Cyclerion Therapeutics (CYCN)
Holds a suspended depression-treatment system and out-licensed sGC development rights.
$23.52
vs last close0.00 (0.00%)
Something off on this page? Send us feedback.
13F · 13D/G · Form 4
| Institutions | 70.46% | 471.2K shares | |
|---|---|---|---|
| 21 holders · as of Jun 30, 2026 | |||
| Insiders | 22.93% | 153.4K shares | |
| 4 holders · as of Aug 18, 2026 | |||
| Other | 6.61% | 44.2K shares | |
| remainder | |||
668.8K company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
13F, as of Jun 30, 2026
21 holders · 3.30M shares · 9 new positions · 12 increased · 3 reduced · 5 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Kalehua Capital Management LLC | 1.65M | 246.93% | +1.65Mnew | Aug 19, 2026 |
| FMR LLC | 649.5K | 97.13% | +644.8K | Aug 13, 2026 |
| Balyasny Asset Management L.P. | 317.5K | 47.48% | +317.5Knew | Aug 14, 2026 |
| Adar1 Capital Management, LLC | 298.8K | 44.67% | +298.8Knew | Aug 14, 2026 |
| Braidwell LP | 156.9K | 23.46% | +156.9Knew | Aug 14, 2026 |
| Citadel Advisors LLC | 59.8K | 8.94% | +41.5K | Sep 2, 2026 |
| Geode Capital Management, LLC | 45.9K | 6.86% | −38.7K | Aug 12, 2026 |
| Vanguard Capital Management LLC | 30.9K | 4.62% | +14.8K | Aug 13, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Tomas Kiselakincl. Fairmount Healthcare Fund II L.P., Peter Evan Harwin +2 more | 19.99% | 13D | Sep 11, 2026 | |
| Peter M. Hecht | 19.40% | 13D | Jul 20, 2026 | |
| FMR LLC | 15.00% | 13G | May 7, 2026 | |
| VHCP Management III, LLCincl. Bong Y. Koh, Nimish Shah +6 more | 9.90% | 13D | Sep 15, 2026 | |
| Balyasny Asset Management L.P. | 7.33% | 13G | Aug 14, 2026 | |
| ADAR1 Capital Management, LLC | 7.00% | 13G | Aug 14, 2026 | |
| General Atlantic, L.P. | 6.80% | 13G | Sep 18, 2026 | |
| Wellington Biomedical Innovation Master Investors (Cayman) II, L.P. | 6.10% | 13G | Sep 16, 2026 | |
| J. Wood Capital Advisors LLC | 5.40% | 13G | Oct 17, 2025 |
Form 4
Latest trades
No open-market trades in the last 12 months.
House and Senate disclosures
Not reported.