---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-072820"
form_type: "8-K"
ticker: "GBTC"
cik: "0001588489"
company_name: "Grayscale Bitcoin Trust ETF"
filed_at: "2023-12-26T23:59:59+00:00"
generated_at: "2026-06-07T07:20:41.554247+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Grayscale Bitcoin Trust board changes: Silbert, Murphy resign; Shifke named Chairman

## Summary
- Barry Silbert and Mark Murphy resign from the Trust's board effective January 1, 2024.
- Mark Shifke, DCG CFO, appointed Chairman; Matthew Kummell and Edward McGee join the board.
- Board now comprises Shifke, Kummell, Michael Sonnenshein, and Edward McGee as of January 1.

## SEC filing metadata
- accession: 0000950170-23-072820
- form_type: 8-K
- ticker: GBTC
- cik: 0001588489
- company_name: Grayscale Bitcoin Trust ETF
- filed_at: 2023-12-26T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1588489/000095017023072820/0000950170-23-072820-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1588489/000095017023072820/gbtc-20231226.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-072820
- JSON: https://secwatch.observer/filing/0000950170-23-072820.json
- Plain text: https://secwatch.observer/filing/0000950170-23-072820.txt

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