Over the 90-day window ending December 12, 2025, Solid Biosciences's three dominant insider ownership positions are held by Director Ian F Smith (126.69K shares), Director Ilan Ganot (110.25K shares), President And CEO Alexander Cumbo (81.39K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Advisors Llc Perceptive | 11,833,539 | 21 Feb, 2025 | |
| Capital Life Sciences Investors, Llc Bain | 5,034,582 | 21 Feb, 2025 | |
| Capital Management, L.P. Adage | 4,248,084 | 19 Feb, 2025 | |
| Capital Management, L.P. Ra | 4,192,216 | 12 Jan, 2024 | |
| Adam Koppel | 4,034,582 | 12 Jan, 2024 | |
| Jennifer Lynn Ziolkowski | CFO And Treasurer & Asst. Secy | 22,377 | 29 Jan, 2021 |
| Joel Solomon Zev Schneider | Chief Operating Officer | 15,752 | 15 Mar, 2022 |
| Ian F Smith | 126,692 | 07 Oct, 2025 | |
| Ilan Ganot | 110,251 | 13 Nov, 2025 | |
| Alexander Cumbo | President And CEO | 81,388 | 04 Dec, 2025 |
| Gabriel Brooks | Chief Medical Officer | 33,819 | 21 Oct, 2025 |
| David T Howton | Chief Operating Officer | 32,908 | 04 Dec, 2025 |
| Kevin Tan | CFO & Treasurer | 32,250 | 18 Feb, 2025 |
| Jessie Hanrahan | Chief Regulatory Officer | 26,660 | 04 Dec, 2025 |
| Paul Herzich | Chief Technology Officer | 26,622 | 04 Dec, 2025 |
| Carl Ashley Morris | Chief Scientific Officer | 19,760 | 31 Jan, 2023 |
| Jennifer Marlowe | Cso | 6,998 | 05 Dec, 2023 |
| Clare Kahn | 2,960 | 13 Mar, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 02 Dec, 2025 | Jessie Hanrahan | Common Stock | A | 11,862 | - | 31,143 | D | M |
| 02 Dec, 2025 | Alexander Cumbo | Common Stock | A | 28,612 | - | 92,196 | D | M |
| 02 Dec, 2025 | David T Howton | Common Stock | A | 13,051 | - | 37,840 | D | M |
| 02 Dec, 2025 | Paul Herzich | Common Stock | A | 7,239 | - | 29,323 | D | M |
| 03 Dec, 2025 | Alexander Cumbo | Common Stock | D | 10,808 | $5.11 | 81,388 | D | S |
| 03 Dec, 2025 | Paul Herzich | Common Stock | D | 2,701 | $5.11 | 26,622 | D | S |
| 03 Dec, 2025 | David T Howton | Common Stock | D | 4,932 | $5.11 | 32,908 | D | S |
| 03 Dec, 2025 | Jessie Hanrahan | Common Stock | D | 4,483 | $5.11 | 26,660 | D | S |
| 10 Nov, 2025 | Ilan Ganot | Common Stock | D | 3,278 | $4.12 | 95,412 | D | S |
| 18 Oct, 2025 | Gabriel Brooks | Common Stock | A | 9,750 | - | 36,714 | D | M |
| 20 Oct, 2025 | Gabriel Brooks | Common Stock | D | 2,895 | $5.96 | 33,819 | D | S |
| 06 Oct, 2025 | Ian F Smith | Common Stock | A | 4,573 | - | 126,692 | D | M |
| 06 Jul, 2025 | Ian F Smith | Common Stock | A | 4,573 | - | 122,119 | D | M |
| 06 Apr, 2025 | Ian F Smith | Common Stock | A | 4,574 | - | 117,546 | D | M |
| 11 Mar, 2025 | Clare Kahn | Common Stock | A | 1,860 | $5.34 | 2,960 | D | P |
| 11 Mar, 2025 | Clare Kahn | - | - | 2,960 | D | |||
| 19 Feb, 2025 | Capital Life Sciences Investors, Llc Bain | Common Stock | A | 1,000,000 | $4.03 | 5,034,582 | I | P |
| 19 Feb, 2025 | Advisors Llc Perceptive | Common Stock | A | 5,000,000 | $4.03 | 11,833,539 | I | P |
| 19 Feb, 2025 | Capital Life Sciences Investors, Llc Bain | - | - | 5,034,582 | I | |||
| 18 Feb, 2025 | Capital Management, L.P. Adage | - | - | 4,248,084 | I |