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Heron Patrick J's Form 4 filing

Mirum Pharmaceuticals, Inc. (MIRM) · filed Jan 27, 2026

Accession no.
0001365617-26-000002
Filed
Jan 27, 2026
Trade date
Jan 23, 2026
Filing delay
4 days
Rule 10b5-1 plan
Not checked

This filing lists 2 non-derivative transactions. Open-market purchases total $9.00M. It was filed 4 days after the trade.

Reporting owners

A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.

Reporting owners on this filing
OwnerRelationship to the company
Heron Patrick JCIK 0001365617Director

Non-derivative securities (Table I)

Acquisitions and disposals of common stock and similar shares, one row per line on the filing.

Non-derivative transactions
Trade dateSecurityTransactionSharesPriceValueShares afterOwnershipFlags
Jan 23, 2026Common StockJOtherAcquired+159,277–F1–327,585Indirect
Jan 23, 2026Common StockPPurchaseAcquired+131,425$68.48+$8,999,984459,010Indirect

Footnotes and remarks

Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.

F1

Frazier Life Sciences X, L.P. received these shares in connection with merger of Bluejay Therapeutics, Inc. into the Issuer (the "Merger"). On the effective date of the Merger, the closing price of the Issuer's Common Stock was $94.29 per share.

Referenced by the price of 1 transaction in Table I.

Read the full filing on SEC EDGAR (opens in a new tab)