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TeraWulf (NASDAQ: WULF) CEO nets shares after PSU vesting and tax withholding

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

TERAWULF INC. director and CEO Paul B. Prager reported compensation-related equity activity involving performance-based restricted stock units that vested upon achievement of specified performance goals. He exercised 981,162 performance stock units, each converting into one share of common stock.

To cover taxes, 542,582 shares were disposed of to the issuer through a net settlement election, a non-market transaction. Following these transactions, Prager directly owns 1,101,020 shares of common stock, in addition to indirect holdings through entities such as Riesling Power LLC with 33,554,688 shares and Beowulf E&D Holdings Inc. with 4,415,852 shares.

Positive

  • None.

Negative

  • None.
Insider Prager Paul B.
Role Chief Executive Officer
Type Security Shares Price Value
Exercise Performance-Based Restricted Stock Units 981,162 $0.00 --
Exercise Common stock, $0.001 par value per share 981,162 $0.00 --
Disposition Common stock, $0.001 par value per share 542,582 $0.00 --
holding Common stock, $0.001 par value per share -- -- --
holding Common stock, $0.001 par value per share -- -- --
holding Common stock, $0.001 par value per share -- -- --
holding Common stock, $0.001 par value per share -- -- --
holding Common stock, $0.001 par value per share -- -- --
Holdings After Transaction: Performance-Based Restricted Stock Units — 1,962,323 shares (Direct, null); Common stock, $0.001 par value per share — 1,643,602 shares (Direct, null); Common stock, $0.001 par value per share — 33,554,688 shares (Indirect, By Riesling Power LLC)
Footnotes (1)
  1. 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. By Riesling Power LLC ("Riesling Power"). The Paul B. Prager Revocable Trust ("Prager Revocable Trust") is the sole member of Riesling Power. The Reporting Person is the sole trustee of the Prager Revocable Trust and may be deemed to have the power to direct the voting and disposition of the shares of common stock, par value $0.001 per share ("Common Stock") beneficially owned by the Prager Revocable Trust. Accordingly, pursuant to the regulations promulgated under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), Mr. Paul B. Prager may be deemed to be a beneficial owner of the shares of Common Stock held for the account of the Prager Revocable Trust. 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 By Heorot Power Holdings LLC ("Heorot"). The Reporting Person is the sole manager of Heorot and, as a result, may be deemed to beneficially own the shares of the Common Stock held by Heorot. 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 By Stammtisch Investments LLC ("Stammtisch"). The Reporting Person is the sole manager of Stammtisch and, as a result, may be deemed to beneficially own the shares of Common Stock held by Stammtisch. The Reporting Person disclaims beneficial ownership of such shares of Common Stock except to the extent of his pecuniary interest therein, and the inclusion of such shares of Common Stock in this report shall not be deemed an admission of beneficial ownership of all of the reported shares of Common Stock for purposes of Section 16 of the Exchange Act, or for any other purpose. By Allin WULF LLC ("Allin"). The Reporting Person is the sole manager of Allin and, as a result, may be deemed to beneficially own the shares of the Common Stock held by Allin. 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. 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.
Performance stock units exercised 981,162 units Converted into common stock upon achievement of performance goals
Shares disposed for taxes 542,582 shares Returned to issuer via net settlement to cover tax withholding
Direct common shares after transactions 1,101,020 shares Direct holdings of Paul B. Prager following Form 4 transactions
Riesling Power LLC holdings 33,554,688 shares Indirect TERAWULF common stock held via Riesling Power LLC
Beowulf E&D Holdings Inc. holdings 4,415,852 shares Indirect TERAWULF common stock held via Beowulf E&D Holdings Inc.
Stammtisch Investments LLC holdings 1,100,000 shares Indirect TERAWULF common stock held via Stammtisch Investments LLC
Allin WULF LLC holdings 141,726 shares Indirect TERAWULF common stock held via Allin WULF LLC
Heorot Power Holdings LLC holdings 5,000 shares Indirect TERAWULF common stock held via Heorot Power Holdings LLC
performance stock units financial
"The performance stock units vested in accordance with their terms upon the achievement"
Performance stock units are a type of company award that grants employees shares of stock only if certain performance goals are met. They motivate employees to work toward specific company achievements, aligning their interests with those of shareholders. For investors, they can influence a company's future stock supply and reflect management’s confidence in reaching key targets.
net settlement financial
"The disposition is due to withholding to cover taxes, as a result of the Reporting Person's election of net settlement"
beneficially own financial
"may be deemed to beneficially own the shares of the Common Stock held by E&D Holdings"
Beneficially own means having the economic rights and risks of a security—such as the right to receive dividends, sell the shares, or profit from price changes—whether or not your name appears on the official share register. Think of it like renting a car: you use it and reap the benefits even if the title lists someone else. Investors care because beneficial ownership determines who truly controls value, must be disclosed under securities rules, and can signal potential influence or trading activity that affects a stock’s price.
pecuniary interest financial
"disclaims beneficial ownership of such shares of the Common Stock except to the extent of his pecuniary interest therein"
contingent right financial
"Each performance stock unit represents a contingent right to receive one share"
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Prager Paul B.

(Last)(First)(Middle)
C/O TERAWULF INC.
9 FEDERAL STREET

(Street)
EASTON MARYLAND 21601

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
TERAWULF INC. [ WULF ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Chief Executive Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
04/24/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common stock, $0.001 par value per share04/24/2026M981,162A(1)1,643,602D
Common stock, $0.001 par value per share04/24/2026D542,582D(2)1,101,020D
Common stock, $0.001 par value per share33,554,688IBy Riesling Power LLC(3)
Common stock, $0.001 par value per share4,415,852IBy Beowulf E&D Holdings Inc.(4)
Common stock, $0.001 par value per share5,000IBy Heorot Power Holdings LLC(5)
Common stock, $0.001 par value per share1,100,000IBy Stammtisch Investments LLC(6)
Common stock, $0.001 par value per share141,726IBy Allin Wulf LLC(7)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Performance-Based Restricted Stock Units(8)04/24/2026M981,162 (1) (1)Common stock, $0.001 par value per share981,162(9)1,962,323D
Explanation of Responses:
1. 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.
2. 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.
3. By Riesling Power LLC ("Riesling Power"). The Paul B. Prager Revocable Trust ("Prager Revocable Trust") is the sole member of Riesling Power. The Reporting Person is the sole trustee of the Prager Revocable Trust and may be deemed to have the power to direct the voting and disposition of the shares of common stock, par value $0.001 per share ("Common Stock") beneficially owned by the Prager Revocable Trust. Accordingly, pursuant to the regulations promulgated under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), Mr. Paul B. Prager may be deemed to be a beneficial owner of the shares of Common Stock held for the account of the Prager Revocable Trust.
4. 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
5. By Heorot Power Holdings LLC ("Heorot"). The Reporting Person is the sole manager of Heorot and, as a result, may be deemed to beneficially own the shares of the Common Stock held by Heorot. 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
6. By Stammtisch Investments LLC ("Stammtisch"). The Reporting Person is the sole manager of Stammtisch and, as a result, may be deemed to beneficially own the shares of Common Stock held by Stammtisch. The Reporting Person disclaims beneficial ownership of such shares of Common Stock except to the extent of his pecuniary interest therein, and the inclusion of such shares of Common Stock in this report shall not be deemed an admission of beneficial ownership of all of the reported shares of Common Stock for purposes of Section 16 of the Exchange Act, or for any other purpose.
7. By Allin WULF LLC ("Allin"). The Reporting Person is the sole manager of Allin and, as a result, may be deemed to beneficially own the shares of the Common Stock held by Allin. 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.
8. Each performance stock unit represents a contingent right to receive one share of the Issuer's common stock, $0.001 par value per share.
9. 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.
Remarks:
/s/ Paul B. Prager04/24/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider equity transactions did TERAWULF (WULF) CEO Paul Prager report?

Paul B. Prager reported the vesting and exercise of 981,162 performance stock units into common shares and the disposition of 542,582 shares to the issuer for tax withholding, leaving 1,101,020 shares held directly plus substantial indirect holdings through various entities.

How many TERAWULF (WULF) performance stock units vested for the CEO?

A total of 981,162 performance stock units vested for Paul B. Prager, each representing a contingent right to receive one TERAWULF common share. These units vested upon achieving specified performance goals between grant and the third anniversary of January 2, 2026, subject to continued service.

Was the TERAWULF (WULF) CEO’s share disposition an open-market sale?

No, the 542,582-share disposition by Paul B. Prager was not an open-market sale. Footnotes state it resulted from tax withholding under a net settlement election related to vested performance stock units, meaning shares were returned to the issuer to satisfy tax obligations.

What are Paul Prager’s direct TERAWULF (WULF) share holdings after these transactions?

After the reported transactions, Paul B. Prager directly holds 1,101,020 TERAWULF common shares. This figure reflects both the exercise of 981,162 performance stock units and the 542,582 shares disposed of back to the issuer for tax withholding under the net settlement arrangement.

What indirect TERAWULF (WULF) holdings are associated with entities linked to the CEO?

Entities associated with Paul B. Prager report substantial indirect TERAWULF holdings, including 33,554,688 shares held by Riesling Power LLC and 4,415,852 shares held by Beowulf E&D Holdings Inc., alongside smaller positions in Allin WULF LLC, Stammtisch Investments LLC, and Heorot Power Holdings LLC.

How are TERAWULF (WULF) performance stock units structured for the CEO?

Each performance stock unit represents a contingent right to receive one TERAWULF common share. Vesting depends on meeting specified performance goals between grant and the third anniversary of January 2, 2026, and requires Paul B. Prager’s continued employment or service through each relevant date.