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NEKTAR THERAPEUTICS

For the period ended Mar 31, 2025. Filed May 9, 2025.

View on SEC.gov

About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Mar 31, 2025 · Filed May 9, 2025

NKTR$37.26+3.1%Stored close · as of Nov 6, 2026

What changed in Management’s Discussion and Analysis?

Read the current filing

Previous report: 10-Q

Period ended 2024-09-30; filed 2024-11-08.

0000950170-24-123570

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Current report: 10-Q

Period ended 2025-03-31; filed 2025-05-09.

0000950170-25-067279

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The baseline is this issuer’s latest earlier reporting period of the same form that was filed before the current report. A previous 10-Q is a different quarter, not a year-over-year comparison. Amendments are excluded.

Compared 91 previous paragraphs and 87 current paragraphs.

46 unchanged; 30 reworded; 11 added; 13 removed; 2 previous and 0 current paragraphs rearranged.

Tables are not compared: 3 previous and 3 current tables excluded. Dates, whitespace, punctuation and numbering changes are ignored; changes to financial figures remain significant.

A changed paragraph is not evidence that risk increased or decreased. An unchanged paragraph does not establish that risk stayed the same.

Added paragraphs (11)

Current report

We continued to manufacture the polymer reagents used in the production of some of the drug products until the sale of the Facility in December 2024. The sale of the Facility does not alter the royalties or other milestones payable under these agreements or our collaboration agreement with UCB for dapirolizumab pegol as further disclosed in Note 7 to our Condensed Consolidated Financial Statements.

Current report

The following table presents expenses incurred for direct third-party costs, including clinical and regulatory services, contract manufacturing, clinical supplies, and preclinical study support for each of our drug candidates. The table also presents personnel, overhead and other indirect costs as we utilize our employee and infrastructure resources across multiple development and research programs (in thousands):

Current report

Research and development expense increased for the three months ended March 31, 2025 as compared to the three months ended March 31, 2024 primarily due to an increase in expense for the development of rezpegaldesleukin, partially offset by a decrease in expense for the development of NKTR-255. Excluding any potential additional development activities for rezpegaldesleukin dependent on the results of our Phase 2b trials, we expect research and development expense in total for full year 2025 to be consistent with 2024.

Current report

General and administrative expense increased for the three months ended March 31, 2025 as compared to the three months ended March 31, 2024, due to an increase for legal expenses, partially offset by decreases in facilities expenses and stock-based compensation expense. Facilities expense decreased primarily due to the impairment charges we recorded in 2024, resulting in decreased lease expense following the impairment, and stock-based compensation expense decreased due to lower valuations on more recent grants due to the decrease in our stock price.

Current report

As discussed in Note 4 to our Condensed Consolidated Financial Statements, we determine our gain or loss on our equity method investment in Gannet BioChem using the hypothetical liquidation at book value (HLBV) due to Ampersand’s priority liquidation preference and right to receive a cumulative preferred dividend. The HLBV method is a balance sheet approach that calculates the change in the hypothetical amount we and Ampersand would be entitled to receive if Gannet BioChem were liquidated at book value at the end of each period, subject to certain adjustments for any contributions, distributions and basis differences. We report our gain or loss from our equity method investment in Gannet Biochem on a three-month lag. Therefore, our loss recorded for the three months ended March 31, 2025, reflects Gannet BioChem’s activities from closing on December 2, 2024 through December 31, 2024. Our loss of $4.5 million for this period reflects Ampersand’s cumulative preferred dividend earned for such period and Gannet BioChem’s net loss for such period, which included $2.5 million of Ampersand’s transaction costs that were deducted from Ampersand’s cash investment in Gannet BioChem.

Current report

As discussed above, on December 2, 2024, we completed the sale of the Facility which included the assignment of our manufacturing and supply agreements to Gannet BioChem, an affiliate of Ampersand Capital Partners, for consideration of $64.7 million in cash, net of transaction costs,and an approximate 20% equity interest at the time of close in Gannet BioChem. See Note 4 to our Condensed Consolidated Financial Statements for additional information.

Current report

We filed a shelf registration statement on Form S-3 and a related prospectus (the Shelf Registration Statement) that was declared effective by the Securities and Exchange Commission (the SEC) on April 1, 2025. Pursuant to the Shelf Registration Statement, we may offer and sell common stock, preferred stock, debt securities, warrants and or units having an aggregate public offering price of up to $300.0 million. In connection with the filing of the Shelf Registration Statement, we also entered into a sales agreement (the Sales Agreement) with Piper Sandler & Co. and BTIG, LLC, relating to the sale of our common stock having an aggregate offering price of up to $75.0 million. We have agreed to pay Piper Sandler & Co. and BTIG, LLC a commission equal to 3.0% of the gross sales price of all common stock sold through them as sales agents. As of March 31, 2025, no shares have been issued under the Shelf Registration Statement or the Sales Agreement.

Current report

Other than our policy for our gain or loss on equity method investment as discussed in Notes 1 and 4 to our Condensed Consolidated Financial Statements, there have been no material changes to our critical accounting policies and estimates discussed in our Annual Report on Form 10-K for the fiscal year ended December 31, 2024.
Removed paragraphs (13)

Previous report

We also plan to explore other auto-immune indications for the development of rezpegaldesleukin. We developed rezpegaldesleukin and currently own full rights to this drug candidate. Although we previously entered into a license agreement with Eli Lilly and Company in 2017 (the Lilly Agreement) to develop and commercialize rezpegaldesleukin, on April 23, 2023, we received from Lilly a notice of at-will termination of the Lilly Agreement, and on April 27, 2023, we announced that we would be regaining full rights to rezpegaldesleukin.

Previous report

We historically had a manufacturing arrangement with UCB that included a fixed price which was less than the fully burdened manufacturing cost for the reagent. As a result of this arrangement, gross margin was negative for the periods presented, other than the three months ended September 30, 2024. We had negotiated this fixed price in exchange for a higher royalty rate. Accordingly, when evaluating the net realizable value of our inventory for UCB, we include the negotiated increase of the royalties in our analysis, and the aggregate revenue had historically been greater than our manufacturing cost. Due to the decreases in the royalty rates for 2024 and 2025 as a result of a settlement agreement with UCB, the aggregate revenue was expected to be less than our manufacturing cost, and therefore we recorded a provision for net realizable value.

Previous report

On July 31, 2024, and further formalized in an Amended and Restated Manufacturing and Supply Agreement dated October 18, 2024, we entered into a long-term "take or pay" supply agreement with UCB that increases the selling price of the PEG reagent used in the manufacture of CIMZIA® (the UCB Supply Agreement). The UCB Supply Agreement also covers UCB’s purchases of the same reagent (at the same price) for use in the manufacture of dapirolizumab pegol. We analyzed the terms of the agreement, including its cancellation provisions, and concluded that it represents a long-term agreement. Since the performance obligations are deliveries of a single reagent, we determined a single sales price for recognition of revenue over the term of the arrangement. Because the billed price was less than the single selling price, we recorded an increase to product sales of $3.8 million for the three months ended September 30, 2024. Additionally, we released the provision for net realizable value during the three months ended September 30, 2024, and recorded a benefit of $2.6 million to cost of goods sold.

Previous report

As discussed above and disclosed in Note 10 to our Condensed Consolidated Financial Statements, we have entered into an agreement to sell our manufacturing facility in Huntsville, AL, and assign our manufacturing and supply agreements to an affiliate of Ampersand Capital Partners. Upon closing of the Transactions, we will no longer record product sales and cost of goods sold.

Previous report

During the three and nine months ended September 30, 2023, we recorded a provision for inventory obsolescence of $3.7 million as an increase to cost of goods sold for certain PEG reagent batches, as a result of our identification of a quality concern of a solvent obtained from a third party that was used in the manufacture of these batches. Based on subsequent further analysis and partner approval, we reversed this provision in the three months ended December 31, 2023.

Previous report

Research and development expense increased for the three and nine months ended September 30, 2024 as compared to the three and nine months ended September 30, 2023, respectively, due to increases in expenses for the development of rezpegaldesleukin and NKTR-0165, offset by decreases in employee costs and related facilities costs as well as development expense for NKTR-255. Additionally, beginning in the three months ended March 31, 2024, we began reporting, as research and development expense, the costs of winding down the bempegaldesleukin program, which was previously reported in restructuring, impairment and costs of terminated program, as the amounts are immaterial. We expect research and development expense in total to increase in 2024 as compared to 2023 primarily due to the increased expense for the development of rezpegaldesleukin in two Phase 2b trials.

Previous report

As discussed in Note 7 to our Condensed Consolidated Financial Statements, pursuant to our 2023 Restructuring Plan, we reduced our San Francisco-based workforce by approximately 60%, which was substantially completed by June 2023. Additionally, pursuant to the 2023 Restructuring Plan, we decided to sublease our remaining office and laboratory space on Mission Bay Blvd. South, and therefore we ceased recording a portion of the related lease expense as research and development expense after June 2023 upon completing the reduction in force. We expect employee costs and allocations of facilities-related costs to decrease for full year 2024 as compared to 2023 for these same reasons.

Previous report

Clinical trial expense, other third-party and employee costs for the wind down of the bempegaldesleukin program: We recognized $5.5 million for the full year of 2023 for the wind down of the bempegaldesleukin program. Because the amounts have become immaterial, we report these costs within research and development expense for 2024.

Previous report

Severance and benefits expense: We recognized $7.9 million for severance and benefit expense in 2023 for the 2023 Restructuring Plan. We do not expect to recognize expense for the 2023 Restructuring Plan in 2024.

Previous report

As discussed in Note 8 to our Condensed Consolidated Financial Statements, during the three months ended March 31, 2023, our stock price and resulting market capitalization experienced a significant, sustained decline. As a result, we measured the fair value of the Company based on income and market approaches. Based on this analysis, we wrote off all of our goodwill in the three months ended March 31, 2023. We had previously recognized goodwill primarily from our acquisitions of Shearwater Corp. and Aerogen, Inc. in 2001 and 2005, respectively.

Previous report

As discussed above and further disclosed in Note 10 to our Condensed Consolidated Financial Statements, we have entered into an agreement to sell our manufacturing facility in Huntsville, AL, and assign our manufacturing and supply agreements to an affiliate of Ampersand Capital Partners. Upon closing of the Transactions, we will receive $70.0 million in cash (subject to customary closing costs and adjustments based on closing net working capital, closing inventory and the amount of any indebtedness assumed by the Purchaser) and an approximate 20% ownership interest at the time of close in the Purchaser.
Reworded paragraphs (30)

Previous wording

Nektar Therapeutics is a clinical stage, research-based drug discovery biopharmaceutical company focused on discovering and developing innovative medicines in the field of immunotherapy. Within this growing field, we direct our efforts toward creating new immunomodulatory agents that selectively induce, amplify, attenuate or prevent immune responses in order to achieve desired therapeutic outcomes. We apply our deep understanding of immunology and unparalleled expertise in polymer chemistry to create innovative drug candidates and use our drug development expertise to advance these molecules through preclinical and clinical development. Our pipeline of clinical-stage and preclinical-stage immunomodulatory agents targets the treatment of autoimmune diseases (e.g. rezpegaldesleukin and NKTR-0165, respectively) and cancer (e.g. NKTR-255). We continue to make significant investments in building and advancing our pipeline of drug candidates as we believe that this is the best strategy to build long-term shareholder value.

Current wording

Nektar Therapeutics is a clinical stage, research-based drug discovery biopharmaceutical company focused on discovering and developing innovative medicines in the field of immunotherapy. Within this growing field, we direct our efforts toward creating new immunomodulatory agents that selectively induce, amplify, attenuate or prevent immune responses in order to achieve desired therapeutic outcomes. We apply our deep understanding of immunology to identify and create innovative drug candidates and use our drug development expertise to advance these molecules through preclinical and clinical development. Our pipeline of clinical-stage and preclinical-stage immunomodulatory agents targets the treatment of autoimmune diseases (e.g. rezpegaldesleukin and NKTR-0165, respectively) and cancer (e.g. NKTR-255). We continue to make significant investments in building and advancing our pipeline of drug candidates as we believe that this is the best strategy to build long-term shareholder value.

Previous wording

On November 1, 2024, we entered into an Asset Purchase Agreement (the APA) with an affiliate (the Purchaser) of Ampersand Management LLC d/b/a Ampersand Capital Partners, for the sale of our manufacturing facility located in Huntsville, Alabama (the Facility) and assignment of the existing manufacturing and supply agreements for consideration of $70 million in cash (subject to customary closing costs and adjustments based on closing net working capital, closing inventory and the amount of any indebtedness assumed by the Purchaser) and an approximate 20% equity ownership at the time of close in the Purchaser (the Transactions). See Note 10 to our Condensed Consolidated Financial Statements for additional information.

Current wording

On December 2, 2024, we completed the sale of our manufacturing facility in Huntsville, Alabama (the Facility), and assigned our manufacturing and supply agreements to Gannet BioChem, an affiliate of Ampersand Management LLC d/b/a Ampersand Capital Partners (Ampersand) for consideration of $64.7 million in cash, net of transaction costs, and an approximate 20% equity interest at the time of close in Gannet BioChem. See Note 4 to our Condensed Consolidated Financial Statements for additional information.

Previous wording

In late October 2023, we initiated a Phase 2b clinical study of rezpegaldesleukin in patients with moderate-to-severe atopic dermatitis, and in March 2024, we initiated a Phase 2b clinical study in patients with severe-to-very severe alopecia areata.

Current wording

In October 2023, we initiated a Phase 2b clinical study of rezpegaldesleukin in patients with moderate-to-severe atopic dermatitis, which remains on track for a topline data readout in the first half of 2025. In March 2024, we initiated a Phase 2b clinical study in patients with severe-to-very severe alopecia areata, which remains on track for a topline data readout in the second half of 2025. On February 11, 2025, we announced that the FDA had granted Fast Track designation for rezpegaldesleukin for the treatment of adult and pediatric patients 12 years of age and older with moderate-to-severe atopic dermatitis whose disease is not adequately controlled with topical prescription therapies or when those therapies are not advisable. On February 24, 2025, we announced that we had entered into a collaboration agreement with TrialNet to evaluate rezpegaldesleukin in patients with new onset stage 3 type 1 diabetes mellitus in a Phase 2 study. TrialNet will conduct and fund the study. TrialNet is sponsored and funded by the National Institutes of Health, primarily through the Special Statutory Funding Program for Type 1 Diabetes through the National Institute of Diabetes and Digestive and Kidney Diseases. Nektar will supply rezpegaldesleukin for the study and will retain all rights to the rezpegaldesleukin program under the collaboration.

Previous wording

We initiated a Nektar-sponsored Phase 2 study to evaluate NKTR-255 following Yescarta® or Breyanzi® CD19 CAR-T cell therapy in patients with large B-cell lymphoma, and we expect to announce clinical data from this study at a medical conference before the end of 2024. The Fred Hutchinson Cancer Center is evaluating NKTR-255 following Breyanzi® CD19 CAR-T cell therapy in patients with relapsed/refractory large B-cell lymphoma as an investigator sponsored study. We are continuing our oncology clinical collaboration with Merck KGaA to evaluate the maintenance regimen of NKTR-255 in combination with avelumab, a PD-L1 inhibitor, in patients with locally advanced or metastatic urothelial carcinoma in the Phase II JAVELIN Bladder Medley study. We expect to receive topline data from this study in the second half of 2024. We entered into a new clinical study collaboration with AbelZeta Pharma, Inc. (AbelZeta) (formerly known as CBMG Holdings) to study NKTR-255 in combination with its C-TIL051, a tumor-infiltrating lymphocyte (TIL) therapy, in advanced non-small cell lung cancer (NSCLC) patients that are relapsed or refractory to anti-PD-1 therapy. Under the collaboration, we will contribute NKTR-255, and AbelZeta will add NKTR-255 to its ongoing AbelZeta-sponsored Phase 1 clinical trial. We also have an ongoing investigator sponsored study evaluating NKTR-255 in combination with IMFINZI (durvalumab) in patients with unresectable Stage 3 NSCLC who have received chemoradiation.

Current wording

In December 2024, we announced the results of our Phase 2 proof-of-concept study to evaluate NKTR-255 following Yescarta® or Breyanzi® CD19 CAR-T cell therapy in patients with large B-cell lymphoma at the 66th ASH Annual Meeting and Exposition in San Diego, California. In the fifteen-person clinical trial, the NKTR-255 combined treatment group demonstrated an improved complete response rate (CRR) at six months, achieving 73% compared to 50% for the placebo, as assessed by a blinded independent central radiology review. Additionally, two patients treated with NKTR-255 converted from stable disease or partial response to complete responses at six months. No conversions from stable disease or partial response to complete response were observed in the placebo arm of the trial. The Fred Hutchinson Cancer Center is evaluating NKTR-255 following Breyanzi® CD19 CAR-T cell therapy in patients with relapsed/refractory large B-cell lymphoma as an investigator sponsored study. We are continuing our oncology clinical collaboration with Merck KGaA to evaluate the maintenance regimen of NKTR-255 in combination with avelumab, a PD-L1 inhibitor, in patients with locally advanced or metastatic urothelial carcinoma in the Phase II JAVELIN Bladder Medley study. We expect to receive topline data from this study in the first half of 2025. We entered into a new clinical study collaboration with AbelZeta Pharma, Inc. (AbelZeta) (formerly known as CBMG Holdings) to study NKTR-255 in combination with its C-TIL051, a tumor-infiltrating lymphocyte (TIL) therapy, in advanced non-small cell lung cancer (NSCLC) patients that are relapsed or refractory to anti-PD-1 therapy. Under the collaboration, we will contribute NKTR-255, and AbelZeta will add NKTR-255 to its ongoing AbelZeta-sponsored Phase 1 clinical trial. We also have an ongoing investigator sponsored study evaluating NKTR-255 in combination with IMFINZI (durvalumab) in patients with unresectable Stage 3 NSCLC who have received chemoradiation.

Previous wording

We continue to advance our most promising research drug candidates into preclinical development with the objective of advancing these early-stage research programs to human clinical studies over the next several years. Our lead research program, NKTR-0165, is our preclinical tumor necrosis factor (TNF) receptor type II (TNFR2) agonist asset, which we believe is a unique bivalent antibody that selectively stimulates TNFR2 receptor activity, without modulation of the TNFR1 signaling. TNFR2 signaling drives immunoregulatory function and can provide a direct protective effect for tissue cells. TNFR2 is highly expressed on Tregs, neuronal cells and endothelial cells and has been shown to potentiate the suppressive effects and overall functional properties of Tregs. Our focus on TNFR2 antibody candidates that show selective Treg cell binding and signaling profiles that may be developed for treatment of autoimmune diseases, such as ulcerative colitis, multiple sclerosis and vitiligo. We are carrying out Investigational New Drug (IND) enabling studies for this program in 2024, after having exercised an option in December 2023 to gain an exclusive license to specified agonistic antibodies and other materials that were developed pursuant to a research collaboration and license option agreement we entered into with Biolojic Design, Ltd. in 2021.

Current wording

We continue to advance our most promising research drug candidates into preclinical development with the objective of advancing these early-stage research programs to human clinical studies over the next several years. Our lead research program, NKTR-0165, is our preclinical tumor necrosis factor (TNF) receptor type II (TNFR2) agonist asset, which we believe is a unique bivalent antibody that selectively stimulates TNFR2 receptor activity, without modulation of the TNFR1 signaling. TNFR2 signaling drives immunoregulatory function and can provide a direct protective effect for tissue cells. TNFR2 is highly expressed on Tregs, neuronal cells and endothelial cells and has been shown to potentiate the suppressive effects and overall functional properties of Tregs. Our focus on TNFR2 antibody candidates that show selective Treg cell binding and signaling profiles that may be developed for treatment of autoimmune diseases, such as ulcerative colitis, multiple sclerosis and vitiligo. We began carrying out Investigational New Drug (IND) enabling studies for this program in 2024, after having exercised an option in December 2023 to gain an exclusive license to specified agonistic antibodies and other materials that were developed pursuant to a research collaboration and license option agreement we entered into with Biolojic Design, Ltd. in 2021.

Previous wording

We have historically derived substantially all of our revenue and significant amounts of research and development operating capital from our collaboration agreements. In addition to payments received under the Lilly Agreement, we have received upfront and milestone payments and cost-sharing reimbursements under a number of other previous collaboration agreements, and certain of our collaboration partners have borne substantial costs of developing our drug candidates. Following the return of our rights to develop rezpegaldesleukin from Lilly, unless we enter into a new collaboration agreement, we will bear all the costs of developing our pipeline drug candidates, other than our clinical collaborations for NKTR-255 described above.

Current wording

We have historically derived substantially all of our revenue and significant amounts of research and development operating capital from our collaboration agreements. We have received upfront and milestone payments and cost-sharing reimbursements under a number of previous collaboration agreements, and certain of our collaboration partners have borne substantial costs of developing our drug candidates. We expect we will continue our approach of entering into revenue-generating collaboration agreements to pay in whole or in part the development costs of our drug candidates.

Previous wording

Several of our historical collaboration agreements have resulted in approved drugs, for which we may continue to manufacture the polymer reagents used in the production of the drug products and may be entitled to royalties for net sales of these approved drugs. However, we have sold our rights to receive royalties under these arrangements, including:

Current wording

Several of our historical collaboration agreements have resulted in approved drugs, for which we may be entitled to royalties for net sales of these approved drugs. However, we have sold our rights to receive royalties under these arrangements, including:

Previous wording

2020 Purchase and Sale Agreement: In December 2020, we sold our rights, subject to a cap, to receive royalties from MOVANTIK® / MOVENTIG® (for the treatment of opioid-induced constipation), ADYNOVATE® / ADYNOVI® (a half-life extension product of Factor VIII) and other hemophilia products, under our arrangements with AstraZeneca AB, Baxalta, Inc. (a wholly owned-subsidiary of Takeda Pharmaceutical Company Ltd.), and Novo Nordisk A/S, respectively, for $150.0 million to entities managed by Healthcare Royalty Management, LLC (HCR) under a capped sale arrangement, such that all future royalties return to Nektar if HCR receives $210.0 million in royalties by December 31, 2025 (the 2025 Threshold) or $240.0 million if the 2025 Threshold is not met. On March 4, 2024, Nektar and HCR amended the 2020 Purchase and Sale Agreement to remove the cap on the royalties in exchange for $15.0 million. See Note 3 to our Condensed Consolidated Financial Statements for additional information.

Current wording

2020 Purchase and Sale Agreement: In December 2020, we sold our rights, subject to a cap, to receive royalties from MOVANTIK® / MOVENTIG® (for the treatment of opioid-induced constipation), ADYNOVATE® / ADYNOVI® (a half-life extension product of Factor VIII) and other hemophilia products, under our arrangements with AstraZeneca AB, Baxalta, Inc. (a wholly owned-subsidiary of Takeda Pharmaceutical Company Ltd.), and Novo Nordisk A/S, respectively, for $150.0 million to entities managed by Healthcare Royalty Management, LLC (HCR) under a capped sale arrangement, such that all future royalties were to return to Nektar if HCR receives $210.0 million in royalties by December 31, 2025 (the 2025 Threshold) or $240.0 million if the 2025 Threshold is not met. On March 4, 2024, Nektar and HCR amended the 2020 Purchase and Sale Agreement to remove the cap on the royalties in exchange for $15.0 million.

Previous wording

With respect to financing our near-term business needs, as set forth below in “Key Developments and Trends in Liquidity and Capital Resources,” we estimate we have working capital to fund our current business plans through at least the next twelve months. At September 30, 2024, we had approximately $249.0 million in cash and investments in marketable securities.

Current wording

With respect to financing our near-term business needs, as set forth below in “Key Developments and Trends in Liquidity and Capital Resources,” we estimate we have working capital to fund our current business plans through at least the next twelve months. At March 31, 2025, we had approximately $220.7 million in cash and investments in marketable securities.

Previous wording

Product sales and Cost of goods sold: Product sales include predominantly fixed price manufacturing and supply agreements with our collaboration partners and are the result of firm purchase orders from those partners. Accordingly, the revenue recognized in a given period is based solely on the demand and requirements of our collaboration partners and is not ratable throughout the year. We expect product sales to increase for 2024 as compared to 2023 due to increased demand from our partners and the increased selling price for UCB as a result of an amendment to our supply agreement, as described below.

Current wording

Product sales and Cost of goods sold: Product sales included predominantly fixed price manufacturing and supply agreements with our collaboration partners and are the result of firm purchase orders from those partners. Due to the sale of the Facility in December 2024, we no longer recognize product sales or costs of goods sold under these arrangements in 2025.

Previous wording

Non-cash royalty revenue and Non-cash interest expense: We recognize non-cash royalty revenue and non-cash interest expense resulting from royalties on several products for which we had previously sold our rights to receive royalties under the 2012 and 2020 Purchase and Sale Agreements. These non-cash revenues and expenses have no effect on our cash flows, and we do not consider them material to our operations.

Current wording

Non-cash royalty revenue and Non-cash interest expense: We recognize non-cash royalty revenue and non-cash interest expense resulting from royalties on several products for which we had previously sold our rights to receive royalties under the 2012 and 2020 Purchase and Sale Agreements. These non-cash revenues and expenses have no effect on our cash flows, and we do not consider them material to our operations. We expect non-cash royalty revenue to decrease for 2025 as compared to 2024 due to the decrease in the royalty rate from UCB and the end of the royalty term for US sales of MIRCERA®in late 2024, and we expect non-cash interest expense to decrease as a result of the lower liability balances.

Previous wording

License, collaboration and other revenue: License, collaboration and other revenue includes the recognition of upfront payments, milestone and other contingent payments received in connection with our license and collaboration agreements. The amount of revenue depends in part upon the estimated recognition period of the upfront payments allocated to continuing performance obligations, the achievement of milestones and other contingent events, the continuation of existing collaborations, the amount of research and development work, and entering into new collaboration agreements, if any. License, collaboration and other revenue was not material for the periods presented or for the full year 2023, and we do not expect to recognize significant revenue for the full year 2024.

Current wording

License, collaboration and other revenue: License, collaboration and other revenue includes the recognition of upfront payments, milestone and other contingent payments received in connection with our license and collaboration agreements. The amount of revenue depends in part upon the estimated recognition period of the upfront payments allocated to continuing performance obligations, the achievement of milestones and other contingent events, the continuation of existing collaborations, the amount of research and development work, and entering into new collaboration agreements, if any. License, collaboration and other revenue was not material for the periods presented or for the full year 2024, and unless we enter into a new collaboration agreement with upfront payments, we do not expect to recognize significant revenue for the full year 2025.

Previous wording

Research and development expense consists primarily of clinical study costs, contract manufacturing costs, direct costs of outside research, materials, supplies, licenses and fees as well as personnel costs (including salaries, benefits, and non-cash stock-based compensation). Research and development expense also includes certain overhead allocations consisting of support and facilities-related costs.

Current wording

Research and development expense consists primarily of clinical study costs, contract manufacturing costs, direct costs of outside research, materials, supplies, licenses and fees as well as personnel costs (including salaries, benefits, and non-cash stock-based compensation). Research and development expense also includes certain overhead support allocations.

Previous wording

Research and development expense for rezpegaldesleukin increased for the three and nine months ended September 30, 2024 as compared to the three and nine months ended September 30, 2023, respectively, due to the initiation of the Phase 2b study in patients with moderate-to-severe atopic dermatitis in October 2023 and the Phase 2b study in patients with severe-to-very severe alopecia areata in March 2024. We expect the costs of development of rezpegaldesleukin to increase significantly for full year 2024 as compared to 2023 due to these Phase 2b studies.

Current wording

Research and development expense for rezpegaldesleukin increased for the three months ended March 31, 2025 as compared to the three months ended March 31, 2024, respectively, due to the increase in the patients enrolled and sites activated for our Phase 2b studies in patients with moderate-to-severe atopic dermatitis and in patients with severe-to-very severe alopecia areata, both of which completed enrollment in the three months ended March 31, 2025. Excluding any potential additional development activities for rezpegaldesleukin dependent on the results of these trials, however, we expect the costs of development of rezpegaldesleukin for full year 2025 to be consistent with full year 2024 as these Phase 2b studies continue.

Previous wording

Research and development expense for NKTR-255 decreased for the nine months ended September 30, 2024 as compared to the nine months ended September 30, 2023, as our development activities in 2024 are reduced compared to the prior period, and we expect development expense for full year 2024 to decrease as compared to 2023 for this same reason. Our development expense for NKTR-255 includes the Nektar-sponsored Phase 2 study to evaluate NKTR-255 following Yescarta® or Breyanzi® CD19 CAR-T cell therapy in patients with large B-cell lymphoma, the Fred Hutchinson Cancer Center investigator-sponsored study evaluating NKTR-255 following Breyanzi® CD19 CAR-T cell therapy in patients with relapsed/refractory large B-cell lymphoma, our oncology clinical collaboration with Merck KGaA to evaluate the maintenance regimen of NKTR-255 in combination with avelumab, a PD-L1 inhibitor, in patients with locally advanced or metastatic urothelial carcinoma in the Phase II JAVELIN Bladder Medley study, and an ongoing investigator sponsored study evaluating NKTR-255 in combination with IMFINZI (durvalumab) in patients with unresectable Stage 3 NSCLC who have received chemoradiation.

Current wording

Research and development expense for NKTR-255 decreased for the three months ended March 31, 2025 as compared to the three months ended March 31, 2024, as we have completed our Phase 2 study to evaluate NKTR-255 following Yescarta® or Breyanzi® CD19 CAR-T cell therapy in patients with large B-cell lymphoma, and we expect development expense for full year 2025 to decrease as compared to 2024 for this same reason. Our development expense for NKTR-255 for the periods presented include our oncology clinical collaboration with Merck KGaA to evaluate the maintenance regimen of NKTR-255 in combination with avelumab, a PD-L1 inhibitor, in patients with locally advanced or metastatic urothelial carcinoma in the Phase II JAVELIN Bladder Medley study, and investigator-sponsored studies, one evaluating NKTR-255 following Breyanzi® CD19 CAR-T cell therapy in patients with relapsed/refractory large B-cell lymphoma and one evaluating NKTR-255 in combination with IMFINZI (durvalumab) in patients with unresectable Stage 3 NSCLC who have received chemoradiation.

Previous wording

In December 2023, for our NKTR-0165 program, we exercised an option to gain an exclusive license to specified agonistic antibodies and other materials that were developed pursuant to a research collaboration and license option agreement we entered into with Biolojic Design, Ltd. in 2021. Research and development expense for NKTR-0165 increased for the three and nine months ended September 30, 2024 as compared to the three and nine months ended September 30, 2023, respectively, as we began conducting IND enabling studies for this program in 2024, and we expect development expense for NKTR-0165 to increase for full year 2024 as compared to 2023 for the same reason.

Current wording

In December 2023, for our NKTR-0165 program, we exercised an option to gain an exclusive license to specified agonistic antibodies and other materials that were developed pursuant to a research collaboration and license option agreement we entered into with Biolojic Design, Ltd. in 2021. Research and development expense for NKTR-0165 remained consistent for the periods presented as we have conducted IND enabling activities for this program. We expect development expense for NKTR-0165 for the full year 2025 to increase slightly as compared to the full year 2024 as we continue these IND enabling activities.

Previous wording

General and administrative expense includes the cost of administrative staffing, finance and legal activities, including certain overhead allocations consisting of support and facilities-related costs. Additionally, general and administrative expense includes our lease and other facilities expenses for spaces we have sublet or are seeking to sublease, net of sublease income. General and administrative expense decreased for the three and nine months ended September 30, 2024 as compared to the three and nine months ended September 30, 2023, respectively, reflecting a decrease in employee costs partially offset by reduction of facilities costs allocated to research and development expenses. As discussed in Note 7 to our Condensed Consolidated Financial Statements, pursuant our 2023 Restructuring Plan, we reduced our San Francisco-based workforce by approximately 60%, which we substantially completed by June 2023. As discussed above, as a result of the reduction in force and our decision to seek a sublease for our remaining space in our Mission Bay Blvd. South facility, we ceased recording the related facilities expense as research and development expense after June 2023, resulting in an increase to general and administrative expense.

Current wording

General and administrative expense includes the cost of administrative staffing, finance and legal activities, including certain overhead support allocations. Additionally, general and administrative expense includes our lease and other facilities expenses, net of sublease income.

Previous wording

We expect general and administrative expense for full year 2024 to be relatively consistent with 2023.

Current wording

We expect general and administrative expense for full year 2025 to decrease as compared to full year 2024 due to lower amounts of stock-based compensation expense and facilities expense.

Previous wording

As discussed in Note 7 to our Condensed Consolidated Financial Statements, we have incurred significant costs as a result of our 2022 and 2023 Restructuring Plans. In connection with these events, we reported the following costs in restructuring, impairment and costs of terminated program as further described and disclosed in Note 7 to our Condensed Consolidated Financial Statements (in thousands):

Current wording

In connection with our restructuring plans, we reported the following costs in restructuring and impairment as further described and disclosed in Note 8 to our Condensed Consolidated Financial Statements (in thousands):

Previous wording

Impairment of right-of-use assets and property, plant and equipment: We recognized $35.3 million in non-cash impairment charges for the full year 2023, primarily for office and laboratory space on Mission Bay Blvd. South and our office space on Third St., reflecting deteriorations in both the laboratory and office lease markets. The non-cash impairment charge for the nine months ended September 30, 2024 primarily reflect impairment charges for our office and laboratory space on Mission Bay Blvd. South and our office space on Third St. While we continue to seek subleases for our remaining spaces, we will continue to update our estimates based on changes in market conditions, whether or not we are able to enter into subleases and, if we do enter into subleases, the economic terms of those subleases, and we may record non-cash impairment charges in future periods as these estimates change.

Current wording

Impairment of right-of-use assets and property and equipment: We recognized $8.3 million in non-cash impairment charges for the full year 2024, primarily for our leased spaces in San Francisco, CA, including our office and laboratory space on Mission Bay Blvd. South (the Mission Bay Facility) and our office space on Third St. (the Third St. Facility), reflecting deteriorations in both the laboratory and office lease markets. While we continue to seek subleases for our remaining spaces, we will continue to update our estimates based on changes in market conditions, whether or not we are able to enter into subleases and, if we do enter into subleases, the economic terms of those subleases, and we may record incremental non-cash impairment charges in future periods as these estimates change.

Previous wording

Contract termination and other restructuring charges: We recognized $2.0 million in contract termination and other restructuring costs for the full year 2023, primarily resulting from our 2022 Restructuring Plan. We will continue to recognize expense as our estimates change until final settlement.

Current wording

Contract termination and other restructuring charges: We recognized $7.3 million in contract termination costs for the full year 2024. We will continue to recognize expense as our estimates change until final settlement.

Previous wording

Interest income decreased for the three and nine months ended September 30, 2024 as compared to the three and nine months ended September 30, 2023, respectively, reflecting a decrease in our investment balances, partially offset by an increase in interest rates. We expected interest income to decrease for 2024 due to lower investment balances as we fund our operations.

Current wording

Interest income decreased for the three months ended March 31, 2025 as compared to the three months ended March 31, 2024, respectively, primarily due to lower investment balances as we have utilized our investment balances to fund operations. We expect interest income to decrease for 2025 due to lower investment balances as we fund our operations.

Previous wording

We have financed our operations primarily through revenue from upfront and milestone payments under our strategic collaboration agreements, royalties and product sales, as well as public and private placements of debt and equity securities. As of September 30, 2024, we had approximately $249.0 million in cash and investments in marketable securities.

Current wording

We have financed our operations primarily through revenue from upfront and milestone payments under our strategic collaboration agreements, royalties and product sales, as well as public and private placements of debt and equity securities. As of March 31, 2025, we had approximately $220.7 million in cash and investments in marketable securities.

Previous wording

During the nine months ended September 30, 2024, we entered into the following transactions:

Previous wording

We expect the clinical development of our drug candidates, including rezpegaldesleukin and NKTR-255, will continue to require significant investment to continue to advance in clinical development with the objective of obtaining regulatory approval or entering into one or more collaboration partnerships. In the past, we have received a number of significant payments from collaboration agreements and other significant transactions, including $1.9 billion in total consideration received under our arrangement with BMS, development cost reimbursements from BMS, and a $150.0 million upfront payment from Lilly for our collaboration agreement for rezpegaldesleukin. Additionally, certain of our collaboration partners have borne substantial costs of developing our drug candidates. Following the return of our rights to develop rezpegaldesleukin from Lilly, however, unless we enter into a new collaboration agreement, we bear all the costs of developing our pipeline drug candidates, other than our collaborations for NKTR-255 described above.

Current wording

We expect the clinical development of our drug candidates, including rezpegaldesleukin, NKTR-255 and NKTR-0165, will continue to require significant investment to continue to advance in clinical development with the objective of obtaining regulatory approval or entering into one or more collaboration partnerships. In the past, we have received a number of significant payments from collaboration agreements and other significant transactions, including $1.9 billion in total consideration received under our arrangement with Bristol-Myers Squibb Company (BMS), development cost reimbursements from BMS, and a $150.0 million upfront payment from Eli Lilly and Company for our collaboration agreement for rezpegaldesleukin. Additionally, certain of our collaboration partners have borne substantial costs of developing our drug candidates. We expect we will continue our approach of entering into revenue-generating collaboration agreements to pay in whole or in part the development costs of our drug candidates.

Previous wording

whether, when and on what terms we are able to enter into new collaboration transactions; expenses being higher than anticipated, unplanned expenses and the need to satisfy contingent liabilities, including litigation matters and indemnification obligations; and cash receipts, including sublease income, being lower than anticipated.

Current wording

Our current business is subject to significant uncertainties and risks as a result of, among other factors, clinical and regulatory outcomes for rezpegaldesleukin, NKTR-255 and NKTR-0165; the sales levels for those products, if and when they are approved; whether, when and on what terms we are able to enter into new collaboration transactions; expenses being higher than anticipated, unplanned expenses and the need to satisfy contingent liabilities, including litigation matters and indemnification obligations; and cash receipts, including sublease income, being lower than anticipated.

Previous wording

As a result of our 2022 and 2023 Restructuring Plans, we are seeking to sublease all of our laboratory and office space on Mission Bay Blvd. South and our office space on Third St., and we have current subleases for a portion of our laboratory and office spaces on Mission Bay Blvd. South. The San Francisco Bay Area office lease market has been negatively impacted by economic uncertainties, particularly impacting the technology industry, and the change in work habits following the COVID-19 pandemic, as employees continue to work remotely. Accordingly, for our vacant office space on Third St., there is significant uncertainty as to whether or when we will be able to enter into a sublease as well as the economic terms of such subleases, if any. While the San Francisco Bay Area life sciences lease market remained strong during 2022, it has weakened during 2023 and 2024, including a significant increase in available leasable space in the San Francisco Bay Area. Accordingly, there is increased uncertainty as to whether or when we will be able to enter into a sublease as well as the economic terms of such subleases, if any.

Current wording

As a result of our restructuring plans, we are seeking to sublease all of our laboratory and office space in the Mission Bay Facility and our office space in the Third St. Facility, and we have current subleases for a portion of the Mission Bay Facility. The San Francisco Bay Area office lease market has been negatively impacted by economic uncertainties, particularly impacting the technology industry, and the change in work habits, as employees continue to work remotely. Accordingly, for the Third St. Facility, there is significant uncertainty as to whether or when we will be able to enter into a sublease as well as the economic terms of such subleases, if any. Meanwhile, the San Francisco Bay Area life sciences lease market weakened during 2024, including a significant increase in available leasable space in the San Francisco Bay Area. Accordingly, there is increased uncertainty as to whether or when we will be able to enter into a sublease as well as the economic terms of such subleases, if any.

Previous wording

Cash flows used in operating activities for the nine months ended September 30, 2024 and 2023 totaled $129.5 million and $145.6 million, respectively.

Current wording

Cash flows used in operating activities for the three months ended March 31, 2025 and 2024 totaled $49.1 million and $47.9 million, respectively.

Previous wording

During the nine months ended September 30, 2024 and 2023, the maturities and sales of our investments, net of purchases, totaled $83.4 million and $121.6 million, respectively, which we used to fund our operations. Our other investing activities were not significant for the periods presented.

Current wording

During the three months ended March 31, 2025 and 2024, the maturities of our investments, net of purchases, totaled $44.4 million and $19.4 million, respectively, which we used to fund our operations. Our other investing activities were not significant for the periods presented.

Previous wording

Other than the three financing activities described above during the three months ended March 31, 2024, our cash flows from financing activities for the nine months ended September 30, 2024 and 2023 were not significant.

Current wording

Other than the three financing activities described above during the three months ended March 31, 2024, our cash flows from financing activities for the three months ended March 31, 2025 and 2024 were not significant.
Rearranged previous paragraphs (2)

Previous report — wording carried elsewhere

We expect non-cash royalty revenue to decrease for full year 2024 as compared to 2023 due to the decrease in the royalty rate from UCB, and we expect non-cash interest expense to decrease as a result of the lower liability balance.

Previous report — wording carried elsewhere

Our current business is subject to significant uncertainties and risks as a result of, among other factors, clinical and regulatory outcomes for rezpegaldesleukin and NKTR-255; the sales levels for those products, if and when they are approved;