Barinthus Biotherapeutics plc. (BRNS) Insider Ownership

Historic Insider Ownership Trends

As of April 17, 2026, the three largest insider holders of BRNS are Investment Management Ltd Mg (TenPercentOwner, 5.20Mn shares), William Enright (Chief Executive Officer, 728.45K shares), Graham Griffiths (Chief Business Officer, 104.21K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Investment Management Ltd Mg - 0 5,197,349 03 Oct, 2022
William Enright Chief Executive Officer 0 728,454 29 Mar, 2023
Graham Griffiths Chief Business Officer 104,209 0 26 Aug, 2022
Robin Wright - 48,256 0 01 Jun, 2023
Joseph Scheeren - 23,000 0 28 Jun, 2023
Alex Hammacher - 3,000 0 04 Apr, 2022
Christopher Ellis Chief Operating Officer 75 0 26 Aug, 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.

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
10 Jun, 2025 Robin Wright Share Option (Right to Buy) A 20,174 $0.00 20,174 D A
10 Jun, 2025 Karen A Dawes Share Option (Right to Buy) A 20,174 $0.00 20,174 D A
10 Jun, 2025 Anne M. Phillips Share Option (Right to Buy) A 20,174 $0.00 20,174 D A
10 Jun, 2025 Pierre A. Morgon Share Option (Right to Buy) A 20,174 $0.00 20,174 D A
10 Jun, 2025 Alex Hammacher Share Option (Right to Buy) A 20,174 $0.00 20,174 D A
10 Jun, 2025 Joseph Scheeren Share Option (Right to Buy) A 20,174 $0.00 20,174 D A
03 Feb, 2025 Graham Griffiths Share Option (Right to Buy) A 200,000 $0.00 200,000 D A
03 Feb, 2025 Gemma Brown Share Option (Right to Buy) A 160,000 $0.00 160,000 D A
03 Feb, 2025 William Enright Share Option (Right to Buy) A 600,000 $0.00 600,000 D A
03 Feb, 2025 Leon Hooftman Share Option (Right to Buy) A 140,000 $0.00 140,000 D A
03 Jun, 2024 Leon Hooftman Share Option (Right to Buy) A 195,166 $0.00 195,166 D A
10 May, 2024 Pierre A. Morgon Share Option (Right to Buy) A 19,516 $0.00 19,516 D A
10 May, 2024 Karen A Dawes Share Option (Right to Buy) A 19,516 $0.00 19,516 D A
10 May, 2024 Joseph Scheeren Share Option (Right to Buy) A 19,516 $0.00 19,516 D A
10 May, 2024 Alex Hammacher Share Option (Right to Buy) A 19,516 $0.00 19,516 D A
10 May, 2024 Robin Wright Share Option (Right to Buy) A 19,516 $0.00 19,516 D A
10 May, 2024 Anne M. Phillips Share Option (Right to Buy) A 19,516 $0.00 19,516 D A
02 Jan, 2024 Nadege Pelletier Share Option (Right to Buy) A 105,000 $0.00 105,000 D A
02 Jan, 2024 William Enright Share Option (Right to Buy) A 443,981 $0.00 443,981 D A
02 Jan, 2024 Gemma Brown Share Option (Right to Buy) A 193,000 $0.00 193,000 D A