UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
Date of report (Date of earliest event reported): March 1, 2018
NEKTAR THERAPEUTICS
(Exact Name of Registrant as Specified in Charter)
Delaware | 0-24006 | 94-3134940 | ||||
(State or Other Jurisdiction of Incorporation) |
(Commission File Number) |
(IRS Employer Identification No.) | ||||
455 Mission Bay Boulevard South
San Francisco, California 94158
(Address of Principal Executive Offices and Zip Code)
Registrant’s telephone number, including area code: (415) 482-5300
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) |
☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) |
☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |
☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) |
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02 | Results of Operations and Financial Condition. |
On March 1, 2018, Nektar Therapeutics, a Delaware corporation (“Nektar”), issued a press release (the “Press Release”) announcing its financial results for the quarter and year ended December 31, 2017. A copy of the Press Release is furnished herewith as Exhibit 99.1.
On February 21, 2018, Nektar announced that it would hold a Webcast conference call on March 1, 2018 to review its financial results for the quarter and year ended December 31, 2017. This conference call is accessible through a link that is posted on the home page and Investors section of the Nektar website: http://www.nektar.com.
The information in this report, including the exhibit hereto, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended. The information contained herein and in the accompanying exhibit shall not be incorporated by reference into any filing with the Securities and Exchange Commission made by Nektar Therapeutics, whether made before or after the date hereof, regardless of any general incorporation language in such filing.
Item 9.01 | Financial Statements and Exhibits. |
Exhibit No. |
Description | |
99.1 | Press release titled “Nektar Therapeutics Reports Fourth Quarter and Year-End 2017 Financial Results” issued by Nektar Therapeutics on March 1, 2018. |
SIGNATURES
Pursuant to the requirement 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.
By: | /s/ Mark A. Wilson | |
Mark A. Wilson | ||
General Counsel and Secretary | ||
Date: | March 1, 2018 |
Exhibit 99.1
Nektar Therapeutics Reports Fourth Quarter and Year-End 2017 Financial Results
SAN FRANCISCO, March 1, 2018 /PRNewswire/ -- Nektar Therapeutics (Nasdaq: NKTR) today reported its financial results for the fourth quarter and year ended December 31, 2017.
Cash and investments in marketable securities at December 31, 2017 were $353.2 million as compared to $389.1 million at December 31, 2016. This does not include $1.85 billion in upfront payments from the new Bristol-Myers Squibb collaboration, which was announced on February 14, 2018.
“This past year was truly transformational for Nektar as we achieved a number of successes with Nektar medicines across our three key therapeutic areas of immuno-oncology, immunology and pain,” said Howard W. Robin, President and Chief Executive Officer of Nektar. “In the area of pain, we completed a successful Phase 3 program for NKTR-181 in over 2,100 patients and healthy volunteers that will comprise our NDA submission in the second quarter of this year. In immunology, we entered into a major partnership with Eli Lilly for NKTR-358, a potential first-in-class T regulatory resolution therapeutic, which will be developed to treat a broad range of auto-immune disorders. Finally, in immuno-oncology, the clinical success we achieved with NKTR-214 led to a groundbreaking collaboration with Bristol-Myers Squibb that now enables us to broadly and rapidly advance NKTR-214 into over 20 registrational trials in up to 15,000 patients.”
Summary of Financial Results
Revenue for the fourth quarter of 2017 was $95.5 million as compared to $37.5 million in the fourth quarter of 2016. Revenue in the fourth quarter of 2017 included a total of $60.0 million of non-recurring revenue related to a new sublicense agreement, a contract settlement agreement and the recognition of deferred revenue from several collaboration agreements.
Revenue for the year ended December 31, 2017 was $307.7 million as compared to $165.4 million in 2016. Revenue in 2017 included recognition of $130.1 million of the $150.0 million upfront payment from Nektar’s collaboration with Eli Lilly & Company for the development and commercialization of NKTR-358.
Total operating costs and expenses in the fourth quarter of 2017 were $119.5 million as compared to $69.6 million in the fourth quarter of 2016. Total operating costs and expenses increased primarily as a result of higher research and development (R&D) expense. Total operating costs and expenses for the year ended December 31, 2017 were $367.4 million as compared to $278.3 million in 2016.
R&D expense in the fourth quarter of 2017 was $81.4 million as compared to $50.2 million for the fourth quarter of 2016. R&D expense for the year ended December 31, 2017 was $268.5 million as compared to $203.8 million in 2016. R&D expense was higher in 2017 as compared to 2016 primarily because of expenses for our pipeline programs, including the completion of Phase 3 clinical studies for NKTR-181, Phase 1/2 clinical studies of NKTR-214 and NKTR-358, and IND-enabling activities for NKTR-262 and NKTR-255.
General and administrative (G&A) expense was $12.3 million in the fourth quarter of 2017 as compared to $12.8 million in the fourth quarter of 2016. G&A expense for the year ended December 31, 2017 was $52.4 million as compared to $44.3 million in 2016.
Net loss for the fourth quarter of 2017 was $33.8 million or $0.21 loss per share as compared to a net loss of $42.2 million or $0.28 loss per share in the fourth quarter of 2016. Net loss for the year ended December 31, 2017 was $96.7 million or $0.62 loss per share as compared to a net loss of $153.5 million or $1.10 loss per share in 2016.
2017 and Year-to-Date Business Highlights
● | In February 2018, Nektar and Bristol-Myers Squibb entered into a global development and commercialization agreement to evaluate the full potential of NKTR-214 plus Opdivo® (nivolumab) in more than 20 indications in 9 tumor types including melanoma, renal cell carcinoma, non-small cell lung cancer, bladder and triple negative breast cancer. The first pivotal studies in melanoma and renal cell carcinoma are expected to be initiated in mid-2018. |
● | In December 2017, Nektar submitted an Investigational New Drug (IND) application to the U.S. Food and Drug Administration (FDA) for NKTR-262, a small molecule agonist that targets toll-like receptors (TLRs) found on innate immune cells in the body. The REVEAL Phase 1/2 study will evaluate the safety, tolerability and anti-tumor effect of NKTR-262, administered in combination with NKTR-214 (doublet) and in combination with NKTR-214 and nivolumab (triplet), in patients with locally advanced or metastatic cancers. The company plans to enroll the first patients in the REVEAL study in March of 2018. |
● | In November 2017, Nektar announced positive data from the dose-escalation stage of the PIVOT-02 study of NKTR-214 in combination with Opdivo at the 2017 SITC conference. Results showed compelling response rates and favorable safety data in both PD-L1 negative and PD-L1 positive patients with melanoma, renal cell carcinoma and non-small cell lung cancer. |
● | In September 2017, Nektar initiated the PROPEL clinical study to evaluate the efficacy and safety of NKTR-214 in combination with approved checkpoint inhibitors, TECENTRIQ®(atezolizumab) and KEYTRUDA® (pembrolizumab) in patients with bladder and non-small cell lung cancer. Data from the PROPEL study is expected in the second half of 2018. |
● | In July 2017, Nektar and Eli Lilly announced a strategic collaboration to develop and commercialize NKTR-358, a potential first-in-class resolution therapeutic, that addresses an underlying immune system imbalance in patients with auto-immune conditions. A Phase 1 singe-ascending dose study is underway and a Phase 1/2 multiple-ascending dose study of NKTR-358 in patients with lupus is planned to begin in the second quarter of 2018. |
● | In July 2017, Nektar announced positive results from a Human Abuse Potential (HAP) study of NKTR-181, a first-in-class opioid analgesic. |
● | In May 2017, Nektar announced a new research collaboration with Takeda to explore the combination of NKTR-214 with five oncology compounds from Takeda’s cancer portfolio including a SYK-inhibitor and a proteasome inhibitor. |
● | In March 2017, Nektar announced positive results from the SUMMIT-07 Phase 3 efficacy study of NKTR-181 in over 600 patients with chronic low back pain. The primary efficacy endpoint of the study demonstrated significantly improved chronic back pain relief with NKTR-181 compared to placebo (p=0.0019). Key secondary endpoints of the study also achieved high statistical significance. The study demonstrated that NKTR-181 had a favorable safety profile and was well tolerated. |
The company also announced upcoming presentations at the following scientific congresses during the first half of 2018:
American Association for Cancer Research (AACR) Annual Meeting 2018, Chicago, IL:
● | Abstract 3755/Poster 5: “Comprehensive antitumor immune activation by a novel TLR7/8 targeting agent NKTR-262 combined with CD122-biased immunostimulatory cytokine NKTR-214”, Kivimae, S., et al. |
○ | Session: Immunology: Immunomodulatory Agents and Interventions 1 |
○ | Session Date and Time: Tuesday, April 17, 2018, 8:00 a.m. - 12:00 p.m. Central Time |
○ | Location: McCormick Place South, Exhibit Hall A, Poster Section 32 |
● | Abstract 2755/Poster 17: “NKTR-262: Prodrug pharmacokinetics in mice, rats, and dogs”, Lee, M., et al. |
○ | Session: Immunology: Immune Mechanisms Invoked by Therapies 1 |
○ | Session Date and Time: Monday, April 16, 2018, 1:00 p.m. - 5:00 p.m. Central Time |
○ | Location: McCormick Place South, Exhibit Hall A, Poster Section 33 |
● | Abstract 123/Poster 13: “Enhanced anti-tumor activity of the combination of entinostat and NKTR-214 in renal and colon cancer tumor models”, Wang, L., et al. |
○ | Session: Tumor Biology: Role of the Innate Immune System in Tumorigenesis |
○ | Session Date and Time: Sunday, April 15, 2018, 1:00 p.m. - 5:00 p.m. Central Time |
○ | Location: McCormick Place South, Exhibit Hall A, Poster Section 5 |
● | Abstract 3566/Poster 4: “Enhanced expansion and tumor targeting of adoptively transferred T cells with NKTR-214”, Parisi, G., et al. |
○ | Session: Clinical Research: Adoptive Cell Therapy 3 |
○ | Session Date and Time: Tuesday, April 17, 2018, 8:00 a.m. - 12:00 p.m. Central Time |
○ | Location: McCormick Place South, Exhibit Hall A, Poster Section 24 |
Antigen-Specific Immune Tolerance Drug Development Summit 2018, Boston, MA:
● | Preclinical Data Presentation: “NKTR-358: A Selective Regulatory T Cell Inducing Agent for the Treatment of Autoimmune and Inflammatory Diseases” |
○ | Presenter: Jonathan Zalevsky, Ph.D., Nektar Therapeutics |
○ | Date and Time: Wednesday, April 25, 2018, 4:20 p.m. Eastern Time |
American Academy of Pain Medicine 34th Annual Meeting, Vancouver, BC:
● | Poster: “Efficacy, safety, and tolerability of NKTR-181 in patients with moderate to severe chronic low-back pain: A Phase 3 study” |
○ | Presenter: John Markman, M.D., University of Rochester Medical Center |
○ | Session: Poster Session 2 |
○ | Date and Time: Friday, April 27, 2018, 6:00 p.m. Pacific Time |
● | Poster: “Measuring withdrawal in a phase 3 study of a new analgesic, NKTR-181, in subjects with moderate-to-severe chronic low-back pain” |
○ | Presenter: Jack Henningfield, Ph.D., Pinney Associates |
○ | Session: Poster Session 2 |
○ | Date: Friday, April 27, 2018, 6:00 p.m. Pacific Time |
Treg Directed Therapy for Autoimmune Disorders Meeting, Boston, MA:
● | Preclinical Data Presentation: “NKTR-358: An IL-2 Pathway Agonist that Selectively Expands and Activates Regulatory T cells for the Treatment of Allergy and Autoimmune Disease” |
○ | Presenter: Jonathan Zalevsky, Ph.D., Nektar Therapeutics |
○ | Session: Enhanced Treg-based therapy with the use of IL-2 |
○ | Date and Time: Wednesday, May 23, 2018, 3:40 p.m. Eastern Time |
3rd Annual Advances in Immuno-Oncology Congress, London, U.K.:
● | Presentation: “Accessing The Potential Of An Immunotherapeutic Agent” |
○ | Presenter: Jonathan Zalevsky, Ph.D., Nektar Therapeutics |
○ | Session: Translational Immuno-Oncology |
○ | Date and Time: Thursday, May 24, 2018, 5:40 p.m. London Time |
College on Problems of Drug Dependence 80th Annual Scientific Meeting, San Diego, CA:
● | Oral Presentation: “Neuropharmacodynamic Profile of NKTR-181: Correlation to Low Abuse Potential” |
○ | Presenter: Laurie VanderVeen, Ph.D., Nektar Therapeutics |
○ | Session: Preclinical Opioid |
○ | Date and Time: Tuesday, June 12, 2018, 10:15 a.m. - 10:30 a.m. Pacific Time |
● | Oral Presentation: “Assessment of Drug Abuse-Related Events with MADDERS in SUMMIT-07: A Phase-3 Study of NKTR-181 in Patients With Moderate to Severe Chronic Low-Back Pain” |
○ | Presenter: Ryan K. Lanier, Ph.D., Analgesic Solutions |
○ | Session: Pain |
○ | Date and Time: Wednesday, June 13, 2018, 1:30 p.m. - 1:45 p.m. Pacific Time |
Conference
Call to Discuss Fourth Quarter and Year-End 2017 Financial Results
Nektar management will host a conference call to review the results beginning at 5:00 p.m. Eastern Time/2:00 p.m. Pacific Time
today, Thursday, March 1, 2018.
This press release and a live audio-only Webcast of the conference call can be accessed through a link that is posted on the home page and Investors section of the Nektar website: http://ir.nektar.com/. The web broadcast of the conference call will be available for replay through Monday, April 2, 2018.
To access the conference call, follow these instructions:
Dial:
(877) 881.2183 (U.S.); (970) 315.0453 (international)
Passcode: 6299239 (Nektar Therapeutics is the host)
In the event that any non-GAAP financial measure is discussed on the conference call that is not described in the press release, or explained on the conference call, related information will be made available on the Investors page at the Nektar website as soon as practical after the conclusion of the conference call.
About
Nektar Therapeutics
Nektar Therapeutics is a research-based biopharmaceutical company whose
mission is to discover and develop innovative medicines to address the unmet medical needs of patients. Our R&D pipeline of
new investigational medicines includes treatments for cancer, auto-immune disease and chronic pain. We leverage Nektar’s
proprietary and proven chemistry platform in the discovery and design of our new therapeutic candidates. Nektar is headquartered
in San Francisco, California, with additional operations in Huntsville, Alabama and Hyderabad, India. Further information about
the company and its drug development programs and capabilities may be found online at http://www.nektar.com.
Opdivo® is a registered trademark of Bristol-Myers Squibb, TECENTRIQ® is a registered trademark of Roche and
KEYTRUDA® is a registered trademark of Merck.
Cautionary
Note Regarding Forward-Looking Statements
This press release contains uncertain or forward-looking statements which can be identified by words such as: “could,”
“plan,” “expect,” “prepare,” “may,” “will” and similar references
to future periods. Examples of forward-looking statements include, among others, statements we make regarding the potential therapeutic
benefits of and future development plans for our products (including NKTR-214, NKTR-181, NKTR-358, NKTR-262 and NKTR-255), the
potential impact of NKTR-181 with respect to the opioid abuse epidemic, the timing and strategy for regulatory filings (including
the timing and strategy for filing a new drug application, “NDA”), and the results of clinical trials. Forward-looking
statements are neither historical facts nor assurances of future performance. Instead, they are based only on our current beliefs,
expectations and assumptions and are subject to inherent uncertainties, risks and changes in circumstances that are difficult
to predict and many of which are outside of our control. Our actual results may differ materially from those indicated in the
forward-looking statements and you should not rely on such statements. Important factors that could cause our actual results to
differ materially from those indicated in the forward-looking statements include: (i) clinical study outcomes remain very unpredictable
and it is possible that a clinical study could fail even after positive interim data is observed; (ii) the regulatory pathway
to review and approve pharmaceutical products is subject to substantial uncertainty; (iii) the data package required for filing
and approval of an NDA to the FDA is very uncertain and difficult to predict due to broad FDA regulatory discretion, and changing
FDA regulatory guidelines; (iv) the final outcomes and conclusions from sponsor meetings with FDA are subject to substantial FDA
discretion associated with issuing final meeting minutes and outcomes; (v) regulations concerning and controlling access to opioid-based
pharmaceuticals are strict and it is difficult to predict which scheduling category will apply to NKTR-181 if regulatory approval
is achieved; (vi) the timing of regulatory approval for the recently announced strategic collaboration agreement with Bristol-Myers
Squibb is uncertain; (vii) patents may not issue from our patent applications for our drug candidates, patents that have issued
may not be enforceable, or additional intellectual property licenses from third parties may be required; and (viii) certain other
important risks and uncertainties set forth in our Annual Report on Form 10-K filed with the Securities and Exchange Commission
on March 1, 2018. Any forward-looking statement made by us in this press release is based only on information currently available
to us and speaks only as of the date on which it is made. We undertake no obligation to update any forward-looking statement.
Contact:
For Investors:
Jennifer Ruddock of Nektar Therapeutics
415-482-5585
Jodi
Sievers of Nektar Therapeutics
415-482-5593
For
Media:
Jennifer Paganelli
347-658-8290
jpaganelli@purecommunications.com
NEKTAR THERAPEUTICS
CONDENSED CONSOLIDATED BALANCE SHEETS
(In thousands)
(Unaudited)
ASSETS | December 31, 2017(1) | December 31, 2016(1) | ||||||
Current assets: | ||||||||
Cash and cash equivalents | $ | 4,762 | $ | 59,640 | ||||
Short-term investments | 291,370 | 329,462 | ||||||
Accounts receivable, net | 5,014 | 15,678 | ||||||
Inventory | 10,726 | 11,109 | ||||||
Other current assets | 14,948 | 10,063 | ||||||
Total current assets | 326,820 | 425,952 | ||||||
Long-term investments | 57,088 | — | ||||||
Property, plant and equipment, net | 47,463 | 65,601 | ||||||
Goodwill | 76,501 | 76,501 | ||||||
Other assets | 994 | 817 | ||||||
Total assets | $ | 508,866 | $ | 568,871 | ||||
LIABILITIES AND STOCKHOLDERS’ EQUITY | ||||||||
Current liabilities: | ||||||||
Accounts payable | $ | 4,782 | $ | 2,816 | ||||
Accrued compensation | 8,263 | 18,280 | ||||||
Accrued clinical trial expenses | 9,461 | 7,958 | ||||||
Other accrued expenses | 10,064 | 4,711 | ||||||
Interest payable | 4,198 | 4,198 | ||||||
Liability related to refundable upfront payment | — | 12,500 | ||||||
Deferred revenue, current portion | 18,949 | 14,352 | ||||||
Other current liabilities | 446 | 7,407 | ||||||
Total current liabilities | 56,163 | 72,222 | ||||||
Senior secured notes, net | 245,207 | 243,464 | ||||||
Liability related to the sale of future royalties, net | 94,655 | 105,950 | ||||||
Deferred revenue, less current portion | 19,021 | 51,887 | ||||||
Other long-term liabilities | 5,992 | 7,223 | ||||||
Total liabilities | 421,038 | 480,746 | ||||||
Commitments and contingencies | ||||||||
Stockholders’ equity: | ||||||||
Preferred stock | — | — | ||||||
Common stock | 15 | 15 | ||||||
Capital in excess of par value | 2,207,865 | 2,111,483 | ||||||
Accumulated other comprehensive loss | (2,111 | ) | (2,363 | ) | ||||
Accumulated deficit | (2,117,941 | ) | (2,021,010 | ) | ||||
Total stockholders’ equity | 87,828 | 88,125 | ||||||
Total liabilities and stockholders’ equity | $ | 508,866 | $ | 568,871 |
(1) The consolidated balance sheets at December 31, 2017 and 2016 have been derived from the audited financial statements at those dates but do not include all of the information and notes required by generally accepted accounting principles in the United States for complete financial statements.
NEKTAR THERAPEUTICS
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(In thousands, except per share information)
(Unaudited)
Three Months Ended December 31, | Year Ended December 31, | |||||||||||||||
2017 | 2016 | 2017(1) | 2016(1) | |||||||||||||
Revenue: | ||||||||||||||||
Product sales | $ | 7,791 | $ | 13,690 | $ | 32,688 | $ | 55,354 | ||||||||
Royalty revenue | 9,574 | 6,392 | 33,527 | 19,542 | ||||||||||||
Non-cash royalty revenue related to sale of future royalties | 9,164 | 7,817 | 30,531 | 30,158 | ||||||||||||
License, collaboration and other revenue | 68,937 | 9,553 | 210,965 | 60,382 | ||||||||||||
Total revenue | 95,466 | 37,452 | 307,711 | 165,436 | ||||||||||||
Operating costs and expenses: | ||||||||||||||||
Cost of goods sold | 9,753 | 6,604 | 30,547 | 30,215 | ||||||||||||
Research and development | 81,429 | 50,232 | 268,461 | 203,801 | ||||||||||||
General and administrative | 12,337 | 12,760 | 52,364 | 44,275 | ||||||||||||
Impairment of equipment and other costs for terminated program | 15,981 | — | 15,981 | — | ||||||||||||
Total operating costs and expenses | 119,500 | 69,596 | 367,353 | 278,291 | ||||||||||||
Loss from operations | (24,034 | ) | (32,144 | ) | (59,642 | ) | (112,855 | ) | ||||||||
Non-operating income (expense): | ||||||||||||||||
Interest expense | (5,633 | ) | (5,550 | ) | (22,085 | ) | (22,468 | ) | ||||||||
Non-cash interest expense on liability related to sale of future royalties | (5,334 | ) | (4,783 | ) | (18,869 | ) | (19,712 | ) | ||||||||
Interest income and other income (expense), net | 1,357 | 721 | 4,520 | 2,387 | ||||||||||||
Total non-operating expense, net | (9,610 | ) | (9,612 | ) | (36,434 | ) | (39,793 | ) | ||||||||
Loss before provision for income taxes | (33,644 | ) | (41,756 | ) | (96,076 | ) | (152,648 | ) | ||||||||
Provision for income taxes | 182 | 443 | 616 | 876 | ||||||||||||
Net loss | $ | (33,826 | ) | $ | (42,199 | ) | $ | (96,692 | ) | $ | (153,524 | ) | ||||
Basic and diluted net loss per share | $ | (0.21 | ) | $ | (0.28 | ) | $ | (0.62 | ) | $ | (1.10 | ) | ||||
Weighted average shares outstanding used in computing basic and diluted net loss per share | 158,324 | 149,071 | 155,953 | 139,596 |
(1) The consolidated statements of operations for the years ended December 31, 2017 and 2016 have been derived from the audited financial statements as of those dates but do not include all of the information and notes required by generally accepted accounting principles in the United States for complete financial statements.
NEKTAR THERAPEUTICS
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands)
(Unaudited)
Year Ended December 31, | ||||||||
2017(1) | 2016(1) | |||||||
Cash flows from operating activities: | ||||||||
Net loss | $ | (96,692 | ) | $ | (153,524 | ) | ||
Adjustments to reconcile net loss to net cash used in operating activities: | ||||||||
Non-cash royalty revenue related to sale of future royalties | (30,531 | ) | (30,158 | ) | ||||
Non-cash interest expense on liability related to sale of future royalties | 18,869 | 19,712 | ||||||
Stock-based compensation | 36,615 | 25,850 | ||||||
Depreciation and amortization | 14,741 | 15,351 | ||||||
Impairment of equipment from terminated program | 15,081 | — | ||||||
Other non-cash transactions | (881 | ) | (2,185 | ) | ||||
Changes in operating assets and liabilities: | ||||||||
Accounts receivable, net | 10,664 | 4,269 | ||||||
Inventory | 383 | 237 | ||||||
Other assets | (4,800 | ) | (312 | ) | ||||
Accounts payable | 2,074 | 518 | ||||||
Accrued compensation | (10,017 | ) | 12,282 | |||||
Accrued clinical trial expenses | 1,503 | (262 | ) | |||||
Other accrued expenses | 5,774 | 191 | ||||||
Liability related to refundable upfront payment | (12,500 | ) | 12,500 | |||||
Deferred revenue | (28,269 | ) | (17,615 | ) | ||||
Other liabilities | (2,428 | ) | (3,878 | ) | ||||
Net cash used in operating activities | (80,414 | ) | (117,024 | ) | ||||
Cash flows from investing activities: | ||||||||
Purchases of investments | (404,425 | ) | (334,659 | ) | ||||
Maturities of investments | 347,743 | 253,682 | ||||||
Sales of investments | 37,549 | 4,969 | ||||||
Purchases of property, plant and equipment | (9,676 | ) | (6,392 | ) | ||||
Net cash used in investing activities | (28,809 | ) | (82,400 | ) | ||||
Cash flows from financing activities: | ||||||||
Payment of capital lease obligations | (5,131 | ) | (5,945 | ) | ||||
Proceeds from shares issued under equity compensation plans | 59,522 | 20,287 | ||||||
Issuance of common stock, net of issuance costs | — | 189,276 | ||||||
Net cash provided by financing activities | 54,391 | 203,618 | ||||||
Effect of exchange rates on cash and cash equivalents | (46 | ) | (124 | ) | ||||
Net increase (decrease) in cash and cash equivalents | (54,878 | ) | 4,070 | |||||
Cash and cash equivalents at beginning of year | 59,640 | 55,570 | ||||||
Cash and cash equivalents at end of year | $ | 4,762 | $ | 59,640 | ||||
Supplemental disclosure of cash flow information: | ||||||||
Cash paid for interest | $ | 20,116 | $ | 20,589 | ||||
Cash paid for income taxes | $ | 556 | $ | 757 |
(1) The consolidated statements of cash flows for the years ended December 31, 2017 and 2016 have been derived from the audited financial statements as of those dates but do not include all of the information and notes required by generally accepted accounting principles in the United States for complete financial statements.