General and Administrative Expenses
General and administrative expenses were $19.3 million for the three months ended March 31, 2025, compared to general and administrative expenses of $18.0 million for the three months ended March 31, 2024. The increase of approximately $1.3 million was primarily associated with an increase in stock-based compensation expense, offset by a reduction in intellectual property costs and employee-related expenses.
Collaboration Expense, Net
Collaboration expense, net, was $57.5 million for the three months ended March 31, 2025, compared to $47.0 million for the three months ended March 31, 2024. The increase of approximately $10.5 million in collaboration expense, net, was primarily attributable to an increase in cost of goods sold and other commercial costs related to CASGEVY and collaboration expenses related to in vivo HSC editing, offset by our share of product sales.
Other Income, Net
Other income was $13.5 million for the three months ended March 31, 2025, compared to $24.7 million of income for the three months ended March 31, 2024. The decrease of approximately $11.2 million was primarily due to the change in fair value of corporate equity securities in the first quarter of 2025, as well as a decrease in interest income earned on cash, cash equivalents and marketable securities for the three months ended March 31, 2025.
Liquidity and Capital Resources
We have predominantly incurred losses and cumulative negative cash flows from operations since our inception. As of March 31, 2025, we had $1,855.3 million in cash, cash equivalents and marketable securities, of which approximately $108.7 million was held outside of the United States, and an accumulated deficit of $1,501.9 million. We anticipate that we will continue to incur losses for at least the next several years. We expect to continue to incur research and development costs and general and administrative expenses consistent with costs associated with research and development at companies of our size and stage of development, and, as a result, we will need additional capital to fund our operations, which we may raise through public or private equity or debt financings, strategic collaborations, or other sources.
At-the-Market Offerings
In August 2019, we entered into an Open Market Sale AgreementSM with Jefferies under which we were able to offer and sell, from time to time at our sole discretion through Jefferies, as our sales agent, our common shares, par value of CHF 0.03 per share, or the August 2019 Sales Agreement. In January 2021, in connection with the August 2019 Sales Agreement, we filed a prospectus supplement with the SEC to offer and sell, from time to time, common shares having aggregate gross proceeds of up to $600.0 million. In August 2024, we filed a new prospectus supplement with the SEC, which replaced the previous prospectus supplements filed in January 2021 and July 2021, respectively, to offer and sell, from time to time, the common shares remaining under the original prospectus supplement and July 2021 prospectus supplement having aggregate gross proceeds of up to $378.6 million, or, together with the January 2021 prospectus supplement and July 2021 prospectus supplement, the 2021 ATM.
For the three months ended March 31, 2025, we issued and sold an aggregate of 0.2 million common shares under the 2021 ATM at an average price of $54.33 per share for aggregate proceeds of $8.7 million. Activity under the 2021 ATM was not material for the three months ended March 31, 2024. Equity issuance costs, excluding stamp taxes, were not material for the three months ended March 31, 2025 and 2024.
As of March 31, 2025, we have common shares having aggregate gross proceeds up to $354.8 million remaining under our current prospectus supplement, and we have issued and sold an aggregate of 2.1 million common shares at an average price of $117.41 per share for aggregate proceeds of $241.9 million, which were net of equity issuance costs of $3.3 million, excluding stamp taxes.
Additional Financings
In February 2024, we entered into an investment agreement for the sale of approximately $280.0 million of our common shares to a group of institutional investors in a registered direct offering, at a price per share of $71.50. We received net proceeds of $279.0 million, excluding stamp taxes due of $2.8 million.
Funding Requirements
Our primary uses of capital are, and we expect will continue to be, research and development activities, manufacturing activities, compensation and related expenses, laboratory and related supplies, legal and other regulatory expenses, patent prosecution, filing, defense and intellectual property maintenance costs, and general overhead costs, including costs associated with operating as a public company. We expect to continue to incur operating expenses consistent with costs associated with research and development at companies of our size and stage of development, which may increase in the future to support continued research and development activities and potential commercialization of our product candidates.