---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-365150"
form_type: "8-K"
ticker: "CYCN"
cik: "0001755237"
company_name: "Cyclerion Therapeutics, Inc."
filed_at: "2026-08-25T20:15:44+00:00"
generated_at: "2026-08-25T20:18:55.285060+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Cyclerion sets Sept 4, 2026 record date for CVR distribution in Korsana merger

## Summary
- Record date of Sept 4, 2026 fixed for contingent value rights (CVRs) to holders of common stock and Series A Preferred.
- CVRs issued in connection with planned merger with Korsana Biosciences; merger still pending shareholder approval.
- CVR payment date, number of CVRs, and terms (transferability, listing) not yet disclosed.
- Merger completion remains subject to closing conditions, including obtaining required approvals.

## SEC filing metadata
- accession: 0001193125-26-365150
- form_type: 8-K
- ticker: CYCN
- cik: 0001755237
- company_name: Cyclerion Therapeutics, Inc.
- filed_at: 2026-08-25T20:15:44+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1755237/000119312526365150/0001193125-26-365150-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1755237/000119312526365150/d376250d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-365150
- JSON: https://secwatch.observer/filing/0001193125-26-365150.json
- Plain text: https://secwatch.observer/filing/0001193125-26-365150.txt

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