Filing status
- Accounts due
- 30 September 2027
- Last accounts
- 31 December 2025
- Conf. stmt due
- 12 August 2027
- Last conf. stmt
- 29 July 2026
Mosaic Therapeutics Limited
- Incorporated
- 30 July 2020 (6 years)
- Industry
- Research and experimental development on biotechnology (72110)
- Directors
- Allison JeynesThomas FuchsLaurence Edward Reid
- Owned by
- Syncona Limited
- Accounts type
- Group
- Region
- Greater London
- Address
- Victoria HouseSouthampton RowLondonWC1B 4DA
Officers 5 active
Officer details are public data from the Companies House register.
Jeynes, Allison, Dr.
Director · Appointed 1 August 2026
British
Born October 1965 (61)
Fuchs, Thomas
Director · Appointed 31 October 2025
American
Born January 1970 (56)
Reid, Laurence Edward, Dr
Director · Appointed 25 September 2024
British
Born May 1963 (63)
Director · Appointed 31 October 2023
British
Born August 1963 (63)
Garnett, Mathew James, Dr
Director · Appointed 15 October 2022
British
Born April 1976 (50)
Officer history (13 former)
31 October 2026
1 August 2026
Appointed Jeynes, Allison, Dr. as Director
21 May 2026
13 May 2026
31 October 2025
Appointed Fuchs, Thomas as Director
25 September 2024
Appointed Reid, Laurence Edward, Dr as Director
6 August 2024
Resigned Horgan, Viet-Anh Anne, Dr as Director
6 August 2024
Resigned Bennett, Sally Louise, Dr as Director
14 May 2024
Resigned Tsai, John, Dr as Director
12 February 2024
Resigned Gladsden, Brian Scott as Director
31 October 2023
31 October 2023
3 October 2023
Appointed Tsai, John, Dr as Director
1 June 2023
1 June 2023
Appointed Gladsden, Brian Scott as Director
15 October 2022
15 October 2022
Appointed Bennett, Sally Louise, Dr as Director
15 October 2022
15 October 2022
Appointed Horgan, Viet-Anh Anne, Dr as Director
15 October 2022
15 October 2022
Appointed Garnett, Mathew James, Dr as Director
15 October 2022
15 October 2022
Resigned Stedman-Lloyd, Carys as Secretary
15 October 2022
21 March 2022
Appointed Stedman-Lloyd, Carys as Secretary
21 March 2022
Resigned Richards, Lise Erica as Secretary
10 November 2021
15 October 2021
17 May 2021
30 July 2020
Appointed Richards, Lise Erica as Secretary
30 July 2020
Ownership 1 active
People and entities with significant control, from the Companies House PSC register
Syncona Limited
Corporate entity · Notified 17 October 2022
Owns 50–75% of shares
Holds 50–75% of voting rights
Company Limited By Shares
Reg. no. 55514
Former controllers (1)
17 October 2022
Ceased Genome Research Limited — Owns 75–100% of shares
Financials
Figures from 2020 accounts. Newer accounts, made up to 31 December 2025, are filed but not read yet. See them on Companies House
- Net Assets
- £1
Balance sheet detail
| 2020 | |
|---|---|
| Net Assets | £1 |
| Shareholder Funds | £1 |
Filings
Recent filings only. See the full history on Companies House
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 31 October 2026 | Termination of appointment of a director | |||
| 11 September 2026 | Change of share class name or designation | |||
| 11 September 2026 | Particulars of variation of rights attached to shares | |||
| 4 September 2026 | Group of companies' accounts | 31 December 2025 | ||
| 4 September 2026 | Statement of capital following an allotment of shares |
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