TERAWULF INC.

TERAWULF INC.

PROXY STATEMENT

Annual Meeting of Stockholders of TeraWulf Inc. to be held on June 9, 2026

Some Questions You May Have Regarding This Proxy Statement

Why did I receive a Notice of Internet Availability of Proxy Materials instead of a full set of proxy materials?

The Board of Directors (the “Board of Directors”) of TeraWulf Inc. (the “Company”) is soliciting proxies for our 2026 Annual Meeting of Stockholders (the “Annual Meeting”). The Annual Meeting will be held in a virtual-only format, on Tuesday, June 9, 2026, at 11:00 A.M., Eastern Time.

As a holder of shares of our Common Stock, par value $0.001 per share (“Common Stock”) as of the close of business on April 13, 2026, which is the record date (the “Record Date”) fixed by the Board of Directors, you are invited to attend the Annual Meeting and are entitled and encouraged to vote your shares on the proposals described in this proxy statement.

The information included in this proxy statement relates to the proposals to be voted on at the Annual Meeting, the voting process, the compensation of directors and our most highly paid executive officers, and other matters. Our Annual Report to stockholders for the fiscal year ended December 31, 2025 is available to review with this proxy statement.

In accordance with the rules of the SEC, we have elected to furnish our proxy materials, including this Proxy statement and our Annual Report, primarily via the internet. The notice containing instructions on how to access our proxy materials is first being mailed on or about April 28, 2026 to all stockholders entitled to vote at the Annual Meeting. All stockholders will have the ability to access the proxy materials on the website referred to in the notice: www.proxypush.com/WULF. Stockholders may also request to receive proxy materials for this Annual Meeting or future meetings of stockholders in printed form by mail or electronically by e-mail by following the instructions contained in the notice. We encourage stockholders to take advantage of the availability of our proxy materials on the internet to help reduce the environmental impact and cost of our annual meetings of stockholders.

What proposals will be voted on at the Annual Meeting?

The three proposals scheduled to be voted on at the Annual Meeting are:

1. The election of Paul Prager, Nazar Khan, Kerri Langlais, Michael Bucella, Walter Carter, Amanda Fabiano, Catherine Motz, Steven Pincus and Lisa Prager to the Company’s Board of Directors for one-year terms;

2. An advisory vote to approve the compensation of our named executive officers (“Say-on-Pay”); and

3. The ratification of the appointment of Deloitte & Touche LLP (“Deloitte”) as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026.

In addition, such other business as may properly come before the Annual Meeting, or any adjournment or postponement thereof, may be voted on.

Who can vote at the Annual Meeting?

Holders of Common Stock as of the close of business on the Record Date are entitled to attend and to vote on all items properly presented at the Annual Meeting.

Stockholder of Record: Shares Registered in Your Name. If your shares are registered directly in your name with our transfer agent, EQ Shareowner Services (“EQ”), you are a stockholder of record and may vote your shares by proxy or at the Annual Meeting.

Beneficial Owner: Shares Registered in the Name of a Broker or Bank. If your shares are held in an account with a broker, bank or other nominee, you are the beneficial owner of shares held in “street name.” You have the right to direct your nominee on how to vote your shares in accordance with the instructions provided. You may attend the Annual Meeting; however, you must obtain a legal proxy from your nominee in order to vote your shares at the meeting.

How do I vote?

Stockholder of Record: Shares Registered in Your Name. If you are a stockholder of record, you may vote in any one of the following ways:

•You may vote at the Annual Meeting. If you or your proxy wish to vote at the Annual Meeting, you or your proxy will need to attend the Annual Meeting by visiting www.proxypush.com/WULF. To be admitted to the virtual meeting, eligible persons must first register at anytime before the Annual Meeting by visiting register.proxypush.com/WULF on their smartphone, tablet or computer. You will then be required to enter your 16-digit control number included in your voting instruction form or proxy card. If you encounter any difficulty accessing the Annual Meeting or during the Annual Meeting, please call the technical support number posted on the Annual Meeting Website. The technical support number will be available at least 15 minutes before the start of the meeting. If you vote in advance online, by phone or by mailing in a proxy card, you may still attend the Annual Meeting and vote during the meeting, but, in that case, only the votes you enter during the meeting will count. Even if you plan to attend the Annual Meeting, we recommend that you also vote either by telephone, by Internet, or by mail so that your vote will be counted if you ultimately decide not, or are unable, to attend.

•You may vote by mail. If you requested and received printed proxy materials, complete, sign and date the proxy card that accompanies this proxy statement and return it promptly in the postage-prepaid envelope provided (if you received printed proxy materials). Your completed, signed and dated proxy card must be received prior to the Annual Meeting.

•You may vote by telephone. To vote over the telephone, call toll-free 1-866-883-3382 from any touch-tone telephone and follow the instructions. Have your Notice or proxy card available when you call. You will be asked to provide the control number from your Notice or proxy card. Telephone voting is available 24 hours a day, 7 days a week, until 11:59 p.m., Eastern Time, on June 9, 2026.

•You may vote via the Internet. To vote via the Internet, go to www.proxypush.com/WULF to complete an electronic proxy card (have your Notice or proxy card in hand when you visit the website). You will be asked to provide the control number from your Notice or proxy card. Internet voting is available 24 hours a day, 7 days a week, until 11:59 p.m., Eastern Time, on June 9, 2026.

Beneficial Owner of Shares Held in “Street Name”: Shares Registered in the Name of a Broker, Bank or Other Nominee. If you are a beneficial owner of shares held of record by a broker, bank or other nominee, you will receive voting instructions from your broker, bank or other nominee. You must follow the voting instructions provided by your broker, bank or other nominee in order to instruct your broker, bank or other nominee on how to vote your shares. Beneficial owners of shares should generally be able to vote by returning the voting instruction card received from their broker, bank or other nominee to such nominee, or by telephone or via the Internet. However, the availability of telephone or Internet voting will depend on the voting process of your broker, bank or other nominee. As discussed above, if you are a beneficial owner, you may not vote your shares electronically at the Annual Meeting unless you obtain a legal proxy from your broker, bank or other nominee. We therefore urge you to vote in advance of the Annual Meeting using the voting instructions provided by your broker, bank or other nominee.

How can I participate during the Annual Meeting?

The Annual Meeting will be conducted via live webcast. Stockholders may attend, vote and submit questions by visiting www.proxypush.com/WULF.

Questions may be submitted in advance or during the meeting through the platform. The Company reserves the right to exclude questions that are not pertinent or are inappropriate and may group similar questions to avoid duplication. Appropriate questions will be addressed during the live Q&A session, subject to time constraints.

Can I change my vote or revoke my proxy?

Stockholder of Record: Shares Registered in Your Name. If you are a stockholder of record, you can change your vote or revoke your proxy by:

•Providing another proxy, or using any of the available methods for voting, with a later date;

•Notifying the Company’s Secretary in writing before the Annual Meeting that you wish to revoke your proxy; or

•Voting at the Annual Meeting.

Beneficial Owner of Shares Held in “Street Name”: Shares Registered in the Name of a Broker, Bank or Other Nominee. If you are the beneficial owner of your shares, you must contact the broker, bank or other nominee holding your shares and follow their instructions to change your vote or revoke your proxy.

Who is soliciting my vote?

The Company is soliciting your proxy on behalf of the Board of Directors. The Company will bear the cost of soliciting proxies and will reimburse brokerage firms and others for expenses involved in forwarding proxy materials to beneficial owners or soliciting their execution. In addition to solicitations by mail, the Company, through its directors and employees, may solicit proxies in person, by telephone or by electronic means. Such directors and employees will not receive any special remuneration for these efforts.

What is the effect of giving a proxy?

Proxies are solicited by and on behalf of our Board of Directors. The persons named in the proxy have been designated as proxies for the Annual Meeting by our Board of Directors. When proxies are properly dated, executed and returned, the shares represented by such proxies will be voted at the Annual Meeting in accordance with the instructions of the stockholder on such proxy. If no specific instructions are given, however, the shares will be voted in accordance with the recommendations of our Board of Directors on the proposals as described below and, if any other matters are properly brought before the Annual Meeting, the shares will be voted in accordance with the proxies’ judgment.

What are my voting rights?

Each share of Common Stock is entitled to one vote on each matter properly presented at the Annual Meeting and each share of Series A Preferred Stock is entitled to vote with the Common Stock on an as-converted basis, voting together as a single class. At the close of business on the Record Date, there were 435,381,960 shares of Common Stock outstanding. A list of all record stockholders as of the Record Date will be available during ordinary business hours at the Company’s principal place of business located at 9 Federal Street, Easton, MD 21601, from Friday, May 29, 2026, at least 10 days before the Annual Meeting, and will also be available for inspection at the Annual Meeting.

How does the Board of Directors recommend that I vote?

The Board of Directors recommends that you vote:

•FOR the election of each of the director nominees;

•FOR the approval, on a non-binding, advisory basis, of the compensation of our named executive officers; and

•FOR the ratification of the appointment of Deloitte & Touche LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026.

What is the quorum requirement for the Annual Meeting?

A quorum is the minimum number of shares required to be present or represented at the Annual Meeting for the meeting to be properly held. The presence, represented in person or by proxy, of the holders of a majority of the voting power of our outstanding Common Stock entitled to vote at the Annual Meeting will constitute a quorum to transact business at the Annual Meeting. Abstentions, “WITHHOLD” votes and “broker non-votes” are counted as present and entitled to vote for purposes of determining a quorum. If there is no quorum, the chair of the meeting may adjourn the meeting to another time or place.

What are broker non-votes?

Broker non-votes occur when a beneficial owner of shares held in “street name” does not give instructions to the broker, bank or other nominee, as applicable, as to how to vote on matters deemed “non-routine” and there is at least one “routine” matter to be voted upon at the Annual Meeting. The beneficial owner of shares held in “street name” is entitled to give voting instructions to the broker, bank or other nominee holding the shares. If the beneficial owner does not provide voting instructions, the broker, bank or other nominee can still vote the shares with respect to matters that are considered to be “routine,” but not with respect to “non-routine” matters. In the event that a broker, bank or other nominee votes shares on the “routine” matters but does not vote shares on the “non-routine” matters, those shares will be treated as broker non-votes with respect to the “non-routine” proposals. Accordingly, if you own shares through a nominee, such as a broker or bank, please be sure to instruct your nominee how to vote to ensure that your vote is counted on each of the proposals.

What matters are considered “routine” and “non-routine”?

The ratification of the appointment of Deloitte & Touche LLP as our independent registered public accounting firm for our fiscal year ending December 31, 2026 (Proposal No. 3) is considered “routine.” The election of directors (Proposal No. 1) and the non-binding, advisory vote to approve the compensation of our named executive officers (Proposal No. 2) are considered “non-routine.”

What are the effects of abstentions and broker non-votes?

An abstention represents a stockholder’s affirmative choice to decline to vote on a proposal. If a stockholder indicates on its proxy card that it wishes to abstain from voting its shares, or if a broker, bank or other nominee causes abstentions to be recorded for shares, these shares will be considered present and entitled to vote at the Annual Meeting. As a result, abstentions will be counted for purposes of determining the presence or absence of a quorum and will also count as votes against a proposal in cases where approval of the proposal requires the affirmative vote of a majority of the voting power of the shares present or represented by proxy and entitled to vote on such proposal at the Annual Meeting (Proposal Nos. 2 and 3). However, because the outcome of Proposal No. 1 (election of directors) will be determined by a plurality vote, you may only vote “FOR” or “WITHHOLD” authority to vote for each of the nominees. If you “WITHHOLD” authority to vote with respect to one or more director nominees, your vote will have no effect on the election of such nominees.

Broker non-votes will be counted for purposes of calculating whether a quorum is present at the Annual Meeting. Broker non-votes will not be counted for purposes of determining the number of votes cast on a proposal. Therefore, a broker non-vote will make a quorum more readily attainable but will not otherwise affect the outcome of the vote on any of the proposals.

What is the voting requirement to approve each of the proposals?

Proposal No. 1: Election of Directors. Directors are elected by a plurality of the votes cast. For each director nominee, you may vote (i) “FOR” or (ii) “WITHHOLD.” Because the outcome of this proposal will be determined by a plurality vote, shares voted “WITHHOLD” will not prevent a director nominee from being elected as a director. Broker non-votes will not affect the outcome of voting on this proposal.

Proposal No. 2: “Say-On-Pay.” The approval, on a non-binding, advisory basis, of the compensation of our named executive officers requires the affirmative vote of the majority of voting power of the shares present or represented by proxy at the Annual Meeting and entitled to vote thereon. You may vote “FOR,” “AGAINST” or “ABSTAIN” on this proposal. Abstentions will count towards the quorum requirement for the Annual Meeting and will have the same effect as a vote against the proposal. Broker non-votes will not affect the outcome of voting on this proposal. While the results of this advisory vote are non-binding, the Board of Directors values the opinions of our stockholders and will consider the outcome of the vote, along with other relevant factors, in deciding whether any actions are necessary to address the concerns raised by the vote and when making future compensation decisions for our named executive officers.

Proposal No. 3: Ratification of Appointment of Deloitte & Touche LLP. The ratification of the appointment of Deloitte & Touche LLP requires the affirmative vote of a majority of the voting power of the shares present or represented by proxy at the Annual Meeting and entitled to vote thereon. You may vote “FOR,” “AGAINST” or “ABSTAIN” on this proposal. Abstentions will count towards the quorum requirement for the Annual Meeting and will have the same effect as a vote against the proposal. As it is a “routine” proposal, we do not expect broker non-votes on this proposal.

Who will count the votes?

A representative of EQ will tabulate the votes and act as inspector of elections.

May I vote confidentially?

Yes. Our policy is to keep your vote confidential, except as otherwise legally required, to allow for the tabulation and certification of votes and to facilitate proxy solicitation.

What if additional matters are presented at the Annual Meeting?

We do not know of any business to be considered at the Annual Meeting other than the proposals described in this proxy statement. If any other business is presented at the Annual Meeting, your properly executed proxy gives authority to Paul Prager, the Chairman of our Board of Directors, and Stefanie C. Fleischmann, our Chief Legal Officer and Secretary, to vote on such matters at their discretion.

How is solicitation being made?

We are making this solicitation and as such, the cost of solicitation of proxies will be borne by us. Our directors, officers and employees may make solicitation, personally or by telephone, email or fax. The Notice of Annual Meeting, the proxy statement and proxy card will be distributed to beneficial owners of common stock through brokers, custodians, nominees and other like parties, and we expect to reimburse such parties for their charges and expenses. We have retained D.F. King, a proxy solicitor, to assist us in the solicitation of proxies for the Annual Meeting. The Company will pay D.F. King $13,000 plus reimbursement for its reasonable out-of-pocket expenses. The Company will indemnify D.F. King and its affiliates against certain claims, liabilities, losses, damages and expenses for its services as our proxy solicitor.

We may supplement the original solicitation of proxies by mail with solicitation by telephone, and other means by directors, officers and/or employees of the Company and by Internet, phone or other means by D.F. King. We will not pay any additional compensation to these individuals, other than D.F. King, for any such services.

Where can I find the voting results from the Annual Meeting?

We will announce preliminary voting results at the Annual Meeting and will publish final results in a Current Report on Form 8-K that we will file with the Securities and Exchange Commission (the “SEC”) within four (4) business days after the date the Annual Meeting concludes.

How can I obtain information about the Company?

A copy of our Annual Report on Form 10-K for the fiscal year ended December 31, 2025 (our “Annual Report”) is available on our website at www.investors.terawulf.com. Stockholders may also request a copy by contacting the Company’s Chief Legal Officer at 9 Federal Street, Easton, MD 21601.