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$MIRM All transactions

Mirum Pharmaceuticals, Inc.

M

$ Value

$0

Shares

5,703

Price

$0

Filed

Jun 2

Insider

Name

Heron Patrick J

Title

CIK

0001365617

Roles

Director

Transaction Details

Transaction Date

2025-05-29

Code

M

Table

Derivative

Ownership

Direct

Equity Swap

No

Shares After

Footnotes

Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock (or its cash equivalent, at the discretion of the Issuer). | 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 is one of two managing members of FHMLS IX, L.L.C. The Reporting Person disclaims beneficial ownership of such securities 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. 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. | The restricted stock unit vests on the first anniversary of the grant date, provided that it will in any case be fully vested on the date of the Issuer's 2025 annual stockholder meeting. | The shares vest on the first anniversary of the grant date, provided that the option will in any case be fully vested on the date of the Issuer's 2026 annual stockholder meeting. | Each deferred stock unit represents a contingent right to receive one share of the Issuer's common stock and will vest on the first anniversary of the grant date, provided that it will in any case be fully vested on the date of the Issuer's 2026 annual stockholder meeting. Each vested deferred stock unit will be paid out in the Issuer's common stock upon the earliest to occur of (i) a change in control of the Issuer and (ii) within 60 days following separation from service with the Issuer.

Filing Info

Accession No.

0001415889-25-015305

Form Type

4

Issuer CIK

0001759425

Heron Patrick J's History

Date Ticker Type Value
2026-01-23 MIRM J
2026-01-23 MIRM $9.0M
2025-09-26 MBX $12.0M
2025-06-23 HLVX A $0
2025-06-13 ARQT $35K
2025-06-12 ARQT A $0
2025-06-12 ARQT A $0
2025-06-05 ARQT $5K
2025-06-05 MBX A $0
2025-06-04 ARQT $25K

Other Insiders at MIRM (90d)

Insider Bought Sold Last
Heron Patrick J $9.0M 2026-01-23
BJERKHOLT ERIC
CHIEF FINANCIAL OFFICER
$101K 2026-01-28
Ramasastry Saira $398K 2026-04-15
Peetz Christopher
CHIEF EXECUTIVE OFFICER
$1.6M 2026-02-02
Radovich Peter
PRESIDENT AND COO
$574K 2026-02-02
Quan Joanne
CHIEF MEDICAL OFFICER
2026-01-28
Howe Jolanda
SVP, GLOBAL CONTROLLER
$181K 2026-02-02