Reported relationships
Latest disclosed role at each company.
No relationships currently tracked through insider filings.
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
No balances currently tracked through insider filings.
Past disclosures · reporting ended (1)
No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.
Barinthus Biotherapeutics plc.
Report date September 09, 2026 · Filed September 09, 2026
Section 16 reporting ended · disclosed 2026-09-09. Current position is not established by this disclosure.
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Ordinary SharesSEC Table I · non-derivative | Direct | 0 |
Last balance in matching sequence
After 2026-09-09 transaction · row 2
Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rowsRow 1 · 2026-09-09 · Grant · Acquired 361,530 · Balance 361,530 F1: The Ordinary Shares may be represented by American Depositary Shares ("ADSs" and together with the Ordinary Shares, the "Shares"), each of which currently represents one Ordinary Share. F2: This Form 4 reports securities transacted in connection with the Agreement and Plan of Merger, dated September 29, 2025, as amended (the "Merger Agreement") by and among the Issuer, Beacon Topco, Inc. ("Topco"), a Delaware corporation and a direct wholly owned subsidiary of the Issuer, Cdog Merger Sub, Inc., a Delaware corporation and a direct wholly owned subsidiary of Topco, and Clywedog Therapeutics, Inc., a Delaware corporation. On September 9, 2026 (the "Effective Time"), in connection with the effectiveness of the scheme of arrangement under Part 26 of the United Kingdom Companies Act 2006 (the "Scheme") contemplated by the Merger Agreement, Topco acquired the entire issued share capital of the Issuer, resulting in the Issuer becoming a direct wholly owned subsidiary of Topco. F3: Represents restricted share units ("RSUs") previously granted to the Reporting Person, vesting of which was subject to completion of the transactions contemplated by the Merger Agreement. Each RSU represented the contingent right to receive one Share of the Issuer. At the Effective time, each RSU, whether or not then vested, was automatically released in consideration of the assumption of such RSU by Topco and converted into an RSU relating to the common stock, $0.0001 par value per share, of Topco (the "Topco Common Stock"). Row 2 · 2026-09-09 · Disposition to issuer · Disposed 361,530 · Balance 0 F1: The Ordinary Shares may be represented by American Depositary Shares ("ADSs" and together with the Ordinary Shares, the "Shares"), each of which currently represents one Ordinary Share. F2: This Form 4 reports securities transacted in connection with the Agreement and Plan of Merger, dated September 29, 2025, as amended (the "Merger Agreement") by and among the Issuer, Beacon Topco, Inc. ("Topco"), a Delaware corporation and a direct wholly owned subsidiary of the Issuer, Cdog Merger Sub, Inc., a Delaware corporation and a direct wholly owned subsidiary of Topco, and Clywedog Therapeutics, Inc., a Delaware corporation. On September 9, 2026 (the "Effective Time"), in connection with the effectiveness of the scheme of arrangement under Part 26 of the United Kingdom Companies Act 2006 (the "Scheme") contemplated by the Merger Agreement, Topco acquired the entire issued share capital of the Issuer, resulting in the Issuer becoming a direct wholly owned subsidiary of Topco. F3: Represents restricted share units ("RSUs") previously granted to the Reporting Person, vesting of which was subject to completion of the transactions contemplated by the Merger Agreement. Each RSU represented the contingent right to receive one Share of the Issuer. At the Effective time, each RSU, whether or not then vested, was automatically released in consideration of the assumption of such RSU by Topco and converted into an RSU relating to the common stock, $0.0001 par value per share, of Topco (the "Topco Common Stock"). |
| Share Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $2.00 · Expires 2034-06-03 | Direct | 0 |
Reported balance
After 2026-09-09 transaction · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · 2026-09-09 · Disposition to issuer · Disposed 195,166 · Balance 0 F2: This Form 4 reports securities transacted in connection with the Agreement and Plan of Merger, dated September 29, 2025, as amended (the "Merger Agreement") by and among the Issuer, Beacon Topco, Inc. ("Topco"), a Delaware corporation and a direct wholly owned subsidiary of the Issuer, Cdog Merger Sub, Inc., a Delaware corporation and a direct wholly owned subsidiary of Topco, and Clywedog Therapeutics, Inc., a Delaware corporation. On September 9, 2026 (the "Effective Time"), in connection with the effectiveness of the scheme of arrangement under Part 26 of the United Kingdom Companies Act 2006 (the "Scheme") contemplated by the Merger Agreement, Topco acquired the entire issued share capital of the Issuer, resulting in the Issuer becoming a direct wholly owned subsidiary of Topco. F4: Pursuant to the Merger Agreement, at the Effective Time, each option to acquire Shares under the Issuer's equity plans that was outstanding as of immediately prior to the Effective Time ceased to represent a right to acquire Shares of the Issuer, and was converted into an option to acquire shares of Topco Common Stock and assumed by Topco on the same terms and conditions (including applicable vesting and exercisability conditions) as were applicable to such option immediately prior to the Effective Time. F1: The Ordinary Shares may be represented by American Depositary Shares ("ADSs" and together with the Ordinary Shares, the "Shares"), each of which currently represents one Ordinary Share. |
| Share Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $1.00 · Expires 2035-02-03 | Direct | 0 |
Reported balance
After 2026-09-09 transaction · row 4
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 4 · 2026-09-09 · Disposition to issuer · Disposed 140,000 · Balance 0 F2: This Form 4 reports securities transacted in connection with the Agreement and Plan of Merger, dated September 29, 2025, as amended (the "Merger Agreement") by and among the Issuer, Beacon Topco, Inc. ("Topco"), a Delaware corporation and a direct wholly owned subsidiary of the Issuer, Cdog Merger Sub, Inc., a Delaware corporation and a direct wholly owned subsidiary of Topco, and Clywedog Therapeutics, Inc., a Delaware corporation. On September 9, 2026 (the "Effective Time"), in connection with the effectiveness of the scheme of arrangement under Part 26 of the United Kingdom Companies Act 2006 (the "Scheme") contemplated by the Merger Agreement, Topco acquired the entire issued share capital of the Issuer, resulting in the Issuer becoming a direct wholly owned subsidiary of Topco. F4: Pursuant to the Merger Agreement, at the Effective Time, each option to acquire Shares under the Issuer's equity plans that was outstanding as of immediately prior to the Effective Time ceased to represent a right to acquire Shares of the Issuer, and was converted into an option to acquire shares of Topco Common Stock and assumed by Topco on the same terms and conditions (including applicable vesting and exercisability conditions) as were applicable to such option immediately prior to the Effective Time. F1: The Ordinary Shares may be represented by American Depositary Shares ("ADSs" and together with the Ordinary Shares, the "Shares"), each of which currently represents one Ordinary Share. |
Filing footnotes · ownership attribution and instrument terms
F1: The Ordinary Shares may be represented by American Depositary Shares ("ADSs" and together with the Ordinary Shares, the "Shares"), each of which currently represents one Ordinary Share.
F2: This Form 4 reports securities transacted in connection with the Agreement and Plan of Merger, dated September 29, 2025, as amended (the "Merger Agreement") by and among the Issuer, Beacon Topco, Inc. ("Topco"), a Delaware corporation and a direct wholly owned subsidiary of the Issuer, Cdog Merger Sub, Inc., a Delaware corporation and a direct wholly owned subsidiary of Topco, and Clywedog Therapeutics, Inc., a Delaware corporation. On September 9, 2026 (the "Effective Time"), in connection with the effectiveness of the scheme of arrangement under Part 26 of the United Kingdom Companies Act 2006 (the "Scheme") contemplated by the Merger Agreement, Topco acquired the entire issued share capital of the Issuer, resulting in the Issuer becoming a direct wholly owned subsidiary of Topco.
F3: Represents restricted share units ("RSUs") previously granted to the Reporting Person, vesting of which was subject to completion of the transactions contemplated by the Merger Agreement. Each RSU represented the contingent right to receive one Share of the Issuer. At the Effective time, each RSU, whether or not then vested, was automatically released in consideration of the assumption of such RSU by Topco and converted into an RSU relating to the common stock, $0.0001 par value per share, of Topco (the "Topco Common Stock").
F4: Pursuant to the Merger Agreement, at the Effective Time, each option to acquire Shares under the Issuer's equity plans that was outstanding as of immediately prior to the Effective Time ceased to represent a right to acquire Shares of the Issuer, and was converted into an option to acquire shares of Topco Common Stock and assumed by Topco on the same terms and conditions (including applicable vesting and exercisability conditions) as were applicable to such option immediately prior to the Effective Time.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 09, 2026 Filed Sep 9, 2026 20:19 UTC | Barinthus Biotherapeutics plc. BRNS · Entity 9597 | Disposition to issuerShare Option (Right to Buy) · Derivative | 140,000 | $0.00 Strike: $1.00 | $0.00 |
DisclosureSEC source: 0001104659-26-106338 · tm2625057-4_4seq1.xml · derivative · entry 4 Hooftman Leon · CIK 0002027157 · Chief Medical Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Ordinary Shares · 140,000 shares Expires 2035-02-03 F2 · kind: This Form 4 reports securities transacted in connection with the Agreement and Plan of Merger, dated September 29, 2025, as amended (the "Merger Agreement") by and among the Issuer, Beacon Topco, Inc. ("Topco"), a Delaware corporation and a direct wholly owned subsidiary of the Issuer, Cdog Merger Sub, Inc., a Delaware corporation and a direct wholly owned subsidiary of Topco, and Clywedog Therapeutics, Inc., a Delaware corporation. On September 9, 2026 (the "Effective Time"), in connection with the effectiveness of the scheme of arrangement under Part 26 of the United Kingdom Companies Act 2006 (the "Scheme") contemplated by the Merger Agreement, Topco acquired the entire issued share capital of the Issuer, resulting in the Issuer becoming a direct wholly owned subsidiary of Topco. F4 · derivative.exercise_date: Pursuant to the Merger Agreement, at the Effective Time, each option to acquire Shares under the Issuer's equity plans that was outstanding as of immediately prior to the Effective Time ceased to represent a right to acquire Shares of the Issuer, and was converted into an option to acquire shares of Topco Common Stock and assumed by Topco on the same terms and conditions (including applicable vesting and exercisability conditions) as were applicable to such option immediately prior to the Effective Time. F1 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares ("ADSs" and together with the Ordinary Shares, the "Shares"), each of which currently represents one Ordinary Share. Read SEC document |
| September 09, 2026 Filed Sep 9, 2026 20:19 UTC | Barinthus Biotherapeutics plc. BRNS · Entity 9597 | Disposition to issuerShare Option (Right to Buy) · Derivative | 195,166 | $0.00 Strike: $2.00 | $0.00 |
DisclosureSEC source: 0001104659-26-106338 · tm2625057-4_4seq1.xml · derivative · entry 3 Hooftman Leon · CIK 0002027157 · Chief Medical Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Ordinary Shares · 195,166 shares Expires 2034-06-03 F2 · kind: This Form 4 reports securities transacted in connection with the Agreement and Plan of Merger, dated September 29, 2025, as amended (the "Merger Agreement") by and among the Issuer, Beacon Topco, Inc. ("Topco"), a Delaware corporation and a direct wholly owned subsidiary of the Issuer, Cdog Merger Sub, Inc., a Delaware corporation and a direct wholly owned subsidiary of Topco, and Clywedog Therapeutics, Inc., a Delaware corporation. On September 9, 2026 (the "Effective Time"), in connection with the effectiveness of the scheme of arrangement under Part 26 of the United Kingdom Companies Act 2006 (the "Scheme") contemplated by the Merger Agreement, Topco acquired the entire issued share capital of the Issuer, resulting in the Issuer becoming a direct wholly owned subsidiary of Topco. F4 · derivative.exercise_date: Pursuant to the Merger Agreement, at the Effective Time, each option to acquire Shares under the Issuer's equity plans that was outstanding as of immediately prior to the Effective Time ceased to represent a right to acquire Shares of the Issuer, and was converted into an option to acquire shares of Topco Common Stock and assumed by Topco on the same terms and conditions (including applicable vesting and exercisability conditions) as were applicable to such option immediately prior to the Effective Time. F1 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares ("ADSs" and together with the Ordinary Shares, the "Shares"), each of which currently represents one Ordinary Share. Read SEC document |
| September 09, 2026 Filed Sep 9, 2026 20:19 UTC | Barinthus Biotherapeutics plc. BRNS · Entity 9597 | Disposition to issuerOrdinary Shares | 361,530 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001104659-26-106338 · tm2625057-4_4seq1.xml · nonDerivative · entry 2 Hooftman Leon · CIK 0002027157 · Chief Medical Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 F1 · security: The Ordinary Shares may be represented by American Depositary Shares ("ADSs" and together with the Ordinary Shares, the "Shares"), each of which currently represents one Ordinary Share. F2 · kind: This Form 4 reports securities transacted in connection with the Agreement and Plan of Merger, dated September 29, 2025, as amended (the "Merger Agreement") by and among the Issuer, Beacon Topco, Inc. ("Topco"), a Delaware corporation and a direct wholly owned subsidiary of the Issuer, Cdog Merger Sub, Inc., a Delaware corporation and a direct wholly owned subsidiary of Topco, and Clywedog Therapeutics, Inc., a Delaware corporation. On September 9, 2026 (the "Effective Time"), in connection with the effectiveness of the scheme of arrangement under Part 26 of the United Kingdom Companies Act 2006 (the "Scheme") contemplated by the Merger Agreement, Topco acquired the entire issued share capital of the Issuer, resulting in the Issuer becoming a direct wholly owned subsidiary of Topco. F3 · shares: Represents restricted share units ("RSUs") previously granted to the Reporting Person, vesting of which was subject to completion of the transactions contemplated by the Merger Agreement. Each RSU represented the contingent right to receive one Share of the Issuer. At the Effective time, each RSU, whether or not then vested, was automatically released in consideration of the assumption of such RSU by Topco and converted into an RSU relating to the common stock, $0.0001 par value per share, of Topco (the "Topco Common Stock"). F3 · price: Represents restricted share units ("RSUs") previously granted to the Reporting Person, vesting of which was subject to completion of the transactions contemplated by the Merger Agreement. Each RSU represented the contingent right to receive one Share of the Issuer. At the Effective time, each RSU, whether or not then vested, was automatically released in consideration of the assumption of such RSU by Topco and converted into an RSU relating to the common stock, $0.0001 par value per share, of Topco (the "Topco Common Stock"). Read SEC document |
| September 09, 2026 Filed Sep 9, 2026 20:19 UTC | Barinthus Biotherapeutics plc. BRNS · Entity 9597 | GrantOrdinary Shares | 361,530 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001104659-26-106338 · tm2625057-4_4seq1.xml · nonDerivative · entry 1 Hooftman Leon · CIK 0002027157 · Chief Medical Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 361,530 F1 · security: The Ordinary Shares may be represented by American Depositary Shares ("ADSs" and together with the Ordinary Shares, the "Shares"), each of which currently represents one Ordinary Share. F2 · kind: This Form 4 reports securities transacted in connection with the Agreement and Plan of Merger, dated September 29, 2025, as amended (the "Merger Agreement") by and among the Issuer, Beacon Topco, Inc. ("Topco"), a Delaware corporation and a direct wholly owned subsidiary of the Issuer, Cdog Merger Sub, Inc., a Delaware corporation and a direct wholly owned subsidiary of Topco, and Clywedog Therapeutics, Inc., a Delaware corporation. On September 9, 2026 (the "Effective Time"), in connection with the effectiveness of the scheme of arrangement under Part 26 of the United Kingdom Companies Act 2006 (the "Scheme") contemplated by the Merger Agreement, Topco acquired the entire issued share capital of the Issuer, resulting in the Issuer becoming a direct wholly owned subsidiary of Topco. F3 · shares: Represents restricted share units ("RSUs") previously granted to the Reporting Person, vesting of which was subject to completion of the transactions contemplated by the Merger Agreement. Each RSU represented the contingent right to receive one Share of the Issuer. At the Effective time, each RSU, whether or not then vested, was automatically released in consideration of the assumption of such RSU by Topco and converted into an RSU relating to the common stock, $0.0001 par value per share, of Topco (the "Topco Common Stock"). F3 · price: Represents restricted share units ("RSUs") previously granted to the Reporting Person, vesting of which was subject to completion of the transactions contemplated by the Merger Agreement. Each RSU represented the contingent right to receive one Share of the Issuer. At the Effective time, each RSU, whether or not then vested, was automatically released in consideration of the assumption of such RSU by Topco and converted into an RSU relating to the common stock, $0.0001 par value per share, of Topco (the "Topco Common Stock"). Read SEC document |
| February 03, 2025 Filed Feb 5, 2025 16:24 UTC | Barinthus Biotherapeutics plc. BRNS · Entity 9597 | GrantShare Option (Right to Buy) · Derivative | 140,000 | $0.00 Strike: $1.00 | $0.00 |
DisclosureSEC source: 0001828185-25-000009 · wk-form4_1738790637.xml · derivative · entry 1 Hooftman Leon · CIK 0002027157 · Chief Medical Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 140,000 Underlying: Ordinary Shares · 140,000 shares Expires 2035-02-03 F1 · derivative.exercise_date: The shares underlying this option shall vest and become exercisable in three equal annual installments, with the first installment vesting on February 3, 2026. F2 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share. Read SEC document |
| June 03, 2024 Filed Jun 18, 2024 16:07 UTC | Barinthus Biotherapeutics plc. BRNS · Entity 9597 | GrantShare Option (Right to Buy) · Derivative | 195,166 | $0.00 Strike: $2.00 | $0.00 |
DisclosureSEC source: 0001104659-24-072802 · tm2417524-2_4seq1.xml · derivative · entry 1 Hooftman Leon · CIK 0002027157 · Chief Medical Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 195,166 Underlying: Ordinary Shares · 195,166 shares Expires 2034-06-03 F1 · derivative.exercise_date: The shares underlying this option shall vest and become exercisable in three equal annual installments, with the first installment vesting on June 3, 2025. F2 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.