American Bitcoin Corp. (ABTC) shifts CFO role as President steps down
Rhea-AI Filing Summary
American Bitcoin Corp. appointed Paul Sacks as Interim Chief Financial Officer, effective August 4, 2026. He will hold this role in addition to serving as Head of Derivatives, with no change to his existing compensation or benefits. Sacks, age 53, joined the company in May 2026 and previously held senior derivatives roles at BlockFills and Digital Gamma.
In connection with his appointment as an executive officer, the company entered into an indemnification agreement with Sacks, based on a previously filed form. The company states there are no appointment-related arrangements, no family relationships with directors or executives, and no related-party transactions requiring disclosure. Matthew Prusak will step down as President and Interim CFO effective August 4, 2026, following a voluntary resignation to pursue a role in Austin, Texas, which the company notes was not due to any disagreement over financial statements, operations, policies, or practices.
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8-K Event Classification
2 items: 5.02, 9.01
2 items
Item 5.02
Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers
Governance
Key personnel changes including departures, elections, or appointments of directors and executive officers.
Item 9.01
Financial Statements and Exhibits
Exhibits
Financial statements, pro forma financial information, and exhibit attachments filed with this report.
Key Figures
Effective date of CFO transition: August 4, 2026
Notice date of Prusak resignation: July 30, 2026
Appointment date of Sacks as Interim CFO: July 31, 2026
+1 more
4 metrics
Effective date of CFO transition
August 4, 2026
Date when Paul Sacks becomes Interim CFO and Matthew Prusak steps down
Notice date of Prusak resignation
July 30, 2026
Date Prusak informed the company he would step down
Appointment date of Sacks as Interim CFO
July 31, 2026
Date the Board appointed Paul Sacks as Interim CFO
Age of Paul Sacks
53
Age of the new Interim Chief Financial Officer
Key Terms
Interim Chief Financial Officer, indemnification agreement, emerging growth company, Item 404(a) of Regulation S-K
4 terms
Interim Chief Financial Officer financial
"appointed Paul Sacks as Interim Chief Financial Officer of the Company"
An interim chief financial officer is a temporary leader responsible for managing a company's financial activities, such as budgeting, financial planning, and reporting, during a transitional period. Think of it as filling in for a key manager until a permanent replacement is found. For investors, this role is important because it ensures financial stability and clear guidance during times of change or uncertainty.
indemnification agreement regulatory
"the Company entered into an indemnification agreement with Mr. Sacks"
An indemnification agreement is a contract in which one party promises to cover losses, costs, or legal claims that another party might face, acting like a tailored safety net or private insurance policy. For investors, it matters because such agreements shift potential financial risk away from a company or its officers and onto the indemnifier, which can affect a company’s future liabilities, cash flow and how risky the investment appears during deal-making or litigation.
emerging growth company regulatory
"Emerging growth company"
An emerging growth company is a recently public or smaller public firm that qualifies for temporary, lighter regulatory and disclosure rules to reduce the cost and effort of being public. For investors, it means the company may provide less historical financial detail and face fewer reporting requirements than larger firms, so it can grow more quickly but also carries higher uncertainty—like buying a promising early-stage product with fewer user reviews.
Item 404(a) of Regulation S-K regulatory
"any transaction required to be disclosed pursuant to Item 404(a) of Regulation S-K"
AI-generated analysis. How Rhea-AI works. Not financial advice.
FAQ
What executive leadership changes were disclosed by ABTC in this 8-K?
American Bitcoin Corp. appointed Paul Sacks as Interim Chief Financial Officer effective August 4, 2026, while Matthew Prusak will step down as President and Interim CFO on the same date following his voluntary resignation.
Who is Paul Sacks, the new Interim CFO of ABTC, and what is his background?
Paul Sacks, age 53, has been Head of Derivatives at American Bitcoin Corp. since May 2026. He previously served as Co-Head of Digital Exotics at BlockFills and Co-Founder and Managing Member of Digital Gamma and holds a BBA from UMass Amherst.
Will Paul Sacks receive additional compensation as Interim CFO of ABTC?
American Bitcoin Corp. states that Paul Sacks will serve as Interim Chief Financial Officer with no change to his existing compensation or benefits, while retaining his role as Head of Derivatives.
Why is ABTC’s President and Interim CFO, Matthew Prusak, resigning?
Matthew Prusak notified American Bitcoin Corp. on July 30, 2026 that he will step down to pursue a position in his hometown of Austin, Texas, and the company notes his resignation was voluntary and not due to any disagreement.
Did ABTC enter into any special agreements with Paul Sacks as he became Interim CFO?
In connection with his appointment as an executive officer, American Bitcoin Corp. entered into an indemnification agreement with Paul Sacks, using a form previously filed as Exhibit 10.1.