STOCK TITAN

Terawulf (WULF) CSO has 500,000 RSUs vest, 276,500 shares withheld

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Terawulf Inc. director and Chief Strategy Officer Kerri M. Langlais reported equity compensation activity. On August 1, 2026, 500,000 restricted stock units vested and were settled into 500,000 shares of common stock. In connection with this vesting, 276,500 shares were disposed of to the issuer to cover taxes under a net-settlement election. She also reports indirect ownership of 864,701 common shares held by the Langlais Family 2021 GST Trust and 1,000,000 restricted stock units remaining subject to future vesting based on continued service.

Positive

  • None.

Negative

  • None.
Insider Langlais Kerri M.
Role Chief Strategy Officer
Type Security Shares Price Value
Disposition Common stock, $0.001 par value per share F2 276,500 -- --
Exercise Restricted Stock Units F3, F4 500,000 -- --
Exercise Common stock, $0.001 par value per share F1 500,000 -- --
holding Common stock, $0.001 par value per share -- -- --
Holdings After Transaction: Restricted Stock Units — 1,000,000 shares (Direct); Common stock, $0.001 par value per share — 4,380,381 shares (Direct); Common stock, $0.001 par value per share — 864,701 shares (Indirect, By Langlais Family 2021 GST Trust)
Footnotes (4)
  1. F1. The Reporting Person received restricted stock units which vested in accordance with their terms upon the first anniversary of August 1, 2025, as reflected in this Form 4, subject to the Reporting Person's continued employment or service with the Issuer through such date.
  2. F2. The disposition is due to withholding to cover taxes, as a result of the Reporting Person's election of net settlement with regard to the vesting of restricted stock units, which vested on August 1, 2026, as reflected in this Form 4.
  3. F3. Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's common stock, $0.001 par value per share.
  4. F4. The restricted stock units vested upon the first anniversary of August 1, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date. The remaining restricted stock units will vest ratably upon the second and third anniversaries of August 1, 2025, respectively, subject to the Reporting Person's continued employment or service with the Issuer through each such date.
RSUs vested 500,000 units Restricted Stock Units vested and settled into common stock on August 1, 2026
Common shares acquired 500,000 shares Common stock received upon RSU vesting on August 1, 2026
Shares withheld for taxes 276,500 shares Disposition to issuer to cover tax withholding under net settlement
RSUs remaining after transaction 1,000,000 units Total restricted stock units reported following the derivative transaction
Indirect common shares 864,701 shares Indirectly held via Langlais Family 2021 GST Trust as of August 1, 2026
Restricted Stock Units financial
"The Reporting Person received restricted stock units which vested in accordance with their terms"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
Disposition to issuer financial
"transaction_code_description: Disposition to issuer"
net settlement financial
"election of net settlement with regard to the vesting of restricted stock units"
withholding to cover taxes financial
"The disposition is due to withholding to cover taxes"

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FAQ

What insider equity transaction did Terawulf (WULF) report for Kerri M. Langlais?

Terawulf reported that Chief Strategy Officer Kerri M. Langlais had 500,000 restricted stock units vest into an equal number of common shares on August 1, 2026, with related tax withholding and updated indirect share and RSU holdings disclosed.

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

The filing shows 276,500 shares of Terawulf common stock were disposed of to the issuer to cover tax obligations, following Langlais' election of net settlement in connection with the vesting of restricted stock units on August 1, 2026.

How many Terawulf (WULF) restricted stock units does Kerri M. Langlais hold after the transaction?

After the reported transaction, Langlais holds 1,000,000 restricted stock units. These units are scheduled to vest ratably on the second and third anniversaries of August 1, 2025, subject to her continued employment or service with Terawulf.

What indirect Terawulf (WULF) share holdings does Kerri M. Langlais report?

Langlais reports indirect ownership of 864,701 shares of Terawulf common stock. These shares are held through the Langlais Family 2021 GST Trust, as disclosed in the Form 4 holding entry dated August 1, 2026.

Are the Terawulf (WULF) restricted stock units subject to future vesting conditions?

Yes. The footnotes state that remaining restricted stock units will vest ratably on the second and third anniversaries of August 1, 2025, provided Langlais continues employment or service with Terawulf through each applicable vesting date.
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*
Langlais Kerri M.

(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 Strategy Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/01/2026
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 share08/01/2026M500,000A(1)4,656,881D
Common stock, $0.001 par value per share08/03/2026D276,500D(2)4,380,381D
Common stock, $0.001 par value per share864,701IBy Langlais Family 2021 GST Trust
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
Restricted Stock Units(3)08/01/2026M500,000 (4) (4)Common stock, $0.001 par value per share500,000(4)1,000,000D
Explanation of Responses:
1. The Reporting Person received restricted stock units which vested in accordance with their terms upon the first anniversary of August 1, 2025, as reflected in this Form 4, subject to the Reporting Person's continued employment or service with the Issuer through such date.
2. The disposition is due to withholding to cover taxes, as a result of the Reporting Person's election of net settlement with regard to the vesting of restricted stock units, which vested on August 1, 2026, as reflected in this Form 4.
3. Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's common stock, $0.001 par value per share.
4. The restricted stock units vested upon the first anniversary of August 1, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date. The remaining restricted stock units will vest ratably upon the second and third anniversaries of August 1, 2025, respectively, subject to the Reporting Person's continued employment or service with the Issuer through each such date.
Remarks:
/s/ Kerri M. Langlais08/03/2026
** 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)