SCHEDULE 13D/A Filed 2026-07-20 Event 2026-07-16 SEC 0001193125-26-309245 →

Hecht Peter M → CYCLERION THERAPEUTICS, INC. KRSA

Stake: — Shares: 910,240 Class: Common Stock, no par value

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)

0 transactions

0 buys · 0 sales · 0 awards/exercises

Issuer Cluster

11 13D/G filings on this issuer

10 other filings besides this one

Filer Track Record

6 filings by this filer

5 other filings in the data moat

Short Interest · settle 2026-09-30

DTC 1.00

11,552 shares short · +160.1% vs prior

Other 13D/G Filings on CYCLERION THERAPEUTICS, INC.

Filed	Form	Filer	Stake	Shares
2026-09-18	SCHEDULE 13G	GENERAL ATLANTIC, L.P.	—	—	view →
2026-09-16	SCHEDULE 13G	Wellington Biomedical Innovation Master Investors (Cayman) II L.P.	—	—	view →
2026-09-15	SCHEDULE 13D	Venrock Healthcare Capital Partners III, L.P.	9.90%	4,552,277	view →
2026-09-11	SCHEDULE 13D	Fairmount Funds Management LLC	19.99%	9,103,729	view →
2026-08-14	SCHEDULE 13G	ADAR1 Capital Management, LLC	—	—	view →
2023-05-23	SC	Hecht Peter M	—	—	view →
2023-05-12	SC	Hecht Peter M	—	—	view →
2023-04-03	SC	Hecht Peter M	—	—	view →
2022-11-21	SC	Hecht Peter M	—	—	view →
2021-06-07	SC	Hecht Peter M	—	—	view →

Other Filings by Hecht Peter M

Filed	Form	Issuer	Stake	Shares
2023-05-23	SC	Cyclerion Therapeutics, Inc. CYCN	—	—	view →
2023-05-12	SC	Cyclerion Therapeutics, Inc. CYCN	—	—	view →
2023-04-03	SC	Cyclerion Therapeutics, Inc. CYCN	—	—	view →
2022-11-21	SC	Cyclerion Therapeutics, Inc. CYCN	—	—	view →
2021-06-07	SC	Cyclerion Therapeutics, Inc. CYCN	—	—	view →

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