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Wright Robin

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78627
SEC CIK
0001851640

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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 / awardOwnership accountDisclosed shares / unitsDisclosure context
Ordinary SharesSEC Table I · non-derivativeDirect0 Reported balance After 2026-09-09 transaction · row 1 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 1 · 2026-09-09 · Disposition to issuer · Disposed 48,256 · 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: Pursuant to the Merger Agreement and in connection with the effectiveness of the Scheme, at the Effective Time, each Share of the Issuer was converted into the right to receive 0.111 shares of 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 $0.00 · Expires 2030-01-07Direct0 Reported balance After 2026-09-09 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2026-09-09 · Disposition to issuer · Disposed 20,394 · 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 $17.00 · Expires 2031-05-01Direct0 Reported balance After 2026-09-09 transaction · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 3 · 2026-09-09 · Disposition to issuer · Disposed 34,328 · 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 $4.27 · Expires 2032-06-15Direct0 Reported balance After 2026-09-09 transaction · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · 2026-09-09 · Disposition to issuer · Disposed 18,604 · 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 $2.27 · Expires 2033-05-11Direct0 Reported balance After 2026-09-09 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2026-09-09 · Disposition to issuer · Disposed 19,197 · 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 $2.34 · Expires 2034-05-10Direct0 Reported balance After 2026-09-09 transaction · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · 2026-09-09 · Disposition to issuer · Disposed 19,516 · 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 2035-06-10Direct0 Reported balance After 2026-09-09 transaction · row 7 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 7 · 2026-09-09 · Disposition to issuer · Disposed 20,174 · 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: Pursuant to the Merger Agreement and in connection with the effectiveness of the Scheme, at the Effective Time, each Share of the Issuer was converted into the right to receive 0.111 shares of 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

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Purchases/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 dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
September 09, 2026 Filed Sep 9, 2026 20:21 UTC Barinthus Biotherapeutics plc. BRNS · Entity 9597 Disposition to issuerShare Option (Right to Buy) · Derivative 20,174 $0.00 Strike: $1.00 $0.00
Disclosure

SEC source: 0001104659-26-106343 · tm2625057-8_4seq1.xml · derivative · entry 7

Wright Robin · CIK 0001851640 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 20,174 shares

Expires 2035-06-10

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 20:21 UTC Barinthus Biotherapeutics plc. BRNS · Entity 9597 Disposition to issuerShare Option (Right to Buy) · Derivative 19,516 $0.00 Strike: $2.34 $0.00
Disclosure

SEC source: 0001104659-26-106343 · tm2625057-8_4seq1.xml · derivative · entry 6

Wright Robin · CIK 0001851640 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 19,516 shares

Expires 2034-05-10

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 20:21 UTC Barinthus Biotherapeutics plc. BRNS · Entity 9597 Disposition to issuerShare Option (Right to Buy) · Derivative 19,197 $0.00 Strike: $2.27 $0.00
Disclosure

SEC source: 0001104659-26-106343 · tm2625057-8_4seq1.xml · derivative · entry 5

Wright Robin · CIK 0001851640 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 19,197 shares

Expires 2033-05-11

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 20:21 UTC Barinthus Biotherapeutics plc. BRNS · Entity 9597 Disposition to issuerShare Option (Right to Buy) · Derivative 18,604 $0.00 Strike: $4.27 $0.00
Disclosure

SEC source: 0001104659-26-106343 · tm2625057-8_4seq1.xml · derivative · entry 4

Wright Robin · CIK 0001851640 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 18,604 shares

Expires 2032-06-15

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 20:21 UTC Barinthus Biotherapeutics plc. BRNS · Entity 9597 Disposition to issuerShare Option (Right to Buy) · Derivative 34,328 $0.00 Strike: $17.00 $0.00
Disclosure

SEC source: 0001104659-26-106343 · tm2625057-8_4seq1.xml · derivative · entry 3

Wright Robin · CIK 0001851640 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 34,328 shares

Expires 2031-05-01

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 20:21 UTC Barinthus Biotherapeutics plc. BRNS · Entity 9597 Disposition to issuerShare Option (Right to Buy) · Derivative 20,394 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001104659-26-106343 · tm2625057-8_4seq1.xml · derivative · entry 2

Wright Robin · CIK 0001851640 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 20,394 shares

Expires 2030-01-07

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 20:21 UTC Barinthus Biotherapeutics plc. BRNS · Entity 9597 Disposition to issuerOrdinary Shares 48,256 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-26-106343 · tm2625057-8_4seq1.xml · nonDerivative · entry 1

Wright Robin · CIK 0001851640 · Director

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: Pursuant to the Merger Agreement and in connection with the effectiveness of the Scheme, at the Effective Time, each Share of the Issuer was converted into the right to receive 0.111 shares of common stock, $0.0001 par value per share, of Topco (the "Topco Common Stock").

F3 · price: Pursuant to the Merger Agreement and in connection with the effectiveness of the Scheme, at the Effective Time, each Share of the Issuer was converted into the right to receive 0.111 shares of common stock, $0.0001 par value per share, of Topco (the "Topco Common Stock").

Read SEC document
June 10, 2025 Filed Jun 11, 2025 17:17 UTC Barinthus Biotherapeutics plc. BRNS · Entity 9597 GrantShare Option (Right to Buy) · Derivative 20,174 $0.00 Strike: $1.00 $0.00
Disclosure

SEC source: 0001828185-25-000047 · wk-form4_1749676649.xml · derivative · entry 1

Wright Robin · CIK 0001851640 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,174

Underlying: Ordinary Shares · 20,174 shares

Expires 2035-06-10

F1 · derivative.exercise_date: The shares underlying this option shall vest in full on the earlier of (i) June 10, 2026 or (ii) the next annual meeting of shareholders of the Issuer, subject to the Reporting Person's continued service as a director through the applicable vesting date.

F2 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

Read SEC document
May 10, 2024 Filed May 14, 2024 16:13 UTC Barinthus Biotherapeutics plc. BRNS · Entity 9597 GrantShare Option (Right to Buy) · Derivative 19,516 $0.00 Strike: $2.34 $0.00
Disclosure

SEC source: 0001828185-24-000048 · wk-form4_1715717606.xml · derivative · entry 1

Wright Robin · CIK 0001851640 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,516

Underlying: Ordinary Shares · 19,516 shares

Expires 2034-05-10

F1 · derivative.exercise_date: The shares underlying this option shall vest in full on the earlier of (i) May 10, 2025 or (ii) the next annual meeting of shareholders of the Issuer, subject to the Reporting Person's continued service as a director through the applicable vesting date.

F2 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

Read SEC document
May 25, 2023 Filed Jun 1, 2023 16:33 UTC Barinthus Biotherapeutics plc. VACC · Entity 9597 PurchaseOrdinary Shares 13,750 $2.66 $36,612.13
Disclosure

SEC source: 0001104659-23-067081 · tm2317604-1_4seq1.xml · nonDerivative · entry 1

Wright Robin · CIK 0001851640 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,256

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $2.48 to $2.70, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range.

Read SEC document
May 11, 2023 Filed May 12, 2023 16:07 UTC Barinthus Biotherapeutics plc. VACC · Entity 9597 GrantShare Option (Right to Buy) · Derivative 19,197 $0.00 Strike: $2.27 $0.00
Disclosure

SEC source: 0001104659-23-059729 · tm2315647-6_4seq1.xml · derivative · entry 1

Wright Robin · CIK 0001851640 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,197

Underlying: Ordinary Shares · 19,197 shares

Expires 2033-05-11

F1 · derivative.exercise_date: The shares underlying this option shall vest in full on the earlier of (i) May 11, 2024 or (ii) the next annual meeting of shareholders of the Issuer, subject to the Reporting Person's continued service as a director through the applicable vesting date.

F2 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

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June 15, 2022 Filed Feb 10, 2023 16:44 UTC Barinthus Biotherapeutics plc. VACC · Entity 9597 GrantShare Option (Right to Buy) · Derivative 18,604 $0.00 Strike: $4.27 $0.00
Disclosure

SEC source: 0001104659-23-018613 · tm236344-6_5seq1.xml · derivative · entry 1

Wright Robin · CIK 0001851640 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,604

Underlying: Ordinary Shares · 18,604 shares

Expires 2032-06-15

F1 · derivative.exercise_date: One-third of the shares underlying this option shall vest and become exercisable on June 15, 2023, with the remainder vesting in 24 equal monthly installments thereafter.

F2 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

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December 22, 2021 Filed Dec 23, 2021 16:06 UTC Barinthus Biotherapeutics plc. VACC · Entity 9597 PurchaseOrdinary Shares 10,000 $9.97 $99,700.00
Disclosure

SEC source: 0001104659-21-153100 · tm2136250-1_4seq1.xml · nonDerivative · entry 1

Wright Robin · CIK 0001851640 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,506

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

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May 04, 2021 Filed May 6, 2021 16:28 UTC Barinthus Biotherapeutics plc. VACC · Entity 9597 PurchaseOrdinary Shares 14,000 $17.00 $238,000.00
Disclosure

SEC source: 0001104659-21-062430 · tm2115262-5_4seq1.xml · nonDerivative · entry 1

Wright Robin · CIK 0001851640 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,506

F1 · security: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

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April 29, 2021 Filed May 4, 2021 20:28 UTC Barinthus Biotherapeutics plc. VACC · Entity 9597 GrantShare Option (Right to Buy) · Derivative 34,328 $0.00 Strike: $17.00 $0.00
Disclosure

SEC source: 0001104659-21-061229 · tm2114558-25_4seq1.xml · derivative · entry 1

Wright Robin · CIK 0001851640 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,328

Underlying: Ordinary Shares · 34,328 shares

Expires 2031-04-29

F2 · derivative.exercise_date: This option shall vest and become exercisable in three equal annual installments, with the first installment vesting on April 29, 2022.

F1 · derivative.underlying: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.