Cyclerion Therapeutics
Holds a suspended depression-treatment system and out-licensed sGC development rights.
$3.79
After-hours close+0.04 (+1.07%)
At close$3.75(−6.02%)
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Breakdown13F · Form 4
Institutions 3.46%161.9K sharesInsiders 22.93%1.07M sharesOther 73.61%3.45M shares
Shares outstanding 4.68M · Float 3.14M · 67.1% free float
Institutions13F, as of Mar 31, 2026
17 holders · 161.9K shares · 5 new positions · 7 increased · 1 reduced · 7 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Geode Capital Management, LLC | 84.6K | 1.81% | +41.2K | May 15, 2026 |
| Citadel Advisors LLC | 18.3K | 0.39% | +18.3Knew | May 15, 2026 |
| BlackRock, Inc. | 16.8K | 0.36% | 0 | May 13, 2026 |
| Vanguard Capital Management LLC | 16.1K | 0.34% | +16.1Knew | May 15, 2026 |
| Kovack Advisors, Inc. | 10.0K | 0.21% | +10.0Knew | May 13, 2026 |
| Vanguard Fiduciary Trust Co | 7.4K | 0.16% | +7.4Knew | May 8, 2026 |
| FMR LLC | 4.7K | 0.10% | 0 | May 15, 2026 |
| UBS Group AG | 3.4K | 0.07% | +3.0K | May 5, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Peter M. Hecht | 19.40% | 910.2K | 13D | Jul 20, 2026 ↗ |
| FMR LLC | 15.00% | 649.5K | 13G | May 7, 2026 ↗ |
| Balyasny Asset Management L.P. | 7.33% | 317.5K | 13G | Aug 14, 2026 ↗ |
| ADAR1 Capital Management, LLC | 7.00% | 298.8K | 13G | Aug 14, 2026 ↗ |
| J. Wood Capital Advisors LLC | 5.40% | 181.8K | 13G | Oct 17, 2025 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Peter M. Hecht | director, 10 percent owner: | 910.2K | 19.44% | Jul 20, 2026 |
| Regina Margaret Graul | director, officer: See Remarks | 107.5K | 2.30% | Aug 18, 2026 |
| Michael J. Higgins | director | 30.7K | 0.66% | Mar 27, 2025 |
| Rhonda M. Chicko | officer: Chief Financial Officer | 25.0K | 0.53% | Aug 18, 2026 |
17 people have not refiled in the last 18 months (110.9K shares), so they are not in the figure above
Latest trades
No open-market trades in the last 12 months.
CongressHouse and Senate disclosures
Not reported.