Centessa Pharmaceuticals plc (CNTA) Insider Ownership

Historic Insider Ownership Trends

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).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
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