Synairgen plc (SNG) Board of Directors | TickerDM
Executive Chairman
1 yrs 10 mosAge: 62British
JT
Joseph Tregonning Colliver
Chief Executive Officer
2 yrs 9 mosAge: 46British
MM
Martin Murphy
Non-Executive Director
–
RM
Company Director and Board member
–
SW
Simon William Holden
Secretary
5 yrs 7 mos
| Name | Role | Appointed | Tenure | Nationality |
|---|
| Executive Chairman | 10 Oct 2024 | 1 yrs 10 mos | British |
JT Joseph Tregonning Colliver | Chief Executive Officer | 6 Nov 2023 | 2 yrs 9 mos | British |
| Non-Executive Director |
Director Remuneration (FYE 2023)
| Director | Role | Base Salary | Benefits | Pension | Total |
|---|
| Richard Marsden | Executive Director | £310,000 | £2,000 | £16,000 | £328,000 |
| Dr Phillip Monk | Executive Director | £225,000 | £2,000 |
John Bradshaw
Independent Non-Executive Director and Chair of the Audit Committee
Tenure: 10 mosResigned: 31 Mar 2026
Martin Patrick Murphy
Director
Tenure: 1 yrs 2 mosResigned: 31 Mar 2026
Tenure: 20 yrs 10 mosResigned: 1 Jul 2025
Amanda Dawn Radford
Non-Executive Director
Tenure: 2 yrs 2 mosResigned: 16 Jan 2025
DM
Executive Chairman
1 yrs 10 mosAge: 62British
JT
Joseph Tregonning Colliver
Chief Executive Officer
2 yrs 9 mosAge: 46British
MM
Martin Murphy
Non-Executive Director
–
RM
Company Director and Board member
–
SW
Simon William Holden
Secretary
5 yrs 7 mos
| Name | Role | Appointed | Tenure | Nationality |
|---|
| Executive Chairman | 10 Oct 2024 | 1 yrs 10 mos | British |
JT Joseph Tregonning Colliver | Chief Executive Officer | 6 Nov 2023 | 2 yrs 9 mos | British |
| Non-Executive Director |
Director Remuneration (FYE 2023)
| Director | Role | Base Salary | Benefits | Pension | Total |
|---|
| Richard Marsden | Executive Director | £310,000 | £2,000 | £16,000 | £328,000 |
| Dr Phillip Monk | Executive Director | £225,000 | £2,000 |
John Bradshaw
Independent Non-Executive Director and Chair of the Audit Committee
Tenure: 10 mosResigned: 31 Mar 2026
Martin Patrick Murphy
Director
Tenure: 1 yrs 2 mosResigned: 31 Mar 2026
Tenure: 20 yrs 10 mosResigned: 1 Jul 2025
Amanda Dawn Radford
Non-Executive Director
Tenure: 2 yrs 2 mosResigned: 16 Jan 2025
| Company Director and Board member | – | – | – |
| Secretary | 18 Jan 2021 | 5 yrs 7 mos | – |
| John Ward | Executive Director | £203,000 | £2,000 | £10,000 | £215,000 |
| Joseph Colliver | Executive Director | £30,000 | – | £1,000 | £31,000 |
| Simon Shaw | Non-Executive Director | £80,000 | – | – | £80,000 |
| Dr Felicity Gabbay | Non-Executive Director | £45,000 | – | – | £45,000 |
| Amanda Radford | Non-Executive Director | £45,000 | – | – | £45,000 |
| Dr Bruce Campbell | Non-Executive Director | £40,000 | – | – | £40,000 |
| Prof. Sir Stephen Holgate | Non-Executive Director | £40,000 | – | – | £40,000 |
| Iain Buchanan | Non-Executive Director | – | – | – | – |
Prior year comparison (10 directors)
| Director | Role | Base Salary | Benefits | Pension | Total |
|---|
| Richard Marsden | Executive Director | £312,000 | £2,000 | £16,000 | £328,000 |
| Dr Phillip Monk | Executive Director | £227,000 | £2,000 | £13,000 | £240,000 |
| John Ward | Executive Director | £228,000 | £2,000 | £12,000 | £240,000 |
| Joseph Colliver | Executive Director | – | – | – | – |
| Simon Shaw | Non-Executive Director | £84,000 | – | – | £84,000 |
| Iain Buchanan | Non-Executive Director | £45,000 | – | – | £45,000 |
| Dr Bruce Campbell | Non-Executive Director | £44,000 | – | – | £44,000 |
| Prof. Sir Stephen Holgate | Non-Executive Director | £44,000 | – | – | £44,000 |
| Dr Felicity Gabbay | Non-Executive Director | £11,000 | – | – | £11,000 |
| Amanda Radford | Non-Executive Director | £4,000 | – | – | £4,000 |
Dr Felicity Jane Gabbay
Non-Executive Director
Tenure: 2 yrs 4 mosResigned: 16 Jan 2025
Dr David Bruce Campbell
Non-Executive Director
Tenure: 18 yrs 9 mosResigned: 16 Jan 2025
Professor Stephen Townley Holgate
Non-Executive Director
Tenure: 20 yrs 4 mosResigned: 16 Jan 2025
Simon James Blouet Shaw
Non-Executive Director
Tenure: 20 yrs 1 mosResigned: 11 Oct 2024
Dr Phillip David Monk
Executive Director
Tenure: 15 yrsResigned: 6 Sept 2024
John Christopher William Ward
Executive Director
Tenure: 19 yrs 1 mosResigned: 3 Nov 2023
Iain Peter Murray Buchanan
Non-Executive Director
Tenure: 12 yrs 5 mosResigned: 30 Nov 2022
Tenure: 1 yrsResigned: 29 Sept 2022
Paul Hugh Anthony Clegg
Non-Executive Director
Tenure: 9 yrs 9 mosResigned: 3 Jun 2019
Susan Margaret Sundstrom
Non-Executive Director
Tenure: 5 yrsResigned: 3 Sept 2009
David Robert Norwood
Non-Executive Director
Tenure: 1 yrs 7 mosResigned: 11 Apr 2006
John Reginald Brooks
Secretary
Tenure: 1 mosResigned: 11 Oct 2004
| Name | Role | Appointed | Resigned | Tenure | Nationality |
|---|
| John Bradshaw | Independent Non-Executive Director and Chair of the Audit Committee | 1 May 2025 | 31 Mar 2026 | 10 mos | British |
| Martin Patrick Murphy | Director | 16 Jan 2025 | 31 Mar 2026 | 1 yrs 2 mos | British |
| Richard James Marsden | Executive Director | 16 Sept 2004 | 1 Jul 2025 | 20 yrs 10 mos | British |
| Amanda Dawn Radford | Non-Executive Director | 30 Nov 2022 | 16 Jan 2025 | 2 yrs 2 mos | British |
| Dr Felicity Jane Gabbay | Non-Executive Director |
| Company Director and Board member | – | – | – |
| Secretary | 18 Jan 2021 | 5 yrs 7 mos | – |
| John Ward | Executive Director | £203,000 | £2,000 | £10,000 | £215,000 |
| Joseph Colliver | Executive Director | £30,000 | – | £1,000 | £31,000 |
| Simon Shaw | Non-Executive Director | £80,000 | – | – | £80,000 |
| Dr Felicity Gabbay | Non-Executive Director | £45,000 | – | – | £45,000 |
| Amanda Radford | Non-Executive Director | £45,000 | – | – | £45,000 |
| Dr Bruce Campbell | Non-Executive Director | £40,000 | – | – | £40,000 |
| Prof. Sir Stephen Holgate | Non-Executive Director | £40,000 | – | – | £40,000 |
| Iain Buchanan | Non-Executive Director | – | – | – | – |
Prior year comparison (10 directors)
| Director | Role | Base Salary | Benefits | Pension | Total |
|---|
| Richard Marsden | Executive Director | £312,000 | £2,000 | £16,000 | £328,000 |
| Dr Phillip Monk | Executive Director | £227,000 | £2,000 | £13,000 | £240,000 |
| John Ward | Executive Director | £228,000 | £2,000 | £12,000 | £240,000 |
| Joseph Colliver | Executive Director | – | – | – | – |
| Simon Shaw | Non-Executive Director | £84,000 | – | – | £84,000 |
| Iain Buchanan | Non-Executive Director | £45,000 | – | – | £45,000 |
| Dr Bruce Campbell | Non-Executive Director | £44,000 | – | – | £44,000 |
| Prof. Sir Stephen Holgate | Non-Executive Director | £44,000 | – | – | £44,000 |
| Dr Felicity Gabbay | Non-Executive Director | £11,000 | – | – | £11,000 |
| Amanda Radford | Non-Executive Director | £4,000 | – | – | £4,000 |
Dr Felicity Jane Gabbay
Non-Executive Director
Tenure: 2 yrs 4 mosResigned: 16 Jan 2025
Dr David Bruce Campbell
Non-Executive Director
Tenure: 18 yrs 9 mosResigned: 16 Jan 2025
Professor Stephen Townley Holgate
Non-Executive Director
Tenure: 20 yrs 4 mosResigned: 16 Jan 2025
Simon James Blouet Shaw
Non-Executive Director
Tenure: 20 yrs 1 mosResigned: 11 Oct 2024
Dr Phillip David Monk
Executive Director
Tenure: 15 yrsResigned: 6 Sept 2024
John Christopher William Ward
Executive Director
Tenure: 19 yrs 1 mosResigned: 3 Nov 2023
Iain Peter Murray Buchanan
Non-Executive Director
Tenure: 12 yrs 5 mosResigned: 30 Nov 2022
Tenure: 1 yrsResigned: 29 Sept 2022
Paul Hugh Anthony Clegg
Non-Executive Director
Tenure: 9 yrs 9 mosResigned: 3 Jun 2019
Susan Margaret Sundstrom
Non-Executive Director
Tenure: 5 yrsResigned: 3 Sept 2009
David Robert Norwood
Non-Executive Director
Tenure: 1 yrs 7 mosResigned: 11 Apr 2006
John Reginald Brooks
Secretary
Tenure: 1 mosResigned: 11 Oct 2004
| Name | Role | Appointed | Resigned | Tenure | Nationality |
|---|
| John Bradshaw | Independent Non-Executive Director and Chair of the Audit Committee | 1 May 2025 | 31 Mar 2026 | 10 mos | British |
| Martin Patrick Murphy | Director | 16 Jan 2025 | 31 Mar 2026 | 1 yrs 2 mos | British |
| Richard James Marsden | Executive Director | 16 Sept 2004 | 1 Jul 2025 | 20 yrs 10 mos | British |
| Amanda Dawn Radford | Non-Executive Director | 30 Nov 2022 | 16 Jan 2025 | 2 yrs 2 mos | British |
| Dr Felicity Jane Gabbay | Non-Executive Director |
| Dr David Bruce Campbell | Non-Executive Director | 11 Apr 2006 | 16 Jan 2025 | 18 yrs 9 mos | British |
| Professor Stephen Townley Holgate | Non-Executive Director | 16 Sept 2004 | 16 Jan 2025 | 20 yrs 4 mos | British |
| Simon James Blouet Shaw | Non-Executive Director | 16 Sept 2004 | 11 Oct 2024 | 20 yrs 1 mos | British |
| Dr Phillip David Monk | Executive Director | 3 Sept 2009 | 6 Sept 2024 | 15 yrs | British |
| John Christopher William Ward | Executive Director | 11 Oct 2004 | 3 Nov 2023 | 19 yrs 1 mos | British |
| Iain Peter Murray Buchanan | Non-Executive Director | 28 Jun 2010 | 30 Nov 2022 | 12 yrs 5 mos | British |
| Theodora Harold | Director | 30 Sept 2021 | 29 Sept 2022 | 1 yrs | British |
| Paul Hugh Anthony Clegg | Non-Executive Director | 3 Sept 2009 | 3 Jun 2019 | 9 yrs 9 mos | British |
| Susan Margaret Sundstrom | Non-Executive Director | 16 Sept 2004 | 3 Sept 2009 | 5 yrs | Manager |
| David Robert Norwood | Non-Executive Director | 16 Sept 2004 | 11 Apr 2006 | 1 yrs 7 mos | British |
| John Reginald Brooks | Secretary | 16 Sept 2004 | 11 Oct 2004 | 1 mos | British |
| Dr David Bruce Campbell | Non-Executive Director | 11 Apr 2006 | 16 Jan 2025 | 18 yrs 9 mos | British |
| Professor Stephen Townley Holgate | Non-Executive Director | 16 Sept 2004 | 16 Jan 2025 | 20 yrs 4 mos | British |
| Simon James Blouet Shaw | Non-Executive Director | 16 Sept 2004 | 11 Oct 2024 | 20 yrs 1 mos | British |
| Dr Phillip David Monk | Executive Director | 3 Sept 2009 | 6 Sept 2024 | 15 yrs | British |
| John Christopher William Ward | Executive Director | 11 Oct 2004 | 3 Nov 2023 | 19 yrs 1 mos | British |
| Iain Peter Murray Buchanan | Non-Executive Director | 28 Jun 2010 | 30 Nov 2022 | 12 yrs 5 mos | British |
| Theodora Harold | Director | 30 Sept 2021 | 29 Sept 2022 | 1 yrs | British |
| Paul Hugh Anthony Clegg | Non-Executive Director | 3 Sept 2009 | 3 Jun 2019 | 9 yrs 9 mos | British |
| Susan Margaret Sundstrom | Non-Executive Director | 16 Sept 2004 | 3 Sept 2009 | 5 yrs | Manager |
| David Robert Norwood | Non-Executive Director | 16 Sept 2004 | 11 Apr 2006 | 1 yrs 7 mos | British |
| John Reginald Brooks | Secretary | 16 Sept 2004 | 11 Oct 2004 | 1 mos | British |
