Table of Contents

 
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
FORM 10-Q
 
 
ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended September 30, 2017March 31, 2018
or
oTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from                     to                     
Commission File Number: 001-36152
 
 
Aerie Pharmaceuticals, Inc.
(Exact name of registrant as specified in its charter)
 
 
Delaware 20-3109565
(State or other jurisdiction of
incorporation or organization)
 
(I.R.S. Employer
Identification Number)
2030 Main Street,4301 Emperor Boulevard, Suite 1500400
Irvine, California 92614Durham, North Carolina 27703
(949) 526-8700(919) 237-5300
(Address of principal executive offices, zip code and telephone number, including area code)
 
 
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes:  ý    No:  o
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes:  ý    No:  o
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act. 
Large accelerated filer oý  Accelerated filerýo
    
Non-accelerated filer 
o (Do not check if a smaller reporting company)
  Smaller reporting companyo
      
Emerging growth company ýo   
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ýo

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  o    No  ý

As of NovemberMay 2, 2017,2018, there were 36,704,72939,496,520 shares of the registrant’s common stock, par value $0.001, outstanding.
 

TABLE OF CONTENTS
 
   
  Page
  
   
Item 1.
   
 
   
 
   
 
   
 
   
Item 2.
   
Item 3.
   
Item 4.
  
   
Item 1.
   
Item 1A.
   
Item 2.
   
Item 3.
   
Item 4.
   
Item 5.
   
Item 6.


Unless otherwise indicated or the context requires, the terms “Aerie,” “Company,” “we,” “us” and “our” refer to Aerie Pharmaceuticals, Inc. and its subsidiaries.

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS
This report contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). We may, in some cases, use terms such as “predicts,” “believes,” “potential,” “proposed,” “continue,” “estimates,” “anticipates,” “expects,” “plans,” “intends,” “may,” “would,” “could,” “might,” “will,” “should,” “exploring,” “pursuing” or other words that convey uncertainty of future events or outcomes to identify these forward-looking statements.
Forward-looking statements appear in a number of places throughout this report and include statements regarding our intentions, beliefs, projections, outlook, analyses or current expectations concerning, among other things:
the commercial launch and potential future sales of Rhopressa® (netarsudil ophthalmic solution) 0.02% (“Rhopressa®”) and RoclatanTM (netarsudil/latanoprost ophthalmic solution) 0.02%/0.005% (“RoclatanTM”) and any future product candidates, if approved;
the success, timingour commercialization, marketing, manufacturing and cost of our ongoingsupply management capabilities and anticipated preclinical studies and clinical trials for our current product candidates and potential future product candidates, including statements regarding the timing of initiation and completion of the studies and trials;strategies;
our expectations regarding the clinical effectiveness of our product candidates and results of our clinical trials;
the timing of and our ability to request, obtain and maintain U.S. Food and Drug Administration (“FDA”) or other regulatory authority approval of, or other action with respect to, our product candidates in the U.S., Canada, Europe, Japan and elsewhere, including the expected timing of, and regulatory and/or other review of, filings for our product candidates;
third-party payer coverage and reimbursement for Rhopressa® and RoclatanTM and any future product candidates, if approved;
the glaucoma patient market size and the rate and degree of market adoption of Rhopressa® and RoclatanTM and any future product candidates, if approved, by eye care professionals and patients;
the timing, cost or other aspects of the commercial launch of Rhopressa® and RoclatanTM and any future product candidates, if approved;
the success, timing and cost of our ongoing and anticipated preclinical studies and clinical trials for Rhopressa®, with respect to regulatory approval outside the United States, RoclatanTM and any future product candidates, including statements regarding the timing of initiation and completion of the studies and trials;
our expectations regarding the effectiveness of Rhopressa®, RoclatanTM and any future product candidates and results of our clinical trials and any potential preclinical studies;
the timing of and our ability to request, obtain and maintain U.S. Food and Drug Administration (“FDA”) or other regulatory authority approval of, or other action with respect to, as applicable, Rhopressa®, RoclatanTMand any future product candidates in the United States, Canada, Europe, Japan and elsewhere, including the expected timing of, and regulatory and/or other review of, filings for, as applicable, Rhopressa®, RoclatanTM and any future product candidates;
our expectations related to the use of proceeds from our financing activities;
our estimates regarding anticipated operating expenses and capital requirements and our needs for additional financing;
the commercial launch and potential future sales of our current or any other future product candidates;
our commercialization, marketing, manufacturing and supply management capabilities and strategies;
third-party payor coverage and reimbursement for our product candidates;
the glaucoma patient market size and the rate and degree of market adoption of our product candidates by eye-care professionals and patients;
the timing, cost or other aspects of the commercial launch of our product candidates;
our plans to pursue development of additional product candidates and technologies in ophthalmology, including development of our product candidates for additional indications and other therapeutic opportunities;
the potential advantages of our product candidates;
our plans to explore possible uses of our existing proprietary compounds beyond glaucoma;
our plans to pursue development of additional product candidates and technologies in ophthalmology, including development of Rhopressa® and RoclatanTM for additional indications, our preclinical retina programs and other therapeutic opportunities, and our plans to explore possible uses of our existing proprietary compounds beyond glaucoma and ophthalmology;
the potential advantages of Rhopressa®, RoclatanTM and any future product candidates;
our ability to protect our proprietary technology and enforce our intellectual property rights;
our expectations regarding collaborations, licensing, acquisitions and strategic operations, including our ability to in-license or acquire additional ophthalmic products, product candidates or product candidates;technologies; and

ii


our stated objective of building a major ophthalmic pharmaceutical company.
By their nature, forward-looking statements involve risks and uncertainties because they relate to events, competitive dynamics, industry change and other factors beyond our control, and depend on regulatory approvals and economic and other environmental circumstances that may or may not occur in the future or may occur on longer or shorter timelines than anticipated. We discuss many of these risks under the heading “Risk Factors” in Part I, Item 1A of our Annual Report on Form 10-K for the fiscal year ended December 31, 2016,2017, as filed with the Securities and Exchange Commission (“SEC”) on March 9, 2017,1, 2018, and other documents we have filed or furnished with the SEC.
In particular, FDA approval of Rhopressa® does not constitute FDA approval of RoclatanTM, and there can be no assurance that we will receive FDA approval for RoclatanTM or any future product candidates. FDA approval of Rhopressa® also does not constitute regulatory approval of Rhopressa® in jurisdictions outside the United States, and there can be no assurance that Rhopressa® will obtain regulatory approval in other jurisdictions. In addition, the preclinical research discussed in this report is preliminary and the outcome of such preclinical studies may not be predictive of the outcome of later clinical trials. Any future clinical trial results may not demonstrate safety and efficacy sufficient to obtain regulatory approval related to the preclinical research findings discussed in this report, and we may suspend or discontinue research programs at any time for any reason.
You should not rely upon forward-looking statements as predictions of future events.

ii


In particular, our receipt of a Prescription Drug User Fee Act (“PDUFA”) goal date notification and the FDA advisory committee’s vote in favor of RhopressaTM do not constitute FDA approval of the RhopressaTM New Drug Application (“NDA”), and there can be no assurance that the FDA will complete its review by the PDUFA goal date, that the FDA will not require changes or additional data that must be made or received before it will approve the NDA, if ever, or that the FDA will approve the NDA.
Although we believe that we have a reasonable basis for each forward-looking statement contained in this report, we caution you that forward-looking statements are not guarantees of future performance and that our actual results of operations, financial condition and liquidity, and the development of the industry in which we operate, may differ materially from the forward-looking statements contained in this report. In addition, even if our results of operations, financial condition and liquidity, and events in the industry in which we operate, are consistent with the forward-looking statements contained in this report, they may not be predictive of results or developments in future periods.
Any forward-looking statements that we make in this report speak only as of the date of this report. Except as required by law, we are under no duty to update or revise any of the forward-looking statements, whether as a result of new information, future events or otherwise, after the date of this report.


iii


PART I. FINANCIAL INFORMATION
Item 1. Financial Statements
AERIE PHARMACEUTICALS, INC.
Condensed Consolidated Balance Sheets
(Unaudited)
(in thousands, except share and per share data)
 
SEPTEMBER 30, 2017 DECEMBER 31, 2016MARCH 31, 2018 DECEMBER 31, 2017
Assets      
Current assets      
Cash and cash equivalents$194,078
 $197,945
$249,501
 $197,569
Short-term investments87,256
 35,717
84,476
 52,086
Inventory1,062
 
Prepaid expenses and other current assets2,065
 4,028
6,115
 4,487
Total current assets283,399
 237,690
341,154
 254,142
Long-term investments901
 
Property, plant and equipment, net19,246
 7,857
47,810
 31,932
Other assets2,656
 2,707
2,079
 4,202
Total assets$306,202
 $248,254
$391,043
 $290,276
Liabilities and Stockholders’ Equity      
Current liabilities      
Accounts payable and other current liabilities$18,045
 $18,820
Interest payable551
 551
Accounts payable$6,066
 $6,245
Accrued expenses and other current liabilities19,070
 18,939
Total current liabilities18,596
 19,371
25,136
 25,184
Convertible notes, net123,769
 123,539
123,922
 123,845
Other non-current liabilities4,569
 
5,714
 5,648
Total liabilities146,934
 142,910
154,772
 154,677
Commitments and contingencies (Note 11)
 
Commitments and contingencies (Note 10)
 
Stockholders’ equity      
Preferred stock, $0.001 par value; 15,000,000 shares authorized as of September 30, 2017 and December 31, 2016; None issued and outstanding
 
Common stock, $0.001 par value; 150,000,000 shares authorized as of September 30, 2017 and December 31, 2016; 36,426,830 and 33,458,607 shares issued and outstanding as of September 30, 2017 and December 31, 2016, respectively36
 33
Preferred stock, $0.001 par value; 15,000,000 shares authorized as of March 31, 2018 and December 31, 2017; None issued and outstanding
 
Common stock, $0.001 par value; 150,000,000 shares authorized as of March 31, 2018 and December 31, 2017; 39,503,110 and 36,947,637 shares issued and outstanding as of March 31, 2018 and December 31, 2017, respectively40
 37
Additional paid-in capital562,545
 422,002
740,952
 597,318
Accumulated other comprehensive loss(98) (68)(157) (28)
Accumulated deficit(403,215) (316,623)(504,564) (461,728)
Total stockholders’ equity159,268
 105,344
236,271
 135,599
Total liabilities and stockholders’ equity$306,202
 $248,254
$391,043
 $290,276

The accompanying notes are an integral part of these condensed consolidated financial statements.


AERIE PHARMACEUTICALS, INC.
Condensed Consolidated Statements of Operations and Comprehensive Loss
(Unaudited)
(in thousands, except share and per share data)
 
THREE MONTHS ENDED SEPTEMBER 30, NINE MONTHS ENDED SEPTEMBER 30,THREE MONTHS ENDED MARCH 31,
2017 2016 2017 20162018 2017
Operating expenses          
Selling, general and administrative$19,774
 $10,627
 $51,402
 $29,814
$27,823
 $14,475
Research and development12,408
 12,688
 33,977
 38,301
12,972
 10,954
Total operating expenses32,182
 23,315
 85,379
 68,115
40,795
 25,429
Loss from operations(32,182) (23,315) (85,379) (68,115)(40,795) (25,429)
Other income (expense), net(141) (460) (1,071) (1,490)96
 (312)
Net loss before income taxes(32,323) (23,775) (86,450) (69,605)(40,699) (25,741)
Income tax expense49
 39
 142
 132

 46
Net loss$(32,372) $(23,814) $(86,592) $(69,737)$(40,699) $(25,787)
Net loss per common share - basic and diluted$(0.89) $(0.81) $(2.48) $(2.52)
Weighted average number of common shares outstanding - basic and diluted36,210,329
 29,380,453
 34,932,551
 27,632,090
Net loss per common share—basic and diluted$(1.05) $(0.76)
Weighted average number of common shares outstanding—basic and diluted38,598,827
 33,777,395
          
Net loss$(32,372) $(23,814) $(86,592) $(69,737)$(40,699) $(25,787)
Unrealized (loss) gain on available-for-sale investments(17) (3) (30) 166
Unrealized loss on available-for-sale investments(129) (37)
Comprehensive loss$(32,389) $(23,817) $(86,622) $(69,571)$(40,828) $(25,824)

The accompanying notes are an integral part of these condensed consolidated financial statements.



AERIE PHARMACEUTICALS, INC.
Condensed Consolidated Statements of Cash Flows
(Unaudited)
(in thousands)
 
NINE MONTHS ENDED 
 SEPTEMBER 30,
THREE MONTHS ENDED 
 MARCH 31,
2017 20162018 2017
Cash flows from operating activities      
Net loss$(86,592) $(69,737)$(40,699) $(25,787)
Adjustments to reconcile net loss to net cash used in operating activities      
Depreciation916
 702
487
 291
Amortization of deferred financing costs and debt discount230
 227
Amortization and accretion of premium or discount on available-for-sale investments, net52
 403
Amortization of debt discounts77
 76
Amortization and accretion of premium or discount on investments, net(99) 52
Stock-based compensation18,072
 11,514
8,719
 4,850
Unrealized foreign exchange loss522
 
150
 
Changes in operating assets and liabilities      
Inventory(969) 
Prepaid, current and other assets1,718
 (916)(1,628) 1,427
Accounts payable and other current liabilities(1,981) (3,187)
Accounts payable, accrued expenses and other current liabilities(6,873) (5,763)
Net cash used in operating activities(67,063) (60,994)(40,835) (24,854)
Cash flows from investing activities      
Purchase of available-for-sale investments(101,217) (19,948)(56,195) (45,561)
Proceeds from sales and maturities of investments48,696

35,355
23,775

12,860
Purchase of property, plant and equipment(7,073) (1,392)(9,126) (904)
Net cash (used in) provided by investing activities(59,594) 14,015
Net cash used in investing activities(41,546) (33,605)
Cash flows from financing activities      
Proceeds from sale of common stock, net122,046
 167,387
135,972
 
Proceeds related to issuance of stock for stock-based compensation arrangements, net744
 470
(Payments) proceeds related to issuance of stock for stock-based compensation arrangements, net(1,420) 48
Other(239) 
Net cash provided by financing activities122,790
 167,857
134,313
 48
Net change in cash and cash equivalents(3,867) 120,878
51,932
 (58,411)
Beginning of period197,945
 91,060
End of period$194,078
 $211,938
Supplemental disclosures   
Income taxes paid$
 $1,790
Interest paid$1,636
 $1,641
Non-cash investing and financing activities   
Build-to-suit lease transaction (Note 8)
 

Cash and cash equivalents, at beginning of period197,569
 197,945
Cash and cash equivalents, at end of period$249,501
 $139,534
The accompanying notes are an integral part of these condensed consolidated financial statements.


AERIE PHARMACEUTICALS, INC.
Notes to the Condensed Consolidated Financial Statements
(Unaudited)
1. The Company
Aerie Pharmaceuticals, Inc. (“Aerie”), with its wholly-owned subsidiaries, Aerie Distribution, Inc., Aerie Pharmaceuticals Limited and Aerie Pharmaceuticals Ireland Limited (“Aerie Distribution,” “Aerie Limited” and “Aerie Ireland Limited,” respectively, together with Aerie, the “Company”), is a clinical-stagean ophthalmic pharmaceutical company focused on the discovery, development and commercialization of first-in-class therapies for the treatment of patients with open-angle glaucoma and other diseases of the eye. The Company has its principal executive offices in Irvine, California,Durham, North Carolina, and operates as one business segment.
The Company has two advanced-stagea U.S. Food and Drug Administration (“FDA”) approved product, candidates designed to lower intraocular pressure (“IOP”) in patients with open-angle glaucoma or ocular hypertension that it intends to commercialize on its own in North American markets, if approved. The Company’s strategy also includes pursuing regulatory approval for these product candidates in Europe and Japan on its own. The first product candidate, RhopressaTM® (netarsudil ophthalmic solution) 0.02% (“RhopressaTM®”), is a once-daily eye drop designed to lower IOP in patients with glaucoma or ocular hypertension, which the Company has submitted a New Drug Application (“NDA”) with the U.S. Food and Drug Administration (“FDA”) on February 28, 2017. The Prescription Drug User Fee Act goal date has been set for February 28, 2018. The Company also intends to file for European regulatory approval of Rhopressaan advanced-stage product candidate, RoclatanTM in the second half of 2018. Additionally, the Company has commenced Phase 1 and Phase 2 clinical trial activities for RhopressaTM on Japanese patients in the United States and anticipates conducting future Phase 3 clinical trials in Japan with the objective of receiving regulatory approval of RhopressaTM in Japan. The second product candidate is once-daily RoclatanTM (netarsudil/latanoprost ophthalmic solution) 0.02%/0.005% (“RoclatanTM”), both designed to reduce elevated intraocular pressure (“IOP”) in patients with open-angle glaucoma or ocular hypertension. The Company intends to commercialize Rhopressa® and RoclatanTM, if approved, on its own in North American markets. The Company’s strategy also includes pursuing regulatory approval for Rhopressa® and RoclatanTM in Europe and Japan on its own.
Rhopressa® is a once-daily eye drop designed to reduce elevated IOP in patients with open-angle glaucoma or ocular hypertension that received FDA approval on December 18, 2017. The Company launched Rhopressa® in the United States at the end of April 2018. The Company also intends to file a marketing authorization application with the European Medicines Agency for Rhopressa® in the second half of 2018. Additionally, the Company completed a Phase 1 clinical trial and commenced a Phase 2 clinical trial in the United States, which are designed to meet the requirements of Japan’s Pharmaceuticals and Medical Devices Agency for potential regulatory submission of Rhopressa® in Japan. These clinical trials include Japanese and Japanese-American subjects to support subsequent Phase 3 registration trials that are expected to be conducted in Japan.
The Company’s advanced-stage product candidate, RoclatanTM, is a once-daily fixed-dose combination of RhopressaTM® and latanoprost for which the Company plans to submit an NDA witha New Drug Application to the FDA in the second quarter of 2018. The Company is currently conducting a Phase 3 trial, named Mercury 3, in Europe comparing RoclatanTM to Ganfort®, which if successful, is expected to improve its commercialization prospects in that region. Mercury 3 is not necessary for approval in the United States.
On July 31, 2017, the Company entered into a collaborative research, development and licensing agreement with DSM, a global science-based company headquartered in the Netherlands. The Companyresearch collaboration agreement includes an option to license DSM’s bio-erodible polymer implant technology for evaluating its application to the delivery of certain Aerie compounds to treat ophthalmic diseases. This technology uses polyesteramide polymers to produce an injectable, thin fiber that is also conducting ongoing research to evaluate injectable sustained release formulation technologiesminute in size. Preclinical experiments have demonstrated early success in conjunction with the potential capability of delivering Aerie’s preclinical molecule, AR-13154 internally in the eyeAR-13503, including demonstration of linear, sustained elution rates over several months and achievement of target retinal drug concentrations.
On October 4, 2017, the Company entered into an Asset Purchase Agreement (the “Agreement”) with Envisia Therapeutics Inc. (“Envisia”) to acquire the rights to use PRINT® technology in ophthalmology, as well as rights relating to Envisia’s preclinical dexamethasone steroid implant for the potential treatment of retinal diseases such as wet age-related macular degeneration (“AMD”) and diabetic macular edema (“DME”), and is also evaluating possible uses for its existing proprietary portfolio of Rho kinase inhibitors beyond ophthalmology.
In 2015,that utilizes the Company revised its corporate structurePRINT® technology, referred to align with its business strategy outside of North America by establishing Aerie Limited and Aerie Ireland Limited. Aerie assigned the beneficial rights to its non-U.S. and non-Canadian intellectual property for its lead product candidates to Aerie Limited (the “IP Assignment”). As part of the IP Assignment, Aerie and Aerie Limited entered into a research and development cost-sharing agreement pursuant to which Aerie and Aerie Limited will share the costs of the development of intellectual property and Aerie Limited and Aerie Ireland Limited entered into a license arrangement pursuant to which Aerie Ireland Limited will develop and commercialize the beneficial rights of the intellectual property assigned as part of the IP Assignment. In 2016, Aerie assigned the beneficial rights to certain of Aerie’s intellectual property in the U.S. and Canada to Aerie Distribution, and amended and restated the research and development cost-sharing agreement to transfer Aerie’s rights and obligations under the agreement to Aerie Distribution.
AR-1105. The Company haswill also focus on using PRINT® to manufacture injectable implants containing AR-13503, potentially in conjunction with the bio-erodible polymer from DSM.
The Company had not yet commenced commercial operations as of March 31, 2018 and therefore hashad not generated product revenue. The Company launched Rhopressa® in the United States in late April 2018. As a result, Aerie commenced generating product revenues related to sales of Rhopressa® in the second quarter of 2018. The Company’s activities since inception have primarily consisted of developing product candidates, raising capital and performing research and development activities. The Company does not expect to generate revenue until and unless it receives regulatory approval of and successfully commercializes its current product candidates. The Company has incurred losses and experienced negative operating cash flows since inception. The Company has funded its operations primarily through the sale of equity securities (Note 8) and issuance of convertible notes (Note 7).
If the Company does not successfully commercialize Rhopressa®, RoclatanTM or any of its currentfuture product candidates, it may be unable to generate product revenue or achieve profitability. Accordingly, the Company may be required to obtain further funding through other public or private offerings, debt financing,financings, collaboration and licensing arrangements or other sources.

Adequate additional funding may not be available to the Company on acceptable terms, or at all. If the Company is unable to raise capital when needed or on attractive terms, it may be forced to delay, reduce or eliminate its research and development programs or commercialization and manufacturing efforts.

2. Significant Accounting Policies
Basis of Presentation
The Company’s interim condensed consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”). In the opinion of management, the Company has made all necessary adjustments, which include normal recurring adjustments necessary for a fair statement of the Company’s consolidated financial position and results of operations for the interim periods presented. Certain information and disclosures normally included in the annual consolidated financial statements prepared in accordance with U.S. GAAP have been condensed or omitted. These interim condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes for the year ended December 31, 20162017 included in the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on March 9, 2017.1, 2018 (“2017 Form 10-K”). The results for the three and nine months ended September 30, 2017March 31, 2018 are not necessarily indicative of the results to be expected for a full year, any other interim periods or any future year or period.
Principles of Consolidation
The interim condensed consolidated financial statements include the accounts of Aerie and its wholly-owned subsidiaries. All intercompany accounts, transactions and profits have been eliminated in consolidation.
Use of Estimates
The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and reported amounts of income and expenses during the reporting periods. Significant items subject to such estimates and assumptions include the valuation of stock options and operating expense accruals. Actual results could differ from the Company’s estimates.
CashEquivalents
The Company’s cash and cash equivalents, which include short-term highly liquid investments with original maturities of three months or less, are held at several financial institutions and at times may exceed insured limits. The Company has placed these funds in high quality institutions in order to minimize risk relating to exceeding insured limits.
Inventories
Prior to the date the Company obtains regulatory approval for any of its product candidates, manufacturing costs related to commercial production for such product candidate are expensed as selling, general and administrative expense. Once regulatory approval is obtained, the Company capitalizes such costs as inventory. Rhopressa® obtained FDA approval on December 18, 2017, but no inventory was produced from the FDA approval date through the end of 2017; therefore, no inventory was capitalized on the consolidated balance sheet as of December 31, 2017. The Company capitalized inventory manufactured and received during the three months ended March 31, 2018. All inventory on the condensed consolidated balance sheet as of March 31, 2018 was classified as finished goods.
Inventories are stated at the lower of cost or estimated realizable value. The Company determines the cost of inventory using the first-in, first-out (“FIFO”) method.
Property, Plant and Equipment, Net
Property, plant and equipment is recorded at historical cost. Depreciation is calculated using the straight-line method over the estimated useful lives of the related assets. Construction-in-progress reflects amounts incurred for property, plant or equipment construction or improvements that have not been yet placed in service, which primarily relates to the build-out of the Company’s manufacturing plant in Ireland (Note 5). Repairs and maintenance are expensed when incurred. Upon retirement or sale, the cost of the assets disposed of and the related accumulated depreciation are removed from the accounts, and any resulting gain or loss is included in the determination of net loss.

Estimated useful lives by major asset category are as follows:
Manufacturing equipment10 years
Laboratory equipment7 years
Furniture and fixtures5 years
Software and computer equipment3 years
Leasehold improvementsLower of estimated useful life or term of lease
Investments
The Company determines the appropriate classification of its investments in debt and equity securities at the time of purchase. The Company’s investments are comprised of certificates of deposit, commercial paper and corporate bonds and government agency securities that are classified as available-for-sale in accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 320, Investments—Debt and Equity Securities. The Company classifies investments available to fund current operations as current assets on its consolidated balance sheets. Investments are classified as long-term assets on the consolidated balance sheets if (i) the Company has the intent and ability to hold the investments for a period of at least one year and (ii) the contractual maturity date of the investments is greater than one year.
Available-for-sale investments are recorded at fair value, with unrealized gains or losses included in comprehensive loss on the condensed consolidated statements of operations and comprehensive loss and in accumulated other comprehensive loss on the condensed consolidated balance sheets. Realized gains and losses, are determined usinginterest earned on the specific identification methodCompany’s cash, cash equivalents and investments, and amortization or accretion of discounts and premiums on investments are included as a component ofinterest income within other income (expense), net (Note 3).net. Interest income was $0.8 million and $0.3 million for the three months ended March 31, 2018 and 2017, respectively. There were no realized gains or losses recognized for the three and nine months ended September 30, 2017March 31, 2018 or 2016.
The Company reviews investments for other-than-temporary impairment whenever the fair value of an investment is less than the amortized cost and evidence indicates that an investment’s carrying amount is not recoverable within a reasonable period of time. To determine whether an impairment is other-than-temporary, the Company considers its intent to sell, or whether it is more likely than not that the Company will be required to sell the investment before recovery of the investment’s amortized cost basis. Evidence considered in this assessment includes reasons for the impairment, the severity and the duration of the impairment and changes in value subsequent to period end. As of September 30, 2017, there were no investments with a fair value that was significantly lower than the amortized cost basis or any investments that had been in an unrealized loss position for a significant period.

2017.
Fair Value Measurements
The Company records certain financial assets and liabilities at fair value based on the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants. The fair value of the Company’s financial instruments, including cash and cash equivalents and accounts payable, approximate their respective carrying values due to the short-term nature of these instruments. The estimated fair value of the 2014 Convertible Notes (as defined in Note 7) was $269.8 million and $209.6 million as of September 30, 2017 and December 31, 2016, respectively. The increase in the estimated fair value of the 2014 Convertible Notes was primarily attributable to the increase in the closing price of Aerie’s common stock on September 30, 2017 as compared to December 31, 2016.
Adoption of New Accounting Standards
In January 2017, the FASB issued Accounting Standards Update (“ASU”) 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business (“ASU 2017-01”). The new standard clarifies the definition of a business and provides a screen to determine when an integrated set of assets and activities is not a business. The screen requires that when substantially all of the fair value of the gross assets acquired, or disposed of, is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. The new standard is effective for the Company beginning on January 1, 2018; however, Aerie has elected to early adopt this standard as of July 1, 2017. The adoption of ASU 2017-01 had no impact on the Company’s financial statements for the three and nine months ended September 30, 2017, but may impact the accounting for subsequent business development transactions. See Note 12, “Subsequent Events,” for additional information.
Recent Accounting Pronouncements
In May 2017, the FASB issued ASU 2017-09, Compensation - Stock Compensation (Topic 718): Scope of Modification Accounting, which clarifies when changes to the terms or conditions of a share-based payment award must be accounted for as modifications. Under ASU 2017-09, an entity will not apply modification accounting to a share-based payment award if the award’s fair value, vesting conditions and classification as an equity or liability instrument are the same immediately before and after the change. ASU 2017-09 will be applied prospectively to awards modified on or after the adoption date. The guidance is effective for the Company beginning on January 1, 2018. Early adoption is permitted. The Company is evaluating the impact of the adoption of this guidance on its consolidated financial statements but does not expect it to have a material impact.
In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory, which eliminates the exception to the principle in ASC 740, Income Taxes,that generally requires comprehensive recognition of current and deferred income taxesfor all intra-entity sales of assets other than inventory. As a result, a reporting entity would recognize the tax expense from the sale of the asset in the seller’s tax jurisdiction when the transfer occurs, even though the pre-tax effects of that transaction are eliminated in consolidation. The new standard is effective for the Company beginning on January 1, 2018, with early adoption permitted, and must be applied on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. At September 30, 2017, the Company has deferred $2.3 million of income tax effects from past intercompany transactions that are recorded as other assets that it expects to adjust through opening accumulated deficit when the Company adopts the standard on January 1, 2018.
In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which requires that financial assets measured at amortized cost be presented at the net amount expected to be collected. Currently, U.S. GAAP delays recognition of the full amount of credit losses until the loss is probable of occurring. Under this new standard, the income statement will reflect an entity’s current estimate of all expected credit losses. The measurement of expected credit losses will be based upon historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. Credit losses relating to available-for-sale debt securities will be recorded through an allowance for credit losses rather than as a direct write-down of the security. The new standard is effective for the Company beginning on January 1, 2020. Early adoption is permitted for fiscal year beginning January 1, 2019. The new guidance prescribes different transition methods for the various provisions. The Company is currently evaluating the impact of this accounting standard update on its consolidated financial statements and disclosures.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which requires lessees to recognize a right of use asset and related lease liability for those leases classified as operating leases at the commencement date and for those leases that have lease terms of more than 12 months. The guidance is effective for the Company beginning on January 1, 2019, and all annual and interim periods thereafter, with early adoption permitted, and must be adopted using a modified retrospective transition approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements, and provides for certain practical expedients. The Company is currently evaluating the impact of this accounting standard update on the its consolidated financial statements and disclosures.
In January 2016, the FASB issued ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, which provides guidance related to the accounting for equity investments, financial liabilities under the fair value option and the presentation and disclosure requirements for financial instruments. The guidance is effective for the Company beginning on January 1, 2018, with early adoption permitted. The new guidance prescribes different transition methods for the various provisions. The Company is currently evaluating the impact of this accounting standard update on the its consolidated financial statements and disclosures, but does not expect it to have a material impact.
In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). The standard states that an entity should recognize revenue based on the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The FASB has subsequently issued amendments to ASU 2014-09 that have the same effective date of January 1, 2018. The future impact of ASU 2014-09 will be dependent on the nature of the Company’s future revenue contracts and arrangements, if any.
Net Loss per Common Share
Basic net loss per common share (“Basic EPS”) is calculated by dividing the net loss by the weighted average number of shares of common stock outstanding for the period, without consideration for potentially dilutive securities with the exception of warrants for common stock with a $0.05 exercise price, which are exercisable for nominal consideration and are therefore included in the calculation of the weighted-average number of shares of common stock as common stock equivalents. Diluted net loss per share (“Diluted EPS”) gives effect to all dilutive potential shares of common stock outstanding during this period. For Diluted EPS, net loss used in calculating Basic EPS is adjusted for certain items related to the dilutive securities.
For all periods presented, Aerie’s potential common stock equivalents have been excluded from the computation of Diluted EPS as their inclusion would have had an anti-dilutive effect.
The potential common stock equivalents that have been excluded from the computation of Diluted EPS consist of the following:
 THREE MONTHS ENDED 
 SEPTEMBER 30,
 NINE MONTHS ENDED 
 SEPTEMBER 30,
 2017 2016 2017 2016
2014 Convertible Notes(1)
5,040,323
 5,040,323
 5,040,323
 5,040,323
Outstanding stock options6,237,959
 5,152,024
 6,237,959
 5,152,024
Stock purchase warrants157,500
 157,500
 157,500
 157,500
Unvested restricted common stock awards439,549
 171,734
 439,549
 171,734
(1)Conversion is limited to a 9.985% ownership cap in shares of common stock by the holder. In addition to the common stock equivalents presented above, the 2014 Convertible Notes provide for an increase in the conversion rate if conversion is elected in connection with a significant corporate transaction. Refer to Note 7 for further information regarding the 2014 Convertible Notes.

3. Other Income (Expense), Net
Other income (expense), net consists of the following:
 THREE MONTHS ENDED 
 SEPTEMBER 30,
 NINE MONTHS ENDED 
 SEPTEMBER 30,
(in thousands)2017 2016 2017 2016
Interest and amortization expense$(597) $(600) $(1,799) $(1,910)
Foreign exchange loss(163) (4) (565) (14)
Investment income619
 144
 1,293
 434
 $(141) $(460) $(1,071) $(1,490)

The foreign exchange loss during the three and nine months ended September 30, 2017 is primarily related to the remeasurement of the Company’s Euro-denominated monetary liability related to its build-to-suit lease obligation (Note 8), which is held by a subsidiary with a U.S. dollar functional currency.
4. Investments
Cash, cash equivalents and investments as of September 30, 2017 included the following:
(in thousands)
AMORTIZED
COST
 
GROSS
UNREALIZED
GAINS
 
GROSS
UNREALIZED
LOSSES
 
FAIR
VALUE
Cash and cash equivalents:       
Cash and money market funds$194,078
 $
 $
 $194,078
Total cash and cash equivalents$194,078
 $
 $
 $194,078
Investments:       
Commercial paper (due within 1 year)$43,225
 $
 $
 $43,225
Corporate bonds (due within 1 year)44,125
 
 (94) 44,031
Corporate bonds (due within 2 years)905
 
 (4) 901
Total investments$88,255
 $
 $(98) $88,157
Total cash, cash equivalents and investments$282,333
 $
 $(98) $282,235


Cash, cash equivalents and investments as of December 31, 2016 included the following:
(in thousands)
AMORTIZED
COST
 
GROSS
UNREALIZED
GAINS
 
GROSS
UNREALIZED
LOSSES
 
FAIR
VALUE
Cash and cash equivalents:       
Cash and money market funds$196,445
 $
 $
 $196,445
Commercial paper1,500
 
 
 1,500
Total cash and cash equivalents$197,945
 $
 $
 $197,945
Investments:       
Certificates of deposit (due within 1 year)$6,920
 $4
 $(1) $6,923
Corporate bonds (due within 1 year)27,615
 4
 (75) 27,544
Government agencies (due within 1 year)1,250
 
 
 1,250
Total investments$35,785
 $8
 $(76) $35,717
Total cash, cash equivalents and investments$233,730
 $8
 $(76) $233,662
5. Fair Value Measurements
The Company records certain financial assets and liabilities at fair value in accordance with the provisions of ASC Topic 820, on fair value measurements.Fair Value Measurements and Disclosures. As defined in the guidance, fair value, defined as an exit price, represents the amount that would be received to sell an asset or pay to transfer a liability in an orderly transaction between market participants. As a result, fair value is a market-based approach that should be determined based on assumptions that market participants would use in pricing an asset or a liability. As a basis for considering these assumptions, the guidance defines a three-tier value hierarchy that prioritizes the inputs used in the valuation methodologies in measuring fair value.
Level 1—Unadjusted quoted prices in active, accessible markets for identical assets or liabilities.
Level 2—Other inputs that are directly or indirectly observable in the marketplace.
Level 3—Unobservable inputs that are supported by little or no market activity.
The fair value hierarchy also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.
There were no transfers between the different levels of the fair value hierarchy during the three months ended March 31, 2018.
Stock-Based Compensation
The estimated fair value of options to purchase common stock is determined on the date of grant using the Black-Scholes option pricing model. Options granted to non-employees are revalued at each financial reporting period until the required service is performed. The fair value of restricted stock awards (“RSAs”) granted is based on the market value of Aerie’s common stock on the date of grant. Compensation expense related to time-based RSAs is expensed on a straight-line basis over the vesting period. For RSAs with non-market performance conditions, the Company evaluates the criteria for each grant to determine the probability that the performance condition will be achieved. Compensation expense for RSAs with non-market performance conditions is recognized over the respective service period when it is deemed probable that the performance condition will be satisfied. Upon issuance and at each reporting period, the fair value of each stock appreciation rights (“SARs”) award is estimated using the Black-Scholes option pricing model and is marked to market through stock-based compensation expense. SARs are liability-based awards as they may only be settled in cash. 

Adoption of New Accounting Standards
In March 2018, the FASB issued Accounting Standards Update (“ASU”) 2018-05, Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118 (“SAB 118”), which adds guidance to clarify the treatment of income taxes based on changes enacted on December 22, 2017 in H.R. 1 (commonly referred to as the “Tax Act”). ASU 2018-05 incorporates references in ASC Topic 740 to SAB 118, which was issued on December 22, 2017, to address the application of U.S. GAAP in situations when a registrant may not have the necessary information available in reasonable detail to complete the accounting for certain income tax effects. The guidance became effective immediately upon the enactment of the Tax Act in accordance with U.S. GAAP which requires deferred tax assets and liabilities to be revalued during the period in which new tax legislation is enacted. The Company’s final impact assessment on the consolidated financial statements will be completed as additional information becomes available, but no later than one year from the enactment of the Tax Act.
In May 2017, the FASB issued ASU 2017-09, Compensation - Stock Compensation (Topic 718): Scope of Modification Accounting, which clarifies when changes to the terms or conditions of share-based payment awards must be accounted for as modifications. Under ASU 2017-09, an entity will not apply modification accounting to a share-based payment award if the award’s fair value, vesting conditions and classification as an equity or liability instrument are the same immediately before and after the change. ASU 2017-09 will be applied prospectively to awards modified on or after the adoption date. The guidance became effective for the Company beginning on January 1, 2018. The impact of the adoption of this guidance on its consolidated financial statements would be dependent on future modifications to share-based payment awards, if any.
In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory, which eliminates the exception to the principle in ASC Topic 740, Income Taxes,that generally requires comprehensive recognition of current and deferred income taxesfor all intra-entity sales of assets other than inventory. As a result, a reporting entity would recognize the tax expense from the sale of the asset in the seller’s tax jurisdiction when the transfer occurs, even though the pre-tax effects of that transaction are eliminated in consolidation. This ASU became effective for the Company on January 1, 2018, and was required to be applied on a modified retrospective basis through a cumulative-effect adjustment directly to accumulated deficit as of the beginning of the period of adoption. At December 31, 2017, the Company had $2.1 million of income tax effects deferred from past intercompany transactions that were recorded as prepaid assets within other assets, net, at December 31, 2017 that were adjusted through accumulated deficit as of January 1, 2018.
In January 2016, the FASB issued ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, which provides guidance related to the accounting for equity investments, financial liabilities under the fair value option and the presentation and disclosure requirements for financial instruments. The guidance became effective for the Company beginning on January 1, 2018 and prescribes different transition methods for the various provisions. The adoption of ASU 2016-01 did not have a material impact on its consolidated financial statements and disclosures.
In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). The standard states that an entity should recognize revenue based on the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The FASB has subsequently issued amendments to ASU 2014-09 that have the same effective date of January 1, 2018. Revenue from sales of Rhopressa® following the commercial launch in April 2018, as well as any other future revenue arrangements, will be recognized under the provisions of ASC Topic 606.
Recent Accounting Pronouncements
In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which requires that financial assets measured at amortized cost be presented at the net amount expected to be collected. Currently, U.S. GAAP delays recognition of the full amount of credit losses until the loss is probable of occurring. Under this ASU, the income statement will reflect an entity’s current estimate of all expected credit losses. The measurement of expected credit losses will be based upon historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. Credit losses relating to available-for-sale debt securities will be recorded through an allowance for credit losses rather than as a direct write-down of the security. This ASU is effective for the Company beginning on January 1, 2020, with early adoption permitted beginning on January 1, 2019. The new guidance prescribes different transition methods for the various provisions. The Company does not expect the adoption of ASU 2016-13 to have a material impact on its consolidated financial statements and disclosures.
In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which requires lessees to recognize a right of use asset and related lease liability for those leases classified as operating leases at the commencement date and for those leases that have lease terms of more than 12 months. The guidance is effective for the Company beginning on January 1, 2019, and all annual

and interim periods thereafter, with early adoption permitted, and must be adopted using a modified retrospective transition approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements, and provides for certain practical expedients. The Company is currently evaluating the impact of ASU 2016-02 on its consolidated financial statements and disclosures.
Net Loss per Common Share
Basic net loss per common share (“Basic EPS”) is calculated by dividing the net loss by the weighted average number of shares of common stock outstanding for the period, without consideration for potentially dilutive securities with the exception of warrants for common stock with a $0.05 exercise price, which are exercisable for nominal consideration and are therefore included in the calculation of the weighted average number of shares of common stock as common stock equivalents. Diluted net loss per share (“Diluted EPS”) gives effect to all dilutive potential shares of common stock outstanding during this period. For Diluted EPS, net loss used in calculating Basic EPS is adjusted for certain items related to the dilutive securities.
For all periods presented, Aerie’s potential common stock equivalents have been excluded from the computation of Diluted EPS as their inclusion would have had an anti-dilutive effect.
The potential common stock equivalents that have been excluded from the computation of Diluted EPS consist of the following:
 THREE MONTHS ENDED 
 MARCH 31,
 2018 2017
2014 Convertible Notes5,040,323
 5,040,323
Outstanding stock options7,125,947
 5,708,215
Stock purchase warrants157,500
 157,500
Nonvested restricted stock awards605,163
 348,660
Total12,928,933
 11,254,698
3. Investments
Cash, cash equivalents and investments as of March 31, 2018 included the following:
(in thousands)
AMORTIZED
COST
 
GROSS
UNREALIZED
GAINS
 
GROSS
UNREALIZED
LOSSES
 
FAIR
VALUE
Cash and cash equivalents:       
Cash and money market funds$237,514
 $
 $
 $237,514
Commercial paper11,987
 
 
 11,987
Total cash and cash equivalents$249,501
 $
 $
 $249,501
Investments:       
Commercial paper (due within 1 year)$44,209
 $
 $
 $44,209
Corporate bonds (due within 1 year)40,424
 
 (157) 40,267
Total investments$84,633
 $
 $(157) $84,476
Total cash, cash equivalents and investments$334,134
 $
 $(157) $333,977


Cash, cash equivalents and investments as of December 31, 2017 included the following:
(in thousands)
AMORTIZED
COST
 
GROSS
UNREALIZED
GAINS
 
GROSS
UNREALIZED
LOSSES
 
FAIR
VALUE
Cash and cash equivalents:       
Cash and money market funds$197,569
 $
 $
 $197,569
Total cash and cash equivalents$197,569
 $
 $
 $197,569
Investments:       
Commercial paper (due within 1 year)$30,883
 $
 $
 $30,883
Corporate bonds (due within 1 year)21,231
 
 (28) 21,203
Total investments$52,114
 $
 $(28) $52,086
Total cash, cash equivalents and investments$249,683
 $
 $(28) $249,655

4. Fair Value Measurements
The following tables summarize the fair value of financial assets and liabilities that are measured at fair value and the classification by level of input within the fair value hierarchy:
 
FAIR VALUE MEASUREMENTS AS OF
SEPTEMBER 30, 2017
FAIR VALUE MEASUREMENTS AS OF
MARCH 31, 2018
(in thousands)Level 1 Level 2 Level 3 TotalLevel 1 Level 2 Level 3 Total
Cash and cash equivalents:              
Cash and money market funds$194,078
 $
 $
 $194,078
$237,514
 $
 $
 $237,514
Commercial paper
 11,987
 
 11,987
Total cash and cash equivalents$194,078
 $
 $
 $194,078
$237,514
 $11,987
 $
 $249,501
Investments:              
Commercial paper$
 $43,225
 $
 $43,225
$
 $44,209
 $
 $44,209
Corporate bonds
 44,932
 
 44,932

 40,267
 
 40,267
Total investments$
 $88,157
 $
 $88,157
$
 $84,476
 $
 $84,476
Total cash, cash equivalents and investments$194,078
 $88,157
 $
 $282,235
$237,514
 $96,463
 $
 $333,977
 

FAIR VALUE MEASUREMENTS AS OF
DECEMBER 31, 2016
FAIR VALUE MEASUREMENTS AS OF
DECEMBER 31, 2017
(in thousands)Level 1 Level 2 Level 3 TotalLevel 1 Level 2 Level 3 Total
Cash and cash equivalents:              
Cash and money market funds$196,445
 $
 $
 $196,445
$197,569
 $
 $
 $197,569
Commercial paper
 1,500
 
 1,500
Total cash and cash equivalents$196,445
 $1,500
 $
 $197,945
$197,569
 $
 $
 $197,569
Investments:              
Certificates of deposit$
 $6,923
 $
 $6,923
Commercial paper$
 $30,883
 $
 $30,883
Corporate bonds
 27,544
 
 27,544

 21,203
 
 21,203
Government agencies
 1,250
 
 1,250
Total investments$
 $35,717
 $
 $35,717
$
 $52,086
 $
 $52,086
Total cash, cash equivalents and investments$196,445
 $37,217
 $
 $233,662
$197,569
 $52,086
 $
 $249,655


Convertible Notes
As of September 30, 2017March 31, 2018 and December 31, 2016,2017, the estimated fair value of the 2014$125.0 million aggregate principal amount of senior secured convertible notes (the “2014 Convertible NotesNotes”) was $269.8$299.0 million and $209.6$327.6 million, respectively. The estimated fair value of the 2014 Convertible Notes was determined using a scenario analysis and Monte Carlo simulation model to capture the various features of the 2014 Convertible Notes. The scenario analysis and Monte Carlo simulation require the use of Level 3 unobservable inputs and subjective assumptions, including but not limited to the probability of conversion, stock price volatility, the risk-free interest rate and credit spread. The increase in the estimated fair value of the 2014 Convertible Notes was primarily attributable to the increase in the closing price of Aerie’s common stock on September 30, 2017 as compared to December 31, 2016.assumptions. The estimates presented are not necessarily indicative of amounts that could be realized in a current market exchange. The use of alternative market assumptions and estimation methodologies could have a material effect on these estimates of fair value.
5. Property, Plant and Equipment, Net
Property, plant and equipment, net consists of the following:
(in thousands) MARCH 31, 2018 DECEMBER 31, 2017
Manufacturing equipment $2,102
 $2,082
Laboratory equipment 4,278
 3,602
Furniture and fixtures 1,273
 1,209
Software and computer equipment 2,168
 1,932
Leasehold improvements 2,012
 1,887
Construction-in-progress 39,499
 24,228
  51,332
 34,940
Less: Accumulated depreciation (3,522) (3,008)
Total property, plant and equipment, net $47,810
 $31,932
Manufacturing Plant Build-Out
In January 2017, the Company entered into a Euro-denominated lease agreement, expiring in September 2037, for a new manufacturing plant in Athlone, Ireland, under which the Company is leasing approximately 30,000 square feet of interior floor space for build-out. The Company is permitted to terminate the lease beginning in September 2027.
The Company is not the legal owner of the leased space. However, in accordance with ASC Topic 840, Leases, the Company is deemed to be the owner of the leased space, including the building shell, during the construction period because of the Company’s expected level of direct financial and operational involvement in the substantial tenant improvements required. As a result, the Company capitalized approximately $4.2 million as a build-to-suit asset within property, plant and equipment, net and recognized a corresponding build-to-suit facility lease obligation as a liability on its condensed consolidated balance sheets equal to the estimated replacement cost of the building at the inception of the lease. Additionally, equipment and construction costs incurred as part of the build-out are also capitalized within property, plant and equipment, net, as construction-in-progress.
Rental payments made under the lease will be allocated to interest expense and the build-to-suit facility lease obligation based on the implicit rate of the build-to-suit facility lease obligation. The build-to-suit facility lease obligation was approximately $5.0 million as of March 31, 2018, of which $0.3 million was classified as other current liabilities as of March 31, 2018. The lease obligation is denominated in Euros and is remeasured to U.S. dollars at the balance sheet date with any foreign exchange gain or loss recognized within other income (expense), net on the condensed consolidated statements of operations and comprehensive loss. Unrealized foreign currency loss related to the remeasurement of the lease obligation was $0.1 million for the three months ended March 31, 2018 and was de minimis for the three months ended March 31, 2017.


6. Accounts Payable &Accrued Expenses and Other Current Liabilities
Accounts payableAccrued expenses and other current liabilities consist of the following:
 
(in thousands)MARCH 31, 2018 DECEMBER 31, 2017
Accrued compensation and benefits (1)
$4,246
 $7,886
Accrued consulting and professional fees2,788
 3,841
Accrued research and development expenses (2)
1,361
 1,855
Accrued other (3)
10,675
 5,357
Total accrued expenses and other current liabilities$19,070
 $18,939
(in thousands)SEPTEMBER 30, 2017 DECEMBER 31, 2016
Accounts payable$3,651
 $5,610
Accrued expenses and other current liabilities:   
Employee benefits and compensation related accruals(1)
4,585
 4,111
Selling, general and administrative related accruals(2)
6,853
 2,908
Research and development related accruals(3)
2,956
 6,191
 $18,045
 $18,820
 
(1)ComprisedThe decrease in accrued compensation and benefits primarily relates to the payment of accrued bonus, accrued vacation and other employee-related expenses.2017 annual incentives during the three months ended March 31, 2018.
(2)Comprised of accruals such as outside professional fees, accruals related to commercial manufacturing activities and other business-related expenses.
(3)Comprised of accruals such as fees for investigative sites, contract research organizations, contract manufacturing organizations and other service providers that assist in conducting preclinical research studies and clinical trials.
(3)Comprised of accruals related to commercial manufacturing activities, interest payable and other business-related expenses. The increase at March 31, 2018 as compared to December 31, 2017 is due to a $5.8 million increase in accrued property, plant and equipment purchases as of March 31, 2018, primarily related to the Company’s manufacturing plant build-out in Ireland.


7. Convertible Notes
OnIn September 30, 2014, Aerie issued $125.0 million aggregate principal amount of senior secured convertible notes (“the 2014 Convertible Notes”)Notes to Deerfield Partners, L.P., Deerfield International Master Fund, L.P., Deerfield Private Design Fund III, L.P., Deerfield Special Situations Fund, L.P. and Deerfield Special Situations International Master Fund, L.P. On January 1, 2015, Deerfield Special Situations International Master Fund, L.P. transferred all of its rights under the 2014 Convertible Notes to Deerfield Special Situations Fund, L.P. (together, collectively with the other Deerfield entities listed above, “Deerfield”).their transferees, “Deerfield.” The 2014 Convertible Notes were issued pursuant to a note purchase agreement (as amended and supplemented from time to time, the “Note Purchase Agreement”), dated as of September 8, 2014, among Aerie and the Deerfield entities party thereto.
The 2014 Convertible Notes bear interest at a rate of 1.75% per annum payable quarterly in arrears on the first business day of each January, April, July and October. The 2014 Convertible Notes mature on the seventh anniversary from the date of issuance, unless earlier converted.
The 2014 Convertible Notes are guaranteed on a senior secured basis by Aerie Distribution. The 2014 Convertible Notes constitute the senior secured obligations of Aerie and Aerie Distribution, collateralized by a first priority security interest in substantially all of the assets of Aerie and Aerie Distribution. The Note Purchase Agreement provides that, upon the request of Aerie, Deerfield will release all of the liens on the collateral and the security agreement will terminate if both of the following occur: (i) beginning one month after FDA approval of either RhopressaTM® or RoclatanTM, shares of Aerie’s common stock have traded at a price above $30 per share (subject to adjustment for any subdivision or combination of outstanding common stock) for 30 consecutive trading days, and (ii) Aerie is prepared to close a financing that will be secured by a lien on Aerie’s assets, subject only to the release of the lien on Aerie’s assets held by Deerfield. Also, in connection with the assignment by Aerie of beneficial rights to its non-U.S. and non-Canadian intellectual property for Rhopressa® and RoclatanTM to Aerie Limited (the “IP Assignment”), Aerie granted Deerfield a security interest in certain intercompany promissory notes and pledged 65% of the voting stock of Aerie Limited. Upon the request of Aerie, Deerfield will release the lien on the intercompany promissory notes under certain circumstances.
The 2014 Convertible Notes are convertible at any time at the option of Deerfield, in whole or in part, into shares of common stock, including upon the repayment of the 2014 Convertible Notes at maturity (the “Conversion Option”). However, upon conversion, Deerfield (together with their affiliates) is limited to a 9.985% ownership cap in shares of common stock (the “9.985% Cap”). The 9.985% Cap would remain in place upon any assignment of the 2014 Convertible Notes by Deerfield.
The initial conversion price is $24.80 per share of common stock (equivalent to an initial conversion rate of 40.32 shares of common stock per $1,000 principal amount of 2014 Convertible Notes), representing a 30% premium over the closing price of the common stock on September 8, 2014. The conversion rate and the corresponding conversion price are subject to adjustment for stock dividends (other than a dividend for which Deerfield would be entitled to participate on an as-converted basis), stock splits, reverse stock splits and reclassifications. In addition, in connection with certain significant corporate transactions,

Deerfield, at its option, may (i) require Aerie to prepay all or a portion of the principal amount of the 2014 Convertible Notes, plus accrued and unpaid interest, or (ii) convert all or a portion of the principal amount of the 2014 Convertible Notes into shares of common stock or receive the consideration Deerfield would have received had Deerfield converted the 2014 Convertible Notes immediately prior to the consummation of the transaction. The 2014 Convertible Notes provide for an increase in the conversion rate if Deerfield elects to convert their 2014 Convertible Notes in connection with a significant corporate transaction. Thetransaction with the current maximum increase to the initial conversion rate in connection with a significant corporate transaction, isbeing 12.07 shares of common stock per $1,000 principal amount of 2014 Conversion Notes, which decreases over time and is determined by reference to the price of the common stock prior to the consummation of the significant corporate transaction or the value of the significant corporate transaction.
The Note Purchase Agreement contains various representations and warranties, and affirmative and negative covenants, customary for financings of this type, including restrictions on the incurrence of additional debt and liens on Aerie’s and its subsidiaries’ assets. As of September 30, 2017,March 31, 2018, Aerie was in compliance with the covenants. The Note Purchase Agreement also provides for certain events of default, including the failure to pay principal and interest when due; inaccuracies in Aerie’s or Aerie Distribution’s representations and warranties to Deerfield; failure to comply with any of the covenants; Aerie’s or Aerie Distribution’s insolvency or the occurrence of certain bankruptcy-related events; certain judgments against Aerie and its subsidiaries; the suspension, cancellation or revocation of governmental authorizations that are reasonably expected to have a material adverse effect on Aerie’s business; the acceleration of a specified amount of indebtedness; and the failure to deliver shares of common stock upon conversion of the 2014 Convertible Notes. If any event of default were to occur, and continue beyond any applicable cure period, the holders of more than 50% of the aggregate principal amount of the then outstanding 2014 Convertible Notes would be permitted to declare the principal and accrued and unpaid interest to be immediately due and payable.

The Company recorded the 2014 Convertible Notes as long-term debt at face value less $2.1 million in debt discounts relating to feesdiscount and certain expenses paid to Deerfield in connection with the transaction. The Conversion Option is a derivative that qualifies for an exemption from bifurcation and liability accounting as provided for in ASC 815, Derivatives and Hedging – Contracts in Entity’s Own Equity (“ASC 815”). Since the Conversion Option is not bifurcated as a derivative pursuant to ASC 815, the Company further evaluated the Conversion Option to determine whether it is considered a beneficial conversion feature (“BCF”). The Company determined that the initial accounting conversion price was greater than the fair value of the common stock at the close of trading on the date of issuance therefore no BCF existed at inception. However, if Deerfield elects to convert their 2014 Convertible Notes in connection with a significant corporate transaction, the increase to the initial conversion rate may cause a contingent BCF to existcosts incurred at the time of conversion. The contingent BCF, if any, will be recognized in earnings when the contingency is resolved and will be measured using the fair value of the common stock at the close of trading on the date of issuance and the accounting conversion price as adjusted for such an increasetransaction, which are being amortized to the initial conversion rate.
In connection with the IP Assignment, Aerie granted Deerfield a security interest in certain intercompany promissory notes and pledged 65% of the voting stock of Aerie Limited. Upon the request of Aerie, Deerfield will release the lien on the intercompany promissory notes under certain circumstances.
Unamortized debt discounts were $1.2 million as of September 30, 2017. Debt discounts are amortizedexpense using the effective interest method through the earlier of maturity or the conversion of the 2014 Convertible Notes.
The table below summarizes the carrying value of the 2014 Convertible Notes as of September 30,March 31, 2018 and December 31, 2017:
 
(in thousands)SEPTEMBER 30, 2017MARCH 31, 2018 DECEMBER 31, 2017
Gross proceeds$125,000
$125,000
 $125,000
Initial value of issuance costs recorded as debt discount(2,146)
Amortization of debt discount and issuance costs915
Unamortized debt discount and issuance costs(1,078) (1,155)
Carrying value$123,769
$123,922
 $123,845
For the three and nine months ended September 30, 2017 interestInterest expense related to the 2014 Convertible Notes, including amortization of debt discount and issuance costs, was $0.5 million and $1.6$0.6 million respectively. Forfor the three and nine months ended September 30, 2016 interest expense related to the 2014 Convertible Notes was $0.6 millionMarch 31, 2018 and $1.6 million,2017, respectively.
8. Build-to-Suit LeaseStockholders’ Equity
In January 2017, the Company entered into a Euro-denominated lease agreement, expiring in September 2037, for a new manufacturing plant in Athlone, Ireland, under which the Company is leasing approximately 30,000 square feet of interior floor space for build-out. The Company is permitted to terminate the lease beginning in September 2027. Total expected rental payments, using foreign exchange rates in effect at September 30, 2017, are approximately $2.7 million through September 2027 and approximately $6.4 million through the expiration of the lease.
The Company is not the legal owner of the leased space. However, in accordance with ASC 840, Leases, the Company is deemed to be the owner of the leased space, including the building shell, during the construction period because of the Company’s expected level of direct financial and operational involvement in the substantial tenant improvements required. As a result, the Company capitalized approximately $4.2 million as a build-to-suit asset within property, plant and equipment, net and recognized a corresponding build-to-suit facility lease obligation as a liability on its consolidated balance sheets equal to the estimated replacement cost of the building at the inception of the lease.

Additionally, construction costs incurred as part of the build-out and tenant improvements will also be capitalized within property, plant and equipment, net. Costs of approximately $10.0 million have been capitalized through September 30, 2017 related to both equipment purchases and the build-out of the facility. Rental payments made under the lease will be allocated to interest expense and the build-to-suit facility lease obligation based on the implicit rate of the build-to-suit facility lease obligation. The build-to-suit facility lease obligation was approximately $4.8 million as of September 30, 2017, of which $0.2 million was classified as other current liabilities as of September 30, 2017. The lease obligation is denominated in Euros and is remeasured to U.S. dollars at the balance sheet date with any foreign exchange gain or loss recognized within other income (expense), net on the condensed consolidated statements of operations and comprehensive loss. Unrealized foreign currency loss related to the remeasurement of the lease obligation forDuring the three and nine months ended September 30, 2017 was $0.2 million and $0.5 million, respectively.
9. Stockholders’ Equity
From the Company’s initial public offering (“IPO”) through DecemberMarch 31, 2016, the Company has2018, Aerie issued and sold (1) a total of 5,933,712approximately 1.0 million shares of Aerie’s common stock under its “at-the-market” sales agreements and received net proceeds of approximately $146.6$62.3 million, after deducting commissions at a rate$0.5 million of up to 3% of the gross sales price per share sold and other fees and expenses, and (2) 2,542,373 shares of common stock pursuant to an underwriting agreement, dated September 15, 2016, for whichunder the Company received net proceeds of approximately $71.0 million, after deducting the underwriting discount, fees and expenses of approximately $4.0 million.
During the nine months ended September 30, 2017, the Company has issued and sold 906,858 shares of common stock under its “at-the-market” sales agreement (“ATM”) that commenced in December 2017. There are no remaining shares available for whichissuance under the Company received net proceeds of approximately $49.3 million, after deducting commissions, fees and expenses of $0.6 million. Further, on May 25, 2017,ATM that commenced in December 2017. In addition, the Company entered into an underwriting agreement, relatingdated January 23, 2018, related to the registered public offering of 1,395,349approximately 1.3 million shares of the Company’sAerie’s common stock at a price to the public of $53.75 per share. The Companyand received net proceeds of approximately $72.7$74.1 million, after deducting $0.9 million of underwriting discounts, fees and expensesexpenses. The transactions were made pursuant to an automatic shelf registration on Form S-3, filed with the SEC on September 15, 2016, that permits the offering, issuance and sale of $2.3 million.an unlimited number of shares of common stock from time to time by Aerie.

Warrants
As of September 30, 2017, the Company also hasMarch 31, 2018, the following equity-classified warrants to purchase common stock were outstanding:
 
NUMBER OF
UNDERLYING
SHARES
NUMBER OF
UNDERLYING
SHARES
 
EXERCISE
PRICE PER
SHARE
 
WARRANT
EXPIRATION
DATE
 
EXERCISE
PRICE PER
SHARE
 
WARRANT
EXPIRATION
DATE
75,000
 $5.00
 February 2019 $5.00 February 2019
75,000
 $5.00
 November 2019 $5.00 November 2019
7,500
 $5.00
 August 2020 $5.00 August 2020
223,482
 $0.05
 December 2019 $0.05 December 2019
The warrants outstanding as of September 30, 2017March 31, 2018 are all currently exercisable with a weighted-average remaining life of 2.0 years.exercisable.

10. Stock-based9. Stock-Based Compensation
Stock-based compensation expense for options and restrictedgranted, RSAs, performance stock awards (“RSAs”PSAs”), SARs and stock purchase rights is reflected in the condensed consolidated statements of operations and comprehensive loss as follows:
 
 THREE MONTHS ENDED 
 SEPTEMBER 30,
 NINE MONTHS ENDED 
 SEPTEMBER 30,
(in thousands)2017 2016 2017 2016
Selling, general and administrative

$4,995
 $3,406
 $14,032
 $9,295
Research and development1,562
 693
 4,040
 2,219
Total$6,557
 $4,099
 $18,072
 $11,514

The estimated fair value of options to purchase common stock is determined on the date of grant using the Black-Scholes option pricing model. Options granted to non-employees are revalued at each financial reporting period until the required service is performed. The fair value of RSAs granted is based on the market value of Aerie’s common stock on the date of grant. Compensation expense related to time-based RSAs is expensed on a straight-line basis over the vesting period. For RSAs with non-market performance conditions, the Company evaluates the criteria for each grant to determine the probability that the performance condition will be achieved. Compensation expense for RSAs with non-market performance conditions is recognized over the respective service period when it is deemed probable that the performance condition will be satisfied.
 THREE MONTHS ENDED 
 MARCH 31,
(in thousands)2018 2017
Selling, general and administrative$6,684
 $3,786
Research and development2,035
 1,064
Total$8,719
 $4,850
As of September 30, 2017,March 31, 2018, the Company had $51.9$77.8 million of unrecognized compensation expense related to options granted under its equity plans. This expense is expected to be recognized over a weighted average period of 2.93.2 years as of September 30, 2017.March 31, 2018.
As of September 30, 2017,March 31, 2018, the Company had $10.8$23.1 million of unrecognized compensation expense related to unvested RSAs.RSAs, including PSAs. This expense is expected to be recognized over the weighted average contractual term period of 3.23.3 years as of September 30, 2017.March 31, 2018.

As of March 31, 2018, the Company had $1.6 million of unrecognized compensation expense related to unvested SARs granted under its equity plans. This expense is expected to be recognized over the weighted average period of 3.9 years as of March 31, 2018.
Equity Plans
The Company maintains three equity compensation plans, the 2005 Aerie Pharmaceutical Stock Plan (the “2005 Plan”), the 2013 Omnibus Incentive Plan (the “2013 Equity Plan”), which was amended and restated as the Aerie Pharmaceuticals, Inc. Amended and Restated Omnibus Incentive Plan (the “Amended and Restated Equity Plan”), as described below, and the Aerie Pharmaceuticals, Inc. Inducement Award Plan (the “Inducement Award Plan”), as described below. The 2005 Plan, the Amended and Restated Equity Plan and the Inducement Award Plan are referred to collectively as the “Plans.”
On October 30, 2013, the effective date of the 2013 Equity Plan, the 2005 Plan was frozen and no additional awards have been or will be made under the 2005 Plan. Any remaining shares available for future grant under the 2005 Plan were allocated to the 2013 Equity Plan.
On April 10, 2015, Aerie’s stockholders approved the adoption of the Amended and Restated Equity Plan and no additional awards have been or will be made under the 2013 Equity Plan. Any remaining shares available under the 2013 Equity Plan were allocated to the Amended and Restated Equity Plan. The Amended and Restated Equity Plan provides for the granting of up to 5,729,068 equity awards in respect of common stock of Aerie, including equity awards that were available for issuance under the 2013 Equity Plan. Additionally, the Amended and Restated Equity Plan provides for the granting of SARs awards, which the Company began granting to employees during the three months ended March 31, 2018.
On December 7, 2016, Aerie’s Board of Directors approved the Inducement Award Plan which provides for the granting of up to 418,000 equity awards in respect of common stock of Aerie which planand was subsequently amended during the year ended

December 31, 2017 to increase the equity awards that may be issued by 463,500 shares during the nine months ended September 30, 2017.an additional 874,500 shares. Awards granted under the Inducement Award Plan are intended to qualify as employment inducement awards under NASDAQ Listing Rule 5635(c)(4).

The following table summarizes the stock option activity under the Plans:
 
NUMBER OF
SHARES
 WEIGHTED AVERAGE
EXERCISE PRICE
 WEIGHTED
AVERAGE
REMAINING
CONTRACTUAL
LIFE (YEARS)
 AGGREGATE
INTRINSIC
VALUE
(000’s)
NUMBER OF
SHARES
 WEIGHTED AVERAGE
EXERCISE PRICE
 WEIGHTED
AVERAGE
REMAINING
CONTRACTUAL
LIFE (YEARS)
 AGGREGATE
INTRINSIC
VALUE
(000’s)
Options outstanding at December 31, 20165,255,930
 $14.34
 
 

Options outstanding at December 31, 20176,457,343
 $22.15
 
 

Granted1,203,459
 46.30
  793,236
 55.47
  
Exercised(202,134) 11.05
  (41,857) 19.61
  
Canceled(19,296) 32.82
  (82,775) 46.18
  
Options outstanding at September 30, 20176,237,959
 $20.56
 7.3 $176,569
Options exercisable at September 30, 20173,954,715
 $12.57
 6.4 $142,558
Options outstanding at March 31, 20187,125,947
 $25.57
 7.2 $207,230
Options exercisable at March 31, 20184,427,796
 $14.58
 6.1 $175,649

The following table summarizes the RSARSAs, including PSAs, activity under the Plans:
 
NUMBER OF
SHARES
 
WEIGHTED AVERAGE
FAIR VALUE PER SHARE
NUMBER OF
SHARES
 
WEIGHTED AVERAGE
FAIR VALUE PER SHARE
Nonvested RSAs at December 31, 2016164,194
 $19.87
Nonvested RSAs at December 31, 2017447,049
 $41.08
Granted332,512
 47.61
242,201
 55.45
Vested(54,591) 20.47
(83,571) 32.13
Canceled(2,566) 43.90
(516) 56.25
Nonvested RSAs at September 30, 2017439,549
 $40.64
Nonvested RSAs at March 31, 2018605,163
 $48.05
The vesting of time-basedthe RSAs is service-basedtime and service based with terms of one to four years. During the nine monthsyear ended September 30,December 31, 2017, the Company granted 98,817 RSAs with non-market performance conditions that vest upon the satisfaction of certain performance conditions and service conditions.
During the three months ended March 31, 2018, the Company granted 53,000 SARs awards at a weighted average exercise price of $55.15 and had a weighted average remaining contractual life of 4.9 years. All of these awards were outstanding at March 31, 2018.
Holders of these SARs are entitled under the terms of the Plans to receive cash payments calculated based on the excess of the Company’s common stock price over the target price in their award; consequently, these awards are accounted for as liability-classified awards and the Company measures compensation cost based on their estimated fair value at each reporting date, net of actual forfeitures, if any.
11.10. Commitments and Contingencies
The Company may periodically become subject to legal proceedings and claims arising in connection with its business. TheExcept as previously disclosed for matters which have now concluded, the Company is not a party to any known litigation, is not aware of any unasserted claims and does not have contingency reserves established for any litigation liabilities.
12.11. Subsequent Events
On October 4, 2017,April 30, 2018, the Company entered into an Asset Purchase Agreement (the “Agreement”) with Envisia Therapeutics Inc. (“Envisia”) to acquireannounced the rights to use PRINTcommercial launch of Rhopressa® technology in ophthalmology, as well as rights relatingthe United States. The Company hired a commercial team that includes approximately 100 sales representatives to ENV1105, Envisia’s preclinical dexamethasone steroid product candidate fortarget approximately 14,000 high prescribing eye care professionals throughout the treatment of diabetic macular edema, which also utilizes the PRINTUnited States. Rhopressa® technology. Underis now in national and regional U.S. pharmaceutical distributors, and patients have access to Rhopressa® through pharmacies across the termsUnited States. As a result, Aerie commenced generating product revenues related to sales of the Agreement, the Company (a) made an upfront cash payment of $10.5 million and issued 263,146 shares of Aerie’s common stock valued at approximately $14.3 million and (b) agreed to make contingent milestone payments, subject to achievement of certain product regulatory approvals. Under the provisions of ASU 2017-01, the Company expects to account for the transaction as an asset acquisition and expects that substantially all of the purchase price will be allocated to acquired in-process research and development and expensed as research and developmentRhopressa® in the consolidated statementsecond quarter of operations and comprehensive loss during the three months ended December 31, 2017.2018. Rhopressa® is a once-daily eye drop designed to

reduce elevated IOP in patients with open-angle glaucoma or ocular hypertension that received FDA approval on December 18, 2017.

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations
The following management’s discussion and analysis should be read in conjunction with our unaudited condensed consolidated financial statements and related notes that appear elsewhere in this report and with our audited financial statements and related notes and management’s discussion and analysis of financial condition and results of operations included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2016,2017, as filed with the SEC on March 9, 1, 2018 (“2017 (“2016 Form 10-K”). This discussion and analysis contains forward-looking statements that involve risks and uncertainties. Please see “Special Note Regarding Forward-Looking Statements” for additional factors relating to such statements, and see “Risk Factors” in our 20162017 Form 10-K and other documents we have filed or furnished with the SEC for a discussion of certain risk factors applicable to our business, financial condition and results of operations. Past operating results are not necessarily indicative of operating results in any future periods.
Overview
We are a clinical-stagean ophthalmic pharmaceutical company focused on the discovery, development and commercialization of first-in-class therapies for the treatment of patients with open-angle glaucoma and other diseases of the eye. Our strategy is to advancecommercialize our U.S. Food and Drug Administration (“FDA”) approved product, candidates, RhopressaTM® (netarsudil ophthalmic solution) 0.02% (“RhopressaTM®”), in North American markets and advance our product candidate, RoclatanTM (netarsudil/(netarsudil/latanoprost ophthalmic solution) 0.02%/0.005% (“RoclatanTM”), to regulatory approvalapproval. We launched Rhopressa® in the United States at the end of April 2018. Rhopressa® is now in national and commercialize these products ourselvesregional U.S. pharmaceutical distributors, and patients have access to Rhopressa® through pharmacies across the United States. We expect to execute formulary contracts to enable commercial insurance coverage in North American markets. If approved, we plan to build2018 and Medicare Part D program coverage in 2019. We expect preferred formulary coverage for the majority of commercial plans by the end of 2018, and preferred formulary coverage for the majority of Medicare Part D plans commencing in 2019. We hired a commercial team that will includeincludes approximately 100 sales representatives to target approximately 12,00014,000 high prescribing eye-careeye care professionals throughout the United States. This sales force is responsible for sales of Rhopressa®, and will also be responsible for sales of RoclatanTM, if approved.
We are also enhancingseek to enhance our longer-term commercial potential by identifying and advancing additional product candidates and drug delivery technologies, includingcandidates. This may be accomplished through our internal discovery efforts, andour entry into potential research collaborations or in-licensing arrangements or acquisitionsour acquisition of additional ophthalmic products or technologies or product candidates that would complement our current product portfolio, includingsuch as our recent collaboration with DSM, a global science-based company headquartered in the Netherlands, whereby we have access to their bio-erodible polymer technology, and our acquisition of assets from Envisia Therapeutics Inc. (“Envisia”), designed to advance our progress in developing potential future product candidates to treat retinal diseases, as discussed below.
Our strategy also includes developing our business outside of North America, including obtaining regulatory approval in Europe and Japan on our own for Rhopressa® and RoclatanTM. If we obtain regulatory approval, we currently expect to commercialize Rhopressa® and RoclatanTM in Europe on our product candidates. In 2015, we revised our corporate structure to align with our business strategy outside of North America by establishing Aerie Pharmaceuticals Limited, a wholly-owned subsidiary (“Aerie Limited”),own, and Aerie Pharmaceuticals Ireland Limited, a wholly-owned subsidiary (“Aerie Ireland Limited”). We assigned the beneficial rights to our non-U.S. and non-Canadian intellectual propertylikely partner for our lead product candidates to Aerie Limited (the “IP Assignment”). As part of the IP Assignment, we and Aerie Limited entered into a research and development cost-sharing agreement pursuant to which we and Aerie Limited will share the costs of the development of intellectual property and Aerie Limited and Aerie Ireland Limited entered into a license arrangement pursuant to which Aerie Ireland Limited will develop and commercialize the beneficial rights of the intellectual property assigned as part of the IP Assignment. In 2016, we assigned the beneficial rights to certain of our intellectual propertycommercialization in the U.S. and Canada to Aerie Distribution, Inc., a wholly-owned subsidiary (“Aerie Distribution”), and amended and restated the research and development cost-sharing agreement to transfer our rights and obligations under the agreement to Aerie Distribution.Japan.
In January 2017, we announced that we are building a new manufacturing plant in Athlone, Ireland. This will be our first manufacturing plant, which is expected to produce commercial supplies of Rhopressa® and, if approved, RoclatanTM. Commercial supply from our Ireland although wemanufacturing plant is expected to be available by 2020. We will continue to use product sourced from our current contract manufacturer based in the U.S. This will be our first manufacturing plant, expected to produceUnited States. Our current contract manufacturer started producing commercial suppliessupply of our current product candidates, RhopressaTM® and RoclatanTM. If we obtain regulatory approval, commercial product supply from the plant is expected to be available by 2020.in 2017. We are also in the process of adding a second contract manufacturer, which we expect tomay produce commercial supply by as early as the end of 2018.
Product Candidate Overview
Our two advanced-stage product candidates are designed to lower intraocular pressure (“IOP”) in patients with open-angle glaucoma or ocular hypertension. Both product candidates are taken once-daily in the evening and have shown in preclinical and clinical trials to be effective in lowering IOP, with novel mechanisms of action (“MOAs”) and a favorable safety profile.
We own the worldwide rights to all indications for our current Aerie product candidates.Rhopressa® and RoclatanTM. We have patent protection for Rhopressa® and RoclatanTM in the United States through at least 2030 and internationally, through dates ranging from 2030 to 2037. Our intellectual property portfolio contains patents and pending patent applications related to composition of matter, pharmaceutical compositions, methods of use, and synthetic methods. We have patent protection for our current product candidates, RhopressaTM
Product and RoclatanTM, in the United States through at least 2030.Product Candidate Overview
RhopressaTM

Our first product candidate, RhopressaTM®,is a novel once-daily eye drop designed to lower IOP in patients with glaucoma or ocular hypertension. We are developing RhopressaTM as our product approved by the FDA, represents the first of a new drug class of compounds that is designed to lower IOP in patients through novel MOAs. We believe that, if approved, RhopressaTM will represent the first new MOAs for lowering IOPreducing intraocular pressure (“IOP”) in patients with glaucoma in over 20 years. Rhopressa® has demonstrated that it reduces IOP through Rho kinase (“ROCK”) inhibition, its mechanism of action (“MOA”), by which Rhopressa® increases the outflow of aqueous humor through the trabecular meshwork (“TM”), which accounts for approximately 80% of fluid drainage from a healthy eye. Our late-stage pipeline consists of RoclatanTM, a single-drop fixed-dose combination of Rhopressa® and latanoprost, which reduces IOP through the same MOA as Rhopressa®, along with a second MOA that utilizes the ability of latanoprost to increase the

outflow of aqueous humor through the uveoscleral pathway, the eye’s secondary drain. Both are taken once-daily in the evening and have shown in preclinical and clinical trials to be effective in reducing IOP, with a favorable safety profile.
Rhopressa®
Rhopressa® is a once-daily eye drop designed to reduce elevated IOP in patients with open-angle glaucoma or ocular hypertension. Rhopressa® received approval from the FDA on December 18, 2017, two months earlier than the scheduled Prescription Drug User Fee Act date of February 28, 2018. The active ingredient in Rhopressa®, netarsudil, is a ROCK inhibitor. Based on preclinical studies and clinical data, to date, we expect that RhopressaTM®, if approved, will have the potential to compete with non-prostaglandin analoguenon-PGA (prostaglandin analog) products as a preferred adjunctive therapy to prostaglandin analogues (“PGAs”),PGAs, due to its targeting of the diseased tissue known as the trabecular meshwork (“TM”),TM, its demonstrated IOP-lowering ability to reduce IOP at consistent levels across tested baselines, withand its preferred once-daily dosing its potential synergistic effect with PGA products, and its lack of drug-related serious or systemic adverse events.relative to currently marketed non-PGA products. Adjunctive therapies currently represent approximatelynearly one-half of the entire glaucoma therapyprescription market in the United States, according to IMS. In addition, if approved, weIQVIA (formerly known as IMS Health). We believe that RhopressaTM® may also potentially become a preferred therapy where PGAs are contraindicated, for patients who do not respond to PGAs and for patients who choose to avoid the cosmetic issues associated with PGA products. Also, in a 24-hour, 12-patient pilot study comparing RhopressaTM efficacy to that of placebo, RhopressaTM demonstrated similar levels of IOP lowering during nocturnal and diurnal periods. This is potentially a further differentiating feature of RhopressaTM when considering that currently marketed products have demonstrated little or no efficacy at night and eye pressure is typically highest when patients are asleep.
We resubmittedRocket 4, one of our New Drug Application (“NDA”) with the U.S. Food and Drug Administration (“FDA”)Phase 3 registration trials for RhopressaTMon February 28, 2017. Our initial submission, announced in September 2016, was withdrawn as a result of a contract manufacturer of our drug product not being prepared for pre-approval inspection by the FDA. The NDA submission included our second Phase 3 registration trial for RhopressaTM®, named “Rocket 2,” as the pivotal clinical trial and our initial Phase 3 registration trial, named “Rocket 1,” as supportive in nature. Our Rocket 2 trial achieved its primary efficacy endpoint of demonstrating non-inferiority of RhopressaTM compared to timolol. In addition, the 12-month safety data from this registration trial also confirmed a favorable safety profile for the drug and demonstrated a consistent IOP-lowering effect throughout the 12-month period at the specified measurement time points. We also included as supportive data the 90-day efficacy results of our Rocket 4 and Mercury 1 trials, each as further discussed below, with the NDA submission for RhopressaTM.
Our fourth Phase 3 registration trial for RhopressaTM, named “Rocket 4,” in the U.S., was designed to generate adequate six-month safety data for European regulatory approval, for which we expect to file in the second half of 2018. The six-monthalong with efficacy and safety and efficacy data were largely consistent with observations in thefrom our other RhopressaTM Phase 3 registration trials and the 90-day efficacy results achieved the primary efficacy endpoint of demonstrating non-inferiority of RhopressaTM compared to timolol. A third Phase 3 registration trial for RhopressaTM, named “Rocket 3,” was a 12-month safety-only study in Canada. We have commenced Phase 1 and 2 clinical trial activities in the United States relating to pursuing regulatory approval of RhopressaTM in Japan, and expect to initiate the clinical trials in the fourth quarter of 2017.
The RhopressaTM Phase 3 registration trial results have shown minimal drug-related serious adverse events or drug-related systemic adverse events, with the most common adverse event reported being conjunctival hyperemia, or eye redness, with incidence rates of approximately 50% across all Phase 3 registration trials for RhopressaTM®, the majority of which was reported as mild.
On October 13, 2017, the FDA held an advisory committee meetingRocket 1 and Rocket 2. We expect to discuss thefile a marketing authorization application (“MAA”) for RhopressaTM® NDA. The advisory committee votedwith the European Medicines Agency (“EMA”) in favorthe second half of 2018. We also completed a Phase 1 clinical trial and commenced a Phase 2 clinical trial in the United States, which are designed to meet the requirements of Japan’s Pharmaceuticals and Medical Devices Agency for potential regulatory submission of RhopressaTM ®regarding (a) whether the in Japan. These clinical trials supported the efficacy of RhopressaTM for reducing elevated IOPinclude Japanese and Japanese-American subjects to support subsequent Phase 3 registration trials that are expected to be conducted in patients with open-angle glaucoma or ocular hypertension and (b) whether the efficacy outweighs the safety risk. The FDA is not bound by the advice of the advisory committee, but takes the advice into consideration when reviewing investigational medicines. The Prescription Drug User Fee Act (“PDUFA”) goal date for the completion of the FDA’s review of the RhopressaTM NDA is set for February 28, 2018, which reflects a standard 12-month review period.Japan.
RoclatanTM 
Our secondadvanced-stage product candidate, is once-daily RoclatanTM, is a once-daily fixed-dose combination of RhopressaTM® and latanoprost. We believe, based on our preclinical studies and clinical trials to date,data, that RoclatanTM, if approved, will be the only glaucoma product that covers the full spectrum of currently known IOP-lowering MOAs, giving it has the potential to provide a greater IOP-loweringIOP-reducing effect than any currently marketed glaucoma product.medication. Therefore, we believe that RoclatanTM, if approved, could compete with both PGA and non-PGA therapies and become the product of choice for patients requiring maximal IOP lowering,reduction, including those with higher IOPs and those who present with significant disease progression despite use of currently available therapies.

We recentlyhave completed two Phase 3 registration trials for RoclatanTM. The first Phase 3 registration trial for RoclatanTM, named “Mercury 1,” was a 12-month safety trial with a 90-day efficacy readout. Mercury 1 achieved its primary efficacy endpoint of demonstrating statistical superiority of RoclatanTM to each of its components. Thecomponents, including Rhopressa® and the market-leading PGA, latanoprost, and the safety and tolerability results for RoclatanTM from the 90-day efficacy period of Mercury 1 showed no drug-related serious adverse events or drug-related systemic adverse events. On July 19, 2017, we announced the results of the Mercury 1 12-month safety study,results, noting the safety results for RoclatanTM for the 12-month period were consistent with those observed for the 90-day efficacy period.showed no treatment-related serious adverse events and minimal evidence of treatment-related systemic effects. There were no new adverse events that developed over the 12-month period relative to the 90-day results, and there were no drug-related serious or systemic adverse events.
The second Phase 3 registration trial for RoclatanTM, named “Mercury 2,” was a 90-day efficacy and safety trial also designed to demonstrate statistical superiority of RoclatanTM to each of its components. The Mercury 2 trial design was identical to that of Mercury 1, except that Mercury 2 was a 90-day trial without the additional nine-month safety extension included in Mercury 1. Both Mercury 1 and Mercury 2 achieved their 90-day primary efficacy endpoints of demonstrating statistical superiority over each of its components, including RhopressaTM and market-leading PGA, latanoprost, at all measured time points. The superiority of RoclatanTM over each of its components was consistentlyat all measured time points in the rangepatients with maximum baseline IOPs of 1above 20 mmHg to 3 mmHg (millimeters of mercury).below 36 mmHg. We are permittedexpect to submit thea New Drug Application (“NDA”) for RoclatanTM NDA whileto the RhopressaTM NDA is still being reviewed by the FDA. We expect to submit an NDA for RoclatanTMFDA in the second quarter of 2018.
Mercury 1 and Mercury 2 will also be used for European approval of RoclatanTM, and we initiated a third Phase 3 registration trial for RoclatanTM, named “Mercury 3,” in Europe during the third quarter of 2017. Mercury 3, a six-month safety trial, is designed to compare RoclatanTM to Ganfort®, a fixed-dose combination product of bimatoprost, a PGA, and timolol marketed in Europe, which ifEurope. If successful, Mercury 3 is expected to improve our commercialization prospects in that region.Europe. We currently expect to read out topline 90-day efficacy data for the trial in 2019 and to submit an MAA with the EMA for RoclatanTM thereafter.
Pipeline Opportunities
Our stated objective is to build a major ophthalmic pharmaceutical company. In addition to our primary product candidates, RhopressaTM and RoclatanTM, we plan to continue exploring the benefits of RhopressaTM on 24-hour IOP lowering, normal tension glaucoma, as well antifibrotic effects on the diseased TM. We are also evaluating possible uses of our existing proprietary portfolio of Rho kinaseROCK inhibitors beyond glaucoma.glaucoma and ophthalmology. Our owned preclinical small molecule, AR-13154,AR-13503, has demonstrated the potential for the treatment of diabetic retinopathy and wet age-related macular degeneration (“AMD”) by inhibiting Rho kinaseROCK and Protein kinase C andC. AR-13503 has shown lesion size decreases in an in

vivo preclinical model of wet AMD at levels similar to the current market-leading wet AMD anti-vascular endothelial growth factor (“anti-VEGF”) product. When used in combination with the market-leading anti-VEGF product, and evenAR-13503 produced greater lesion size reduction in combination withthan the current market-leading wet AMD anti-VEGF product. Further, in our preclinical studies, we have seen a promising potential of this molecule to reduce neovascularizationproduct alone in a model of proliferative diabetic retinopathy. This molecule has not yet been tested in humans in a clinical trial setting. Pending additional studies, the active metabolite of AR-13154 and related moleculesAR-13503 may have the potential to provide an entirely new mechanism and pathway to treat diabetic retinopathy, wet AMD and otherrelated diseases of the retina, such as diabetic macular edema (“DME”). We expect to submit an Investigational New Drug application (“IND”) for AR-13503 in 2019. Since AR-13503 is a small molecule with a short half-life, and the aforementioned diseases are located in the back of the eye, a delivery mechanism is needed to deliver the molecule to the back of the eye for a sustained delivery period.
To that end, on July 31, 2017, we announced that we entered into a collaborative research, development and licensing agreement with DSM. The research collaboration agreement includes an option to license DSM’s bio-erodible polymer implant technology for sustained delivery of certain Aerie compounds to treat ophthalmic diseases. This molecule has not yet been testedtechnology uses polyesteramide polymers to produce an injectable, thin fiber that is minute in humanssize. Preclinical experiments have demonstrated early success in conjunction with AR-13503, including demonstration of linear, sustained elution rates over several months and achievement of target retinal drug concentrations.
Further, on October 4, 2017, we acquired the rights to use PRINT® technology in ophthalmology and certain other assets from Envisia. The PRINT® technology is a clinical trial setting.proprietary system capable of creating precisely-engineered sustained-release products utilizing fully-scalable manufacturing processes. In addition, we acquired Envisia’s intellectual property rights relating to Envisia’s preclinical dexamethasone steroid implant for the potential treatment of DME that also utilizes the PRINT® technology, which we refer to as AR-1105. We expect to submit an IND for AR-1105 near the end of 2018. We will also focus on using PRINT® to manufacture injectable implants containing AR-13503, potentially in conjunction with the bio-erodible polymer from DSM.
We have and may continue to enter into research collaboration arrangements, license, acquire or develop additional product candidates and technologies to broaden our presence in ophthalmology, and we continually explore and discuss potential additional opportunities for new ophthalmic products, delivery alternatives and new therapeutic areas with potential partners. We are also currently focused on the evaluation of technologies for the delivery ofscreening our owned molecules to the frontlibrary of ROCK inhibitors for indications beyond ophthalmology, considering third-party studies and back of the eye over sustained periods.
On July 31, 2017, we announced that we entered into a collaborative research, development and licensing agreement with DSM, a global science-based company headquarteredtrials have demonstrated potential for ROCK inhibition in the Netherlands. The research collaboration agreement includes an option to license DSM’s bio-erodible polymer implant technology for evaluating its application to the delivery oftreating certain Aerie compounds,disease categories. We are initially focused on retinal diseases. This technology uses polyesteramide polymers to produce an injectable, thin fiber that is minuteexploring potential opportunities for our molecules in size. Preclinical experiments have demonstrated early success in conjunction with AR-13154, including demonstration of linear, sustained elution rates over several monthspulmonary health, dermatology and achievement of target retinal drug concentrations.cancers.
On October 4, 2017, we acquired from Envisia the rights to use PRINT® technology in ophthalmology and certain other assets. The PRINT® technology is a proprietary system capable of creating precisely engineered sustained release products utilizing fully-scalable manufacturing processes. Our initial focus will be in using PRINT® to manufacture injectable implants containing AR-13154, potentially in conjunction with the biodegradable polymer from DSM. In addition, we acquired Envisia’s intellectual property rights relating to ENV1105, Envisia’s preclinical dexamethasone steroid product candidate for the treatment of DME, which also utilizes the PRINT® technology.

Financial Overview
Our cash, cash equivalents and investments totaled $282.2$334.0 million as of September 30, 2017March 31, 2018. We believe our cash, cash equivalents and investments balances are currently expectedadequate to provide sufficient resources for our current ongoing needs.needs, though there may be need for additional financing activity as we continue to grow, including the potential use of a line of credit to finance the potential growth in our inventories and accounts receivable now that Rhopressa® is launched in the United States. See “—Liquidity and Capital Resources” below for further discussion.
We have incurred net losses since our inception in June 2005. To date,As a result of the commercial launch of Rhopressa® in the United States in late April 2018, we havecommenced generating product revenues from sales of Rhopressa® in the second quarter of 2018. We will not generatedgenerate any revenue from RoclatanTM or any future product revenue and we do not expect to generate product revenuecandidates unless and until we obtain regulatory approval for and successfully commercialize one or more ofsuch products.
Historically, our current product candidates. Our operations to date havehad primarily been limited to research and development and raising capital. As of September 30, 2017,March 31, 2018, we had an accumulated deficit of $403.2$504.6 million. We recorded net losses of $32.4$40.7 million and $86.6$25.8 million for the three and nine months ended September 30,March 31, 2018 and 2017, respectively. We recorded net losses of $23.8 million and $69.7 million for the three and nine months ended September 30, 2016, respectively. A substantial portion of ourOur capital resources and business efforts are largely focused on completingactivities relating to the developmentcommercialization of Rhopressa®, advancing our product pipeline, international expansion and obtaining regulatory approval and preparing for potential commercialization and manufacturingconstruction of our product candidates. As a result, wemanufacturing facility in Athlone, Ireland. We expect to continue to incur significant operating losses until such a time when one or more of our product candidates areproducts is commercially successful, if at all. If we do not successfully commercialize Rhopressa® or RoclatanTMor any of our currentfuture product candidates, if approved, we may be unable to generate product revenue or achieve profitability. We may be required to obtain further funding through public or private offerings, debt financing, collaboration and licensing arrangements or other sources. Adequate additional funding may not be available to us on acceptable terms, or at all. If we are unable to raise capital when needed or on acceptable terms, we may be forced to delay, reduce or eliminate our research and development programs or commercialization or manufacturing efforts.

Selling, General and Administrative Expenses
Selling, general and administrative expenses consist primarily of salaries, benefits and stock-based compensation for all officers and employees in general management, sales and marketing, manufacturing, finance, and administration. Other significant expenses include pre-approval commercial-related manufacturing costs, pre-launch sales and marketing planning activities, facilities expenses and professional fees for audit, tax, legal and other services.
We expect that our selling, general and administrative expenses will increase withbe higher in 2018 as compared to 2017 due to the continued advancement of our product candidates as we preparecommercialization efforts for potential commercialization. We expect these increases will likely be associated withRhopressa®, including the hiring of sales representatives and additional employees in areas such asfocused on sales, and marketing and medical affairs, along with increased levels of manufacturing activity and overhead expenses associated with the growth of our employee base.activities.
Research and Development Expenses
The following table showsWe expense research and development costs to operations as incurred. Research and development expenses consist primarily of costs incurred for the research and development of our preclinical and clinical candidates, including employee-related expenses for research and development personnel.
Excluding the $24.8 million of expense recognized in 2017 related to the Envisia asset acquisition, we expect that our research and development (“R&D”) expenses will increase in 2018 as compared to 2017 due to clinical trial activities for both Rhopressa® and RoclatanTM for jurisdictions outside of the United States and for research initiatives aimed at advancing our advanced-stage product candidates for the three and nine months ended September 30, 2017 and 2016:
 THREE MONTHS ENDED 
 SEPTEMBER 30,
 NINE MONTHS ENDED 
 SEPTEMBER 30,
 2017 2016 2017 2016
 (in thousands)
RhopressaTM

$1,887
 $3,004
 $4,230
 $10,929
RoclatanTM

1,809
 4,920
 8,160
 12,211
Other research and development activities491
 183
 725
 1,290
Unallocated8,221
 4,581
 20,862
 13,871
Total research and development expense$12,408
 $12,688
 $33,977
 $38,301
We expense R&D costs as incurred. Other research and development activities include direct costs associated with collaboration arrangements and pipeline, activities, including our ongoing preclinical activities. Expenses relating to activities that support more than one development program or activity such as employee-related costs, including stock-based compensation, facilities expensesmolecules and depreciation expense for assets used in R&D are not allocated to specific product or potential product candidates and are separately classified as “unallocated.”

technologies focused on retinal diseases.
Other Income (Expense), Net
Other income (expense) primarily includes investmentinterest income, interest expense, and foreign exchange gains and losses. InvestmentInterest income primarily consists of interest earned on our cash, and cash equivalents and investments, and amortization or accretion of discounts and premiums on our investments. Interest expense consists of interest expense under the 2014 Convertible Notes, including the amortization of debt discounts and issuance costs. Foreign exchange gains and losses are primarily due to the remeasurement of our Euro-denominated liability related to our build-to-suit lease obligation, which is held by a subsidiary with a U.S. dollar functional currency.
Critical Accounting Policies and Use of Estimates
Our management’s discussion and analysis of financial condition and results of operations is based on our condensed consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States or (“U.S. GAAP.GAAP”). The preparation of consolidated financial statements also requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, costs and expenses and related disclosures. We evaluate our estimates and judgments on an ongoing basis. Significant estimates include assumptions used in the determination of accrued expenses, fair value measurements, acquisitions and stock-based compensation and operating expense accruals.compensation. We base our estimates on historical experience and on various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.
Our critical accounting policies and the methodologies and assumptions we apply under themsignificant estimates have not materially changed since the date we filed our 20162017 Form 10-K. For more information on our critical accounting policies and estimates, refer to our 20162017 Form 10-K.


Results of Operations
Comparison of the Three Months Ended September 30,March 31, 2018 and 2017 and 2016
The following table summarizes the results of our operations for the three months ended September 30, 2017March 31, 2018 and 2016:
2017: 
THREE MONTHS ENDED 
 SEPTEMBER 30,
 CHANGE 
%
CHANGE
THREE MONTHS ENDED 
 MARCH 31,
 CHANGE 
%
CHANGE
2017 2016 2018 2017 
(in thousands, except percentages)(in thousands, except percentages)
Selling, general and administrative$19,774
 $10,627
 $9,147
 86 %
Research and development12,408
 12,688
 (280) (2)%
Selling, general and administrative expenses$27,823
 $14,475
 $13,348
 92%
Research and development expenses12,972
 10,954
 2,018
 18%
Total operating expenses32,182
 23,315
 8,867
 38 %40,795
 25,429
 15,366
 60%
Loss from operations(32,182) (23,315) (8,867) 38 %(40,795) (25,429) (15,366) 60%
Other income (expense), net(141) (460) 319
 (69)%96
 (312) 408
 NM
Net loss before income taxes$(32,323) $(23,775) $(8,548) 36 %$(40,699) $(25,741) $(14,958) 58%
       
Selling, general and administrative expenses
Selling, general and administrative expenses increased by $9.1$13.3 million for the three months ended September 30, 2017March 31, 2018 as compared to the three months ended September 30, 2016.March 31, 2017. This increase was primarily associated with the expansion of our employee base and preparatoryto support the growth of our operations as well as expenses incurred in connection with our commercial operations and manufacturing activities. 
launch of Rhopressa®Employee-related expenses increased by $3.6$8.3 million including an increase in salaries and other employee-related expenses of $2.0 millionprimarily due to increased headcount and an increase in stock-based compensation expense of $1.6$2.9 million.

Total costs related to preparatory commercial operations and manufacturing were approximately $4.5 million for the three months ended September 30, 2017, an increase of $2.7 million as compared to the three months ended September 30, 2016, and included scale-up of our current manufacturing activities. Certain of our direct preparatory commercial operations and manufacturing activities are recognized in selling, general and administrative expenses untilsuch time when we determine such costs should be capitalized as saleable inventory. Expenses related to our pre-launch sales and marketing planning activities increased by $1.1$3.2 million for the three months ended September 30, 2017March 31, 2018 as compared to the three months ended September 30, 2016. In addition, professional fees increased by $0.8 million, primarily due to consulting fees for compliance-related activities and legal fees to support the growth of our operations.March 31, 2017.
Research and development expenses
Research and development expenses decreasedincreased by $0.3$2.0 million for the three months ended September 30, 2017March 31, 2018 as compared to the three months ended September 30, 2016. During the three months ended September 30, 2016, our researchMarch 31, 2017. This increase is primarily comprised of an increase of $2.5 million of employee-related expenses, including stock-based compensation, and development activity was primarily associated with Phase 3 registration trials for RhopressaTM andan increase of $0.7 million related to preclinical programs, partially offset by a $2.5 million decrease in expenses related to RoclatanTM. The,as the Phase 3 registration trials for both RhopressaTMthe United States were in process during 2017. These trials were completed prior to December 31, 2017, and we expect to file an NDA for RoclatanTM have been completed for purposeswith the FDA during the second quarter of applying for FDA approval in the U.S. As such, R&D costs2018. Research and development expenses for RoclatanTM and RhopressaTMdecreased by $3.1totaled $0.9 million and $1.1$3.4 million respectively, for the three months ended September 30,March 31, 2018 and 2017, respectively. Research and development expenses for Rhopressa® totaled $1.0 million and $1.2 million for the three months ended March 31, 2018 and 2017, respectively. 
Other income (expense), net
Other income (expense), net consists of the following:
 THREE MONTHS ENDED 
 MARCH 31,
 CHANGE 
%
CHANGE
 2018 2017  
 (in thousands, except percentages)
Interest income$810
 $296
 $514
 NM
Interest expense(507) (597) 90
 (15)%
Other income (expense)(207) (11) (196) NM
 $96
 $(312) $408
  
The change in other income (expense), net for the three months ended March 31, 2018 as compared to the three months ended September 30, 2016. Unallocated expenses increased by $3.6 million primarily driven by increased employee-related expenses, including stock-based compensation.
Comparison of the Nine Months Ended September 30,March 31, 2017 and 2016
The following table summarizes the results of our operations for the nine months ended September 30, 2017 and 2016:
 NINE MONTHS ENDED SEPTEMBER 30, CHANGE 
%
CHANGE
 2017 2016  
 (in thousands, except percentages)
Selling, general and administrative$51,402
 $29,814
 $21,588
 72 %
Research and development33,977
 38,301
 (4,324) (11)%
Total operating expenses85,379
 68,115
 17,264
 25 %
Loss from operations(85,379) (68,115) (17,264) 25 %
Other income (expense), net(1,071) (1,490) 419
 (28)%
Net loss before income taxes

$(86,450) $(69,605) $(16,845) 24 %
        
Selling, general and administrative expenses
Selling, general and administrative expenses increased by $21.6 million for the nine months ended September 30, 2017 as comparedrelates to the nine months ended September 30, 2016. This increase was primarily associated with the expansion of our employee base and preparatory commercial operations and manufacturing activities. 
Employee-related expenses increased by $9.0 million, including an increase in stock-based compensation expense of $4.7 millioninterest income primarily due to the increase in our cash, cash equivalents and investments balances, partially offset by an increase in salaries andunrealized foreign exchange loss included in other employee-related expenses of $4.3 million due to increased headcount.
Expensesexpense related to our preparatory commercial operations and manufacturing activities were approximately $9.3 million for the nine months ended September 30, 2017, an increase of $5.6 million as compared to the nine months ended September 30, 2016, and included scale-upremeasurement of our current manufacturing activities, as discussed above. Our pre-launch sales and marketing planning activities increased $3.2 million for the nine months ended September 30, 2017 as compared to the nine months ended September 30, 2016, and professional fees increasedEuro-denominated build-to-suit lease obligation, which is held by $2.1 million, primarily due to consulting fees for compliance-related activities and legal fees to support the growth of our operations.a subsidiary with a U.S. dollar functional currency.

Research and development expenses
Research and development expenses decreased by $4.3 million for the nine months ended September 30, 2017 as compared to the nine months ended September 30, 2016. During the nine months ended September 30, 2016, our research and development activity was primarily associated with Phase 3 registration trials for RhopressaTM and RoclatanTM. The Phase 3 registration trials for both RhopressaTM and RoclatanTM have been completed for purposes of applying for FDA approval in the U.S. As such, R&D costs for RhopressaTM and RoclatanTMdecreased by $6.7 million and $4.1 million, respectively, for the nine months ended September 30, 2017 as compared to the nine months ended September 30, 2016. Unallocated expenses increased by $7.0 million primarily driven by increased employee-related expenses, including stock-based compensation.
Liquidity and Capital Resources
Since our inception, we have funded operations primarily through the sale of equity securities and the issuance of convertible notes. We have incurred losses and experienced negative operating cash flows since our inception and anticipate that we will continue to incur losses until such a time when one or more of our product candidates areproducts is commercially successful, if at all. We received FDA approval for Rhopressa® on December 18, 2017, and launched Rhopressa® in the United States in late April 2018, and as a result, we commenced generating product revenues related to sales of Rhopressa® in the second quarter of 2018.
Sources of Liquidity
Prior to our initial public offering (“IPO”),During the three months ended March 31, 2018, we raised net cash proceeds of $78.6issued approximately 2.3 million from the private placement of convertible preferred stock and convertible notes. Prior to and in connection with our IPO, all outstanding shares of convertible preferredour common stock, and all convertible notes were converted into shares of common stock. On October 30, 2013, we completed our IPO and raised net proceeds of approximately $68.3 million, after deducting underwriting discounts, fees and expenses.
Since our IPO, we have issued:
$125.0 million aggregate principal amount of senior secured convertible notes (the “2014 Convertible Notes”), for which we received net proceeds of approximately $122.9$136.4 million, after deducting discounts and certain expenses of $2.1 million, and
10.8 million shares of our common stock through September 30, 2017, for which we received net proceeds of approximately $339.5 million, after deducting commissions and other fees and expenses. This includes $195.9approximately $62.3 million raisedof net proceeds from our “at-the-market” sales agreements,agreement (“ATM”) and approximately $74.1 million of which $49.3 million in net proceeds was raised during the nine months ended September 30, 2017. Additionally, we raised net proceeds of $143.6 million from the issuance of shares of our common stock pursuant to an underwriting agreements, of which approximately $72.7 million was raised during the nine months ended September 30, 2017.agreement related to a registered public offering.
As of September 30, 2017,March 31, 2018, our principal sources of liquidity were our cash, cash equivalents and investments, which totaled approximately $282.2$334.0 million.
Cash Flows
The following table summarizes our sources and uses of cash:
 
NINE MONTHS ENDED 
 SEPTEMBER 30,
THREE MONTHS ENDED 
 MARCH 31,
2017 20162018 2017
(in thousands)(in thousands)
Net cash (used in) provided by:      
Operating activities$(67,063) $(60,994)$(40,835) $(24,854)
Investing activities(59,594) 14,015
(41,546) (33,605)
Financing activities122,790
 167,857
134,313
 48
Net change in cash and cash equivalents$(3,867) $120,878
$51,932
 $(58,411)
Operating Activities
During the ninethree months ended September 30,March 31, 2018 and 2017, and 2016, net cash used in operating activities was $67.1$40.8 million and $61.0$24.9 million, respectively. The increase in cash used in operating activities during the ninethree months ended September 30, 2017March 31, 2018 as compared to the ninethree months ended September 30, 2016March 31, 2017 was primarily due to the expansion of our employee base, andas well as an increase in cash used for commercial operations and manufacturing activities in preparation for the launch of RhopressaTM®, assuming FDA approval. This is partially offset by a reduction in expenditures for clinical trials in 2017 compared to 2016..
Investing Activities
During the ninethree months ended September 30, 2017,March 31, 2018, our investing activities used net cash of $59.6$41.5 million primarily related to purchases of available-for-sale investments of $101.2$56.2 million and purchases of fixed assets of $7.1$9.1 million primarily associated withrelated to the build-out of our manufacturing plant in Ireland. These purchases were partially offset by sales and maturities of available-for-sale investments of $48.7$23.8 million. During the ninethree months ended September 30, 2016,March 31, 2017, our investing activities providedused net cash of approximately $14.0$33.6 million primarily related to purchases of available-for-sale investments of $45.6 million partially offset by maturities of available-for-sale investments of $35.4 million, which were partially offset by purchases of available-for-sale investments of $19.9$12.9 million.
Financing Activities
During the ninethree months ended September 30,March 31, 2018 and 2017, and 2016, our financing activities provided net cash of $122.8$134.3 million and $167.9 million,$48.0 thousand, respectively. The net cash provided by financing activities for the ninethree months ended September 30, 2017 and 2016March 31, 2018 was primarily related to the issuance and sale of common stock pursuant to our prior “at-the-market” sales agreementsagreement and underwriting agreement related to a registered public offering, from which we received total net proceeds of approximately $122.0$136.0 million, and $167.4 millionnet of expenses paid during the nineperiod. The net proceeds were partially offset by $1.4 million net cash used for stock-based compensation arrangements, primarily related to taxes paid on employees’ behalf through withholding of shares on restricted stock awards. The net cash provided by financing activities for the three months ended September 30,March 31, 2017 was primarily related to proceeds of $0.7 million from exercises of stock options and 2016, respectively.stock purchase rights under our employee stock

purchase plan, which were offset by taxes paid on employees’ behalf through withholding of shares on restricted stock awards of $0.7 million.
Operating Capital Requirements
We expect to incur ongoing operating losses until such a time when our product candidatesRhopressa®is,or RoclatanTM or any other products that may be approved in the future are, commercially successful, if at all.
Our principal liquidity requirements are for: working capital; future increased operational expenses; pre-commercialization planningcommercialization and manufacturing activities; expenses associated with developing our pipeline opportunities, including pursuing strategic growth opportunities; costs associated with executing our international expansion strategy, to expand intoincluding clinical and potential commercialization activities in Europe and Japan; contractual obligations; capital expenditures, including completing our manufacturing plant in Ireland; and debt service payments.
In January 2017, we entered into a lease agreement for a new manufacturing plant in Ireland under which we are leasing approximately 30,000 square feet of interior floor space for build-out. Estimated project-wide equipment, construction and otherCapital expenditures related project costs are expected to totalthe manufacturing plant totaled approximately $39$15.2 million (excluding ongoing labor-related and lease expenses andduring the potential impact of foreign exchange rate fluctuations), of which approximately $16 million is expected to be spent in 2017.three months ended March 31, 2018. 
We believe that our cash, and cash equivalents and investments as of September 30, 2017March 31, 2018 will provide sufficient resources to support our commercial activities for Rhopressa®through at least the next twelve months and to support the expected approval and planned commercialization of RhopressaTMandRoclatanTMin the U.S.United States.
Our future funding requirements will depend on many factors, including, but not limited to the following:
costs of commercialization activities for Rhopressa® and RoclatanTM and any future product candidates, if approved, including the costs and timing of establishing product sales, marketing, manufacturing and distribution capabilities, and related product sales performance;
commercial performance of Rhopressa® and RoclatanTM or any future product candidates, if approved;
costs, timing and outcome of seeking regulatory approval;
the costs of commercialization activities for our product candidates, if we receive regulatory approval, including the costs and timing of establishing product sales, marketing, manufacturing and distribution capabilities;
the commercial performance of our future product candidates;
timing and costs of our ongoing and future preclinical studies and clinical trials for our product candidates outside of the U.S.;and preclinical studies;
costs to complete our new manufacturing plant in Ireland;
costs of any follow-on development or products, including the exploration and/or development of any additional indications or additional opportunities for new ophthalmic products,product candidates, delivery alternatives and new therapeutic areas;
costs of any new business strategies;
costs of operating as a public company, including legal, compliance, accounting and investor relations expenses;

activities;
terms and timing of any acquisitions, collaborations, licensing, consulting or other arrangements; and
filing and prosecuting patent applications, maintaining and protecting our intellectual property rights and defending against intellectual property related claims.
We based our projections on assumptions that may prove to be incorrect or unreliable or may change due to circumstances beyond our control, and as a result, we may consume our available capital resources earlier than we originally projected. We may need to obtain additional financing to fund our future operations or we may decide, based on various factors, that additional financings are desirable. If such funding is required, we cannot guarantee that it will be available to us on favorable terms, if at all.
Outstanding Indebtedness
As of September 30, 2017,March 31, 2018, our total indebtedness consisted of our $125.0 million aggregate principal amount of 2014 Convertible Notes, which are due in September 2021.Notes. For a discussion of the 2014 Convertible Notes, see Note 7 to our condensed consolidated financial statements included in this report.

Contractual Obligations and Commitments
The following table summarizesThere have been no material changes to our contractual obligations at September 30, 2017:and commitments as included in our 2017 Form 10-K.
 TOTAL 
LESS THAN
1 YEAR
 1 TO 3 YEARS 3 TO 5 YEARS 
MORE THAN
5 YEARS
(in thousands) 
Lease obligations(1)
$14,620
 $2,478
 $5,946
 $3,896
 $2,300
2014 Convertible Notes(2)
125,000
 
 
 125,000
 
 $139,620
 $2,478
 $5,946
 $128,896
 $2,300

(1)Our lease obligations are primarily related to our principal executive office in Irvine, California, corporate offices in Bedminster, New Jersey, and Dublin, Ireland, and our research facility in Durham, North Carolina. Additionally, in January 2017, we entered into a lease agreement for a new manufacturing plant in Athlone, Ireland, under which we are leasing approximately 30,000 square feet of interior floor space for build-out. We are permitted to terminate the lease agreement beginning in September 2027. Obligations denominated in foreign currencies have been translated to U.S. dollars at the foreign exchange rates in effect at September 30, 2017.
(2)On September 30, 2014, we issued the 2014 Convertible Notes, which mature on the seventh anniversary from the date of issuance, unless earlier converted. Refer to Note 7 to our condensed consolidated financial statements included in this report for further information.

In October 2017, we entered into an Asset Purchase Agreement (the “Agreement”) with Envisia pursuant to which we made an upfront cash payment of $10.5 million and issued 263,146 shares of Aerie’s common stock valued at approximately $14.3 million. Under the terms of the Agreement, we may also be required to make additional milestone payments contingent upon the achievement of regulatory approval. Contingent milestone payments are excluded from the table above as the timing in which we may be required to make such payments in the future, if at all, is highly uncertain. We have no other contractual obligations or commitments that are not subject to our existing financial statement accrual processes.
Off-Balance Sheet Arrangements
We did not have during the periods presented, and we do not currently have, any off-balance sheet arrangements as defined under SEC rules.

Jumpstart Our Business Startups Act of 2012
The Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”) provides that an emerging growth company can take advantage of certain exemptions from various reporting and other requirements that are applicable to public companies that are not emerging growth companies. We currently take advantage of some, but not all, of the reduced regulatory and reporting requirements that are available to us for as long as we qualify as an emerging growth company. We have irrevocably elected under Section 107 of the JOBS Act not to take advantage of the extension of time to comply with new or revised financial accounting standards available under Section 102(b) of the JOBS Act and, therefore, we will be subject to the same new or revised accounting standards as other public companies that are not emerging growth companies. Our independent registered public accounting firm will not be required to provide an attestation report on the effectiveness of our internal control over financial reporting for as long as we qualify as an emerging growth company.
We may take advantage of these exemptions until we are no longer an “emerging growth company.” We would cease to be an “emerging growth company” upon the earliest of: (i) December 31, 2018; (ii) the last day of the first fiscal year in which our annual gross revenues are $1.07 billion or more; (iii) the date on which we have, during the previous three-year period, issued more than $1 billion in non-convertible debt securities; or (iv) as of the end of any fiscal year in which the market value of our common stock held by non-affiliates exceeded $700 million as of the end of the second quarter of that fiscal year.
Since the market value of our common stock held by non-affiliates exceeded $700 million as of June 30, 2017, as of the year ending December 31, 2017, we will cease to be an “emerging growth company.” As a result, beginning with our Annual Report on Form 10-K for the year ending December 31, 2017, we will be subject to Section 404(b) of the Sarbanes-Oxley Act, which requires that our independent registered public accounting firm provide an attestation report on the effectiveness of our internal control over financial reporting.
Recent Accounting Pronouncements
For a discussion of recently issued accounting standards, see Note 2 to our condensed consolidated financial statements included in this report.
Item 3. Quantitative and Qualitative Disclosures about Market Risk
We have market risk exposure to interest income sensitivity, which is affected by changes in the general level of U.S. interest rates. Our cash and cash equivalents as of September 30, 2017,March 31, 2018 totaled $194.1 million and consisted of cash and money market funds.$249.5 million. Our investments totaled $88.2$84.5 million as of September 30, 2017March 31, 2018 and consisted of commercial paper and corporate bonds. We had cash, cash equivalents and investments of $233.7$249.7 million as of December 31, 2016.2017. Given the short-term nature of our cash, cash equivalents and investments and our investment policy, a sudden change in market interest rates would not be expected to have a material impact on our financial condition or results of operations. We do not engage in any hedging activities against changes in interest rates. The 2014 Convertible Notes carry a fixed interest rate and, as such, are not subject to interest rate risk.
Aerie will facefaces market risks attributable to fluctuations in foreign currency exchange rates and exposure on the remeasurement of foreign currency-denominated monetary assets or liabilities into U.S. dollars. In particular, our operations and subsidiary in Ireland may enter into certain obligations or transactions in Euros or other foreign currencies, but has a U.S. dollar functional currency. We currently do not have any derivative instruments or a foreign currency hedging program. To date and during the ninethree months ended September 30, 2017,March 31, 2018, foreign currency exposure and foreign currency financial instruments have not been material.

Item 4. Controls and Procedures
Evaluation of Disclosure Controls and Procedures
Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of our disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15(d)-15(e)), as of the end of the period covered by this report. Based upon the evaluation, the Chief Executive Officer and Chief Financial Officer concluded that, as of September 30, 2017,March 31, 2018, the disclosure controls and procedures were effective to provide reasonable assurance that information required to be disclosed in the reports we file and submit under the Exchange Act is (i) recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms and (ii) accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure. In designing and evaluating our disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives, and management necessarily applies its judgment in evaluating the benefits of possible controls and procedures relative to their costs.
Changes in Internal Control Over Financial Reporting
There have been no significant changes in our internal control over financial reporting during our most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

PART II. OTHER INFORMATION
Item 1. Legal Proceedings
We may periodically become subject to legal proceedings and claims arising in connection with our business. WeExcept as previously disclosed for matters which have now concluded, we are not a party to any known litigation, are not aware of any unasserted claims and do not have contingency reserves established for any litigation liabilities.
Item 1A. Risk Factors
You should consider carefully the risks described below and set forth under “Risk Factors” in our 20162017 Form 10-K, and other documents that we have filed or furnished with the SEC.
As of December 31, 2017, we will There have been no longer be an “emerging growth company” and, as a result, we will havematerial changes to comply with increased disclosure and governance requirements.
As a result of the significant increase in our market capitalization as of June 30, 2017, we will cease to be an “emerging growth company” as defined in the JOBS Act as of December 31, 2017. We will, as of December 31, 2017, be a large accelerated filer and, as such, will be subject to certain requirements that apply to other public companies but did not previously apply to us due to our status as an emerging growth company. These requirements include:
the provisions of Section 404(b) of the Sarbanes-Oxley Act requiring that our independent registered public accounting firm provide an attestation report on the effectiveness of our internal control over financial reporting;
the requirement to provide detailed compensation discussion and analysis in proxy statements and reports filed under the Exchange Act; and
the “say on pay” provisions (requiring a non-binding stockholder vote to approve compensation of certain executive officers) and the “say on golden parachute” provisions (requiring a non-binding stockholder vote to approve golden parachute arrangements for certain executive officers in connection with mergers and certain other business combinations) of the Dodd-Frank Act and some of the disclosure requirements of the Dodd-Frank Act relating to compensation of its chief executive officer.
Beginning with our Annual Report on Form 10-K for the year ending December 31, 2017, we will be subject to Section 404(b) of the Sarbanes-Oxley Act, which requires that our independent registered public accounting firm provide an attestation report on the effectiveness of our internal control over financial reporting. Compliance with Section 404 will be expensive and time consuming for management and could result in the detection of internal control deficiencies of which we are currently unaware. Moreover, if we have a material weakness in our internal controls over financial reporting, we may not detect errors on a timely basis, and our financial statements may be materially misstated. We or our independent registered public accounting firm may not be able to conclude on an ongoing basis that we have effective internal controls over financial reporting, which could harm our operating results, cause investors to lose confidence in our reported financial information and cause the trading price of our common stock to fall. We expect that the loss of “emerging growth company” status and compliance with the additional requirements will substantially increase our legal and financial compliance costs and make some activities more time consuming and costly.these risk factors.
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds
Unregistered Sales of Equity Securities
None.We did not have any sales of unregistered equity securities during the three months ended March 31, 2018.
Use of Proceeds from Registered Securities
On November 3, 2014, we filed a shelf registration statement on Form S-3 (the “2014 Registration Statement”) that permitted the offering, issuance and sale by us of up to a maximum aggregate offering price of $150.0 million of our common stock and permits sales of common stock by certain selling stockholders.

On September 15, 2016, we filed a shelf registration statement on Form S-3 (Registration No. 333-213643), which was effective on September 15, 2016.(the “2016 Registration Statement”). The shelf registration statement2016 Registration Statement permits the offering, issuance and sale by us of our common stock. In addition, on May 25,On December 19, 2017, we filed a prospectus supplement to the base prospectus dated September 15, 2016 (the “2017 Prospectus Supplement”). The prospectus supplement permits, which permitted the offering, issuance and sale by us of up to a maximum aggregate offering price of $50.0$75.0 million of our common stock.
From November 10, 2014 through September 30, 2017, we issued and sold 6,840,570 shares of common stock under ourpursuant to an “at-the-market” sales agreements, of which 906,858agreement.
The ATM commenced in December 2017 and during the three months ended March 31, 2018, approximately 1.0 million shares were issued and sold duringunder the nine months ended September 30, 2017,ATM, and we received net proceeds of approximately $195.9$62.3 million, of which $49.3 million were received during the nine months ended September 30, 2017, in each case, after deducting commissions and other fees and expenses. Sales under theThe “at-the-market” sales agreements were made pursuant to the 2014 Registration Statement, the prospectus supplement (the “2016 Prospectus Supplement”), dated September 15, 2016, to the base prospectus dated September 15, 2016 and theoffering that commenced on December 19, 2017 Prospectus Supplement. As of September 30, 2017,was completed in January 2018. There are no remaining shares remain available for issuance under the 2014 Registration Statement, the 2016 Prospectus Supplement or the 2017 Prospectus Supplement.
Any remaining net proceeds from these sales are held as cash deposits and in a variety of capital preservation investments, including short-term, investment-grade, interest-bearing instruments and U.S. government securities.
Item 3. Defaults Upon Senior Securities
None.
Item 4. Mine Safety Disclosures
None.
Item 5. Other Information
None.

Item 6. Exhibits
*Filed herewith.
**Furnished herewith.
***Attached as Exhibit 101 to this report are the following formatted in XBRL (Extensible Business Reporting Language):
 (i) Condensed Consolidated Balance Sheets at September 30, 2017March 31, 2018 and December 31, 20162017 (unaudited), (ii) Condensed Consolidated Statements of Operations and Comprehensive Loss for the three and nine months ended September 30,March 31, 2018 and 2017 and 2016 (unaudited), (iii) Condensed Consolidated Statements of Cash Flows for the ninethree months ended September 30,March 31, 2018 and 2017 and 2016 (unaudited) and (iv) Notes to Condensed Consolidated Financial Statements (unaudited).
***Furnished herewith.






SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
 
     
    AERIE PHARMACEUTICALS, INC.
   
Date: NovemberMay 9, 20172018   /s/ RICHARD J. RUBINO
    Richard J. Rubino
    Chief Financial Officer
    (Principal Financial and Accounting Officer)






3026