X0508 4 2024-06-27 0 0001083301 TERAWULF INC. WULF 0001877257 Langlais Kerri M. 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 2024-06-27 4 M 0 140000 A 2402199 D Common stock, $0.001 par value per share 2024-07-01 4 D 0 77420 D 2324779 D Common stock, $0.001 par value per share 864701 I By Langlais Family 2021 GST Trust Performance-Based Restricted Stock Units 2024-06-27 4 M 0 140000 D Common stock, $0.001 par value per share 140000 0 D The Reporting Person received 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 9, 2024, as reflected in this Form 4, subject to the Reporting Person's continued employment or service with the Issuer through such date. 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 performance stock units, which vested on June 27, 2024, as reflected in this Form 4. Each performance stock unit represents a contingent right to receive one share of the Issuer's common stock, $0.001 par value per share. 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 9, 2024, subject to the Reporting Person's continued employment or service with the Issuer through such date. /s/ Kerri M. Langlais 2024-07-01