Heron Patrick J bought MIRM
January 23, 2026 · Form 4 insider transaction
Heron Patrick J bought 131,425 shares of Mirum Pharmaceuticals, Inc. at $68.48 per share, a transaction worth $9.00M. The trade was recorded as open-market purchase and disclosed on an SEC Form 4, filed 4 days after the transaction.
Direction
Acquired (buy-side)
Shares
131,425
Price
$68.48
Total value
$9.00M
InsiderHeron Patrick J
RoleDirector, 10% owner
SecurityCommon Stock
Transaction codeP: Open-market purchase
Transaction dateJanuary 23, 2026
Filing dateJanuary 27, 2026
Shares owned after459,010
OwnershipIndirect
10b5-1 planNo
AmendedNo
Footnotes
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. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. The Reporting Person is one of two managing members of FHMLS X, L.L.C. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.