Paul B. Prager - 22 Sep 2026 Form 4 Insider Report for TERAWULF INC. (WULF)

Reporting relationship: Chief Executive Officer, Director
Issuer ticker: WULF
Reported as of: 22 Sep 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 23 Sep 2026, 09:03:40 UTC
Prior SEC filing: 28 Aug 2026
Source filing: View source filing
Reporting owner signature: /s/ Paul B. Prager

Key filing fact

Paul B. Prager filed Form 4 for TERAWULF INC. (WULF) on 23 Sep 2026.

Key facts

This page summarizes Paul B. Prager's Form 4 filing for TERAWULF INC. (WULF).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 23 Sep 2026, 09:03.

Change

Previous filing in this sequence was filed on 28 Aug 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 0001877255 Primary reporting owner

Prager Paul B.

Relationship: Chief Executive Officer, Director
Address: C/O TERAWULF INC., 9 FEDERAL STREET, EASTON
Signature: /s/ Paul B. Prager
Signature date: 23 Sep 2026

Reported derivative securities

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

WULF transaction Derivative

Forward sale contract (obligation to sell)

Other

Transaction value
Shares: +3,000,000
Change %
Price
Shares after: 3,000,000
Date: 22 Sep 2026
Ownership: By Riesling Power LLC
Underlying class: Common stock, $0.001 par value per share
Underlying amount: 3,000,000
Exercise price
Footnotes: F1, F2

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

On September 22, 2026, Riesling Power LLC ("Riesling Power") entered into a prepaid variable share forward contract / loan facility (the "Contract") of approximately 14 months duration with an unaffiliated dealer with a pledge of up to a maximum of 3,000,000 shares of common stock, par value $0.001 per share ("Common Stock"), of TeraWulf Inc. The Contract can be settled in cash or Common Stock and/or refinanced, at Riesling Power's option. Pursuant to the Contract, Riesling Power received a cash payment / loan from the dealer and pledged 3,000,000 shares of Common Stock (the "Pledged Shares"). Riesling Power retains dividend and voting rights in the Pledged Shares during the term of the pledge.

Footnote F2

The Paul B. Prager Revocable Trust ("Prager Revocable Trust") is the sole member of Riesling Power. Paul B. Prager (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 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 Reporting Person may be deemed to be a beneficial owner of the shares of Common Stock held for the account of the Prager Revocable Trust.