Sec Form 3 Filing - Hut 8 Corp. @ American Bitcoin Corp. - 2025-09-03

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Hut 8 Corp. 2. Issuer Name and Ticker or Trading Symbol American Bitcoin Corp. [ ABTC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 1101 BRICKELL AVENUE, SUITE 1500 3. Date of Earliest Transaction (MM/DD/YY) 09/03/2025 (Street) MIAMI, FL33131 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Class B Common Stock ( 1 ) ( 1 ) ( 1 ) Class A Common Stock 585,779,924 ( 2 ) D ( 3 ) ( 4 ) ( 5 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Hut 8 Corp. 1101 BRICKELL AVENUE, SUITE 1500 MIAMI, FL33131 X X U.S. Data Mining Group, Inc. 1101 BRICKELL AVENUE, SUITE 1500 MIAMI, FL33131 X X AMERICAN BITCOIN HOLDINGS LLC 1101 BRICKELL AVENUE, SUITE 1500 MIAMI, FL33131 X X Signatures HUT 8 CORP. By: /s/ Victor Semah, as Attorney-in-Fact 09/12/2025 Signature of Reporting Person Date U.S. DATA MINING GROUP, INC. By: /s/ Victor Semah, as Attorney-in-Fact 09/12/2025 Signature of Reporting Person Date AMERICAN BITCOIN HOLDINGS LLC By: /s/ Victor Semah, as Attorney-in-Fact 09/12/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Shares of Class B Common Stock, par value $0.0001 per share ("Class B Common Stock"), of American Bitcoin Corp., a Delaware corporation (f/k/a Gryphon Digital Mining, Inc.) (the "Company"), are convertible into an equal number of shares of Class A Common Stock, par value $0.0001 per share, of the Company ("Class A Common Stock") for no additional consideration at any time at the option of the holder. ( 2 )On September 3, 2025 (the "Closing Date"), pursuant to an Agreement and Plan of Merger, dated as of May 9, 2025, by and among the Company, GDM Merger Sub I Inc., a Delaware corporation and wholly owned direct subsidiary of the Company ("Merger Sub Inc."), GDM Merger Sub II LLC, a Delaware limited liability company and wholly owned direct subsidiary of the Company ("Merger Sub LLC"), and American Bitcoin Corp., a Delaware corporation ("Historical ABTC"), (i) Merger Sub Inc. was merged with and into Historical ABTC, with Historical ABTC surviving as a wholly owned direct subsidiary of the Company and (ii) immediately thereafter, Historical ABTC was merged with and into Merger Sub LLC, with Merger Sub LLC surviving as a wholly owned direct subsidiary of the Company (the "Mergers"). ( 3 )In accordance with the Merger Agreement, on the Closing Date American Bitcoin Holdings LLC ("ABH"), a Delaware limited liability company and wholly owned indirect subsidiary of Hut 8 Corp. ("Hut 8"), was issued 585,779,924 shares of Class B Common Stock as consideration for shares of Historical ABTC held by ABH as of immediately prior to the consummation of the Mergers. ( 4 )Represents securities owned directly by ABH. 99.9% of the outstanding limited liability company interests of ABH are held by U.S. Data Mining Group, Inc., a Nevada corporation ("USDMG"). USDMG is a wholly owned direct subsidiary of Hut 8. Consequently, ABH, Hut 8 and USDMG (collectively, the "Reporting Persons") may be deemed to have shared beneficial ownership of all of the securities beneficially owned by ABH. Neither the filing of this Form 3 nor any of its contents shall be deemed to constitute an admission that any of the Reporting Persons (other than ABH to the extent it directly holds the securities reported on this Form 3) is the beneficial owner of the Class B Common Stock referred to herein for purposes of Section 16 under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose, and such beneficial ownership is expressly disclaimed except to the extent of the Reporting Persons' respective pecuniary interest therein. ( 5 )Solely for purposes of Section 16 of the Exchange Act, the Reporting Persons may be deemed to be directors-by-deputization by virtue of the Reporting Persons' control of a majority of the voting power of the Company's outstanding capital stock, including with respect to the election of directors.

Remarks: Exhibit 24 - Power of Attorney

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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