STOCK TITAN

Terawulf (WULF) CEO nets shares after 981K performance unit vesting

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

Rhea-AI Filing Summary

TERAWULF INC. Chief Executive Officer Paul B. Prager reported the vesting and conversion of 981,161 performance-based restricted stock units into common shares. These units vested upon achieving specified performance goals, subject to his continued service through the third anniversary of January 2, 2026.

In connection with this vesting, 542,582 common shares were disposed of to the issuer to cover tax obligations under a net settlement election, and the remaining shares increased his direct holdings to 1,761,479 common shares. Separate entries show indirect holdings through entities such as Riesling Power LLC, Beowulf E&D Holdings Inc., Heorot Power Holdings LLC, Stammtisch Investments LLC, and Allin WULF LLC, where he may be deemed a beneficial owner but generally disclaims ownership beyond his pecuniary interest.

Positive

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Insider Prager Paul B.
Role Chief Executive Officer
Type Security Shares Price Value
Exercise Performance-Based Restricted Stock Units 981,161 $0.00 --
Exercise Common stock, $0.001 par value per share 981,161 $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 — 0 shares (Direct, null); Common stock, $0.001 par value per share — 2,304,061 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.
Performance units exercised 981,161 units Performance-based restricted stock units converted to common stock
Shares withheld for taxes 542,582 shares Disposition to issuer to cover tax obligations on vesting
Direct holdings after transaction 1,761,479 shares Common stock held directly following vesting and tax withholding
Riesling Power LLC holdings 33,554,688 shares Common stock held indirectly via Riesling Power LLC
Beowulf E&D Holdings Inc. holdings 4,415,852 shares Common stock held indirectly via Beowulf E&D Holdings Inc.
Heorot Power Holdings LLC holdings 5,000 shares Common stock held indirectly via Heorot Power Holdings LLC
Stammtisch Investments LLC holdings 1,100,000 shares Common stock held indirectly via Stammtisch Investments LLC
Allin WULF LLC holdings 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"
beneficial owner financial
"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"
A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.
pecuniary interest financial
"The Reporting Person disclaims beneficial ownership of such shares of the Common Stock except to the extent of his pecuniary interest therein"
Section 16 regulatory
"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"
Section 16 is a U.S. securities law rule that governs the trading and disclosure obligations of company insiders — typically officers, directors and large shareholders — to promote transparency and deter unfair profit-taking. It requires insiders to publicly report their stock trades and allows companies or the issuer to reclaim quick, short-term profits from certain insider trades, like a scoreboard and a refund policy that help investors see and limit possible insider advantage.
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)
05/18/2026
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 share05/18/2026M981,161A(1)2,304,061D
Common stock, $0.001 par value per share05/18/2026D542,582D(2)1,761,479D
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)05/18/2026M981,161 (1) (1)Common stock, $0.001 par value per share981,161$00D
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.
Remarks:
/s/ Paul B. Prager05/20/2026
** 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) report for CEO Paul B. Prager?

TERAWULF reported that CEO Paul B. Prager had 981,161 performance-based restricted stock units convert into common stock. This reflects long-term incentive compensation vesting after specified performance goals were achieved and service conditions through the third anniversary of January 2, 2026.

How many TERAWULF (WULF) shares were withheld for taxes in this Form 4?

The filing shows a disposition of 542,582 common shares back to the issuer to cover tax obligations. This resulted from Prager’s election of net settlement when the performance stock units vested according to their terms and performance conditions.

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

After the vesting and related tax withholding disposition, Paul B. Prager directly holds 1,761,479 shares of TERAWULF common stock. This figure reflects his position following the exercise of 981,161 performance-based units and the return of shares to cover taxes.

Which entities hold indirect TERAWULF (WULF) shares associated with Paul B. Prager?

Indirect holdings are reported through Riesling Power LLC, Beowulf E&D Holdings Inc., Heorot Power Holdings LLC, Stammtisch Investments LLC, and Allin WULF LLC. Prager may be deemed a beneficial owner through managerial or trustee roles but generally disclaims ownership beyond his pecuniary interest.

How many TERAWULF (WULF) shares are held by Riesling Power LLC in this Form 4?

Riesling Power LLC is shown holding 33,554,688 TERAWULF common shares. The Paul B. Prager Revocable Trust is the sole member of Riesling Power, and Prager may be deemed to direct voting and disposition of these shares under applicable beneficial ownership rules.

What does each TERAWULF performance stock unit represent in this filing?

Each performance stock unit represents a contingent right to receive one share of TERAWULF common stock. The units vest only upon achievement of specified performance goals and continued employment or service through the relevant dates outlined in the award’s terms.