X0508 4 2025-11-13 0 0001083301 TERAWULF INC. WULF 0001915351 Bucella Michael C. C/O TERAWULF INC. 9 FEDERAL STREET EASTON MD 21601 1 0 0 0 0 Common stock, $0.001 par value per share 2025-12-09 4 M 0 35487 A 262780 D Common stock, $0.001 par value per share 2025-11-13 4 P 0 4178 12.01 A 266958 D Series A Convertible Preferred Stock 2025-12-09 4 M 0 250 1000 D Common stock, $0.001 par value per share 35487 0 D As of the date of the event requiring the filing of this report, the 250 shares of Series A Convertible Preferred Stock (the "Preferred Stock") were converted into 35,487 shares of common stock, par value $0.001 per share, via a mandatory conversion by the Issuer of all of the shares of its Preferred Stock pursuant to Sec. 10(c) of the Certificate of Designations of the Preferred Stock, at a conversion price of $10.00 per share of Preferred Stock, as previously disclosed on the Issuer's current report on Form 8-K filed on November 25, 2025. The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $11.80 - $12.03, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the Issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above. /s/ Stefanie C. Fleischmann, as attorney-in-fact for Michael C. Bucella 2025-12-11