WULF · Terawulf Inc.

Shares of common stock issued in lieu of cash retainers accrued since the beginning of the second fiscal quarter of 2026, at a price of $24.70 per share, the closing price as of June 30, 2026

Shares of common stock issued in lieu of cash retainers accrued since the beginning of the second fiscal quarter of 2026, at a price of $24.70 per share, the closing price as of June 30, 2026.

Shares of common stock issued in lieu of cash retainers accrued since the beginning of the second fiscal quarter of 2026, at a price of $24.70 per share, the closing price as of June 30, 2026

The Price reported in Column 4 is a weighted average price. The shares of common stock, par value $0.001 per share ("Common Stock") were sold in multiple transactions at a price ranging from $26.5800 to $27.5799, inclusive. The reporting person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of TeraWulf Inc. or to TeraWulf Inc., upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth above.

By Beowulf E&D Holdings Inc. ("E&D Holdings"). The Reporting Person is the sole manager of E&D Holdings and, as a result, may be deemed to beneficially own the shares of the Common Stock held by E&D Holdings. The Reporting Person disclaims beneficial ownership of such shares of the Common Stock except to the extent of his pecuniary interest therein, and the inclusion of such shares of the Common Stock in this report shall not be deemed an admission of beneficial ownership of all of the reported shares of the Common Stock for purposes of Section 16 of the Exchange Act, or for any other purpose

The Reporting Person received Restricted Stock Units which vested in accordance with their terms upon the first anniversary of June 24, 2025, as reported in this Form 4, subject to the Reporting Person's continued employment or service with the Issuer through such date.

Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's common stock, $0.001 par value per share.

The remaining Restricted Stock Units will vest in accordance with their terms on each of the second and third anniversaries of June 24, 2025, subject to the Reporting Person's continued employment or service with the Issuer through each such date.

The Restricted Stock Units vested in accordance with their terms upon the first anniversary of June 24, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date.

Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock, $0.001 par value per share.

The restricted stock units vested upon the first anniversary of June 23, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date.

The Reporting Person received restricted stock units which vested upon the first anniversary of June 23, 2025, as reported in this Form 4, subject to the Reporting Person's continued employment or service with the Issuer through such date.

The Reporting Person received restricted stock units which vested upon the first anniversary of June 23, 2025, as reported in this Form 4, subject to the Reporting Person's continued employment or service with the Issuer through such date.

Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock, $0.001 par value per share.

The restricted stock units will vest upon the first anniversary of June 23, 2026, subject to the Reporting Person's continued employment or service with the Issuer through such date.

Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock, $0.001 par value per share.

The restricted stock units will vest upon the first anniversary of June 23, 2026, subject to the Reporting Person's continued employment or service with the Issuer through such date.

The Reporting Person received restricted stock units which vested upon the first anniversary of June 23, 2025, as reported in this Form 4, subject to the Reporting Person's continued employment or service with the Issuer through such date.

Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock, $0.001 par value per share.

The restricted stock units will vest upon the first anniversary of June 23, 2026, subject to the Reporting Person's continued employment or service with the Issuer through such date.

The Reporting Person received restricted stock units which vested upon the first anniversary of June 23, 2025, as reported in this Form 4, subject to the Reporting Person's continued employment or service with the Issuer through such date.

Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock, $0.001 par value per share.

The restricted stock units vested upon the first anniversary of June 23, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date.

Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock, $0.001 par value per share.

The restricted stock units vested upon the first anniversary of June 23, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date.

Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock, $0.001 par value per share.

The restricted stock units will vest upon the first anniversary of June 23, 2026, subject to the Reporting Person's continued employment or service with the Issuer through such date.

Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock, $0.001 par value per share.

The restricted stock units vested upon the first anniversary of June 23, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date.

The Reporting Person received restricted stock units which vested upon the first anniversary of June 23, 2025, as reported in this Form 4, subject to the Reporting Person's continued employment or service with the Issuer through such date.

Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock, $0.001 par value per share.

The restricted stock units will vest upon the first anniversary of June 23, 2026, subject to the Reporting Person's continued employment or service with the Issuer through such date.

Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock, $0.001 par value per share.

The restricted stock units will vest upon the first anniversary of June 23, 2026, subject to the Reporting Person's continued employment or service with the Issuer through such date.

Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock, $0.001 par value per share.

The restricted stock units vested upon the first anniversary of June 23, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date.

The Reporting Person received restricted stock units which vested upon the first anniversary of June 23, 2025, as reported in this Form 4, subject to the Reporting Person's continued employment or service with the Issuer through such date.

Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock, $0.001 par value per share.

The restricted stock units vested upon the first anniversary of June 23, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date.

The Price reported in Column 4 is a weighted average price. The shares of Common Stock were sold in multiple transactions at a price ranging from $25.9500 to $26.9499, inclusive. The reporting person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of TeraWulf Inc. or to TeraWulf Inc., upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth above.

By Beowulf E&D Holdings Inc. ("E&D Holdings"). The Reporting Person is the sole manager of E&D Holdings and, as a result, may be deemed to beneficially own the shares of the Common Stock held by E&D Holdings. The Reporting Person disclaims beneficial ownership of such shares of the Common Stock except to the extent of his pecuniary interest therein, and the inclusion of such shares of the Common Stock in this report shall not be deemed an admission of beneficial ownership of all of the reported shares of the Common Stock for purposes of Section 16 of the Exchange Act, or for any other purpose

The Price reported in Column 4 is a weighted average price. The shares of Common Stock were sold in multiple transactions at a price ranging from $24.9500 to $25.9499, inclusive. The reporting person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of TeraWulf Inc. or to TeraWulf Inc., upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth above.

By Beowulf E&D Holdings Inc. ("E&D Holdings"). The Reporting Person is the sole manager of E&D Holdings and, as a result, may be deemed to beneficially own the shares of the Common Stock held by E&D Holdings. The Reporting Person disclaims beneficial ownership of such shares of the Common Stock except to the extent of his pecuniary interest therein, and the inclusion of such shares of the Common Stock in this report shall not be deemed an admission of beneficial ownership of all of the reported shares of the Common Stock for purposes of Section 16 of the Exchange Act, or for any other purpose

The Price reported in Column 4 is a weighted average price. The shares of common stock, par value $0.001 per share ("Common Stock") were sold in multiple transactions at a price ranging from $24.2700 to $25.2699, inclusive. The reporting person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of TeraWulf Inc. or to TeraWulf Inc., upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth above.

By Beowulf E&D Holdings Inc. ("E&D Holdings"). The Reporting Person is the sole manager of E&D Holdings and, as a result, may be deemed to beneficially own the shares of the Common Stock held by E&D Holdings. The Reporting Person disclaims beneficial ownership of such shares of the Common Stock except to the extent of his pecuniary interest therein, and the inclusion of such shares of the Common Stock in this report shall not be deemed an admission of beneficial ownership of all of the reported shares of the Common Stock for purposes of Section 16 of the Exchange Act, or for any other purpose

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 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 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.

Each performance stock unit represents a contingent right to receive one share of the Issuer's Common Stock.

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.

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.

Each performance stock unit represents a contingent right to receive one share of the Issuer's Common Stock.

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 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.

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, $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 2, 2026, subject to the Reporting Person's continued employment or service with the Issuer through each such date.

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.

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.

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 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 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.

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.

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 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.

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.

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, $0.001 par value per share.

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.

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.

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.

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.