---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-25-083726"
form_type: "8-K"
ticker: "ABTC"
cik: "0001755953"
company_name: "American Bitcoin Corp."
filed_at: "2025-09-03T23:59:59+00:00"
generated_at: "2026-05-17T08:36:17.810321+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Gryphon completes reverse merger with American Bitcoin Corp.; Hut 8 subsidiary gains ~80% voting control

## Summary
- On Sept 3, 2025, Gryphon merged with Historical ABTC; combined company renamed American Bitcoin Corp. and trades as ABTC.
- Former ABTC stockholders received ~98% of combined company common stock; legacy Gryphon holders hold ~2%.
- American Bitcoin Holdings LLC (Hut 8 subsidiary) holds 585.8M Class B shares with 10,000 votes each, ~80% voting power.
- New board: Richard Busch, Justin Mateen, Michael Broukhim, Asher Genoot (Exec. Chairman), Michael Ho (CEO); Matt Prusak President & interim CFO.
- Prior to merger, Gryphon effected a 5:1 reverse stock split; all pre-merger directors and officers resigned.

## SEC filing metadata
- accession: 0001213900-25-083726
- form_type: 8-K
- ticker: ABTC
- cik: 0001755953
- company_name: American Bitcoin Corp.
- filed_at: 2025-09-03T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 1.01, 1.02, 2.01, 3.02, 5.03, 3.03, 5.01, 5.02, 5.05, 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1755953/000121390025083726/0001213900-25-083726-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1755953/000121390025083726/ea0255440-8k_american.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-083726
- JSON: https://secwatch.observer/filing/0001213900-25-083726.json
- Plain text: https://secwatch.observer/filing/0001213900-25-083726.txt

## Key facts
- M&A Transactions
  American Bitcoin Corp. underwent a change of control involving American Bitcoin Holdings LLC (closed 2025-09-03).
  - Action: change of control
  - Counterparty: American Bitcoin Holdings LLC
  - Closing: 2025-09-03
  source text: A change in control of the Company occurred on September 3, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1755953/000121390025083726/0001213900-25-083726-index.htm

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