[Form 4] TERAWULF INC. Insider Trading Activity

Rhea-AI Filing Summary

TeraWulf Inc. Chief Accounting Officer William J. Tanimoto reported an equity award of 9,419 restricted stock units (RSUs) on January 14, 2026. Each RSU represents a contingent right to receive one share of TeraWulf common stock with a par value of $0.001 per share. The RSUs were granted at a price of $0 and are reported as directly owned. The award vests in three equal installments on each of the first three anniversaries of January 14, 2026, as long as Tanimoto continues employment or service with the company through each vesting date.

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

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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^*

Tanimoto William Joseph

(Last) (First) (Middle)

C/O TERAWULF INC.

9 FEDERAL STREET

(Street)

EASTON MD 21601

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
TERAWULF INC. [ WULF ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Accounting Officer

3. Date of Earliest Transaction (Month/Day/Year)
01/14/2026

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

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
Restricted Stock Units	(1)	01/14/2026		A		9,419		(2)	(2)	Common stock, $0.001 par value per share	9,419	$0	9,419	D

Explanation of Responses:

1. Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's common stock, $0.001 par value per share.

2. The restricted stock units vest in three equal installments upon each of the first three anniversaries of January 14, 2026, subject to the Reporting Person's continued employment or service with the Issuer through each such date.

Remarks:

	/s/ Stefanie C. Fleischmann, as attorney-in-fact for William J. Tanimoto	01/16/2026
	** 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

Who is the insider in this TeraWulf (WULF) Form 4 filing?

The insider is William J. Tanimoto, who serves as Chief Accounting Officer of TeraWulf Inc.

What type of security did TeraWulf (WULF) grant to its Chief Accounting Officer?

TeraWulf granted Restricted Stock Units (RSUs), each representing a contingent right to receive one share of the company’s common stock with $0.001 par value per share.

How many restricted stock units were granted in this TeraWulf (WULF) Form 4?

The Form 4 reports a grant of 9,419 Restricted Stock Units to the Chief Accounting Officer.

When do the TeraWulf (WULF) restricted stock units begin vesting?

The RSUs begin vesting on January 14, 2027, which is the first anniversary of the January 14, 2026 grant date, based on the described vesting schedule.

What is the vesting schedule for the 9,419 TeraWulf (WULF) RSUs?

The 9,419 RSUs vest in three equal installments on each of the first three anniversaries of January 14, 2026, subject to continued employment or service through each vesting date.

Is this TeraWulf (WULF) Form 4 transaction direct or indirect ownership?

The Form 4 reports that the 9,419 RSUs are held under direct (D) ownership by the reporting person.