---
schema_version: "secwatch.filing_event.v1"
accession: "0000950103-25-004583"
form_type: "8-K"
ticker: "BTC"
cik: "0002015034"
company_name: "Grayscale Bitcoin Mini Trust ETF"
filed_at: "2025-04-09T23:59:59+00:00"
generated_at: "2026-05-23T18:37:25.898513+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Grayscale Bitcoin Mini Trust appoints Diana Zhang as COO, effective May 6

## Summary
- Diana Zhang named COO of Grayscale Operating, LLC (sponsor), effective May 6, 2025; reports to CEO Peter Mintzberg.
- Zhang succeeds Hugh Ross, who steps down after four years; Ross remains for transition until May 31, 2025.
- Zhang brings 18+ years experience; previously Deputy to co-CEO at Bridgewater, COO at BlockTower Capital.

## SEC filing metadata
- accession: 0000950103-25-004583
- form_type: 8-K
- ticker: BTC
- cik: 0002015034
- company_name: Grayscale Bitcoin Mini Trust ETF
- filed_at: 2025-04-09T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2015034/000095010325004583/0000950103-25-004583-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2015034/000095010325004583/dp227430_8k-btc.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950103-25-004583
- JSON: https://secwatch.observer/filing/0000950103-25-004583.json
- Plain text: https://secwatch.observer/filing/0000950103-25-004583.txt

## Key facts
- Executive change
  Hugh Ross departed as Chief Operating Officer at Grayscale Bitcoin Mini Trust ETF.
  - Action: stepped down
  - Role: Chief Operating Officer
  source text: who has decided to step down from his position and is expected to remain with Grayscale to assist with the transition of his responsibilities until his departure on or prior to May 31, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/2015034/000095010325004583/0000950103-25-004583-index.htm

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