Skip to main content

Kymera Therapeutics Inc

For the period ended Dec 31, 2024. Filed Feb 27, 2025.

View on SEC.gov

About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2024 · Filed Feb 27, 2025

KYMR$131.73+2.8%Stored close · as of Nov 6, 2026

What changed in Management’s Discussion and Analysis?

Read the current filing

Previous report: 10-K

Period ended 2023-12-31; filed 2024-02-22.

0000950170-24-018414

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Current report: 10-K

Period ended 2024-12-31; filed 2025-02-27.

0000950170-25-028355

Item 7. 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 165 previous paragraphs and 168 current paragraphs.

130 unchanged; 26 reworded; 10 added; 8 removed; 1 previous and 2 current paragraphs rearranged.

Tables are not compared: 5 previous and 5 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 (10)

Current report

We are a clinical-stage biopharmaceutical company dedicated to reinventing the treatment of human disease through the development of innovative, highly differentiated medicines that address significant health problems and that meaningfully improve patients’ lives. We are committed to advancing novel technologies to address targets that have known disease-causing biology, but which have not been drugged, or have been inadequately drugged, often based on limitations of existing technologies. Our approach is intended to discover and develop a new generation of medicines in a disease-agnostic manner.

Current report

We are a leader in targeted protein degradation, or TPD, a next-generation small molecule therapeutic modality that engages the body’s natural cellular recycling system to selectively eliminate disease-causing proteins. Our objective is to develop molecules that are both potent and highly selective, creating the potential for our medicines to uniquely address diseases that are poorly served by current treatment options. To date, we have progressed five programs into clinical development and expect to advance at least one new molecular entity into clinical testing annually. We intend to leverage our drug development expertise to become a fully integrated biopharmaceutical company with an industry-leading pipeline of novel medicines.

Current report

Our current focus is primarily directed at high-value targets in immunology. We believe there are more than 160 million patients in the United States, Europe and Japan that are diagnosed with some of the most prevalent immune-inflammatory diseases that our programs are designed to address, nearly half of whom remain untreated. Of those treated, most patients are treated with therapies that do not treat the underlying diseases but mostly their symptoms. As a result, only a small percentage of patients, which we believe to be approximately 3% of the diagnosed population with severe inflammatory diseases, are currently treated with systemic advanced therapies, mostly injectable biologics. While generally efficacious, biologics have drawbacks. Biologics tend to be more expensive to manufacture, and the cost is typically passed on to patients and payors. Patient access to therapy can also be a challenge, as biologics are more complex to prescribe and reimburse than small molecule medicines. Additionally, biologics are administered as injections, a less preferred route of administration for patients as compared to oral medications, which offer greater flexibility for patients. We believe we have the potential to deliver a compelling value proposition to a significant underserved patient population: small molecule medicines with biologics-like activity through the convenience of oral administration of a pill.

Current report

Our publicly disclosed immunology programs target STAT6, TYK2 and IRAK4, each of which addresses targets within validated pathways, providing the opportunity to treat a broad range of diseases. We are developing KT-621 as part of our STAT6 program, which is currently being evaluated in a Phase 1 clinical trial in healthy volunteers. Our lead molecule in our TYK2 program is KT-295, which we anticipate will enter the clinic in the second quarter of 2025. We are collaborating with Sanofi S.A., or Sanofi, on the development of drug candidates targeting IRAK4, including KT-474/SAR444656, outside of oncology and immuno-oncology fields. Sanofi has initiated two Phase 2b clinical trials of KT-474 in patients with hidradenitis suppurativa (HS) and in patients with atopic dermatitis (AD). Our pipeline focuses on addressing high impact targets that have been elusive to conventional modalities and that drive the pathogenesis of multiple serious diseases with significant unmet medical needs.

Current report

In addition to our immunology focus, we also have research initiatives in other therapeutic areas. Additionally, we believe many of our key discovery and development capabilities have broad applicability, creating an opportunity for us to develop impactful therapeutics leveraging small-molecule modalities in addition to TPD.

Current report

costs incurred under agreements with third parties, including contract research organizations, or CROs, and other third parties that conduct clinical trials and preclinical activities on our behalf;

Current report

Research and development expenses were $240.2 million for the year ended December 31, 2024, compared to $189.1 million for the year ended December 31, 2023. The increase of $51.2 million was primarily due to an increase of $58.4 million in costs related to our STAT6, TYK2 and MDM2 programs, as well as an increase of $21.1 million in personnel, stock-based compensation and occupancy costs due to increases in employee headcount in our research and development functions. These increases were partially offset by a $10.9 million reduction in activities related to our IRAK4 and STAT3 programs and a $17.4 million reduction in our other research and development costs due to stage progression and breakout of STAT6 and TYK2 programs.

Current report

Impairment of long-lived assets was $4.9 million for the year ended December 31, 2024, compared to $0 for year ended December 31, 2023. The increase of $4.9 million was as a result of the occupancy of the 2021 Lease facility in February of 2024 and the corresponding exit of the 2019 Lease facility, resulting in an impairment charge of $4.9 million in the year ended December 31, 2024.

Current report

During the year ended December 31, 2024, net cash provided by financing activities was $608.9 million, consisting of $547.9 million in proceeds from issuance of common stock and accompanying pre-funded warrants, net of offering costs, $48.7 million in proceeds from the issuance of common stock through the Cowen Sales Agreement, net of issuance costs, $11.8 million in proceeds from the exercise of employee stock options, $2.0 million from proceeds from the employee stock purchase plan, partially offset by finance lease payments of $1.6 million.
Removed paragraphs (8)

Previous report

We are a biopharmaceutical company focused on discovering and developing novel small molecule therapeutics that selectively degrade disease-causing proteins by harnessing the body’s own natural protein degradation system. Our proprietary targeted protein degradation, or TPD, platform, which we refer to as Pegasus™, allows us to discover highly selective small molecule protein degraders with activity against disease-causing proteins throughout the body. We believe that our small molecule protein degraders have unique advantages over existing therapies and allow us to address a large portion of the human genome that was previously intractable with traditional modalities. We focus on biological pathways that have been clinically validated but where key biological nodes/proteins have not been drugged or are inadequately drugged. To date, we have utilized our Pegasus™ platform to design novel protein degraders focused in the areas of immunology-inflammation and oncology, and we continue to apply our platform’s capabilities to additional therapeutic areas. We have a mission to drug all target classes in human cells using TPD.

Previous report

Our current clinical stage programs are IRAK4, STAT3, and MDM2, which each address high impact targets within biologically-proven pathways, providing the opportunity to treat a broad range of immuno-inflammatory diseases, hematologic malignancies, and/or solid tumors. Our programs exemplify our focus on addressing high impact targets that have been elusive to conventional modalities and that drive the pathogenesis of multiple serious diseases with significant unmet medical needs. Our disclosed preclinical programs target STAT6 and TYK2, two proteins in well-validated pathways where we believe our degrader technology has the potential to offer unique advantages as compared to competing therapies. Both programs are currently in IND-enabling studies.

Previous report

With respect to our IRAK4 program, we are collaborating with Sanofi S.A, or Sanofi, on the development of drug candidates targeting IRAK4 outside the oncology and immuno-oncology fields. We are developing KT-474, a highly active and selective, orally bioavailable IRAK4 degrader, for the treatment of interleukin-1 receptor/toll-like receptor or IL-1R/TLR-driven immunology-inflammation conditions and diseases with high unmet medical need, including hidradenitis suppurativa, or HS, an inflammatory skin disease, as well as atopic dermatitis, or AD, and potentially other indications. We have completed our Phase 1 trial of KT-474, which included cohorts of healthy volunteers, as well as patients with HS and AD. Phase 2 clinical trials of KT-474, conducted by Sanofi, are initially investigating its potential in HS and AD. The clinical trials for both indications have been initiated, and patient dosing is ongoing.

Previous report

With respect to our clinical oncology programs, we are evaluating KT-333, a STAT3 degrader, in a Phase 1 clinical trial in patients with relapsed/refractory liquid and solid tumors, including aggressive lymphomas. Patient enrollment and dosing are ongoing in the Phase 1a portion of the trial, and we expect to present additional clinical data in 2024. In September 2023, we announced that the FDA, granted KT-333 Fast Track Designation for the treatment of relapsed/refractory peripheral T cell lymphoma, an indication for which we have previously received Orphan Drug Designation. Our Phase 1 clinical trial of KT-253, our MDM2 degrader, was initiated in March 2023. The study is evaluating the safety, tolerability, pharmacokinetics/pharmacodynamics, and clinical activity of ascending doses of KT-253 in adult patients with relapsed or refractory high grade myeloid malignancies, acute lymphocytic leukemia, or ALL, lymphomas, and solid tumors. Patient enrollment and dosing are ongoing in the Phase 1a portion of the trial, and we provided initial safety, proof-of-mechanism and proof-of-concept data in November of 2023. We expect to present additional clinical data in 2024. In June 2023, KT-253 was granted orphan drug designation by the FDA for the treatment of acute myeloid leukemia. In November 2023, we announced the decision to discontinue the development of our KT-413 (IRAKIMiD) program, despite reaching expected degradation levels and a lack of dose-limiting toxicities, in order to focus resources to support our growing immunology pipeline.

Previous report

expenses incurred under agreements with organizations that support our platform program development;

Previous report

Research and development expenses were $164.2 million for the year ended December 31, 2022, compared to $137.0 million for the year ended December 31, 2021. The increase of $27.2 million was primarily due to an increase of $22.4 million related to IND-enabling studies for our MDM2 program and increased investment in our other pipeline programs and platform, as well an additional $22.0 million increase in personnel, stock-based compensation and occupancy costs due to increases in employee headcount in the research and development functions. These increases were primarily offset by a $17.2 million reduction in direct expenses related to our activities for our IRAK4, IRAKIMiD and STAT3 programs due to changes in the stage of development of these programs and the discontinuation of IRAKIMiD.

Previous report

During the year ended December 31, 2021, net cash provided by financing activities was $250.3 million, primarily consisting of $240.8 million of net proceeds received in our July 2021 follow on offering, $2.3 million from our July 2021 concurrent private placement, $7.6 million in proceeds from the exercise of employee stock options, $0.8 million in proceeds from the issuance of shares under our employee stock purchase plan offset by the payment of $0.4 million in offering costs related to our August 2020 IPO and finance lease payments of $0.8 million.

Previous report

We believe the existing cash, cash equivalents and marketable securities of $436.3 million as of December 31, 2023, together with the net proceeds from the first quarter of 2024 offerings and the $15 million milestone payment received in
Reworded paragraphs (26)

Previous wording

Since our inception in 2015, we have devoted substantially all our efforts to organizing and staffing our company, research and development activities, business planning, raising capital, building our intellectual property portfolio and providing general and administrative support for these operations. To date, we have received gross proceeds of $1.45 billion from sales of our convertible preferred stock, the sale of common stock including our August 2020 initial public offering, or IPO, and concurrent private placement, our July 2021 follow-on offering and concurrent private placement, our August 2022 private investment in public equity, or PIPE, offering, January 2024 follow-on offering, our sales agreement with Cowen and Company, LLC., and through our corporate collaborations.

Current wording

Since our inception in 2015, we have devoted substantially all our efforts to organizing and staffing our company, research and development activities, business planning, raising capital, building our intellectual property portfolio and providing general and administrative support for these operations. To date, we have received gross proceeds of $1.71 billion from sales of our convertible preferred stock, the sale of common stock including our August 2020 initial public offering, or IPO, and concurrent private placement, our subsequent follow-on offerings and private placement offering, our prior sales agreement with Cowen and through our corporate collaborations.

Previous wording

We have incurred significant operating losses since inception. Our ability to generate product revenue sufficient to achieve profitability will depend heavily on the successful development and eventual commercialization of one or more of our current product candidates or any future product candidates. Our net losses were $147.0 million, $154.8 million and $100.2 million for the years ended December 31, 2023, 2022 and 2021, respectively. In addition, as of December 31, 2023 and 2022 we had an accumulated deficit of $530.8 million and $383.8 million, respectively. We expect that our expense and capital requirements will increase substantially in connection with our ongoing activities, particularly if and as we:

Current wording

We have incurred significant operating losses since inception. Our ability to generate product revenue sufficient to achieve profitability will depend heavily on the successful development and eventual commercialization of one or more of our current product candidates or any future product candidates. Our net losses were $223.9 million, $147.0 million and $154.8 million for the years ended December 31, 2024, 2023 and 2022, respectively. In addition, as of December 31, 2024 and 2023, we had an accumulated deficit of $754.6 million and $530.8 million, respectively. We expect that our expense and capital requirements will increase substantially in connection with our ongoing activities, particularly if and as we:

Previous wording

expand and improve the capabilities of our Pegasus™ platform;

Current wording

expand and improve the capabilities of our drug discovery platform;

Previous wording

As of December 31, 2023, we had cash, cash equivalents and marketable securities of $436.3 million. We believe the existing cash, cash equivalents and marketable securities on hand, together with the net proceeds from the first quarter of 2024 offerings and the $15 million milestone payment received in January of 2024 under our collaboration agreement with Sanofi, will be sufficient to fund our operations into the first half of 2027. which is expected to take us beyond the Phase 2 data for KT-474, as well as additional proof-of-concept data for KT-253 and KT-333, and several clinical inflection points for our STAT6 and TYK2 programs. We have based this estimate on assumptions that may prove to be wrong, and we could exhaust our available capital resources sooner than we expect. See “—Liquidity and capital resources.”

Current wording

As of December 31, 2024, we had cash, cash equivalents and marketable securities of $850.9 million. We believe the existing cash, cash equivalents and marketable securities on hand will be sufficient to fund our operations into mid 2027, which will enable us to execute on multiple data readouts across our programs. We have based this estimate on assumptions that may prove to be wrong, and we could exhaust our available capital resources sooner than we expect. See “Liquidity and capital resources” below.

Previous wording

In consideration for the exclusive licenses granted to Sanofi under the Sanofi Agreement, Sanofi made an upfront payment of $150.0 million. In addition to the upfront payment, we are eligible to receive certain development milestone payments of up to $1.48 billion in the aggregate, of which more than $1.0 billion relates to the IRAK4 program, upon the achievement of certain developmental or regulatory events. We will be eligible to receive certain commercial milestone payments up to $700.0 million in the aggregate, of which $400.0 million relates to the IRAK4 program, which are payable upon the achievement of certain net sales thresholds. We will be eligible to receive tiered royalties for each program on net sales ranging from the high single digits to high teens, subject to low-single digits upward adjustments in certain circumstances. As of December 31, 2023, we have achieved $55.0 million of milestones to date under the Sanofi Agreement related to certain IRAK4 clinical milestones.

Current wording

In consideration for the exclusive licenses granted to Sanofi under the Sanofi Agreement, Sanofi paid to us an upfront payment of $150.0 million. In addition to the upfront payment, under the agreement we were eligible to receive certain development milestone payments of up to $1.48 billion, and commercial milestone payments of up to $700.0 million, in the aggregate. Of these milestones, we remain eligible to receive up to $1.0 billion in development milestones upon the achievement of certain developmental or regulatory events, and up to $400.0 million in commercial milestones which are payable upon the achievement of certain net sales thresholds, all of which are related to the IRAK4 program. We will further be eligible to receive tiered royalties on net sales ranging from the high single digits to high teens, subject to low-single digits upward adjustments in certain circumstances. As of December 31, 2024, we have achieved $55.0 million of milestones under the Sanofi Agreement related to certain IRAK4 clinical milestones.

Previous wording

Our operating expenses since inception have consisted solely of research and development expenses and general and administrative expenses.

Current wording

Our operating expenses since inception have consisted primarily of research and development expenses and general and administrative expenses.

Previous wording

contract manufacturing organizations, or CMOs, that are primarily engaged to provide drug substance and product for our preclinical research and development programs, nonclinical studies and other scientific development services;

Current wording

contract manufacturing organizations, or CMOs, that are primarily engaged to provide drug substance and product for our preclinical research and development programs, nonclinical studies, clinical trials and other scientific development services;

Previous wording

the cost of acquiring and manufacturing nonclinical trial materials, including manufacturing registration and validation batches;

Current wording

the cost of acquiring and manufacturing clinical and nonclinical trial materials, including manufacturing registration and validation batches;

Previous wording

our ability to maintain our current development program and to establish new ones;

Current wording

our ability to maintain our current development programs and to establish new ones;

Previous wording

We anticipate that our general and administrative expenses will increase in the future as we increase our headcount to support development of our product candidates and our continued research activities. We also anticipate that we will incur increased accounting, audit, legal, regulatory, compliance and director and officer insurance costs as well as legal, investor and public relations expenses associated with our continued growth as a public company.

Current wording

We anticipate that our general and administrative expenses will increase in the future as we increase our headcount to support development of our product candidates and our continued research activities. We also anticipate that we will incur increased accounting, audit, legal, regulatory, compliance and director and officer insurance costs as well as legal, investor and public relations expenses associated with being a public company.

Previous wording

Interest and other income and expense consists of interest earned on our invested cash balances and interest on our financing leases.

Current wording

Interest and other income and expense consists of interest earned on our invested cash balances and interest expense related to our financing leases.

Previous wording

Collaboration revenues were $46.8 million for the year ended December 31, 2022, of which $10.8 million and $36.0 million were attributable to our collaboration agreements with Vertex and Sanofi, respectively. Collaboration revenues were $72.8 million for the year ended December 31, 2021, of which $18.5 million and $54.3 million were attributable to our collaboration agreements with Vertex and Sanofi, respectively.

Current wording

Collaboration revenues were $47.1 million for the year ended December 31, 2024, the entirety of which was attributable to our collaboration agreement with Sanofi. Collaboration revenues were $78.6 million for the year ended December 31, 2023, of which $8.4 million and $70.2 million were attributable to our collaboration agreements with Vertex and Sanofi, respectively. The decrease in revenue is primarily attributable to the achievement of $55 million in milestones under the Sanofi agreement in the fourth quarter of 2023 and the associated cumulative catch-up of revenue at that time.

Previous wording

The following table summarizes our research and development expenses for each period presented (program expenses are not disclosed prior to formal development candidate nomination):

Current wording

The following table summarizes our research and development expenses for each period presented (program expenses are not separately included in the table below prior to the year they are disclosed):

Previous wording

General and administrative expenses were $43.8 million for the year ended December 31, 2022, compared to $36.3 million for the year ended December 31, 2021. The $7.5 million increase was primarily due to a $6.5 million increase in G&A employee compensation due to an increase in employee headcount, and a $1.0M increase in legal and professional services expenses to support our growth as a public company.

Current wording

General and administrative expenses were $63.5 million for the year ended December 31, 2024, compared to $55.0 million for the year ended December 31, 2023. The $8.5 million increase was primarily due to a $7.0 million increase in personnel, stock-based compensation and occupancy costs due to increases in employee headcount in the general and administrative functions, and a $1.5 million increase in legal and professional services expenses to support our operations as a public company.

Previous wording

Other income, net was $6.4 million for the year ended December 31, 2022, compared to $0.3 million for the year ended December 31, 2021. The $6.1 million increase was primarily due to the prevailing interest rates in the respective periods.

Current wording

Other income, net was $37.8 million for the year ended December 31, 2024, compared to $18.6 million for the year ended December 31, 2023. The $19.2 million increase was primarily due to the increase in our investments balance as a result of 2024 financing activities as well as prevailing interest rates in the respective periods.

Previous wording

The following table summarizes our research and development expenses for each period presented (program expenses are not disclosed prior to formal development candidate nomination):

Current wording

The following table summarizes our research and development expenses for each period presented (program expenses are not separately included in the table below prior to the year they are disclosed):

Previous wording

Research and development expenses were $189.1 million for the year ended December 31, 2023, compared to $164.2 million for the year ended December 31, 2022. The increase of $24.8 million was primarily due to an increase of $19.5 million in personnel, stock-based compensation and occupancy costs due to increases in employee headcount in the research and development functions, a $10.2 million increase in other research and development expenses primarily associated with increased work on preclinical programs, as well as a $3.2 million increase in expenses on our STAT3 program due to the continued progression of the associated Phase-1 clinical trial. These increases were primarily offset by a $8.0 million reduction in direct expenses related to our activities for our IRAK4, IRAKIMiD and MDM2 programs due to changes in the stage of development of these respective programs.

Current wording

Research and development expenses were $189.1 million for the year ended December 31, 2023, compared to $164.2 million for the year ended December 31, 2022. The increase of $24.8 million was primarily due to an increase of $19.5 million in personnel, stock-based compensation and occupancy costs due to increases in employee headcount in the research and development functions, a $9.9 million increase in other research and development expenses primarily associated with increased work on preclinical programs, as well as a $3.2 million increase in expenses on our STAT3 program due to the expenses associated with the Phase-1 clinical trial. These increases were primarily offset by a $7.7 million reduction in direct expenses related to our activities for our IRAK4 and MDM2 programs due to changes in the stage of development of these respective programs.

Previous wording

General and administrative expenses were $55.0 million for the year ended December 31, 2023, compared to $43.8 million for the year ended December 31, 2022. The $11.2 million increase was primarily due to a $8.8 million increase in personnel, stock-based compensation and occupancy costs due to increases in employee headcount in the general and administrative functions, and a $2.4 million increase in legal and professional services expenses to support our growth as a public company.

Current wording

General and administrative expenses were $55.0 million for the year ended December 31, 2023, compared to $43.8 million for the year ended December 31, 2022. The $11.2 million increase was primarily due to a $8.8 million increase in personnel, stock-based compensation and occupancy costs due to increases in employee headcount in the general and administrative functions, and a $2.4 million increase in legal and professional services expenses to support our operations as a public company.

Previous wording

We have not yet generated any revenue from any product sales, and we have incurred significant operating losses since our inception. We have not yet commercialized any products and we do not expect to generate revenue from sales of products for several years, if at all. To date, we have received gross proceeds of $1.45 billion from sales of our convertible preferred stock, the sale of common stock including our August 2020 IPO and concurrent private placement, our July 2021 follow-on offering and concurrent private placement, our August 2022 PIPE offering, January 2024 follow-on offering, our sales agreement with Cowen and Company, LLC., and through our corporate collaborations. As of December 31, 2023 we had cash and cash equivalents and marketable securities of $436.3 million.

Current wording

We have not yet generated any revenue from any product sales, and we have incurred significant operating losses since our inception. We have not yet commercialized any products and we do not expect to generate revenue from sales of products for several years, if at all. To date, we have received gross proceeds of $1.71 billion from sales of our convertible preferred stock, the sale of common stock including our August 2020 initial public offering, or IPO, and concurrent private placement, our follow-on offerings and private placement offering, our prior sales agreement with Cowen, and through our corporate collaborations. As of December 31, 2024, we had cash and cash equivalents and marketable securities of $850.9 million.

Previous wording

In October 2021, we entered into a sales agreement, or Sales Agreement, with Cowen and Company, LLC, or Cowen, pursuant to which we may offer and sell shares of our common stock having aggregate gross proceeds of up to $250.0 million from time to time in “at-the-market” offerings through Cowen, as our sales agent. We agreed to pay Cowen a commission of up to 3.0% of the gross proceeds of any shares sold by Cowen under the Sales Agreement. There have been no shares of our common stock sold under the Sales Agreement as of December 31, 2023. On February 7, 2024, we completed the sale of 1,519,453 shares of common stock under the Sales agreement resulting in gross proceeds of approximately $50 million.

Current wording

In October 2021, we entered into a sales agreement, or Cowen Sales Agreement, with Cowen, pursuant to which we were able to offer and sell shares of our common stock having aggregate gross proceeds of up to $250.0 million from time to time in “at-the-market” offerings through Cowen, as our sales agent. We agreed to pay Cowen a commission of up to 3.0% of the gross proceeds of any shares sold by Cowen under the Sales Agreement. As of December 31, 2024, we have sold 1,519,453 shares of common stock under the Sales Agreement resulting in gross proceeds of approximately $50 million. On October 30, 2024, Cowen acknowledged and accepted our prior written notice to terminate the Cowen Sales Agreement, which termination was effective on October 30, 2024. As a result of such termination, we will not offer or sell any additional shares of common stock under the Cowen Sales Agreement.

Previous wording

During the year ended December 31, 2021, cash used in investing activities was $99.8 million comprised of purchases of marketable securities of $456.4 million and purchases of property and equipment of $1.6 million offset by maturities of marketable securities of $358.2 million.

Current wording

During the year ended December 31, 2024, cash used in investing activities was $404.1 million comprised of purchases of marketable securities of $901.2 million and purchases of property and equipment of $12.8 million partially offset by maturities of marketable securities of $509.9 million.

Previous wording

We expect our expenses to increase substantially in connection with our ongoing activities, particularly as we advance the later-stage clinical development of our product candidates. In addition, we expect to incur additional costs associated with our growth as a public company.

Current wording

We expect our expenses to increase substantially in connection with our ongoing activities, particularly as we advance the later-stage clinical development of our product candidates. In addition, we expect to incur additional costs associated with operating as a public company.

Previous wording

January of 2024 under our collaboration agreement with Sanofi, will be sufficient to fund our operations into the first half of 2027. We have based this estimate on assumptions that may prove to be wrong, and we could exhaust our available capital resources sooner than we expect. We expect that we will require additional funding to continue the clinical development of our clinical programs, commercialize our product candidates if we receive regulatory approval, and pursue in-licenses or acquisitions of other product candidates. If we receive regulatory approval for any of our product candidates, we expect to incur significant commercialization expenses related to product manufacturing, sales, marketing and distribution, depending on where we choose to commercialize our product candidates.

Current wording

We believe the existing cash, cash equivalents and marketable securities of $850.9 million as of December 31, 2024, will be sufficient to fund our operations into mid 2027. We have based this estimate on assumptions that may prove to be wrong, and we could use our capital resources sooner than we currently expect. We expect that we will require additional funding to continue the clinical development of our clinical programs, commercialize our product candidates if we receive regulatory approval, and pursue in-licenses or acquisitions of other product candidates. If we receive regulatory approval for any of our product candidates, we expect to incur significant commercialization expenses related to product manufacturing, sales, marketing and distribution, depending on where we choose to commercialize our product candidates.

Previous wording

Identifying potential product candidates and conducting preclinical studies and clinical trials is a time consuming, expensive and uncertain process that takes years to complete, and we may never generate the necessary data or results required to obtain marketing approval and achieve product sales. In addition, our product candidates, if approved, may not achieve commercial success. Our commercial revenues, if any, will be derived from sales of products that we do not expect to be commercially available for many years, if ever. Accordingly, we will need to obtain substantial additional funds to achieve our business objectives.

Current wording

Identifying potential product candidates and conducting preclinical studies and clinical trials is a time consuming, expensive and uncertain process that takes years to complete, and we may never generate the necessary data or results required to obtain marketing approval and achieve product sales. In addition, our product candidates, if approved, may not achieve commercial success. Our commercial revenues, if any, will be derived from sales of products that we do not expect to be commercially available for many years, if at all. Accordingly, we will need to obtain substantial additional funds to achieve our business objectives.

Previous wording

Our lease commitments reflect payments due for our two lease agreements for laboratory and office space in Watertown, Massachusetts that expire in March of 2030 and 2035, respectively. As of December 31, 2023, our contractual commitments for our leases were $134.5 million, which will be paid over the term of such leases. For additional information on our leases and timing of future payments, please read Note 7, Leases, to the consolidated financial statements included in this Annual Report on Form 10-K.

Current wording

Our lease commitments reflect payments due for our two lease agreements for laboratory and office space in Watertown, Massachusetts that expire in March of 2030 and 2035, respectively. As of December 31, 2024, our contractual commitments for our leases were $124.9 million, which will be paid over the term of such leases. For additional information on our leases and timing of future payments, please read Note 7, Leases, to the consolidated financial statements included in this Annual Report on Form 10-K.

Previous wording

We base the expense recorded related to external research and development on our estimates of the services received and efforts expended pursuant to quotes and contracts with multiple CMOs and CROs that supply, conduct and manage nonclinical studies on our behalf. The financial terms of these agreements are subject to negotiation, vary from contract to contract and may result in uneven payment flows. There may be instances in which payments made to our vendors will exceed the level of services provided and result in a prepayment of the expense. In accruing service fees, we estimate the time period over which services will be performed and the level of effort to be expended in each period. If the actual timing of the performance of services or the level of effort varies from the estimate, we adjust the accrual or the amount of prepaid expenses accordingly. Although we do not expect our estimates to be materially different from amounts actually incurred, our understanding of the status and timing of services performed relative to the actual status and timing of services performed may vary and may result in reporting amounts that are too high or too low in any particular period. To date, there have not been any material adjustments to our prior estimates of accrued research and development expenses.

Current wording

We base the expense recorded related to external research and development on our estimates of the services received and efforts expended pursuant to quotes and contracts with multiple CMOs and CROs that supply, conduct and manage studies on our behalf. The financial terms of these agreements are subject to negotiation, vary from contract to contract and may result in uneven payment flows. There may be instances in which payments made to our vendors will exceed the level of services provided and result in a prepayment of the expense. In accruing service fees, we estimate the time period over which services will be performed and the level of effort to be expended in each period. If the actual timing of the performance of services or the level of effort varies from the estimate, we adjust the accrual or the amount of prepaid expenses accordingly. Although we do not expect our estimates to be materially different from amounts actually incurred, our understanding of the status and timing of services performed relative to the actual status and timing of services performed may vary and may result in reporting amounts that are too high or too low in any particular period. To date, there have not been any material adjustments to our prior estimates of accrued research and development expenses.
Rearranged current paragraphs (2)

Current report — wording carried from elsewhere

On October 31, 2024, we entered into an Open Market Sale Agreement SM, or Jefferies Sales Agreement, with Jefferies LLC, or Jefferies, pursuant to which we may offer and sell shares of our common stock having aggregate gross proceeds of up to $300.0 million from time to time in “at-the-market” offerings through Jefferies, as our sales agent. We agreed to pay Jefferies a commission of up to 3.0% of the gross proceeds of any shares sold by Jefferies under the Jefferies Sales Agreement. As of December 31, 2024, we have not sold any shares of common stock under the Jefferies Sales Agreement.

Current report — wording carried from elsewhere

During the year ended December 31, 2024, operating activities used $194.5 million of cash, primarily resulting from our net loss of $223.9 million during the period and a $41.1 million decrease in deferred revenue under our collaboration agreements. These were partially offset by a $17.2 million net decrease in other operating assets and liabilities primarily driven by changes in accounts receivable, accounts payable, accrued expenses, operating lease liabilities as well as adjustments for non-cash items of $53.3 million (primarily consisting of stock-based compensation, lease impairment charge, depreciation & amortization and premiums & discounts on available-sale-securities).
Rearranged previous paragraphs (1)

Previous report — wording carried elsewhere

During the year ended December 31, 2021, operating activities used $128.9 million of cash, primarily resulting from our net loss of $100.2 million during the period and a $69.4 million decrease in deferred revenue under our Sanofi and Vertex collaboration agreements. These were offset by adjustments for non-cash items of $33.2 million (primarily consisting of stock-based compensation, depreciation and amortization and premiums and discounts on available sale-securities) and a $7.5 million net increase in operating assets and liabilities primarily driven by changes in accounts payable and accrued expenses partially offset by changes in prepaid expenses and other operating assets and liabilities.