# EDGAR Filing Document

**Accession Number:** 0001650131
**File Stem:** 0001650131-26-000009
**Filing Date:** 2026-3
**Character Count:** 10219
**Document Hash:** 08ae9d6e63baa1eb3228a57f9b8cf2aa
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001650131-26-000009.hdr.sgml**: 20260317

**ACCESSION NUMBER**: 0001650131-26-000009

**CONFORMED SUBMISSION TYPE**: 144

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260317

**DATE AS OF CHANGE**: 20260317

**SUBJECT COMPANY**: 

**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:** 144
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 001-38981
- **FILM NUMBER:** 26764126

**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
**REPORTING-OWNER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Radovich Peter
- **CENTRAL INDEX KEY:** 0001650131

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 144

**MAIL ADDRESS:**
- **STREET 1:** C/O MIRUM PHARMACEUTICALS, INC.
- **STREET 2:** 989 EAST HILLSDALE BLVD., SUITE 300
- **CITY:** FOSTER CITY
- **STATE:** CA
- **ZIP:** 94404

## Ex-24

**POWER OF ATTORNEY**

(For Executing Forms 3, 4, 5 and 144)

Know all by these presents, that the undersigned hereby constitutes and appoints each of Doug Sheehy, Jody Howe and Judit Ryvkin of Mirum Pharmaceuticals, Inc. (the "***Company***"), signing individually, the undersigned's true and lawful attorneys-in-fact and agents to:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) prepare, execute in the undersigned's name and on the undersigned's behalf, and submit to the Securities and Exchange Commission (the "***SEC***") (i) Forms 3, 4 and 5 (including any amendments thereto) in accordance with Section 16(a) of the Securities Exchange Act of 1934, as amended (the "***Exchange Act***"), and the rules thereunder in the undersigned's capacity as an officer, director or beneficial owner of more than 10% of a registered class of securities of the Company and (ii) Form 144 (including any amendments thereto) in accordance with Rule 144 of the Securities Act of 1933, as amended, and the rules thereunder (the "***Securities Act***").;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) do and perform any and all acts for and on behalf of the undersigned that may be necessary or desirable to execute such Forms 3, 4, 5 or 144 (including amendments thereto) and timely file such forms with the SEC and any stock exchange or any similar authority; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) take any other action of any type whatsoever in connection with the foregoing that, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required of the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in the attorney-in-fact's discretion.

The undersigned hereby grants to each such attorneyinfact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorneyinfact, or such attorneyinfact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, and their substitutes, in serving in such capacity at the request of the undersigned, are not assuming (nor is the Company assuming) any of the undersigned's responsibilities to comply with Section 16 of the Exchange Act or Rule 144 of the Securities Act.

This Power of Attorney shall remain in full force and effect until the earliest to occur of (a) the undersigned is no longer required to file Forms 3, 4, 5 and 144 with respect to the undersigned's holdings of and transactions in securities issued by the Company, (b) revocation by the undersigned in a signed writing delivered to the Company and the foregoing attorneys-in fact or (c) as to any attorney-in-fact individually, until such attorney-in-fact is no longer employed by the Company.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of the date written below.

Date: <u>3/10/2026</u>

*<u>/s/ Peter Radovich</u>*

Name: Peter Radovich

332949445 v1

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 144

### NOTICE OF PROPOSED SALE OF SECURITIES
### PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933

### 144: Filer Information

**Filer CIK:** 0001650131

**Is this a LIVE or TEST Filing?:** LIVE

### Submission Contact Information
_Not provided in this filing._

### 144: Issuer Information

**Name of Issuer:** MIRUM PHARMACEUTICALS, INC.

**SEC File Number:** 001-38981

**Address of Issuer:** 989 E HILLSDALE BLVD., SUITE 300, FOSTER CITY, CA, 94404

**Phone:** 650-667-4085

**Name of Person for Whose Account the Securities are to Be Sold:** Peter Radovich

**Relationship to Issuer:** Officer

See the definition of "person" in paragraph (a) of Rule 144.
Information is to be given not only as to the person for whose account
the securities are to be sold but also as to all other persons
included in that definition. In addition, information shall be given
as to sales by all persons whose sales are required by paragraph (e)
of Rule 144 to be aggregated with sales for the account of the person
filing this notice.

### 144: Securities Information

|  |  |  |  |  |  |  |
|:---|:---|:---|:---|:---|:---|:---|
| Title of the Class of Securities To Be Sold | Name and Address of the Broker                                                      | Number of Shares or Other Units To Be Sold | Aggregate Market Value | Number of Shares or Other Units Outstanding | Approximate Date of Sale | Name the Securities Exchange |
| Common Stock                                | Morgan Stanley Smith Barney LLC<br>1 New York Plaza, 8th Floor<br>New York NY 10004 | 16515                                      | 1529949.60             | 60341617                                    | 03/16/2026               | NASDAQ                       |

Furnish the following information with respect to the acquisition of
the securities to be sold and with respect to the payment of all or
any part of the purchase price or other consideration therefor:

### 144: Securities To Be Sold

|  |  |  |  |  |  |  |  |
|:---|:---|:---|:---|:---|:---|:---|:---|
| Title of the Class | Date you Acquired | Nature of Acquisition Transaction                    | Name of Person from Whom Acquired | Is this a Gift? | Amount of Securities Acquired | Date of Payment | Nature of Payment *                          |
| Common Stock       | 03/15/2026        | Restricted Stock Units vesting under registered plan | Issuer                            | No              | 16515                         | 03/15/2026      | Compensation for services rendered to Issuer |

* If the securities were purchased and full payment therefor was not
made in cash at the time of purchase, explain in the table or in a
note thereto the nature of the consideration given. If the
consideration consisted of any note or other obligation, or if payment
was made in installments describe the arrangement and state when the
note or other obligation was discharged in full or the last
installment paid.

Furnish the following information as to all securities of the issuer
sold during the past 3 months by the person for whose account the
securities are to be sold.

### 144: Securities Sold During The Past 3 Months

|  |  |  |  |  |
|:---|:---|:---|:---|:---|
| Name and Address of Seller                                                                                           | Title of Securities Sold | Date of Sale | Amount of Securities Sold | Gross Proceeds |
| Peter Radovich<br>c/o Mirum Pharmaceuticals, Inc.<br>989 E Hillsdale Blvd., Suite 300<br>Foster City CA 94404        | Common Stock             | 01/22/2026   | 2382                      | 222300.69      |
| Peter Radovich<br>c/o Mirum Pharmaceuticals, Inc.<br>989 E. Hillsdale Blvd., Suite 300<br>Foster City CA 94404       | Common Stock             | 01/26/2026   | 3143                      | 302331.46      |
| Peter Radovich<br>c/o Mirum Pharmaceuticals, Inc.<br>989 East Hillsdale Boulevard, Suite 300<br>Foster City CA 94404 | Common Stock             | 02/02/2026   | 2631                      | 271791.51      |

### 144: Remarks and Signature

**Remarks:** This is a sell-to-cover transaction for taxes owed related to recent
vesting of stock unit awards granted by the Issuer.

**Date of Notice:** 03/17/2026

**Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1:** 01/31/2023

ATTENTION:

The person for whose account the securities to which this notice
relates are to be sold hereby represents by signing this notice that
he does not know any material adverse information in regard to the
current and prospective operations of the Issuer of the securities to
be sold which has not been publicly disclosed. If such person has
adopted a written trading plan or given trading instructions to
satisfy Rule 10b5-1 under the Exchange Act, by signing the form and
indicating the date that the plan was adopted or the instruction
given, that person makes such representation as of the plan adoption
or instruction date.

**Signature:** /s/ Judit Ryvkin, Attorney-in-Fact