Frazier Life Sciences IX, L.P.

Holdings History for Mirum Pharmaceuticals, Inc. - Common Stock (MIRM)

Symbol: MIRM on Nasdaq
Investment type: Equity / Common Stock
Latest Disclosed Shares Owned: 4,108,404 shares
Security Ownership %: 6.8%

Patrick J. Heron ownership in Mirum Pharmaceuticals, Inc. Common Stock (MIRM)

27 Jan 2026 - Patrick J. Heron has filed an SCHEDULE 13D/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 4,108,404 shares of Mirum Pharmaceuticals, Inc. Common Stock (MIRM). This represents 6.8% ownership of the company. In their previous filing dated 04 Nov 2025, Frazier Life Sciences IX, L.P. had reported owning 3,735,220 shares, indicating an increase of +10%. .

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filing time
Patrick J. Heron	6.8%	-8.6%	$324,522,832	4,108,404	+373,184	+10%	$78.99	13D/A	23 Jan 2026	27 Jan 2026, 16:12
James N. Topper	7.4%	0%	$273,828,978	3,735,220	0		$73.31	13D/A	01 Nov 2025	04 Nov 2025, 17:26
James N. Topper	7.4%		$194,044,679	3,735,220			$51.95	13D/A	18 Aug 2025	20 Aug 2025, 17:17