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).
| 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.
| 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 |