CYCN
Cyclerion Therapeutics, Inc.
NASDAQ · Healthcare · Biotechnology · US
$23.52
+0.00%0
Insider buys (3m)
0
Insider sells (3m)
$0.00
Net value (3m)
+42.0%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Aug 18, 2026 | Graul Regina Margaret · director, officer: See Remarks | F-InKind | 48,629 | $3.79 |
| Aug 18, 2026 | CHICKO RHONDA M. · officer: Chief Financial Officer | M-Exempt | 25,000 | $2.35 |
| Aug 18, 2026 | Graul Regina Margaret · director, officer: See Remarks | M-Exempt | 55,849 | $3.30 |
| Aug 11, 2025 | CHICKO RHONDA M. · officer: Chief Financial Officer | A-Award | 25,000 | $2.35 |
| Mar 27, 2025 | Hecht Peter M · director, 10 percent owner: | A-Award | 181,818 | $2.75 |
| Mar 27, 2025 | Higgins Michael J · director | A-Award | 9,090 | $2.75 |
| Nov 25, 2024 | Slate Path Capital LP · 10 percent owner | Sale | 357,880 | $1.55 |
| Aug 7, 2024 | Graul Regina Margaret · director, officer: See Remarks | A-Award | 55,849 | $3.30 |
| Jan 26, 2024 | Graul Regina Margaret · officer: President | A-Award | 50,000 | $0.00 |
| Jan 26, 2024 | Hecht Peter M · director, 10 percent owner: | A-Award | 15,000 | $0.00 |
| Dec 4, 2023 | MCGUIRE TERRANCE · director | A-Award | 5,000 | $0.00 |
| Dec 4, 2023 | DESOUZA ERROL B · director | A-Award | 30,000 | $0.00 |
| Dec 4, 2023 | Hyman Steven · director | A-Award | 20,000 | $0.00 |
| Dec 4, 2023 | Hecht Peter M · director, 10 percent owner: | A-Award | 20,000 | $0.00 |
| Dec 4, 2023 | Hecht Peter M · director, 10 percent owner: | A-Award | 15,000 | $0.00 |
| Dec 4, 2023 | DESOUZA ERROL B · director | A-Award | 20,000 | $0.00 |
| Aug 11, 2023 | MCGUIRE TERRANCE · director | Sale | 8 | $3.40 |
| May 22, 2023 | Hecht Peter M · director, 10 percent owner, officer: Chief Executive Officer | A-Award | 225,000 | $8.68 |
| May 22, 2023 | Hecht Peter M · director, 10 percent owner, officer: Chief Executive Officer | A-Award | 351,037 | $0.00 |
| Jul 27, 2022 | Hyman Steven · director | A-Award | 57,753 | $0.78 |
| Jul 26, 2022 | Hyman Steven · director: | A-Award | 57,753 | $0.00 |
| Jun 16, 2022 | Fanucci Marsha · director: | A-Award | 20,000 | $0.00 |
| Jun 16, 2022 | Lovell Stephanie · director | A-Award | 20,000 | $0.53 |
| Jun 16, 2022 | CONRADES GEORGE H · director | A-Award | 20,000 | $0.53 |
| Jun 16, 2022 | Isacson Ole · director | A-Award | 20,000 | $0.53 |
| Jun 16, 2022 | DESOUZA ERROL B · director | A-Award | 20,000 | $0.53 |
| Jun 16, 2022 | Mendelsohn Michael · director: | A-Award | 20,000 | $0.00 |
| Jun 16, 2022 | MCGUIRE TERRANCE · director | A-Award | 20,000 | $0.53 |
| Jan 24, 2022 | Hecht Peter M · director, officer: Chief Executive Officer | A-Award | 52,950 | $1.78 |
| Jan 24, 2022 | Gault Cheryl · officer: Chief Operating Officer | A-Award | 135,000 | $1.21 |
Institutional positioning
13F filings over the trailing two quarters
New 14Increased 5Reduced 5Sold out 5
| Filer | Action | Shares | Filed |
|---|---|---|---|
| Kalehua Capital Management LLC | New Position | 1,651,350 | Aug 19, 2026 |
| FMR LLC | Increased | 649,547 | Aug 13, 2026 |
| BALYASNY ASSET MANAGEMENT L.P. | New Position | 317,511 | Aug 14, 2026 |
| ADAR1 Capital Management, LLC | New Position | 298,757 | Aug 14, 2026 |
| BRAIDWELL LP | New Position | 156,890 | Aug 14, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 84,550 | May 15, 2026 |
| CITADEL ADVISORS LLC | Increased | 59,795 | Sep 2, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 45,850 | Aug 12, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 30,915 | Aug 13, 2026 |
| Rangeley Capital, LLC | New Position | 24,310 | Aug 14, 2026 |
| HRT FINANCIAL LP | New Position | 22,054 | Aug 14, 2026 |
| CITADEL ADVISORS LLC | New Position | 18,261 | May 15, 2026 |
| BLACKROCK, INC. | Unchanged | 16,797 | May 13, 2026 |
| BlackRock, Inc. | Unchanged | 16,797 | Aug 7, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 16,137 | May 15, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Aug 18, 2026