RHYTHM PHARMACEUTICALS, INC.

Previous wording

We are a global, commercial-stage biopharmaceutical company dedicated to transforming the lives of patients living with rare neuroendocrine diseases. We are focused on advancing our melanocortin-4 receptor (MC4R) agonists, including our lead asset, IMCIVREE® (setmelanotide), as precision medicines designed to treat hyperphagia and severe obesity caused by MC4R pathway diseases. While obesity affects hundreds of millions of people worldwide, we are advancing therapies for a subset of individuals who have hyperphagia, a pathological, insatiable hunger and impaired satiety accompanied by persistent and abnormal food-seeking behaviors, decreased energy expenditure and severe obesity due to diseases such as acquired or congenital hypothalamic obesity, Bardet-Biedl syndrome (BBS) or other diseases caused by impaired MC4R pathway signaling. The MC4R pathway is a neuro-endocrine pathway in the brain that is responsible for regulating hunger, caloric intake and energy expenditure, which consequently affect body weight. IMCIVREE, an MC4R agonist for which we hold worldwide rights, is the first-ever therapy developed for patients with certain rare diseases that is approved or authorized in the United States, European Union (EU), United Kingdom, Canada and several other countries and regions.

Current wording

We are a global, commercial-stage biopharmaceutical company dedicated to transforming the lives of patients living with rare neuroendocrine diseases. We are focused on advancing our melanocortin-4 receptor (MC4R) agonists, including our lead asset, IMCIVREE (setmelanotide), as precision medicines designed to treat hyperphagia and severe obesity caused by MC4R pathway diseases. While obesity affects hundreds of millions of people worldwide, we are advancing therapies for a subset of individuals who have hyperphagia, a pathological, insatiable hunger and impaired satiety accompanied by persistent and abnormal food-seeking behaviors, decreased energy expenditure and severe obesity due to diseases such as acquired or congenital hypothalamic obesity, Bardet-Biedl syndrome (BBS) or other diseases caused by impaired MC4R pathway signaling. The MC4R pathway is a neuro-endocrine pathway in the brain that is responsible for regulating hunger, caloric intake and energy expenditure, which consequently affect body weight. IMCIVREE, our most advanced MC4R agonist for which we hold worldwide rights, is the first-ever therapy that is marketed in the United States, European Union (EU), United Kingdom, Canada and several other countries and regions for certain rare MC4R pathway diseases, including BBS. We also are developing two earlier-stage investigational MC4R agonists, bivamelagon (formerly LB54640), an oral small molecule, and RM-718, designed for weekly subcutaneous administration. On February 26, 2026 we announced we completed a positive end-of-Phase-2 meeting with FDA regarding bivamelagon in acquired HO and disclosed open-label extension data from our Phase 2 trial that showed bivamelagon achieved persistent BMI reductions at six and nine months of therapy.

Previous wording

IMCIVREE is approved by the U.S. Food and Drug Administration (FDA) to reduce excess body weight and maintain weight reduction long term in adult and pediatric patients aged 2 years and older with syndromic or monogenic obesity due to BBS or proopiomelanocortin (POMC), proprotein convertase subtilisin/kexin type 1 (PCSK1), or leptin receptor (LEPR) deficiency as determined by an FDA-approved test demonstrating variants in POMC, PCSK1, or LEPR genes that are interpreted as pathogenic, likely pathogenic, or of uncertain significance (VUS). The European Commission (EC) and the United Kingdom’s Medicines & Healthcare Products Regulatory Agency (MHRA) have authorized IMCIVREE for the treatment of obesity and the control of hunger associated with genetically confirmed BBS or loss-of-function biallelic POMC, including PCSK1, deficiency or biallelic LEPR deficiency in adults and children 2 years of age and above. In addition to the United States, we have achieved market access or named patient sales for IMCIVREE for BBS or POMC and LEPR deficiencies, or both, in 15 countries outside the United States, and we continue to collaborate with authorities to achieve access in additional markets.

Current wording

IMCIVREE is approved by the U.S. Food and Drug Administration (FDA) to reduce excess body weight and maintain weight reduction long term in adult and pediatric patients aged 2 years and older with syndromic or monogenic obesity due to BBS or proopiomelanocortin (POMC), proprotein convertase subtilisin/kexin type 1 (PCSK1), or leptin receptor (LEPR) deficiency as determined by an FDA-approved test demonstrating variants in POMC, PCSK1, or LEPR genes that are interpreted as pathogenic, likely pathogenic, or of uncertain significance (VUS). The European Commission (EC) and the United Kingdom’s Medicines & Healthcare Products Regulatory Agency (MHRA) have authorized IMCIVREE for the treatment of obesity and the control of hunger associated with genetically confirmed BBS or loss-of-function biallelic POMC, including PCSK1, deficiency or biallelic LEPR deficiency in adults and children 2 years of age and above. Reviews of our regulatory submissions seeking approval and marketing authorization for setmelanotide as a treatment for acquired hypothalamic obesity are ongoing in the United States and Europe with an FDA-assigned Prescription Drug User Fee Act (PDUFA) goal date of March 20, 2026. We anticipate disclosing topline data from a 12-patient Japanese cohort of our Phase 3 trial evaluating setmelanotide for acquired hypothalamic obesity in March 2026, and pending positive data, completing a new drug application submission in Japan. Regulatory decisions in Europe and Japan are anticipated later in 2026 or 2027.

Previous wording

With our efforts in hypothalamic obesity and other potential indications, we are advancing what we believe is the most comprehensive clinical research and development program ever initiated in MC4R pathway diseases, with multiple ongoing and planned clinical trials. Our MC4R pathway program is designed to expand the total number of patients who we believe could benefit from setmelanotide therapy or from one of our new drug candidates. Our Phase 3 EMANATE trial, comprised of four independent substudies evaluating setmelanotide in genetically caused MC4R pathway diseases is ongoing. Following the completion of our Phase 2 DAYBREAK trial, we identified six genetically-defined cohorts that we believe merit further investigation for potential setmelanotide efficacy. We also are evaluating setmelanotide for the treatment of Prader-Willi syndrome (PWS) in a 26-week, open-label Phase 2 trial which was initiated at a single site in the United States during the first quarter of 2025.

Current wording

We are advancing what we believe is the most comprehensive clinical research and development program ever initiated in MC4R pathway diseases, with setmelanotide, bivamelagon and RM-718 in multiple ongoing and planned clinical trials. Our MC4R pathway program is designed to expand the total number of patients who we believe could benefit from setmelanotide therapy or from one of our new drug candidates. Our Phase 3 EMANATE trial, comprised of four independent substudies evaluating setmelanotide in genetically caused MC4R pathway diseases, is ongoing with topline data expected in March 2026. Following the completion of our Phase 2 DAYBREAK trial, we identified six genetically-defined cohorts that we believe merit further investigation for potential setmelanotide efficacy.

Previous wording

with severe obesity due to certain variants in genes associated with the MC4R pathway. Our sequencing-based epidemiology estimates show that each of these genetically-defined MC4R pathway deficiencies are considered rare diseases, according to established definitions based on patient populations. Our epidemiology estimates are approximately 4,600 to 7,500 for U.S. patients in initial FDA-approved indications, including obesity due to BBS and biallelic POMC, PCSK1 or LEPR deficiencies. Our epidemiology estimates for the two more prevalent indications being studied in our Phase 3 EMANATE trial (SH2B1 and POMC/PCSK1) suggest that approximately 29,000 U.S. patients with one of these genetically driven obesities have the potential to respond well to setmelanotide. Similarly, our epidemiology estimates for patients with genetic indications who demonstrated an initial response following stage 1 of our Phase 2 DAYBREAK trial is approximately 65,300. All these patients face similar challenges as other patients with rare diseases, namely lack of awareness, resources, tests, tools and, especially, therapeutic options.

Current wording

We are leveraging what we believe is the largest known DNA database focused on obesity - with approximately 120,000 sequencing samples as of December 31, 2025 - to improve the understanding, diagnosis and care of people living with severe obesity due to certain variants in genes associated with the MC4R pathway. Our sequencing-based epidemiology estimates show that each of these genetically-defined MC4R pathway deficiencies we are focused on are considered rare diseases, according to established definitions based on patient populations. Our epidemiology estimates are approximately 4,600 to 7,500 for U.S. patients in initial FDA-approved indications, including obesity due to BBS and biallelic POMC, PCSK1 or LEPR deficiencies. Our epidemiology estimates for the two more prevalent indications being studied in our Phase 3 EMANATE trial (SH2B1 and POMC/PCSK1) suggest that approximately 29,000 U.S. patients with one of these genetically driven obesities have the potential to respond well to setmelanotide. Similarly, our epidemiology estimates for patients with genetic indications who demonstrated an initial response in our Phase 2 DAYBREAK trial is approximately 65,300. All these patients face similar challenges to other patients with rare diseases, namely lack of awareness, resources, tests, tools and especially therapeutic options.

Previous wording

We expect to continue to fund our operations through the sale of equity, debt financings or other sources. We have built our own marketing and commercial sales infrastructure in the United States and are in the process of building a similar infrastructure in several European markets and the United Kingdom. We may enter into collaborations with other parties for certain markets outside the United States. However, we may be unable to raise additional funds or enter into such other arrangements when needed on favorable terms, or at all. If we fail to raise capital or enter into such other arrangements as, and when, needed, we may have to significantly delay, scale back or discontinue the development or commercialization of setmelanotide.

Current wording

Since our inception, we have raised funds through the issuance of common and preferred equity, the sale of assets and a Revenue Interest Financing Agreement, or RIFA. We expect to continue to fund our operations through the sale of equity, debt financings or other sources. We have built our own marketing and commercial sales infrastructure in the United States and are in the process of building a similar infrastructure in several European markets and the United Kingdom. We may enter into collaborations with other parties for certain markets outside the United States. However, we may be unable to raise additional funds or enter into such other arrangements when needed on favorable terms, or at all. If we fail to raise capital or enter into such other arrangements as, and when, needed, we may have to significantly delay, scale back or discontinue the development or commercialization of setmelanotide.

Previous wording

As of December 31, 2024, we had an accumulated deficit of $1,155.3 million. Our net losses were $260.6 million and $184.7 million for the years ended December 31, 2024 and 2023, respectively. We expect to continue to incur significant expenses and increasing operating losses over the foreseeable future. We expect our expenses will increase substantially in connection with our ongoing activities, as we:

Current wording

As of December 31, 2025, we had an accumulated deficit of $1.4 billion. Our net losses were $196.5 million and $260.6 million for the years ended December 31, 2025 and 2024, respectively. We expect to continue to incur significant expenses and increasing operating losses over the foreseeable future. We expect our expenses will increase substantially in connection with our ongoing activities, as we:

Previous wording

As of December 31, 2024, our cash and cash equivalents and short-term investments were approximately $320.6 million. We expect that our cash and cash equivalents and short-term investments as of December 31, 2024, will enable us to fund our operating expenses into 2027.

Current wording

As of December 31, 2025, our cash and cash equivalents and short-term investments were approximately $388.9 million. We expect that our cash and cash equivalents and short-term investments as of December 31, 2025, will enable us to fund our operations for at least 24 months.

Previous wording

To date, we have generated approximately $227.6 million of revenue from product sales. Our lead product candidate, IMCIVREE, was approved by the FDA in November 2020 for chronic weight management in adult and pediatric patients six years of age and older with obesity due to POMC, PCSK1 or LEPR deficiency confirmed by genetic testing. IMCIVREE became commercially available in the United States in the first quarter of 2021. We recorded our first sales of IMCIVREE in the United States in March 2021 and we made our first sales in France in March 2022 under the paid early access program. IMCIVREE was approval by the FDA and the EC in adult and pediatric patients six years of age and older with obesity due to BBS in June and September 2022, respectively. Following these approvals for BBS, sales of IMCIVREE have grown, and we expect will continue to grow as we identify and treat more patients with this disease and obtain reimbursement throughout the international markets in which we operate.

Current wording

To date, we have generated approximately $422.5 million of revenue from product sales. Our lead product candidate, IMCIVREE, was approved by the FDA in November 2020 for chronic weight management in adult and pediatric patients six years of age and older with obesity due to POMC, PCSK1 or LEPR deficiency confirmed by genetic testing. IMCIVREE became commercially available in the United States in the first quarter of 2021. We recorded our first sales of IMCIVREE in the United States in March 2021 and we made our first sales in France in March 2022 under the paid early access program. IMCIVREE was approved by the FDA and the EC in adult and pediatric patients six years of age and older with obesity due to BBS in June and September 2022, respectively. Following these initial approvals, sales of IMCIVREE have grown, and we expect will continue to grow.

Previous wording

Selling expenses consist of professional fees related to preparation for the commercialization of setmelanotide as well as salaries and related benefits for commercial employees, including stock-based compensation. As we further implement and execute our commercialization plans to market setmelanotide in new territories and as we explore new collaborations to develop and commercialize setmelanotide, we anticipate that these expenses will materially increase.

Current wording

Selling expenses consist of professional fees related to preparation for the continued commercialization of setmelanotide as well as salaries and related benefits for commercial employees, including stock-based compensation. As we further implement and execute our commercialization plans to market setmelanotide in new territories and as we explore new collaborations to develop and commercialize setmelanotide, we anticipate that these expenses will materially increase.

Previous wording

General and administrative expenses consist primarily of salaries and other related costs, including stock-based compensation, relating to our full-time employees not involved in R&D or commercial activities. Other significant costs include rent, legal fees relating to patent and corporate matters and fees for accounting and consulting services.

Current wording

General and administrative expenses consist primarily of salaries and other related costs, including stock-based compensation, relating to our full-time employees not involved in R&D or commercial activities. Other significant costs include rent, information technology, legal fees relating to patent and corporate matters and fees for accounting and consulting services.

Previous wording

In accordance with Accounting Standards Codification (ASC) 606, Revenue from Contracts with Customers, we recognize revenue when a customer obtains control of promised goods or services, in an amount that reflects the consideration we expect to receive in exchange for the goods or services provided. To determine revenue recognition for arrangements within the scope of ASC 606, we perform the following five steps: (1) identify the contracts with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract; and (5) recognize revenue when or as the entity satisfies a performance obligation. At contract inception, we assess the goods or services promised within each contract and determine those that are performance obligations and assess whether each promised good or service is distinct. We then recognize as revenue the amount of the transaction price that is allocated to the respective performance obligation when or as the performance obligation is satisfied. For all contracts that fall into the scope of ASC 606, we have identified one performance obligation: the sale of IMCIVREE to our customers. We have not incurred or capitalized any incremental costs associated with obtaining contracts with customers.

Current wording

(2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract; and (5) recognize revenue when or as the entity satisfies a performance obligation. At contract inception, we assess the goods or services promised within each contract and determine those that are performance obligations and assess whether each promised good or service is distinct. We then recognize as revenue the amount of the transaction price that is allocated to the respective performance obligation when or as the performance obligation is satisfied. For all contracts that fall into the scope of ASC 606, we have identified one performance obligation: the sale of IMCIVREE to our customers. We have not incurred or capitalized any incremental costs associated with obtaining contracts with customers.

Previous wording

In the United States, which accounts for the largest portion of our total revenues, the Company sells its product to one material specialty pharmacy. The product is distributed through third-party logistics, or 3PL, distribution agent that does not take title to the product. Once the product is delivered to the Company’s specialty pharmacy provider, our customer in the United States, the customer (or “wholesaler”) takes title to the product. The wholesaler then distributes the product to patients. In our distribution agreement with the 3PL company, the Company acts as principal because we retain control of the product. Internationally, we make sales primarily to specialty distributors and retail pharmacy chains, as well as hospitals, many of which are government-owned or supported. The Company offers returns of product sold to the customer on a limited basis, however, no material returns have been recognized to date.

Current wording

In the United States, which accounts for the largest portion of our total revenues, the Company sells its product through a specialty pharmacy. The product is distributed through a third-party logistics, or 3PL, distribution agent that does not take title to the product. Once the product is delivered to the Company’s specialty pharmacy provider, our customer in the United States, the customer (or “wholesaler”) takes title to the product. The wholesaler then distributes the product to patients. In our distribution agreement with the 3PL company, the Company acts as principal because we retain control of the product. Internationally, we make sales primarily to specialty distributors and retail pharmacy chains, as well as hospitals, many of which are government-owned or supported. The Company offers returns of product sold to the customer on a limited basis, however, no material returns have been recognized to date.

Previous wording

We maintain the Rhythm Pharmaceuticals, Inc. 2017 Equity Incentive Plan, (the “2017 Plan”) which provides for the grant of incentive stock options, non-qualified stock options, stock appreciation rights, performance units, restricted stock awards, restricted stock units and stock grants to employees, consultants, advisors and directors, as determined by the board of directors. As of December 31, 2024, we had reserved 12,475,344 shares of common stock under the 2017 Plan. Shares of common stock issued pursuant to awards are generally issued from authorized but unissued shares. The 2017 Plan provides that the exercise price of incentive stock options cannot be less than 100% of the fair market value of the common stock on the date of the award for participants who own less than 10% of the total combined voting power of stock, and not less than 110% for participants who own more than 10% of the voting power. Awards granted under the 2017 Plan will vest over periods as determined by our Compensation Committee and approved by our board of directors.

Current wording

We maintain the Rhythm Pharmaceuticals, Inc. 2017 Equity Incentive Plan, (the “2017 Plan”) which provides for the grant of incentive stock options, non-qualified stock options, stock appreciation rights, performance units, restricted stock awards, restricted stock units and stock grants to employees, consultants, advisors and directors, as determined by the board of directors. As of December 31, 2025, we had reserved 13,717,040 shares of common stock under the 2017 Plan. Shares of common stock issued pursuant to awards are generally issued from authorized but unissued shares. The 2017 Plan provides that the exercise price of incentive stock options cannot be less than 100% of the fair market value of the common stock on the date of the award for participants who own less than 10% of the total combined voting power of stock, and not less than 110% for participants who own more than 10% of the voting power. Awards granted under the 2017 Plan will vest over periods as determined by our Compensation Committee and approved by our board of directors.

Previous wording

The exercise price of stock options granted under the 2022 Inducement Plan will not be less than the fair market value of a share of our common stock on the grant date. Other terms of awards, including vesting requirements, are determined by our board of directors and are subject to the provisions of the 2022 Inducement Plan. Stock options granted to employees generally vest over a four-year period but may be granted with different vesting terms. Certain options may provide for accelerated vesting in the event of a change in control. Stock options granted under the 2022 Inducement Plan expire no more than 10 years from the date of grant. As of December 31, 2024, there were 495,978 stock option awards outstanding, 317,554 restricted stock unit awards outstanding and 14,586 shares of common stock available for future grant under the 2022 Inducement Plan.

Current wording

The exercise price of stock options granted under the 2022 Inducement Plan will not be less than the fair market value of a share of our common stock on the grant date. Other terms of awards, including vesting requirements, are determined by our board of directors and are subject to the provisions of the 2022 Inducement Plan. Stock options granted to employees generally vest over a four-year period but may be granted with different vesting terms. Certain options may provide for accelerated vesting in the event of a change in control. Stock options granted under the 2022 Inducement Plan expire no more than 10 years from the date of grant. As of December 31, 2025, there were 371,148 stock option awards outstanding, 194,419 restricted stock unit awards outstanding and 59,067 shares of common stock available for future grant under the 2022 Inducement Plan.

Previous wording

We estimate the fair value of our stock option awards to employees and non-employees using the Black-Scholes option-pricing model, which requires the input of subjective assumptions, including (a) the expected volatility of our stock, (b) the expected term of the award, (c) the risk-free interest rate, and (d) expected dividends. Due to the lack of a public market for the trading of our common stock and a lack of company-specific historical and implied volatility data, we previously based our estimate of expected volatility on the historical volatility of a group of companies in the pharmaceutical and biotechnology industries in a similar stage of development as us and that are publicly traded. For these analyses, we selected companies with comparable characteristics to ours including enterprise value, risk profiles and with historical share price information sufficient to meet the expected life of the stock-based awards. We computed the historical volatility data using the daily closing prices for the selected companies' shares during the equivalent period of the

Current wording

We estimate the fair value of our stock option awards to employees and non-employees using the Black-Scholes option-pricing model, which requires the input of subjective assumptions, including (a) the expected volatility of our stock, (b) the expected term of the award, (c) the risk-free interest rate, and (d) expected dividends. Due to the lack of a public market for the trading of our common stock and a lack of company-specific historical and implied volatility data, we previously based our estimate of expected volatility on the historical volatility of a group of companies in the pharmaceutical and biotechnology industries in a similar stage of development as us and that are publicly traded. For these analyses, we selected companies with comparable characteristics to ours including enterprise value, risk profiles and with historical share price information sufficient to meet the expected life of the stock-based awards. We computed the historical volatility data using the daily closing prices for the selected companies' shares during the equivalent period of the calculated expected term of our stock-based awards. We estimate volatility by using a blend of our stock price history for the length of time we have market data for our stock and the historical volatility of similar public companies for the expected term of each grant. We will continue to apply this process until a sufficient amount of historical information regarding the volatility of our own stock price becomes available.

Previous wording

Product revenue, net increased by $52.7 million to $130.1 million in 2024 from $77.4 million in 2023, an increase of 68%. We expect our sales of IMCIVREE to continue to increase following the FDA approval for the treatment of patients with BBS in the United States in June 2022. We have achieved market access for IMCIVREE for BBS or POMC and LEPR deficiencies, or both, in more than 15 countries outside the United States, and we continue to collaborate with authorities to achieve access in additional markets. For the years ended December 31, 2024 and 2023, a substantial amount of our product revenue, or 74% and 77%, respectively, was generated from sales of our product to patients in the United States.

Current wording

Product revenue, net increased by$64.6 millionto$194.8 million in 2025 from$130.1 million in 2024, an increase of 50%, due primarily to higher volume of product sold both domestically and internationally. We expect our sales of IMCIVREE to continue to increase. We have achieved market access for IMCIVREE for BBS or POMC and LEPR deficiencies, or both, in more than 25 countries outside the United States, and we continue to collaborate with authorities to achieve access in additional markets. For the years ended December 31, 2025 and 2024, a substantial amount of our product revenue, or 69% and 74%, respectively, was generated from sales of our product to patients in the United States.

Previous wording

*Cost of sales.*Cost of sales increased by $4.1 million to $13.4 million in 2024 from $9.3 million in 2023, an increase of 44%, which was driven primarily by the increase in product revenue in 2024. Cost of sales is composed of royalty expense due to Ipsen on our net product sales, amortization of our capitalized sales-based milestone payment made to Ipsen, upon our first commercial sale in the United States and EU, the cost of product, as well as costs associated with our patient assistance programs. Specifically, the $4.1 million increase in cost of sales in 2024 was due to $2.6 million of additional royalties due to our growth in sales and $1.5 milliondue to higher product costs from higher net product revenue. We expect cost of sales as a percentage of product revenue, net to continue to be in a range of 10% to 12% in foreseeable future.

Current wording

Cost of sales. Cost of sales increased by $6.1 million to $19.5 million in 2025 from $13.4 million in 2024, an increase of 46%, which was driven primarily by the increase in product revenue in 2025. Cost of sales is composed of royalty expense due to Ipsen on our net product sales, amortization of our capitalized sales-based milestone payment made to Ipsen, upon our first commercial sale in the United States and EU, the cost of product, as well as costs associated with our patient assistance programs. Specifically, the $6.1 million increase in cost of sales in 2025 was due to $3.2 million of additional royalties due to our growth in sales and $2.9 million due to higher product costs from higher net product revenue. We expect cost of sales as a percentage of product revenue, net to continue to be in a range of 10% to 12% in foreseeable future.

Previous wording

*Research and development expense.*Research and development expense increased by $103.0 million to $238.0 million in 2024 from $135.0 million in 2023, an increase of 76%. The increase was primarily due to the following:

Current wording

Research and development expense. Research and development expense decreased by $70.6 million to $167.3 million in 2025 from $238.0 million in 2024, a decrease of 30%. The net decrease was primarily due to the following:

Previous wording

*Selling, general and administrative expense.*Selling, general and administrative expense increased by $26.8 million to $144.3 million in 2024 from $117.5 million in 2023, an increase of 23%. The increase was primarily due to the following:

Current wording

Selling, general and administrative expense. Selling, general and administrative expense increased by $50.6 million to $194.9 million in 2025 from $144.3 million in 2024, an increase of 35%. The increase was primarily due to the following:

Previous wording

*Other income (expense), net.*Other income (expense), net increased by $5.0 million to $5.2 million in 2024 from $0.2 million in 2023, which was due to the following:

Current wording

Other income (expense), net. During the year ended December 31 2025, we incurred $(4.0) million in other expense, compared to $5.2 million of other income in 2024. This change of $(9.3) million was due to the following:

Previous wording

Net cash used in operating activities was $136.2 million for the year ended December 31, 2023, and consisted primarily of a net loss of $184.7 million adjusted for non-cash items of $38.0 million, which consisted of stock-based compensation, depreciation and amortization, non-cash rent expense, accretion and amortization of our short-term investments and the change in the fair value of our embedded derivative liability. Our net loss also included $5.7 million of acquired IPR&D assets, which are classified as investing activities. The change in operating assets and liabilities reflected a total net source of cash of approximately $4.8 million primarily driven by a net increase in accounts payable and accrued expenses of $14.8 million, decreases in long term assets of $1.7 million and decreases in prepaid expenses and other current assets of $2.7 million. The net cash sources described above were partially offset by net cash uses from increases in accounts receivable and inventory totaling $14.4 million, based on the ongoing growth in the business.

Current wording

Net cash used in operating activities was $115.7 million for the year ended December 31, 2025, and consisted primarily of a net loss of $196.5 million adjusted for $81.8 million of non-cash charges, which consisted of stock-based compensation, depreciation and amortization, non-cash interest expense, non-cash accretion and amortization of short-term investments, non-cash rent expense, and the change in the fair value of our embedded derivative liability, which we expect to continue to have these add-backs to net income. Additionally, the change in operating assets and liabilities used net cash of approximately $1.0 million, and was primarily driven by total net increases of accounts receivable of $7.6 million, which corresponds to the increase in our revenue, $7.5 million increase in inventory as we work to build up our supply ahead of anticipated demand, and an increase of $6.3 million in prepaid expenses and other current assets due primarily to prepayments being reclassed from long-term to short-term, offset by total net increases to accounts payable and accrued expenses of $21.9 million primarily driven by the increase in our sales allowance for pricing rebates as our revenue continues to grow.

Previous wording

Net cash used in operating activities was $113.9 million for the year ended December 31, 2024, and consisted primarily of a net loss of $260.6 million adjusted for non-cash items of $43.8 million, which consisted of stock-based compensation, depreciation and amortization, non-cash interest expense, non-cash accretion and amortization of short-term investments, non-cash accretion of other current liability, non-cash rent expense, gain on settlement of forward contract, and the change in the fair value of our embedded derivative liability. Our net loss also included $92.4 million of acquired In-Process Research and Development (IPR&D) assets, which are classified as investing activities. The change in operating assets and liabilities provided net cash of approximately $10.6 million, primarily driven by increases to accounts payable and accrued expenses of $21.9 million, net decreases in long-term assets of $7.9 million, offset by net increases in accounts receivable and inventory of $13.8 million and net increases to prepaid expenses of $5.5 million.

Current wording

Net cash used in operating activities was $113.9 million for the year ended December 31, 2024, and consisted primarily of a net loss of $260.6 million adjusted for non-cash items of $43.8 million, which consisted of stock-based compensation, depreciation and amortization, non-cash interest expense, non-cash accretion and amortization of short-term investments, non-cash rent expense, gain on settlement of forward contract, and the change in the fair value of our embedded derivative liability. Our net loss also included $92.4 million of acquired In-Process Research and Development (IPR&D) assets, which are classified as investing activities. The change in operating assets and liabilities provided net cash of approximately $10.6 million, primarily driven by increases to accounts payable and accrued expenses of $21.9 million, net decreases in long-term assets of $7.9 million, offset by net increases in accounts receivable and inventory of $13.8 million and net increases to prepaid expenses of $5.5 million.

Previous wording

Net cash provided by financing activities was $74.4 million for the year ended December 31, 2023, which consisted of net proceeds of $48.9 million from the issuance of common stock in August 2023, net proceeds of $24.4 million from the final investment tranche of our deferred royalty obligation and $8.5 million of cash proceeds from the exercise of stock options and the issuance of common stock from the ESPP. These proceeds were partially offset by $7.4 million of repayments of our deferred royalty obligation.

Current wording

Net cash provided by financing activities was $218.0 million for the year ended December 31, 2025, which consisted of net proceeds of $188.7 million from a follow-on offering of our common stock in July 2025, and net proceeds from our ATM equity offering of $34.0 million. We also received proceeds of $15.2 million from the exercise of stock options and the issuance of common stock from our 2017 Employee Stock Purchase Plan. These proceeds were offset by $19.9 million of repayments of our deferred royalty obligation.

Previous wording

Net cash provided by financing activities was $191.2 million for the year ended December 31, 2024, and consisted of net proceeds of $147.8 million from the issuance of Convertible Perferred Stock as well as net proceeds from our ATM equity offering of $39.1 million. We also received proceeds of $17.2 million from the exercise of stock options and the issuance of common stock from our 2017 Employee Stock Purchase Plan, or the ESPP. These proceeds were offset by $12.9 million of repayments on our deferred royalty obligation.

Current wording

Net cash provided by financing activities was $191.2 million for the year ended December 31, 2024, and consisted of net proceeds of $147.8 million from the issuance of Convertible Preferred Stock as well as net proceeds from our ATM equity offering of $39.1 million. We also received proceeds of $17.2 million from the exercise of stock options and the issuance of common stock from our 2017 Employee Stock Purchase Plan. These proceeds were offset by $12.9 million of repayments of our deferred royalty obligation.

Previous wording

We expect that our existing cash and cash equivalents and short-term investments will be sufficient to fund our operations into 2027. Our cash and cash equivalents are maintained at financial institutions in amounts that exceed federally-insured limits. In the event of failure of any of the financial institutions where we maintain our cash and cash equivalents, there can be no assurance that we will be able to access uninsured funds in a timely manner or at all.

Current wording

We expect that our existing cash and cash equivalents and short-term investments will be sufficient to fund our operations for at least 24 months from the date of filing of this Annual Report on Form 10-K. Our cash and cash equivalents are maintained at financial institutions in amounts that exceed federally-insured limits. In the event of failure of any of the financial institutions where we maintain our cash and cash equivalents, there can be no assurance that we will be able to access uninsured funds in a timely manner or at all.

Previous wording

Beginning on December 10, 2024 the company sold 744,595 shares of common stock in the ATM program for net proceeds of $41.2 million as of December 31, 2024. The company sold an additional 587,510 shares of common stock in the ATM program through January 21, 2025 for net proceeds of approximately $32.1 million.

Current wording

From December 10, 2024 to December 31, 2024, the Company sold 744,595 shares of common stock in the ATM Program for net proceeds of $41.2 million as of December 31, 2024. The Company sold an additional 587,510 shares of common stock in the ATM Program from January 1, 2025 through January 21, 2025 for net proceeds of approximately $32.1 million in the quarter ending March 31, 2025.

Previous wording

In April 2024, we received $147.8 million in net proceeds under the Investment Agreement, with certain affiliates of Perceptive Advisors LLC, or Perceptive, and certain other investors, relating to the issuance and sale of 150,000 shares of a new series of the Company’s Convertible Preferred Stock for an aggregate purchase price of $150.0 million, or $1,000 per share.

Current wording

In April 2024, we received $147.8 million in net proceeds under the Investment Agreement, with certain affiliates of Perceptive Advisors LLC, or Perceptive, and certain other investors, relating to the issuance and sale of 150,000 shares of a new series of the Company’s Convertible Preferred Stock for an aggregate purchase price of $150.0 million, or $1,000 per share - see Note 9 to our consolidated financial statements -Series A Convertible Preferred Stock for additional information.

Previous wording

Milestone and royalty payments associated with our license agreements with Ipsen, Camurus, and LG Chem, have not been included as contractual obligations as we cannot reasonably estimate if or when they will occur. Under the terms of the Ipsen license agreement, assuming that setmelanotide is successfully developed, receives regulatory approval and is commercialized, Ipsen may receive aggregate payments of up to $40.0 million upon the achievement of certain development and commercial milestones under the license agreement and royalties on future product sales and at December 31, 2024 there were $27.0 million of remaining milestones that may be achieved and due to Ipsen at a future date. During 2022, we paid Ipsen a $4.0 million milestone upon our first commercial sale of IMCIVREE in Europe. We did not make additional milestone payments to Ipsen during 2023 or 2024. In the event that we enter into a sublicense agreement, we will make payments to Ipsen, depending on the date of the sublicense agreement, ranging from 10% to 20% of all revenues actually received under the sublicense agreement.

Current wording

Future milestone and royalty payments associated with our license agreements with Ipsen, Camurus, and LG Chem, have not been included as contractual obligations as we cannot reasonably estimate if or when they will occur. Under the terms of the Ipsen license agreement, Ipsen may receive aggregate payments of up to $40.0 million upon the achievement of certain development and commercial milestones under the license agreement and royalties on future product sales and at December 31, 2025 there were $27.0 million of remaining milestones that may be achieved and due to Ipsen at a future date. We did not make milestone payments to Ipsen during 2023, 2024 or 2025.

Previous wording

Under the terms of the Camurus license agreement, assuming that the weekly formulation of setmelanotide is successfully developed, receives regulatory approval and is commercialized, Camurus may receive aggregate payments of up to $64.8 million upon the achievement of certain development and commercial milestones under the license agreement and royalties on future product sales. As of December 31, 2024, there were $62.5 million of remaining milestones that may be achieved and for which Camurus would receive payment at a future date. We paid Camurus a $1.0 million milestone in 2022 upon the achievement of a development milestone. We did not make any milestone payments to Camurus during 2023 or 2024. The majority of the aggregate payments under the Camurus license agreement are for milestones that may be achieved no earlier than first commercial sale of this weekly formulation of setmelanotide.

Current wording

Under the terms of the Camurus license agreement, assuming that the weekly formulation of setmelanotide is successfully developed, receives regulatory approval and is commercialized, Camurus may receive aggregate payments of up to $64.8 million upon the achievement of certain development and commercial milestones under the license agreement and royalties on future product sales. As of December 31, 2025, there were $62.5 million of remaining milestones that may be achieved and for which Camurus would receive payment at a future date. We did not make milestone payments to Camurus during 2023, 2024 or 2025.

Previous wording

Under the terms of the LG Chem license agreement, we have paid LG Chem $40 million in cash, issued shares of our common stock with an aggregate value of $20 million and agreed to make a $40 million payment in cash 18 months after the effective date of the license agreement. We have also agreed to pay LG Chem up to $205 million in cash upon achieving various regulatory and sales milestones based on net sales ofbivamelagon. In addition and subject to the completion of Phase 2 development ofbivamelagon, the Company has agreed to pay LGC royalties of between low-to-mid single digit percent of net revenues from its MC4R portfolio, including bivamelagon, commencing in 2029 and dependent upon achievement of various regulatory and indication approvals, and subject to customary deductions and anti-stacking. Royalties may further increase to a low double digit percent royalty, though such royalty would only be applicable on net sales ofbivamelagon in a region ifbivamelagon is covered by a composition of matter or method of use patent controlled by LGC in such region and the Company’s MC4R portfolio is not covered by any composition of matter or method of use patents controlled by the Company in such region. Such increased rate would only apply on net sales ofbivamelagon for the limited remainder of the royalty term in the relevant region. We entered into this agreement in 2024 and have not yet made any milestone payments.

Current wording

Under the terms of the LG Chem license agreement, we have paid LG Chem $80 million in cash and issued shares to them of our common stock with an aggregate value of $20 million. We have also agreed to pay LG Chem up to $205 million in cash upon achieving various regulatory milestones and sales milestones based on net sales of bivamelagon. In addition and subject to the completion of Phase 2 development of bivamelagon, the Company has agreed to pay LGC royalties of between low-to-mid single digit percent of net revenues from its MC4R portfolio, including bivamelagon, commencing in 2029 and dependent upon achievement of various regulatory and indication approvals, and subject to customary deductions and anti-stacking. Royalties may further increase to a low double digit percent royalty, though such royalty would only be applicable on net sales of bivamelagon in a region if bivamelagon is covered by a composition of matter or method of use patent controlled by LGC in such region and the Company’s MC4R portfolio is not covered by any composition of matter or method of use patents controlled by the Company in such region. Such increased rate would only apply on net sales of bivamelagon for the limited remainder of the royalty term in the relevant region. We entered into this agreement in 2024 and have not yet made any milestone payments.

Previous wording

Based on our current development plans as of December 31, 2024, we expect to make milestone payments to third parties, during the next 12 months from the filing of this Annual Report. These milestones include a $40.0 million payment to LG Chem in July of 2025 (which is the second and final license fee installment, payable to LGC within eighteen (18) months of the effective date of the LG Chem license agrreement) and a $2.0 million payment to the sellers of Xinvento upon the commencement of Good Laboratory Practice (GLP) toxicity trials (currently expected to begin in 2025. Milestones generally become due and payable upon achievement of such milestones or sales. When the achievement of these milestones or sales have not occurred, such contingencies are not recorded in our financial statements and are excluded from the table below.

Current wording

Based on our current development plans as of December 31, 2025, we expect to make a $2.0 million milestone payment to the sellers of Xinvento upon the commencement of good laboratory practices toxicity trials (currently expected to begin in 2026). Milestones generally become due and payable upon achievement of such milestones or sales. When the achievement of these milestones or sales have not occurred, such contingencies are not recorded in our financial statements and are excluded from the table below.