4 insiders reported 6 Form 4 transactions for Cyclerion Therapeutics, Inc. (CYCN) over the past 18 months (most recent 2026-08-18). Recent activity: Graul Regina Margaret (See Remarks) Sell 48,629 shares, Graul Regina Margaret (See Remarks) Buy 55,849 shares, CHICKO RHONDA M. (Chief Financial Officer) Buy 25,000 shares, Hecht Peter M (Director) Buy 351,037 shares, Higgins Michael J (Director) Buy 9,090 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-18 | Graul Regina Margaret | See Remarks | Sell | 48,629 | $184,304 |
| 2026-08-18 | Graul Regina Margaret | See Remarks | Buy | 55,849 | $184,302 |
| 2026-08-18 | CHICKO RHONDA M. | Chief Financial Officer | Buy | 25,000 | $58,875 |
| 2026-07-20 | Hecht Peter M | Director | Buy | 351,037 | $0 |
| 2025-03-27 | Higgins Michael J | Director | Buy | 9,090 | $24,998 |
| 2025-03-27 | Hecht Peter M | Director | Buy | 181,818 | $500,000 |
Source: SEC Form 4 filings · as of 2026-08-18