Mirum Pharmaceuticals, Inc. (MIRM) Insider Ownership

Historic Insider Ownership Trends

As of May 30, 2026, Mirum Pharmaceuticals's top three insider holders are James E Flynn (TenPercentOwner, 3.24Mn shares), Scott D Sandell (TenPercentOwner, 2.20Mn shares), Anthony A. Jr. Florence (TenPercentOwner, 2.20Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Eric Bjerkholt Chief Financial Officer 49,788 0 17 Mar, 2026
Scott D Sandell - 0 2,199,372 15 Jun, 2023
Michael G Grey Executive Chairman 0 186,410 01 Oct, 2024
Forest Baskett - 0 2,187,791 15 Jun, 2023
Timothy P Walbert - 5,703 0 02 Jun, 2025
James E Flynn - 0 3,244,434 08 Jun, 2022
Patrick J Heron - 0 459,010 27 Jan, 2026
Laura Brege - 15,703 0 12 Sep, 2025
Paul Edward Walker - 0 2,186,357 15 Jun, 2023
Anthony A. Jr. Florence - 384 2,197,591 15 Jun, 2023
Ali Behbahani - 0 2,186,378 15 Jun, 2023
Christopher Peetz Chief Executive Officer 194,309 0 17 Mar, 2026
Mohamad Makhzoumi - 0 2,197,744 15 Jun, 2023
Peter Radovich President And Coo 40,272 0 17 Mar, 2026
Joanne Quan Chief Medical Officer 18,864 0 17 Mar, 2026
Enterprise Associates 16, L.P. New - 2,186,243 0 15 Jun, 2023
Partners 16, L.P. Nea - 0 2,186,243 15 Jun, 2023
William Fairey - 2,500 0 12 Jun, 2025
Carmen Chang - 135 2,186,243 15 Jun, 2023
Pamela Vig Chief Scientific Officer 27,406 0 25 Jun, 2024
Ian Clements Chief Financial Officer 30,011 0 14 Nov, 2022
Niall O'Donnell - 0 1,621,118 15 Nov, 2022
Lara Longpre Chief Development Officer 104,407 0 05 Feb, 2024
Edwin Jonathan Tucker Chief Medical Officer 45,838 0 15 Nov, 2021
Lon Cardon - 5,703 0 02 Jun, 2025
Jolanda Howe Svp, Global Controller 8,429 0 17 Mar, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
15 Apr, 2026 Saira Ramasastry Common Stock A 2,000 $23.51 2,000 D M
15 Apr, 2026 Saira Ramasastry Common Stock D 2,000 $96.90 0 D S
15 Apr, 2026 Saira Ramasastry Stock Option (right to buy) D 2,000 $0.00 2,000 D M
15 Mar, 2026 Eric Bjerkholt Common Stock A 13,334 - 57,075 D M
15 Mar, 2026 Jolanda Howe Common Stock A 2,658 - 7,161 D M
15 Mar, 2026 Joanne Quan Common Stock A 13,334 - 26,151 D M
15 Mar, 2026 Christopher Peetz Common Stock A 25,000 - 185,294 D M
15 Mar, 2026 Joanne Quan Common Stock A 13,334 - 26,151 D M
16 Mar, 2026 Saira Ramasastry Common Stock A 2,000 $23.51 2,000 D M
15 Mar, 2026 Joanne Quan Common Stock A 13,334 - 26,151 D M
15 Mar, 2026 Peter Radovich Common Stock A 7,220 - 33,787 D M
16 Mar, 2026 Eric Bjerkholt Common Stock D 7,287 $91.98 49,788 D S
16 Mar, 2026 Saira Ramasastry Common Stock D 2,000 $90.76 0 D S
16 Mar, 2026 Joanne Quan Common Stock D 7,287 $91.98 18,864 D S
15 Mar, 2026 Christopher Peetz Common Stock A 50,000 - 235,294 D M
16 Mar, 2026 Joanne Quan Common Stock D 7,287 $91.98 18,864 D S
15 Mar, 2026 Jolanda Howe Common Stock A 6,000 - 13,161 D M
15 Mar, 2026 Peter Radovich Common Stock A 23,000 - 56,787 D M
16 Mar, 2026 Joanne Quan Common Stock D 7,287 $91.98 18,864 D S
15 Mar, 2026 Joanne Quan Performance Restricted Stock Units D 13,334 $0.00 6,666 D M