Mirum Pharmaceuticals (MIRM) COO sells 2,631 shares to cover taxes

Rhea-AI Filing Summary

Mirum Pharmaceuticals President and COO Peter Radovich reported a sale of company common stock in a Form 4 filing. On February 2, 2026, he sold 2,631 shares of common stock at an average price of $103.3035 per share. According to the footnote, the shares were sold to cover tax withholding obligations associated with the vesting of restricted stock units. After this transaction, he beneficially owned 20,655 shares of Mirum Pharmaceuticals common stock directly.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Radovich Peter

(Last) (First) (Middle)

C/O MIRUM PHARMACEUTICALS, INC.

989 E HILLSDALE BLVD., SUITE 300

(Street)

FOSTER CITY CA 94404

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Mirum Pharmaceuticals, Inc. [ MIRM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	PRESIDENT AND COO

3. Date of Earliest Transaction (Month/Day/Year)
02/02/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/02/2026		S(1)		2,631	D	$103.3035	20,655	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Shares sold to cover tax withholding obligations associated with the vesting of restricted stock units.

	/s/ Judit Ryvkin, Attorney-in-Fact	02/03/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What insider transaction did Mirum Pharmaceuticals (MIRM) report for its President and COO?

Mirum Pharmaceuticals reported that President and COO Peter Radovich sold 2,631 shares of common stock. The transaction took place on February 2, 2026, and was disclosed in a Form 4 insider filing under Section 16(a) of the Securities Exchange Act of 1934.

How many Mirum Pharmaceuticals shares did Peter Radovich sell, and at what price?

Peter Radovich sold 2,631 shares of Mirum Pharmaceuticals common stock. The shares were sold at an average price of $103.3035 per share. This specific trade and pricing are detailed in Table I of the Form 4 insider transaction report filed with the SEC.

Why were Peter Radovich’s Mirum Pharmaceuticals shares sold in this Form 4 filing?

The shares were sold to cover tax withholding obligations tied to the vesting of restricted stock units. This explanation appears in the footnote, which states the sale’s purpose, indicating the transaction was connected to equity compensation rather than a discretionary open-market sale.

How many Mirum Pharmaceuticals shares does Peter Radovich own after this transaction?

After the reported sale, Peter Radovich beneficially owned 20,655 shares of Mirum Pharmaceuticals common stock. The Form 4 states this post-transaction holding in the column for “Amount of Securities Beneficially Owned Following Reported Transaction(s)” and notes the ownership form as direct.

What is the role of Peter Radovich at Mirum Pharmaceuticals mentioned in the filing?

The filing lists Peter Radovich as an officer of Mirum Pharmaceuticals with the title “PRESIDENT AND COO.” This designation appears in the relationship section, which identifies him as an executive officer rather than a director or 10% owner for purposes of this insider report.

What type of security was involved in Peter Radovich’s reported transaction?

The transaction involved Mirum Pharmaceuticals common stock, classified as a non-derivative security in Table I. No derivative securities such as options or warrants are reported in Table II of this Form 4, which is shown as empty in the provided content.