CYCN insider filings
Cyclerion Therapeutics, Inc. — 16 most recent insider filings (SEC Forms 3/4/5) from EDGAR, normalized by FilingPulse. Latest filing: 2026-08-18. Screen CYCN transaction legs live →
Insider transaction summary — last 90 days
2026-07-10 to 2026-10-08, from the filings listed below: 3 insider filings (Forms 3/4/5). Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 7.
By insider — same window
Open-market purchase/sale legs on non-derivative securities, grouped by the filing's reporting owner(s); joint filings appear once. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Insider | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|
| Graul Regina Margaret — See Remarks, Director | 1 | — | — | 3 |
| CHICKO RHONDA M. — Chief Financial Officer | 1 | — | — | 2 |
| Hecht Peter M — Director, 10% owner | 1 | — | — | 2 |
Recent insider filings — Cyclerion Therapeutics, Inc.
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-18 | 4 | CHICKO RHONDA M. — Chief Financial Officer | Option exercise (M): 25,000 @ $2.35 · Option exercise (M): 25,000 (derivative) @ $0 | EDGAR |
| 2026-08-18 | 4 | Graul Regina Margaret — See Remarks, Director | Option exercise (M): 55,849 @ $3.30 · Tax withholding (F): 48,629 @ $3.79 · Option exercise (M): 55,849 (derivative) @ $0 | EDGAR |
| 2026-07-20 | 4 | Hecht Peter M — Director, 10% owner | Conversion (C): 351,037 · Conversion (C): 351,037 (derivative) | EDGAR |
| 2025-08-11 | 4 | CHICKO RHONDA M. — Chief Financial Officer | Grant/award (A): 25,000 (derivative) @ $0 | EDGAR |
| 2025-03-27 | 4 | Higgins Michael J — Director | Grant/award (A): 9,090 @ $2.75 | EDGAR |
| 2025-03-27 | 4 | Hecht Peter M — Director, 10% owner | Grant/award (A): 181,818 @ $2.75 | EDGAR |
| 2024-11-25 | 4 | Slate Path Capital LP — 10% owner Greenspan David Gerald — 10% owner | Sale (S): 357,880 @ $1.55 | EDGAR |
| 2024-08-07 | 4 | Graul Regina Margaret — See Remarks, Director | Grant/award (A): 55,849 (derivative) @ $0 | EDGAR |
| 2024-01-26 | 4 | Graul Regina Margaret — President | Grant/award (A): 50,000 @ $0 | EDGAR |
| 2024-01-26 | 4 | Hecht Peter M — Director, 10% owner | Grant/award (A): 15,000 @ $0 | EDGAR |
| 2023-12-04 | 4 | Hyman Steven — Director | Grant/award (A): 20,000 @ $0 | EDGAR |
| 2023-12-04 | 4 | Hecht Peter M — Director, 10% owner | Grant/award (A): 20,000 @ $0 · Grant/award (A): 15,000 @ $0 | EDGAR |
| 2023-12-04 | 4 | DESOUZA ERROL B — Director | Grant/award (A): 20,000 @ $0 · Grant/award (A): 30,000 @ $0 | EDGAR |
| 2023-12-04 | 4 | MCGUIRE TERRANCE — Director | Grant/award (A): 5,000 @ $0 | EDGAR |
| 2023-08-11 | 4 | MCGUIRE TERRANCE — Director | Sale (S): 8 @ $3.40 | EDGAR |
| 2023-05-22 | 4 | Hecht Peter M — Chief Executive Officer, Director, 10% owner | Grant/award (A): 225,000 @ $8.68 · Grant/award (A): 351,037 (derivative) @ $8.68 | EDGAR |
Recent 8-K events — Cyclerion Therapeutics, Inc.
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-09-11 | 8-K | 1.01 — Entry into a Material Definitive Agreement 2.01 — Completion of Acquisition or Disposition of Assets 2.02 — Results of Operations and Financial Condition 3.02 — Unregistered Sales of Equity Securities 3.03 — Material Modification to Rights of Security Holders 5.01 — Changes in Control of Registrant 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 5.03 — Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year 5.05 — Amendments to the Registrant's Code of Ethics, or Waiver of a Provision of the Code of Ethics 5.06 — Change in Shell Company Status 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-08-27 | 8-K | 5.07 — Submission of Matters to a Vote of Security Holders 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-08-25 | 8-K | 8.01 — Other Events | EDGAR |
| 2026-04-01 | 8-K | 1.01 — Entry into a Material Definitive Agreement 5.01 — Changes in Control of Registrant 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-02-17 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-01-06 | 8-K | 1.01 — Entry into a Material Definitive Agreement 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-12-01 | 8-K | 8.01 — Other Events | EDGAR |
| 2025-09-23 | 8-K | 1.01 — Entry into a Material Definitive Agreement 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-06-18 | 8-K | 5.07 — Submission of Matters to a Vote of Security Holders 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-05-07 | 8-K | 1.01 — Entry into a Material Definitive Agreement 9.01 — Financial Statements and Exhibits | EDGAR |
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