---
schema_version: "secwatch.filing_event.v1"
accession: "0000950103-24-006873"
form_type: "8-K"
ticker: "GBTC"
cik: "0001588489"
company_name: "Grayscale Bitcoin Trust ETF"
filed_at: "2024-05-20T23:59:59+00:00"
generated_at: "2026-06-01T12:41:42.192062+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Grayscale Bitcoin Trust appoints Peter Mintzberg as CEO effective Aug 15, 2024

## Summary
- Peter Mintzberg appointed CEO of Grayscale Investments, effective August 15, 2024, also joining the board.
- Michael Sonnenshein steps down immediately; CFO Edward McGee serves as interim principal executive officer.
- Mintzberg joins from Goldman Sachs as Global Head of Strategy for Asset and Wealth Management.
- Under Sonnenshein, Grayscale grew from $60M to ~$30B AUM and won SEC court case for spot Bitcoin ETF.
- Sonnenshein steps down to pursue other interests; transition is planned and smooth.

## SEC filing metadata
- accession: 0000950103-24-006873
- form_type: 8-K
- ticker: GBTC
- cik: 0001588489
- company_name: Grayscale Bitcoin Trust ETF
- filed_at: 2024-05-20T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1588489/000095010324006873/0000950103-24-006873-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1588489/000095010324006873/dp211407_8k-gbtc.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950103-24-006873
- JSON: https://secwatch.observer/filing/0000950103-24-006873.json
- Plain text: https://secwatch.observer/filing/0000950103-24-006873.txt

## Key facts
- Executive change
  Michael Sonnenshein departed as Chief Executive Officer at Grayscale Bitcoin Trust ETF.
  - Action: stepped down
  - Role: Chief Executive Officer
  source text: has decided to step down from his position, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1588489/000095010324006873/0000950103-24-006873-index.htm
- Executive change
  Edward McGee was appointed as Principal Executive Officer (interim) at Grayscale Bitcoin Trust ETF.
  - Action: appointed as interim
  - Role: Principal Executive Officer (interim)
  source text: Mr. Edward McGee, the Chief Financial Officer of Grayscale and principal financial officer of the Company, will serve as principal executive officer on an interim basis
  evidence_url: https://www.sec.gov/Archives/edgar/data/1588489/000095010324006873/0000950103-24-006873-index.htm
- Executive change
  Peter Mintzberg was appointed as Chief Executive Officer at Grayscale Bitcoin Trust ETF.
  - Action: appointed
  - Role: Chief Executive Officer
  source text: the appointment of Peter Mintzberg to serve as Grayscale’s new Chief Executive Officer
  evidence_url: https://www.sec.gov/Archives/edgar/data/1588489/000095010324006873/0000950103-24-006873-index.htm

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