Mirum Pharmaceuticals, Inc. · NASDAQ:MIRM

Patrick J. Heron reported a 6.80% stake in Mirum Pharmaceuticals, Inc. (Schedule 13D/A)

Event Jan 23, 2026 · Filed Jan 27, 2026

Patrick J. Heron reported a 6.80% stake in Mirum Pharmaceuticals, Inc., 4,108,404 shares, with active intent on Jan 23, 2026. Filed Jan 27, 2026 (Schedule 13D/A).

Stake: 6.80%
Shares: 4,108,404
Intent: Active
What changed: Stake changed
Filed together: 17 holders

The filing in full

Holder	Stake	Shares
Frazier Life Sciences IX, L.P.	5.90%	3,566,912
FHMLS IX, L.P.	5.90%	3,566,912
FHMLS IX, L.L.C.	5.90%	3,566,912
Frazier Life Sciences X, L.P.	0.80%	459,010
FHMLS X, L.P.	0.80%	459,010
FHMLS X, L.L.C.	0.80%	459,010
Frazier Life Sciences Public Fund, L.P.	4.20%	2,514,947
FHMLSP, L.P.	4.20%	2,514,947
FHMLSP, L.L.C.	4.20%	2,514,947
Frazier Life Sciences XI, L.P.	1.80%	1,075,884
FHMLS XI, L.P.	1.80%	1,075,884
FHMLS XI, L.L.C.	1.80%	1,075,884
Frazier Life Sciences XII, L.P.	0.10%	62,931
FHMLS XII, L.P.	0.10%	62,931
FHMLS XII, L.L.C.	0.10%	62,931
James N. Topper	6.70%	4,025,922
Patrick J. Heron	6.80%	4,108,404

Source

View original at SEC

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