Company: MIRM
Filing Date: 2025-04-14
Form Type: DEF 14A
Source: 0001759425-25-000022
Chunk: 5

Company: Mirum Pharmaceuticals, Inc.
Filing Date: 2025-04-14
Form: DEF 14A
Chunk 5
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 your vote for any nominee you specify. For each of the other matters to be voted on, you may vote “For” or “Against” or abstain from voting.

The procedures for voting are fairly simple:

Stockholder of Record: Shares Registered in Your Name

If you are a stockholder of record, you may vote using the following mechanisms:

• To vote in person, come to the Annual Meeting at our headquarters located at 989 East Hillsdale Boulevard, Suite 300, Foster City, California 94404 and we will give you a ballot when you arrive.

• If you received a proxy card by mail, simply complete, sign and date the proxy card that may be delivered and return it promptly in the envelope provided. If you return your signed proxy card to us before the Annual Meeting, we will vote your shares as you direct.

• To vote over the telephone, dial toll-free 1-800-690-6903 using a touch-tone phone and follow the recorded instructions. You will be asked to provide the company number and control number from the Notice or proxy card. Your telephone vote must be received by 11:59 p.m. (Eastern Time) on May 28, 2025 to be counted.

#### Mirum Pharmaceuticals2025 Proxy Statement5

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Questions and Answers About These Proxy Materials and Voting

• To vote through the internet, go to www.proxyvote.com to complete an electronic proxy card. You will be asked to provide the company number and control number from the Notice or proxy card. Your internet vote must be received by 11:59 p.m. (Eastern Time) on May 28, 2025 to be counted.

Beneficial Owner: Shares Registered in the Name of Broker or Bank

If you are a beneficial owner of shares registered in the name of your broker, bank or other agent, you should have received a notice containing voting instructions from that organization rather than from the Company. You must follow these instructions for your bank, broker or other stockholder of record to vote your shares per your instructions. Alternatively, many brokers and banks provide the means to grant proxies or otherwise instruct them to vote your shares by telephone and via the internet by providing you with a control number via email or on your Notice or your voting instruction form. If your shares are held in an account with a broker, bank or other stockholder of record providing such a service, you may instruct them to vote your shares by telephone (by calling the number provided in the proxy materials)