---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-25-063717"
form_type: "8-K"
ticker: "GCMG"
cik: "0001819796"
company_name: "GCM Grosvenor Inc."
filed_at: "2025-07-14T23:59:59+00:00"
generated_at: "2026-05-18T06:44:15.941898+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# GCM Grosvenor officer Sandra Buchanan resigns, effective Oct 3, 2025

## Summary
- Sandra Buchanan resigned from her position, effective October 3, 2025.
- She agreed to assist the Company with transition of responsibilities.
- No replacement or further details on her role were disclosed in the filing.

## SEC filing metadata
- accession: 0001213900-25-063717
- form_type: 8-K
- ticker: GCMG
- cik: 0001819796
- company_name: GCM Grosvenor Inc.
- filed_at: 2025-07-14T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1819796/000121390025063717/0001213900-25-063717-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1819796/000121390025063717/ea0248853-8k_gcmgros.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-063717
- JSON: https://secwatch.observer/filing/0001213900-25-063717.json
- Plain text: https://secwatch.observer/filing/0001213900-25-063717.txt

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