# EDGAR Filing Document

**Accession Number:** 0001759425
**File Stem:** 0001759425-26-000028
**Filing Date:** 2026-4
**Character Count:** 2103
**Document Hash:** 5ae20f3888a9a9c1eb1e04cb746f0c72
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001759425-26-000028.hdr.sgml**: 20260423

**ACCESSION NUMBER**: 0001759425-26-000028

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260423

**DATE AS OF CHANGE**: 20260423

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Mirum Pharmaceuticals, Inc.
- **CENTRAL INDEX KEY:** 0001759425
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 831281555
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38981
- **FILM NUMBER:** 26889290

**BUSINESS ADDRESS:**
- **STREET 1:** 989 EAST HILLSDALE BOULEVARD, SUITE 300
- **CITY:** FOSTER CITY
- **STATE:** CA
- **ZIP:** 94404
- **BUSINESS PHONE:** 650-667-4085

**MAIL ADDRESS:**
- **STREET 1:** 989 EAST HILLSDALE BOULEVARD, SUITE 300
- **CITY:** FOSTER CITY
- **STATE:** CA
- **ZIP:** 94404

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**SCHEDULE 14A INFORMATION**

**Proxy Statement Pursuant to Section 14(a) of the**

**Securities Exchange Act of 1934**

**(Amendment No.)**

________________

Filed by the Registrant ⌧ Filed by a party other than the Registrant □

Check the appropriate box:

□ Preliminary Proxy Statement

□ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

□ Definitive Proxy Statement

⌧ Definitive Additional Materials

□ Soliciting Material Pursuant to § 240.14a-12

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| |
|:---|
| **Mirum Pharmaceuticals, Inc.** |
| **(Name of Registrant as Specified In Its Charter)** |
| **N/A** |
| **(Name of Person(s) Filing Proxy Statement if other than the Registrant)** |

---

Payment of Filing Fee (Check all boxes that apply)

⌧ No fee required

□ Fee paid previously with preliminary materials

□ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11

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