Terawulf

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-03-05 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: TERAWULF INC. (WULF) CIK: 0001083301 --- Reporting Owner --- Name: Bucella Michael C. CIK: 0001915351 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common stock, $0.001 par value per share Date: 2026-03-05 | Code: P (Open market purchase) Shares: +654 | Price: $15.31 Total Value: $10,012.74 Shares Owned After: 270,783 | Ownership: D (Direct) [Transaction #2] Security: Common stock, $0.001 par value per share Date: 2026-03-06 | Code: P (Open market purchase) Shares: +679 | Price: $14.80 Total Value: $10,049.20 Shares Owned After: 271,462 | Ownership: D (Direct) [Transaction #3] Security: Common stock, $0.001 par value per share Date: 2026-03-09 | Code: P (Open market purchase) Shares: +752 | Price: $13.31 Total Value: $10,009.12 Shares Owned After: 272,214 | Ownership: D (Direct) --- Signature --- /s/ /s/ Stefanie C. Fleischmann, as attorney-in-fact for Michael C. Bucella (2026-03-09)