Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under Cyclerion Therapeutics, Inc. in our court records and SEC 8-K records (as of 2026-10-18).
- Leadership changes: the latest reported is Jonathan Violin, Chief Executive Officer (Form 8-K filed 2026-09-11). Check you are dealing with the people now in charge.
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Fmr LLC (filed 2026-10-07).
Who is behind it
Korsana Biosciences, Inc.: incorporated in Massachusetts; business address in Waltham, Massachusetts; industry Pharmaceutical Preparations (Schedule 13G/A, 2026-10-15).
Officers and directors, each with the role and the filing that names them:
- Peter M. Hecht: Director, Executive Officer (Form D, 2023-05-25)
- Anjeza Gjino: Executive Officer (Form D, 2023-05-25)
- Cheryl Gault: Executive Officer (Form D, 2023-05-25)
- Errol De Souza: Director (Form D, 2023-05-25)
- Steven Hyman: Director (Form D, 2023-05-25)
- Ole Isacson: Director (Form D, 2023-05-25)
- Terrance McGuire: Director (Form D, 2023-05-25)
| Report | Holder | Share |
|---|---|---|
| Schedule 13G/A, 2026-10-15 | J. Wood Capital Advisors LLC | 0.1% |
| Schedule 13G/A, 2026-10-07 | Fmr LLC | 6.9% |
| Schedule 13G, 2026-09-18 | General Atlantic, L.P. | 6.8% |
| Schedule 13G, 2026-09-16 | Wellington Biomedical Innovation Master Investors (Cayman) Ii, L.P. | 6.1% |
| Schedule 13D, 2026-09-15 | Venrock Healthcare Capital Partners Iii, L.P. | 9.9% |
| Schedule 13D, 2026-09-11 | Fairmount Funds Management LLC | 19.99% |
| Schedule 13G, 2026-08-14 | Adar1 Capital Management, LLC | 7% |
| Schedule 13G, 2026-08-14 | Balyasny Asset Management L.P. | 7.33% |
| Filed | Person | Role | Change | Effective |
|---|---|---|---|---|
| Form 8-K, 2026-09-11 | Jonathan Violin | Chief Executive Officer | appointed |
Money raised
| Filed | Sold | Offered |
|---|---|---|
| Form D, 2023-05-25 | $5M | $5M |
Acquisitions reported on Form 8-K, Item 2.01: completed an acquisition (2026-09-11).
Related pages
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Cite this page
Permanent URL:
https://mentionfox.com/who-owns/korsana-biosciencesLast updated 2026-10-18
Who owns Korsana Biosciences, Inc.? Owners, funding and legal record. MentionFox, 2026-10-18. https://mentionfox.com/who-owns/korsana-biosciences