Michael C. Bucella - 13 Nov 2025 Form 4 Insider Report for TERAWULF INC. (WULF)

Reporting relationship: Director
Issuer ticker: WULF
Reported as of: 13 Nov 2025
Net transaction value: -$199,822
SEC form: 4
Accepted by SEC: 11 Dec 2025, 18:38:34 UTC
Prior SEC filing: 24 Jun 2025
Next SEC filing: 04 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Stefanie C. Fleischmann, as attorney-in-fact for Michael C. Bucella

Key filing fact

Michael C. Bucella filed Form 4 for TERAWULF INC. (WULF) on 11 Dec 2025.

Key facts

This page summarizes Michael C. Bucella's Form 4 filing for TERAWULF INC. (WULF).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 11 Dec 2025, 18:38.

Change

Previous filing in this sequence was filed on 24 Jun 2025.
Current net transaction value: -$199,822.

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 0001915351 Primary reporting owner

Bucella Michael C.

Relationship: Director
Address: C/O TERAWULF INC., 9 FEDERAL STREET, EASTON
Signature: /s/ Stefanie C. Fleischmann, as attorney-in-fact for Michael C. Bucella
Signature date: 11 Dec 2025

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: +35,487
Change %: +16%
Price
Shares after: 262,780
Date: 09 Dec 2025
Ownership: Direct
Footnotes: F1

WULF transaction

Common stock, $0.001 par value per share

Purchase

Transaction value: $50,178
Shares: +4,178
Change %: +1.6%
Price: $12.01
Shares after: 266,958
Date: 13 Nov 2025
Ownership: Direct
Footnotes: F2

Reported derivative securities

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

WULF transaction Derivative

Series A Convertible Preferred Stock

Options Exercise

Transaction value: $250,000
Shares: -250
Change %: -100%
Price: $1000.00
Shares after: 0
Date: 09 Dec 2025
Ownership: Direct
Underlying class: Common stock, $0.001 par value per share
Underlying amount: 35,487
Exercise price
Footnotes: F1

^* 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

As of the date of the event requiring the filing of this report, the 250 shares of Series A Convertible Preferred Stock (the "Preferred Stock") were converted into 35,487 shares of common stock, par value $0.001 per share, via a mandatory conversion by the Issuer of all of the shares of its Preferred Stock pursuant to Sec. 10(c) of the Certificate of Designations of the Preferred Stock, at a conversion price of $10.00 per share of Preferred Stock, as previously disclosed on the Issuer's current report on Form 8-K filed on November 25, 2025.

Footnote F2

The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $11.80 - $12.03, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the Issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.