Did ABTC report any disagreements with Matthew Prusak related to financial reporting or operations?

American Bitcoin Corp. states that Matthew Prusak’s resignation was voluntary and not the result of any disagreement regarding the company’s financial statements, operations, policies, or practices.

American Bitcoin names interim chief financial officer

Q: 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.

Q: 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.

Q: 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.

Q: Are there any related-party or family relationships tied to ABTC’s new Interim CFO?

American Bitcoin Corp. reports there are no arrangements leading to Paul Sacks’s appointment, no family relationships with directors or executive officers, and no material interests requiring disclosure under Item 404(a) of Regulation S-K.

American Bitcoin Corp. appointed Paul Sacks as Interim Chief Financial Officer, effective August 4, 2026.

Filing Impact

(High)

Filing Sentiment

(Neutral)

Form Type

8-K

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.

Insights

Analyzing...

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, or 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"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

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.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/03/2026 - 09:00 AM Accepted by SEC EDGAR 08/03/2026 - 09:00 AM

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

     Date of Report (Date of earliest event reported): July 30, 2026

    

American Bitcoin Corp.

(Exact name of Registrant as Specified in Its Charter)


Delaware	001-39096	83-2242651
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)

777 Brickell Avenue Suite 200
Miami, Florida		33131
(Address of Principal Executive Offices)		(Zip Code)

     Registrant’s Telephone Number, Including Area Code: 305 224-6427

    

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Class A Common Stock, par value $0.0001 per share	ABTC	The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

Appointment of Interim Chief Financial Officer

On July 31, 2026, the Board of Directors of American Bitcoin Corp. (the "Company") appointed Paul Sacks as Interim Chief Financial Officer of the Company, effective as of August 4, 2026. Mr. Sacks will serve as Interim Chief Financial Officer in addition to his existing role as Head of Derivatives of the Company, with no change to his existing compensation or benefits.

Mr. Sacks, 53, has served as Head of Derivatives at the Company since May 2026. He previously served as Co-Head of Digital Exotics at BlockFills from November 2022 to March 2026. Prior to that, Mr. Sacks was a Co-Founder and Managing Member of Digital Gamma from January 2017 to November 2022. He holds a Bachelor of Business Administration from the University of Massachusetts Amherst.

In connection with Mr. Sacks's appointment as an executive officer, the Company entered into an indemnification agreement with Mr. Sacks, the form of which was previously filed as Exhibit 10.1 to the Company's Current Report on Form 8-K filed on September 3, 2025. There are no arrangements or understandings between Mr. Sacks and any other person pursuant to which Mr. Sacks was appointed as Interim Chief Financial Officer of the Company. There are no family relationships between Mr. Sacks and any director or executive officer of the Company, and he has no direct or indirect material interest in any transaction required to be disclosed pursuant to Item 404(a) of Regulation S-K.

Departure of President and Interim Chief Financial Officer

On July 30, 2026, Matthew Prusak notified the Company that he will step down from his role as President and Interim Chief Financial Officer, effective as of August 4, 2026, to pursue a position in his hometown of Austin, Texas. Mr. Prusak's resignation was voluntary and was not the result of any disagreement with the Company on any matter relating to the Company's financial statements, operations, policies, or practices.

Item 9.01 Financial Statements and Exhibits.



Exhibit No.		Description
104		Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.


			AMERICAN BITCOIN CORP.

Date:	August 3, 2026	By:	/s/ Michael Ho
			Michael Ho, Chief Executive Officer

Source: View Original Filing on SEC EDGAR

Filing Exhibits & Attachments

1 document