STOCK TITAN

TeraWulf (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. Chief Executive Officer Paul B. Prager reported performance-based equity vesting and related share movements. He exercised 981,162 performance stock units, each settling into one share of common stock at a price of $0.0000 per share, following achievement of specified performance goals through the third anniversary of January 2, 2026.

To cover taxes from this vesting, 542,582 shares were returned to the issuer through a net-settlement election, leaving 1,865,482 shares of common stock held directly after the transactions. The filing also notes indirect holdings through entities including Allin Wulf LLC, Stammtisch Investments LLC, Heorot Power Holdings LLC, Beowulf E&D Holdings Inc., and Riesling Power LLC.

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 — 981,161 shares (Direct, null); Common stock, $0.001 par value per share — 1,865,482 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 to common stock at $0.0000 per share on May 6, 2026
Shares withheld for taxes 542,582 shares Returned to issuer via net settlement on vested PSUs
Direct common shares after transactions 1,865,482 shares Direct ownership following May 6, 2026 Form 4 transactions
Remaining performance stock units 981,161 units Unvested PSUs subject to performance goals through third anniversary of Jan 2, 2026
Riesling Power LLC indirect holding 33,554,688 shares Common stock held indirectly via Riesling Power LLC
Beowulf E&D Holdings Inc. indirect holding 4,415,852 shares Common stock held indirectly via Beowulf E&D Holdings Inc.
Stammtisch Investments LLC indirect holding 1,100,000 shares Common stock held indirectly via Stammtisch Investments LLC
Allin Wulf LLC indirect holding 141,726 shares Common stock held indirectly via Allin Wulf LLC
performance stock units financial
"The performance stock units vested in accordance with their terms upon the achievement of specified performance goals"
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"
withholding to cover taxes financial
"The disposition is due to withholding to cover taxes, as a result of the Reporting Person's election of net settlement"
beneficial ownership financial
"may be deemed to beneficially own the shares of the Common Stock held by E&D Holdings"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
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 of the Issuer's common stock"
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)
05/06/2026
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 share05/06/2026M981,162A(1)1,865,482D
Common stock, $0.001 par value per share05/06/2026D542,582D(2)1,322,900D
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)05/06/2026M981,162 (1) (1)Common stock, $0.001 par value per share981,162(9)981,161D
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. Prager05/08/2026
** 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 transaction did TERAWULF (WULF) CEO Paul B. Prager report?

Paul B. Prager reported the vesting and exercise of 981,162 performance stock units into common stock at $0.0000 per share. These units vested after meeting specified performance goals tied to dates through the third anniversary of January 2, 2026.

How many TERAWULF (WULF) shares were used to cover taxes in this Form 4?

The filing shows 542,582 shares of TERAWULF common stock were returned to the issuer to cover tax obligations. This resulted from Prager’s election of net settlement on vested performance stock units, rather than paying taxes in cash.

What are Paul B. Prager’s direct TERAWULF (WULF) common stock holdings after the reported transactions?

After exercising performance stock units and returning shares for tax withholding, Paul B. Prager directly holds 1,865,482 shares of TERAWULF common stock. This figure reflects his position following the May 6, 2026 transactions described in the Form 4.

Does the TERAWULF (WULF) Form 4 indicate remaining unvested performance stock units for the CEO?

Yes. The filing indicates 981,161 performance stock units remain outstanding after the transaction. These units will vest only if specified performance goals are met between the grant date and the third anniversary of January 2, 2026.

Were the reported TERAWULF (WULF) share dispositions open-market sales?

No. The Form 4 describes the 542,582-share disposition as withholding to cover taxes from a net settlement of vested performance stock units. It does not represent an open-market sale but a return of shares to the issuer for tax obligations.