TERAWULF INC. (WULF) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-08-01 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: TERAWULF INC. (WULF) CIK: 0001083301 --- Reporting Owner --- Name: Langlais Kerri M. CIK: 0001877257 Role: Director, Officer (Chief Strategy Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Common stock, $0.001 par value per share Date: 2026-08-01 | Code: M (Exercise of derivative) Shares: +500,000 Shares Owned After: 4,656,881 | Ownership: D (Direct) Footnotes: [F1] The Reporting Person received restricted stock units which vested in accordance with their terms upon the first anniversary of August 1, 2025, as reflected in this Form 4, subject to the Reporting Person's continued employment or service with the Issuer through such date. [Transaction #2] Security: Common stock, $0.001 par value per share Date: 2026-08-03 | Code: D (Sale to issuer) Shares: -276,500 Shares Owned After: 4,380,381 | Ownership: D (Direct) Footnotes: [F2] The disposition is due to withholding to cover taxes, as a result of the Reporting Person's election of net settlement with regard to the vesting of restricted stock units, which vested on August 1, 2026, as reflected in this Form 4. --- Derivative Transactions --- [Transaction #1] Security: Restricted Stock Units Date: 2026-08-01 | Code: M (Exercise of derivative) Shares: -500,000 Shares Owned After: 1,000,000 | Ownership: D (Direct) Footnotes: [F3] 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 restricted stock units vested upon the first anniversary of August 1, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date. The remaining restricted stock units will vest ratably upon the second and third anniversaries of August 1, 2025, respectively, subject to the Reporting Person's continued employment or service with the Issuer through each such date. [F4] The restricted stock units vested upon the first anniversary of August 1, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date. The remaining restricted stock units will vest ratably upon the second and third anniversaries of August 1, 2025, respectively, subject to the Reporting Person's continued employment or service with the Issuer through each such date. [F4] The restricted stock units vested upon the first anniversary of August 1, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date. The remaining restricted stock units will vest ratably upon the second and third anniversaries of August 1, 2025, respectively, subject to the Reporting Person's continued employment or service with the Issuer through each such date. --- Holdings --- [Holding #1] Security: Common stock, $0.001 par value per share Ownership: I (Indirect) --- Footnotes (Complete Index) --- F1: The Reporting Person received restricted stock units which vested in accordance with their terms upon the first anniversary of August 1, 2025, as reflected in this Form 4, subject to the Reporting Person's continued employment or service with the Issuer through such date. F2: The disposition is due to withholding to cover taxes, as a result of the Reporting Person's election of net settlement with regard to the vesting of restricted stock units, which vested on August 1, 2026, as reflected in this Form 4. F3: 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 restricted stock units vested upon the first anniversary of August 1, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date. The remaining restricted stock units will vest ratably upon the second and third anniversaries of August 1, 2025, respectively, subject to the Reporting Person's continued employment or service with the Issuer through each such date. --- Signature --- /s/ /s/ Kerri M. Langlais (2026-08-03)