Company: MIRM
Filing Date: 2025-04-14
Form Type: DEF 14A
Source: 0001759425-25-000022
Chunk: 64

Company: Mirum Pharmaceuticals, Inc.
Filing Date: 2025-04-14
Form: DEF 14A
Chunk 64
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 amended in April 2020, April 2022, April 2024 and April 2025, each following a review of the program. As in effect for the first quarter of 2024, our compensation policy provided that each of our non-employee directors would receive the following compensation for service on the Board:

• an annual cash retainer of $45,000, with an additional cash retainer of $10,000 to the lead independent director, if any;

• an additional annual cash retainer of $10,000, $10,000 and $5,000 for service as a member of the Audit Committee, Compensation Committee and the Nominating Committee, respectively;

• an additional annual cash retainer of $60,000, $20,000, $20,000 and $10,000 for service as Chair of the Board, Audit Committee, Compensation Committee and the Nominating Committee, respectively;

• an initial option grant to purchase 34,000 shares of our common stock on the date of each such non-employee director’s appointment to the Board; and

• an annual option grant to purchase 17,000 shares of our common stock on the date of each of our annual stockholder meetings.

#### 54Mirum Pharmaceuticals2025 Proxy Statement

### TABLE OF CONTENTS

#### Non-Employee Director Compensation
Each of the option grants described above were granted under our 2019 Plan. Each initial option grant will vest and become exercisable in three equal annual installments over the three-year period following the date of grant, subject to the director’s continuous service as of each such date, and will vest in full upon a change of control. Each annual option grant will vest and become exercisable on the earlier of the first anniversary of the date of grant or the next annual stockholder meeting, subject to the director’s continuous service as of such date and will vest in full upon a change of control. The term of each option will be ten years, subject to earlier termination as provided in the 2019 Plan.

In April 2024, our Compensation Committee adopted a revised non-employee director compensation policy effective as of April 4, 2024 (the “ April 2024 Non-Employee Director Compensation Policy ”), which applied for the second quarter of 2024 onwards. The April 2024 Non-Employee Director Compensation Policy made no changes to the cash-based non- employee director compensation in effect prior to such revised policy, except to increase the annual cash retainer from