Through the 90-day period concluding January 09, 2026, Mirum Pharmaceuticals's top three insider stakeholders include TenPercentOwner Enterprise Associates 16, L.P. New (2.19Mn shares), TenPercentOwner Partners 16, L.P. Nea (2.19Mn shares), Director Niall O'Donnell (1.62Mn shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Partners 16, L.P. Nea | 2,186,243 | 15 Jun, 2023 | |
| Enterprise Associates 16, L.P. New | 2,186,243 | 15 Jun, 2023 | |
| Niall O'Donnell | 1,621,118 | 15 Nov, 2022 | |
| James E Flynn | 1,540,190 | 08 Jun, 2022 | |
| Christopher Peetz | Chief Executive Officer | 345,534 | 20 Nov, 2025 |
| Michael G Grey | 186,410 | 23 Dec, 2025 | |
| Patrick J Heron | 174,375 | 02 Jun, 2025 | |
| Lara Longpre | Chief Development Officer | 104,407 | 05 Feb, 2024 |
| Edwin Jonathan Tucker | Chief Medical Officer | 45,838 | 15 Nov, 2021 |
| Eric Bjerkholt | Chief Financial Officer | 39,945 | 12 Sep, 2025 |
| Ian Clements | Chief Financial Officer | 30,011 | 14 Nov, 2022 |
| Pamela Vig | Chief Scientific Officer | 27,406 | 25 Jun, 2024 |
| Peter Radovich | President And Coo | 18,672 | 18 Mar, 2025 |
| Laura Brege | 15,703 | 12 Sep, 2025 | |
| Anthony A. Jr. Florence | 11,732 | 15 Jun, 2023 | |
| Scott D Sandell | 11,348 | 15 Jun, 2023 | |
| Mohamad Makhzoumi | 11,348 | 15 Jun, 2023 | |
| Timothy P Walbert | 5,703 | 02 Jun, 2025 | |
| Lon Cardon | 5,703 | 02 Jun, 2025 | |
| Joanne Quan | Chief Medical Officer | 5,649 | 21 Jan, 2025 |
| William Fairey | 2,500 | 13 Jun, 2025 | |
| Jolanda Howe | Svp And Global Controller | 2,426 | 08 Aug, 2025 |
| Forest Baskett | 1,548 | 15 Jun, 2023 | |
| Carmen Chang | 135 | 15 Jun, 2023 | |
| Ali Behbahani | 135 | 15 Jun, 2023 | |
| Paul Edward Walker | 114 | 15 Jun, 2023 |
* 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.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 31 Dec, 2025 | Christopher Peetz | Common Stock | D | 21,070 | $0.00 | 187,500 | I | G |
| 22 Dec, 2025 | Saira Ramasastry | Common Stock | A | 5,000 | $23.51 | 5,000 | D | M |
| 22 Dec, 2025 | Saira Ramasastry | Common Stock | D | 5,000 | $80.00 | 0 | D | S |
| 19 Dec, 2025 | Michael G Grey | Common Stock | A | 50,000 | $2.94 | 50,000 | D | M |
| 19 Dec, 2025 | Michael G Grey | Common Stock | D | 50,000 | $78.00 | 0 | D | S |
| 18 Dec, 2025 | Saira Ramasastry | Common Stock | D | 1,000 | $69.46 | 1,000 | D | S |
| 18 Dec, 2025 | Saira Ramasastry | Common Stock | A | 2,000 | $23.51 | 2,000 | D | M |
| 18 Dec, 2025 | Saira Ramasastry | Common Stock | D | 1,000 | $70.00 | 0 | D | S |
| 01 Dec, 2025 | Michael G Grey | Common Stock | A | 50,000 | $2.94 | 50,000 | D | M |
| 01 Dec, 2025 | Michael G Grey | Common Stock | D | 50,000 | $74.00 | 0 | D | S |
| 21 Nov, 2025 | Michael G Grey | Common Stock | D | 50,000 | $70.00 | 0 | D | S |
| 21 Nov, 2025 | Michael G Grey | Common Stock | A | 50,000 | $2.94 | 50,000 | D | M |
| 18 Nov, 2025 | Christopher Peetz | Common Stock | A | 19,133 | $19.24 | 158,034 | D | M |
| 12 Sep, 2025 | Eric Bjerkholt | Common Stock | D | 9,578 | $76.01 | 39,945 | D | S |
| 11 Sep, 2025 | Eric Bjerkholt | Common Stock | A | 18,333 | - | 49,523 | D | M |
| 11 Sep, 2025 | Laura Brege | Common Stock | D | 1,491 | $75.07 | 15,703 | D | S |
| 11 Sep, 2025 | Laura Brege | - | - | 17,194 | D | |||
| 11 Sep, 2025 | Laura Brege | - | - | 15,703 | D | |||
| 11 Sep, 2025 | Laura Brege | Common Stock | D | 15,509 | $74.34 | 17,194 | D | S |
| 11 Sep, 2025 | Laura Brege | Common Stock | A | 17,000 | $15.00 | 32,703 | D | M |