X0609 4 2026-04-24 0 0001083301 TERAWULF INC. WULF 0001877257 Langlais Kerri M. false C/O TERAWULF INC. 9 FEDERAL STREET EASTON MD 21601 1 1 0 0 Chief Strategy Officer 0 Common stock, $0.001 par value per share 2026-04-24 4 M 0 327054 A 4045353 D Common stock, $0.001 par value per share 2026-04-24 4 D 0 180860 D 3864493 D Performance-Based Restricted Stock Units 2026-04-24 4 M 0 327054 D Common stock, $0.001 par value per share 327054 654108 D The performance stock units vested in accordance with their terms upon the achievement of specified performance goals between the grant date and the third anniversary of January 2, 2026, subject to the Reporting Person's continued employment or service with the Issuer through each such date. The disposition is due to withholding to cover taxes, as a result of the Reporting Person's election of net settlement of performance stock units, which vested in accordance with their terms upon the achievement of specified performance goals between the grant date and the third anniversary of January 2, 2026, subject to the Reporting Person's continued employment or service with the Issuer through each such date. Each performance stock unit represents a contingent right to receive one share of the Issuer's Common Stock. The remaining performance stock units will vest in accordance with their terms upon the achievement of specified performance goals between the grant date and the third anniversary of January 2, 2026, subject to the Reporting Person's continued employment or service with the Issuer through each such date. /s/ Kerri M. Langlais 2026-04-24