Nazar M. Khan - 18 May 2026 Form 4 Insider Report for TERAWULF INC. (WULF)

Reporting relationship: Chief Technology Officer, Director
Issuer ticker: WULF
Reported as of: 18 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 20 May 2026, 20:25:51 UTC
Prior SEC filing: 08 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Nazar M. Khan

Key filing fact

Nazar M. Khan filed Form 4 for TERAWULF INC. (WULF) on 20 May 2026.

Key facts

This page summarizes Nazar M. Khan's Form 4 filing for TERAWULF INC. (WULF).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 20 May 2026, 20:25.

Change

Previous filing in this sequence was filed on 08 May 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001877476 Primary reporting owner

Khan Nazar M.

Relationship: Chief Technology Officer, Director
Address: C/O TERAWULF INC., 9 FEDERAL STREET, EASTON
Signature: /s/ Nazar M. Khan
Signature date: 20 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

WULF transaction

Common stock, $0.001 par value per share

Options Exercise

Transaction value
Shares: +817,634
Change %: +74%
Price
Shares after: 1,921,743
Date: 18 May 2026
Ownership: Direct
Footnotes: F1

WULF transaction

Common stock, $0.001 par value per share

Disposed to Issuer

Transaction value
Shares: -452,151
Change %: -24%
Price
Shares after: 1,469,592
Date: 18 May 2026
Ownership: Direct
Footnotes: F2

WULF holding

Common stock, $0.001 par value per share

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 14,323,523
Date: 18 May 2026
Ownership: By The Nazar M. Khan Revocable Trust
Footnotes: F3

WULF holding

Common stock, $0.001 par value per share

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 7,269,019
Date: 18 May 2026
Ownership: By Lake Harriet Holdings LLC
Footnotes: F4

WULF holding

Common stock, $0.001 par value per share

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 4,019,787
Date: 18 May 2026
Ownership: By Various Trusts
Footnotes: F5

WULF holding

Common stock, $0.001 par value per share

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 414,939
Date: 18 May 2026
Ownership: By Yaqeen I Trust
Footnotes: F6

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

WULF transaction Derivative

Performance-Based Restricted Stock Units

Options Exercise

Transaction value
Shares: -817,634
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 18 May 2026
Ownership: Direct
Underlying class: Common stock, $0.001 par value per share
Underlying amount: 817,634
Exercise price
Footnotes: F1, F7

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 7 footnotes

Footnote F1

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.

Footnote F2

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.

Footnote F3

By The Nazar M. Khan Revocable Trust ("Khan Revocable Trust"). The Reporting Person is the sole trustee of the Khan 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 Khan Trust. Accordingly, pursuant to the regulations promulgated under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), the Reporting Person may be deemed to be a beneficial owner of the shares of Common Stock held for the account of the Khan Revocable Trust.

Footnote F4

By Lake Harriet Holdings, LLC ("Lake Harriet Holdings"). The Khan Revocable Trust is the sole member of Lake Harriet Holdings. The Reporting Person is the sole trustee of the Khan Revocable Trust and may be deemed to have the power to direct the voting and disposition of the shares of Common Stock beneficially owned by the Khan Revocable Trust. Accordingly, pursuant to the regulations promulgated under Section 13(d) of the Exchange Act, the Reporting Person may be deemed to be a beneficial owner of the shares of Common Stock held for the account of the Khan Revocable Trust.

Footnote F5

By various trusts. The Reporting Person may be deemed to beneficially own the shares of Common Stock held by such trusts. The Reporting Person disclaims beneficial ownership of the Common Stock except to the extent of his pecuniary interest therein, and the inclusion of the Common Stock in this report shall not be deemed an admission of beneficial ownership of all of the reported Common Stock for purposes of Section 16 of the Exchange Act, or for any other purpose.

Footnote F6

By Yaqeen I Trust. The Reporting Person may be deemed to beneficially own the Shares held by Yaqeen I Trust. The Reporting Person disclaims beneficial ownership of the Shares except to the extent of his pecuniary interest therein, and the inclusion of the Shares in this report shall not be deemed an admission of beneficial ownership of all of the reported Shares for purposes of Section 16 of the Securities Exchange Act, or for any other purpose.

Footnote F7

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