=== SEC Form 4 — Statement of Changes in Beneficial Ownership ===
Document Type: 4
Period of Report: 2026-06-24
10b5-1 Pre-arranged Plan: No
--- Issuer ---
Name: TERAWULF INC. (WULF)
CIK: 0001083301
--- Reporting Owner ---
Name: Tanimoto William Joseph
CIK: 0002074786
Role: Officer (Chief Accounting Officer)
--- Non-Derivative Transactions ---
[Transaction #1]
Security: Common stock, $0.001 par value per share
Date: 2026-06-24 | Code: M (Exercise of derivative)
Shares: +10,000
Shares Owned After: 48,898 | Ownership: D (Direct)
Footnotes:
[F1] The Reporting Person received Restricted Stock Units which vested in accordance with their terms upon the first anniversary of June 24, 2025, as reported in this Form 4, subject to the Reporting Person's continued employment or service with the Issuer through such date.
--- Derivative Transactions ---
[Transaction #1]
Security: Restricted Stock Units
Date: 2026-06-24 | Code: M (Exercise of derivative)
Shares: -10,000
Shares Owned After: 20,000 | Ownership: D (Direct)
Footnotes:
[F2] Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's common stock, $0.001 par value per share.
[F4] The remaining Restricted Stock Units will vest in accordance with their terms on each of the second and third anniversaries of June 24, 2025, subject to the Reporting Person's continued employment or service with the Issuer through each such date.
[F3] The Restricted Stock Units vested in accordance with their terms upon the first anniversary of June 24, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date.
[F3] The Restricted Stock Units vested in accordance with their terms upon the first anniversary of June 24, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date.
--- Footnotes (Complete Index) ---
F1: The Reporting Person received Restricted Stock Units which vested in accordance with their terms upon the first anniversary of June 24, 2025, as reported in this Form 4, subject to the Reporting Person's continued employment or service with the Issuer through such date.
F2: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's common stock, $0.001 par value per share.
F3: The Restricted Stock Units vested in accordance with their terms upon the first anniversary of June 24, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date.
F4: The remaining Restricted Stock Units will vest in accordance with their terms on each of the second and third anniversaries of June 24, 2025, subject to the Reporting Person's continued employment or service with the Issuer through each such date.
--- Signature ---
/s/ /s/ Stefanie C. Fleischmann, as attorney-in-fact for William J. Tanimoto (2026-06-25)
