United Kingdom · 
Who invested in CoSyne Therapeutics?
CoSyne Therapeutics's investors include Backed VC.
20222023202420252026
$999KRound$7.8MPre-seed$4.1MSeed$11MSeed
United Kingdom · Seed startup
Who invested in CoSyne Therapeutics
4 rounds we have observed, with the one investor named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
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Raised 3 months ago
Funding summaryUpdated 27 Oct 2026
$24Mraised across 4 rounds since 2021, from 4 sources
$999KRound$7.8MPre-seed$4.1MSeed$11MSeed
- Latest round
- Seed, $11MJul 2026
- Step-upi
- 2.6×
- Investors
- 1
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Round, $999K Sept 2021
- Biggest round
- $11M Seed · Jul 2026
- Usual gap between rounds
- 2 years the median of 3
The rounds
- Jul 2026Seed$11M
No investor was named in the report.
Shares issued, filed with Companies House (SH01); no report of this raise yet
- Aug 2024Seed$4.1M
No investor was named in the report.
Shares issued, filed with Companies House (SH01); no report of this raise yet
- May 2022
- Sept 2021Round$999K
No investor was named in the report.
Shares issued, filed with Companies House (SH01); no report of this raise yet
Funding filed with regulators
CoSyne Therapeutics filed 4 raises, $24M in all. Filings say how much was sold and to how many investors; they never name the investors.
- Jul 2026$11MUK share allotment
- Aug 2024$4.1MUK share allotment
- May 2022$7.8MUK share allotment
- Sept 2021$999KUK share allotment
Founders and team
From CoSyne Therapeutics's own website: 3 founders, 7 on the team.
Louwai MuhammedCEO & Co-Founder
Michael JohnsonCMO & Co-Founder
Liisi LaanisteCSO & Co-Founder
- Sophie MathiesenOperations Coordinator
- Dorota PregowskaAssociate Experimental Biologist
- Gillian CannonBoard Member
- Gui RibeiroSenior Software Engineer
- Joachim LuginbuehlDirector of Experimental Biology
- Lauren GouldAssociate Experimental Biologist
- Robert ElliotBoard Member
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Quick answers about CoSyne Therapeutics
How much has CoSyne Therapeutics raised?
CoSyne Therapeutics has raised $24M across 4 rounds since 2021.
When did CoSyne Therapeutics last raise?
CoSyne Therapeutics's most recent round was a Seed of $11M in Jul 2026.
What was CoSyne Therapeutics's biggest round?
Its most recent round, $11M in Jul 2026, is also its largest on record.
Who backed CoSyne Therapeutics first?
CoSyne Therapeutics's first round on record, in May 2022, was backed by Backed VC.
What stage is CoSyne Therapeutics at?
CoSyne Therapeutics's latest named round is a Seed, in Jul 2026.
Where is CoSyne Therapeutics based?
CoSyne Therapeutics is based in the United Kingdom.
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