---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-195410"
form_type: "8-K"
ticker: "CYCN"
cik: "0001755237"
company_name: "Cyclerion Therapeutics, Inc."
filed_at: "2024-08-07T23:59:59+00:00"
generated_at: "2026-05-31T11:50:04.703715+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Cyclerion promotes Regina Graul, Ph.D., to CEO and President

## Summary
- Regina Graul, Ph.D., promoted to CEO, President, and Board member effective August 7, 2024.
- Graul joined Cyclerion as President in December 2023 and led cost reduction and business development efforts.
- Company reducing operating costs while evaluating multiple business development prospects for asset in-licensing.
- Errol DeSouza, Ph.D., Board Chair, cites Graul's work in assessing new therapies and enhancing shareholder value.
- No financial guidance or financial results provided in the announcement.

## SEC filing metadata
- accession: 0001193125-24-195410
- form_type: 8-K
- ticker: CYCN
- cik: 0001755237
- company_name: Cyclerion Therapeutics, Inc.
- filed_at: 2024-08-07T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1755237/000119312524195410/0001193125-24-195410-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1755237/000119312524195410/d878134d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-195410
- JSON: https://secwatch.observer/filing/0001193125-24-195410.json
- Plain text: https://secwatch.observer/filing/0001193125-24-195410.txt

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