Eric Bjerkholt - Sep 11, 2023 Form 4 Insider Report for Mirum Pharmaceuticals, Inc. (MIRM)

Role: Chief Financial Officer
Signature: /s/ Judit Ryvkin, Attorney-in-Fact
Stock symbol: MIRM
Transactions as of: Sep 11, 2023
Transactions value $: $296,492
Form type: 4
Date filed: 9/12/2023, 06:23 PM
Previous filing: Aug 23, 2023
Next filing: Dec 13, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MIRM	Common Stock	Purchase	$296K	+10K		$29.65	10K	Sep 11, 2023	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	MIRM	Stock Option (right to buy)	Award	$0	+110K		$0.00	110K	Sep 11, 2023	Common Stock	110K	$30.43	Direct	F2
transaction	MIRM	Restricted Stock Units	Award	$0	+55K		$0.00	55K	Sep 11, 2023	Common Stock	55K		Direct	F3, F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The price reported on this Form 4 is a weighted average price. The shares were purchased in multiple transactions ranging from $29.61 to $29.65, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each price within the range set forth herein.
F2	1/4th of the shares subject to the Option will vest one year after September 11, 2023 (the "Vesting Commencement Date") and the balance of the shares will vest in a series of 36 successive equal monthly installments measured from the first anniversary of the Vesting Commencement Date.
F3	Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.
F4	The restricted stock units vest in a series of three successive equal annual installments beginning on the one year anniversary of September 11, 2023.