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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1759425	Mirum Pharmaceuticals Inc.	MIRM	()	4

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1365617	J Patrick Heron	C/O Frazier Life Sciences 70 Willow Road, Suite 200 Menlo Park CA 94025		Yes	No	Yes	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2023-08-31	147,991	$26.25	147,991	No	4	P	Indirect	By Frazier Life Sciences X, L.P.

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Indirect	By Frazier Life Sciences X, L.P.

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	3,566,912	Indirect	By Frazier Life Sciences IX, L.P.

Footnotes

The shares are held directly by Frazier Life Sciences IX, L.P. FHMLS IX, L.P. is the general partner of Frazier Life Sciences IX, L.P. FHMLS IX, L.L.C. is the general partner of FHMLS IX, L.P. The Reporting Person and James N. Topper are the managing members of FHMLS IX, L.L.C. and share voting and dispositive power over the shares held by Frazier Life Sciences IX, L.P. The Reporting Person disclaims beneficial ownership of the shares, except to the extent of his pecuniary interest therein.
The shares are held directly by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person and James N. Topper are the managing members of FHMLS X, L.L.C. and share voting and dispositive power over the shares held by Frazier Life Sciences X, L.P. The Reporting Person disclaims beneficial ownership of the shares, except to the extent of his pecuniary interest therein.