American Bitcoin (ABTC) director buys 1.8M shares in open-market trade

Rhea-AI Filing Summary

American Bitcoin Corp. director Mateen Justin bought 1,800,000 Class A Common Stock shares in an open-market purchase. The shares were acquired at a weighted average price of $1.03 per share. Following this transaction, Justin directly owns 2,524,975 shares of American Bitcoin Corp.

Insider Trade Summary

Net Buyer: 1,800,000 shares ($1,854,000)

Net Buy 1 txn

Insider Mateen Justin

Role Director

Bought 1,800,000 shs ($1.85M)

Type	Security	Shares	Price	Value
Purchase	Class A Common Stock	1,800,000	$1.03	$1.85M

Holdings After Transaction: Class A Common Stock — 2,524,975 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Mateen Justin

(Last) (First) (Middle)

1101 BRICKELL AVENUE, SUITE 1500

(Street)

MIAMI FL 33131

(City) (State) (Zip)

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		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
03/03/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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
Class A Common Stock	03/03/2026		P		1,800,000	A	$1.03(1)	2,524,975	D

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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. The price reported in Column 4 is a weighted average price. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.

	/s/ Aliza Rana, as Attorney-in-Fact	03/05/2026
	** Signature of Reporting Person	Date
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).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did American Bitcoin Corp. (ABTC) director Mateen Justin report on this Form 4?

Mateen Justin reported buying 1,800,000 Class A Common Stock shares of American Bitcoin Corp. The transaction was an open-market purchase, increasing his direct holdings to 2,524,975 shares after the trade was completed.

How many American Bitcoin Corp. (ABTC) shares did the director purchase?

The director purchased 1,800,000 shares of American Bitcoin Corp. Class A Common Stock. This large open-market transaction significantly increased his stake, bringing his total direct ownership to 2,524,975 shares following the reported trade.

What price did Mateen Justin pay for ABTC shares in this transaction?

The reported price is a weighted average of $1.03 per share. A weighted average means individual trades occurred at different prices; the director has undertaken to provide full price details upon request to the issuer, its shareholders, or SEC staff.

What is Mateen Justin’s total direct ownership in American Bitcoin Corp. after the trade?

After the reported purchase, Mateen Justin directly owns 2,524,975 shares of American Bitcoin Corp. Class A Common Stock. This figure reflects his holdings immediately following the 1,800,000-share open-market acquisition disclosed in the Form 4 filing.

Was the ABTC insider transaction a buy or a sell?

The transaction was a buy. The Form 4 shows an open-market purchase of 1,800,000 Class A Common Stock shares by director Mateen Justin, with no reported sales in this filing and a net increase in his share ownership.

What does the weighted average price disclosure mean in this ABTC Form 4?

The weighted average price of $1.03 indicates multiple trades at different prices were combined into one average figure. The reporting person committed to provide detailed price breakdowns for each trade upon request to the company, shareholders, or SEC staff.