Nazar M. Khan - 29 Sep 2026 Form 4 Insider Report for TERAWULF INC. (WULF)

Reporting relationship: Chief Technology Officer, Director
Issuer ticker: WULF
Reported as of: 29 Sep 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 29 Sep 2026, 21:18:33 UTC
Prior SEC filing: 11 Sep 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 29 Sep 2026.

Key facts

This page summarizes Nazar M. Khan's Form 4 filing for TERAWULF INC. (WULF).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 29 Sep 2026, 21:18.

Change

Previous filing in this sequence was filed on 11 Sep 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: 29 Sep 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: +666,667
Change %: +133333%
Price
Shares after: 667,167
Date: 29 Sep 2026
Ownership: Direct
Footnotes: F1

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: 29 Sep 2026
Ownership: By Various Trusts
Footnotes: F2

WULF holding

Common stock, $0.001 par value per share

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 414,939
Date: 29 Sep 2026
Ownership: By Yaqeen I Trust
Footnotes: F3

WULF holding

Common stock, $0.001 par value per share

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 15,125,948
Date: 29 Sep 2026
Ownership: By The Nazar M. Khan Revocable Trust
Footnotes: F4, F5

WULF holding

Common stock, $0.001 par value per share

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 7,935,686
Date: 29 Sep 2026
Ownership: By Lake Harriet Holdings LLC
Footnotes: F6

Reported derivative securities

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

WULF transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -666,667
Change %: -33%
Price
Shares after: 1,333,333
Date: 29 Sep 2026
Ownership: Direct
Underlying class: Common stock, $0.001 par value per share
Underlying amount: 666,667
Exercise price
Footnotes: F7, F8

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 8 footnotes

Footnote F1

The Reporting Person received restricted stock units which vested in accordance with their terms, as amended in the manner described below in Footnote 8 of this Form 4, on September 29, 2026, subject to the Reporting Person's continued employment or service with TeraWulf Inc. (the "Issuer") through such date.

Footnote F2

By various trusts. The Reporting Person may be deemed to beneficially own the shares of the Issuer's common stock, $0.001 par value per share ("Common Stock") held by such trusts. The Reporting Person disclaims beneficial ownership of the shares of Common Stock except to the extent of his pecuniary interest therein, and the inclusion of the 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 Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

Footnote F3

By Yaqeen I Trust. The Reporting Person may be deemed to beneficially own the shares of Common Stock held by Yaqeen I Trust. The Reporting Person disclaims beneficial ownership of the shares of Common Stock except to the extent of his pecuniary interest therein, and the inclusion of the 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.

Footnote F4

Reflects prior transfers of (i) 1,469,092 shares of the Issuer's Common Stock from the Reporting Person's direct holdings to the Khan Revocable Trust (as defined below) on August 11, 2026 and (ii) 666,667 shares of the Issuer's Common Stock from the Khan Revocable Trust to Lake Harriet Holdings (as defined below) on September 16, 2026, in each case that were exempt pursuant to Rule 16a-13 under the Exchange Act.

Footnote F5

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 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 F6

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 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 Lake Harriet Holdings.

Footnote F7

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

Footnote F8

The restricted stock units were scheduled to vest upon the first anniversary of August 1, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date. On July 31, 2026, the Reporting Person and the Issuer mutually agreed to defer vesting of the initial tranche of restricted stock units until September 29, 2026, 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.