MT

MESTAG THERAPEUTICS LTD

Active

Company number 12466144

Saffron Walden, England · Incorporated 17 February 2020

Suites 15 & 16, Science Village Chesterford Research Park, Little Chesterford, Saffron Walden, CB10 1XL, England

Last updated on 19 August 2026

Research and experimental development on biotechnology · SIC 72110

Status
Active
Company age
6 years
Company type
Private limited
Accounts
Up to date
Total raised
—
Shares allotted
0
Latest round
12 March 2026

Company history

Previous company names

BIOTECH 3 LTD · 17 February 2020 – 27 March 2020

Company overview

MESTAG THERAPEUTICS LTD is an active private limited company incorporated on 17 February 2020 and registered in England and Wales. The company operates from Suites 15 & 16, Science Village, Chesterford Research Park, Little Chesterford, Saffron Walden CB10 1XL. Its principal activity is research and experimental development on biotechnology (SIC 72110).

The company is currently in good standing with no charges and no history of insolvency. Its most recent accounts, filed as small company accounts made up to 31 December 2025, are not overdue, with the next accounts due by 30 September 2027. The latest confirmation statement was made up to 15 February 2026 and is not overdue.

The board consists of three British directors: Dr Susan Hill (appointed 17 April 2020), Dr Andrew Neil Charles Weir (appointed 3 June 2020), and Dr Fiona Caroline MacLaughlin (appointed 28 January 2021), all resident in England. Johnson & Johnson holds significant control with ownership of 25 to 50 percent of the shares, notified on 14 October 2024.

Recent filings include a share allotment on 1 June 2026 and a miscellaneous legacy filing on 19 June 2026.

Compliance

Annual accounts Up to date
Last filed
31 December 2025
Next due
30 September 2027
13 months left
Confirmation statement Up to date
Last filed
15 February 2026
Next due
1 March 2027
6 months left

Financial snapshot

Last accounts type
Small
Period end
31 December 2025

Detailed figures (assets, liabilities, net worth) are available in the full credit report.

Officers

No officers on record.

Persons with significant control

PS
Johnson & Johnson
Ownership Of Shares 25 To 50 Percent
14 October 2024

Funding

18 funding rounds
12 March 2026
Shares allotted · 0 shares allotted
—
16 February 2026
Shares allotted · 0 shares allotted
—
22 December 2025
Shares allotted · 0 shares allotted
—
31 October 2025
Shares allotted · 0 shares allotted
—
24 September 2025
Shares allotted · 0 shares allotted
—
28 April 2025
Shares allotted · 0 shares allotted
—
6 January 2025
Shares allotted · 0 shares allotted
—
23 December 2024
Shares allotted · 0 shares allotted
—
14 October 2024
Shares allotted · 0 shares allotted
—
12 June 2024
Shares allotted · 0 shares allotted
—
22 November 2023
Shares allotted · 0 shares allotted
—
31 July 2023
Shares allotted · 0 shares allotted
—
7 July 2023
Shares allotted · 0 shares allotted
—
16 July 2021
Shares allotted · 0 shares allotted
—
21 April 2021
Shares allotted · 0 shares allotted
—
4 February 2021
Shares allotted · 0 shares allotted
—
30 March 2020
Shares allotted · 0 shares allotted
—
—
Shares allotted · 0 shares allotted
—
Total (18 rounds, 0 shares)
—

Filing history

Legacy
Miscellaneous
19 June 2026 View
Capital Allotment Shares
Capital
1 June 2026 View
Accounts With Accounts Type Small
Accounts
11 May 2026 View
Replacement Filing Of Director Appointment With Name
Officers
24 March 2026 View
Confirmation Statement With Updates
Confirmation Statement
19 March 2026 View
Replacement Filing Of Director Appointment With Name
Officers
17 March 2026 View
Capital Allotment Shares
Capital
17 February 2026 View
Capital Allotment Shares
Capital
7 January 2026 View
Capital Allotment Shares
Capital
3 November 2025 View
Capital Allotment Shares
Capital
24 September 2025 View
Termination Director Company With Name Termination Date
Officers
3 June 2025 View
Appoint Person Director Company With Name Date
Officers
3 June 2025 View
Capital Return Purchase Own Shares
Capital
22 May 2025 View
Capital Cancellation Shares
Capital
22 May 2025 View
Capital Name Of Class Of Shares
Capital
22 May 2025 View
Accounts With Accounts Type Small
Accounts
8 May 2025 View
Capital Allotment Shares
Capital
29 April 2025 View
Confirmation Statement With Updates
Confirmation Statement
24 February 2025 View
Capital Allotment Shares
Capital
9 January 2025 View
Capital Allotment Shares
Capital
2 January 2025 View
Accounts With Accounts Type Small
Accounts
23 October 2024 View
Withdrawal Of A Person With Significant Control Statement
Persons With Significant Control
23 October 2024 View
Notification Of A Person With Significant Control
Persons With Significant Control
23 October 2024 View
Capital Allotment Shares
Capital
17 October 2024 View
Resolution
Resolution
22 June 2024 View
Capital Allotment Shares
Capital
19 June 2024 View
Appoint Person Director Company With Name Date
Officers
11 March 2024 View
Termination Director Company With Name Termination Date
Officers
11 March 2024 View
Confirmation Statement With Updates
Confirmation Statement
21 February 2024 View
Capital Allotment Shares
Capital
18 December 2023 View
Capital Allotment Shares
Capital
29 November 2023 View
Second Filing Capital Allotment Shares
Capital
11 August 2023 View
Capital Allotment Shares
Capital
20 July 2023 View
Appoint Person Director Company With Name Date
Officers
6 July 2023 View
Termination Director Company With Name Termination Date
Officers
6 July 2023 View
Resolution
Resolution
14 June 2023 View
Accounts With Accounts Type Small
Accounts
3 May 2023 View
Confirmation Statement With Updates
Confirmation Statement
21 February 2023 View
Appoint Person Director Company With Name Date
Officers
6 January 2023 View
Termination Director Company With Name Termination Date
Officers
6 January 2023 View
Mortgage Satisfy Charge Full
Mortgage
14 July 2022 View
Accounts With Accounts Type Small
Accounts
24 June 2022 View
Mortgage Satisfy Charge Full
Mortgage
15 June 2022 View
Confirmation Statement With Updates
Confirmation Statement
1 March 2022 View
Appoint Person Director Company With Name Date
Officers
17 February 2022 View
Accounts With Accounts Type Small
Accounts
5 October 2021 View
Capital Allotment Shares
Capital
27 August 2021 View
Memorandum Articles
Incorporation
4 August 2021 View
Resolution
Resolution
4 August 2021 View
Appoint Person Director Company With Name Date
Officers
21 July 2021 View
Appoint Person Director Company With Name Date
Officers
21 July 2021 View
Appoint Person Director Company With Name Date
Officers
21 July 2021 View
Notification Of A Person With Significant Control Statement
Persons With Significant Control
21 July 2021 View
Cessation Of A Person With Significant Control
Persons With Significant Control
21 July 2021 View
Termination Director Company With Name Termination Date
Officers
28 June 2021 View
Change Registered Office Address Company With Date Old Address New Address
Address
11 May 2021 View
Mortgage Create With Deed With Charge Number Charge Creation Date
Mortgage
4 May 2021 View
Capital Allotment Shares
Capital
26 April 2021 View
Confirmation Statement With Updates
Confirmation Statement
30 March 2021 View
Capital Allotment Shares
Capital
30 March 2021 View
Mortgage Create With Deed With Charge Number Charge Creation Date
Mortgage
26 March 2021 View
Memorandum Articles
Incorporation
16 March 2021 View
Resolution
Resolution
16 March 2021 View
Appoint Person Director Company With Name Date
Officers
1 February 2021 View
Resolution
Resolution
4 December 2020 View
Capital Allotment Shares
Capital
12 November 2020 View
Appoint Person Director Company With Name Date
Officers
22 July 2020 View
Appoint Person Director Company With Name Date
Officers
21 July 2020 View
Termination Director Company With Name Termination Date
Officers
1 May 2020 View
Termination Director Company With Name Termination Date
Officers
1 May 2020 View
Appoint Person Director Company With Name Date
Officers
1 May 2020 View
Appoint Person Director Company With Name Date
Officers
1 May 2020 View
Appoint Person Director Company With Name Date
Officers
1 May 2020 View
Resolution
Resolution
27 March 2020 View
Change Account Reference Date Company Current Shortened
Accounts
24 March 2020 View
Incorporation Company
Incorporation
17 February 2020 View

Risk at a glance

  • Company active
  • Accounts up to date
  • Confirmation statement up to date
  • No insolvency history
  • No registered charges
  • Credit score
  • Recommended limit
  • Payment risk

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