Skip to main content

Cullinan 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

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-K

Period ended 2023-12-31; filed 2024-03-14.

0000950170-24-031143

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.

0000950170-25-028346

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 113 previous paragraphs and 111 current paragraphs.

70 unchanged; 30 reworded; 10 added; 11 removed; 2 previous and 1 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 (10)

Current report

CLN-978 is a CD19xCD3 T cell engager ("TCE") that we are developing for autoimmune diseases. CLN-978 is being investigated in a global Phase 1 clinical trial in patients with moderate to severe systemic lupus erythematosus (“SLE”). We plan to share initial clinical data for CLN-978 in SLE in the fourth quarter of 2025. In the second quarter of 2025, we plan to initiate a company-sponsored Phase 1 clinical trial to evaluate CLN-978 in patients with rheumatoid arthritis (“RA”), designed and executed in collaboration with the Friedrich-Alexander University of Erlangen-Nuremberg and Università Cattolica del Sacro Cuore, Rome.

Current report

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.

Current 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 7 of our notes to the consolidated financial statements in this Annual Report on Form 10-K for additional detail regarding the 2024 Private Placement.

Current report

During 2024, our investing activities used $136.3 million, which consisted of $721.1 million of purchases of marketable securities, partially offset by $584.8 million of proceeds from the maturities of marketable securities.
Removed paragraphs (11)

Previous report

CLN-978 is a CD19xCD3 T cell engager with extended serum half-life and, based on preclinical data, robust potency against target cells expressing low levels of CD19. In August 2023, we dosed the first patient in our Phase 1 clinical trial of CLN-978 in patients with relapsed/refractory B cell non-Hodgkin lymphoma (“B-NHL”). Recently, academic and industry groups have generated clinical data and case series demonstrating that CD19 targeted CAR T cell therapy could lead to sustained improvements in disease, including durable remission in some cases, in several B cell mediated autoimmune indications. Nonetheless, cell therapy has many limitations, including the need for lymphodepleting chemotherapy, which is associated with significant toxicities, an FDA-recognized risk of secondary malignancies, and extended manufacturing timelines due to complexity of production. Based on the emerging clinical data supporting the efficacy of CD19 directed therapy in multiple autoimmune diseases and our belief that CLN-978 may address these limitations of CAR T cell therapy, we are also exploring the development of CLN-978 in autoimmune diseases.

Previous report

CLN-418 is a B7H4x4-1BB fully human bispecific immune activator designed to achieve conditional activation of 4-1BB by targeting B7H4, a tumor-associated antigen that is highly expressed across multiple cancers with minimal expression on normal tissues. CLN-418 is being investigated in an ongoing Phase 1 clinical trial in patients with advanced solid tumors with initial clinical data expected in the second half of 2024.

Previous report

Gain on sale of Cullinan Pearl represents the excess of the consideration received over the carrying value of the non-financial assets sold. Refer to Note 3 of our notes to the consolidated financial statements included in this Annual Report on Form 10-K for additional details relating to the transaction.

Previous report

Gain on sale of Cullinan Pearl represents the excess of the consideration received over the carrying value of the non-financial assets sold. Refer to Note 3 of our notes to the consolidated financial statements included in this Annual Report on Form 10-K for additional details relating to the transaction.

Previous report

In February 2023, we entered into a license and collaboration agreement (the “Harbour License Agreement”) with Harbour BioMed US Inc. ("Harbour"), pursuant to which Harbour granted us an exclusive license for the development, manufacturing and commercialization of CLN-418 in the U.S. Under the terms of the Harbour License Agreement, we paid Harbour an upfront license fee of $25.0 million at signing.

Previous report

During 2022, our investing activities provided $249.0 million of cash, which primarily consisted of proceeds of $352.9 million from the maturities of marketable securities and proceeds of $275.0 million from the sale of our equity interest in Cullinan Pearl, partially offset by $377.9 million used for the purchase of marketable securities and $1.1 million for the purchase of property and equipment to improve and furnish our leased office space.

Previous report

continue our research and development efforts and submit INDs for our current and future product candidates and programs;

Previous report

In April 2012, the JOBS Act was enacted. Section 107 of the JOBS Act provides that an “emerging growth company,” (“EGC”) can take advantage of the extended transition period provided in Section 7(a)(2)(B) of the Securities Act for complying with new or revised accounting standards. Thus, an EGC can 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 emerging growth company; however, we may adopt certain new or revised accounting standards early.

Previous report

We will remain an emerging growth company until the earliest to occur of (1) the last day of the fiscal year (a) following the fifth anniversary of the closing of our initial public offering, (b) in which we have total annual gross revenue of at least $1.235 billion or (c) in which we are deemed to be a large accelerated filer, which requires the market value of our common stock that is held by non-affiliates to exceed $700 million as of the prior June 30th, and (2) the date on which we have issued more than $1 billion in non-convertible debt during the prior three-year period.
Reworded paragraphs (30)

Previous wording

We are a clinical-stage biopharmaceutical company focused on developing modality-agnostic targeted oncology therapies. Our mission is creating new standards of care for patients. Our strategy is to identify high-impact cancer targets, which we define as those that play key roles as either oncogenic drivers or immune system activators, and then select what we believe is the optimal therapeutic modality for those targets. We source innovation both internally and externally, focusing on product candidates with novel technology or differentiated mechanisms. Before we advance a product candidate into clinical development, we evaluate its potential for anti-tumor activity as a single agent as well as its ability to generate an immune response or to inhibit oncogenic processes. Using this strategy, we have built a broad and deep pipeline of targeted oncology programs that includes six distinct clinical-stage product candidates.

Current wording

We are a clinical-stage biopharmaceutical company dedicated to creating new standards of care for patients. Our strategy is to identify high-impact targets, which we define as those that inhibit key drivers of disease or harness the immune system to eliminate diseased cells in both autoimmune diseases and cancer, and then select what we believe is the optimal therapeutic modality for those targets. We source innovation both internally and externally, focusing on product candidates with novel technology or differentiated mechanisms. Before we advance a product candidate into clinical development, we evaluate its potential for activity as a single agent as well as its ability to generate an immune response or to inhibit disease processes. Using this strategy, we have built a broad and deep pipeline of targeted immunology and oncology programs that includes multiple distinct clinical-stage product candidates.

Previous wording

Our lead unpartnered program, 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. CLN-619 is being investigated as both monotherapy and in combination with checkpoint inhibitor therapy in an ongoing Phase 1 clinical trial in patients with advanced solid tumors. We intend to present initial data from the checkpoint inhibitor therapy combination dose escalation module of the clinical trial, as well as updated data from the monotherapy dose escalation module, in the second quarter of 2024. Initial data from the disease specific expansion cohorts are anticipated in the first half of 2025. Separately, in February 2024, the United States ("“U.S."”) Food and Drug Administration ("“FDA"”) cleared our Investigational New Drug ("“IND"”) application to evaluate CLN-619 in a Phase 1 clinical trial in relapsed/refractory multiple myeloma patients.

Current 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. Initial data from the disease specific expansion cohorts for endometrial and cervical cancers are anticipated in the second quarter of 2025. CLN-619 is also being evaluated 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. The FDA has granted Breakthrough Therapy designation to zipalertinib. In collaboration with our partners at Taiho, we are evaluating zipalertinib in the pivotal Phase 2b portion of the REZILIENT1 clinical trial in patients with EGFRex20 non-small-cell lung cancer ("NSCLC") who progressed after prior systemic therapy, and in a global Phase 3 clinical trial (“REZILIENT3”) in combination with chemotherapy as a potential first-line treatment for EGFRex20 NSCLC adult patients. We expect to complete enrollment in the pivotal Phase 2b portion of the REZILIENT1 clinical trial by year-end 2024. Taiho and we will each receive 50% of any future pre-tax profits from potential U.S. sales of zipalertinib.

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 ("EGFRex20") insertion mutations 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 EGFRex20 non-small cell lung cancer (“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 ("ORR") in patients with EGFRex20 NSCLC who have received prior therapy, and we plan to share full results at mid-year 2025. Pending discussions with the U.S. Food and Drug Administration (the "FDA"), we plan to submit for U.S. regulatory approval 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 EGFRex20 NSCLC adult patients.

Previous wording

CLN-049 is a FLT3xCD3 T cell engaging bispecific antibody being investigated in patients with relapsed/refractory acute myeloid leukemia ("AML") or myelodysplastic syndrome ("MDS"). CLN-049 is currently in an ongoing Phase 1 clinical trial with updated clinical data expected in the second half of 2024. In December 2023, we initiated a second Phase 1 clinical trial designed to evaluate the safety of CLN-049 in minimal residual disease-positive AML.

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 ("MDS"). CLN-049 is also being evaluated in a Phase 1 clinical trial in measurable 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. In December 2023, we dosed the first patient in the CLN-617 first-in-human Phase 1 clinical trial.

Current 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. 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 actively developing several preclinical oncology 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

When we were a private company, we established development subsidiaries when we acquired or licensed exclusive worldwide rights to intellectual property, including for CLN-619, CLN-049, and CLN-617. The structure of our financing arrangements with each development subsidiary enables us to increase our economic ownership when we provide additional capital. We have not established development subsidiaries for our other current product candidates and programs. In June 2022, we sold our equity interest in our development subsidiary for zipalertinib to Taiho, and in connection with the sale and pursuant to a co-development agreement, we are co-developing zipalertinib with an affiliate of Taiho. We hold the intellectual property rights for CLN-978 and CLN-418, and we hold intellectual property rights or exclusive options for worldwide intellectual property for our earlier-stage programs. The following table shows our ownership interest as of December 31, 2023 in our development subsidiaries and their product candidates:

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 December 31, 2023, we have received net proceeds of $579.6 million from equity financings, inclusive of our net proceeds of $264.5 million from our initial public offering ("IPO"). 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 Cullinan Pearl Corp. ("Cullinan Pearl") to Taiho in June 2022.

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 December 31, 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 7 of our notes to the consolidated financial statements in this Annual Report on Form 10-K for additional detail regarding the 2024 Private Placement.

Previous wording

As of December 31, 2023, we had cash, cash equivalents, short-term investments, and interest receivable of $468.3 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 incurred significant operating losses, with the exception of 2022, and have had negative cash flows from operations since our inception. As of December 31, 2023, we had an accumulated deficit of $200.9 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 December 31, 2024, we had cash, cash equivalents, and short-term investments of $399.0 million, and long-term investments and interest receivable of $207.9 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 December 31, 2024, we had an accumulated deficit of $368.2 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

Following the sale of our equity interest in Cullinan Pearl in the second quarter of 2022, development costs and any future potential pre-tax profits from potential U.S. sales of zipalertinib are shared equally between us and Taiho.

Current wording

Development costs and any future potential pre-tax profits from U.S. sales of zipalertinib are shared equally between us and Taiho.

Previous wording

The following table summarizes our research and development expenses for 2023 and 2022 (in thousands):

Current wording

For full year 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 recast prior period financial information to conform to the new presentation. The following table summarizes our research and development expenses for 2024 and 2023 (in thousands):

Previous wording

The $56.2 million increase in research and development expenses in 2023 compared to 2022 was primarily related to increased clinical costs ($33.3 million), an upfront fee due upon in-licensing CLN-418 ($25.0 million), higher personnel costs due to increased headcount and expansion of operations to support our research and development activities ($9.1 million), and higher equity-based compensation costs ($1.2 million), partially offset by lower preclinical costs ($11.0 million) some of which is allocated to product candidates in the above table.

Current wording

The $5.3 million decrease in research and development expenses in 2024 compared to 2023 was primarily related to the one-time upfront in-licensing fee for CLN-418 in 2023 ($25.0 million), and decreases in other licensing costs ($1.2 million), and chemistry, manufacturing and controls ("CMC") costs ($5.4 million), partially offset by increases clinical costs ($9.8 million), personnel costs due to increased headcount and expansion of operations to support our research and development activities ($6.6 million), preclinical costs ($5.3 million), equity-based compensation costs ($3.0 million), and other research and development costs ($1.7 million).

Previous wording

The increase of $2.3 million in general and administrative expenses in 2023 compared to 2022 was primarily due to an increase in personnel costs ($3.1 million), an increase in equity-based compensation expense ($1.3 million), and higher occupancy and other costs to support our expanded operations ($0.8 million), partially offset by one-time costs related to the sale of Cullinan Pearl in 2022 that did not recur in 2023 ($2.0 million), and lower legal and other professional service fees ($0.9 million).

Current wording

The $11.5 million increase in general and administrative expenses in 2024 compared to 2023 was primarily due to an increase in professional fees ($4.7 million), an increase in equity-based compensation expense ($4.4 million), an increase in personnel costs ($1.7 million), and an increase in occupancy, insurance and other costs ($0.9 million).

Previous wording

The $15.2 million increase in other income in 2023 compared to 2022 was primarily related to higher interest income earned.

Current wording

The $7.6 million increase in other income in 2024 compared to 2023 was primarily related to higher interest income earned.

Previous wording

The income tax benefit recognized for 2023 represents return to provision adjustments for the utilization of 2022 and historical tax attributes against the gain on sale of Cullinan Pearl and the expected utilization of tax attributes generated during 2023 that can be carried back to 2022. The income tax expense recognized for 2022 represents the tax from the gain on sale of Cullinan Pearl, including the expected utilization of tax attributes generated during 2022 and the release of valuation allowance for the expected utilization of certain historical tax attributes against the gain from the sale.

Current wording

The income tax expense recognized for 2024 was driven by the finalization of estimates upon filing our 2023 tax return for the utilization of federal research and development credits generated during 2023 that were carried back to tax year 2022. The income tax benefit recognized for 2023 was driven by the finalization of estimates upon filing our 2022 tax return for the utilization of 2022 and historical tax attributes against the gain on sale of our equity interest in Cullinan Pearl Corp. ("Cullinan Pearl") and the expected utilization of tax attributes generated during 2023 that could be carried back to tax year 2022 and used against the gain on sale of Cullinan Pearl.

Previous wording

We have incurred significant operating losses, with the exception of 2022, 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 December 31, 2023, we had cash, cash equivalents, short-term investments, and interest receivable of $468.3 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 December 31, 2024, we had cash, cash equivalents, and short-term investments of $399.0 million, and long-term investments and interest receivable of $207.9 million.

Previous wording

Based on our current operational plans and assumptions, we expect that our current cash, cash equivalents, investments, and interest receivable, will be sufficient to fund operations into the second half of 2026. We have based these estimates on assumptions that may prove to be wrong, and we could utilize our available capital resources sooner than we expect. We cannot guarantee that we will be able to raise additional capital on reasonable terms or at all.

Current wording

Based on our current operational plans and assumptions, we expect that our current cash, cash equivalents, investments, and interest receivable, will be sufficient to fund operations into 2028. We have based these estimates on assumptions that may prove to be wrong, and we could utilize our available capital resources sooner than we expect. We cannot guarantee that we will be able to raise additional capital on reasonable terms or at all.

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. In the second quarter of 2023, we sold approximately 3.3 million shares under the ATM and received net proceeds of $38.4 million, after deducting commissions. We have not subsequently made sales under the ATM. As of December 31, 2023, we had $85.6 million in shares of our common stock remaining under the ATM.

Current 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 2024. Through December 31, 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 December 31, 2024, we had $85.6 million in shares of our common stock remaining under the ATM.

Previous wording

During 2022, our operating activities used $126.7 million of cash, which primarily consisted of our operating expenses of $103.7 million excluding non-cash items and $37.8 million in payments for a portion of our estimated tax liability from the gain on sale of Cullinan Pearl, partially offset by interest income of $7.9 million excluding amortization on marketable securities, and a benefit of $6.9 million 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

During 2024, our operating activities used $145.3 million of cash, which primarily consisted of our operating expenses, excluding non-cash items, of $158.8 million and a $2.8 million net change in our non-tax operating assets and liabilities, partially offset by interest income, excluding accretion on marketable securities, of $14.2 million, and an income tax refund of $2.3 million. The non-cash operating expenses primarily consisted of equity-based compensation expense.

Previous wording

During 2023, our operating activities used $134.3 million of cash, which primarily consisted of our operating expenses of $159.9 million excluding non-cash items, partially offset by interest income of $11.5 million excluding accretion on marketable securities, a benefit of $9.3 million from the net change in our non-tax operating assets and liabilities, income tax refunds of $4.4 million, and sublease income of $0.5 million. The non-cash operating expenses primarily consisted of equity-based compensation expense.

Current wording

During 2023, our operating activities used $134.3 million of cash, which primarily consisted of our operating expenses, excluding non-cash items, of $159.9 million, partially offset by interest income, excluding accretion on marketable securities, of $11.5 million, a benefit of $9.3 million from the net change in our non-tax operating assets and liabilities, income tax refunds of $4.4 million, and sublease income of $0.5 million. The non-cash operating expenses primarily consisted of equity-based compensation expense.

Previous wording

During 2023, our investing activities provided $35.8 million of cash, which primarily consisted proceeds of $409.4 million from the maturities of marketable securities, partially offset by the purchase of marketable securities of $373.4 million.

Current wording

During 2023, our investing activities provided $35.8 million of cash, which primarily consisted of proceeds of $409.4 million from the maturities of marketable securities, partially offset by the purchase of marketable securities of $373.4 million.

Previous wording

During 2022, our financing activities used $25.9 million of cash, which primarily consisted of $33.3 million paid to acquire shares of our CLN-619 development subsidiary that were held by noncontrolling interests, partially offset by proceeds of $6.0 million from stock option exercises and proceeds of $1.2 million from the issuance of noncontrolling interests in our CLN-619 development subsidiary.

Current wording

During 2024, net cash provided by financing activities was $266.2 million, which consisted of $262.7 million of net proceeds from the issuance of common stock under our 2024 Private Placement and $8.0 million in net proceeds from the issuance of common stock under our 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.

Previous wording

During 2023, our financing activities provided $40.8 million of cash, which primarily consisted of $38.4 million of net proceeds from the issuance of common stock under our ATM, proceeds of $1.8 million from the issuance of a convertible note by our CLN-619 development subsidiary to a noncontrolling interest, and net issuance of common stock under equity-based compensation plans of $0.5 million.

Current wording

During 2023, our financing activities provided $40.8 million of cash, which primarily consisted of $38.4 million of net proceeds from the issuance of common stock under our ATM, proceeds of $1.8 million from the issuance of a convertible note by our CLN-619 development subsidiary to a noncontrolling interest, and net issuance of common stock under our equity-based compensation plans of $0.5 million.

Previous wording

We expect our expenses to continue to increase in connection with our ongoing activities, particularly as we advance the clinical trials and manufacturing of our product candidates along with preclinical activities for our current and potential future product candidates. In addition, we have and will continue to incur additional costs associated with operating as a public company, including significant legal, accounting, investor relations and other expenses.

Current wording

We expect our expenses to continue to increase in connection with our ongoing activities, particularly as we:

Previous wording

hire and retain additional personnel, such as non-clinical, clinical, pharmacovigilance, quality assurance, regulatory affairs, manufacturing, distribution, legal, compliance, medical affairs, finance, general and administrative, commercial, and scientific personnel; and

Current wording

hire and retain additional personnel, such as nonclinical, clinical, pharmacovigilance, quality assurance, regulatory affairs, manufacturing, distribution, legal, compliance, medical affairs, finance, general and administrative, commercial, and scientific personnel; and

Previous wording

Based on our current operational plans and assumptions, we expect that our current cash, cash equivalents, investments, and interest receivable will be sufficient to fund operations into the second half of 2026. We have based these estimates on assumptions that may prove to be wrong, and we could utilize our available capital resources sooner than we expect. As we progress with our development programs and the regulatory review process, we expect to incur significant expenses related to product manufacturing, pre-commercial activities and commercialization. We may also require additional capital to pursue in-licenses or acquisitions of other programs to further expand our pipeline.

Current wording

Based on our current operational plans and assumptions, we expect that our current cash, cash equivalents, investments, and interest receivable will be sufficient to fund operations into 2028. We have based these estimates on assumptions that may prove to be wrong, and we could utilize our available capital resources sooner than we expect. As we progress with our development programs and the regulatory review process, we expect to incur significant expenses related to product manufacturing, pre-commercial activities and commercialization. We may also require additional capital to pursue in-licenses or acquisitions of other programs to further expand our pipeline.

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 sheet as of December 31, 2023 and 2022.

Current 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 December 31, 2024 and 2023.

Previous wording

As of December 31, 2023, total future minimum lease payments were $4.1 million with $1.7 million payable within 12 months. See Note 13 of our consolidated financial statements included in this Annual Report on Form 10-K for further detail on our lease obligations and the timing of expected future payments.

Current wording

As of December 31, 2024, total future minimum lease payments were $2.3 million with $1.5 million payable within 12 months. See Note 12 of our consolidated financial statements included in this Annual Report on Form 10-K for further detail on our lease obligations and the timing of expected future payments.

Previous wording

We measure the fair value of market-based restricted stock units ("RSUs") on the grant date using a Monte Carlo simulation model. We estimate the fair value of stock options using the Black-Scholes option pricing model. Both the Monte Carlo simulation model and the Black-Scholes option pricing model require the input of objective and subjective assumptions. Certain assumptions used, including our expected stock price volatility, represent management’s estimates and involve inherent uncertainties and the application of management’s judgment. As a result, if factors change and management uses different assumptions, equity-based compensation expense could be materially different for future awards.

Current wording

We estimate the fair value of stock options using the Black-Scholes option pricing model, which requires the input of objective and subjective assumptions. Certain assumptions used, including our expected stock price volatility, represent management’s estimates and involve inherent uncertainties and the application of management’s judgment. As a result, if factors change and management uses different assumptions, equity-based compensation expense could be materially different for future awards.

Previous wording

We do not have sufficient historical or implied volatility data for our common stock necessary to estimate expected volatility over a period of time commensurate with the expected term of our stock option awards. Prior to 2023, the expected volatility used in the Black-Scholes option pricing model for new options was based on historical volatilities of the stock prices of similar entities within our industry over a period of time commensurate with the expected term assumption. In 2023, we determined that a sufficient amount of historical information was available regarding the volatility of our stock price to begin using a blended rate that combines our historical volatility with the historical volatilities of the stock prices of similar entities within our industry over a period of time commensurate with the expected term assumption.

Current wording

We do not have sufficient historical or implied volatility data for our common stock necessary to estimate expected volatility over a period of time commensurate with the expected term of our stock option awards. We use a blended rate to calculate expected volatility that combines our historical volatility with the historical volatilities of the stock prices of similar entities within our industry over a period of time commensurate with the expected term assumption.
Rearranged current paragraphs (1)

Current report — wording carried from elsewhere

continue the research and development of our current and future product candidates and programs;
Rearranged previous paragraphs (2)

Previous report — wording carried elsewhere

Gain on Sale of Cullinan Pearl

Previous report — wording carried elsewhere

Gain on Sale of Cullinan Pearl