---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-329645"
form_type: "8-K"
ticker: "ABTC"
cik: "0001755953"
company_name: "American Bitcoin Corp."
filed_at: "2026-08-03T13:00:17+00:00"
generated_at: "2026-08-03T13:01:07.643574+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# American Bitcoin appoints Paul Sacks as Interim CFO; Matthew Prusak steps down as President and Interim CFO

## Summary
- Paul Sacks appointed Interim CFO effective August 4, 2026, while retaining his role as Head of Derivatives.
- Matthew Prusak voluntarily resigned as President and Interim CFO effective August 4, 2026, to pursue a position in Austin, Texas.
- Prusak's departure was not due to any disagreement with the Company on financial statements, operations, or policies.
- Sacks, 53, previously served as Co-Head of Digital Exotics at BlockFills and Co-Founder of Digital Gamma.

## SEC filing metadata
- accession: 0001193125-26-329645
- form_type: 8-K
- ticker: ABTC
- cik: 0001755953
- company_name: American Bitcoin Corp.
- filed_at: 2026-08-03T13:00:17+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1755953/000119312526329645/0001193125-26-329645-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1755953/000119312526329645/abtc-20260730.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-329645
- JSON: https://secwatch.observer/filing/0001193125-26-329645.json
- Plain text: https://secwatch.observer/filing/0001193125-26-329645.txt

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