Over the 90-day window ending February 07, 2026, Centessa Pharmaceuticals's three dominant insider ownership positions are held by TenPercentOwner (Bermuda) Ltd Gap (9.68Mn shares), Chief Innovation Officer David J Grainger (990.29K shares), Evp & Chairman Of Development Antoine Yver (783.07K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| (Bermuda) Ltd Gap | 9,681,818 | 03 Jun, 2021 | |
| David J Grainger | Chief Innovation Officer | 990,290 | 02 Jan, 2024 |
| Antoine Yver | Evp & Chairman Of Development | 783,066 | 02 Jun, 2023 |
| Arjun Goyal | 462,585 | 19 May, 2025 | |
| Rubertis Francesco De | 281,162 | 23 Mar, 2022 | |
| Ventures Management (Jersey) Ltd Medicxi | 281,162 | 23 Mar, 2022 | |
| Saurabh Saha | Chief Executive Officer | 259,017 | 21 Jul, 2025 |
| Mario Alberto Accardi | Chief Executive Officer | 243,886 | 03 Feb, 2026 |
| David M Chao | Chief Administrative Officer | 225,007 | 19 Mar, 2025 |
| Thomas Templeman | Chief Technology Officer | 188,244 | 04 Apr, 2023 |
| Javad Shahidi | Chief Medical Officer | 158,932 | 04 Oct, 2022 |
| Tia L Bush | Chief Technology & Quality Ofc | 147,954 | 03 Feb, 2026 |
| Gregory M Weinhoff | Chief Business Officer | 139,121 | 03 Feb, 2026 |
| Iqbal J Hussain | Chief Legal Officer | 123,145 | 03 Feb, 2026 |
| Stephen Kanes | Chief Medical Officer | 120,000 | 03 Feb, 2026 |
| Karen M. Anderson | Chief People Officer | 72,716 | 03 Feb, 2026 |
| Harris Rotman | Svp Regulatory Affairs | 62,625 | 02 Feb, 2024 |
| Aaron Kantoff | 60,000 | 18 Nov, 2021 | |
| Marella Thorell | Chief Accounting Officer | 53,101 | 23 Mar, 2022 |
| John J Crowley | Chief Financial Officer | 45,000 | 03 Feb, 2026 |
| Raphael Deferiere | Chief Accounting Officer | 11,000 | 03 Feb, 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 |
|---|---|---|---|---|---|---|---|---|
| 02 Feb, 2026 | Gregory M Weinhoff | Ordinary Shares | A | 31,000 | $0.00 | 139,121 | D | A |
| 02 Feb, 2026 | John J Crowley | Ordinary Shares | A | 45,000 | $0.00 | 45,000 | D | A |
| 02 Feb, 2026 | Stephen Kanes | Ordinary Shares | A | 120,000 | $0.00 | 120,000 | D | A |
| 02 Feb, 2026 | Karen M. Anderson | Ordinary Shares | A | 29,000 | $0.00 | 72,716 | D | A |
| 02 Feb, 2026 | Iqbal J Hussain | Ordinary Shares | D | 38,951 | $25.15 | 57,645 | D | S |
| 02 Feb, 2026 | Iqbal J Hussain | Ordinary Shares | A | 40,000 | $0.00 | 97,645 | D | A |
| 02 Feb, 2026 | Iqbal J Hussain | Ordinary Shares | A | 20,000 | $0.00 | 117,645 | D | A |
| 02 Feb, 2026 | Tia L Bush | Ordinary Shares | A | 35,000 | $0.00 | 147,954 | D | A |
| 02 Feb, 2026 | Raphael Deferiere | Ordinary Shares | A | 11,000 | $0.00 | 11,000 | D | A |
| 02 Feb, 2026 | Mario Alberto Accardi | Ordinary Shares | A | 68,000 | $0.00 | 243,886 | D | A |
| 01 Feb, 2026 | Gregory M Weinhoff | Ordinary Shares | D | 14,158 | $24.57 | 108,121 | D | F |
| 01 Feb, 2026 | Karen M. Anderson | Ordinary Shares | D | 10,606 | $24.57 | 43,716 | D | F |
| 01 Feb, 2026 | Iqbal J Hussain | Ordinary Shares | D | 7,780 | $24.57 | 96,596 | D | F |
| 01 Feb, 2026 | Tia L Bush | Ordinary Shares | D | 8,549 | $24.57 | 112,954 | D | F |
| 01 Feb, 2026 | Mario Alberto Accardi | Ordinary Shares | D | 2,915 | $24.57 | 175,886 | D | F |
| 30 Jan, 2026 | Iqbal J Hussain | Ordinary Shares | D | 1,010 | $25.01 | 104,376 | D | S |
| 09 Dec, 2025 | Mario Alberto Accardi | Ordinary Shares | D | 2,568 | $29.21 | 178,801 | D | S |
| 09 Dec, 2025 | Mario Alberto Accardi | Ordinary Shares | D | 7,432 | $28.70 | 181,369 | D | S |
| 08 Dec, 2025 | Mario Alberto Accardi | Ordinary Shares | D | 10,000 | $30.00 | 188,801 | D | S |
| 08 Dec, 2025 | Mario Alberto Accardi | Ordinary Shares | A | 5,000 | $9.53 | 198,801 | D | M |