Christopher Peetz - Jan 6, 2022 Form 4 Insider Report for Mirum Pharmaceuticals, Inc. (MIRM)

Role: President and CEO, Director
Signature: /s/ Jody Howe, Attorney-in-Fact
Stock symbol: MIRM
Transactions as of: Jan 6, 2022
Transactions value $: $0
Form type: 4
Date filed: 1/7/2022, 03:54 PM
Previous filing: Jan 4, 2022
Next filing: May 12, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MIRM	Common Stock	Award	$0	+40K	+142.72%	$0.00	68K	Jan 6, 2022	Direct	F1
holding	MIRM	Common Stock						202K	Jan 6, 2022	By The Peetz Family Trust

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	+240K		$0.00	240K	Jan 6, 2022	Common Stock	240K	$15.87	Direct	F2

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

Explanation of Responses:

Id	Content
F1	Represents restricted stock unit award granted under the Issuer's 2019 Equity Incentive Plan.
F2	1/4th of the shares vest one year after January 6, 2022 (the "Vesting Commencement Date") and the balance of the shares vest in a series of 36 successive equal monthly installments measured from the first anniversary of the Vesting Commencement Date.