held on Thursday, June 16, 2022 including any postponements, adjournments or continuations thereof. The Annual Meeting will be held virtually via live webcast on the Internet at www.virtualshareholdermeeting.com/ALPN2022 on June 16, 2022 at 1:30 p.m. Pacific Time. On or about April 29, 2022, we expect to mail to our stockholders a Notice of Internet Availability of Proxy Materials, or the Notice, containing instructions on how to access our proxy cardstatement for our Annual Meeting and our annual report to submit your vote by mail.

GENERAL INFORMATION
The information provided in the Name“question and answer” format below is for your convenience only and is merely a summary of a Brokerthe information contained in this proxy statement. You should read this entire proxy statement carefully. Information contained on, or Bank

        If on March 3, 2016 your shares were held,that can be accessed through, our website is not in your name, but rather in an account at a brokerage firm, bank, dealer or other similar organization, then you are the beneficial owner of shares held in "street name" and the proxy materials are being forwarded to you by that organization. The organization holding your account is consideredintended to be the stockholder of record for purposes of voting at the Annual Meeting. As a beneficial owner, you have the rightincorporated by reference into this proxy statement and references to direct your broker or other agent regarding how to vote the sharesour website address in your account. Youthis proxy statement are also invited to attend the Annual Meeting. However, since you are not the stockholder of record, you may not vote your shares in person at the meeting unless you request and obtain a valid proxy from your broker or other agent.

inactive textual references only.

What matters am I voting on?
You will be voting on:

        There are two proposals scheduled for a vote:

a proposal to ratify the Boardappointment of Ernst & Young LLP as our independent registered public accounting firm for the current fiscal year ending December 31, 2016.2022;

Tablea proposal for the approval, on an advisory basis, of Contentsthe compensation of our named executive officers; and

What if another matter isany other business that may properly broughtcome before the meeting?meeting.

        The Board knows

How does the board of no other mattersdirectors recommend I vote on these proposals?
Our board of directors recommends that will be presentedyou vote your shares:
“FOR” the two nominees named in this proxy statement for consideration atelection as Class I directors;
“FOR” the Annual Meeting. If any other matters are properly brought before the meeting, it is the intentionratification of the persons named in the accompanying proxy to vote on those matters in accordance with their best judgment.

How do I vote?

        You may either vote "For" all the nominees to the Board or you may "Withhold" your vote for any nominee you specify. With regard to your vote to ratify the selection by the Audit Committeeappointment of Ernst & Young LLP as our independent registered public accounting firm for the current fiscal year ending December 31, 2016, you may2022; and

“FOR” the approval, on an advisory basis, of the compensation of our named executive officers.
Who is entitled to vote "For"at the Annual Meeting?
Only holders of our common stock as of the close of business on April 20, 2022, the record date, are entitled to receive notice of and to vote at the Annual Meeting. In deciding all matters at the Annual Meeting, each stockholder will be entitled to one vote for each share of our common stock owned as of the record date. We do not have cumulative voting rights for the election of directors. As of the record date, there were 30,316,066 shares of our common stock outstanding and entitled to vote, and there were 27 stockholders of record, which number does not include approximately 4,018 beneficial owners of shares held in the name of a bank or "Against"brokerage firm. We do not have any outstanding shares of preferred stock.
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What is the difference between holding shares as a stockholder of record and as a beneficial owner?
Many of our stockholders hold their shares as beneficial owners through a brokerage firm or abstain from voting.

        The procedures for votingother nominee rather than directly in their own name. As summarized below, there are fairly simplesome distinctions between shares held of record and those owned beneficially through a broker or other nominee.

Registered Stockholders or Stockholders of Record. If your shares are summarized below:

        Ifyour name with our transfer agent, Broadridge Corporate Issuer Solutions, Inc., you are considered the stockholder of record with respect to those shares, and the Notice was provided to you directly by us. As the stockholder of record, you have the right to grant your voting proxy directly to our designated proxies, the individuals listed on the proxy card or to vote during the live webcast of the Annual Meeting by visiting www.virtualshareholdermeeting.com/ALPN2022.

Beneficial Owners. If your shares are held in a stock brokerage account or by a bank or other nominee, you are considered the beneficial owner of shares held in street name, and the Notice was forwarded to you by your broker or nominee, who is considered the stockholder of record with respect to those shares. As the beneficial owner, you have the right to direct your broker or nominee how to vote your shares. Beneficial owners are also invited to attend the Annual Meeting. However, since a beneficial owner is not the stockholder of record, you may not vote your shares during the Annual Meeting unless you follow your broker’s procedures for obtaining a legal proxy. If you request a printed copy of the proxy materials by mail, your broker or nominee will provide a voting instruction card for you to use.
How can I contact the transfer agent?
You can contact our transfer agent using the following information:
By regular mail at:
Broadridge Corporate Issuer Solutions, Inc.
P.O. Box 1342
Brentwood, New York 11717
By telephone at:
Toll Free: 1-877-830-4936
By email at:
shareholder@broadridge.com
By fax at:
1-215-553-5402
How do I vote?
You may vote by following the instructions set forth in the Notice or on your proxy card or, if you are a beneficial owner, by following the procedures provided by your broker or other nominee. You may access the notice, proxy materials and our annual report to stockholders at www.proxyvote.com.
Can I change my vote or revoke my proxy?
Yes. You can change your vote or revoke your proxy any time before the Annual Meeting by:
a new vote by Internet or by telephone;
returning a later-dated proxy card;
notifying the corporate secretary of Alpine Immune Sciences, Inc., in writing, at the address listed on the front page; or
attending and voting, virtually via the Internet, during the Annual Meeting.
Attendance at the Annual meeting will not cause your previously granted proxy to be revoked unless you specifically so request.
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What is the effect of giving a proxy?
A proxy is your legal designation of another person to vote the stock you own at the Annual Meeting. The person you designate is your “proxy,” and you give your proxy authority to vote your shares by voting by telephone or over the Internet, or if you requested to receive a printed copy of the proxy materials, by submitting the proxy card.
Proxies are solicited by and on behalf of our board of directors, and our board has designated Mitchell H. Gold and Paul Rickey to serve as proxies for the Annual Meeting. When proxies are properly dated, executed and returned, the shares represented by such proxies will be voted at the Annual Meeting in accordance with the instruction of the stockholder.
If no specific instructions are given, however, the shares will be voted in accordance with the recommendations of our board of directors as described above.
If any matters not described in the proxy statement are properly presented at the Annual Meeting, the proxy holders will use their own judgment to determine how to vote byyour shares.
If the Annual Meeting is adjourned, the proxy overholders can vote your shares on the telephone, vote bynew meeting date as well, unless you have properly revoked your proxy throughinstructions, as described above.
Why did I receive a notice regarding the availability of proxy materials on the Internet instead of a full set of proxy materials?
In accordance with the rules of the U.S. Securities and Exchange Commission, or vote bySEC, we have elected to furnish our proxy using amaterials, including this proxy card. Whetherstatement and our annual report to our stockholders, primarily via the Internet. On or not you planabout April 29, 2022, we expect to attendmail to our stockholders the meeting, we urge youNotice that contains instructions on how to access our proxy materials on the Internet, how to vote by proxy in one submitted by one of these means to ensure your vote is counted. You may still attendat the meeting, and votehow to request printed copies of the proxy materials and annual report.
Stockholders may request to receive all future proxy materials in printed form by mail or electronically by e-mail by following the instructions contained in the Notice. We encourage stockholders to take advantage of the availability of the proxy materials on the Internet to help reduce our costs and the environmental impact of our annual meetings.
What is a quorum — how many shares must be present or represented to conduct business at the Annual Meeting?
A quorum is the minimum number of shares required to be present in person, evenor by remote communication, if you have already votedapplicable, or represented by proxy.

A proxy submitted by a stockholder may indicate that all or a portion of the shares represented by the proxy are not being voted, which is referred to as stockholder withholding, with respect to a particular matter. Similarly, a broker may not be permitted to vote your sharesstock, referred to as you direct.

To vote over the telephone, dial toll-free 1-800-690-6903 using a touch-tone phone and follow the recorded instructions. Your telephone vote must be received by 11:59 p.m., Mountain Timebroker non-vote, held in street name on April 26, 2016 to be counted.

To vote through the Internet, go to www.proxyvote.com to complete an electronic proxy card. Your internet vote must be received by 11:59 p.m., Mountain Time on April 26, 2016 to be counted.

broker non-vote will count for purposes of determining the presence of a quorum. Abstentions are also counted in the determination of a quorum.

If you are a beneficial owner, of shares registered in the name of your broker bank, or other agent, you should have received proxy materials containingnominee holder of record is permitted to vote your shares on the ratification of the appointment of Ernst & Young LLP as our independent registered public accounting firm, even if the record holder does not receive voting instructions from that organization rather than from us. Simply followyou. However, your broker or other nominee holder of record does not have discretionary authority to vote on any of the voting instructions in the proxy materials to ensure that your vote is counted. To vote in personother proposals at the Annual Meeting, you must obtain a valid proxy from your broker, bank or other agent. Follow thewhich are considered non-routine matters, without instructions from youryou, in which case a broker or bank included with these proxy materials, or contact your broker or bank to request a proxy form.

How many votes do I have?

        On each matter to be voted upon, you have one vote for each share of common stock you own as of March 3, 2016.


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What happens if I do not vote?

        If you are a stockholder of record and do not vote by completing your proxy card, by telephone, through the Internet or in person at the Annual Meeting, your shares will not be voted.

        Ifvoted on these proposals. Accordingly, if you are a beneficial owner, and do not instructit is particularly important that you provide your broker, bank, or other agent how to voteinstructions for voting your shares the question of whetheron Proposals No. 1 and 3 to your broker or nominee will still be able toother nominee.

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How many votes are needed for approval of each matter?
Proposal No. 1 — Election of Class I Directors: The election of directors requires a plurality vote your shares depends on whether the NASDAQ Stock Market ("NASDAQ") deems the particular proposal to be a "routine" matter. Brokers and nominees can use their discretion to vote "uninstructed" shares with respect to matters that are considered to be "routine," but not with respect to "non-routine" matters. Under the rules and interpretations of the NASDAQ, "non-routine" mattersshares of common stock voted at the Annual Meeting. “Plurality” means that the nominees who receive the largest number of votes cast “FOR” are matters that may substantially affect the rightselected as directors. As a result, any shares not voted “FOR” a particular nominee (whether as a result of a stockholder abstention or privileges of stockholders,withholding or a broker non-vote) will not be counted in such as mergers, stockholder proposals, elections of directors (even if not contested), executive compensation (including any advisory stockholder votes on executive compensationnominee’s favor and will have no effect on the frequencyoutcome of stockholder votes on executive compensation), and certain corporate governance proposals, even if management-supported. Accordingly, your broker or nominee may not vote your shares on the election.
Proposal 1 without your instructions, but may vote your shares on ProposalNo. 2 even in— Ratification of the absenceAppointment of your instruction.

Ernst & Young LLPWhat if I return a proxy card or otherwise vote but do not make specific choices?

        If you return a signed and dated proxy card or otherwise vote without marking voting selections, your shares will be voted, as applicable, "For" the election of both nominees for director and "For" the: The ratification of the selection by the Audit Committeeappointment of Ernst & Young LLP as our independent registered public accounting firm for ourthe current fiscal year ending December 31, 2016. If any other matter is properly presented at2022 must receive the meeting, your proxyholder (oneaffirmative “FOR” vote of a majority of the individualstotal votes cast affirmatively or negatively (excluding abstentions and broker non-votes) on the proposal to be approved.

Proposal No. 3 – Advisory Vote on Compensation of Named Executive Officers (“Say-on-Pay”): The approval, on an advisory basis, of our named on your proxy card) willexecutive officer compensation requires the affirmative "FOR" vote your shares using hisof a majority of the total votes cast affirmatively or her best judgment.

Whonegatively (excluding abstentions and broker non-votes). Because this vote is paying for this proxy solicitation?

        We will pay for the entire cost of soliciting proxies. In addition to these proxy materials, our directors and employees may also solicit proxies in person, by telephone or by other means of communication. Directors and employeesadvisory only, it will not be paid any additionalbinding on us or on our board of directors. Our board of directors and our compensation for soliciting proxies. We may also reimburse brokerage firms, banks and other agents forcommittee will consider the cost of forwarding proxy materials to beneficial owners.

What does it mean if I receive more than one notice and set of proxy materials?

        If you receive more than one notice and set of proxy materials, your shares may be registered in more than one name or in different accounts. Please follow the voting instructions in the proxy materials to ensure that all of your shares are voted.

Can I change my vote after submitting my proxy?

        Yes. You can revoke your proxy at any time before the final vote at the meeting. If you are the record holder of your shares, you may revoke your proxy in any one of the following ways:


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        Your most current proxy card or telephone or Internet proxy is the one that is counted.

        If your shares are held by your broker or bank as a nominee or agent, you should follow the instructions provided by your broker or bank.

When are stockholder proposals and director nominations due for next year's Annual Meeting?

        To be considered for inclusion in next year's proxy materials, your proposal must be submitted in writing by November 21, 2016, to our Corporate Secretary at 3122 Sterling Circle, Suite 200, Boulder, CO 80301. If you wish to submit a proposal (including a director nomination) at the meeting that is not to be included in next year's proxy materials, you must do so no later than the close of business on January 27, 2017, nor earlier than on December 28, 2016.

How many votes are needed to approve each proposal?

        The following table summarizes the minimum vote needed to approve each proposal and the effect of abstentions and broker non-votes:

Proposal
Number
Proposal DescriptionVote Required for ApprovalEffect of
Abstentions
Effect of
Broker
Non-Votes
1Election of Class I DirectorsNominees receiving the most "For" votesWithheld votes will have no effectNone

2


Ratification of the selection of Ernst & Young LLP as our independent registered public accounting firm for fiscal year ending December 31, 2016


"For" votes from the holders of a majority of shares present in person or represented by proxy and entitled to vote at the Annual Meeting


Against


Counted

What is the effect of abstentions and broker non-votes?

        Shares of common stock held by persons attending the Annual Meeting, but not voting, and shares represented by proxies that reflect abstentions as to a particular proposal will be counted as present for purposes of determining the presence of a quorum. Abstentions are treated as shares present in person or by proxy and entitled to vote, so abstaining has the same effect as a negative vote for purposesoutcome of the vote when determining the compensation of our named executive officers.

Abstentions are not considered votes cast and thus, will not have an effect on the ratification of selection of independent registered public accounting firm. However, because the election of directors is determined by a plurality of votes cast, abstentions will not be counted in determining the outcome of such proposal.

        Shares represented by proxies that reflect a "broker non-vote" will be counted for purposes of determining the presence of a quorum. A "broker non-vote" occurs when a nominee holding shares for a beneficial owner has not received instructions from the beneficial owner and does not have discretionary authority to vote the shares for certain non-routine matters. foregoing Proposals.

With regard to the election of directors,Proposals 1 and 3, broker non-votes, if any, will not be counted as votes cast and will have no effect on the result of the vote. However, ratificationRatification of the selection of our independent registered public


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accounting firm is considered a routine matter on which a broker or other nominee has discretionary authority to vote. As a result, broker non-votes for Proposal 2 are not expected; however, if any broker non-votes occur, they will not be counted for purposes of this proposal.

What isas votes cast and will have no effect on the quorum requirement?

        A quorum of stockholders is necessary to hold a valid meeting. A quorum will be present if stockholders holding at least a majorityresult of the outstanding shares entitled to votevote.

How are present atproxies solicited for the meeting in person or represented by proxy. OnAnnual Meeting, and who will bear the record date, there were 15,462,030 shares outstanding and entitled to vote. Thus, the holders of 7,731,016 shares must be present in person or represented by proxy at the meeting to have a quorum.

        Your shares will be counted towards the quorum only if you submit a valid proxy (or one is submitted on your behalf by your broker, bank or other nominee) or if you vote in person at the meeting. Abstentions and broker non-votes will be counted towards the quorum requirement. If there is no quorum, the chairmancost of the meeting or the holderssolicitation of a majorityproxies?

The board of shares present at the meeting in person or represented by proxy may adjourn the meeting to another date.

How can I find out the results of the voting at the Annual Meeting?

        Preliminary voting results will be announceddirectors is soliciting proxies for use at the Annual Meeting. All expenses associated with this solicitation, including the cost of preparing, assembling, printing, filing, mailing and otherwise distributing the Notice or proxy materials and soliciting votes for use at the Annual Meeting will be borne by us. If you choose to access the proxy materials or vote over the Internet, you are responsible for Internet access charges you may incur. If you choose to vote by telephone, you are responsible for any telephone charges you may incur. In addition finalto the mailing of the Notice or proxy materials, the solicitation of proxies or votes may be made in person, by telephone, or by electronic communication by our directors, officers and employees, who will not receive any additional compensation for such solicitation activities.

Is my vote confidential?
Proxy instructions, ballots, and voting tabulations that identify individual stockholders are handled in a manner that protects your voting privacy. Your vote will not be disclosed either within Alpine Immune Sciences, Inc. or to third parties, except as necessary to meet applicable legal requirements, to allow for the tabulation of votes and certification of the vote, or to facilitate a successful proxy solicitation.
Where can I find the voting results of the Annual Meeting?
We will be published inannounce preliminary voting results at the Annual Meeting. We will also disclose voting results on a current reportCurrent Report on Form 8-K that we expect towill file with the SEC within four business days after the Annual Meeting.meeting. If final voting results are not available to us in time to file a Form 8-K, within four business days after the meeting, we intend towill file a Form 8-K to publish preliminary results and within four business days afterwill provide the final results in an amendment to the Form 8-K as soon as they become available.
Why is this Annual Meeting being held virtually?
We are knowncontinuously exploring technologies and services that will best permit our stockholders to engage with us fileand exercise their vote, and we have decided to conduct the Annual Meeting via virtual live webcast because we believe it better achieves these aims than holding a live in-person meeting. We believe that a virtual annual meeting of stockholders provides all of the rights and opportunities for stockholders to participate as they would at an in-person meeting, but offers a greater level of flexibility and access for many of our stockholders who may not be able to attend an annual meeting of stockholders in person, particularly in light of the ongoing COVID-19 pandemic and potential restrictions and guidance on public gatherings. In addition, compared with the cost and inefficiency associated with holding an in-person meeting, a virtual meeting via live webcast offers an attractive alternative. We believe our stockholders’ opportunity to participate in the annual meeting virtually
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should assuage any concerns about disenfranchisement of our stockholder base as a result of our decision not to hold in-person meetings. You will be able to attend the Annual Meeting online, vote and submit questions, and obtain the information noted above by visiting www.virtualshareholdermeeting.com/ALPN2022.
How can I submit a question during the Annual Meeting?
If you want to submit a question during the Annual Meeting, log into www.virtualshareholdermeeting.com/ALPN2022, type your question into the “Ask a Question” field, and click “Submit.” Stockholders are permitted to submit questions during the Annual Meeting via the virtual meeting website, with a limit of one question per stockholder. We will answer as many questions submitted in accordance with the meeting rules of conduct as possible in the time allotted for the meeting. Only questions that are relevant to an agenda item to be voted on by stockholders will be answered. Our virtual meeting website will also contain instructions for accessing technical support to assist in the event a stockholder encounters any difficulties accessing the virtual meeting. The questions received during the meeting and our answers will be available as soon as practicable after the Annual Meeting on https://ir.alpineimmunesciences.com. The questions and answers will remain available on https://ir.alpineimmunesciences.com for one week after posting.
I share an address with another stockholder, and we received only one paper copy of the proxy materials. How may I obtain an additional Form 8-Kcopy of the proxy materials?
We have adopted a procedure approved by the SEC called “householding” to publishlimit duplicate copies of our proxy materials being printed and delivered to stockholders sharing the final results.

same household. Under this householding procedure, we send only a single copy of the Notice and, if applicable, the proxy materials to multiple stockholders of record who share the same address unless one of those stockholders notifies us that the stockholder would like a separate copy of the Notice or proxy materials. This householding procedure reduces our printing costs, mailing costs, and fees. Stockholders who participate in householding will continue to be able to access and receive separate proxy cards. Upon written or oral request, we will deliver promptly a separate copy of the Notice and, if applicable, the proxy materials to any stockholder at a shared address to which we delivered a single copy of any of these documents. To receive a separate copy, or, if you are receiving multiple copies, to request that Alpine Immune Sciences, Inc. only send a single copy, of the Notice and, if applicable, the proxy materials, stockholders may contact us by telephone at (206) 788-4545 or at the following address:

Alpine Immune Sciences, Inc.
Attention: Legal
188 East Blaine Street, Suite 200
Seattle, Washington 98102
Stockholders who hold shares in street name may contact their brokerage firm, bank, broker-dealer or other similar organization to request information about householding.
What areis the implicationsdeadline to propose actions for consideration at next year’s annual meeting of being an Emerging Growth Company?

        We are an "emerging growth company" under applicable federal securities laws and therefore permittedstockholders or to take advantage of certain reduced public company reporting requirements. As an emerging growth company, we providenominate individuals to serve as directors?

Stockholder Proposals
Stockholders may present proper proposals for inclusion in thisour proxy statement and for consideration at the scaled disclosure permitted undernext annual meeting of stockholders by submitting their proposals in writing to our corporate secretary in a timely manner. For a stockholder proposal to be considered for inclusion in our proxy statement for our 2023 annual meeting of stockholders, our corporate secretary must receive the Jumpstart Our Business Startups Actwritten proposal at our principal executive offices not later than December 30, 2022. In addition, stockholder proposals must comply with the requirements of 2012, or the JOBS Act, including the compensation disclosures requiredRule 14a-8 of a "smaller reporting company," as that term is defined in Rule 12b-2 promulgated under the Securities Exchange Act of 1934. In addition,1934, or the Exchange Act, regarding the inclusion of stockholder proposals in company-sponsored proxy materials. Proposals should be addressed to:
Alpine Immune Sciences, Inc.
Attention: Corporate Secretary
188 East Blaine Street, Suite 200
Seattle, Washington 98102
Our bylaws provide that the only business that may be conducted at an annual meeting is business that is (1) specified in a notice of meeting given by or at the direction of the board of directors, (2) if not specified in the notice of meeting, otherwise properly brought before the meeting by or at the direction of our board of directors or the chairperson of the board of directors, or (3) otherwise properly brought before the meeting by a stockholder present in person (a) who is a beneficial owner of our
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shares both at the time of delivering timely written notice, as an emerging growth company,provided in our bylaws, and at the time of the annual meeting, who is entitled to vote at the annual meeting, who has delivered timely written notice to our corporate secretary, which notice must contain the information specified in our bylaws, and has otherwise complied with the advance notice procedures in our bylaws in all applicable respects or (b) who properly made such proposal in accordance with Rule 14a-8 under the Exchange Act, and the rules and regulations promulgated thereunder. To be timely for our 2023 annual meeting of stockholders under our bylaws, our corporate secretary must receive the written notice at our principal executive offices:
not earlier than February 16, 2023; and
not later than the close of business on March 18, 2023.
If we hold our 2023 annual meeting of stockholders more than 30 days before or more than 60 days after the one-year anniversary date of the 2022 Annual Meeting, then notice of a stockholder proposal that is not intended to be included in our proxy statement must be received no later than the close of business on the later of the following two dates:
the 90th day prior to such annual meeting; and
the 10th day following the day on which public disclosure of the date of such meeting is first made.
If, after complying with the provisions above, a stockholder, or such stockholder’s qualified representative, as applicable, does not appear at the annual meeting to present the stockholder’s proposal, we are not required to conduct votes seeking approval,present the proposal for a vote at such meeting.
Recommendation and Nomination of Director Candidates
You may propose director candidates for consideration by our nominating and corporate governance committee. Any such recommendations should include the nominee’s name and qualifications for membership on our board of directors and should be directed to the corporate secretary of Alpine Immune Sciences, Inc. at the address set forth above. For more information, see “Board of Directors and Corporate Governance — Board Committees— Nominating and Corporate Governance Committee.
In addition, our bylaws permit stockholders to nominate directors for election at an advisory basis,annual meeting of stockholders. To nominate a director, the stockholder must be present in person at the annual meeting, a beneficial owner of shares both at the time of delivering timely written notice, as provided in our bylaws, and at the time of the compensationannual meeting, entitled to vote at the annual meeting and have otherwise complied with the advance notice procedures in our bylaws in all applicable respects. Specifically, the stockholder must give timely notice to our corporate secretary in accordance with our bylaws, which, in general, require that the notice be received by our corporate secretary within the time period described above under “What is the deadline to propose actions for consideration at next year’s annual meeting of stockholders or to nominate individuals to serve as directors? — Stockholder Proposals” for stockholder proposals that are not intended to be included in our proxy statement, and provide the information required by our bylaws.
Availability of Bylaws
A copy of our namedbylaws may be obtained by accessing our filings on the SEC’s website at www.sec.gov. You may also contact our corporate secretary at our principal executive officers or the frequency with which such votes must be conducted. We will remain an "emerging growth company" until the earliest of (i) the last dayoffices for a copy of the fiscal year in which we have totalrelevant bylaw provisions regarding the requirements for making stockholder proposals and nominating director candidates.
Attending the Annual Meeting
Our annual gross revenues of $1 billion or more; (ii) December 31, 2020; (iii)meeting will be held on Thursday, June 16, 2022 at 1:30 p.m. Pacific Time. This year’s annual meeting will be a virtual meeting via live webcast on the date on which we have issued more than $1 billion in nonconvertible debtInternet. You will be able to attend the 2022 Annual Meeting, vote and submit your questions during the previous three years;meeting by visiting www.virtualshareholdermeeting.com/ALPN2022. In order to vote or (iv)submit a question during the date2022 Annual Meeting, you will need to follow the instructions posted at www.proxyvote.com and www.virtualshareholdermeeting.com/ALPN2022 and will need the control number included on which we are deemedyour Notice or proxy card. If you do not have a control number, you will be able to listen to the meeting only. You will not be a large accelerated filer underable to vote or submit your questions during the rules of the Securities and Exchange Commission.

meeting.

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PROPOSAL NO. 1

ELECTION OF DIRECTORS

        Nivalis' authorized Board

Our business and affairs are managed under the direction of our board of directors, which is currently consistscomposed of seven directors. Jonathan Leff, a Class I director, will not run for reelection at this Annual Meeting, and his term as a director will therefore expire ateight members. Seven of our directors are “independent” under the Annual Meeting. At that time, the authorized sizeNasdaq listing standards. Our board of the Board will be reduced to six directors. Our Boarddirectors is divided into three staggered classes of directors. At each annual meeting of stockholders, a class of directors of roughlywill be elected for a three-year term to succeed the same number, designated Class I, Class II and Class III, with each class having a three-year term. Vacancies on the board of directors may be filled by the affirmative vote of a majority of the remaining directors. A director elected by the board of directors to fill a vacancy in a class, including vacancies created by an increase in the number of directors, shall serve for the remainder of the full term of that class and until the director's successor is duly elected and qualified.

        There are two directors in Class I whose term of office expires in 2016 and who have agreed to stand for re-election. is then expiring.

Each of the nominees for election to Class I, Paul Sekhri and John Moore, is currently a member of our Board. If re-elected at the Annual Meeting, each of these nominees would serve until our 2019 Annual Meeting of stockholders anddirector’s term continues until his or her successor is duly elected and qualified or if sooner, until the director'shis or her death, resignation or removal. It is our policy to encourage all directors and nominees for directors to attend the Annual Meeting. We did not hold an annual meetingAny increase or decrease in the prior fiscal year.

        Directors are elected by a pluralitynumber of directors will be distributed among the three classes so that, as nearly as possible, each class will consist of one-third of the votesdirectors. This classification of our board of directors may have the holderseffect of shares presentdelaying or preventing changes in person or represented by proxy and entitled to vote on the electioncontrol of directors. Accordingly, the two nominees receiving the highest number of affirmative votes will be elected. If properly submitted, shares represented by proxy will be voted for the election of the two nominees recommended by the Board unless the proxy is marked in such a manner as to withhold authority so to vote. If any nominee for any reason is unable to serve or for good cause will not serve, the proxies may be voted for such substitute nominee as the proxy holders may determine. Each person nominated for election has agreed to serve if elected, and we have no reason to believe that any nominee will be unable to serve.

Nominees—Class I Directors

        Setour company.

The following table sets forth below are the names and certain other information for each of the nominees and certain information about them, including their ages as of March 15, 2016, and a discussion of the specific and particular experience, qualifications, attributes or skills of each nominee that led the Nominating and Corporate Governance Committee of the Board of Directors (the "Nominating and Corporate Governance Committee") to recommend and the Board to conclude that the nominee should servefor election as a director and for each of Nivalis:

the continuing members of the board of directors as of April 20, 2022. 

ClassAgePositionDirector
Since(7)
Current
Term
Expires
Expiration
of Term
for Which
Nominated
Nominees
Peter Thompson, M.D.(1)(2)I62 Director201720222025
Natasha Hernday(3)I50 Director202020222025
Continuing Directors
Mitchell H. Gold, M.D.
II55 Executive Chairman and
Chief Executive Officer
20172023
Jay Venkatesan, M.D.II50 Director20172023
Xiangmin Cui, Ph.D.(2)(4)II53 Director20192023
Robert Conway(4)(5)III68 Director20152024
James N. Topper, M.D., Ph.D.(6)III60 Director20172024
Christopher Peetz(3)III43 Director20182024
(1)Chairman of the nominating and corporate governance committee.
(2)Member of the compensation committee.
(3)Member of the audit committee.
(4)Member of the nominating and corporate governance committee.
(5)Chairman of the audit committee.
(6)Chairman of the compensation committee.
(7)Represents first year of service on the board of directors of Nivalis Therapeutics, Inc. (which we refer to as Nivalis), renamed as Alpine Immune Sciences, Inc. (which we refer to as Alpine) in July 2017.
Nominees for Director
Name
AgePosition

John Moore

51Director

Paul Sekhri

57Director

John MooreNatasha Hernday joined our Board in February 2012. Mr. Moore has served as a member of our board of directors since December 2020. Ms. Hernday has served as Executive Vice President, General CounselCorporate Development and Secretary of Array BioPharma since 2002. Mr. Moore received a J.D. from the University of North Carolina at Chapel Hill School of Law, a M.S. in Biochemistry from the University of Illinois at Urbana-Champaign and a B.S. in Chemistry from the University of North Carolina at Chapel Hill. Our Board of Directors believes that Mr. Moore's expertise in intellectual property and extensive experience addressing both legal and business issues in the pharmaceutical and biotechnology industries give him the qualifications and skills to serve as a director.

Paul Sekhri joined our Board in February 2016. Mr. Sekhri ismember of the President and CEO of Lycera Corp.Executive Committee for the publicly traded biotechnology company Seagen, Inc. (Nasdaq: SGEN), a position he has held since February 2015. Prior to this position, heOctober 2020, where she previously served as Senior Vice President Integrated Care for Sanofiof Corporate Development from April 2014 through January 2015,September 2017 to October 2020 and as GroupVice President, Corporate Development from January 2011 to September 2017. Since joining Seagen in 2011, Ms. Hernday has built and led the business development team responsible for licensing deals, acquisitions and strategic alliances. From 1994 through 2010, after starting her career in molecular and mammalian cell biology, Ms. Hernday served in various roles of increasing responsibility at Amgen Inc., including as Director, Mergers & Acquisitions and as Director, Out-Partnering. She also serves on the board of directors of Xoma Corp. (Nasdaq: XOMA) and PDL BioPharma, Inc. (Nasdaq: PDLI), and on the Knight Campus External Advisory Board for the University of Oregon. Ms. Hernday received her BA in microbiology from the University of California at Santa Barbara and MBA from Pepperdine University.


We believe that Ms. Hernday’s experience and expertise in the pharmaceuticals industry provides her with the qualifications necessary to serve as a member of our board of directors.

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Peter Thompson, M.D. has served as a member of our board of directors since the completion of the merger of Nivalis and Alpine in July 2017 and previously served as a member of the board of directors of Alpine since June 2016. Dr. Thompson currently serves as a private equity partner for OrbiMed Advisors LLC, an investment firm focused on the healthcare sector, where he has also served as venture partner since joining in September 2010. Dr. Thompson is a co-founder of and has served as a member of the board of directors of Corvus Pharmaceuticals, Inc. (Nasdaq: CRVS) since December 2014. Dr. Thompson has served as a director of Decibel Therapeutics, Inc. (Nasdaq: DBTX) since November 2020, as director of PMV Pharmaceuticals, Inc. (Nasdaq; PMVP) since November 2014, and as a director of Silverback Therapeutics, Inc. (Nasdaq: SBTX) since April 2016. Dr. Thompson also served as a director of Adaptimmune Therapeutics plc (Nasdaq: ADAP), a biopharmaceutical company, from 2014 until June 2018, as a member of the board of directors of Prevail Therapeutics Inc. (Nasdaq: PRVL) from October 2017 until January 2021, and as a member of the board of directors of Synthorx, Inc. (Nasdaq: THOR) from April 2018 to January 2020. He also currently serves on the boards of directors of several private companies. Dr. Thompson is a board-certified internist and oncologist and has served as Affiliate Professor of Neurosurgery at the University of Washington since 2010. Dr. Thompson co-founded and served as the chief executive officer of Trubion Pharmaceuticals, Inc., a biopharmaceutical company, from 2002 to 2009. Dr. Thompson previously held executive positions at Chiron Corporation and Becton Dickinson and served on the faculty of the National Cancer Institute following his medical staff fellowship there. Dr. Thompson holds a Sc. B. in Molecular Biology and Mathematics from Brown University and an M.D. from Brown University Medical School.
We believe that Dr. Thompson’s venture capital and management experience in the pharmaceuticals industry provides him with the qualifications and skills necessary to serve as a member of our board of directors.
THE BOARD OF DIRECTORS RECOMMENDS A VOTE “FOR” EACH OF THE NOMINEES NAMED ABOVE
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BOARD OF DIRECTORS AND CORPORATE GOVERNANCE
Continuing Directors
Class II Directors Continuing in Office until the 2023 Annual Meeting of Stockholders
Mitchell H. Gold, M.D. has served as our executive chairman, chief executive officer and a member of our board of directors since the completion of the merger of Nivalis and Alpine in July 2017 and prior to the merger served as Alpine’s chief executive officer since June 2016 and as Alpine’s executive chairman and member of Alpine’s board of directors since January 2015. Prior to co-founding Alpine, Dr. Gold was Chairman and Founder of Alpine Biosciences, a privately-held biotech company, from 2012 to 2014. From 2001 to 2012, Dr. Gold served in a variety of roles with Dendreon Corporation (which was acquired by Valeant Pharmaceuticals International, Inc. through an asset purchase agreement), including President, Chief Executive Officer, and Chairman of the board of directors. Earlier in his career, Dr. Gold served as Vice President Globalof Business Development and Chief Strategy Officer for Teva Pharmaceutical Industries, Lt.at Data Critical from March 20132000 to March 2014. Prior2001. From 1995 to joining Teva he spent five years from January 2009 to February 2013 as Operating Partner and Head of the Biotechnology Operating Group at TPG Biotech, the life sciences venture capital arm of TPG Capital. From 2004-2009 Mr. Sekhri2000, Dr. Gold was Founder, President and Chief Executive Officer of Cerimon Pharmaceuticals, Inc. Prior to founding Cerimon, Mr. Sekhri was PresidentElixis Corporation. Dr. Gold is currently a Managing Partner at Alpine BioVentures. Dr. Gold holds an M.D. from Rush Medical College of Rush University Medical Center and Chief Business Officer of ARIAD Pharmaceuticals, Inc. Previously, Mr. Sekhri spent four years at Novartis, as Senior Vice President, and Head of Global Search and Evaluation, Business Development and Licensing for Novartis Pharma AG.

        Mr. Sekhri completed graduate worka B.S. in Neuroscience atBiology from the University of Maryland School of Medicine, where he also received his BS in Zoology. Mr. Sekhri is currentlyWisconsin.

We believe that Dr. Gold possesses specific attributes that qualify him to serve as a member of our board of directors, including more than 20 years of experience in senior executive management roles with both early stage and public biopharmaceutical companies.
Jay Venkatesan, M.D. has served as a member of our board of directors since the Board of Directors of three publicly-traded companies, Veeva Systems, Pharming N.V., and Enumeral Biomedical, and was a recent board observer at IMS Health. Additionally, he is on the Board of Directorscompletion of the non-profit Cancer Research Institute, the BioExec Institute, Inc., the Industry Advisory Boardmerger of the Michael J. Fox Foundation, the TB Alliance, the Tectonic Theatre Project,Nivalis and was recently electedAlpine in July 2017, served as our president from July 2017 to the Board of Directors of Young Concert Artists, Inc. Mr. SekhriAugust 2018 and previously served as Alpine’s chief executive officer from November 2015 to June 2016 and Alpine’s president from June 2016 to July 2017. Dr. Venkatesan also served as a Member of the Board of Trustees of Carnegie Hall from 2010-2012, where he is now an active member of their Patrons Council. Our BoardAlpine’s board of Directors believes that Mr. Sekhri's extensive experience in operational and strategic drug development and his outstanding reputation and expertise in the biomedical community give him the qualifications and skills to serve as a director.

Directors Continuing in Office Until the 2017 Annual Meeting—Class II

        The following table sets forth the name, age and position of each of our directors in Class II as of March 15, 2016:

Name
AgePosition

Howard Furst, M.D. 

48Chairman

Evan Loh, M.D. 

57Director

Howard Furst, M.D., joined our Board in April 2010 and was elected Chairman of the Board in June 2014.since November 2015. Since May 2018, Dr. FurstVenkatesan has been a Partner at Deerfield Management Company since 2007. Dr. Furst served as the Chief Executive Officer of NitroMed from 2009 to 2011. From 2006 to 2007, he was a Portfolio Manager for the healthcare group at Magnetar Capital. From 2000 to 2006, he was a principal at Maverick Capital. From December 2009 to July 2013, Dr. Furst served on the board of Talon Therapeutics. He received his M.D. from the New York University School of Medicine, an M.B.A. with a dual concentration in Finance and Healthcare Administration from the Wharton School of Business at the University of Pennsylvania and a B.A. from the University of Pennsylvania. Our Board of Directors believes that Dr. Furst's healthcare investing and medical expertise, as well as his experience in finance and strategic planning, give him the qualifications and skills to serve as a director.

Evan Loh, M.D., joined our Board in February 2012. Dr. Loh has been the Presidentchief executive officer and a member of the board of directors of Paratek Pharmaceuticals since JuneAngion Biomedica, Inc., a private pharmaceutical company. Prior to joining Alpine, Dr. Venkatesan was the executive vice president and general manager of Oncothyreon, Inc. (now Cascadian Therapeutics, which was acquired by Seattle Genetics, Inc. in March 2018) from August 2014 to May 2015 following Oncothyreon’s acquisition of Alpine Biosciences, where he served as co-founder and chief executive officer. Previously, Dr. Venkatesan was the founder, portfolio manager, and managing director of Ayer Capital Management, a global healthcare equity fund from 2008 to 2013. Prior to that, he was a director at Brookside Capital Partners from 2002 to 2007. Earlier in his career, Dr. Venkatesan was involved in healthcare investing at Partricof & Co. Ventures from 1995 to 1996 and consulting at McKinsey & Company from 1993 to 1995. Dr. Venkatesan is currently a managing partner at Alpine BioVentures. In addition, Dr. Venkatesan currently serves on the board of directors of CellBioTherapy and served on the board of directors of Exicure Therapeutics (Nasdaq: XCUR) until December 2020. Dr. Venkatesan received an M.D. from the University of Pennsylvania School of Medicine, an M.B.A. from the Wharton School of the University of Pennsylvania, and a B.A. in Chemistry from Williams College.

We believe that Dr. Venkatesan possesses specific attributes that qualify him to serve as a member of our board of directors, including his experience on the boards of and in management positions with biopharmaceutical companies, including publicly-traded companies.
Xiangmin Cui, Ph.D. has served as its Chief Medical Officera member of our board of directors since January 2019. Dr. Cui has served as managing director of Decheng Capital, an investment firm focused on life sciences companies, since he founded the firm in 2011. Prior to founding Decheng, Dr. Cui was an investment partner at Bay City Capital, an international life science venture capital firm in San Francisco. Dr. Cui was previously director of strategic investment for the Southern Research Institute, a not-for-profit research organization. Prior to that, Dr. Cui co-founded Pan Pacific Pharmaceuticals and Hucon Biopharmaceuticals, where he led efforts in discovery and development of several key technologies in the fields of oncology, cardiology, and infectious and inflammatory diseases. Dr. Cui has served as a member of the board of directors of ARMO BioSciences, Inc., a publicly-traded immuno-oncology company acquired by Eli Lilly and Company in May 2018, from August 2017 to May 2018, has served on the board of directors of Cue Health (Nasdaq: HLTH) since December 2012. From December 2013 to June 2014,2020 and also currently serves on the boards of directors of several private companies. Dr. Loh also served as the Executive Chairman of Paratek Pharmaceuticals. From October 2009 to January 2012, Dr. Loh served as Senior Vice President, DevelopmentCui holds a Ph.D. in Cancer Biology from Stanford University and Strategic Operations, Worldwide Researcha BS and Development at Pfizer. Prior to joining Pfizer, Dr. Loh was Vice President, Clinical Research & Development at Wyeth, a pharmaceutical company, where he was responsible for leadership and strategic oversight of clinical development efforts across multiple therapeutic areas throughout the world. Dr. Loh received his A.B.MS in Molecular Biology from Harvard College and his M.D. from Harvard Medical School. He completed his Internal Medicine and Cardiovascular fellowship training at Brigham and Women's Hospital. Our Board of Directors believesPeking University.
We believe that Dr. Loh's extensiveCui’s venture capital and management experience in operationalthe pharmaceuticals industry provides him with the qualifications and

skills necessary to serve as a member of our board of directors. Dr. Cui was appointed to the Board pursuant to the terms of the securities purchase agreement relating to our January 2019 private placement.

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strategic drug development and his outstanding reputation and expertise in the medical community give him the qualifications and skills to serve as a director.

Class III Directors Continuing in Office Untiluntil the 20182024 Annual Meeting—Class III

        The following table sets forth the name, age and positionMeeting of eachStockholders

Robert Conway has served as a member of our board of directors since the completion of the merger of Nivalis and Alpine in Class IIJuly 2017 and previously served as a member of March 15, 2016:

Name
AgePosition

Robert Conway

62Director

Jon Congleton

52President and Chief Executive Officer

Robert Conway joined our Board inthe board of directors of Nivalis since April 2015. From 1999 to 2012, Mr. Conway served as the Chief Executive Officerchief executive officer and member of the board of directors of Array BioPharma (Nasdaq: ARRY), a publicly traded biopharmaceutical company. Prior to joining Array, Mr. Conway was the Chief Operating Officerchief operating officer and Executive Vice Presidentexecutive vice president of Hill Top Research, from 1996 to 1999. From 1979 until 1996, Mr. Conway held various executive positions for Corning Inc. (NYSE: GLW), including Corporate Vice Presidentcorporate vice president and General Managergeneral manager of Corning Hazleton, a contract research organization. Since 2013, Mr. Conway has served on the Boardboard of Directorsdirectors of ARCA BioPharma (Nasdaq: ABIO), a publicly traded biopharmaceutical company, and was elected Chairman in June 2014. From 2004 to 2013, heMr. Conway served on the Boardsboard of Directorsdirectors of PRA International (Nasdaq: PRAH), which was a public company for a portion of his tenure there, and eResearch Technology, a private company.there. Mr. Conway serves asis also a member of the Chairmanboard of Wall Family Enterprise, a leading librarydirectors of Signant Health and educational supplies company.Advarra, Inc., private clinical technology companies. In addition, Mr. Conway is a member of the Strategic Advisory Committeestrategic advisory committee of Genstar Capital. Mr. Conway received a B.S. in accounting from Marquette University in 1976. Our Board of Directors believes

We believe that Mr. Conway'sConway’s experience and expertise in the pharmaceutical industry, in pharmaceutical development and clinical trials, and in corporate finance, governance, accounting and public company compliance give him the qualifications and skills to serve as a director.

on our board of directors.

Jon CongletonJames N. Topper, M.D., Ph.D. has served as our President and Chief Executive Officer and as a member of our Boardboard of directors since January 1, 2015.the completion of the merger of Nivalis and Alpine in July 2017 and prior to the merger served as a member of the board of directors of Alpine since June 2016. Dr. Topper has been a partner with Frazier Life Sciences since August 2003, serving as general partner since 2005. Before joining Nivalis, Mr. Congleton was at Teva Pharmaceuticals from November 1996 to December 2014, where he most recentlyFrazier Life Sciences, Dr. Topper served as Senior Vice President, Global Central Nervous Disordershead of the cardiovascular research and Paindevelopment division of Millennium Pharmaceuticals, Inc. and ran Millennium San Francisco (formerly COR Therapeutics, Inc.) from April 20132002 to December 2014,2003. Before the merger of COR and Millennium in 2002, Dr. Topper served as Senior Vice President Global Medicine Groupthe vice president of biology at COR from November 20111999 to April 2013. Prior to that, Mr. Congleton held positions2002. Dr. Topper currently serves as a member of the board of directors of AnaptysBio, Inc. (Nasdaq: ANAB) and Frazier Life Sciences Acquisition Corporation (Nasdaq: FLAC), and has served on numerous other boards of directors, including Allena Pharmaceuticals (Nasdaq: ALNA), Phanthom Pharmaceuticals, Inc. (Nasdaq: PHAT), Aptinyx, Inc. (Nasdaq: APTX), Entasis Therapeutics Holdings Inc. (Nasdaq: ETTX), Sierra Oncology, Inc. (formerly ProNai) (Nasdaq: SRRA), Amicus Therapeutics, Inc. (Nasdaq: FOLD), Portola Pharmaceuticals, Inc. (Nasdaq: PTLA), and La Jolla Pharmaceutical Company (Nasdaq: LJPC). Dr. Topper received his M.D. and Ph.D. in general managementbiophysics from Stanford University and global strategic marketing, including General Manager of Teva Neuroscience. Prior to joining Teva, Mr. Congleton spent ten years in a variety of commercial roles with predecessor companies of Sanofi. Mr. Congleton earned ahis B.S. in marketingbiology from Kansas State University. Our Boardthe University of Directors believesMichigan.
We believe that Mr. Congleton's mixDr. Topper’s experience overseeing Frazier Life Sciences’ investments in biotechnology, his experience in senior management positions, and his significant knowledge of business development, operationsindustry, medical and commercialization experience make him well suited to drive Nivalis through its next phase of development give himscientific matters, provide Dr. Topper with the qualifications and skills to serve on our board of directors.
Christopher Peetz has served as a director.

THE BOARD OF DIRECTORS RECOMMENDS
A VOTE "FOR" EACH OF THE NAMED NOMINEES.


INFORMATION REGARDING THE BOARD OF DIRECTORS AND CORPORATE GOVERNANCE

Independencemember of our board of directors since April 2018. Mr. Peetz has been the Boardpresident and chief executive officer of Directors

        As required underMirum Pharmaceuticals, Inc. since March 2019 and president since November 2018. He has served as an entrepreneur-in-residence at Frazier Healthcare Partners since May 2017. He served as the NASDAQ listing standards,chief executive officer of Flashlight Therapeutics, Inc. from May 2017 until December 2019 and served as chief financial officer and head of corporate development at Tobira Therapeutics, Inc., a majoritypublicly-traded biotechnology company acquired by Allergan plc in November 2016, from May 2014 to December 2016. Prior to joining Tobira Therapeutics, Mr. Peetz served as vice president, finance & corporate development of Jennerex Biotherapeutics, a private biopharmaceutical company. Prior to Jennerex, Mr. Peetz held various positions at Onyx Pharmaceuticals, Inc. (now Amgen), including oversight of financial planning and analysis, corporate strategy, product lifecycle management and commercial roles. Prior to Onyx, Mr. Peetz provided merger and acquisition advisory services at LaSalle Corporate Finance, a part of ABN AMRO, and held positions at Abgenix Inc. and Solazyme Inc. Mr. Peetz received an MBA from Stanford Graduate School of Business and a B.S.B.A. in Finance, International Business and French from Washington University in St. Louis.

We believe Mr. Peetz’ experience in senior management positions in both business and finance and his experience supporting various corporate and financing transactions provide him with the membersqualifications and skills to serve on our board of directors.
Director Independence
Our board of directors has undertaken a listed company's Boardreview of Directors must qualify as "independent," as affirmatively determined byits composition, the Board. The Board consultscomposition of its committees and the independence of current directors and considered whether any such director has a material relationship with our counselus that could compromise his or her ability to ensure that the Board's determinations are consistent with relevant securities and other laws and regulations regarding the definition of "independent," including those set forthexercise independent judgment in pertinent listing standards of NASDAQ, as in effect from time to time.

carrying out his or her responsibilities. Based upon

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        Consistent with these considerations, after review of all relevant identified transactions or relationships between

information requested from and provided by each current director or any ofconcerning his or her background, employment and affiliations, including family members, and Nivalis, our senior management and our independent registered public accounting firm,relationships, the Boardboard of directors has affirmatively determined that the following five directors are independent directors within the meaning of the applicable NASDAQ listing standards: Mr. Sekhri, Mr. Moore, Dr. Furst, Mr. Conway and Dr. Loh. In making this determination, the Board found that none of our current directors, except for Dr. Gold, have a relationship which would interfere with the exercise of independent judgment in carrying out the responsibilities of a director and that each of these directors or nomineesis an “independent director” as defined under the rules of the Nasdaq. The board of directors also determined that Messrs. Conway (chairman) and Peetz and Ms. Hernday, who comprise our audit committee, Drs. Topper (chairman), Thompson and Cui, who comprise our compensation committee, Drs. Thompson (chairman) and Cui and Mr. Conway, who comprise our nominating and corporate governance committee, satisfy the independence standards for director hadthose committees established by applicable SEC rules and the rules of Nasdaq.
Board Leadership Structure
Our board of directors believes that having a material or other disqualifying relationshipcombined chairman and chief executive officer, along with Nivalis. Mr. Congleton, our President and Chief Executive Officer, is not ana lead independent director, by virtue of his relationship with us.

Board Leadership Structure

        We have structuredis the appropriate leadership structure for us at this point in our Board in a way that we believe effectively serves our objectives of corporate governance and management oversight. We separate the roles of Chief Executive Officer and Chairman of the Board in recognition of the differences between the two roles.company’s development. We believe that the Chief Executive Officer should be responsible for the day to daythis structure provides appropriate leadership and performance of the company, while the Chairman of the Board should work with the Chief Executive Officer and the rest of the Board to assist in setting the strategic direction for the company and provide guidance to, and oversight of our company and facilitates effective functioning of both management and the Chief Executive Officer. The Chairman also setsboard. Our corporate governance guidelines are posted on our website at https://ir.alpineimmunesciences.com/governance.

Board Diversity Matrix as of April 20, 2022
Board Size:
Total number of directors:8
Gender:MaleFemaleNon-Binary
Number of directors based on gender identity61
Number of directors who identify in any of the categories below:
African American or Black
Alaskan Native of American Indian
Asian
Hispanic or Latino
Native Hawaiian or Pacific Islander
White51
Two or More Races or Ethnicities1
LGBTQ+
Undisclosed1
Board Meetings
During the agenda for Board meetings and presides over them.

Rolefiscal year ended December 31, 2021, our board of directors held five meetings. No director attended fewer than 75% of the Board in Risk Oversight and Risk Management

        Onetotal number of meetings of the Board's key functions is informed oversightboard of directors and the committees of which they were a member.

In order to promote open discussion among independent directors, our risk management process.board of directors has a policy of holding regular executive sessions of non-management directors during each regularly scheduled board meeting and an executive session including only independent directors at least once each year (and at such other times as requested by an independent director). The Board does not have a standing risk management committee, but rather administers this oversight function directly throughchair of the Board as a whole, as well as through various Board standing committees that address risks inherent in their respective areas of oversight. Our Board performs this oversight role by using several different levels of review. In connection with its reviews of our operationsnominating and corporate functions, our Board addresses the primary risks associated with those operations and corporate functions. In addition, our Board reviews the risks associated with our business strategies periodically throughout the year as partgovernance committee presides at executive sessions of its consideration in undertaking any such business strategies.

        In addition, while the Board is responsible for monitoring and assessing strategic risk exposure, the Audit Committee has the responsibilityindependent directors.

Attendance of Directors at Annual Meetings of Stockholders
Pursuant to consider and discuss the major financial risk exposures and the steps management has taken to monitor and control these exposures, including guidelines and policies to govern the process by which risk assessment and management is undertaken. The Audit Committee also monitors compliance with legal and regulatory requirements, in addition to oversight of the performance of our accounting and financial reporting processes. In accordance with the Nominating and Corporate Governance committee's charter, the Nominating and Corporate Governance Committee is responsible for establishing and monitoring the effectiveness of our corporate governance guidelines, including whether they are successful in preventing illegal or improper liability-creating conduct. The Compensation Committee assessesabsent unusual circumstances, each director is expected to attend the annual meeting of stockholders. Two of our directors attended our 2021 annual meeting of stockholders.
Board Committees
Our board of directors has three standing committees — an audit committee, a compensation committee, and monitors whether any compensation policiesa nominating and programs have the potential to encourage excessive risk-taking.

Meetings of the Board of Directors

        The Board met nine times during the 2015 fiscal year. The independent members of the Board met separately as a group in connection with four regularly scheduled board meetings in 2015. During 2015,corporate governance committee, each of which has the composition and responsibilities described below. The nominating and corporate governance committee and the board of directors then in office attendedevaluate committee membership at least 75%annually. Our board of the aggregate of all meetings of the Board and all meetings of the committees of the Board on which such director then served,directors may from time to time establish other than Dr. Loh who attended six of the nine meetings of the Board in 2015.

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INFORMATION REGARDING COMMITTEES OF THE BOARD OF DIRECTORS

        The Board has three standing committees: an

Audit Committee a Compensation Committee, and a Nominating and Corporate Governance Committee.
The following table provides membership and meeting information for fiscal year 2015, for eachresponsibilities of the Board committees:

Name
 Audit Compensation Nominating and
Corporate
Governance

Robert Conway(1)

 X    

Howard Furst, M.D.(2)

     X

Jonathan Leff(3)

   X X

Evan Loh, M.D. 

 X X  

John Moore(4)

 X X X

Paul Sekhri

   X X

Number of Meetings in Fiscal 2015

 2 5 0

audit committee include, but are not limited to, the following:
(1)
Chairman of the Audit Committee.

(2)
Chairman of the Nominating
meeting with our independent auditors, our management team and Corporate Governance Committee.

(3)
Mr. Leff will no longer be a member of any of the committees of the Board following expiration of his term at the Annual Meeting.

(4)
Chairman of the Compensation Committee.

Board Committees

        Below is a description of each committee of the Board. Each of the committees has authority to engage legal counsel orsuch other experts or consultants,personnel as it deems appropriate to carry out its responsibilities. The Board has determined that each member of eachconduct and assist with certain audit committee meets the applicable NASDAQ rules and regulations regarding "independence" and that each member is free of any relationship that would impair his or her individual exercise of independent judgment with regard to Nivalis.

functions;

Audit Committee

        The Audit Committee was established by the Board in accordance with Section 3(a)(58)(A) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), to overseeoverseeing our corporate accounting and financial reporting processes and audits of its financial statements. For this purpose, the Audit Committee performs several functions, which include the following:

appointing, compensating, retaining, evaluating, terminating and overseeingdeciding whether to appoint, retain or terminate our independent registered public accounting firm;

discussing with our independent registered public accounting firm their independence from management;

reviewing with our independent registered public accounting firmauditors, including the scopesole authority to approve all audit engagement fees and results of their audit;

approvingterms and to pre-approve all audit and permissiblepermitted non-audit and tax services to be performedprovided by ourthe independent registered public accounting firm;auditors;


overseeing the financial reporting processreviewing and discussing with management and our independent registered public accounting firmauditors the interim and annual financial statements, that we fileincluding certain disclosures, addressing any issues encountered in the course of the audit work, and evaluating the performance of our independent auditors;
discussing with management our earnings press releases, financial information and any earnings guidance provided to analysts and ratings agencies;
discussing with management and the SEC;

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discussing with management any outsourcing of the internal audit function (if any), including selection of vendor, fees paid and compliance with legal and regulatory requirements;areas to be audited;


establishing procedures for the confidentialreceipt, retention and anonymous submissiontreatment of concernscomplaints received by us regarding questionablecertain accounting internal control or auditingaudit matters;
establishing policies governing the hiring by us of any current or former employee of our independent auditors;
reviewing our compliance with applicable laws and regulations and to review and oversee our policies and procedures designed to promote and monitor regulatory compliance;


obtaining assurance from the independent auditors that the audit of the financial statements was conducted in a manner consistent with Section 10A of the Exchange Act;
reviewing, approving and overseeing transactions between us and any related person and any other potential conflict of interest situation;
administering our Whistleblower and Non-Retaliation Policy and responding to and resolving related complaints or concerns;
overseeing portions of our Code of Business Conduct and Ethics as designated by our board of directors;
providing our board of directors with the results of its monitoring and recommendations derived from its responsibilities;
reviewing and approving related person transactions.

        The Audit Committee is currently composedour investment policy;

providing the independent and internal auditors with access to the board of directors; and
producing the report required to be prepared for inclusion in our annual proxy statement.
Since December 2020, the audit committee has consisted of three directors: Mr.Messrs. Conway (Chair), Dr. Loh(chairman) and Mr. Moore. The Audit Committee met two times during the fiscal year. The Audit CommitteePeetz and Ms. Hernday. Our board of directors has adopted a written charter that is available to stockholders on our website at www.nivalis.com.

        The Board reviews the NASDAQ listing standards definition of independence for Audit Committee members on an annual basis and has determined that all members of the Audit Committee are independent (as independence is currently defined in the NASDAQ listing standards). The Board has also determined that Mr. Conway qualifies asis an "audit“audit committee financial expert,"expert” as defined in applicablethe SEC rules. The Boardrules and made a qualitative assessment of Mr. Conway'sConway’s level of knowledge and experience based on a number ofseveral factors, including his prior experience, business acumen and independence.


Report Our board of directors has concluded that the Audit Committeecomposition of the Board of Directors(1)

        The Audit Committee has reviewed and discussed the audited financial statements for the fiscal year ended December 31, 2015 with management. The Audit Committee has discussed with the independent registered public accounting firm the matters required to be discussed by Statement on Auditing Standards No. 61, as amended (AICPA,Professional Standards, Vol. 1, AU section 380), as adopted by the Public Company Accounting Oversight Board ("PCAOB") in Rule 3200T. The Audit Committee has also received the written disclosures and the letter from the independent registered public accounting firm required by applicable requirements of the PCAOB regarding the independent registered public accounting firm's communications with the audit committee concerningmeets the requirements for independence under the rules and has discussed withregulations of Nasdaq and the independent registered public accounting firm the accounting firm's independence. Based on the foregoing, the Audit Committee recommended to the Board that the audited financial statements be included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2015.

SEC.

Mr. Robert Conway
Dr. Evan Loh
Mr. John Moore

Compensation Committee

The Compensation Committee of the Board is currently composed of four directors: Mr. Moore (chair), Mr. Leff, Dr. Loh and Mr. Sekhri. Mr. Leff will no longer be a member of our Compensation Committee following the expiration of his term as a director at the Annual Meeting. Our Board has affirmatively determined that all members of the Compensation Committee are independent, as independence is currently defined in the NASDAQ listing standards. The Compensation Committeeaudit committee met sixfive times during the fiscal year.2021. The Compensation Committeeaudit committee also meets periodically with our outside auditors without management present, at such times as it deems appropriate. Our board of directors has adopted a written charter thatfor the audit committee in compliance with the applicable rules of the SEC and the Nasdaq listing standards and which is available to stockholders on our website at www.nivalis.com.


(1)
The material in this report is not "soliciting material," is not deemed "filed" with the Commission and is not to be incorporated by reference in any filing of Nivalis under the Securities Act or the Exchange Act, whether made before or after the date hereof and irrespective of any general incorporation language in any such filing.
https://ir.alpineimmunesciences.com/governance.

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        The

Compensation Committee
The compensation committee acts on behalf of the Boardboard of directors to review, adopt and oversee our compensation strategy, policies, plans and programs, and its responsibilities include the following:

Setting the overallsetting our compensation strategy and compensation policies for our executive officers and directors.directors;


Annually reviewing and approving our corporate goals and objectives relevantrelative to the compensation of the Chief Executive Officer and otherour executive officers and evaluating the Chief Executive Officer's and the otherour executive officers'officers’ performance in light of those goals and objectives.objectives;


Annually reviewing and determining, or recommendingmaking recommendations to our board of directors to determine, the Board for determination, for our Chief Executive Officer and the other executive officers (1)base salary, the annual base salary level, (2) the annual incentive opportunity level and any related goals, (3) the long-term incentive opportunity and level and any related goals and (4) any supplemental benefits or perquisites.prerequisites for our executive officers;
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Reviewingreviewing and approving, or recommendingmaking recommendations to our board of directors to approve, the Board for approval, for the Chief Executive Officer and other executive officers, employment agreements,arrangements, severance arrangements, change in control arrangements, and other similar arrangements and amendments to or waivers of any such agreements.for our executive officers;


Reviewingreviewing and making recommendations to the Board concerning the adoption, terms and operationour board of ourdirectors regarding compensation plans for all directors, executive officers and other officers, including incentive-compensation plans and equity-based plans.plans;


Administeringgranting equity awards under our incentive-compensation plan, equity based plan, employee stock purchase plan or other employee benefit plans.equity-based compensation plans, with limited authority to delegate such functions;


reviewing and discussing certain risk incentives related to incentive compensation granted to our executive officers;
Discussingdiscussing and reviewing whether the incentive compensation arrangements for our executive officers promote appropriate approaches to the management and mitigation of risk.risk;


Overseeingoverseeing and assisting in the preparation of the compensation tables and related narrative disclosure required to be included inselect portions of our proxy statementstatements and annual report on Form 10-K in accordance with SEC rulesreports related to compensation;
reviewing director and regulations from time to time, reviewing and approving thecommittee member compensation discussion and analysis contained in our proxy statement each year and preparing a report for inclusion in our proxy statement and annual report on Form 10-K with respect to the compensation discussion and analysis.

Reviewing director compensation for service on the Board and Board committees and recommending any changes to the Board.

Compensation Committee Processes and Procedures

        Typically, the Compensation Committee meets on a regular basis as it deems appropriate. The agenda for each meeting is usually developed by the Chairour board of the Compensation Committee. The Compensation Committee meets regularly in executive session. However, from time to time, various members of management and other employees as well as outside advisors or consultants may be invited by the Compensation Committee to make presentations, to provide financial or other background information or advice or to otherwise participate in Compensation Committee meetings. The Chief Executive Officer may not participate in, or be present during, any deliberations or determinations of the Compensation Committee regarding his compensation or individual performance objectives.

        The Compensation Committee has the sole authority to retain compensation consultants to assist in its evaluation of executive and director compensation, including the authority to approve the consultant's reasonable fees and other retention terms. The Compensation Committee has retained Compensia, an independent compensation consultant, to assist the Compensation Committee in

directors;

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determining a peer group of companies for purposes of benchmarking executive and director compensation and to generally advise the Compensation Committee on our executive and director compensation programs. The Compensation Committee has the sole authority to approve the terms of the engagement of Compensia. Compensia did not provide any services to us or our Compensation Committee other than as described above. Our Compensation Committee has determined that there is no conflict of interest in Compensia's engagement that would prevent Compensia from independently representing the Compensation Committee.

        Although our Board and Compensation Committee consider the advice and recommendations of our independent compensation consultants as to our executive and director compensation programs, our Board and Compensation Committee ultimately make their own decisions about these matters. Our Compensation Committee may engage other independent compensation consultants to provide additional guidance for executive compensation and conduct further competitive benchmarking against a peer group of publicly traded companies.

        The Compensation Committee annually reviews executive compensation in light of general market conditions in the life science industry, our development stage and other factors. As part of this review process, the Compensation Committee reviews annually the compensation programs of companies in our peer group. In 2015, this compensation peer group was comprised of companies that were selected on the basis of their similarity to us, as determined using the following criteria:

        The companies approved by the Compensation Committee as the peer group for 2015 were as follows:

Akebia Therapeutics

Ignyta

Applied Genetic Technologies

La Jolla Pharmaceuticals

Arrowhead Research

Loxo Oncology

Athersys

MEI Pharma

BIND Therapeutics

Ocera Therapeutics

ChemoCentryx

Stemline Therapeutics

Cymabay Therapeutics

TRACON Pharmaceuticals

Cyokinetics

Verastem

Dicerna Pharmaceuticals

Concert Pharmaceuticals

GlycoMimetics

Mirati Therapeutics

Idera Pharmaceuticals

Neuralstem

        The Compensation Committee annually reviews the criteria and the companies in our peer group with the assistance of Compensia to ensure that the group consists of a comparable set of companies that are appropriate for purposes of benchmarking our executive and director compensation.

        In 2015, the Compensation Committee approved increases in our named executive officers' salaries based on its analysis of peer company data, individual performance and other factors. In setting 2015 base salary and cash bonus award amounts for our named executive officers, the Compensation Committee analyzed the peer group data and targeted cash compensation generally in the 50th percentile of cash compensation paid to similarly situated executive officers within the peer group.


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The Compensation Committee recommended and approved a base salary of $450,000 for Mr. Congleton, a base salary of $383,835 for Ms. Troha, and a base salary of $357,000 for Mr. Carruthers for the fiscal year 2016, and that the target annual performance bonus for Mr. Congleton would equal 50% of his annual base salary, the target annual performance bonus for Ms. Troha would equal 35% of her annual base salary and the target annual performance bonus for Mr. Carruthers would equal 35% of his annual base salary.

        Historically, the Compensation Committee has reviewed and made adjustments to annual compensation, determined bonus and equity awards and established new performance objectives at one or more meetings held during the fourth quarter of the year or the first quarter of the following year. However, the Compensation Committee also considers matters related to individual compensation, such as compensation for new executive hires, as well as high-level strategic issues, such as the efficacy of our compensation strategy, potential modifications to that strategy and new trends, plans or approaches to compensation, at various meetings throughout the year.

        The Compensation Committee reviews and approves the compensation of the Chief Executive Officer and our other executive officers, including annual base salaries, target performance bonus percentages, annual and long-term incentive or bonus awards, employment agreements, and severance and change in control agreements/provisions, in each case as, when and if appropriate, and any special or supplemental benefits. For executives other than the Chief Executive Officer, the Compensation Committee solicits and considers evaluations and recommendations submitted to the Compensation Committee by the Chief Executive Officer. The Compensation Committee evaluates the performance of the Chief Executive Officer in light of company and individual goals and objectives, and makes appropriate recommendations for improving performance. In performing the evaluation, the Chair of the Compensation Committee may solicit comments from the other non-employee members of the Board and lead the Board in an overall review of the Chief Executive Officer's performance in an executive session of non-employee Board members.

        For all executives as part of its deliberations, the Compensation Committee may review and consider, as appropriate, materials such as financial reports and projections, operational data, tax and accounting information, tally sheets that set forth the total compensation that may become payable to executives in various hypothetical scenarios, executive stock ownership information, company stock performance data, analyses of historical executive compensation levels and current company-wide compensation levels.

Nominating and Corporate Governance Committee

        The Nominating and Corporate Governance Committee is responsible for (1) identifying individuals qualified to become members of the Board; (2) reviewing the qualifications and recommending director nominees to the Board prior to each Annual Meeting of stockholders; (3) recommending the structure, membership and governance of the various standing committees of the Board; (4) developingconsidering and recommending to the Board a setboard of Corporate Governance Guidelines; (5) planning fordirectors the successionfrequency of managementthe advisory vote on executive compensation; and Board members; (6) providing a review function for

authorizing share repurchases from terminated service providers.
Since December 2020, the compensation committee has consisted of three directors: Drs. Topper (chairman), Cui and Thompson. Our board of directors has affirmatively determined that all members of the Board and overseeing an annual review of the Board's performance; and (7) providing oversight to the development, implementation and enforcement of our Code of Business Conduct and Ethics.

        The Nominating and Corporate Governance Committeecompensation committee are independent, as independence is currently composed of four directors, Dr. Furst (Chairman), Mr. Leff, Mr. Moore and Mr. Sekhri. Mr. Leff will no longer be a member of our Nominating and Corporate Governance Committee following the expiration of his term as a director at the Annual Meeting. All members of the Nominating and Corporate Governance Committee in 2015 were independent (as currently defined in the NASDAQNasdaq listing standards).standards. The Nominating and Corporate Governance Committee was formed following our initial public offering in


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June 2015 and did not meetcompensation committee met five times during the 20152021 fiscal year. The Nominating and Corporate Governance Committeecompensation committee has adopted a written charter that is available to stockholders on our website at www.nivalis.com.

Nominating and Corporate Governance Committee
The purpose of our nominating and corporate governance committee will be to assist our board of directors in discharging its responsibilities relating to:
making recommendations to our board of directors regarding the qualifications, qualities, skills, expertise, characteristics, experience and other criteria required for members of our board of directors;
identifying, evaluating and recommending individuals as members of our board of directors;
making recommendations to our board of directors the nominees for submission to stockholders for approval at the time of the annual meeting of stockholders;
making recommendations to our board of directors regarding the members of our board of directors to serve as committee members and chairpersons of each of our committees of the board of directors; and
making recommendations to our board of directors regarding board composition, size, and leadership structure.
The nominating and corporate governance committee consists of three directors; Drs. Thompson (chairman) and Cui and Mr. Conway. All members of the nominating and corporate governance committee in 2021 were independent (as currently defined in the Nasdaq listing standards). The nominating and corporate governance committee met three times during 2021. Our board of directors has adopted a written charter for the nominating and corporate governance committee that is available to stockholders on our website at http://www.alpineimmunesciences.com.
The nominating and corporate governance committee selects as candidates for appointment or nomination to the board of directors, individuals of high personal and professional integrity and ability who can contribute to the board of directors’ effectiveness in serving the interests of our stockholders. Director Nominations

nominees are expected to have considerable management experience that would be relevant to our current and expected future business directions, a track record of accomplishment and a commitment to ethical business practices. The Boardnominating and corporate governance committee also considers diversity in professional experience and skill sets in identifying nominees for director. Our board of directors, along with the nominating and corporate governance committee, utilizes its own resources to identify qualified candidates that meet these criteria to join our board of directors and may, in the future, use an executive recruiting firm to assist in the identification and evaluation of such qualified candidates. For these services, an executive recruiting firm may be paid a fee.

Our board of directors also believes that the board should be a diverse body. In evaluating candidates for director nominations, the nominating and corporate governance committee considers all aspects of each candidate’s qualifications and competencies in light of our needs, with a view towards creating a board of directors with diverse experiences and perspectives, including diversity with respect to race, gender, geography and areas of expertise.
The nominating and corporate governance committee has not established a procedure for considering director candidates recommended by our stockholders, but intends to evaluate candidates nominated by stockholders in the same manner as other
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candidates. Our board of directors and nominating and corporate governance committee believe that they can identify appropriate candidates for our board of directors. If deemed appropriate, we may also engage a professional search firm to assist in the identification of candidates for our board of directors.
Stockholders may nominate candidates for director in accordance with the advance notice and other procedures contained in our amended and restated bylaws.
The responsibilities of the nominating and corporate governance committee relating to corporate governance include, but are not limited to, the following:
developing and recommending to our board of directors the governance principles applicable to us;
overseeing compliance with our Corporate Governance Guidelines and recommending proposed changes, if appropriate;
reviewing and assessing the effectiveness of our compliance programs;
considering and making recommendations regarding resignation offered by a member of our board of directors;
identify and make recommendations regarding the selection and approval of vacancies on our board of directors;
developing and recommending independence standards applicable to our board of directors;
overseeing orientation and continuing education for our board of directors;
developing procedures for stockholders and other interested parties to communicate with our board of directors; and
overseeing the succession planning process for management.
Additional responsibilities of the nominating and corporate governance committee include, but are not limited to, the following:
developing, administering and overseeing an annual performance review of our board of directors; and
working with other committees of our board of directors to ensure effective and consistent processes for annual committee performance evaluations.
Considerations in Evaluating Director Nominees
Our board of directors has adopted a process for identifying and evaluating director nominees, including stockholder nominees. Before recommending an individual to the Boardboard of directors for Boardboard membership, the Nominatingnominating and Corporate Governance Committeecorporate governance committee confers with its members, other directors and Nivalis'our management team for potential candidates for the Board.board. The Nominatingnominating and Corporate Governance Committeecorporate governance committee also uses its network of contacts to identify potential candidates and, if it deems appropriate, may also engage a professional search firm. The Nominatingnominating and Corporate Governance Committeecorporate governance committee will consider stockholders'stockholders’ recommendations for nominees to serve as director if notice is timely received by our Corporate Secretary.corporate secretary. Candidates nominated by stockholders will be evaluated in the same manner as other candidates. The Nominatingnominating and Corporate Governance Committeecorporate governance committee keeps the Boardboard of directors apprised of its discussions with potential nominees, and the names of potential nominees received from its current directors, management, and stockholders, if the stockholder notice of nomination is timely made.

We seek to align Boardboard composition with our strategic direction so that Board members of our board of directors bring skills, experience and backgrounds that are relevant to the key strategic and operational issues that they will oversee and approve. Although the Boardboard of directors has not adopted a fixed set of minimum qualifications for candidates for Boardboard membership, the Nominatingnominating and Corporate Governance Committeecorporate governance committee generally considers several factors in its evaluation of a potential member, which include integrity, character, independent judgment, breadth of experience, insight, knowledge and business acumen. Leadership skills and executive experience, expertise in the pharmaceutical, biotechnology or related industries, familiarity with issues affecting global businesses, financial and accounting knowledge, prior experience in our core markets, expertise in capital markets, strategic planning and marketing expertise, among others, may also be among the relevant selection criteria. In addition, we strive to maintain a Boardboard of directors that reflects a diversity of experience and personal background. These criteria will vary over time depending on the needs of the Board.board of directors. Accordingly, the Boardboard of directors may adopt new criteria and amend or abandon existing criteria as and when it determines such action to be appropriate.

In the case of incumbent directors whose terms of office are set to expire, the Nominatingnominating and Corporate Governance Committeecorporate governance committee reviews these directors'directors’ overall contributions to the company and the Boardboard of directors during their terms, including level of attendance, level of participation and contribution to the Board'sboard of directors’ responsibilities and actions, and any relationships and transactions that might impair the directors'directors’ independence. In the case of new director candidates, the Nominatingnominating and Corporate Governance Committeecorporate governance committee also determines whether the nominee is independent for NASDAQNasdaq and SEC purposes, which determination is based upon applicable NASDAQNasdaq listing standards, applicable SEC rules and regulations and the advice of counsel, if necessary. The Nominatingnominating and Corporate Governance Committeecorporate governance committee conducts any appropriate and necessary inquiries into the backgrounds and qualifications of possible candidates after considering the function and needs of the Board.board of
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directors. The Nominatingnominating and Corporate Governance Committeecorporate governance committee meets to discuss and consider the candidates'candidates’ qualifications and then determines whether to recommend a nominee to the Boardboard of directors by majority vote.

        Stockholders who wish to recommend individuals

The nominating and corporate governance committee will evaluate stockholder recommendations of candidates for consideration bydirectors in accordance with its charter, our bylaws and the Nominating and Corporate Governance Committee to become nominees for election to the Board may do so by delivering a written recommendation to the Nominating and Corporate Governance Committee addressed to the Corporate Secretary, between 90 and 120 days before the one year anniversary date of our last Annual Meeting of Stockholders.regular nominee criteria described above. Recommendations must include certain information, required by our Bylaws, including the full name of the proposed nominee, a description of the proposed nominee'snominee’s business experience for at least the previous five years, complete biographical information, a description


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of the proposed nominee'snominee’s qualifications as a director, a representation that the recommending stockholder is a beneficial or record owner of Nivalisour stock, other information that would be required to be disclosed in a proxy statement filed by Nivalisus in connection with an Annual Meetingannual meeting of stockholders, and any other information we may require to verify the independence of the proposed nominee. Any such submission must be accompanied by the written consent of the proposed nominee to be named as a nominee and to serve as a director if elected.

Eligible stockholders wishing to recommend a director candidate for nomination should contact our corporate secretary in writing.

In 2015,2021, the Nominatingnominating and Corporate Governance Committeecorporate governance committee did not pay any fees to assist in the process of identifying or evaluating director candidates.

Stockholder and Interested Party Communications with the Board of Directors
Stockholders and interested parties wishing to communicate with a non-management member of the board of directors may do so by writing to such director, and mailing the correspondence to: Alpine Immune Sciences, Inc., Attention: Corporate Secretary, 188 East Blaine Street, Suite 200, Seattle, Washington 98102. Our Corporate Secretary, in consultation with appropriate directors as necessary, will review all incoming communications and screen for communications that (1) are solicitations for products and services, (2) relate to matters of a personal nature not relevant for our stockholders to act on or for our board to consider and (3) matters that are of a type that render them improper or irrelevant to the functioning of our board or our business, for example, mass mailings, product complaints or inquiries, job inquiries, business solicitations and patently offensive or otherwise inappropriate material. Subject to these screening procedures, all such stockholder communications will be forwarded to the appropriate committee of the board of directors or non-management director.
Corporate Governance Guidelines
Our board of directors has adopted a set of guidelines that establish the corporate governance policies pursuant to which our board of directors intends to conduct its oversight of our business and affairs in accordance with its fiduciary responsibilities. These guidelines address, among other items, the responsibilities of our directors, the structure and composition of our board of directors and corporate governance policies and standards applicable to us in general. Our corporate governance guidelines are posted on the Corporate Governance portion of our website at http://ir.alpineimmunesciences.com/governance.
Code of Business Conduct and Ethics

We haveare committed to the highest standards of integrity and ethics in the way we conduct our business. Our board of directors has adopted the Nivalis Therapeutics, Inc.a Code of Business Conduct and Ethics, thatwhich applies to all of our employees, officers and directors, including our chief executive officer, chief financial officer, and employees. Theother executive and senior financial officers. Our Code of Business Conduct and Ethics establishes our policies and expectations with respect to a wide range of business conduct, including preparation and maintenance of financial and accounting information, compliance with laws and conflicts of interest. In accordance with our Code of Business Conduct and Ethics, each of our employees, officers and directors is required to report suspected or actual violations to the extent permitted by law. In addition, our board of directors has adopted separate policies and procedures concerning the receipt and investigation of complaints relating to accounting, internal accounting controls or auditing matters, which are administered by our audit committee. Our Code of Business Conduct and Ethics is available to stockholdersposted on the Corporate Governance portion of our web sitewebsite at www.nivalis.com. If we make any substantivehttp://ir.alpineimmunesciences.com/governance. We will post amendments to theour Code of Business Conduct and Ethics or grant any waiver from a provisionwaivers of the Code to any executive officer or director, we will promptly disclose the nature of the amendment or waiver on our web site at www.nivalis.com. To date, there have been no waivers under the Code of Business Conduct and Ethics.

Stockholder Communications withEthics for directors and executive officers on the Board of Directors

        Stockholders and other interested parties may contact any member (or all members) of the Board (including, without limitation, the non-management directors as a group), any Board committee or any Chair of any such committee by U.S. mail or e-mail. To communicate with the Board, any individual director or any group or committeesame website.

Risk Management
Our board of directors correspondence should be addressedhas extensive involvement in the oversight of risk management related to us and our business and accomplishes this oversight through the Board or any such individual director or group orregular reporting by our board committees. Our audit committee represents the board of directors by either name or title. Such correspondence should be sent c/o Chief Financial Officer, Nivalis Therapeutics, Inc., 3122 Sterling Circle, Suite 200, Boulder, CO 80301 or to BoardofDirectors@nivalis.com.

        All communications received as set forth inperiodically reviewing our accounting, reporting and financial practices, including the preceding paragraph will be opened byintegrity of our consolidated financial statements, the Chief Financial Officersurveillance of administrative and financial controls and our compliance with legal and regulatory requirements. Through its regular meetings with management, including the finance, legal and internal audit (if applicable)

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functions, the audit committee reviews and discusses all significant areas of our business and summarizes for the sole purposeboard of determining whetherdirectors all areas of risk and the contents representappropriate mitigating factors. Our nominating and corporate governance committee assists our board of directors with its responsibility of overseeing the management associated with board organization, membership and structure, as well as corporate governance. Our compensation committee assists the boards of directors by assessing risks created by incentives inherent in our compensation policies.
In addition, our president and chief executive officer and other executive officers regularly report to the non-executive directors and the audit, the compensation and the nominating and corporate governance committees to ensure effective and efficient oversight of our activities and to assist in proper risk management and the ongoing evaluation of management controls. We believe that the leadership structure of our board of directors provides appropriate risk oversight of our activities.
Non-Employee Director Compensation
Directors who are also our employees receive no additional compensation for their service as a messagedirector. Compensation for Dr. Gold, who serves as our chief executive officer, is discussed under the caption “Executive Compensation.” We reimburse our directors for expenses associated with attending meetings of our board of directors and meetings of committees of our board.
2021 Director Compensation Table
The following table shows for the fiscal year ended December 31, 2021 certain information with respect to the compensation of our non-employee directors who served on our board of directors during any part of 2021.
NameFees Earned
or paid in
Cash ($)
Option Awards ($)(1)Total ($)
Robert Conway(2)58,750 68,402 127,152 
Xiangmin Cui, Ph.D.(3)48,750 68,402 117,152 
Natasha Hernday(4)47,500 68,402 115,902 
Christopher Peetz(5)47,500 68,402 115,902 
Peter Thompson, M.D.(6)52,500 68,402 120,902 
James N. Topper, M.D., Ph.D.(7)50,000 68,402 118,402 
Jay Venkatesan, M.D.(8)40,000 68,402 108,402 
(1)Amounts shown in this column do not reflect dollar amounts actually received by our non-employee directors. Instead, these amounts reflect the aggregate grant date fair value of the stock options granted, computed in accordance with the provisions of FASB ASC Topic 718. For additional details regarding the assumptions and methodologies used to calculate the amounts reported, please see the discussion of equity awards as disclosed in Note 12 to our directors. Any contents thatconsolidated financial statements contained in our annual report on Form 10-K filed with the SEC on March 17, 2022. The assumptions and methodologies used to determine fair market value for stock options granted to our non-employee directors are not hostile or offensive materialidentical to those used for stock options granted to our employees and are relatedother service providers.
(2)As of December 31, 2021, Mr. Conway held outstanding options to the businesspurchase 38,455 shares of common stock.
(3)As of December 31, 2021, Dr. Cui held outstanding options to purchase 22,950 shares of common stock.
(4)As of December 31, 2021, Ms. Hernday held outstanding options to purchase 22,650 shares of common stock.
(5)As of December 31, 2021, Mr. Peetz held outstanding options to purchase 30,600 shares of common stock.
(6)As of December 31, 2021, Dr. Thompson held outstanding options to purchase 30,600 shares of common stock
(7)As of December 31, 2021, Dr. Topper held outstanding options to purchase 30,600 shares of common stock.
(8)As of December 31, 2021, Dr. Venkatesan held outstanding options to purchase 122,713 shares of common stock.
Director Compensation Policy
Our board of directors has approved a director compensation policy for our non-employee directors, which was most recently amended in March 2021. For purposes of the Board will be forwarded promptly topolicy, the addressee. In the case of communications to the Board or any group or committeeboard of directors the Chief Financial Officer will forward copiesclassified each director into one of the contents to send to eachtwo following categories: (1) an “employee director,” is a director who is employed by us; and (2) a member“non-employee director,” is a director who is not an employee director. Only non-employee directors will receive compensation under the director compensation policy. Non-employee directors will receive compensation in the form of equity and cash under the director compensation policy, as described below. We believe our non-employee director compensation program provides reasonable
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compensation to our non-employee directors that is appropriately aligned with our peers and is commensurate with the services and contributions of our non-employee directors.
Non-employee directors receive an initial stock option grant to purchase shares of our common stock upon appointment or election to the board of directors. Pursuant to the policy, the size of the group or committeeinitial stock option grant is 20,000 shares. Non-employee directors also receive on an annual basis, an additional stock option grant to whichpurchase 10,000 shares. The annual grants occur on the communication is addressed. Any communicationfirst trading day in January of each year. All options have an exercise price equal to the closing price of our common stock as reported by Nasdaq on the date of grant, are subject to this policy thatvesting in 36 equal monthly installments over a three-year period from the grant date for initial option grants, or in 12 equal monthly installments over a 12-month period from the grant date for annual stock option grants, subject to further evaluation by the compensation committee. On a change in control, all outstanding, unvested options held by non-employee directors are expected to vest in full.
Each non-employee director is addressedeligible to receive the Chairman of the Audit Committee, the non-management members of the Board as a group or the independent members of the Board as a groupfollowing cash annual retainer, which will be shared with management only upon the instructionpaid quarterly in arrears on a prorated basis.
Annual retainer for board membership$40,000 
Annual retainer for board chairperson25,000 
Annual retainer for audit committee chairperson15,000 
Annual retainer for audit committee member7,500 
Annual retainer for compensation committee chairperson10,000 
Annual retainer for compensation committee member5,000 
Annual retainer for nominating and corporate governance committee chairperson7,500 
Annual retainer for nominating and corporate governance committee member3,750 
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Table of the Chairman of the Audit Committee. All other communications will be shared with management at the time they are forwarded to the Board.

Compensation Committee Interlocks and Insider ParticipationContents

        None of our executive officers serves as a member

PROPOSAL NO. 2
RATIFICATION OF APPOINTMENT OF
INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
The audit committee of the board of directors or compensation committee, or other committee serving an equivalent function, of any other entity that has one or more of its executive officers serving as a member of our board of directors or our compensation committee. None of the members of our compensation committee is, or has ever been, an officer or employee of our company.


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PROPOSAL 2

RATIFICATION OF SELECTION OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

        The Audit Committee has selectedappointed Ernst & Young LLP, or E&Y,EY, independent registered public accountants, to audit our financial statements for the year ending December 31, 2022.

During the year ended December 31, 2021, EY served as our independent registered public accounting firm for the fiscal year ending December 31, 2016firm.
Notwithstanding its selection and has further directed that management submiteven if our stockholders ratify the selection, ofour audit committee, in its discretion, may appoint another independent registered public accounting firm for ratification by the stockholders at the Annual Meeting. Representatives of E&Y are expected to be present at the Annual Meeting. They will have an opportunity to make a statement if they so desire and will be available to respond to appropriate questions.

        Neither our Bylaws nor other governing documents or law require stockholder ratification of the selection of E&Y as our independent registered public accounting firm. However, the Audit Committee is submitting the selection of E&Y to the stockholders for ratification as a matter of good corporate practice. If the stockholders fail to ratify the selection, the Audit Committee will reconsider whether or not to retain that firm. Even if the selection is ratified, the Audit Committee in its discretion may direct the appointment of different independent auditors at any time during the year if they determinethe audit committee believes that such a change would be in the best interests of our company and our stockholders.

        The affirmative vote of At the holders of a majority of the shares present in person or represented by proxy and entitled to vote on the matter at the2022 Annual Meeting, will be requiredthe stockholders are being asked to ratify the selectionappointment of E&Y.

Principal Accountant Fees and Services

        The following table represents aggregate fees billed, or expected to be billed, to us for the fiscal years ended December 31, 2015 and December 31, 2014 by E&Y,EY as our independent registered public accounting firm for such years.

 
 Fiscal Year
Ended 2015
 Fiscal Year
Ended 2014
 

Audit Fees(1)

 $916,000(2)$110,000 

Audit-related Fees

     

Tax Fees

     

All Other Fees

     

Total Fees

 $916,000 $110,000 

the year ending December 31, 2022. Our audit committee is submitting the selection of EY to our stockholders because we value our stockholders’ views on our independent registered public accounting firm and as a matter of good corporate governance.
(1)
Audit Representatives of EY will be present at the 2022 Annual Meeting, and they will have an opportunity to make statements and will be available to respond to appropriate questions from stockholders.
If the stockholders do not ratify the appointment of EY, the audit committee may reconsider the appointment.
Fees includePaid to the Independent Registered Public Accounting Firm
The following table presents fees for professional audit services and other services rendered to our company by EY for the (i)years ended December 31, 2021 and 2020.
 Year Ended December 31,
Fee Category20212020
Audit fees(1)$725,235 $531,725 
Audit-related fees(2)— 30,000 
Tax fees(3)60,532 45,873 
All other fees(4)— — 
Total fees$785,767 $607,598 
(1)Audit fees consist of fees for professional services provided in connection with the audit of theour annual consolidated financial statements, includedreview of our quarterly consolidated financial statements, procedures for comfort letters, consents and assistance with and review of documents filed with the SEC.
(2)Audit-related fees consist of assurance and related services that are reasonably related to the performance of the audit or review of our financial statements and are not reported under “Audit Fees”.
(3)Tax fees consist of fees associated with tax compliance, tax advice and tax planning fees.
(4)All other fees include any fees billed that are not audit fees, audit-related fees or tax fees.
Auditor Independence
In 2021, there were no other professional services provided by EY that would have required the audit committee to consider their compatibility with maintaining the independence of EY.
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Audit Committee Policy on Pre-Approval of Audit and Permissible Non-Audit Services of Independent Registered Public Accounting Firm
Pursuant to its charter, the audit committee must review and approve, in advance, the scope and plans for the audits and the audit fees and approve in advance (or, where permitted under the rules and regulations of the SEC, subsequently) all non-audit and tax services to be performed by the independent auditor that are not otherwise prohibited by law and any associated fees. All fees paid to EY for 2021 and 2020 were pre-approved by our Form 10-K foraudit committee. The audit committee may delegate to one or more members of the committee the authority to pre-approve audit and permissible non-audit services, as long as this pre-approval is presented to the full committee at scheduled meetings.
THE BOARD OF DIRECTORS RECOMMENDS A VOTE “FOR” PROPOSAL #2
THE RATIFICATION OF THE APPOINTMENT OF ERNST & YOUNG LLP
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REPORT OF THE AUDIT COMMITTEE
The audit committee of the board of directors is currently comprised of three independent directors and operates under a written charter, which is reviewed on an annual basis and amended as necessary by the board of directors upon recommendation by the audit committee.
During the fiscal year ended December 31, 20152021, the audit committee has consisted of: Messrs. Conway (chairman) and Peetz and Ms. Hernday (effective December 10, 2020). Our board of directors has determined that Mr. Conway is an “audit committee financial expert” as defined in the SEC rules and made a qualitative assessment of Mr. Conway’s level of knowledge and experience based on several factors, including his prior experience, business acumen and independence. Our board of directors has concluded that the composition of the audit committee meets the requirements for independence under the rules and regulations of Nasdaq and the SEC.
The audit committee appoints an accounting firm as our independent registered public accounting firm. The independent registered public accounting firm is responsible for performing an independent audit of our financial statements in accordance with generally accepted auditing standards and issuing a report thereon. Management is responsible for our internal controls and the financial reporting process. The audit committee is responsible for monitoring and overseeing these processes.
The audit committee met five times during 2021. The meetings were designed to provide information to the audit committee necessary for it to conduct its oversight function of the external financial reporting activities and audit process of our company, and to facilitate and encourage communication between the audit committee, management and our independent registered public accounting firm, Ernst & Young LLP. Management represented to the audit committee that our financial statements were prepared in accordance with generally accepted accounting principles. The audit committee reviewed and discussed the audited financial statements for fiscal year 2021 with management and the independent registered public accounting firm. The audit committee also instructed the independent registered public accounting firm that the audit committee expects to be advised if there are any subjects that require special attention.
The audit committee discussed with the independent registered public accounting firm the matters required to be discussed by the applicable requirements of the Public Company Accounting Oversight Board (“PCAOB”) and the SEC.
The audit committee has also received the written disclosures and the letter from the independent registered public accounting firm, Ernst & Young LLP, required by applicable requirements of the PCAOB regarding the independent registered public accounting firm’s communications with the audit committee concerning independence, and has discussed with Ernst & Young LLP that firm’s independence.
Based on its review of the audited financial statements and the various discussions noted above, the audit committee recommended to the board of directors that the audited financial statements be included in our annual report on Form 10-K for the year ended December 31, 2021 for filing with the SEC.
Respectfully submitted,
THE AUDIT COMMITTEE OF
THE BOARD OF DIRECTORS OF ALPINE IMMUNE SCIENCES, INC.
Robert Conway, Chairman
Natasha Hernday
Christopher Peetz
The material in this report is not “soliciting material,” is not be deemed “filed” with the SEC, and is not to be incorporated by reference into any filing made by Alpine Immune Sciences, Inc. under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date hereof and irrespective of any general incorporation language in any such filing.
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PROPOSAL NO. 3
ADVISORY VOTE ON COMPENSATION OF NAMED EXECUTIVE OFFICERS (“SAY-ON-PAY”)
Pursuant to Section 14A of the Exchange Act and in accordance with SEC rules, we are providing our registrationstockholders with the opportunity to vote at the Annual Meeting on Form S-1this advisory or non-binding proposal regarding the compensation of our named executive officers (commonly referred to as “say-on-pay”).
This say-on-pay proposal gives our stockholders the opportunity to express their views on the compensation of our named executive officers as a whole. This vote is not intended to address any specific item of compensation or any specific named executive officer, but rather the overall compensation of all of our named executive officers and the policies and practices described in this proxy statement. Because the vote on this proposal is advisory in nature, it will not affect any compensation already paid or awarded to our named executive officers and will not be binding on us, the board of directors or the compensation committee. The say-on-pay vote will, however, provide information to us regarding investor sentiment about our executive compensation policies and practices, which the compensation committee will be able to consider when determining executive compensation for the remainder of the current fiscal year and beyond. Our board of directors and our compensation committee value the opinions of our stockholders. To the extent there is any significant vote against the compensation of our named executive officers as disclosed in this proxy statement, we will endeavor to communicate with stockholders to better understand the concerns that influenced the vote and consider our stockholders’ concerns, and our compensation committee will evaluate whether any actions are necessary to address those concerns.
For more information about the compensation that we paid to our named executive officers during the fiscal year ended December 31, 2014, (ii) review2021, please refer to the “Executive Compensation” sections of interim condensed financial statements includedthis proxy statement, which we believe demonstrates that our executive compensation program was designed appropriately and is working to ensure management's interests are aligned with our stockholders' interests to support long-term stockholder value creation.
We are asking our stockholders to approve the compensation of our named executive officers as described in this proxy statement by voting in favor of the following non-binding resolution:
“RESOLVED, that the stockholders of Alpine Immune Sciences, Inc. approve, on Forms 10-Q and (iii) attest, consent and review services normally provided byan advisory basis, the accountantcompensation of Alpine Immune Sciences, Inc.’s named executive officers, as disclosed in connection with SEC filings.

(2)
Audit Feesthe Alpine Immune Sciences, Inc.’s proxy statement for the fiscal year ended December 31, 2015 also include $671,000 related2022 annual meeting of stockholders pursuant to services provided by E&Y in connection with our initial public offering.

        All fees described above were approved by the Audit Committee.

Pre-Approval Policies and Procedures

        The Audit Committee pre-approved allexecutive compensation disclosure rules of the above services performed by our independent registered public accounting firm in 2015Securities and did not rely onExchange Commission, the waiver of pre-approval requirement provided by paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X promulgated under the Exchange Act. Each year, the services expected to be performed by the independent registered public accounting

compensation tables and related narrative disclosures.”

THE BOARD OF DIRECTORS RECOMMENDS A VOTE “FOR”
THE SAY-ON-PAY APPROVAL OF THE NAMED EXECUTIVE OFFICER COMPENSATION
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firm during the subsequent fiscal year are presented to the Audit Committee for pre-approval. Any pre-approval must describe in writing the particular service or category of services. The Audit Committee charter authorizes the Audit Committee to delegate authority to one of its members the authority to approve certain services provided by our independent registered public accounting firm. To date, the Audit Committee has not delegated such authority nor has it adopted a policy relating to pre-approval of services performed by our independent registered public accounting firm.

THE BOARD OF DIRECTORS RECOMMENDS
A VOTE IN FAVOR OF PROPOSAL 2


EXECUTIVE OFFICERS

The following table sets forth the name, age and position of eachnames of our executive officers, their ages, their positions, and other biographical information as of March 15, 2016.

April 20, 2022, are set forth below. Executive officers are elected by our board of directors to hold office until their successors are elected and qualified. There are no family relationships among our directors or executive officers.
Name
AgePosition

Jon Congleton

Name
52AgePresident,Position
Mitchell H. Gold, M.D.55 Executive Chairman and Chief Executive Officer and Director

Janice Troha

Stanford Peng, M.D., Ph.D.
5851 Chief Operating OfficerPresident and Head of Research and Development

R. Michael Carruthers

Paul Rickey
5843 Senior Vice President, Chief Financial Officer and Corporate Secretary

Sherif Gabriel, Ph.D. 

54Vice President, Research

Steven Shoemaker, M.D. 

64Vice President, Clinical Research and Development, Medical Director

        Jon Congleton.Dr. Gold’s biography can be found under     See Mr. Congleton's biography“Class II Directors Continuing in "Proposal Number 1—ElectionOffice until the 2023 Annual Meeting of Directors."Stockholders.

Janice Troha


Stanford Peng has served as our president and head of research and development since April 2019, prior to which he served as our executive vice president of research and development and chief medical officer since the completion of the merger of Nivalis and Alpine in July 2017, as Alpine’s chief medical officer from September 2016 to February 2017 and as Alpine’s executive vice president of research and development and chief medical officer from February 2017 until completion of the merger. Prior to joining Alpine, Dr. Peng was chief medical officer and head of clinical development at Stemcentrx, providing strategic oversight of the company’s clinical and translational programs from 2015 to 2016. Previously, Dr. Peng was executive medical director at Seattle Genetics where he developed multiple programs for antibody-drug conjugates from 2014 to 2015. Earlier in his career, he directed translational research and auto-immune related clinical trials as head of the Rheumatology Clinical Research Unit at the Benaroya Research Institute from 2009 to 2014 and served as senior director, clinical research and exploratory development at Roche from 2005 to 2008. Between 2009 and 2014, Dr. Peng also served as member physician at Virginia Mason Medical Center. Dr. Peng served as an assistant professor at the Washington University School of Medicine from 2002 to 2005. From 2008 to 2009, Dr. Peng served as senior director at ARYx Therapeutics, Inc. (Nasdaq: ARYX). Dr. Peng received an M.D. and Ph.D. in biology from the Yale University School of Medicine and a B.A. in music and B.S. in biological sciences from Stanford University.
Paul Rickey has served as our Chief Operating Officersenior vice president and chief financial officer since December 2014. From June 2012the completion of the merger of Nivalis and Alpine in July 2017 and prior to December 2014, Ms. Troha was our Executive Vice President of Product Developmentthe merger served as Alpine’s senior vice president and Regulatory Affairs, and from October 2008 to May 2012, shechief financial officer since April 2017. Mr. Rickey has served as our Vice President, Product Developmenttreasurer since December 2018, and Regulatory Affairs.our secretary since March 2019. Mr. Rickey previously served as chief financial officer of Sound Pharmaceuticals, overseeing finance, accounting and human resources from March 2016 to March 2017. Before joining Sound Pharmaceuticals, Mr. Rickey was vice president of finance and administration of Immune Design Corp. from 2009 to May 2015, which was a publicly traded biotechnology company for a portion of his time there, where he helped complete the company’s private offerings, initial public offering, and follow-on financing, and also oversaw the corporate development, accounting and human resource functions. Before joining Immune Design in 2009, Mr. Rickey was corporate controller of Northstar Neuroscience, a publicly-traded medical device company, where he managed the company’s finance and accounting groups following Northstar’s initial public offering. Prior to joining Nivalis, she served ashis role at Northstar Neuroscience, Mr. Rickey was the Site Manager and Vice Presidentaccounting manager for Development and Regulatory Affairs for Endo Pharmaceuticals, Colorado from October 2006Mobliss, Inc., a mobile technology company that was sold to June 2008, and Vice President, Clinical Development and Regulatory Affairs for RxKinetix, from 2001 to 2006. Previously, Ms. Troha held positionsIndex Corp., of increasing responsibility in Product Development, Clinical Research and Regulatory AffairsJapan. Mr. Rickey started his finance career at Cortech from 1994 to 2000 and in Clinical Research at Boehringer Ingelheim Pharmaceuticals from 1984 to 1994. Ms. Troha earned a B.S. in liberal arts and sciencesErnst & Young LLP. Mr. Rickey graduated from the University of the State of New York.

R. Michael Carruthers has served as our Chief Financial OfficerWashington with a B.A. and Secretary since February 4, 2015. From December 1998 to February 2015, he served as Chief Financial Officer for Array BioPharma. Prior to joining Array BioPharma, Mr. Carruthers served as Chief Financial Officer of Sievers Instrument,Masters in Professional Accounting and is a division of Ionics, Inc., and before joining Sievers, was the treasurer and controller for the Waukesha division of Dover Corporation. Mr. Carruthers was previously employed as ancertified public accountant, with Coopers & Lybrand. Mr. Carruthers received a B.S. in accounting from the University of Colorado and a M.B.A. from the University of Chicago.inactive.

Sherif Gabriel, Ph.D.
, has served as our Vice President of Research and Discovery since October 2012. Prior to joining Nivalis, Dr. Gabriel served as an Associate Professor of Pediatrics and the Cystic Fibrosis Center at the University of North Carolina from January 2001 to August 2012. During his tenure at the University of North Carolina, Dr. Gabriel directed the CFTR Molecular Therapy and Correction Core, and he has spent more than 20 years focused on understanding the function of CFTR, and developing treatments for CF. Dr. Gabriel earned both his B.S. and Ph.D. from the University of Saskatchewan, Saskatoon.

Steven Shoemaker, M.D., has served as our Vice President of Clinical Research and Development and as our Medical Director since July 2014. From September 2012 to June 2014, he served as our


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EXECUTIVE COMPENSATION
Overview
Our compensation committee is responsible for the executive compensation programs for our executive officers and reports to our board of Clinical Developmentdirectors on its discussions, decisions and Medical Director,other actions. The compensation committee is authorized to retain the services of one or more executive compensation advisors, as it sees fit, in connection with the establishment of our compensation programs and related policies. Beginning in 2017, the compensation committee retained Radford, a compensation consultant, to provide it with information, recommendations and other advice relating to executive compensation on an ongoing basis. Accordingly, Radford now serves at the discretion of the compensation committee. The compensation committee engaged Radford to assist in developing a group of peer companies to help us determine the appropriate level of overall compensation for our executive officers, as well as assess each separate element of compensation, with a goal of ensuring that the compensation we offer to our executive officers is competitive and fair.
Summary Compensation Table
The following table provides information regarding the compensation of our named executive officers:
Name and Principal PositionYearSalary ($)Option
Awards
($)(1)
Non-Equity
Incentive Plan
Compensation
($)(2)
All Other
Compensation
($)(3)
Total ($)
 
Mitchell H. Gold, M.D.
2021523,000 2,287,813 300,700 — 3,111,513 
Executive Chairman and Chief Executive Officer2020500,000 566,512 317,500 — 1,384,012 
Stanford Peng, M.D., Ph.D.2021496,875 1,345,772 609,400 (4)— 2,452,047 
President and Head of Research and Development2020464,000 226,605 (5)294,640 — 985,245 
Paul Rickey2021400,000 1,076,618 186,000 — 1,662,618 
Senior Vice President and Chief Financial Officer2020382,000 214,016 169,799 — 765,815 
Zelanna Goldberg, M.D. (6)2021180,912 1,140,770 — 365,181 (7)1,686,863 
Former Chief Medical Officer

(1)Amounts shown in this column do not reflect dollar amounts actually received by our named executive officers. Instead, these amounts reflect the aggregate grant date fair value of the stock options granted, computed in accordance with the provisions of FASB ASC Topic 718. For additional details regarding the assumptions and methodologies used to calculate the amounts reported, please see the discussion of equity awards contained in Note 12 to our consolidated financial statements contained in our annual report on Form 10-K filed with the SEC on March 17, 2022.
(2)2021 amounts represent cash bonuses earned by the named executive officers pursuant to our Executive Incentive Compensation Plan, or Incentive Plan, for 2021 performance, paid in 2022. 2020 amounts represent cash bonuses earned by the named executive officers pursuant to our Incentive Plan for 2020 performance, paid in 2021. For more information, see "—Executive Incentive Compensation Plan" below.
(3)Perquisites and personal benefits are excluded if the total value of all perquisites and personal benefits for each named executive officer is less than $10,000.
(4)Non-Equity Incentive Plan awards for Dr. Peng includes a $300,000 payment related to the achievement of a pre-development milestone pursuant to our collaboration agreement with AbbVie. The bonus objective was achieved and paid in August 2021. See further discussion described under the caption “Executive Compensation — Executive Incentive Compensation Plan.”
(5)Reflects the probable value of $0 for Dr. Peng’s September 15, 2020 performance-based option award. The maximum value of such award is $462,921.
(6)Dr. Goldberg commenced employment with us in June 2021 and separated from our employ on October 8, 2021.
(7)Other compensation for Dr. Goldberg includes (a) severance of $352,500, of which $97,917 was paid during the year ended December 31, 2021, and (b) approximately $12,681 in COBRA reimbursement premiums, of which $2,768 was paid during the year ended December 31, 2021. For more information, see "—Executive Employment Arrangements with Our Named Executive Officers" below.
23

Executive Employment Arrangements with Our Named Executive Officers
We entered into amended and restated executive employment agreements with each of Drs. Gold and Peng and Mr. Rickey effective January 1, 2018. In January 2021, the compensation committee approved adjusted salaries for Drs. Gold and Peng and Mr. Rickey of $523,000, $485,000, and $400,000 respectively. In March 2021, the compensation committee approved an adjusted salary for Dr. Peng of $500,000. In January 2022, the compensation committee approved adjusted salaries for Drs. Gold and Peng and Mr. Rickey of $544,000, $525,000, and $416,000 respectively. Additionally, Drs. Gold and Peng and Mr. Rickey are eligible to earn cash bonuses of up to 50%, 50% and 40%, respectively, of their base salary under our Executive Incentive Compensation Plan described below. These agreements also provide for certain severance benefits upon the termination of employment or a change in control of the company pursuant to our Change in Control and Severance Policy, or the Severance Policy.
Pursuant to the Severance Policy, if we terminate the employment of any of Dr. Gold, Dr. Peng or Mr. Rickey, each an Eligible Employee, other than for cause, death or disability, or the Eligible Employee resigns for good reason on or within 12 months following a change of control, then, subject to the Eligible Employee signing and not revoking a separation agreement and release of claims and continuing to adhere to the Eligible Employee’s non-competition, non-disclosure and invention assignment agreement, such Eligible Employee will be eligible to receive the following severance benefits, less applicable tax withholdings:
A lump-sum payment totaling 100% (or, in case of Dr. Gold, 150%) of the Eligible Employee’s applicable annual base salary.
A lump-sum payment equal to (1) 100% of the Eligible Employee’s applicable target annual bonus plus (2) a payment equal to the Eligible Employee’s pro-rated applicable target annual bonus.
100% of the Eligible Employee’s then-outstanding and unvested time-based equity awards will become vested and exercisable.
Payment or reimbursement of continued health coverage for the Eligible Employee and the Eligible Employee’s dependents under COBRA for a period of up to 12 months (or, in Dr. Gold’s case, 18 months).
Further, under the Severance Policy, if we terminate an Eligible Employee’s employment other than for cause, death or disability or such Eligible Employee resigns for good reason at any time other than during the period lasting from the date of a change of control or within 12 months thereafter, then, subject to the Severance Conditions, such Eligible Employee will be eligible to receive the following severance benefits, less applicable tax withholdings:
Continued payments totaling 75% (or, in Dr. Gold’s case, 100%) of the Eligible Employee’s applicable annual base salary over a period of 9 months (or in Dr. Gold’s case, 12 months).
100% of the Eligible Employee’s then-outstanding and unvested time-based equity awards granted prior to the closing of the merger by and between Alpine Immune Sciences, Inc. and Nivalis Therapeutics, Inc. that would have otherwise vested during the 12-month period following the date of the Eligible Employee’s termination, and 0% in all other cases.
Payment or reimbursement of continued health coverage for the Eligible Employee and the Eligible Employee’s dependents under COBRA for a period of up to 9 months (or, in Dr. Gold’s case, 12 months).

We entered into an executive employment agreement with Dr. Goldberg effective June 1, 2021, providing for a base salary of $470,000 per year, a cash bonus of up to 40% of her base salary under our Executive Incentive Compensation Plan, and a one-time inducement award grant consisting of an option to purchase 160,000 shares of our common stock (subject to time-based vesting provisions), which award was approved and granted by our board of directors on June 1, 2021. None of the shares subject to this award had vested as of the date of Dr. Goldberg's termination from our company. Dr. Goldberg’s agreement also provided for certain severance benefits upon the termination of employment or a change in control of the company pursuant to our Change in Control and Severance Policy. On October 8, 2021, in connection with Dr. Goldberg’s separation on the same date, we entered into a separation agreement and release with Dr. Goldberg, pursuant to which we agreed to provide Dr. Goldberg an aggregate of $352,500 in severance payments, payable in equal monthly installments over the 9 months following her separation from our company, as well as payment or reimbursement of continued health coverage for Dr. Goldberg and her dependents under COBRA for the same 9-month period. As consideration for the foregoing severance payments, Dr. Goldberg agreed to release us from any and all claims, including those related to her employment or the termination thereof.
24

Executive Incentive Compensation Plan
Each of our executive officers is eligible for bonuses under our Executive Incentive Compensation Plan, which plan was approved by our board of directors in March 2019, and has an established target bonus amount as set forth in the section
— Executive Employment Arrangements with our Named Executive Officers.” The actual amount of such bonuses is tied to the achievement of various objectives for each year.

For 2021, the compensation committee of our board of directors determined that Dr. Gold's bonus would be based solely on achievement of corporate objectives (including advancement of our ALPN-101, ALPN-202 and ALPN-303 development programs, enhancement of our discovery portfolio and achievement of other corporate objectives, such as obtaining business development opportunities), and that the bonuses for Dr. Peng and Mr. Rickey would be based on 75% achievement of the previously noted corporate objectives and 25% individual objectives developed in consultation with Dr. Gold.

In January 2022, our compensation committee determined that the 2021 corporate objectives had been achieved at the 115% level and that Dr. Peng’s and Mr. Rickey’s individual goals had been achieved at the 150% and 120% levels, respectively, resulting in payments of $309,400 and $186,000, respectively. The compensation committee recognized achievement of Dr. Peng’s and Mr. Rickey’s individual goals above the 100% level in consideration of their significant individual efforts to achieve certain milestones in our collaboration with AbbVie, completion of our September 2021 private placement, and our entry into our license and collaboration agreement with Horizon in December 2021. Dr. Gold received a payment of $300,700. The amounts earned in fiscal 2021 were paid in 2022.

For 2020, the compensation committee of our board of directors determined that Dr. Gold’s bonus would be based solely on achievement of corporate objectives (including advancement of our ALPN-101, ALPN-202 and ALPN-303 development programs, enhancement of our discovery portfolio and achievement of other corporate objectives such as extension of our cash runway), and that the bonuses for Dr. Peng and Mr. Rickey would be based 75% on achievement of the previously noted corporate objectives and 25% individual objectives developed in consultation with Dr. Gold.

In January 2021, our compensation committee determined that the 2020 corporate objectives had been achieved at the 127% level and that Dr. Peng’s and Mr. Rickey’s individual goals had been achieved at the 127% level. The amounts earned in fiscal 2020 were paid in 2021 and Dr. Gold received a payment of $317,500, Dr. Peng received a payment of $294,640, and Mr. Rickey received a payment of $169,799.

In addition, in September 2020, our compensation committee authorized an additional bonus opportunity for Dr. Peng under our Executive Compensation Plan with a target amount of $300,000. This bonus was based on achievement of a pre-development milestone pursuant to Section 6.2 of our collaboration agreement with AbbVie. The bonus objective was achieved and paid in August 2021.
25

Outstanding Equity Awards at December 31, 2021
The following table provides information regarding the equity awards outstanding at December 31, 2021 held by each of our named executive officers.
   Option Awards
NameVesting
Commencement
Date
Grant
Date
Number of
Securities
Underlying
Unexercised
Options (#)
Exercisable
Number of
Securities
Underlying
Unexercised
Options (#)
Unexercisable
Equity Incentive Plan Awards: Number of Securities Underlying Unexercised Unearned Options (#) Option
Exercise
Price ($)
Option
Expiration
Date
Mitchell H. Gold01/16/201512/16/201551,242 — — 0.45 12/15/2025
01/20/201703/14/2017300,624 — — 0.65 03/13/2027
01/20/201704/12/2017208,916 — — 5.02 04/11/2027
01/02/201801/02/201868,541 1,459 — (1)11.31 01/01/2028
02/06/201902/06/2019141,666 58,334 — (1)6.51 02/05/2029
01/23/202001/23/2020129,375 140,625 — (1)3.23 01/22/2030
01/05/202101/05/2021— 255,000 — (1)13.20 01/04/2031
Paul Rickey04/01/201704/12/201774,535 — — 5.02 04/11/2027
01/02/201801/02/201844,062 938 — (1)11.31 01/01/2028
02/06/201902/06/201953,125 21,875 — (1)6.51 02/05/2029
01/23/202001/23/202048,875 53,125 — (1)3.23 01/22/2030
01/05/202101/05/2021— 120,000 — (1)13.20 01/04/2031
Stanford Peng09/06/201609/22/2016161,492 — — 0.65 09/21/2026
09/06/201603/14/201737,267 — — 0.65 03/13/2027
01/02/201801/02/201863,645 1,355 — (1)11.31 01/01/2028
09/28/201809/28/2018125,000 125,000 — (2)6.33 09/27/2028
02/06/201902/06/201953,125 21,875 — (1)6.51 02/05/2029
04/22/201904/22/201950,000 — — (3)7.20 04/21/2029
01/23/202001/23/202051,750 56,250 — (1)3.23 01/22/2030
09/15/202009/15/2020— — 80,000 (4)8.28 09/14/2030
01/05/202101/05/2021— 150,000 — (1)13.20 01/04/2031
Zelanna Goldberg— — — — — — — 
(1)1/4th of the shares will vest on the one-year anniversary of the vesting commencement date, and 1/36th of the remaining shares shall vest on each monthly anniversary thereafter, such that 100% of the shares shall be vested and exercisable as of the four-year anniversary of the vesting commencement date.
(2)1/2 of the shares subject to the option become vested and exercisable on October 1, 2020 and the balance of the shares subject to the option become vested and exercisable on October 1, 2022, subject to continued service through each such date.
(3)100% of the shares underlying the option vested upon the achievement of specified performance goals that were achieved prior to April 16, 2023, as determined by the board of directors or the compensation committee of the board of directors.
(4)The shares underlying the option will vest in two equal tranches upon the achievement of specified performance goals that are achieved on or prior to the expiration of the options, as determined by the board of directors or the compensation committee of the board of directors.


26

Securities Authorized for Issuance Under Equity Compensation Plans
The following table provides information as of December 31, 2021, with respect to the shares of our common stock that may be issued under existing equity compensation plans: 
ABC
Plan CategoryNumber of
Securities to be
Issued Upon
Exercise of
Outstanding
Options and
Rights
Weighted-
Average
Exercise
Price of
Outstanding
Options and
Rights
Number of
Securities
Remaining
Available for
Future
Issuance Under
Equity
Compensation
Plans
(Excluding
Securities
Reflected in
Column A) (1)
Equity compensation plans approved by security holders:
Amended and Restated 2015 Stock Plan, as amended, or the 2015 Stock Plan1,233,624 $2.87 — 
2015 Equity Incentive Plan323,662 $12.23 — 
2018 Equity Incentive Plan4,329,961 $8.61 284,906 
Employee Stock Purchase Plan— N/A45,211 
Total5,887,247 $7.61 330,117 
(1)Represents the number of securities remaining available for future issuance under the 2015 Equity Incentive Plan, the 2015 Stock Plan, the 2018 Equity Incentive Plan and the Employee Stock Purchase Plan. The number of shares available for issuance under the 2018 Equity Incentive Plan is subject to an annual increase on the first day of each year equal to the lesser of (a) 1,500,000 shares or (b) 5% of the total number of shares of common stock outstanding on December 31 of the preceding calendar year or (c) a lesser number of shares of common stock approved by the board of directors prior to January 1 of a given year.
401(k) Plan
We have adopted the WTIA 401(k) Multiple Employer Plan, maintained by Washington Technology Industry Association, which is a defined contribution retirement plan, in which all Alpine employees providing at least 20 hours of service a week are eligible to participate. This plan provides our eligible employees with an opportunity to save for retirement on a tax advantaged basis, and participants are able to defer a portion of their eligible compensation. All participants’ interests in their deferrals are 100% vested when contributed. The 401(k) plan permits us to make matching contributions and profit sharing contributions to eligible participants. Pre-tax contributions are allocated to each participant’s individual account and are then invested in selected investment alternatives according to the participants’ directions. The 401(k) plan is intended to qualify under Sections 401(a) and 501(a) of the Internal Revenue Code. As a tax-qualified retirement plan, contributions to the 401(k) plan and earnings on those contributions are not taxable to the employees until distributed from the 401(k) plan and all contributions are deductible by us when made. The 401(k) plan also permits contributions to be made on a post-tax basis for those employees participating in the Roth 401(k) plan component.
Beginning in 2022, we initiated matching contributions equal to 50% of each employee’s salary deferral contribution of up to 6% of the employee’s compensation, subject to a maximum annual match of $3,000 per participant.
Compensation Committee Interlocks and Insider Participation
Currently, the members of our compensation committee are Drs. Topper, Thompson and Cui. None of the foregoing members of our compensation committee currently serves, or in the past year has served, as an officer or employee of Alpine Immune Sciences. None of our executive officers currently serves, or in the past year has served, as a member of the board of directors or compensation committee (or other board committee performing equivalent functions or, in the absence of any such committee, the entire board of directors) of any entity that has one or more executive officers serving on our board of directors or compensation committee.
27

Policy on Hedging and Pledging of Alpine Securities
We have an insider trading policy, which, among other things, prohibits our directors, officers and employees from engaging in “short sales” of our securities, and from June 2007purchasing or selling derivative securities, or entering into derivatives contracts, with respect to March 2009 he servedour securities. In addition, our directors and certain of our senior officers are prohibited from pledging our securities as collateral for a loan or entering into any margin arrangement with respect to our Vice Presidentsecurities.

28

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

The following table sets forth certain information with respect to the beneficial ownership of our common stock as of March 15, 2016 by:

    April 20, 2022 for:
each person or group of affiliated persons, who is known by Nivalis towe know beneficially ownowns more than five percent5% of our common stock;


each of our directors;
each of our named executive officers; and


each of our directors; and

all of our directors and executive officers and directors as a group.

The percentage of shares beneficially ownedbeneficial ownership shown in the table is based upon 15,462,03030,316,066 shares of common stock outstanding as of March 15, 2016.

April 20, 2022.

We have determined beneficial ownership in accordance with the rules of the SEC. These rules generally attribute beneficial ownership of securitiesExcept as indicated by the footnotes below, we believe, based on the information furnished to us, that the persons who possessand entities named in the table below have sole or shared voting power orand investment power with respect to those securities. all shares of common stock that they beneficially own, subject to applicable community property laws.
In addition,computing the rules includenumber of shares beneficially owned by a person and the percentage ownership of that person, we take into account shares of common stock issuable pursuant to the exercise of stock options, warrants and restricted stock units that may be exercised or warrants that are either immediately exercisable or exercisablescheduled to vest on or before May 14, 2016, which is 60 daysthe 60th day after March 15, 2016.April 20, 2022. These shares are deemed to be outstanding and beneficially owned by the person holding the applicablethose options, warrants or warrantsrestricted stock units for the purpose of computing the percentage ownership of that person, but they are not treated as outstanding for the purpose of computing the percentage ownership of any other person. Unless otherwise indicated, the persons or entities identified in this table have sole voting and investment power with respect to all shares shown as beneficially owned by them, subject to applicable community property laws.


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Except as otherwise noted below, the address for personseach person or entity listed in the table is c/o Nivalis Therapeutics,Alpine Immune Sciences, Inc., 3122 Sterling Circle,188 East Blaine Street, Suite 200, Boulder, CO 80301.

Seattle, Washington 98102.

 Common Stock
Beneficially Owned
Name of Beneficial OwnerSharesPercentage
5% Stockholders:
Decheng Capital China Life Sciences USD Fund III, L.P.(1)5,942,924 18.8 %
OrbiMed Private Investments VI, LP(2)4,226,843 13.9 %
Alpine Immunosciences, L.P.(3)2,675,421 8.8 %
Omega Fund VI, L.P.(4)2,415,050 7.9 %
Frazier Life Sciences VIII, L.P.(5)1,629,366 5.3 %
Entities affiliated with Avidity Partners Management LP (6)2,205,687 7.1 %
Entities affiliated with Biotechnology Value Fund L.P. (7)1,589,495 5.2 %
Lynx1 Capital Management LP (8)1,537,345 5.1 %
Directors and Executive Officers:
Mitchell H. Gold(9)3,830,068 12.2 %
Stanford Peng(10)641,755 2.1 %
Paul Rickey(11)291,049 *
Zelanna Goldberg(12)— — 
Jay Venkatesan(13)3,057,629 10.0 %
Peter Thompson(14)4,261,609 14.0 %
James N. Topper(15)3,165,774 10.4 %
Robert Conway(16)92,621 *
Christopher Peetz (17)36,666 *
Xiangmin Cui(18)5,970,040 18.9 %
Natasha Hernday(19)19,316 *
All current directors and executive officers as a group
(10 persons)(20)
18,691,106 54.7 %
Name and Address of Beneficial Owner
 Number of
Shares
Beneficially
Owned
 Percentage of
Shares
Beneficially
Owned
 

Directors, Named Executive Officers and Executive Officers:

       

Jon Congleton(1)

  179,494  1.1%

Robert Conway(2)

  18,925  * 

Howard Furst, M.D.(3)

  8,288  * 

Jonathan Leff(4)

  8,288  * 

Evan Loh, M.D.(5)

  13,554  * 

John Moore(6)

  13,554  * 

Paul Sekhri(7)

  638  * 

Janice Troha(8)

  93,200  * 

R. Michael Carruthers(9)

  65,166  * 

All executive officers and directors as a group (11 persons)(10)

  480,819  3.0 

5% Stockholders:

  
 
  
 
 

Deerfield Management(11)

  3,732,412  24.1 

Wellington Management Company, LLP(12)

  1,811,453  11.7 

Estate of Arnold H. Snider, III(13)

  1,557,228  10.1 

Biotechnology Value Fund(14)

  1,195,013  7.7 
29

Table of Contents
*
Represents beneficial ownership
(*)Less than one percent.
(1)According to a Schedule 13D/A filed on September 21, 2021 with the SEC, Decheng Capital Management III (Cayman), LLC (“Decheng Capital Management”) and Min Cui may be deemed to beneficially own 5,942,924 shares which are held by Decheng Capital China Life Sciences USD Fund III, L.P. (“Decheng”), including 1,234,636 shares issuable upon the exercise of less than one percent.

(1)
Includes options to purchase 173,070 shares of common stockwarrants that are currently exercisable or will become exercisable within 60 days of March 15, 2016.

(2)
Includes optionsApril 20, 2022. Decheng Capital Management is the general partner of Decheng. Dr. Cui is the sole manager of Decheng Capital Management and may be deemed to purchase 8,925have voting and investment power with respect to the shares held by Decheng and as a result may be deemed to have beneficial ownership of common stock thatsuch shares. The address for Decheng is 3000 Sand Hill Road, Building 2, Suite 110, Menlo Park, California 94025.
(2)According to a Schedule 13D/A filed on November 12, 2021 with the SEC, OrbiMed Advisors LLC and OrbiMed Capital GP VI LLC may be deemed to beneficially own 4,226,843 shares which are currently exercisable or will becomeheld by OrbiMed Private Investments VI, LP, including 145,251 shares issuable upon the exercise of warrants, which are exercisable within 60 days of March 15, 2016.

(3)
Includes optionsApril 20, 2022. OrbiMed Capital GP VI LLC (“GP VI”) is the general partner of OrbiMed Private Investments VI, LP. OrbiMed Advisors LLC (“OrbiMed Advisors”) is the managing member of GP VI. Carl L. Gordon, Sven H. Borho and Jonathan T. Silverstein share voting and investment power over the shares held by OrbiMed Private Investments VI, LP and as a result may be deemed to purchase 8,288have beneficial ownership of such shares. Dr. Thompson, an employee of OrbiMed Advisors, may be deemed to have beneficial ownership of such shares. Each of GP VI, OrbiMed Advisors, Carl L. Gordon, Sven H. Borho, Jonathan T. Silverstein and Dr. Thompson disclaims beneficial ownership of the shares held by OrbiMed Private Investments VI, LP, except to the extent of common stock thatits or his pecuniary interest therein, if any. The address for OrbiMed Private Investments VI, LP is 601 Lexington Avenue, 54th Floor, New York, New York 10022.
(3)According to a Schedule 13D/A filed on September 21, 2021 with the SEC, Alpine BioVentures, GP, LLC, Mitchell H. Gold and Jay Venkatesan may be deemed to beneficially own 2,675,421 shares which are currently exercisable or will becomeheld by Alpine Immunosciences, L.P., including 74,441 shares issuable upon the exercise of warrants, which are exercisable within 60 days of March 15, 2016.

(4)
Includes optionsApril 20, 2022. Alpine BioVentures GP, LLC is the general partner of Alpine Immunosciences, L.P. Dr. Gold and Dr. Venkatesan are the Managing Partners of Alpine BioVentures GP, LLC. Dr. Gold and Dr. Venkatesan are also limited partners of Alpine Immunosciences, L.P. By virtue of such relationships, Dr. Gold and Dr. Venkatesan may be deemed to purchase 8,288have voting and investment power with respect to the shares held by Alpine Immunosciences, L.P. and as a result may be deemed to have beneficial ownership of such shares. Each of Dr. Gold and Dr. Venkatesan disclaims beneficial ownership of the shares held by Alpine Immunosciences, L.P., except to the extent of his pecuniary interest therein, if any. The address for Alpine Immunosciences, L.P. is 117 E Louisa Street #256, Seattle Washington 98102.
(4)According to a Schedule 13G/A filed on February 14, 2022 with the SEC, consists of 2,415,050 shares of common stock that are currently exercisable or will become exercisable within 60 days of March 15, 2016.

(5)
Includes optionsand warrants to purchase 11,481 sharesup to an aggregate of common stock that are currently exercisable or will become exercisable within 60 days of March 15, 2016.

(6)
Includes options to purchase 11,481 shares of common stock that are currently exercisable or will become exercisable within 60 days of March 15, 2016.

(7)
Includes options to purchase 638 shares of common stock that are currently exercisable or will become exercisable within 60 days of March 15, 2016.

(8)
Includes options to purchase 59,368 shares of common stock that are currently exercisable or will become exercisable within 60 days of March 15, 2016.

(9)
Includes options to purchase 64,901 shares of common stock that are currently exercisable or will become exercisable within 60 days of March 15, 2016.

(10)
Includes options to purchase 424,390 shares of common stock that are currently exercisable or will become exercisable within 60 days of March 15, 2016.

Table of Contents

(11)
Consists of 1,124,740385,470 shares of common stock held directly by Deerfield Special SituationsOmega Fund VI, L.P., 402,062 shares held by Deerfield Private Design, L.P., 647,152 shares held by Deerfield Private Design International, L.P., 726,242 shares held by Deerfield Private Design (“Omega Fund”). Omega Fund II, L.P., and 832,216 shares held by Deerfield Private Design International II, L.P. Deerfield Mgmt, L.P. isVI GP Manager, Ltd. (“Omega Ltd.”) serves as the general partner of Deerfield Special SituationsOmega Fund L.P., Deerfield Private Design, L.P., Deerfield Private Design International, L.P., Deerfield Private Design II, L.P., and Deerfield Private Design International II,VI GP, L.P. (collectively, the "Funds"("Omega GP"), and Deerfield Management Company, L.P. is the investment manager of the Funds. Mr. James E. Flynn is the sole member ofwhich serves as the general partner of Omega Fund; and each of Deerfield Mgmt, L.P.Omega Ltd and Deerfield Management Company, L.P., collectively referredOmega GP may be deemed to as Deerfield Management. Eachown beneficially the shares held by Omega Fund. Claudio Nessi, Otello Stampacchia and Anne-Mari Paster are the directors of the Deerfield Management entitiesOmega Ltd and Mr. James E. Flynn may be deemed to beneficially own the shares held directly by Omega Fund. The address for Omega Fund is 888 Boylston Street, Suite 1111, Boston, MA 02199.
(5)According to a Schedule 13D/A filed on February 15, 2022 with the SEC, Frazier Life Sciences VIII, L.P. is the record owner of 1,629,366 shares, including 145,251 shares issuable upon the exercise of warrants that are exercisable within 60 days of April 20, 2022. FHM Life Sciences VIII, LP is the general partner of Frazier Life Sciences VIII, L.P. and FHM Life Sciences VIII, LLC is the general partner of FHM Life Sciences VIII, LP. Dr. Topper and Patrick J. Heron are the sole members of FHM Life Sciences VIII, LLC and therefore share voting and investment power over the shares held by Frazier Life Sciences VIII, L.P. Dr. Topper and Mr. Heron disclaim beneficial ownership of the shares held by Frazier Life Sciences VIII, L.P., except to the extent of their pecuniary interests in such shares, if any. The foregoing shares excludes 1,200,000 shares subject to warrants held by Frazier Life Sciences VIII, L.P. that are not exercisable due to the beneficial ownership limitation set forth therein, which provides that such warrants may not be exercised if, after such exercise, the reporting person would beneficially hold more than 9.99% of our company's common stock. The address for Frazier Life Sciences VIII, L.P. is 601 Union Street, Suite 3200, Seattle, Washington 98101.
(6)According to a Schedule 13G/A filed with the SEC on February 14, 2022, Avidity Partners Management LP (“APM LP”), Avidity Partners Management (GP) LLC (“APM GP”), Avidity Capital Partners Fund (GP) LP (“ACPF”), Avidity Capital Partners (GP) LLC (“ACP”) share voting and dispositive power with respect to 2,205,687 shares, of which 1,773,592 shares are further subject to shared voting and dispositive power with Avidity Master Fund LP (“AMF” and, together with APM LP, APM GP, ACPF and ACP, the “Avidity Funds”). According to the Company’s records, these shares also include 860,687 shares issuable upon exercise of outstanding warrants. David Witzke and Michael Gregory directly or indirectly control the Avidity Funds and as a result may be deemed to have voting and dispositive power over the securities held directly by the Avidity Funds. The address of Avidity Partners Management LP is 2828 N Harwood Street, Suite 1220, Dallas, TX 75201.
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(7)According to a Schedule 13G/A filed on February 14, 2022 with the Funds, the Deerfield Management entities and Mr. James E. Flynn is c/o Deerfield Management Company, L.P., 780 Third Avenue, Floor 37, New York, NY 10017.

(12)
Consists of shares reported as being beneficially owned by Wellington Management Group LLP, Wellington Group Holdings LLP, Wellington Investment Advisors Holdings LLP and Wellington Management Company LLP. The shares are owned of record by clients of one or more investment advisors (the "Wellington Investment Advisors") that are directly or indirectly owned by Wellington Management Group LLP. Those clients have the right to receive, or the power to direct the receipt of, dividends from, or the proceeds from the sale of, such securities. No such client is known to have such right or power with respect to more than 5% of the shares of Nivalis' common stock. Wellington Investment Advisors Holdings LLP controls directly or indirectly (through Wellington Management Global Holdings, Ltd.) the Wellington Investment Advisors. Wellington Investment Advisors Holdings LLP is owned by Wellington Group Holdings LLP; Wellington Group Holdings LLP is owned by Wellington Management Group LLP. The business address of Wellington Management named in the table is c/o Wellington Management Company LLP, 280 Congress Street, Boston, Massachusetts 02210.

(13)
The address for the Estate of Arnold H. Snider, III is c/o Ropes & Gray, Attn: Steve Wilcox, 800 Boylston Street, Boston, Massachusetts 02199.

(14)
Consists of 512,140 shares beneficially owned bySEC, Biotechnology Value Fund, L.P. ("BVF"), 298,247 is the beneficial owner of 847,157 shares, beneficially owned by Biotechnology Value Fund II, L.P. ("BVF2"BVF II"), and 105,335 is the beneficial owner of 618,715 shares, owned byand Biotechnology Value Trading Fund OS LP ("Trading Fund OS"). is the beneficial owner of 95,086 shares, representing 1,560,958 shares in the aggregate, which excludes 112,609 warrants held by BVF, 92,035 warrants held by BVF II, and 13,231 warrants held by Trading Fund OS that are not exercisable due to the beneficial ownership limitation, which provides that the warrants may not be exercised if, after such exercise the reporting persons would beneficially own more than 4.99% of the shares outstanding. BVF I GP LLC ("BVF GP"), as the general partner of BVF, may be deemed to beneficially own the shares beneficially owned by BVF. BVF II GP LLC ("BVF2 GP"), as the general partner of BVF2, may be deemed to beneficially own the shares beneficially owned by BVF2. BVF Partners OS Ltd. ("Partners OS") is, as the general partner of Trading Fund OS, and may be deemed to beneficially own the 105,335 shares beneficially owned by Trading Fund OS. BVF Partners L.P.GP Holdings LLC ("Partners"BVF GPH") is, as the general partnersole member of BVF GP and BVF2,BVF 2 GP, may be deemed to beneficially own the shares beneficially owned in the aggregate by BVF and BVF2. BVF Partners L.P.("Partners"), as the investment manager of BVF , BVF2 and Trading Fund OS, and the sole member of Partners OS;OS, may be deemed to beneficially own the shares beneficially owned in the aggregate by BVF, BVF2 and Trading Fund OS, in addition to 28,537 shares held in a certain Partners managed account (the "Partners Managed Account"). BVF Inc., as the general partner of Partners, may be deemed to beneficially own the shares owned by Partners. Mark N. Lampert, as a director and officer of BVF Inc., may be deemed to beneficially own the shares beneficially owned by BVF BVF2 Trading Fund OS and certain Partners management accounts, including 279,291 shares held in such management accounts.Inc. BVF Inc. isGP disclaims beneficial ownership of the general partner of Partners and may be deemed to beneficially own the 1,195,013 shares beneficially owned by Partners. Mark N. Lampert is a director and officerBVF. BVF2 GP disclaims beneficial ownership of BVF Inc. and may be deemed to beneficially own the 1,195,013 shares beneficially owned by BVF Inc.BVF2. Partners OS disclaims beneficial ownership of the shares beneficially owned by Trading Fund OS. BVF GPH disclaims beneficial ownership of the shares beneficially owned by BVF and BVF2. Each of Partners, BVF Inc. and Mr. Lampert disclaimdisclaims beneficial ownership of the shares beneficially owned by BVF, BVF2 and Trading Fund OS andas well as the shares held in the Partners management accounts.Managed Account. The business address offor BVF, BVF GP, BVF2, BVF2 GP, BVF GPH, Partners, BVF Inc. and Mr. Lampert is 1 Sansome Street, 30th44 Montgomery St., 40th Floor, San Francisco, CA, 94104; the business94104. The address offor Trading Fund OS and Partners OS is PO Box 309 Ugland House, Grand Cayman, KY1-1104, Cayman Islands.

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(8)
SECTION 16(A) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE

        Section 16(a) of the Exchange Act requires our directors and executive officers, and persons whoAccording to a Schedule 13G filed on April 22, 2022, Lynx1 Master Fund LP ("Lynx1 Fund") beneficially own more than 10 percent of a registered classowns 1,537,345 shares of our equity securities,common stock. Lynx1 Capital Management LP ("Lynx1 Management") is the investment manager to file withLynx1 Fund, and Westin Nichols is the SEC initial reportssole member of ownershipLynx1 Capital Management GP LLC, the general partner of Lynx1 Management. Mr. Nichols shares voting and reports of changes ininvestment power over the shares held by Lynx1 Fund and as a result may be deemed to have beneficial ownership of common stock and other equity securities of the company. Officers, directors and greater than 10 percent beneficial owners are required by SEC regulations to furnish us with copies of all Section 16(a) forms they file.

        To our knowledge, based solely on a review of the copies of such reports furnished to us and written representations that no other reports were required, during the fiscal year ended December 31, 2015, all Section 16(a) filing requirements applicable to its officers, directors and greater than 10 percent beneficial owners were complied with.


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EXECUTIVE COMPENSATION

Summary Compensation Table

shares. The following table showsaddress for the fiscal years ended December 31, 2015 and 2014, compensation awarded or paid to, or earned by, our principal executive officer and our two other most highly compensated executive officers at December 31, 2015, who we refer to collectively as the "named executive officers".

Name
 Year Salary
($)(1)
 Bonus
($)(2)
 Option
Awards
($)(3)
 Nonequity
Incentive Plan
Compensation
($)(4)
 All Other
Compensation
($)(5)
 Total ($) 

Jon Congleton(6)

  2015 $375,000   $2,792,832 $206,250 $42,750 $3,416,832 

Chief Executive Officer and President

  2014             

Janice Troha

  
2015
  
363,825
  
  
1,164,776
  
175,091
  
7,950
  
1,711,642
 

Executive Vice President and Chief Operating Officer

  2014  363,825  50,000      7,800  421,625 

R. Michael Carruthers(7)

  
2015
  
317,019
  
70,000
  
1,188,243
  
122,198
  
7,950
  
1,705,410
 

Chief Financial Officer

  2014             

foregoing persons is c/o Lynx1 Capital Management LP, 2 Ridge Top Drive, Humacao, Puerto Rico 00791.
(1)
The amounts reported under "Salary" in the above table represent the actual amounts paid during the calendar year. Because actual pay dates do not always coincide with the first and last days(9)Consists of the year, these amounts may differ from the base salary amounts authorized by the Board and described in the narrative that follows.

(2)
Represents a discretionary cash retention bonus paid in 2014 to Ms. Troha and a one-time signing bonus paid to Mr. Carruthers in 2015.

(3)
The amounts reported reflect the grant date fair value of these awards as determined in accordance with Financial Accounting Standards Board Accounting Standards Codification Topic 718, Compensation—Stock Compensation, excluding the effects of estimated forfeitures. The value of stock option awards granted prior to our initial public offering was estimated using the Black-Scholes option-pricing model. The valuation assumptions used in the valuation of option grants may be found in Note 8 to our consolidated financial statements included in our annual report on Form 10-K for the year ended December 31, 2015 and filed with the SEC on March 8, 2016.

(4)
Represents cash bonuses earned under our 2015 annual performance bonus plan and paid in January 2016. See the subsection entitled "—Performance Bonus Plan" below for a description of the 2015 performance bonus plan. The bonus paid to Mr. Carruthers was prorated for the number of months he was an employee during 2015.

(5)
The amounts in this column represent company matching contributions under our 401(k) plan of $7,950 for each of the named executive officers and reimbursement of $34,800 to Mr. Congleton for commuting expenses between our offices in Boulder, Colorado and his primary residence.

(6)
Mr. Congleton was appointed Chief Executive Officer and President effective January 1, 2015. Dr. Charles Scoggin served as our Chief Executive Officer until July 11, 2014. After Dr. Scoggin's departure, the Chairman of our Board of Directors, Howard Furst, M.D., a non-employee director, assisted in overseeing certain duties of the Chief Executive Officer while the Board of Directors conducted a search for a new Chief Executive Officer. Dr. Furst was not compensated for these additional responsibilities.

(7)
Mr. Carruthers was appointed our Chief Financial Officer effective February 4, 2015.

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2015 Outstanding Equity Awards at Fiscal Year-End

        The following table sets forth information with respect to outstanding stock option awards and restricted stock for each of the named executive officers as of December 31, 2015.

 
 Option Awards(1) 
Name
 Number of
Securities
Underlying
Unexercised
Options (#)
Exercisable
 Number of
Securities
Underlying
Unexercised
Options (#)
Unexercisable
 Option
Exercise
Price ($)
 Option
Grant
Date(2)
 Option
Expiration
Date
 

Jon Congleton

     519,210 $4.57  2/10/15  2/10/25 

     121,100  15.28  9/11/15  9/11/25 

Janice Troha

  
6,850
  
1,803
  
3.36
  
10/29/12
  
10/29/22
 

     165,749  4.57  2/10/15  2/10/25 

     65,400  15.28  9/11/15  9/11/25 

R. Michael Carruthers

     
207,684
  
4.57
  
2/10/15
  
2/10/25
 

     55,400  15.28  9/11/15  9/11/25 

(1)
All stock option awards granted prior to June 2015 were granted under our 2012 Plan and all other options were granted under our 2015 Plan. The awards provide for a four-year vesting period, with 25% of the options vesting on the first anniversary of the grant date, and 1/48th of the options vesting monthly thereafter so that 100% of the options are vested on the fourth anniversary of the grant date. See the subsection entitled "—Stock Incentive Plans" below for a description of the 2012 Plan and the 2015 Plan.

(2)
The date from which vesting is calculated differs from the option grant date for certain of the named executive officers. The vesting for options granted to Mr. Congleton on February 10, 2015 is measured from January 1, 2015; the vesting of options granted to Ms. Troha on October 29, 2012 is measured from October 15, 2012; and the vesting of options granted to Mr. Carruthers on February 10, 2015 is measured from February 4, 2015.

Narrative Disclosure to Summary Compensation Table

Elements of Compensation

        The compensation for our named executive officers consists of base salary, equity compensation in the form of stock options, incentive cash compensation under our annual performance bonus plan and severance and change in control benefits. The remaining elements of our executive compensation program include a 401(k) plan, medical plans, life and disability insurance, are available to all of our employees and, like our broader employee compensation programs, are intended to make our overall compensation program competitive with those of our peer companies. Our 401(k) plan provides a company safe harbor contribution of 3% of compensation, up to maximum limits under U.S. federal tax laws. Our named executive officers participate in our 401(k) on the same basis as our employees.

        Because Mr. Congleton does not reside near our headquarters location, we have agreed to reimburse him for the costs he incurs in traveling to and from our headquarters from time to time. We provide no other perquisites to our named executive officers.

        Beginning in fiscal 2015, we adopted a performance-based non-equity incentive plan that we intend to continue to provide to our executive officers and employees generally. Under this plan, each


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executive officer and employee is eligible for an annual cash incentive payment up to a specified target percentage of the employee's annual base salary. These annual cash bonuses are based upon the level of achievement of pre-specified corporate and individual performance objectives. Each year, and based on the recommendation of the Compensation Committee, the Board approves the performance goals and assigns various weights to the goals. These goals are expected to vary from year to year depending on our overall strategic objectives, but relate generally to accomplishment of established corporate goals, the development and progression of our existing product candidates, achievement of clinical and regulatory milestones, operational goals and financial objectives such as raising and maintaining capital. The Board sets the goals in a manner that, upon achievement of the target levels, are likely to result in cash bonus payments that the Board believes to be approximately the level paid to high-performing executives of comparable companies in the biopharmaceutical industry in our peer group.

        At the end of each year, the Compensation Committee makes a determination as to the achievement of each of the specified goals for the year and based on the applicable weighting determines the overall achievement under the plan, with 100% representing achievement at the target level. The percentage of achievement is applied to the target bonus percentages approved by the Compensation Committee on the recommendation of our Chief Executive Officer (other than the target bonus percentage for the Chief Executive Officer which is set solely by the Compensation Committee) to determine the amount of cash bonuses to be paid to the executive officers and other employees. To recognize extraordinary individual performance, the Compensation Committee may also approve individual multipliers to the target bonus percentage for a named executive officer or other employee to increase the bonus otherwise payable at an employee's target bonus percentage in order to reward individual performance. The Compensation Committee has discretion in modifying the terms of the plan and in determining whether or not a cash bonus is paid for any year.

        For 2015, based upon recommendations of the Compensation Committee, the Board determined that the target annual bonus for Mr. Congleton would equal 50% of his annual base salary and the target annual bonuses for Mr. Carruthers and Ms. Troha would equal 35% of their respective annual base salaries. The Board also established the corporate goals based on key performance indicators, or KPI's, for 2015, and assigned points and relative weighting to these goals, all of which were communicated to the named executive officers following adoption. The corporate goals for the year included:

        For goals relating to our initial public offering, our clinical development plan for N91115 and program partnering or acquisition, the Board approved threshold, target and stretch levels of achievement. Threshold achievement results in a 50% payout under the plan, target achievement results in 100% achievement under the plan and stretch achievement results in 150% achievement under the plan. In January 2016, the Compensation Committee approved overall achievement of the 2015 goals at the 110% level, reflecting achievement above the target levels for the goals relating to execution of the company's initial public offering and development plan, below target for the goal relating to partnering assets, and at target for budget execution and internal operational goals. As a result of this level of achievement, the Compensation Committee approved bonuses of $206,250 for Mr. Congleton, $122,198 for Mr. Carruthers and $175,091 for Ms. Troha for the fiscal year 2015. In calculating the bonus for Ms. Troha, the Compensation Committee approved an individual multiplier of 125% to her 35% target bonus percentage amount in recognition of extraordinary individual performance during the year.


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        For 2016, based upon the recommendation of the Compensation Committee, the Board determined that the target annual bonus for Mr. Congleton would equal 50% of his annual base salary and the target annual bonuses for Mr. Carruthers and Ms. Troha would equal 35% of their respective annual base salaries. Also on the recommendation of the Compensation Committee, the Board approved the threshold, target and stretch performance goals relating to development milestones for the company's two Phase 2 clinical trials, development support goals for N91115, budget, finance and compliance goals, partnering or licensing goals, and corporate culture objectives.

        Discretionary cash bonuses are not a typical component of executive officer compensation, but the Compensation Committee has approved such bonuses in the past and may do so in the future in special circumstances such as to ensure retention or to obtain necessary talent. In June 2014, we entered into retention bonus agreements with Ms. Troha and certain other executive officers providing for a cash payment in the amount of $50,000 per person payable in two equal installments subject to continued employment through the applicable payment date and satisfactory performance. The retention bonuses were paid during fiscal 2014. In connection with the commencement of Mr. Carruthers' employment as our Chief Executive Officer, the Compensation Committee approved a one-time signing bonus of $70,000 which was paid in 2015.

        We provide equity-based incentive compensation to our named executive officers to promote a closer identification of their interests with those of the company and its stockholders and to further stimulate their efforts to enhance the growth and value of the company.

        In 2012, we adopted the N30 Pharmaceuticals, Inc. 2012 Stock Incentive Plan, or the 2012 Plan. Upon consummation of our initial public offering in June 2015, we adopted the Nivalis Therapeutics, Inc. 2015 Equity Incentive Plan, or the 2015 Plan. Following effectiveness of the 2015 Plan, no further grants will be made under the 2012 Plan, although all outstanding grants under the 2012 Plan continue to be governed by the terms of the 2012 Plan. Any(i) 109,387 shares subject to outstanding options granted under the 2012 Plan that would for any reason subsequently return to the share reserve of the 2012 Plan under its terms, will not return to the share reserve of the 2012 Plan.

        The 2015 Plan, like the 2012 Plan, is intended to promote our long-term success and increase stockholder value by attracting, motivating and retaining non-employee directors, officers, employees and consultants. To achieve this purpose, the 2015 Plan allows the flexibility to grant or award stock options, stock appreciation rights, restricted stock awards, restricted stock units, performance-based awards, cash-based awards and other stock-based awards to eligible individuals, thereby strengthening their commitment to our success and aligning their interests with those of our stockholders. The Compensation Committee administers the 2015 Plan and has the discretion to grant awards and set the terms for awards under the 2015 Plan. The Compensation Committee has delegated to its Chairman, John Moore, the authority to approve the grant of awards to employees who are not subject to Section 16 of the Exchange Act.

        Although we did not grant any stock options or other equity awards to the named executive officers during 2014, we historically and intend to continue to grant equity awards to our named executive officers in conjunction with their initial hire and annually during the third quarter of each year following a performance review. Certain of the named executive officers hold stock options granted under the 2012 Plan or restricted stock that relates to historical equity arrangements as well as


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stock options granted under the 2015 Plan. The Compensation Committee may also approve other types of awards under the 2015 Plan, including restricted stock units.

        Except as otherwise provided in an award agreement, if a participant's service with Nivalis is terminated for any reason (not in connection with a sale of the company, as such term is defined in the 2012 Plan and the 2015 Plan), any unvested portion of an award is automatically forfeited. In the event of a sale of the company, the Compensation Committee may provide that any outstanding award that is not then exercisable shall become exercisable, that restrictions applicable to any outstanding awards shall lapse and that outstanding awards be adjusted, substitute, converted, settled and/or terminated as the committee, in its discretion, deems appropriate.

        In February and September 2015, the Compensation Committee granted stock options to certain employees, including each of the named executive officers. The February 2015 options were granted under and in accordance with the terms and conditions of the 2012 Plan and the September 2015 options were granted under and in accordance with the terms and conditions of the 2015 Plan. Each of the options will vest as to 25% of the underlying shares of common stock on the one year anniversary of the date of grant and will vest as to the remaining underlying shares monthly over the following 36 months, provided in each case that the applicable employee remains employed by the company through the applicable vesting date. The exercise price for each option granted after our initial public offering in June 2015 is equal to the closing price of our common stock on the dateheld directly by Dr. Gold, (ii) 1,045,260 shares of grant as reported by the NASDAQ Stock Market on the grant date;our common stock issuable upon the exercise price for each option granted prior toof options within 60 days of April 20, 2022, (iii) 2,600,980 shares of our initial public offering is equal tocommon stock held directly by Alpine Immunosciences, L.P and (iv) 74,441 shares of our common stock issuable upon the fair market valueexercise of warrants held by Alpine Immunosciences, L.P. which are exercisable within 60 days of April 20, 2022. Please see footnote 3 regarding Dr. Gold’s voting and investment power over the shares held by Alpine Immunosciences, L.P.

(10)Consists of (i) 24,371 shares of our common stock held directly by Dr. Peng and (ii) 617,387 shares of our common stock issuable upon the exercise of options within 60 days of April 20, 2022.
(11)Consists of (i) 7,014 shares of our common stock held directly by Mr. Rickey and (ii) 284,035 shares of our common stock issuable upon the exercise of options within 60 days of April 20, 2022.
(12)The information in the table above reflects Dr. Goldberg's holdings of our common stock as determined in good faith byof October 8, 2021, the date Dr. Goldberg separated from our Board with the assistanceemploy.
(13)Consists of a valuation prepared by an independent third party valuation firm. The vesting of stock options granted to our named executive officers will accelerate upon certain terminations of employment and upon a change in control of our company as described below under the subheadings "—Employment Agreements" and "—Potential Payments upon Termination or Change in Control".

    Employee Stock Purchase Plan

        We adopted the Nivalis Therapeutics, Inc. Employee Stock Purchase Plan, which we refer to as our ESPP, effective upon completion of our initial public offering in June 2015. The ESPP is designed to allow our eligible employees, including our named executive officers, to purchase(i) 218,063 shares of our common stock at a discount at semi-annual intervals, with their accumulated payroll deductions. The ESPP is intended to qualify under Section 423 of the Internal Revenue Code. Subject to the terms and conditions of the ESPP, our Compensation Committee administers the ESPP, and has full and exclusive authority to interpret the terms of the ESPP and determine eligibility to participate. Each of our named executive officers participated in the ESPP during 2015.

Employment Agreements

        We have entered into written employment agreements with each of our named executive officers. These agreements were negotiated on an arms-length basis and establish the key elements of compensation for each executive.

    Chief Executive Officer

        We entered into an employment agreement with Mr. Congleton effective January 1, 2015. The initial base salary set forth in the agreement is $375,000. The agreement is for an initial term of one year, and renews annually thereafter for additional one-year terms unless at least 30 days prior to the end of the current term either we or Mr. Congleton provides notice of non-renewal.

        The agreement provides that Mr. Congleton is eligible to participate in the employee benefit plans, programs and policies maintainedheld directly by us from time to time. In addition, Mr. Congleton is eligible for


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performance bonuses in cash and/or equity on an annual or more frequent basis, as determined at the discretion of our Board of Directors, with a target annual performance bonus equal to 50% of his then current base salary.

        The agreement also provides for severance benefits in the event Mr. Congleton's employment is terminated by us without cause, or on account of his disability, subject to his execution of an acceptable release of claims. Severance benefits include (1) monthly severance payments equal to his then-current monthly rate of salary for a period of 12 months, (2) reimbursement of COBRA premiums for a maximum of 12 months and (3) accelerated vesting of those stock options scheduled to vest in the 12-month period following the termination date of his employment.

        The agreement also provides that all outstanding, unvested options held by Mr. Congleton will vest in full upon death and that if there is a termination of his employment other than for cause within 12 months of a change in control, all unvested options he holds will become vested.

        The agreement also contains customary confidentiality, non-compete and non-solicitation provisions.

    Chief Financial Officer

        The effective date of Mr. Carruthers' agreement was January 21, 2015. The initial base salary set forth in the agreement is $350,000. The agreement is for an initial term of one year, and renews annually thereafter for additional one-year terms unless at least 30 days prior to the end of the current term either we or Mr. Carruthers provides notice of non-renewal.

        The agreement provides that Mr. Carruthers is eligible to participate in the employee benefit plans, programs and policies maintained by us from time to time. In addition, Mr. Carruthers is eligible for performance bonuses in cash and/or equity on an annual or more frequent basis, as determined at the discretion of our Board of Directors, with a target annual performance bonus equal to 30% of his then current base salary.

        The agreement also provides for severance benefits in the event Mr. Carruthers' employment is terminated by us without cause, or on account of his disability, subject to his execution of an acceptable release of claims. Severance benefits include (1) monthly severance payments equal to his then-current monthly rate of salary for a period of 12 months, (2) reimbursement of COBRA premiums for a maximum of 12 months and (3) accelerated vesting of those stock options scheduled to vest in the 12-month period following the termination date of his employment.

        The agreement also provides that all outstanding, unvested options held by Mr. Carruthers will vest in full upon death and that, upon a change in control, 50% of any unvested options from his initial option grant will become vested and, if there is a termination of his employment other than for cause within 12 months of a change in control, all remaining outstanding, unvested options will become vested.

        The agreement also contains customary confidentiality, non-compete and non-solicitation provisions.

    Chief Operating Officer

        The effective date of Ms. Troha's agreement was November 1, 2012, and the agreement was most recently amended in March 2015. The initial base salary set forth in the agreement is $346,500. The agreement is for an initial term of two years, and will renew after the initial term, and annually thereafter, for an additional one-year term unless at least 30 days prior to the end of the current term either we or Ms. Troha provides notice of non-renewal.


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        The agreement provides that Ms. Troha is eligible to participate in the employee benefit plans, programs and policies maintained by us from time to time. In addition, Ms. Troha is eligible for performance bonuses in cash and/or equity on an annual or more frequent basis, as determined at the discretion of our Board of Directors.

        The agreement also provides for severance benefits in the event Ms. Troha's employment is terminated by us without cause, or on account of disability. Severance benefits include (1) monthly severance payments equal to her then-current monthly rate of salary for a period equal to the greater of 12 months, or the remainder of the term of her employment agreement, (2) reimbursement of COBRA premiums for a maximum of 12 months and (3) accelerated vesting of those stock options scheduled to vest during the 12-month period following the termination date of her employment.

        The agreement also provides that any outstanding, unvested options held by Ms. Troha will vest in full upon death. Upon a change in control, all of Ms. Troha's outstanding stock options granted prior to February 10, 2015 will vest and if there is a termination other than for cause within 12 months of a change in control, all unvested options granted after February 10, 2015 that she holds will become vested.

        The agreement also contains customary confidentiality, non-compete and non-solicitation provisions.

Potential Payments upon Termination or Change in Control

    Severance Benefits under the Employment Agreements

        We have agreed to pay the following severance benefits to our named executive officers in the event of an executive's termination by us without cause or in the case of an executive's disability:

    monthly severance payments equal to his or her then-current monthly rate of salary for a period of 12 months;

    reimbursement of COBRA premiums for a maximum of 12 months; and

    accelerated vesting of those stock options scheduled to vest during the 12-month period following his or her termination date.

        Our obligation to provide these severance payments is conditioned upon his or her execution of a separation and release agreement and compliance with customary restrictive covenants and post-termination obligations. In the event we terminate an executive's employment for cause, the executive quits, or the term of the agreement expires, the executive will have no right to receive any severance benefits, except for any accrued and unpaid compensation and vested benefits.

        In the event an executive's employment is terminated as a result of death, the executive will have no right to receive any severance benefits, except for any accrued and unpaid compensation and vested benefits, provided that all stock options issued to the executive will become fully vested and exercisable.

    Acceleration of Vesting on a Change in Control

        Our employment agreements with the named executive officers provide for the acceleration of vesting of outstanding options upon a change in control of our company as described above under "—Employment Agreements".

Compensation Risks

        We believe our approach to goal setting, setting of targets with payouts at multiple levels of performance, and evaluation of performance results assist in mitigating excessive risk-taking that could harm the value or reward poor judgment by our executives. Several features of our programs reflect


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sound risk management practices. We believe we have allocated compensation among base salary and short and long-term compensation target opportunities in such a way as to not encourage excessive risk-taking. We also believe that the multi-year vesting of our equity awards properly account for the time horizon of risk. Furthermore, the Compensation Committee assesses and monitors whether any of our compensation policies and programs have the potential to encourage excessive risk-taking.

Incentive-Based Compensation Recoupment Policy

        Our Board has adopted an incentive-based compensation recoupment policy that applies if we are required to restate our financial statements due to a material noncompliance with any financial reporting requirement under the federal securities laws (other than a change in accounting policy or applicable law). The policy allows the company in its discretion to recover incentive-based compensation received by executive officers during the three-year period prior to the date such an accounting restatement is announced where the executive officer's fraud or intentional misconduct gave rise to or contributed to the restatement. The amount to be recovered will be based on the excess, if any, of the incentive-based compensation paid to the executive based on the erroneous data over the incentive-based compensation that would have been paid to the executive if the financial accounting statements had been as presented in the restatement.

Director Compensation

        Effective upon consummation of our initial public offering in June 2015, we adopted director compensation guidelines that outline the compensation paid to our non-employee directors for services on our Board, which consists of annual retainer fees and equity compensation in the form of stock option grants. Mr. Congleton receives no separate compensation for his service on the Board. The annual retainer for non-employee directors is $35,000, with an additional annual retainer of $25,000 for the Chairman. Annual retainers for Board committee membership is as follows:

Audit Committee Chairperson

 $15,000 

Audit Committee member

 $7,500 

Compensation Committee Chairperson

 $10,000 

Compensation Committee member

 $5,000 

Nominating and Corporate Governance Committee Chairperson

 $7,500 

Nominating and Corporate Governance Committee member

 $3,750 

        All retainer fees are paid on a quarterly basis in arrears. Non-employee directors also receive an initial stock option grant upon appointment or election to the Board to purchase 11,475Dr. Venkatesan, (ii) 37,266 shares of our common stock and receive annual stock option grantsheld in Septembertrust for the benefit of each year to purchase 7,650Dr. Venkatesan’s children, (iii) 126,879 shares of our common stock. Allstock issuable upon the exercise of options are granted under the 2015 Plan and have an exercise price equal to the closing pricewithin 60 days of April 20, 2022, (iv) 2,600,980 shares of our common stock as reportedheld directly by the NASDAQ Stock Market on the date of grant. The initial stock option grants vest in 36 equal monthly installments over a three-year period from the grant date,Alpine Immunosciences, L.P., and the annual stock option grants vest in 12 equal monthly installments over a 12-month period from the grant date. On a change in control(v) 74,441 shares of our company, all outstanding, unvested optionscommon stock issuable upon the exercise of warrants held by non-employee directors vest in full.

Alpine Immunosciences, L.P. which are exercisable within 60 days of April 20, 2022. Please see footnote 3 regarding Dr. Venkatesan’s voting and investment power over the shares held by Alpine Immunosciences, L.P.

(14)Consists of (i) 34,766 shares of our common stock issuable upon the exercise of options within 60 days of April 20, 2022, (ii) 4,081,592 shares of our common stock held directly by OrbiMed Private Investments VI, LP and (iii) 145,251 shares of our common stock issuable upon the exercise of warrants held by OrbiMed Private Investments VI, LP which are exercisable within 60 days of April 20, 2022. Please see footnote 2 regarding Dr. Thompson’s voting and investment power over the shares held by OrbiMed Private Investments VI, LP.

(15)Consists of (i) 34,766 shares of our common stock issuable upon the exercise of options within 60 days of April 20, 2022, (ii) 1,484,115 shares of our common stock held directly by Frazier Life Sciences VIII, L.P., (iii) 145,251 shares of our common stock issuable upon the exercise of warrants held by Frazier Life Sciences VIII, L.P. which are exercisable within 60 days of April 20, 2022, and (iv) 1,501,642 shares of our common stock held directly by Frazier Life Sciences Public Fund L.P. Please see footnote 5 regarding Dr. Topper’s voting and investment power over the
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        The following table shows for

shares held by Frazier Life Sciences VIII, L.P. FHMLSP, L.P. is the fiscal year ended December 31, 2015 certain information with respectgeneral partner of Frazier Life Sciences Public Fund L.P., and FHMLSP, L.L.C. is the general partner of FHMLSP, L.P. Dr. Topper, Patrick J. Heron, Albert Cha and James Brush are the individual members of FHMLSP, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences Public Fund L.P. Dr. Topper and Messrs. Heron, Cha and Brush disclaim beneficial ownership of the shares held by Frazier Sciences Public Fund L.P., except to the compensationextent of their pecuniary interests in such shares, if any. The foregoing shares excludes 1,702,127 shares subject to warrants held by Frazier Life Sciences Public Fund L.P. that are not exercisable due to the beneficial ownership limitation set forth therein, which provides that such warrants may not be exercised if, after such exercise, the reporting person would beneficially hold more than 9.99% of our non-employee directors who served oncompany's common stock. The address for Frazier Life Sciences Public Fund L.P. is 601 Union Street, Suite 3200, Seattle, Washington 98101.
(16)Consists of (i) 50,000 shares of our common stock held indirectly through the Board during any partRobert E. Conway Revocable Trust and Carolyn J. Conway Revocable Trust, and (ii) 42,621 shares of 2015:

Name
 Fees earned or
paid in cash
($)(1)
 Option awards
($)(2)
 Total ($) 

Robert Conway

 $27,083 $206,018 $233,101 

Howard Furst, M.D. 

  36,563  206,018  242,581 

Jonathan Leff(3)

  23,698  206,018  229,716 

Evan Loh, M.D.(4)(5)

  31,896  109,208  141,104 

John Moore(4)(5)

  40,635  109,208  149,843 

our common stock issuable upon exercise of options within 60 days of April 20, 2022.
(1)
We began paying the retainers to(17)Consist of (i) 1,900 shares of our non-employee directors described above on a quarterly basis in arrearscommon stock held directly by Mr. Peetz, and (ii) 34,766 shares of our common stock issuable upon the closingexercise of options within 60 days of April 20, 2022.
(18)Consists of (i) 27,116 shares of our initial public offering in June 2015. Therefore,common stock issuable upon the fees earned or paid in cash during 2015 reflected in the table above reflect the portionexercise of the annual fees earned for the period from the closingoptions within 60 days of April 20, 2022, (ii) 4,708,288 shares of our initial public offering in June 2015 through December 31, 2015. Joseph Loscalzo, M.D. was a membercommon stock held directly by Decheng Capital China Life Sciences USD Fund III, L.P. and (iii) 1,234,636 shares of our Board during 2015 until his resignation effectivecommon stock issuable upon the exercise of warrants held by Decheng Capital China Life Sciences USD Fund III, L.P. which are exercisable within 60 days of April 3, 2015.20, 2022. Please see footnote 1 regarding Dr. Loscalzo received no compensation for his services onCui’s voting and investment power over the Board during 2015.

(2)
shares held by Decheng Capital China Life Sciences USD Fund III, L.P.
The amounts reported reflect the grant date fair value(19) Consists of these awards as determined in accordance with Financial Accounting Standards Board Accounting Standards Codification Topic 718, Compensation—Stock Compensation, excluding the effects of estimated forfeitures. The value of stock option awards granted prior to our initial public offering was estimated using the Black-Scholes option-pricing model. The valuation assumptions used in the valuation of option grants may be found in Note 8 to our consolidated financial statements included in our annual report on Form 10-K for the year ended December 31, 2015 and filed with the SEC on March 8, 2016.

As of December 31, 2015, the non-employee directors held outstanding options to purchase the following number of19,316 shares of our common stock: Mr. Conway 19,125 shares; Dr. Furst 19,125 shares; Mr. Leff 19,125 shares; Dr. Loh 21,148 shares;stock issuable upon the exercise of options within 60 days of April 20, 2022.

(20)Includes only current directors and Mr. Moore 21,148 shares.

(3)
Mr. Leff's term will expire at the Annual Meeting.

(4)
Pursuant to grantsexecutive officers serving in such capacity as of restricted unit awards in February 2012 that were subsequently converted into grants of restricted stock in August 2012, each of Dr. Loh and Mr. Moore held 2,073April 20, 2022. Includes 2,266,909 shares of restrictedour common stock asissuable upon the exercise of December 31, 2015. The awards provide for a four-year vesting period, with restrictions lapsing on 25%options within 60 days of April 20, 2022 and 1,599,579 shares of our common stock issuable upon the restricted stock on the first anniversaryexercise of the grant date, and restrictions lapsing on 1/48thwarrants within 60 days of the of the restricted stock monthly thereafter so that all restrictions have lapsed on the fourth anniversary of the grant date. The vesting for these awards is measured from February 15, 2012. As a result, all restrictions will lapse as of February 15, 2016.

(5)
For the period from January 1, 2015 through June 15, 2015, Mr. Moore and Dr. Loh received quarterly retainers of $5,000 each, and meeting fees of $2,000 for each in person meeting of the Board attended and $1,000 for each telephonic meeting of the Board attended.
April 20, 2022.

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    Director Agreements

        We previously had agreements with certain of our non-employee directors with respect to their service.

        Effective February 15, 2012, we entered into agreements with each of Dr. Loh and Mr. Moore that provided that they would each serve as a member of our Board of Directors and would provide such other services as may be reasonably requested. The agreements provided that they may be terminated by either party at any time upon written notice

RELATED PARTY TRANSACTIONS
In addition to the other party. The agreements provided that Dr. Lohcompensation arrangements, including employment, termination of employment and Mr. Moore will each be paid a retainer fee of $5,000 per quarter, and meeting fees of $2,000 per meeting if attendedchange-in-control arrangements discussed, when required, elsewhere in person and $1,000 per meeting if attended by teleconference, and would be reimbursed for reasonable expenses incurred in connection with performance of their services. Pursuant tothis report, the agreements, Dr. Loh and Mr. Moore each received a one-time equity grant in 2012. The agreements also contain confidentiality provisions. These agreements terminated upon completion of our initial public offering in June 2015.

        We have entered into indemnification agreements with our directors. See "—Limitations of Liability and Indemnification" for additional information.


TRANSACTIONS WITH RELATED PERSONS

Certain Relationships and Related Transactions

        The following is a description of transactionseach transaction since January 1, 20142020 and each currently proposed transaction in which:

we have been or are to which Nivalis has beenbe a party, in which participant;
the amount involved in the transaction exceeds the lesser of $120,000 or one percent of the average of our total assets as of the end of the last two fiscal years,$120,000; and in which
any of our directors, executive officers or to our knowledge, beneficial ownersholders of more than five percent5% of our capital stock, or any immediate family member of or person sharing the household with any of these individuals, had or will have a direct or indirect material interest, other than compensation, termination and change-of-control arrangements. We believe thatinterest.
In addition to the terms obtained or consideration that we paid or received, as applicable, in connection with the transactionsarrangements described below, were comparable to terms available or the amounts that would be paid or received, as applicable, in arm's-length transactions.

    Series E Financing

        In February, March, April, June, July and August 2014, we issued $9.0 million of convertible debt to Deerfield Management and $3.0 million of convertible debt to the Estate of Arnold S. Snider. The convertible debt bore interest at 8.0% per annum. The outstanding principal and accrued and unpaid interest was due and payable on February 3, 2015, unless earlier converted into Series B convertible preferred stock. The conversion price was the lower of $0.351 per share and 75% of the price at which a new series of preferred stock was issued by us. All of this outstanding convertible debt was converted into Series 1 convertible preferred stock as part of the financing discussed in "—Series 1 Financing".

    Series 1 Financing

        On September 23, 2014, we issued 8,813,203 shares of Series 1 convertible preferred stock at a price of $1.40 per share through the conversion of $12.4 million of debt and related interest held by two separate investors. 2,200,404 shares of Series 1 convertible preferred stock were issued to the Estate of Arnold H. Snider, III, a 5% stockholder, and 6,612,799 shares of Series 1 convertible preferred stock were issued to Deerfield Management,have also a 5% stockholder. For these stockholders, the transactions resulted in an immaterial gain, which was recognized through equity.


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    Series 2 Financing

        In November and December 2014, we issued 11,165,783 shares of Series 2 convertible preferred stock at a price of $2.85 per share resulting in an aggregate purchase price of $31.0 million, of which 2,280,699 shares were sold to Deerfield Management for a purchase price of $6.5 million.

    Preferred Stock Conversion

        In accordance with the terms of our certificate of incorporation, as then in effect, immediately prior to the closing of our initial public offering in June 2015, our Series 1 convertible preferred stock and Series 2 convertible preferred stock converted into an aggregate of 3,050,604 and 3,864,921 shares of our common stock, respectively. Our Series 1 convertible preferred stock and Series 2 convertible preferred stock was held by the following 5% holders of a class of our capital stock (who are also affiliated with certain of our directors and executive officers): Estate of Arnold H. Snider, III; Deerfield Management entities; RA Capital Healthcare Fund, LP; and Wellington Management (which, including certain affiliated entities, we refer to as the 5% Stockholders). No accrued and unpaid dividends was paid in cash in connection with this conversion.

    Right of First Refusal and Co-Sale Agreement

        On November 18, 2014, we entered into the Second Amended and Restated Right of First Refusal and Co-Sale Agreement, or the ROFR and Co-Sale Agreement, with certain holders of our common stock and our then outstanding Series 1 convertible preferred stock and Series 2 convertible preferred stock. These holders include the 5% Stockholders. The ROFR and Co-Sale Agreement provided for rights of first refusal and co-sale rights in respect of sales of securities by certain holders of our capital stock. The ROFR and Co-Sale Agreement terminated upon the consummation of our initial public offering in June 2015, and did not apply to the sale of shares in that offering.

    Investors' Rights Agreement

        Pursuant to the terms of an Investors' Rights Agreement, dated November 18, 2014, or the Investors' Rights Agreement, between us and certain holders of our common stock and our then outstanding Series 1 convertible preferred stock and Series 2 convertible preferred stock, the holders of 8,955,283 shares of our common stock (including shares of common stock issuable upon conversion of our outstanding Series 1 convertible preferred stock and Series 2 convertible preferred stock)arrangements which are entitled to rights with respect to the registration of these sharesdescribed under the Securities Act, as described below. These holders include the 5% Stockholders. The Investors' Rights Agreement also provides holders of our then outstanding Series 1 convertible preferred stock and Series 2 convertible preferred stockcaption “Executive Compensation — Executive Employment Arrangements with a participation right to purchase their pro rata share of new securities that we may propose to sell and issue, subject to specified exceptions, which rights terminated upon consummation of our initial public offering in June 2015.

        At any time beginning 180 days after the effective date of our registration statement for our initial public offering, and upon the request of holders of at least 40% of the then-outstanding shares covered by the Investors' Rights Agreement (we refer to such shares as the Registrable Securities) requesting the registration on Form S-1 of at least 35% of the Registrable Securities then outstanding, we must (i) within 10 days, give notice to all holders of our capital stock with registration rights, who have 20 days to request inclusion in the offering, and (ii) within 90 days, file a registration statement covering all shares timely requested to be registered. We are required to effect no more than three such registrations.


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        The holders of registration rights can request that we register all or a portion of their shares on Form S-3 if we are eligible to file a registration statement on Form S-3, upon which request we must (i) within 10 days, give notice to all holders of our capital stock with registration rights, who have 20 days to request inclusion in the registration, and (ii) within 45 days, file a registration statement on Form S-3 covering all shares timely requested to be registered. We may be required to effect an unlimited number of such registrations.

        We may postpone the filing of a registration statement for up to 90 days once in any 12-month period if our Board of Directors determines in good faith that it would be materially detrimental to us and our stockholders to effect such registration at such time.

    Piggyback Registration Rights

        If we propose to register any of our common stock under the Securities Act in connection with a public sale solely for cash, we must promptly give notice to all holders of our common stock with registration rights, who have 20 days to request inclusion in the registration, and cause to be registered shares held by our stockholders with registration rights that request to include their shares in the registration statement. However, this right does not apply to certain registrations, such as those relating to any of our employee benefit plans or a corporate reorganization. The managing underwriter of any underwritten public offering will have the right to limit, due to marketing reasons, the number of shares registered by these holders.

    Registration Expenses

        We will pay all expenses incurred in connection with each of the registrations described above, except for underwriters' discounts, selling commissions and other selling expenses. In addition, we will pay the reasonable fees and disbursements of counsel for the stockholders participating in such registration.

    Indemnification

        We have agreed, subject to certain exceptions, to indemnify against liabilities resulting from the registrations described above, each selling stockholder that is a party to the Investors' Rights Agreement, including our principal stockholders.

    Employment Agreements

        We have entered into employment agreements with our executive officers. For a description of the employment arrangements with our named executive officers, see the section of this prospectus entitled "Executive Compensation—Our Named Executive Officers.Employment Agreements".

    Participation in Initial Public Offering

        Entities affiliated with certain of the 5% Stockholders or our directors purchased shares of our common stock from the underwriters in our initial public offering in June 2015 at the public offering price. The number of shares that each of our principal stockholders purchased and the aggregate purchase price paid for such shares is set forth in the table below.

Name
 Shares of common stock
Purchased in Our Initial
Public Offering
 Aggregate
Purchase Price
 

Deerfield Management

  250,000 $3,500,000 

Wellington Management

  350,000 $4,900,000 

R.A. Capital Management

  150,000 $2,100,000 

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        As permitted by Delaware law, our amended and restated certificate of incorporation limits or eliminates the personal liability of our directors to the maximum extent currently or in the future permitted by Delaware law and also provide that:

        We have entered into indemnification agreements with our directors and officers to provide such officers and directors with additional contractual assurances regarding the scope of their indemnification. Each of these indemnification agreements will provide that we will indemnify the director or officer to the fullest extent permitted by law for claims arising in his capacity as a director or officer, provided that he acted in good faith and in a manner that he reasonably believed to be in, or not opposed to, our best interests and, with respect to any criminal proceeding, had no reasonable cause to believe that his conduct was unlawful. We expect that each of these indemnification agreements will provide that in the event that we do not assume the defense of a claim against a director or officer, we will be required to advance his expenses in connection with his defense, provided that he undertakes to repay all amounts advanced if it is ultimately determined that he is not entitled to be indemnified by us.

        We also maintain insurance on behalf of any person who is or was a director or officer against any loss arising from any claim asserted against him or her and incurred by him or her in any such capacity, subject to certain exclusions.

        We believe that these provisions and agreements are necessary to attract and retain qualified persons as directors and officers. Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers or persons controlling our company pursuant to the foregoing provisions, we understand that in the opinion of the SEC such indemnification is against public policy as expressed in the Securities Act and is therefore unenforceable.

Policies and Procedures with Respect tofor Related Party Transactions

        The Audit Committee

Our board of our Board has the primary responsibility for reviewing and approving or disapproving "related party transactions," which are transactions between us and related persons in which the aggregate amount involved exceeds or may be expected to exceed $120,000 and in which a related person has or will have a direct or indirect material interest. Our Boarddirectors has adopted a written policy governing the review and approval of related party transactions. For purposes of this policy, a related person will be defined as a director, executive officer, nominee for director or greater than 5% beneficial ownerThe audit committee of our common stock, in each case sinceboard of directors has the beginning of the most recently completed year,primary responsibility for reviewing and their immediate family members. Our Audit Committee charter provides that the Audit Committee shall review and approveapproving or disapprove anydisapproving related party transactions.

        All oftransactions, as designated in the transactions described above were entered into prior to the adoption of this policy. Accordingly, each was approved by disinterested members of our Board after making a determination that the transaction was executed on terms no less favorable than those that could have been obtained from an unrelated third party.

audit committee charter. In addition, our Code of Business Conduct and Ethics requires that each of our employees and directors inform his or her superior or the chairman of the Audit Committee,audit committee, respectively, of any material transaction or relationship that comes to theirhis or her attention that could reasonably be expected to


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create a conflict of interest. Further, at least annually, each director and executive officer will complete a detailed questionnaire that asks questions about any business relationship that may give rise to a conflict of interest and all transactions in which we are involved and in which thean executive officer, a director or a related person has a direct or indirect material interest.


STOCKHOLDER PROPOSALS

        The deadline for submitting

Affiliations with Principal Stockholders
Dr. Gold is an executive officer, and Dr. Venkatesan was an executive officer until August 2018. Each of Drs. Venkatesan and Gold is also a stockholder proposal for inclusionmember of our board of directors and, in our proxy statement and formtheir individual capacities, a limited partner of proxy for our 2017 Annual MeetingAlpine Immunosciences, L.P., Delaware limited partnership, which is a holder of Stockholders pursuant to Exchange Act Rule 14a-8 is November 21, 2016. Stockholders are also advised to review our Bylaws, which contain additional requirements with respect to advance notice of stockholder proposals not to be included in next year's proxy materials and director nominations including a requirement that we receive notice of any proposal or nomination no later than the close of business on January 27, 2017, nor earlier than on December 28, 2016. However, if the date of the next Annual Meeting is more than 30 days before or5% of our outstanding capital stock. In addition, each of Drs. Venkatesan and Gold, in their individual capacities, is a Managing Partner of Alpine BioVentures, GP, LLC, a Delaware limited liability company, which is the general partner of Alpine Immunosciences, L.P.
Dr. James N. Topper is a member of our board of directors and, in his individual capacity, is a managing member of FHM Life Sciences VIII, LLC, a Delaware limited liability company. FHM Life Sciences VIII, LLC is the general partner of FHM Life Sciences VIII, LP, a Delaware limited partnership. FHM Life Sciences VIII, LP is the general partner of Frazier Life Sciences VIII, L.P., a Delaware limited partnership, which is a holder of more than 60 days after5% of our outstanding capital stock. Dr. Topper is also, in his individual capacity, a member of FHMLSP, L.L.C., a Delaware limited liability company, the anniversary dategeneral partner of this Annual Meeting, stockholder notice to be timely must be delivered not later than the 90th day prior to such Annual Meeting or, if later, the tenth day following the day on which public disclosure of the date of such Annual Meeting is first made. Our Bylaws may be obtained by writing to Corporate Secretary, Nivalis Therapeutics, Inc.FHMLSP, L.P., 3122 Sterling Circle, Suite 200, Boulder, CO 80301.

HOUSEHOLDING OF PROXY MATERIALS

        The SEC has adopted rules that permit companies and intermediaries (e.g., brokers) to satisfy the delivery requirements for proxy and other Annual Meeting materials with respect to two or more stockholders sharing the same address by delivering a single set of proxy materials addressed to those stockholders. This process,Delaware limited partnership, which is commonly referred to as "householding," potentially means extra convenience for stockholders and cost savings for companies.

        If you have received notice from your broker that it will be "householding" communications to your address, "householding" will continue until you are notified otherwise or until you revoke your consent. If, at any time, you no longer wish to participate in "householding" and would prefer to receivethe general partner of Frazier Life Sciences Public Fund L.P., a separate set of proxy materials, please notify your broker or Nivalis. Direct your written request to Corporate Secretary, Nivalis Therapeutics, Inc., 3122 Sterling Circle, Suite 200, Boulder, CO 80301 or contact the Corporate Secretary at (720) 945-7700. Stockholders who currently receive multiple copiesDelaware limited partnership. Frazier Life Sciences Public Fund L.P. is a holder of our proxy materialscommon stock.

Mr. Peetz is a member of our board of directors and, in his individual capacity, is an Entrepreneur-in-Residence at their addressesFrazier Healthcare Partners, which is an affiliate of Frazier Life Sciences VIII, L.P.
Dr. Peter Thompson is a member of our board of directors and, would likein his individual capacity, is an employee of OrbiMed Advisors LLC. OrbiMed Advisors LLC is the managing member of OrbiMed Capital GP VI LLC. OrbiMed Capital GP VI LLC is the general partner of OrbiMed Private Investments VI, LP, which is a holder of more than 5% of our outstanding capital stock.
Dr. Xiangmin Cui is a member of our board of directors and, in his individual capacity, is the manager of Decheng Capital Management III (Cayman), LLC, which in turn is the general partner of Decheng Capital China Life Sciences USD Fund III, L.P. Decheng Capital China Life Sciences USD Fund III, L.P. is a holder of more than 5% of our outstanding capital stock.
Indemnification Agreements
We have entered into indemnification agreements with each of our directors and with each of our executive officers. Pursuant to request "householding" of their communications should contact their brokers.

the indemnification agreements, we have agreed to indemnify and hold harmless these directors and officers to the

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OTHER MATTERS

fullest extent permitted by applicable law. The Board knowsagreements generally cover expenses that a director or officer incurs or amounts that a director or officer becomes obligated to pay because of noany proceeding to which he or she is made or threatened to be made a party or participant by reason of his or her service as a current or former director, officer, employee or agent of Alpine Immune Sciences. The agreements also provide for the advancement of expenses to the directors and executive officers subject to specified conditions. There are certain exceptions to our obligation to indemnify the directors and officers, including any intentional misconduct or act where the director or officer did not in good faith believe he or she was acting in our best interests, with respect to “short-swing” profit claims under Section 16(b) of the 1934 Act and, with certain exceptions, with respect to proceedings that he or she initiates.
Indebtedness of Directors and Officers
None of our current or former directors or executive officers is indebted to us, nor are any of these individuals indebted to another entity which indebtedness is the subject of a guarantee, support agreement, letter of credit or other matters that will be presentedsimilar arrangement or understanding provided by us.
Private Placements
September 2021 Private Placement
In September 2021, we entered into a securities purchase agreement for considerationa private placement with a select group of institutional investors, pursuant to which we sold 6,489,357 shares of our common stock and prefunded warrants to purchase 3,191,487 shares of common stock. The purchase price for each share of common stock and for each prefunded warrant was $9.40 per share, for an aggregate purchase price of approximately $91.0 million.
The following table summarizes the purchases in September 2021 of our securities by our 5% stockholders at the Annual Meeting. If any other matters are properly brought before the meeting, it is the intentiontime of the persons namedSeptember 2021 private placement:
Name of PurchaserNumber of Shares of Common Stock PurchasedNumber of Shares of Common Stock Subject to WarrantsAggregate Purchase Price
Decheng Capital China Life Sciences USD Fund III, L.P.1,542,553 — $14,500,000 
Omega Fund VI, L.P.744,680 — $7,000,000 
Entities affiliated with Avidity Partners Management LP425,532 638,297 $9,999,993 
OrbiMed Private Investments VI, LP1,010,637 — $9,500,000 
Additionally, as part of the September 2021 private placement, Frazier Life Sciences Public Fund L.P., an entity for which Dr. Topper shares voting control with others, acquired prefunded warrants to purchase 1,702,127 shares of common stock. The aggregate purchase price for such prefunded warrants was $16,000,000.
In September 2021, we also entered into an exchange agreement with Frazier Life Sciences VIII, L.P. (the “Exchanging Stockholder”), pursuant to which we exchanged an aggregate of 1,200,000 shares of common stock held by the Exchanging Stockholder for prefunded warrants (the “Exchange Warrants”) to purchase an aggregate of 1,200,000 shares of common stock.
We also entered into a registration rights agreement with the investors in the accompanying proxySeptember 2021 private placement. The registration rights agreement required us to vote on such matters in accordance with their best judgment.

By Orderregister the resale of the Boardshares of Directors

GRAPHIC

Chief Financial Officercommon stock issued and Secretary
March 21, 2016

Copiesissuable upon the exercise of our Annual Reportprefunded warrants issued in the September 2021 private placement. We filed witha registration statement on Form S-3 on November 10, 2021 covering the resale of such shares, which registration statement was declared effective by the Securities and Exchange Commission on November 19, 2021.

July 2020 Private Placement
On July 24, 2020, we entered into a securities purchase agreement in connection with the sale and issuance of 5,139,610 units and 790,710 prefunded units for an aggregate purchase price of $60.0 million. Each unit was sold at a purchase price of $10.1175 per unit and consists of one share of our common stock plus a warrant to purchase 0.3 shares of common stock at an exercise price of $12.74 per share. Each prefunded unit consists of one prefunded warrant to purchase one share of common stock at an exercise price of $0.001 per share and one warrant to purchase 0.3 shares of common stock at an exercise price of $12.74 per share.
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None of the purchasers in the July 2020 private placement was a greater than 5% holder of our outstanding capital stock prior to the July 2020 private placement.
We also entered into a registration rights agreement with the investors in the July 2020 private placement, including Omega Fund VI, L.P. and entities affiliated with Avidity Partners Management LP. The registration rights agreement required us to register the resale of the shares of common stock issued and issuable upon the exercise of warrants and prefunded warrants. We filed a registration statement on Form 10-KS-1 on August 11, 2020 covering the resale of such shares, which registration statement was declared effective by the Securities and Exchange Commission on August 18, 2020. On May 13, 2021 we filed a post-effective amendment to such registration statement to convert the Form S-1 into a registration statement on Form S-3; the post-effective amendment was declared effective by the Securities and Exchange Commission on May 18, 2021.
Registration Rights for January 2019 Private Placement
We previously entered into a registration rights agreements with the investors in the January 2019 private placement, including Alpine Immunosciences, L.P., OrbiMed Private Investments VI, LP and Frazier Life Sciences VIII, L.P., as well as Decheng Capital China Life Sciences USD Fund III, L.P. We filed a registration statement on Form S-1 on March 18, 2019 covering the resale of such shares, which registration statement was declared effective by the Securities and Exchange Commission on April 4, 2019. On May 13, 2021, we filed a post-effective amendment to such registration statement to deregister all unsold securities under such registration statement; the post-effective amendment was declared effective by the Securities and Exchange Commission on May 18, 2021.
Other Transactions
We have granted stock options and/or restricted stock units to our named executive officers, other executive officers and our directors.
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OTHER MATTERS
Third Party Compensation of Directors
None of our directors are a party to any agreement or arrangement that would require disclosure pursuant to Nasdaq Rule 5250(b)(3).
Delinquent Section 16(a) Reports
Section 16(a) of the Exchange Act requires that our directors and executive officers, and persons who own more than 10% of our common stock, file reports of ownership and changes in ownership with the SEC. Based on our review of such filings and written representations from certain reporting persons that no Form 5 is required, we believe that during the fiscal year ended December 31, 2015 is2021, all directors, executive officers and greater than 10% stockholders complied with all Section 16(a) filing requirements applicable to them, with the exception of the Form 4 due April 1, 2021 but filed by Jay Venkatesan on April 23, 2021.
2021 Annual Report and SEC Filings
Our financial statements for the year ended December 31, 2021 are included in our annual report on Form 10-K. Our annual report and this proxy statement are posted on our website at www.alpineimmunesciences.com and are available from the SEC at its website at www.sec.gov. You may also obtain a copy of our annual report without charge uponby sending a written request to: Corporate Secretary, Nivalis Therapeutics,to Investor Relations, Alpine Immune Sciences, Inc., 3122 Sterling Circle,188 East Blaine Street, Suite 200, Boulder, CO 80301.Seattle, Washington 98102. Copies of all exhibits to the annual report on


Form 10-K for the year ended December 31, 2021 may be obtained for a nominal fee, which fee will not exceed our reasonable expenses in furnishing such copies by sending a written request to Investor Relations, Alpine Immune Sciences, Inc., 188 East Blaine Street, Suite 200, Seattle, Washington 98102.

*    *    *
The board of directors does not know of any other matters to be presented at the 2022 Annual Meeting. If any additional matters are properly presented at the 2022 Annual Meeting, the persons named in the enclosed proxy card will have discretion to vote shares they represent in accordance with their own judgment on such matters.

VOTE BY INTERNET - www.proxyvote.com UseIt is important that your shares be represented at the 2022 Annual Meeting, regardless of the number of shares that you hold. You are, therefore, urged to vote by telephone or by using the Internet to transmitas instructed on the enclosed proxy card or execute and return, at your voting instructions and for electronic delivery of information up until 11:59 P.M. Eastern Timeearliest convenience, the day before the meeting date. Have yourenclosed proxy card in hand when you access the web site and follow the instructions to obtain your records and to create an electronic voting instruction form. NIVALIS THERAPEUTICS, INC. 3122 STERLING DRIVE BOULDER, CO 80301 ELECTRONIC DELIVERY OF FUTURE PROXY MATERIALS If you would like to reduce the costs incurred by our company in mailing proxy materials, you can consent to receiving all future proxy statements, proxy cards and annual reports electronically via e-mail or the Internet. To sign up for electronic delivery, please follow the instructions above to vote using the Internet and, when prompted, indicateenvelope that you agree to receive or access proxy materials electronically in future years. VOTE BY PHONE - 1-800-690-6903 Use any touch-tone telephone to transmit your voting instructions up until 11:59 P.M. Eastern Time the day before the meeting date. Have your proxy card in hand when you call and then follow the instructions. VOTE BY MAIL Mark, sign and date your proxy card and return it in the postage-paid envelope we have provided or return it to Vote Processing, c/o Broadridge, 51 Mercedes Way, Edgewood, NY 11717. TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: KEEP THIS PORTION FOR YOUR RECORDS DETACH AND RETURN THIS PORTION ONLY THIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATED. For Withhold For All Except To withhold authority to vote for any individual nominee(s), mark “For All Except” and write the number(s) of the AllAll The Board of Directors recommends you vote FOR the following: nominee(s) on the line below. 0 0 0 1. Election of Class I Directors Nominees 01 Paul Sekhri 02 John Moore The Board of Directors recommends you vote FOR the following proposal: 2To ratify the selection by the Audit Committee of the Board of Directors of Ernst & Young LLP as the independent registered public accounting firm of Nivalis Therapeutics for the fiscal year ending December 31, 2016. ForAgainst Abstain 0 0 0 NOTE: To transact such other business as may properly come before the meeting or any adjournment or postponement thereof. Yes 0 No 0 Please indicate if you plan to attend this meeting Please sign exactly as your name(s) appear(s) hereon. When signing as attorney, executor, administrator, or other fiduciary, please give full title as such. Joint owners should each sign personally. All holders must sign. If a corporation or partnership, please sign in full corporate or partnership name, by authorized officer. Signature [PLEASE SIGN WITHIN BOX] Date Signature (Joint Owners) Date 0000273646_1 R1.0.1.25

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