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SCHEDULE 13G Filed 2026-08-14 Event — SEC 0001104659-26-097419 →

ADAR1 Capital Management, LLC → Cyclerion Therapeutics, Inc. KRSA

Stake: — Shares: — 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
14 filings by this filer
13 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.

FiledFormFilerStakeShares
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 →
2026-07-20 SCHEDULE 13D/A Hecht Peter M — 910,240 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 ADAR1 Capital Management, LLC

FiledFormIssuerStakeShares
2026-09-08 SCHEDULE 13G Tenax Therapeutics, Inc. — — view →
2026-08-14 SCHEDULE 13G Rein Therapeutics, Inc. — — view →
2026-08-14 SCHEDULE 13G Yarrow Bioscience, Inc. — — view →
2026-08-14 SCHEDULE 13G NextCure, Inc. — — view →
2026-08-14 SCHEDULE 13G Editas Medicine, Inc. — — view →
2026-08-14 SCHEDULE 13G JATT II Acquisition Corp. — — view →
2026-08-14 SCHEDULE 13G Amanat Acquisition Corp. — — view →
2026-08-14 SCHEDULE 13G Boundless Bio, Inc. — — view →
2026-08-14 SCHEDULE 13G Pliant Therapeutics, Inc. — — view →
2026-08-14 SCHEDULE 13G Research Alliance Corporation III — — view →
2026-06-05 SCHEDULE 13G InMed Pharmaceuticals, Inc. INM — — view →
2026-06-05 SCHEDULE 13G Rallybio Corporation RLYB — — view →
2025-04-28 SCHEDULE Keros Therapeutics, Inc. KROS 13.29% 5,390,964 view →

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