Company: PRME
Filing Date: 2025-04-22
Form Type: DEF 14A
Source: 0001628280-25-018704
Chunk: 30

Company: Prime Medicine, Inc.
Filing Date: 2025-04-22
Form: DEF 14A
Chunk 30
---
 of our common stock. As of December 31, 2024, Dr. Cahill, Mr. Nelsen, and Dr. Schenkein each held options to purchase an aggregate of 84,062 shares of common stock. As of December 31, 2024, Dr. Chung, Ms. Foster, and Mr. Kelly each held options to purchase an aggregate of 106,578 shares of common stock.

(4) For his services as a director, Mr. Marrazzo received options to purchase 45,000 shares of our common stock as part of the annual Board member grants. Under his advisory services agreement with the Company, the details of which are discussed in the Certain Relationships and Related Party Transaction section, Mr. Marrazzo also received options to purchase 250,000 shares of the our common stock and fees totaling $41,667 during 2024. As of December 31, 2024, Mr. Marrazzo held options to purchase an aggregate of 387,000 shares of common stock.

#### Non-Employee Director Compensation Policy
We adopted a non-employee director compensation policy in May 2022 designed to enable us to attract and retain, on a long-term basis, highly qualified non-employee directors. On May 17, 2024, our Board approved an amended

<div align='center'>18</div>

and restated non-employee director compensation policy based upon the recommendations of our Compensation Committee and Alpine Rewards, our independent compensation consultant.

Under the amended and restated policy, our non-employee directors are eligible to receive annual cash retainers (which are payable quarterly in arrears and prorated for partial years of service) and equity awards as set forth below:

| Annual Retainer for Board of Directors                                |     |   |        |
|:----------------------------------------------------------------------|:----|:--|-------:|
| All non-employee members (1)                                          |     | $ | 45,000 |
| Additional Retainer for Board Chair (2)                               |     | $ | 30,000 |
| Additional Retainer for Audit Committee                               |     |   |        |
| Chair (3)                                                             |     | $ | 20,000 |
| Non-chair members (4)                                                 |     | $ | 10,000 |
| Additional Retainer for Compensation Committee                        |     |   |        |
| Chair (5)                                                             |     | $ | 15,000 |
| Non-chair members (6)