Skip to main content

Cullinan Therapeutics Inc

For the period ended Mar 31, 2025. Filed May 8, 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 8, 2025

CGEM$11.31+4.7%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 2024-11-07.

0000950170-24-122795

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

Current report: 10-Q

Period ended 2025-03-31; filed 2025-05-08.

0000950170-25-066384

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 128 previous paragraphs and 102 current paragraphs.

69 unchanged; 28 reworded; 5 added; 31 removed; 0 previous and 0 current paragraphs rearranged.

Tables are not compared: 4 previous and 4 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 (5)

Current report

As we continue to pursue commercial opportunities in both U.S. and international markets, we remain attentive to evolving global economic conditions, including uncertainties related to international trade policies, tariffs, and supply chain dynamics. Although these factors have not had a material impact on our business to date, future changes in trade regulations or tariff structures could have an impact on our business and operations, including our expenses, supply chain, manufacturing processes, preclinical studies and clinical trials. We continue to monitor these developments closely.

Current report

For the three months ended March 31, 2025, no cash was provided by or used in financing activities.
Removed paragraphs (31)

Previous report

CLN-978 is a CD19xCD3 T cell engager ("TCE") that we are developing for autoimmune diseases. Academic investigators have published data demonstrating the potential for a CD19xCD3 TCE to achieve sustained improvements in disease manifestations, including durable remission from symptoms in some cases, in multiple autoimmune disease indications, including rheumatoid arthritis (“RA”). We believe that CLN-978 has several potential advantages relative to other CD19-directed therapies currently in development, including CAR T therapies as well as other TCEs. Specifically, we believe CLN-978 demonstrates:

Previous report

Deeper B cell depletion due to CLN-978’s very high affinity binding to CD19;

Previous report

A wider therapeutic index due to CLN-978’s 10 times higher potency for B cell depletion relative to cytokine induction;

Previous report

Potential for more efficient deep tissue penetration due to the relatively small size of the CLN-978 molecule;

Previous report

Potential for deeper tissue-level B cell depletion than attainable with monoclonal antibodies that work primarily through antibody-dependent cellular cytotoxicity ("ADCC");

Previous report

Unlike most current generation autologous CAR T therapies, no need for lymphodepleting chemotherapy which is associated with significant toxicities and recognized risk of secondary malignancies; and,

Previous report

Off-the-shelf convenience without extended manufacturing lead times or limitation to certified treatment centers.

Previous report

Clinical observations from three patients treated in a Phase 1 dose escalation trial in patients with relapsed/refractory B cell non-Hodgkin lymphoma showed that CLN-978 was clinically active at the initial starting dose of 30 micrograms administered subcutaneously once weekly. Two of the three patients experienced objective clinical benefit, including one patient who experienced a complete response. Grade 1 cytokine release syndrome (fever) occurred in two patients following the first dose of CLN-978 only, and no patients experienced immune effector cell-associated neurotoxicity syndrome. Other adverse events were mostly low-grade and/or mechanistically based (e.g., transient lymphopenia after the first dose only). Of the two patients with detectable B cells at baseline, both experienced rapid and deep B cell depletion after administration of CLN-978. These data support that CLN-978 can not only deplete peripheral blood B cells but also demonstrate clinical activity in a tissue resident disease at a dose with a favorable safety profile.

Previous report

In June 2024, we presented the first clinical data from the CPI therapy combination dose escalation module of the clinical trial, as well as updated data from the monotherapy dose escalation module, at the American Society of Clinical Oncology Annual Meeting. The preliminary clinical data from CLN-619 in combination with the CPI pembrolizumab demonstrated objective tumor responses across multiple tumor types. Three partial responses were observed, including two in patients with non-small cell lung cancer ("NSCLC") with oncogenic mutations, which are tumor types typically unresponsive to CPI treatment. The expanded preliminary clinical observations for CLN-619 as a monotherapy demonstrated objective tumor responses and extended stable disease across multiple tumor types. We observed one complete response, two partial responses and nine stable disease for at least 18 weeks resulting in a clinical benefit rate of 41.4%. In general, this initial clinical data indicates CLN-619 has an acceptable safety profile across all doses assessed as both monotherapy and in combination with pembrolizumab. No dose-limiting toxicities were observed. Similar to other monoclonal antibodies, infusion-related reactions were limited to the first dose and were all Grade 1 or Grade 2 in patients receiving mandated pre-medication.

Previous report

The Phase 1 clinical trial continues to enroll expansion cohorts in cervical cancer (monotherapy), endometrial cancers (monotherapy and combination), NSCLC (monotherapy and combination), and ovarian cancer (chemotherapy combination). Additional expansion cohorts may be initiated based on clinical activity observed in the current clinical trial. Initial data from the disease specific expansion cohorts for endometrial and cervical cancers are anticipated in the second quarter of 2025. In September 2024, we dosed the first patient in the Phase 1 clinical trial to evaluate CLN-619 in patients with relapsed/refractory multiple myeloma.

Previous report

Separately, we were also issued a composition of matter patent by the United States Patent and Trademark Office, which is expected to extend CLN-619's patent protection to 2041, excluding possible patent term extension.

Previous report

In September 2024, at the European Society for Medical Oncology Congress we announced updated clinical data from the pivotal Phase 2b portion of our REZILIENT1 clinical trial of zipalertinib in patients with NSCLC harboring EGFRex20 insertion mutations who received zipalertinib after prior treatment with amivantamab. As of a March 29, 2024 data cut-off, 45 patients had been enrolled. Patients had received a median of three prior systemic therapies including amivantamab. At the data cut-off, 30 patients were evaluable for response and showed a 40% objective response rate ("ORR"), which was similar to the ORR for patients receiving zipalertinib after prior chemotherapy in the previously reported Phase 1/2a part of the clinical trial. Zipalertinib demonstrated a manageable safety profile, similar to what has been previously reported. There were no grade 4 or grade 5 treatment-related adverse events.

Previous report

In September 2024, we successfully completed enrollment of the pivotal Phase 2b portion of our REZILIENT1 clinical trial, which was originally planned for the end of 2024. We plan to share results of the pivotal Phase 2b portion of the REILIENT1 clinical trial at mid-year 2025.

Previous report

Impairment of long-lived assets represents the impairment charge for the carrying value in excess of the fair value of the assets. Refer to Note 10 of our notes to the consolidated financial statements in this Quarterly Report on Form 10-Q for additional details relating to the impairment.

Previous report

The $10.9 million decrease in research and development expenses in the nine months ended September 30, 2024 compared to the same period in 2023 was primarily due to the one-time upfront in-licensing fee for CLN-418 in 2023 ($25.0 million) and lower CMC costs ($3.9 million), partially offset by increases in clinical costs ($8.7 million), personnel costs relating to additional headcount ($4.1 million), preclinical costs ($3.5 million), and equity-based compensation costs ($1.4 million).

Previous report

The $2.4 million increase in general and administrative expenses in the three months ended September 30, 2024 compared to the same period in 2023 was primarily due to increases in other professional fees ($1.3 million) and equity-based compensation costs ($1.0 million).

Previous report

Impairment of long-lived assets represents the impairment charge for the carrying value in excess of the fair value of the assets. Refer to Note 10 of our notes to the consolidated financial statements in this Quarterly Report on Form 10-Q for additional details relating to the impairment.

Previous report

In April 2024, we completed the 2024 Private Placement in which we issued approximately 14.4 million shares of our common stock and pre-funded warrants to purchase approximately 0.3 million additional shares of our common stock. We received net proceeds of $262.7 million from the 2024 Private Placement, after deducting offering costs of $17.3 million. Refer to Note 6 of our notes to the consolidated financial statements in this Quarterly Report on Form 10-Q for additional detail regarding the 2024 Private Placement.

Previous report

For the nine months ended September 30, 2023, net cash provided by financing activities was $40.5 million, which primarily consisted of $38.4 million of net proceeds from the issuance of common stock under our ATM, and $1.8 million from the issuance of a convertible note by our CLN-619 development subsidiary to a noncontrolling interest.

Previous report

We currently qualify as an "emerging growth company" ("EGC") under the Jumpstart Our Business Startups Act which allows us to delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. We have elected to use the extended transition period for new or revised accounting standards during the period in which we remain an EGC; however, we may adopt certain new or revised accounting standards early.

Previous report

Because (i) the market value of our common stock held by non-affiliates exceeded $700 million as of June 30, 2024, (ii) we have been a public company for more than one year, and (iii) we have filed at least one annual report, we will cease to be an EGC as of December 31, 2024. As a result, beginning with our Annual Report on Form 10-K for the year ended December 31, 2024, we will not be able to rely on the extended transition period noted above and will be required to adopt all new accounting pronouncements within the same time periods as other public companies that are not EGCs. We will also be subject to certain other requirements that apply to other public companies but did not previously apply to us due to our status as an EGC, including the provisions of Section 404 of the Sarbanes-Oxley Act, which require that our independent registered public accounting firm provides an attestation report on the effectiveness of our internal control over financial reporting.
Reworded paragraphs (28)

Previous wording

Based on the emerging clinical data supporting the efficacy of CD19-directed therapy in multiple autoimmune diseases and our belief that CLN-978 has several potential advantages compared to other CD19-directed therapies in development, we are exploring the development of CLN-978 in a variety of autoimmune diseases and are committed to assessing its broad potential. In September 2024, we received Human Research Ethics Committee approval in Australia to initiate a global Phase 1 clinical trial to evaluate CLN-978 in patients with systemic lupus erythematosus ("SLE"). In October 2024, we received clearance from the FDA for an investigational new drug ("IND") application to evaluate CLN-978 in a Phase 1 clinical trial in patients with moderate to severe SLE. We plan to share initial clinical data for CLN-978 in the fourth quarter of 2025. In the second quarter of 2025, we also plan to initiate a sponsored clinical trial to evaluate CLN-978 in patients with RA designed and executed in collaboration with the Friedrich-Alexander University of Erlangen-Nuremberg and Università Cattolica del Sacro Cuore, Rome.

Current wording

CLN-978 is a CD19xCD3 T cell engager that we are developing for autoimmune diseases. CLN-978 is being investigated in systemic lupus erythematosus (“SLE”), rheumatoid arthritis (“RA”) and Sjögren’s disease (“SjD”). Our global Phase 1 clinical trial in patients with moderate to severe SLE is ongoing, and we plan to share initial clinical data in the fourth quarter of 2025. In April 2025, we received approval from the European Medicines Agency to initiate a Phase 1 clinical trial in patients with active, difficult-to-treat RA. We expect to initiate the trial at Friedrich-Alexander University of Erlangen-Nuremberg in Germany and Università Cattolica del Sacro Cuore in Italy in the second quarter of 2025. In April 2025, we also announced our plans to develop CLN-978 in patients with SjD. We plan to initiate a Phase 1 clinical trial in the U.S. in patients with active, moderate to severe SjD in the second quarter of 2025.

Previous wording

CLN-619, our lead unpartnered oncology program, is a monoclonal antibody that stabilizes expression of MICA/B on the tumor cell surface to promote tumor cell lysis mediated by both cytotoxic innate and adaptive immune cells. CLN-619 is being investigated as both monotherapy and in combination with checkpoint inhibitor (“CPI”) therapy or chemotherapy in an ongoing Phase 1 clinical trial in patients with advanced solid tumors.

Current wording

CLN-619 is a monoclonal antibody that stabilizes expression of MICA/B on the tumor cell surface to promote tumor cell lysis mediated by both cytotoxic innate and adaptive immune cells. Following a review of the data from the disease-specific expansion cohorts for endometrial and cervical cancers, we have discontinued further development of CLN-619 in patients with gynecological cancers as preliminary results did not meet our internal threshold for advancement. Our Phase 1 clinical trial of CLN-619 continues with the disease-specific expansion cohorts in patients with non-small cell lung cancer (“NSCLC”). We also continue to evaluate CLN-619 in a Phase 1 clinical trial in patients with relapsed/refractory multiple myeloma.

Previous wording

Zipalertinib (CLN-081/TAS6417), which we are co-developing with an affiliate of Taiho Pharmaceutical Co., Ltd ("Taiho"), is an orally-available small-molecule, irreversible epidermal growth factor receptor ("EGFR") inhibitor that is designed to selectively target cells expressing EGFR exon 20 ("EGFRex20") insertion mutations with relative sparing of cells expressing wild-type EGFR. We are eligible to receive up to $130.0 million from Taiho tied to EGFRex20 non-small-cell lung cancer regulatory milestones. We will also receive 50% of any future pre-tax profits from potential U.S. sales of zipalertinib. The FDA has granted Breakthrough Therapy designation to zipalertinib. We are evaluating zipalertinib in the pivotal Phase 2b portion of the REZILIENT1 clinical trial in patients with EGFRex20 NSCLC who progressed after prior systemic therapy. Taiho is evaluating zipalertinib in a global Phase 3 clinical trial (“REZILIENT3”) in combination with chemotherapy as a potential first-line treatment for EGFRex20 NSCLC adult patients.

Current wording

Zipalertinib (CLN-081/TAS6417), which we are co-developing with an affiliate of Taiho Pharmaceutical Co., Ltd ("Taiho"), is an orally-available small-molecule, irreversible epidermal growth factor receptor ("EGFR") inhibitor that is designed to selectively target cells expressing EGFR exon 20 insertion mutations (“EGFR ex20ins”) with relative sparing of cells expressing wild-type EGFR. We are evaluating zipalertinib in a pivotal Phase 2b portion of the REZILIENT1 clinical trial in patients with EGFR ex20ins NSCLC who progressed after prior systemic therapy. In January 2025, we announced the Phase 2b portion of the REZILIENT1 trial met the primary endpoint of overall response rate in patients with EGFR ex20ins NSCLC who have received prior therapy. The results will be presented during an oral abstract session at the 2025 ASCO Annual Meeting on June 1, 2025. Pending discussions with the U.S. Food and Drug Administration, Taiho plans to submit a new drug application for zipalertinib in relapsed/refractory EGFR ex20ins NSCLC in the second half of 2025. Taiho is evaluating zipalertinib in a global Phase 3 clinical trial (“REZILIENT3”) in combination with chemotherapy as a potential first-line treatment for EGFR ex20ins NSCLC adult patients.

Previous wording

CLN-049 is a FLT3xCD3 T cell engaging bispecific antibody. CLN-049 is being investigated in an ongoing Phase 1 clinical trial in patients with relapsed/refractory acute myeloid leukemia ("AML") or myelodysplastic syndrome ("MDS"). We have also initiated a second Phase 1 clinical trial designed to evaluate the safety of CLN-049 in minimal residual disease (“MRD”)-positive AML. Following a review of data from the Phase 1 clinical trial of CLN-049, we reported that in the ongoing Phase 1 clinical trial of CLN-049 in patients with relapsed/refractory AML and MDS, dose-limiting injection site reactions were observed during dose escalation with subcutaneous administration. Based on these findings, together with observations of preliminary clinical activity, we discontinued subcutaneous administration. Dose escalation continues in the Phase 1 clinical trial of CLN-049 with intravenous administration.

Current wording

CLN-049 is a FLT3xCD3 T cell engaging bispecific antibody. CLN-049 is being investigated in an ongoing Phase 1 clinical trial in patients with relapsed/refractory acute myeloid leukemia ("AML") or myelodysplastic syndrome. CLN-049 is also being evaluated in a Phase 1 clinical trial in patients with measurable minimal residual disease positive AML.

Previous wording

CLN-617 is a fusion protein combining two potent antitumor cytokines, interleukin-2 ("IL-2") and interleukin-12 ("IL-12") with tumor retention domains for the treatment of solid tumors. Patient enrollment continues in the ongoing CLN-617 first-in human Phase 1 clinical trial in patients with advanced solid tumors.

Current wording

CLN-617 is a fusion protein combining two potent antitumor cytokines, interleukin-2 and interleukin-12, with tumor retention domains for the treatment of solid tumors. CLN-617 is being investigated in a Phase 1 clinical trial in patients with advanced solid tumors.

Previous wording

In addition to the product candidates described above, we are developing several preclinical programs, all in the discovery stage, including our collaboration with Icahn School of Medicine at Mount Sinai for the development of novel hematopoietic progenitor kinase 1 degraders.

Current wording

In addition to the product candidates described above, we are actively developing several preclinical programs by leveraging our own internal expertise and through partnerships with external collaborators.

Previous wording

In August 2024, following a review of the data from the Phase 1 clinical trial of CLN-418, we notified Harbour BioMed US Inc. (“Harbour”) of our decision to terminate the license and collaboration agreement for CLN-418 (the “Harbour License Agreement”), effective November 2024. In connection with the termination of the Harbour License Agreement, we will discontinue development of CLN-418 and return development and commercial rights for CLN-418 to Harbour and focus our resources on our other product candidates. Refer to Note 5 of our notes to the consolidated financial statements in this Quarterly Report on Form 10-Q for additional detail regarding the Harbour License Agreement.

Current wording

Previously, we were evaluating CLN-418, a fully human bispecific immune activator targeting B7H4 and 4-1BB that we licensed from Harbour BioMed US Inc (“Harbour”) in a Phase 1 clinical trial. In August 2024, following a review of the data from the Phase 1 clinical trial, we notified Harbour of our decision to terminate the license and collaboration agreement for CLN-418 (the “Harbour License Agreement”), effective November 2024. In connection with the termination of the Harbour License Agreement, we discontinued development of CLN-418 and returned development and commercial rights for CLN-418 to Harbour to focus our resources on our other product candidates.

Previous wording

We have a controlling interest in the worldwide intellectual property rights for CLN-619, CLN-049, and CLN-617. We hold the worldwide intellectual property rights for CLN-978, and we hold the worldwide intellectual property rights or exclusive options for worldwide intellectual property for our earlier-stage programs. We are co-developing zipalertinib, for which Taiho holds the intellectual property rights, with an affiliate of Taiho. The following table shows our ownership interest as of September 30, 2024 in product candidates in which we have a controlling interest in the worldwide intellectual property rights:

Current wording

We hold the worldwide intellectual property rights for CLN-978, and we hold the worldwide intellectual property rights or exclusive options for worldwide intellectual property for our earlier-stage programs. We have a controlling interest in the worldwide intellectual property rights for CLN-619, CLN-049, and CLN-617. We are co-developing zipalertinib, for which Taiho holds the intellectual property rights, with an affiliate of Taiho. The following table shows our ownership interest as of December 31, 2024 in product candidates in which we have a controlling interest in the worldwide intellectual property rights:

Previous wording

We have funded our operations primarily through the sale of equity securities and from licensing or selling the rights to our product candidates. As of September 30, 2024, we have received net proceeds of $842.2 million from equity financings. We have received $18.9 million in revenue from a previous license agreement and cash proceeds of $275.0 million from the sale of our equity interest in our zipalertinib development subsidiary to Taiho. In April 2024, we sold shares of our common stock and pre-funded warrants for shares of our common stock in a private placement (the “2024 Private Placement”) for net proceeds of $262.7 million, after deducting offering expenses of $17.3 million. Refer to Note 6 of our notes to the consolidated financial statements in this Quarterly Report on Form 10-Q for additional detail regarding the 2024 Private Placement.

Current wording

We have funded our operations primarily through the sale of equity securities and from licensing or selling the rights to our product candidates. As of March 31, 2025, we have received net proceeds of $842.2 million from equity financings. We have received $18.9 million in revenue from a previous license agreement and cash proceeds of $275.0 million from the sale of our equity interest in our zipalertinib development subsidiary to Taiho.

Previous wording

As of September 30, 2024, we had cash, cash equivalents, and short-term investments of $578.1 million, and long-term investments and interest receivable of $60.9 million. Interest receivable is included in prepaid expenses and other current assets on the consolidated balance sheets and represents accrued and unpaid interest on our marketable securities. We have a history of significant operating losses and have had negative cash flows from operations since our inception. As of September 30, 2024, we had an accumulated deficit of $320.6 million. We expect to continue to generate operating losses for the foreseeable future. Our future viability is dependent on the success of our research and development and our ability to access additional capital to fund our operations. There can be no assurance that our current operating plan will be achieved or that additional funding will be available on terms acceptable to us, or at all.

Current wording

As of March 31, 2025, we had cash, cash equivalents, and short-term investments of $303.8 million, and long-term investments and interest receivable of $263.6 million. Interest receivable is included in prepaid expenses and other current assets on the consolidated balance sheets and represents accrued and unpaid interest on our marketable securities. We have a history of significant operating losses and have had negative cash flows from operations since our inception. As of March 31, 2025, we had an accumulated deficit of $416.7 million. We expect to continue to generate operating losses for the foreseeable future. Our future viability is dependent on the success of our research and development and our ability to access additional capital to fund our operations. There can be no assurance that our current operating plan will be achieved or that additional funding will be available on terms acceptable to us, or at all.

Previous wording

Comparison of the Three and Nine Months Ended September 30, 2024 and 2023

Current wording

Comparison of the Three Months Ended March 31, 2025 and 2024

Previous wording

The following table presents our results of operations for the three and nine months ended September 30, 2024 and 2023 (in thousands):

Current wording

The following table presents our results of operations for the three months ended March 31, 2025 and 2024 (in thousands):

Previous wording

The following table summarizes our research and development expenses for the three and nine months ended September 30, 2024 and 2023 (in thousands):

Current wording

In the fourth quarter of 2024, we began disclosing research and development personnel costs without the effect of intercompany allocations to product candidates held by our development subsidiaries and also began disclosing license agreement obligations separately from the related product candidate. We have recast prior period financial information to conform to the new presentation. The following table summarizes our research and development expenses for the three months ended March 31, 2025 and 2024 (in thousands):

Previous wording

The $1.7 million increase in research and development expenses in the three months ended September 30, 2024 compared to the same period in 2023 was primarily due to increases in personnel costs relating to additional headcount ($1.8 million), other research and development costs ($1.4 million), clinical costs ($1.3 million), preclinical costs ($1.3 million), and equity-based compensation costs ($0.7 million), partially offset by a decrease in chemistry, manufacturing and controls ("CMC") costs ($4.3 million).

Current wording

The $10.8 million increase in research and development expenses in the three months ended March 31, 2025 compared to the same period in 2024 was primarily due to increases in clinical costs ($6.0 million), personnel costs relating to additional headcount ($3.4 million), equity-based compensation costs ($0.8 million), and chemistry, manufacturing and controls costs ($0.5 million).

Previous wording

The $7.6 million increase in general and administrative expenses in the nine months ended September 30, 2024 compared to the same period in 2023 was primarily due to increases in both equity-based compensation costs ($3.9 million) and personnel costs ($3.1 million) relating to additional headcount, and increases in other professional fees ($2.0 million), partially offset by decreases in occupancy costs ($0.9 million) and legal fees ($0.5 million).

Current wording

The $1.2 million increase in general and administrative expenses in the three months ended March 31, 2025 compared to the same period in 2024 was primarily due to increases in legal costs ($0.6 million), other professional fees ($0.5 million), and equity-based compensation costs ($0.4 million), partially offset by decreases in personnel costs ($0.5 million).

Previous wording

The $2.2 million and $5.9 million increases in other income for the three and nine months ended September 30, 2024, respectively, compared to the same periods in 2023 were primarily related to higher investment income.

Current wording

The $0.8 million increase in other income for the three months ended March 31, 2025, compared to the same period in 2024 was primarily related to higher investment income.

Previous wording

We have a history of significant operating losses and have had negative cash flows from operations since our inception and expect to continue to generate operating losses for the foreseeable future. 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 funded our operations primarily with proceeds from the sale of equity securities and from licensing or selling the rights to our product candidates. As of September 30, 2024, we had cash, cash equivalents, and short-term investments of $578.1 million, and long-term investments and interest receivable of $60.9 million.

Current wording

We have a history of significant operating losses and have had negative cash flows from operations since our inception and expect to continue to generate operating losses for the foreseeable future. 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 funded our operations primarily with proceeds from the sale of equity securities and from licensing or selling the rights to our product candidates. As of March 31, 2025, we had cash, cash equivalents, and short-term investments of $303.8 million, and long-term investments and interest receivable of $263.6 million.

Previous wording

In May 2023, we entered into an agreement with Cowen and Company, LLC (“Cowen”) to establish an at-the-market equity offering program (the "ATM"), pursuant to which we may offer and sell up to $125.0 million of our common stock from time to time through Cowen, acting as our sales agent. We made no sales under the ATM in the nine months ended September 30, 2024. Through September 30, 2024, we have sold approximately 3.3 million shares under the ATM and received net proceeds of $38.4 million, after deducting commissions. As of September 30, 2024, we had $85.6 million in shares of our common stock remaining under the ATM.

Current wording

We have an at-the-market equity offering program (the "ATM") through an agreement with Cowen and Company, LLC (“Cowen”), pursuant to which we may offer and sell up to $125.0 million of our common stock from time to time through Cowen, acting as our sales agent. We made no sales under the ATM in the three months ended March 31, 2025. Through March 31, 2025, we have sold approximately 3.3 million shares under the ATM and received net proceeds of $38.4 million, after deducting commissions. As of March 31, 2025, we had $85.6 million in shares of our common stock remaining under the ATM.

Previous wording

Comparison of Cash Flows for the Nine Months Ended September 30, 2024 and 2023

Current wording

Comparison of Cash Flows for the Three Months Ended March 31, 2025 and 2024

Previous wording

The following table summarizes our sources and uses of cash for the nine months ended September 30, 2024 and 2023 (in thousands):

Current wording

The following table summarizes our sources and uses of cash for the three months ended March 31, 2025 and 2024 (in thousands):

Previous wording

For the nine months ended September 30, 2023, our operating activities used $116.1 million of cash, which primarily consisted of our operating expenses, excluding non-cash items, of $122.0 million and income taxes paid of $4.7 million, partially offset by interest income, excluding accretion on marketable securities, of $9.2 million and a $1.1 million benefit from the net change in our non-tax operating assets and liabilities. The non-cash operating expenses primarily consisted of equity-based compensation expense.

Current wording

For the three months ended March 31, 2025, our operating activities used $43.2 million of cash, which primarily consisted of our operating expenses, excluding non-cash items, of $45.5 million and a $1.8 million net change in our non-tax operating assets and liabilities, partially offset by interest income, excluding accretion on marketable securities, of $4.3 million. The non-cash operating expenses primarily consisted of equity-based compensation expense.

Previous wording

For the nine months ended September 30, 2024, our operating activities used $108.7 million of cash, which primarily consisted of our operating expenses, excluding non-cash items, of $113.5 million and a $7.5 million net change in our non-tax operating assets and liabilities, partially offset by interest income, excluding accretion on marketable securities, of $10.2 million, and a net income tax refund of $2.3 million. The non-cash operating expenses primarily consisted of equity-based compensation expense.

Current wording

For the three months ended March 31, 2024, our operating activities used $38.2 million of cash, which primarily consisted of our operating expenses, excluding non-cash items, of $34.7 million and a $9.8 million net change in our non-tax operating assets and liabilities, partially offset by an income tax refund of $3.9 million and interest income, excluding accretion on marketable securities, of $2.4 million. The non-cash operating expenses primarily consisted of equity-based compensation expense.

Previous wording

For the nine months ended September 30, 2024, net cash used in investing activities was $152.3 million, which consisted of $553.1 million of purchases of marketable securities, partially offset by $400.8 million of proceeds from the maturities of marketable securities.

Current wording

For the three months ended March 31, 2025, our investing activities provided $36.8 million, which consisted of $162.6 million of proceeds from the maturities of marketable securities, partially offset by $125.8 million of purchases of marketable securities.

Previous wording

For the nine months ended September 30, 2023, net cash used in investing activities was $15.7 million, which primarily consisted of $307.4 million of purchases of marketable securities, partially offset by $291.9 million of proceeds from the maturities of marketable securities.

Current wording

For the three months ended March 31, 2024, our investing activities provided $13.0 million, which primarily consisted of $144.3 million of proceeds from the maturities of marketable securities, partially offset by $131.4 million of purchases of marketable securities.

Previous wording

For the nine months ended September 30, 2024, net cash provided by financing activities was $264.6 million, which consisted of $262.7 million of net proceeds from the issuance of common stock under our 2024 Private Placement and $6.4 million in net proceeds from the issuance of common stock under equity-based compensation plans, partially offset by $4.4 million paid to acquire shares and options to purchase shares of our CLN-619 development subsidiary that were held by noncontrolling interests.

Current wording

For the three months ended March 31, 2024, net cash provided by financing activities was $1.1 million in net proceeds from the issuance of common stock under equity-based compensation plans.

Previous wording

We have certain payment obligations under various license and collaboration agreements. Under these agreements, we are required to make milestone payments upon successful completion and achievement of certain intellectual property, clinical, regulatory, and sales milestones. The payment obligations under the license and collaboration agreements are contingent upon future events, such as our achievement of specified development, clinical, regulatory, and commercial milestones, and we will be required to make milestone and royalty payments in connection with the sale of products developed under these agreements. As the achievement and timing of these future milestone payments are not probable or estimable, such amounts have not been included in our consolidated balance sheets as of September 30, 2024 and December 31, 2023.

Current wording

We have certain payment obligations that are contingent upon future events under various license and collaboration agreements. Under these agreements, we will be required to make milestone payments upon successful completion and achievement of certain intellectual property, clinical, regulatory, and sales milestones, and we will be required to make royalty payments in connection with the sale of products developed under these agreements. As the achievement and timing of these future payment obligations are not probable or estimable, such amounts have not been included in our consolidated balance sheets as of March 31, 2025 and December 31, 2024.

Previous wording

As of September 30, 2024, total future minimum lease payments were $2.7 million with $1.5 million payable within twelve months. See Note 10 to our consolidated financial statements included in this Quarterly Report on Form 10-Q for further detail on our lease obligations and the timing of expected future payments.

Current wording

As of March 31, 2025, total future minimum lease payments were $2.0 million with $1.5 million payable within twelve months. See Note 10 to our consolidated financial statements included in this Quarterly Report on Form 10-Q for further detail on our lease obligations and the timing of expected future payments.

Previous wording

A description of recently issued accounting pronouncements that may potentially impact our financial position and results of operations is disclosed in Note 2 of our consolidated financial statements included in this Quarterly Report on Form 10-Q.

Current wording

A description of recently issued and adopted accounting pronouncements that may potentially impact our financial position and results of operations is disclosed in Note 2 of our consolidated financial statements included in this Quarterly Report on Form 10-Q.