Over the 90-day window ending December 12, 2025, Centessa Pharmaceuticals's three dominant insider ownership positions are held by Director Rubertis Francesco De (281.16K shares), President And Orexin Program Mario Alberto Accardi (178.80K shares), Chief Technology & Quality Ofc Tia L Bush (121.50K 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 |
| David M Chao | Chief Administrative Officer | 225,007 | 19 Mar, 2025 |
| Thomas Templeman | Chief Technology Officer | 188,244 | 04 Apr, 2023 |
| Mario Alberto Accardi | President And Orexin Program | 178,801 | 09 Dec, 2025 |
| Javad Shahidi | Chief Medical Officer | 158,932 | 04 Oct, 2022 |
| Gregory M Weinhoff | Chief Business Officer | 122,279 | 25 Jul, 2025 |
| Tia L Bush | Chief Technology & Quality Ofc | 121,503 | 18 Nov, 2025 |
| Iqbal J Hussain | General Counsel | 110,886 | 18 Nov, 2025 |
| Harris Rotman | SVP Regulatory Affairs | 62,625 | 02 Feb, 2024 |
| Aaron Kantoff | 60,000 | 18 Nov, 2021 | |
| Karen M. Anderson | Chief People Officer | 54,322 | 10 Feb, 2025 |
| Marella Thorell | Chief Accounting Officer | 53,101 | 23 Mar, 2022 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 09 Dec, 2025 | Mario Alberto Accardi | Ordinary Shares | D | 7,432 | $28.70 | 181,369 | D | S |
| 09 Dec, 2025 | Mario Alberto Accardi | Ordinary Shares | D | 2,568 | $29.21 | 178,801 | D | S |
| 08 Dec, 2025 | Mario Alberto Accardi | Ordinary Shares | A | 5,000 | $9.53 | 198,801 | D | M |
| 08 Dec, 2025 | Mario Alberto Accardi | Ordinary Shares | D | 10,000 | $30.00 | 188,801 | D | S |
| 17 Nov, 2025 | Tia L Bush | Ordinary Shares | A | 40,000 | $9.42 | 161,503 | D | M |
| 17 Nov, 2025 | Iqbal J Hussain | Ordinary Shares | A | 6,000 | $5.84 | 111,386 | D | M |
| 17 Nov, 2025 | Tia L Bush | Ordinary Shares | D | 40,000 | $28.00 | 121,503 | D | S |
| 17 Nov, 2025 | Iqbal J Hussain | Ordinary Shares | D | 6,000 | $27.64 | 105,386 | D | S |
| 12 Nov, 2025 | Tia L Bush | Ordinary Shares | A | 40,000 | $9.42 | 161,503 | D | M |
| 12 Nov, 2025 | Tia L Bush | Ordinary Shares | D | 40,000 | $26.00 | 121,503 | D | S |
| 01 Nov, 2025 | Mario Alberto Accardi | Ordinary Shares | D | 593 | $24.90 | 193,801 | D | F |
| 27 Oct, 2025 | Mario Alberto Accardi | Ordinary Shares | A | 5,000 | $8.01 | 202,394 | D | M |
| 27 Oct, 2025 | Mario Alberto Accardi | Ordinary Shares | D | 8,000 | $25.00 | 194,394 | D | S |
| 15 Oct, 2025 | Iqbal J Hussain | Ordinary Shares | A | 6,000 | $5.84 | 111,386 | D | M |
| 15 Oct, 2025 | Iqbal J Hussain | Ordinary Shares | D | 6,000 | $22.41 | 105,386 | D | S |
| 24 Sep, 2025 | Tia L Bush | Ordinary Shares | A | 35,000 | $9.42 | 156,503 | D | M |
| 24 Sep, 2025 | Tia L Bush | Ordinary Shares | D | 35,000 | $24.00 | 121,503 | D | S |
| 16 Sep, 2025 | Mario Alberto Accardi | Ordinary Shares | D | 7,430 | $21.33 | 198,136 | D | S |
| 16 Sep, 2025 | Mario Alberto Accardi | Ordinary Shares | D | 742 | $22.02 | 197,394 | D | S |
| 15 Sep, 2025 | Iqbal J Hussain | Ordinary Shares | A | 6,000 | $5.84 | 111,386 | D | M |