---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-062612"
form_type: "8-K"
ticker: "CYCN"
cik: "0001755237"
company_name: "Cyclerion Therapeutics, Inc."
filed_at: "2025-03-25T23:59:59+00:00"
generated_at: "2026-05-24T05:54:59.503948+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Cyclerion raises $1.375M in private placement of 499,998 shares at $2.75/sh

## Summary
- Sold 499,998 shares at $2.75 each to insiders Peter Hecht and Michael Higgins.
- Gross proceeds $1.375M; net for general corporate purposes.
- Private placement closed March 25, 2025; shares unregistered under Securities Act.
- Registration rights agreement requires filing registration statement by May 9, 2025.

## SEC filing metadata
- accession: 0001193125-25-062612
- form_type: 8-K
- ticker: CYCN
- cik: 0001755237
- company_name: Cyclerion Therapeutics, Inc.
- filed_at: 2025-03-25T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 1.01, 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1755237/000119312525062612/0001193125-25-062612-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1755237/000119312525062612/d926001d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-062612
- JSON: https://secwatch.observer/filing/0001193125-25-062612.json
- Plain text: https://secwatch.observer/filing/0001193125-25-062612.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.