Item 9B. Other Information

10b5-1 Plans

On November 23, 2025, Stéphane Bancel, our Chief Executive Officer, terminated a trading arrangement that was intended to satisfy the affirmative defense of Rule 10b5-1(c), which had been entered into on September 3, 2025, and was scheduled to commence as early as December 17, 2025, with a termination date of August 10, 2026. The plan provided for the potential sale of up to 1,439,788 shares of common stock. No shares of common stock were sold under the plan prior to its termination.

Mr. Bancel has two different stock option awards that will reach their ten-year expiration on August 10, 2026, including an option to purchase 558,394 shares and another option to purchase 193,321 shares (the Bancel Expiring Options). Mr. Bancel intends to contribute all of the after-tax proceeds from the exercise and sale of the Bancel Expiring Options to charitable causes. On November 28, 2025, Mr. Bancel adopted a trading arrangement that is intended to satisfy the affirmative defense of Rule 10b5-1(c) (the Bancel 10b5-1 Plan). Between May 13,2026 and August 10, 2026, the Bancel 10b5-1 Plan provides for the potential exercise of vested stock options and the associated sale of the Bancel Expiring Options, which represent up to 751,715 shares of the Company’s common stock in the aggregate. The Bancel 10b5-1 Plan expires on August 10, 2026, or upon the earlier completion of all authorized transactions under the plan.

Stephen Hoge, our President, has two different stock option awards that will reach their ten-year expiration on August 10, 2026, including an option to purchase 223,357 shares and another option to purchase 96,660 shares (the Hoge Expiring Options). On November 13, 2025, Dr. Hoge adopted a trading arrangement that is intended to satisfy the affirmative defense of Rule 10b5-1(c) (the Hoge 10b5-1 Plan). Between February 23, 2026 and August 10, 2026, the Hoge 10b5-1 Plan provides for the potential exercise of vested stock options and the associated sale of the Hoge Expiring Options, which represent up to 320,017 shares of the Company’s common stock in the aggregate. The Hoge 10b5-1 Plan expires on August 10, 2026, or upon the earlier completion of all authorized transactions under the plan.