9. Stock-Based Compensation

2011 Stock Incentive Plan

The Company’s 2011 Stock Incentive Plan, as amended, (the “2011 Plan”) provided for the Company to grant restricted stock, restricted stock units, incentive stock options and nonqualified stock options with respect to shares of common stock to employees, officers, directors, consultants and advisors of the Company. Incentive stock options could only be granted to employees. The 2011 Plan is administered by the board of directors, or at the discretion of the board of directors, by a committee of the board of directors. The exercise prices, vesting schedules and other restrictions of awards were determined at the discretion of the board of directors or by a committee of the board of directors if so delegated, except that the exercise price per share of stock options could not be less than 100% of the fair market value of a share of common stock on the date of grant and the term of stock option could not be greater than ten years. Upon the effective date of the 2024 Incentive Award Plan (the “2024 Plan”), as discussed below, the Company ceased granting equity awards under the 2011 Plan.

2024 Incentive Award Plan

On January 26, 2024, the Company’s board of directors adopted the 2024 Plan, which became effective on February 1, 2024. The 2024 Plan provides for the grant of restricted stock, restricted stock units, incentive stock options, nonqualified stock options, stock appreciation rights and other stock or cash-based awards with respect to shares of common stock to employees, officers, directors, consultants and advisors of the Company. The 2024 Plan is administered by the board of directors, or at the discretion of the board of directors, by a committee of the board of directors. The exercise prices, vesting schedules and other restrictions on awards are determined at the discretion of the board of directors or by a committee of the board of directors if so delegated, except that the term of any stock option may not be greater than ten years. The number of shares of the Company’s common stock initially reserved for issuance under the 2024 Plan was 4,298,825 shares plus the number of shares subject to awards outstanding under the 2011 Plan that expire, terminate or are otherwise

surrendered, cancelled, forfeited or repurchased by the Company on or after the effective date of the 2024 Plan. In addition, the number of shares of common stock available for issuance under the 2024 Plan is subject to an annual increase on the first day of each calendar year beginning on January 1, 2025, and ending on and including January 1, 2034, equal to the lesser of (i) 5% of the aggregate number of shares of Common Stock outstanding on the final day of the immediately preceding calendar year and (ii) such smaller number of shares of Common Stock as determined by the board of directors.

There were 3,907,210 and 3,035,013 shares available for future grant under the 2024 Plan as of March 31, 2026 and December 31, 2025, respectively.

2024 Employee Stock Purchase Plan

On January 26, 2024, the Company’s board of directors adopted the 2024 Employee Stock Purchase Plan (the “2024 ESPP Plan”), which became effective on February 1, 2024. The number of shares of the Company’s common stock initially reserved for issuance under the 2024 ESPP Plan was 487,070 shares, which is eligible for an annual increase on the first day of each calendar year beginning on January 1, 2025 and ending on and including January 1, 2034 equal to the lesser of (i) 1% of the shares of Common Stock outstanding on the final day of the immediately preceding calendar year and (ii) such smaller number of shares of Common Stock as determined by the board of directors.

The 2024 ESPP Plan provides for rolling six-month offering periods. The Company began its first offering period on August 1, 2025, and issued 433,740 shares of common stock on January 30, 2026 at the end of the offering period. There were 2,074,604 and 974,624 shares available for future grant under the 2024 ESPP Plan as of March 31, 2026 and December 31, 2025, respectively.

Stock-Based Compensation Expense

During the three months ended March 31, 2026, the Company granted to its employees stock options to purchase a total of 1,045,682 shares of common stock.