[424B7] CLEANSPARK, INC. Prospectus Filed Pursuant to Rule 424(b)(7)

Rhea-AI Filing Summary

CleanSpark, Inc. is registering up to 1,788,834 shares of common stock for resale by the selling stockholder named in the prospectus supplement. Sales may occur from time to time on Nasdaq, in private transactions, or through underwriters, dealers, or agents as described under Plan of Distribution. The company will not receive any proceeds from these sales.

The registration is pursuant to a Registration Rights Agreement and an Equity Purchase Agreement, each dated October 27, 2025, with Project Tiger HoldCo, LLC. As context, shares outstanding were 297,935,782 as of October 28, 2025. CleanSpark’s common stock trades on Nasdaq under “CLSK”; the last reported sale price was $19.15 per share on October 28, 2025.

The filing notes CleanSpark’s bitcoin mining operations and its AI/HPC hosting plans, including rights to approximately 271 acres in Texas and long-term power agreements totaling 285 MW to develop a next‑generation data center campus.

Filed Pursuant to Rule 424(b)(7)
Registration No. 333-276409

PROSPECTUS SUPPLEMENT

(to Prospectus dated January 5, 2024)

1,788,834 Shares of Common Stock

This prospectus supplement relates to the proposed resale from time to time of up to 1,788,834 shares of our common stock, par value $0.001 per share, by the selling stockholder identified herein. These shares of common stock may be offered and sold by the selling stockholder named in this prospectus supplement from time to time in accordance with the provisions set forth under “Plan of Distribution.”

The selling stockholder may offer and sell the shares of common stock offered by this prospectus supplement from time to time on any exchange or over-the-counter market on which the shares of common stock are listed or traded. They may also offer and sell the shares of common stock in private sales or through one or more underwriters, dealers or agents, or through a combination of these methods. The selling stockholder may sell the shares of common stock at prevailing market prices, at prices related to such market prices or at prices negotiated with buyers. The selling stockholder will be responsible for any commissions due to brokers, dealers or agents. We will bear all costs, expenses and fees in connection with the registration of the shares of common stock. We will not receive any of the proceeds from the sale by the selling stockholder of the shares of common stock offered by this prospectus supplement.

We are registering these 1,788,834 shares of our common stock for sale by the selling stockholder named herein pursuant to that certain Registration Rights Agreement (the “Registration Rights Agreement”), dated as of October 27, 2025, by and among the Company, Project Tiger HoldCo, LLC (“HoldCo”), a Delaware limited liability company (which is the selling securityholder identified herein), and each other selling securityholder from time to time signatory thereto, and the Equity Purchase Agreement (the “Purchase Agreement”), dated as of October 27, 2025, by and among HoldCo, the Company and the other parties thereto.

Our common stock is listed on the Nasdaq Capital Market, or Nasdaq, under the symbol “CLSK.” On October 28, 2025, the last reported sale price of our common stock on Nasdaq was $19.15 per share.

Our principal executive offices are located at 10624 S. Eastern Ave., Suite A - 638, Henderson, Nevada 89052, and our telephone number is (702) 989-7692. Our website is located at www.cleanspark.com.

Investing in our common stock involves a high degree of risk. Before deciding whether to invest in our common stock, please read “Risk Factors” beginning on page S-4 of this prospectus supplement, in the accompanying prospectus and in the documents incorporated by reference in this prospectus supplement that we file with the Securities and Exchange Commission.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus supplement or the prospectus to which it relates. Any representation to the contrary is a criminal offense.

The date of this prospectus supplement is October 29, 2025

TABLE OF CONTENTS

Prospectus Supplement

		Page
ABOUT THIS PROSPECTUS SUPPLEMENT			S-1
SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS			S-2
THE COMPANY			S-3
RISK FACTORS			S-4
USE OF PROCEEDS			S-4
SELLING STOCKHOLDER			S-5
PLAN OF DISTRIBUTION			S-6
LEGAL MATTERS			S-8
EXPERTS			S-8
WHERE YOU CAN FIND MORE INFORMATION			S-8
INCORPORATION OF INFORMATION BY REFERENCE			S-9

Prospectus dated January 5, 2024

		Page
ABOUT THIS PROSPECTUS			1
WHERE YOU CAN FIND MORE INFORMATION; INCORPORATION BY REFERENCE			2
THE COMPANY			3
RISK FACTORS			3
SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS			4
USE OF PROCEEDS			4
DESCRIPTION OF CAPITAL STOCK			4
DESCRIPTION OF DEBT SECURITIES			9
DESCRIPTION OF WARRANTS			15
DESCRIPTION OF SUBSCRIPTION RIGHTS			17
DESCRIPTION OF UNITS			18
PLAN OF DISTRIBUTION			18
LEGAL MATTERS			21
EXPERTS			21

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ABOUT THIS PROSPECTUS SUPPLEMENT

This prospectus supplement and the accompanying prospectus are part of an automatic shelf registration statement on Form S-3 that we filed with the Securities and Exchange Commission (the “SEC”), as a “well-known seasoned issuer” as defined in Rule 405 under the Securities Act of 1933, as amended, or the Securities Act, using a “shelf” registration process. This document is in two parts. This part is the prospectus supplement, which describes the specific terms of this offering and also supplements and updates information contained or incorporated by reference in the accompanying prospectus. The other part is the accompanying prospectus, which provides you with a general description of our securities that may be offered from time to time, some of which does not apply to this offering. Generally, when we refer only to the prospectus, we are referring to the combined document consisting of this prospectus supplement and the accompanying prospectus, and, when we refer to the accompanying prospectus, we are referring to the base prospectus. If there is any inconsistency or conflict between the information contained in this prospectus supplement and the information contained in the accompanying prospectus or any document incorporated by reference therein filed prior to the date of this prospectus supplement, you should rely on the information in this prospectus supplement. Before purchasing any securities in this offering, you should read both this prospectus supplement and the accompanying prospectus (and any applicable free writing prospectuses that we may authorize for use in connection with this offering), together with any documents incorporated by reference herein and therein as described under the heading “Incorporation of Information by Reference,” in their entirety.

We further note that the representations, warranties and covenants made by us in any agreement that is filed as an exhibit to any document that is incorporated by reference herein were made solely for the benefit of the parties to such agreement, including, in some cases, for the purpose of allocating risk among the parties to such agreements, and should not be deemed to be a representation, warranty or covenant to you.

We have not, and the selling securityholder has not, authorized anyone to provide any information or to make any representations, other than those contained or incorporated by reference in this prospectus supplement and the accompanying prospectus or in any free writing prospectus prepared by or on behalf of us or to which we have referred you. We and the selling securityholder take no responsibility for, and provide no assurance as to the reliability of, any other information that others may give you. This prospectus supplement is an offer to sell only the shares of common stock offered hereby, and only under circumstances and in jurisdictions where it is lawful to do so. The information contained, or incorporated by reference, in this prospectus supplement and the accompanying prospectus, or in any free writing prospectus that we may authorize for use in connection with this offering, is assumed to be accurate only as of the respective dates thereof, regardless of its time of delivery or any sale of shares of our common stock. Our business, financial condition, results of operations and prospects may have changed since those dates.

This prospectus supplement and the accompanying prospectus do not constitute an offer to sell, or a solicitation of an offer to purchase, the securities offered by this prospectus supplement and the accompanying prospectus in any jurisdiction to or from any person to whom or from whom it is unlawful to make such offer or solicitation of an offer in such jurisdiction. The distribution of this prospectus supplement and the accompanying prospectus and the offering of the common stock in certain jurisdictions may be restricted by law. No action is being taken in any jurisdiction outside the United States to permit a public offering of the securities or possession or distribution of this prospectus supplement and the accompanying prospectus in that jurisdiction. Persons outside the United States who come into possession of this prospectus supplement and the accompanying prospectus must inform themselves about, and observe any restrictions relating to, the offering of the common stock and the distribution of this prospectus supplement and the accompanying prospectus applicable to that jurisdiction.

References to the “Company,” “we,” “our” and “us” in this prospectus supplement and the accompanying prospectus are to CleanSpark, Inc. and its consolidated subsidiaries, unless the context otherwise requires.

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CleanSpark^® and our logo are some of our trademarks used in this prospectus supplement. This prospectus supplement also includes trademarks, tradenames and service marks that are the property of other organizations. All trademarks, trade names and service marks appearing in this prospectus supplement or in the accompanying prospectus, including the documents incorporated by reference herein or therein, are the property of their respective owners. Use or display by us of other parties’ trademarks, trade dress or products is not intended to and does not imply a relationship with, or endorsements or sponsorship of, us by the trademark or trade dress owner. Solely for convenience, trademarks and trade names referred to in this prospectus supplement and the accompanying prospectus appear without the ^® and ^™ symbols, but those references are not intended to indicate, in any way, that we will not assert, to the fullest extent under applicable law, our rights or that the applicable owner will not assert its rights to these trademarks and trade names.

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus supplement, the accompanying prospectus and the documents incorporated by reference herein and therein contain “forward-looking statements” within the meaning of Section 27A of the Securities Act and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). These forward-looking statements may in some cases be identified by terminology such as “aim,” “anticipate,” “assume,” “believe,” “contemplate,” “continue,” “could,” “due,” “estimate,” “expect,” “goal,” “intend,” “may,” “objective,” “plan,” “predict,” “potential,” “positioned,” “seek,” “should,” “target,” “will,” “would” and other similar expressions that are predictions of or indicate future events and future trends, or the negative of these terms or comparable terminology. These forward-looking statements include, but are not limited to, statements regarding future operating results, potential risks pertaining to these future operating results, future plans or prospects, anticipated benefits of proposed (or future) acquisitions, dispositions and new facilities, growth, the capabilities and capacities of business operations, any financial or other guidance, expected capital expenditures and all statements that are not based on historical fact, but rather reflect our current expectations concerning future results and events. These forward-looking statements are based on management’s current expectations, estimates, forecasts, and projections about our business and the industry in which we operate, as well as the economy, trends and other future conditions, are subject to significant risks and uncertainties, and are subject to change based on various factors, some of which are beyond our control. Therefore, we can give no assurance that the results implied by these forward-looking statements will be realized. Furthermore, the inclusion of forward-looking statements should not be regarded as a representation by the Company or any other person that future events, plans or expectations contemplated by the Company will be achieved. The following important factors, among others, could affect future results and events, causing those results and events to differ materially from those expressed or implied in our forward-looking statements:

• our ability to achieve profitability, and to maintain profitability, in the future;

• high volatility in the value attributable to our business;

• the rapidly changing regulatory and legal environment in which we operate, which may lead to unknown future challenges to operating our business or which may subject our business to added costs and/or uncertainty regarding our ability to operate;

• the impacts of evolving global and U.S. trade policies and tariff regimes, including that there is uncertainty as to whether the Company will face materially increased tariff liability in respect of miners purchased since 2024 and in the future;

• the availability of financing opportunities, risks associated with economic conditions, dependence on management and conflicts of interest;

• economic dependence on regulated terms of service and power rates;

• dependency on continued growth in blockchain and bitcoin usage;

• our ability to realize the intended benefits of the acquisition consummated pursuant to the Equity Purchase Agreement;

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• our ability to execute on our current business strategy, including our ability to diversify and expand into the market for high-performance computing (“HPC”) solutions and data centers;

• our limited experience with respect to new markets we seek to enter, including the market for HPC and artificial intelligence (“AI”) services;

• our ability to keep pace with technology changes and competitive conditions;

• security and cybersecurity threats and hacks;

• our reliance on a third-party mining pool service provider for our mining revenue payouts;

• dependency on third parties to maintain our cold and hot wallets that hold our bitcoin;

• changes to bitcoin mining difficulty;

• our reliance on a limited number of key employees;

• changes in network and infrastructure;

• our ability to successfully integrate our newly acquired operations;

• our ability to execute on our business strategy;

• bitcoin halving;

• risks relating to our in-house function to trade bitcoin for our own account on the bitcoin we have mined, and hedge risk relating to our bitcoin holdings; and

• other risks and uncertainties discussed under the caption “Risk Factors” in documents incorporated by reference in this prospectus supplement and the accompanying prospectus.

For additional information about the risks, uncertainties and factors that could cause future results or events to differ materially from those expressed or implied in our forward-looking statements, please review the disclosure contained in this prospectus supplement and in the accompanying prospectus and our other filings made with the SEC. Potential investors are urged to consider these factors carefully in evaluating the forward-looking statements and to not place undue reliance on any forward-looking statements. Any forward-looking statement speaks only as of the date on which it is made. Except as expressly required under federal securities laws and the rules and regulations of the SEC, we expressly disclaim any intent or obligation to update or revise these forward-looking statements for any reason, whether written or oral, that may be made from time to time, whether as a result of new information, future events or changed circumstances or for any other reason after the date of such forward-looking statements.

THE COMPANY

Overview

Until recently, we have primarily been a bitcoin mining company. We independently own, lease and operate a large portfolio of data centers across the United States with locations in Georgia, Mississippi, Tennessee and Wyoming for a total contracted power capacity of approximately 1,312 megawatts (“MW”) as of October 28, 2025. We intend to continue our growth in these regions and are actively developing plans for additional capacity in Tennessee. We previously also had an independent data center operation in Massena, New York, subject to a hosting agreement that operated 50 MW, which expired on December 31, 2024. The parties commenced wind-down procedures upon expiration. All MW allocated to the Company have been vacated as of October 28, 2025. We have no intention to mine, purchase or hold any other crypto assets at this time or in the foreseeable future, and we did not hold any other crypto asset as of October 28, 2025.

We design our infrastructure to efficiently, profitably, and responsibly secure and support bitcoin, the world’s most recognized digital commodity. We cultivate trust and transparency among our employees, the communities where we operate, our public market stakeholders, and the people around the world who depend on bitcoin.

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AI & HPC Hosting

In addition to bitcoin mining, we have been actively pursuing opportunities to develop portions of our sites and power pipeline for AI and HPC hosting and leasing. The expansion of AI applications and the expected electricity requirements required for AI and HPC data centers make our data centers attractive to hyperscalers and other AI and HPC companies.

On October 29, 2025, we announced that we had acquired rights to approximately two hundred and seventy-one acres of land in Austin County, Texas and executed long-term power supply agreements totaling 285 megawatts to support the development of a next-generation data center campus (collectively, the “Transactions”), all pursuant to the Purchase Agreement. The Transactions position us to deliver scalable, resilient, and energy-efficient capacity to meet accelerating demand from AI, cloud, and enterprise workloads. Under the terms of the Purchase Agreement, we paid a combination of cash consideration and shares of the Company’s common stock at closing, plus additional cash consideration payable upon the occurrence of post-closing events.

We are currently exploring other opportunities to continue to expand some of our properties into HPC or AI data centers and to acquire properties for these purposes.

Corporate Information

Our principal executive offices are located at 10624 S. Eastern Ave., Suite A - 638, Henderson, Nevada 89052, and our telephone number is (702) 989-7692. Our website is located at www.cleanspark.com. Information contained on our website or that can be accessed through our website is not incorporated by reference into this prospectus supplement.

RISK FACTORS

Investing in our common stock involves a high degree of risk. Before you make an investment decision with respect to our common stock, you should consider carefully the risks discussed under the section captioned “Risk Factors” contained in our most recent Annual Report on Form 10-K and our Quarterly Reports for the quarters ended December 31, 2024, March 31, 2025, and June 30, 2025, which are incorporated by reference in this prospectus supplement, as well as those which may be disclosed in our Current Reports on Form 8-K, and other information included in any document that we file from time to time with the SEC after the date of this prospectus supplement that is incorporated by reference herein and other information contained or incorporated by reference in this prospectus supplement or the accompanying prospectus. If any of the events described in any such other document actually occur, our business, operating results, prospects or financial condition could be materially and adversely affected. The risks described below are not the only ones that we face. Additional risks not presently known to us or that we currently deem immaterial may also affect our business and operations.

USE OF PROCEEDS

The selling stockholder will receive all of the proceeds from the sale or other disposition of the shares of common stock covered by this prospectus supplement. We will not receive any of the proceeds from the sale or other disposition of the shares of common stock offered hereby. Pursuant to the Registration Rights Agreement, we are required to pay certain expenses in connection with the registration of the selling stockholder’s shares and to indemnify the selling stockholder against certain liabilities.

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SELLING STOCKHOLDER

This prospectus supplement relates to the offer and sale from time to time of up to an aggregate 1,788,834 shares of our common stock by the stockholder identified in the table below, who we refer to in this prospectus supplement as the “selling stockholder,” and its transferees, pledgees, donees, assignees or other successors (each also a selling stockholder for purposes of this prospectus supplement). The selling stockholder identified below may currently hold or acquire at any time shares of our common stock in addition to those registered hereby.

We are registering 1,788,834 shares of our common stock for sale by the selling stockholder named below pursuant to the Registration Rights Agreement and the Purchase Agreement. Pursuant to the Purchase Agreement, CleanSpark Data I, LLC acquired 100 percent of the authorized, issued and outstanding equity ownership interests in Project Tiger, LLC (“Tiger”), a Delaware limited liability company.

The percent of beneficial ownership for the selling stockholder is based on 297,935,782 shares of our common stock outstanding as of October 28, 2025. Beneficial ownership is determined in accordance with the rules of the SEC. These rules generally attribute beneficial ownership of securities to persons who possess sole or shared voting or dispositive power with respect to such securities.

The table below was prepared based on information provided by or on behalf of the selling stockholder, and we have not sought to verify such information. Except as disclosed elsewhere in this prospectus supplement, the accompanying base prospectus or the documents incorporated by reference herein, the selling stockholder does not have, and within the past three years has not had, any material relationship with us or any of our affiliates. Information concerning the selling stockholder may change from time to time and any changed information will be set forth in supplements to this prospectus supplement and accompanying base prospectus, if and when necessary.

The selling stockholder may sell, transfer or otherwise dispose of some or all of the shares of our common stock owned by it that are included in this prospectus supplement, but is not obligated to sell, transfer or otherwise dispose of any of them, pursuant to this prospectus supplement. In addition, the selling stockholder may sell, transfer or otherwise dispose of, at any time and from time to time, shares of our common stock it holds in transactions exempt from the registration requirements of the Securities Act of 1933, as amended (the “Securities Act”), including pursuant to Rule 144 under the Securities Act (when available). The table below assumes that the selling stockholder disposes of all shares of common stock covered by this prospectus supplement and does not acquire beneficial ownership of any additional shares of common stock.

The Selling Stockholder has indicated to us that it intends to distribute the shares of common stock it holds to its members or other equityholders pursuant the registration statement of which this prospectus supplement and the accompanying prospectus form a part, in accordance with the provisions set forth under “Plan of Distribution,” although the Selling Stockholder is not under any obligation to us to do so, and may otherwise dispose of the shares of common stock registered hereby in any method or combination of methods described in “Plan of Distribution.”

		Shares Beneficially Owned Prior to the Offering								Shares Offered Hereby				Shares Beneficially Owned After the Offering
Selling Stockholder		Number				%								Number				%
Project Tiger HoldCo, LLC(1)			1,788,834				*				1,788,834				—				—

* Represents beneficial ownership of less than one percent (1%) of shares outstanding.

(1) According to information provided by the selling stockholder, the selling stockholder is managed by its managing member, Priority Power Management, Inc. (“PPM Inc.”). PPM Inc. is managed by ISQ Skyline Holdings, Inc., which is in turn managed by ISQ Skyline Holdings (MidCo), Inc., which is managed by

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Skyline Holdings (Parent), LP (“Skyline Parent”). Skyline Parent is managed by Skyline Aggregator, L.P. (“Skyline Aggregator”). ISQ Holdings, LLC (“ISQ Holdings”) manages the general partners of the members of the indirect owners of Skyline Aggregator. Sadek Wahba and Gautam Bhandari are the members of ISQ Holdings, and each disclaims beneficial ownership of the shares except to the extent of their pecuniary interest therein. The business address of the selling stockholder is 2201 E. Lamar Blvd., Suite 275, Arlington, Texas 76006.

PLAN OF DISTRIBUTION

The selling stockholder may use any one or more of the following methods when selling our securities under this prospectus supplement:

• privately negotiated transactions;

• exchange distributions and/or secondary distributions;

• sales in the over-the-counter market;

• distributions by the selling stockholder to its general or limited partners, members, managers, affiliates, employees, directors or stockholders;

• ordinary brokerage transactions and transactions in which the broker solicits purchasers;

• broker-dealers may agree with us or the selling stockholder to sell a specified number of such securities at a stipulated price per share;

• a block trade (which may involve crosses) in which the broker or dealer so engaged will attempt to sell the securities as agent but may position and resell a portion of the block as principal to facilitate the transaction;

• purchases by a broker or dealer as principal and resale by such broker or dealer for its own account pursuant to this prospectus supplement;

• short sales and delivery of shares of our common stock to close out short positions;

• sales by broker-dealers of shares of our common stock that are loaned or pledged to such broker-dealers;

• as payment in kind for services rendered to the selling stockholder;

• through agents to the public or to institutional investors;

• directly to a limited number of purchasers;

• directly to institutional investors;

• a combination of any such methods of sale; and

• any other method permitted pursuant to applicable law.

A selling stockholder may also sell our shares of common stock under Rule 144 under the Securities Act, if available, or pursuant to other available exemptions from the registration requirements under the Securities Act, rather than pursuant to this prospectus supplement.

Pursuant to the Registration Rights Agreement, we will bear all fees and expenses incident to our obligation to register the shares of our common stock held by the selling stockholder.

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Shares covered by this prospectus supplement may be sold in one or more transactions at a fixed price or prices, which may be changed, or at:

• market prices prevailing at the time of any sale under this registration statement;

• prices related to market prices; or

• negotiated prices.

The selling stockholder may elect to make an in-kind distribution of its shares to its general or limited partners, members, managers, affiliates, employees, directors or stockholders. To the extent that such general or limited partners, members, managers, affiliates, employees, directors or stockholders are not affiliates of ours, such general or limited partners, members, managers, affiliates, employees, directors or stockholders would thereby receive freely tradeable shares pursuant to the distribution through this registration statement, subject in the case of “affiliates” of us, to certain limitations on resale.

The selling stockholder, or agents designated by it, may directly solicit, from time to time, offers to purchase the shares. The selling stockholder and any such agent may be deemed to be an “underwriter” as that term is defined in the Securities Act. To the extent required, any agents involved in the offer or sale of the shares and any commissions payable by the selling stockholder to these agents will be named and described in any applicable prospectus supplement. The agents may also be our customers or may engage in transactions with or perform services for us in the ordinary course of business.

If the selling stockholder utilizes a dealer in the sale of the shares in respect of which this prospectus supplement is delivered, the selling stockholder will sell those shares to the dealer, as principal. The dealer may then resell those shares to the public at varying prices to be determined by the dealer at the time of resale. The dealers may also be our or the selling stockholder’s customers or may engage in transactions with or perform services for us or the selling stockholder in the ordinary course of business.

Offers to purchase shares may be solicited directly by the selling stockholder and the sale thereof may be made by the selling stockholder directly to institutional investors or others, who may be deemed to be underwriters within the meaning of the Securities Act, with respect to any resale thereof.

We or the selling stockholder may agree to indemnify underwriters, dealers and agents who participate in the distribution of securities against certain liabilities to which they may become subject in connection with the sale of the shares, including liabilities arising under the Securities Act.

In connection with the sale of our common stock or interests therein, the selling stockholder may enter into hedging transactions with broker-dealers or other financial institutions, which may in turn engage in short sales of the common stock in the course of hedging the positions they assume. The selling stockholder may also sell shares of our common stock short and deliver these securities to close out their short positions, or loan or pledge the common stock to broker-dealers that in turn may sell these securities. In addition, the selling stockholder may enter into derivative transactions with third parties, or sell shares not covered by this prospectus supplement to third parties in privately negotiated transactions. In connection with those derivatives, the third parties may sell shares covered by this prospectus supplement, including in short sale transactions. If so, the third party may use shares pledged by the selling stockholder or borrowed from the selling stockholder or others to settle those sales or to close out any related open borrowings of stock, and may use securities received from us in settlement of those derivatives to close out any related open borrowings of stock. The third party in such sale transactions may be deemed to be an underwriter and, if not identified in this prospectus supplement, will be named in the applicable prospectus supplement (or a post-effective amendment), to the extent required.

In addition, the selling stockholder may otherwise loan or pledge shares to a financial institution or other third party that in turn may sell the shares short using this prospectus supplement and accompanying base prospectus. Such financial institution or other third party may transfer its economic short position to investors in our shares or in connection with a concurrent offering of other securities.

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The specific terms of any lock-up provisions in respect of any given offering will be described in any applicable prospectus supplement.

The underwriters, dealers and agents may engage in transactions with us or the selling stockholder, or perform services for us or the selling stockholder, in the ordinary course of business for which they receive compensation.

There can be no assurance that the selling stockholder will sell any or all of the shares of our common stock registered pursuant to the registration statement, of which this prospectus supplement and accompanying base prospectus form a part.

To the extent required, this prospectus supplement may be amended or supplemented from time to time to describe a specific plan of distribution. If required, we may add transferees, successors and donees by prospectus supplement in instances where the transferee, successor or donee has acquired its shares from holders named in this prospectus supplement after the date of this prospectus supplement.

LEGAL MATTERS

Katten Muchin Rosenman LLP is acting as counsel for the Company in connection with this offering. The validity of the common stock offered hereby will be passed upon for us by Holland & Hart LLP.

EXPERTS

The consolidated financial statements and schedule of the Company as of September 30, 2024 and for the year then ended and management’s assessment of the effectiveness of internal control over financial reporting as of September 30, 2024 incorporated by reference in this Prospectus Supplement have been so incorporated in reliance on the reports of BDO USA, P.C., an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting. The report on the effectiveness of internal control over financial reporting expresses an adverse opinion on the effectiveness of the Company’s internal control over financial reporting as of September 30, 2024.

The consolidated financial statements of the Company as of and for the year ended September 30, 2023, have been incorporated by reference herein in reliance on the report of MaloneBailey, LLP, our prior independent registered public accounting firm from 2018 to 2024. Each report is incorporated by reference herein, and upon the authority of said firms as experts in auditing and accounting.

WHERE YOU CAN FIND MORE INFORMATION

This prospectus supplement and the accompanying prospectus are part of the registration statement on Form S-3 we filed with the SEC under the Securities Act and do not contain all the information set forth in the registration statement. Whenever a reference is made in this prospectus supplement or the accompanying prospectus to any of our contracts, agreements or other documents, the reference may not be complete and you should refer to the exhibits to the registration statement or the exhibits to the reports or other documents incorporated by reference in this prospectus supplement and the accompanying prospectus for a copy of such contract, agreement or other document. We file annual, quarterly and current reports, proxy statements and other information with the SEC. Our public filings are available to the public on the SEC’s web site at http://www.sec.gov.

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INCORPORATION OF INFORMATION BY REFERENCE

The SEC allows us to “incorporate by reference” the information we file with them which means that we can disclose important information to you by referring you to those documents instead of having to repeat the information in this prospectus supplement and the accompanying prospectus. The information incorporated by reference is considered to be part of this prospectus supplement and the accompanying prospectus, and later information that we file with the SEC will automatically update and supersede this information. We incorporate by reference the documents listed below (SEC File No. 001-39187) and any future filings made with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act between the date of this prospectus supplement and the termination of this offering (other than Current Reports furnished under Item 2.02 or Item 7.01 of Form 8-K and exhibits filed on such form that are related to such items, unless otherwise indicated therein):

• our Annual Report on Form 10-K for the fiscal year ended September 30, 2024, filed with the SEC on December 3, 2024;

• our Quarterly Reports on Form 10-Q for the quarters ended December 31, 2024, March  31, 2025, and June 30, 2025, and filed with the SEC on February 6, 2025, May 8, 2025, and August 7, 2025, respectively;

• our Definitive Proxy Statement on Schedule 14A filed with the SEC on January  22, 2025 (solely to the extent incorporated by reference into Part III of our Annual Report on Form 10-K for the fiscal year ended September 30, 2024);

• our Current Reports on Form 8-K filed with the SEC on October 3, 2024, October  4, 2024, October  29, 2024, October  31, 2024, December  12, 2024, December  13, 2024, December  17, 2024, March  4, 2025, April  16, 2025, April  25, 2025, August  11, 2025, September  8, 2025, September  23, 2025, September  25, 2025, September  26, 2025 and October 29, 2025 (except that, with respect to each of the foregoing Current Reports, any portions thereof which are furnished and not filed shall not be deemed incorporated by reference into this prospectus supplement or the accompanying prospectus);

• the description of our common stock contained in our Exhibit 4.1 to our Annual Report on Form 10-K for the fiscal year ended September 30, 2024, including any amendment or report filed for the purpose of updating such description; and

• filings we made or will make with the SEC pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act after the date of the initial filing of the registration statement of which this prospectus supplement and the accompanying prospectus form a part and before the termination of the offering made by this prospectus supplement.

We will provide to each person, including any beneficial owner, to whom a prospectus supplement and accompanying prospectus is delivered, without charge upon written or oral request, a copy of any or all of the documents that are incorporated by reference into this prospectus supplement and the accompanying prospectus but not delivered with this prospectus supplement and the accompanying prospectus, including exhibits which are specifically incorporated by reference into such documents. Requests should be directed to CleanSpark, Inc., Attn: Investor Relations, 10624 S. Eastern Ave., Suite A - 638, Henderson, Nevada 89052, telephone number (702) 989-7693 or email ir@cleanspark.com.

A statement contained in a document incorporated by reference herein shall be deemed to be modified or superseded for purposes hereof to the extent that a statement contained herein or in any other subsequently filed document which also is or is deemed to be incorporated by reference herein modifies or supersedes such statement. Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this prospectus supplement or the accompanying prospectus. The modifying or superseding statement need not state that it has modified or superseded a prior statement or include any other information set forth in the document that it modifies or supersedes. The making of such a modifying or superseding statement shall not be deemed an admission for any purposes that the modified or superseded statement, when made,

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constituted a misrepresentation, an untrue statement of a material fact or an omission to state a material fact that was required to be stated or that was necessary to make a statement not misleading in light of the circumstances in which it was made. You should not assume that the information in this prospectus supplement, the accompanying prospectus or in the documents incorporated by reference is accurate as of any date other than the dates of those respective documents.

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PROSPECTUS

CleanSpark, Inc.

Common Stock

Preferred Stock

Debt Securities

Warrants

Units

Subscription Rights

We may offer and sell the securities identified above from time to time in one or more offerings. This prospectus provides you with a general description of the securities.

Each time we offer and sell securities, we will provide a supplement to this prospectus that contains specific information about the offering and the amounts, prices and terms of the securities. The supplement may also add, update or change information contained in this prospectus with respect to that offering. You should carefully read this prospectus, the applicable prospectus supplement, as well as the documents incorporated by reference herein or therein, before you invest in any of our securities.

We may offer and sell the securities described in this prospectus and any prospectus supplement to or through one or more underwriters, dealers and agents, or directly to purchasers, or through a combination of these methods. These securities also may be resold by selling securityholders. If any underwriters, dealers or agents are involved in the sale of any of the securities, their names and any applicable purchase price, fee, commission or discount arrangement between or among them will be set forth, or will be calculable from the information set forth, in the applicable prospectus supplement. See the sections of this prospectus entitled “About this Prospectus” and “Plan of Distribution” for more information. No securities may be sold without delivery of this prospectus and the applicable prospectus supplement describing the method and terms of the offering of such securities.

INVESTING IN OUR SECURITIES INVOLVES RISKS. SEE THE “RISK FACTORS” ON PAGE 3 OF THIS PROSPECTUS AND ANY SIMILAR SECTION CONTAINED IN THE APPLICABLE PROSPECTUS SUPPLEMENT OR IN THE DOCUMENTS INCORPORATED BY REFERENCE HEREIN CONCERNING FACTORS YOU SHOULD CONSIDER BEFORE INVESTING IN OUR SECURITIES.

Our common stock is listed on the Nasdaq Capital Market (“Nasdaq”) under the symbol “CLSK.” On January 4, 2024, the last reported sale price of our common stock on Nasdaq was $10.76 per share. The applicable prospectus supplement will contain information, where applicable, as to any other listing, if any, on Nasdaq or any other securities market or other securities exchange of the securities covered by the prospectus supplement.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.

The date of this prospectus is January 5, 2024    

TABLE OF CONTENTS

		Page
ABOUT THIS PROSPECTUS			1
WHERE YOU CAN FIND MORE INFORMATION; INCORPORATION BY REFERENCE			2
THE COMPANY			3
RISK FACTORS			3
SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS			4
USE OF PROCEEDS			4
DESCRIPTION OF CAPITAL STOCK			4
DESCRIPTION OF DEBT SECURITIES			9
DESCRIPTION OF WARRANTS			15
DESCRIPTION OF SUBSCRIPTION RIGHTS			17
DESCRIPTION OF UNITS			18
PLAN OF DISTRIBUTION			18
LEGAL MATTERS			21
EXPERTS			21

ABOUT THIS PROSPECTUS

This prospectus is part of an automatic shelf registration statement that we filed with the U.S. Securities and Exchange Commission, or the SEC, as a “well-known seasoned issuer” as defined in Rule 405 under the Securities Act of 1933, as amended, or the Securities Act, using a “shelf” registration process. By using a shelf registration statement, we may sell securities from time to time and in one or more offerings as described in this prospectus. This prospectus provides you with a general description of the securities we may offer. Each time that we offer and sell securities, we will provide a prospectus supplement to this prospectus that contains specific information about the securities being offered and sold and the specific terms of that offering. We may also authorize one or more free writing prospectuses to be provided to you that may contain material information relating to these offerings. The prospectus supplement or free writing prospectus may also add, update or change information contained in this prospectus with respect to that offering. If there is any inconsistency between the information in this prospectus and the applicable prospectus supplement or free writing prospectus, you should rely on the prospectus supplement or free writing prospectus, as applicable. However, no prospectus supplement will offer a security that is not registered and described in this prospectus at the time of its effectiveness. This prospectus, together with the applicable prospectus supplements and the documents incorporated by reference into this prospectus, includes all material information relating to the offering of securities under this prospectus. Before purchasing any securities, you should carefully read both this prospectus and the applicable prospectus supplement (and any applicable free writing prospectuses), the information and documents incorporated herein by reference and the additional information described under the heading “Where You Can Find More Information; Incorporation by Reference.”

You should rely only on the information contained in or incorporated by reference in this prospectus or any prospectus supplement. We have not authorized anyone to provide you with any information or to make any representations other than those contained in or incorporated by reference into this prospectus, any applicable prospectus supplement or any free writing prospectuses prepared by or on behalf of us or to which we have referred you. We take no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. We will not make an offer to sell these securities in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus and the applicable prospectus supplement to this prospectus is accurate only as of the date on its respective cover, that the information appearing in any applicable free writing prospectus is accurate only as of the date of that free writing prospectus, and that any information incorporated by reference is accurate only as of the date of the document incorporated by reference, unless we indicate otherwise. Our business, financial condition, results of operations and prospects may have changed since those dates. This prospectus incorporates by reference, and any prospectus supplement or free writing prospectus may contain and incorporate by reference, market data and industry statistics and forecasts that are based on independent industry publications and other publicly available information. Although we believe these sources are reliable, we do not guarantee the accuracy or completeness of this information and we have not independently verified this information. In addition, the market and industry data and forecasts that may be included or incorporated by reference in this prospectus, any prospectus supplement or any applicable free writing prospectus may involve estimates, assumptions and other risks and uncertainties and are subject to change based on various factors, including those discussed under the heading “Risk Factors” contained in this prospectus, the applicable prospectus supplement and any applicable free writing prospectus, and under similar headings in other documents that are incorporated by reference into this prospectus. Accordingly, investors should not place undue reliance on this information.

When we refer to “CleanSpark, Inc.,” “we,” “our,” “us” and the “Company” in this prospectus, we mean CleanSpark, Inc. and its consolidated subsidiaries, unless the context otherwise requires. When we refer to “you,” we mean the holders of the applicable series of securities.

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WHERE YOU CAN FIND MORE INFORMATION; INCORPORATION BY REFERENCE

Available Information

We file reports, proxy statements and other information with the SEC. The SEC maintains a website that contains reports, proxy and information statements and other information about issuers, such as us, who file electronically with the SEC. The address of that website is http://www.sec.gov.

Our website address is www.cleanspark.com. The information on, or accessible through, our website, however, is not, and should not be deemed to be, a part of this prospectus.

This prospectus and any prospectus supplement are part of a registration statement that we filed with the SEC and do not contain all of the information in the registration statement. The full registration statement may be obtained from the SEC or us, as provided below. Other documents establishing the terms of the offered securities are or may be filed as exhibits to the registration statement or documents incorporated by reference in the registration statement. Statements in this prospectus or any prospectus supplement about these documents are summaries and each statement is qualified in all respects by reference to the document to which it refers. You should refer to the actual documents for a more complete description of the relevant matters. You may inspect a copy of the registration statement through the SEC’s website, as provided above.

Incorporation by Reference

The SEC’s rules allow us to “incorporate by reference” information into this prospectus, which means that we can disclose important information to you by referring you to another document filed separately with the SEC. The information incorporated by reference is deemed to be part of this prospectus, and subsequent information that we file with the SEC will automatically update and supersede that information. Any statement contained in this prospectus or a previously filed document incorporated by reference will be deemed to be modified or superseded for purposes of this prospectus to the extent that a statement contained in this prospectus or a subsequently filed document incorporated by reference modifies or replaces that statement. Any statement so modified or superseded will not be deemed, except as so modified or superseded, to constitute a part of this prospectus.

We incorporate by reference our documents listed below and any future filings made by us with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934, as amended, which we refer to as the “Exchange Act” in this prospectus, between the date of this prospectus and the termination of the offering of the securities described in this prospectus. We are not, however, incorporating by reference any documents or portions thereof, whether specifically listed below or filed in the future, that are not deemed “filed” with the SEC, including our performance graph or any information furnished pursuant to Items 2.02 or 7.01 of Form 8-K or related exhibits furnished pursuant to Item 9.01 of Form 8-K.

This prospectus and any accompanying prospectus supplement incorporate by reference the documents set forth below that have previously been filed with the SEC:

• our Annual Report on Form 10-K for the fiscal year ended September 30, 2023, filed with the SEC on December 1, 2023;

• our Definitive Proxy Statement on Schedule 14A filed with the SEC on January  23, 2023 (solely to the extent incorporated by reference into Part III of our Annual Report on Form 10-K for the fiscal year ended September 30, 2022);

• our Current Reports on Form 8-K filed with the SEC on October 11, 2023 and October 27, 2023 (except that, with respect to each of the foregoing Current Reports, any portions thereof which are furnished and not filed shall not be deemed incorporated by reference into this prospectus); and

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• the description of our common stock contained in our Exhibit 4.1 to our Annual Report on Form 10-K for the fiscal year ended September 30, 2023, filed with the SEC on December 1, 2023, including any amendment or report filed for the purpose of updating such description.

You may request a free copy of any of the documents incorporated by reference in this prospectus by writing or telephoning us at the following address:

CleanSpark, Inc.

10624 S. Eastern Ave., Suite A - 638

Henderson, Nevada 89052

(702) 989-7692

THE COMPANY

Overview

We are a bitcoin mining company. We independently own and operate five data centers in Georgia for a total developed capacity of 230 megawatts (“MW”). We are developing an additional 150 MW at our data center in Sandersville, GA, which is expected to energize in early 2024. We do not currently host miners for any other companies. A partner in Massena, NY hosts 50 MW for us. We design our proprietary infrastructure to responsibly support bitcoin, the world’s most important digital commodity and an essential tool for financial independence and inclusion.

Through CleanSpark and our wholly owned subsidiaries, we have operated in the bitcoin mining sector since December 2020. From March 2014 to June 30, 2022, we provided advanced energy technology solutions to commercial and residential customers to solve modern energy challenges in the alternative energy sector. As of June 30, 2022, we discontinued our energy operations due to our strategic decision to strictly focus on our bitcoin mining operations.

Corporate Information

Our principal executive offices are located at 10624 S. Eastern Ave., Suite A - 638, Henderson, NV 89052, and our telephone number is (702) 989-7692. Our website is located at www.cleanspark.com. Information contained on our website or that can be accessed through our website is not incorporated by reference into this prospectus.

Where You Can Find More Information

For additional information as to our business, properties and financial condition, please refer to the documents cited in “Where You Can Find More Information.”

RISK FACTORS

An investment in our securities involves a high degree of risk. The prospectus supplement applicable to each offering of securities will contain a discussion of the risks applicable to an investment in our securities. Prior to making a decision about investing in our securities, you should carefully consider the specific factors discussed under the heading “Risk Factors” in the applicable prospectus supplement, together with all of the other information contained or incorporated by reference in the prospectus supplement or appearing or incorporated by reference in this prospectus. You should also consider the risks, uncertainties and assumptions discussed under the heading “Risk Factors” in our most recent Annual Report on Form 10-K, which is incorporated by reference

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in this prospectus, and other information included in any document that we file from time to time after the date of this prospectus. The risks and uncertainties we have described are not the only ones we face. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also affect our operations.

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus and the documents incorporated herein by reference contain “forward-looking statements” within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act about us and our industry that involve substantial risks and uncertainties. All statements other than statements of historical fact contained in this document and the materials accompanying this document are forward-looking statements. These statements are based on current expectations of future events. Frequently, but not always, forward-looking statements are identified by the use of the future tense and by words such as “believes,” “expects,” “anticipates,” “intends,” “will,” “may,” “could,” “would,” “projects,” “continues,” “estimates” or similar expressions. Forward-looking statements are not guarantees of future performance and actual results could differ materially from those indicated by such forward-looking statements. Forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause our or our industry’s actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activity, performance or achievements expressed or implied by the forward-looking statements. These forward-looking statements speak only as of the date made and are subject to a number of known and unknown risks, uncertainties and assumptions, including the important factors incorporated by reference into this prospectus from our most recent Annual Report on Form 10-K and any subsequent Quarterly Reports on Form 10-Q and Current Reports on Form 8-K, and all other information contained or incorporated by reference into this prospectus, as updated by our subsequent filings under the Exchange Act and in our other filings with the SEC, that may cause our actual results, performance or achievements to differ materially and adversely from those expressed or implied by the forward-looking statements.

Because forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified and some of which are beyond our control, you should not rely on these forward-looking statements as predictions of future events. The events and circumstances reflected in our forward-looking statements may not be achieved or occur, and actual results could differ materially from those projected in the forward-looking statements. Moreover, we operate in an evolving environment. New risk factors and uncertainties may emerge from time to time, and it is not possible for management to predict all risk factors and uncertainties. Except as required by applicable law, we do not plan to publicly update or revise any forward-looking statements, whether as a result of any new information, future events, changed circumstances or otherwise.

USE OF PROCEEDS

Except as otherwise set forth in any accompanying prospectus supplement, we expect to use the net proceeds from the sale of securities for general corporate purposes, which may include funding our future development, strategic acquisitions or other significant corporate transactions.

DESCRIPTION OF CAPITAL STOCK

The following description sets forth certain general terms and provisions of the common stock and preferred stock to which any prospectus supplement may relate. This description is summarized from, and qualified in its entirety by reference to, the applicable provisions of Nevada Revised Statutes (“NRS”) Chapters 78 and 92A and our amended and restated articles of incorporation, as amended through March 8, 2023 (the “Amended and Restated Articles of Incorporation”), and amended and restated bylaws, which are incorporated by reference as exhibits to the registration statement of which this prospectus forms a part.

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In this “Description of Capital Stock” section, when we refer to “we,” “us” or “our” or when we otherwise refer to ourselves, we mean CleanSpark, Inc., excluding, unless otherwise expressly stated or the context requires, our subsidiaries.

General

Our Amended and Restated Articles of Incorporation authorize us to issue up to 300,000,000 shares of common stock, $0.001 par value per share, and 10,000,000 shares of preferred stock, $0.001 par value per share, of which 2,000,000 of such shares are designated as Series A Preferred Stock.

As of January 5, 2024, there were 189,558,029 shares of common stock outstanding and 1,750,000 shares of our Series A Preferred Stock outstanding.

Common Stock

Voting rights. Each holder of our common stock is entitled to one vote for each share on all matters submitted to a vote of the stockholders, including the election of directors. Our stockholders do not have cumulative voting rights in the election of directors. Directors are elected by a plurality of the votes cast at the meeting of stockholders.

Dividends. Subject to preferences that may be applicable to any then-outstanding preferred stock, holders of common stock are entitled to receive ratably those dividends, if any, as may be declared from time to time by our board of directors out of legally available funds. We have never declared or paid any cash dividends on our common stock. We currently intend to retain future earnings, if any, to finance the expansion of our business. As a result, we do not anticipate paying any cash dividends in the foreseeable future.

Liquidation. In the event of the liquidation, dissolution or winding up of the Company, holders of our common stock are entitled to share ratably in the net assets legally available for distribution to stockholders after the payment of all of our debts and other liabilities and the satisfaction of any liquidation preference granted to the holders of any then-outstanding shares of preferred stock.

Rights and preferences. Holders of common stock have no preemptive, conversion or subscription rights and there are no redemption or sinking fund provisions applicable to our common stock. The rights, preferences and privileges of the holders of common stock are subject to, and may be adversely affected by, the rights of the holders of shares of any series of our preferred stock, including any series of preferred stock that our board of directors may designate in the future.

Fully paid and nonassessable. All of our outstanding shares of common stock are, and the shares of common stock to be issued in this offering, if any, will be, upon payment therefor, fully paid and nonassessable.

Preferred Stock

Under our Amended and Restated Articles of Incorporation, our board of directors has the authority, without further action by the stockholders (unless such stockholder action is required by applicable law or the rules of any stock exchange or market on which our securities are then traded), to designate and issue up to 10,000,000 shares of preferred stock in one or more series, to establish from time to time the number of shares to be included in each such series, to fix the designations, voting powers, preferences and rights of the shares of each wholly unissued series, and any qualifications, limitations or restrictions thereof, and to increase or decrease the number of shares of any such series, but not below the number of shares of such series then outstanding.

We will fix the designations, voting powers, preferences and rights of the preferred stock of each series, as well as the qualifications, limitations or restrictions thereof, in a certificate of designation relating to that series.

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We will file as an exhibit to our reports, or will incorporate by reference from reports that we file with the SEC, the form of any certificate of designation that describes the terms of the series of preferred stock we are offering before the issuance of that series of preferred stock. This description will include, as applicable:

• the title and stated value, if any;

• the number of shares we are offering;

• the liquidation preference, if any, per share;

• the purchase price;

• the dividend rate, period and payment date and method of calculation for dividends;

• whether dividends, if any, will be cumulative or non-cumulative and, if cumulative, the date from which dividends will accumulate;

• the procedures for any auction and remarketing, if any;

• the provisions for a sinking fund, if any;

• the provisions for redemption or repurchase, if applicable, and any restrictions on our ability to exercise those redemption and repurchase rights;

• any listing of the preferred stock on any securities exchange or market;

• whether the preferred stock will be convertible into our common stock, and, if applicable, the conversion price, or how it will be calculated, and the conversion period;

• whether the preferred stock will be exchangeable into debt securities, and, if applicable, the exchange price, or how it will be calculated, and the exchange period;

• voting rights, if any;

• preemptive rights, if any;

• restrictions on transfer, sale or other assignment, if any;

• a discussion of any material U.S. federal income tax considerations applicable to the preferred stock;

• the relative ranking and preferences of the preferred stock as to dividend rights and rights if we liquidate, dissolve or wind up our affairs;

• any limitations on the issuance of any class or series of preferred stock ranking senior to or on a parity with the series of preferred stock as to dividend rights and rights if we liquidate, dissolve or wind up our affairs; and

• any other specific terms, preferences, rights or limitations of, or restrictions on, the preferred stock.

Nevada law provides that, in addition to any approval otherwise required and unless such right to vote is specifically denied in a corporation’s articles of incorporation (including any applicable certificate of designation), any proposed amendment to a corporation’s articles of incorporation that would adversely alter or change any preference or any relative or other right given to any class or series of outstanding shares must be approved by the holders of shares representing a majority of the voting power of each class or series adversely affected by the amendment regardless of limitations or restrictions on the voting power of the class or series.

Our board of directors may authorize the issuance of preferred stock with voting, exchange or conversion rights that could adversely affect the voting power or other rights of the holders of our common stock. Preferred stock could be issued quickly with terms designed to delay or prevent a change in control of the Company or make removal of management more difficult. Additionally, the issuance of preferred stock may have the effect of decreasing the market price of our common stock.

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Series A Preferred Stock

Currently, two million (2,000,000) shares of our preferred stock are designated as Series A Preferred Stock, of which one million seven hundred fifty thousand (1,750,000) shares are outstanding. Under the certificate of designation for the Series A Preferred Stock, holders of Series A Preferred Stock will be entitled to quarterly dividends on 2% of our earnings before interest, taxes and amortization. The dividends are payable in cash or common stock. The holders will also have a liquidation preference on the stated value of $0.02 per share plus any accumulated but unpaid dividends. The holders are further entitled to have the Company redeem each share of Series A Preferred Stock for three shares of our common stock if a change of control event (as defined in the certificate of designation) occurs, and they are entitled to vote together with the holders of the Company’s common stock on all matters submitted to stockholders at a rate of forty-five (45) votes for each share of Series A Preferred Stock held.

Stock Options

The Company sponsors a stock-based incentive compensation plan known as the 2017 Incentive Plan (the “2017 Plan”), which was established by our board of directors on June 19, 2017. A total of 300,000 shares were initially reserved for issuance under the 2017 Plan. On October 7, 2020, the Company executed an amendment to the 2017 Plan to increase the reserved option pool to 1,500,000 shares. On September 17, 2021, the Company executed a second amendment to the 2017 Plan to increase the number of shares of common stock authorized for issuance under the 2017 Plan by an additional 2,000,000 shares. On March 8, 2023, the Company executed a third amendment to the 2017 Plan to (i) increase the number of common stock authorized for issuance under the 2017 Plan by an additional 8,012,000 shares and (ii) add an evergreen provision to, on April 1st and October 1st of each year, automatically increase the maximum number of shares of common stock available under the 2017 Plan to fifteen percent (15%) of the Company’s outstanding shares of common stock, in each case as of the last day of the immediately preceding month.

The 2017 Plan allows the Company to grant incentive stock options, non-qualified stock options, stock appreciation rights, restricted stock and stock units. The incentive stock options are exercisable for up to ten years, at an option price per share not less than the fair market value on the date the option is granted. The incentive stock options are limited to persons who are regular full-time employees of the Company at the date of the grant of the option. Non-qualified options may be granted to any person, including, but not limited to, employees, independent agents, consultants and attorneys who the Company’s board of directors believes have contributed, or will contribute, to the success of the Company. Non-qualified options may be issued at option prices of less than fair market value on the date of grant and may be exercisable for up to ten years from date of grant. The option vesting schedule for options granted is determined by the board of directors at the time of the grant. The 2017 Plan provides for accelerated vesting of unvested options if there is a change in control, as defined in the 2017 Plan.

As of January 5, 2024, there were options exercisable to purchase 1,140,345 shares of common stock in the Company and 787,471 unvested options outstanding that cannot be exercised until vesting conditions are met. As of January 5, 2024, the outstanding options had a weighted average remaining term of 7.94 years and an intrinsic value of $4,068,203.

Warrants

As of January 5, 2024, there were warrants exercisable to purchase 182,560 shares of common stock in the Company and there were no warrants that were unvested. All outstanding warrants contain provisions allowing cashless exercise at their respective exercise prices.

Anti-Takeover Laws

The NRS contain provisions governing the acquisition of a controlling interest in certain Nevada corporations. Nevada’s “acquisition of controlling interest” statutes (NRS 78.378 through 78.3793, inclusive)

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contain provisions governing the acquisition of a controlling interest in certain Nevada corporations. These “control share” laws provide generally that any person that acquires a “controlling interest” in certain Nevada corporations may be denied voting rights, unless a majority of the disinterested stockholders of the corporation elect to restore such voting rights. These laws will apply to us as of a particular date if we were to have 200 or more stockholders of record (at least 100 of whom have addresses in Nevada appearing on our stock ledger at all times during the 90 days immediately preceding that date) and do business in the State of Nevada directly or through an affiliated corporation, unless our Amended and Restated Articles of Incorporation or amended and restated bylaws in effect on the tenth day after the acquisition of a controlling interest provide otherwise. These laws provide that a person acquires a “controlling interest” whenever a person acquires shares of a subject corporation that, but for the application of these provisions of the NRS, would enable that person to exercise (1) one-fifth or more, but less than one-third, (2) one-third or more, but less than a majority, or (3) a majority or more of all of the voting power of the corporation in the election of directors. Once an acquirer crosses one of these thresholds, shares which it acquired in the transaction taking it over the threshold and within the 90 days immediately preceding the date when the acquiring person acquired or offered to acquire a controlling interest become “control shares” to which the voting restrictions described above apply. These laws may have a chilling effect on certain transactions if our Amended and Restated Articles of Incorporation or amended and restated bylaws are not timely amended to provide that these provisions do not apply to us or to an acquisition of a controlling interest, or if our disinterested stockholders do not confer voting rights in the control shares.

Nevada’s “combinations with interested stockholders” statutes (NRS 78.411 through 78.444, inclusive) provide that specified types of business “combinations” between certain Nevada corporations and any person deemed to be an “interested stockholder” of the corporation are prohibited for two years after such person first becomes an “interested stockholder” unless the corporation’s board of directors approves the combination (or the transaction by which such person becomes an “interested stockholder”) in advance, or unless the combination is approved by the board of directors and sixty percent of the corporation’s voting power not beneficially owned by the interested stockholder, its affiliates and associates. Furthermore, in the absence of prior approval certain restrictions may apply even after such two-year period. For purposes of these statutes, an “interested stockholder” is any person who is (1) the beneficial owner, directly or indirectly, of 10% or more of the voting power of the outstanding voting shares of the corporation, or (2) an affiliate or associate of the corporation and at any time within the two previous years was the beneficial owner, directly or indirectly, of 10% or more of the voting power of the then-outstanding shares of the corporation. The definition of the term “combination” is sufficiently broad to cover most significant transactions between a corporation and an “interested stockholder”. These laws generally apply to Nevada corporations with 200 or more stockholders of record. However, a Nevada corporation may elect in its articles of incorporation not to be governed by these particular laws, but if such election is not made in the corporation’s original articles of incorporation, the amendment (1) must be approved by the affirmative vote of the holders of stock representing a majority of the outstanding voting power of the corporation not beneficially owned by interested stockholders or their affiliates and associates, and (2) is not effective until 18 months after the vote approving the amendment and does not apply to any combination with a person who first became an interested stockholder on or before the effective date of the amendment. We have not made such an election in our original articles of incorporation and we have not amended our Amended and Restated Articles of Incorporation to so elect.

Further, NRS 78.139 provides that directors may resist a change or potential change in control of a corporation if the board of directors determines that the change or potential change in control is opposed to or not in the best interest of the corporation upon consideration of any relevant facts, circumstances, contingencies or constituencies pursuant to NRS 78.138(4).

Listing

The Company’s common stock is listed on the Nasdaq Capital Market.

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Transfer Agent and Registrar

The transfer agent and registrar for our common stock is Securities Transfer Corporation. Its address is 2901 N. Dallas Parkway, Suite 380, Plano, Texas 75093.

DESCRIPTION OF DEBT SECURITIES

We may issue debt securities from time to time, in one or more series, as either senior or subordinated debt or as senior or subordinated convertible debt. While the terms we have summarized below will apply generally to any debt securities that we may offer under this prospectus, we will describe the particular terms of any debt securities that we may offer in more detail in the applicable prospectus supplement. The terms of any debt securities offered under a prospectus supplement may differ from the terms described below. Unless the context requires otherwise, whenever we refer to the indenture, we also are referring to any supplemental indentures that specify the terms of a particular series of debt securities.

We will issue the debt securities under the indenture that we will enter into with the trustee named in the indenture. The indenture will be qualified under the Trust Indenture Act of 1939, as amended, or the Trust Indenture Act. We have filed the form of indenture as an exhibit to the registration statement of which this prospectus is a part, and supplemental indentures and forms of debt securities containing the terms of the debt securities being offered will be filed as exhibits to the registration statement of which this prospectus is a part or will be incorporated by reference from reports that we file with the SEC.

The following summary of material provisions of the debt securities and the indenture is subject to, and qualified in its entirety by reference to, all of the provisions of the indenture applicable to a particular series of debt securities. We urge you to read the applicable prospectus supplements and any related free writing prospectuses related to the debt securities that we may offer under this prospectus, as well as the complete indenture that contains the terms of the debt securities.

General

The indenture does not limit the amount of debt securities that we may issue. It provides that we may issue debt securities up to the principal amount that we may authorize and may be in any currency or currency unit that we may designate. Except for the limitations on consolidation, merger and sale of all or substantially all of our assets contained in the indenture, the terms of the indenture do not contain any covenants or other provisions designed to give holders of any debt securities protection against changes in our operations, financial condition or transactions involving us.

We may issue the debt securities issued under the indenture as “discount securities,” which means they may be sold at a discount below their stated principal amount. These debt securities, as well as other debt securities that are not issued at a discount, may be issued with “original issue discount,” or OID, for U.S. federal income tax purposes because of interest payment and other characteristics or terms of the debt securities. Material U.S. federal income tax considerations applicable to debt securities issued with OID will be described in more detail in any applicable prospectus supplement.

We will describe in the applicable prospectus supplement the terms of the series of debt securities being offered, including:

• the title of the series of debt securities;

• any limit upon the aggregate principal amount that may be issued;

• the maturity date or dates;

• the form of the debt securities of the series;

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• the applicability of any guarantees;

• whether or not the debt securities will be secured or unsecured, and the terms of any secured debt;

• whether the debt securities rank as senior debt, senior subordinated debt, subordinated debt or any combination thereof, and the terms of any subordination;

• if the price (expressed as a percentage of the aggregate principal amount thereof) at which such debt securities will be issued is a price other than the principal amount thereof, the portion of the principal amount thereof payable upon declaration of acceleration of the maturity thereof, or if applicable, the portion of the principal amount of such debt securities that is convertible into another security or the method by which any such portion shall be determined;

• the interest rate or rates, which may be fixed or variable, or the method for determining the rate and the date interest will begin to accrue, the dates interest will be payable and the regular record dates for interest payment dates or the method for determining such dates;

• our right, if any, to defer payment of interest and the maximum length of any such deferral period;

• if applicable, the date or dates after which, or the period or periods during which, and the price or prices at which, we may, at our option, redeem the series of debt securities pursuant to any optional or provisional redemption provisions and the terms of those redemption provisions;

• the date or dates, if any, on which, and the price or prices at which we are obligated, pursuant to any mandatory sinking fund or analogous fund provisions or otherwise, to redeem, or at the holder’s option to purchase, the series of debt securities and the currency or currency unit in which the debt securities are payable;

• the denominations in which we will issue the series of debt securities, if other than denominations of $1,000 and any integral multiple thereof;

• any and all terms, if applicable, relating to any auction or remarketing of the debt securities of that series and any security for our obligations with respect to such debt securities and any other terms which may be advisable in connection with the marketing of debt securities of that series;

• whether the debt securities of the series shall be issued in whole or in part in the form of a global security or securities; the terms and conditions, if any, upon which such global security or securities may be exchanged in whole or in part for other individual securities; and the depositary for such global security or securities;

• if applicable, the provisions relating to conversion or exchange of any debt securities of the series and the terms and conditions upon which such debt securities will be so convertible or exchangeable, including the conversion or exchange price, as applicable, or how it will be calculated and may be adjusted, any mandatory or optional (at our option or the holders’ option) conversion or exchange features, the applicable conversion or exchange period and the manner of settlement for any conversion or exchange;

• additions to or changes in the covenants applicable to the particular debt securities being issued, including, among others, the consolidation, merger or sale covenant;

• additions to or changes in the events of default with respect to the securities and any change in the right of the trustee or the holders to declare the principal, premium, if any, and interest, if any, with respect to such securities to be due and payable;

• additions to or changes in or deletions of the provisions relating to covenant defeasance and legal defeasance;

• additions to or changes in the provisions relating to satisfaction and discharge of the indenture;

• additions to or changes in the provisions relating to the modification of the indenture both with and without the consent of holders of debt securities issued under the indenture;

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• the currency of payment of debt securities if other than U.S. dollars and the manner of determining the equivalent amount in U.S. dollars;

• whether interest will be payable in cash or additional debt securities at our or the holders’ option and the terms and conditions upon which the election may be made;

• the terms and conditions, if any, upon which we will pay amounts in addition to the stated interest, premium, if any, and principal amounts of the debt securities of the series to any holder that is not a “United States person” for federal tax purposes;

• any restrictions on transfer, sale or assignment of the debt securities of the series; and

• any other specific terms, preferences, rights or limitations of, or restrictions on, the debt securities, any other additions or changes in the provisions of the indenture, and any terms that may be required by us or advisable under applicable laws or regulations.

Conversion or Exchange Rights

We will set forth in the applicable prospectus supplement the terms on which a series of debt securities may be convertible into or exchangeable for our common stock or our other securities. We will include provisions as to settlement upon conversion or exchange and whether conversion or exchange is mandatory, at the option of the holder or at our option. We may include provisions pursuant to which the number of shares of our common stock or our other securities that the holders of the series of debt securities receive would be subject to adjustment.

Consolidation, Merger or Sale

Unless we provide otherwise in the prospectus supplement applicable to a particular series of debt securities, the indenture will not contain any covenant that restricts our ability to merge or consolidate, or sell, convey, transfer or otherwise dispose of our assets as an entirety or substantially as an entirety. However, any successor to or acquirer of such assets (other than a subsidiary of ours) must assume all of our obligations under the indenture or the debt securities, as appropriate.

Events of Default Under the Indenture

Unless we provide otherwise in the prospectus supplement applicable to a particular series of debt securities, the following are events of default under the indenture with respect to any series of debt securities that we may issue:

• if we fail to pay any installment of interest on any series of debt securities, as and when the same shall become due and payable, and such default continues for a period of 90 days; provided, however, that a valid extension of an interest payment period by us in accordance with the terms of any indenture supplemental thereto shall not constitute a default in the payment of interest for this purpose;

• if we fail to pay the principal of, or premium, if any, on any series of debt securities as and when the same shall become due and payable whether at maturity, upon redemption, by declaration or otherwise, or in any payment required by any sinking or analogous fund established with respect to such series; provided, however, that a valid extension of the maturity of such debt securities in accordance with the terms of any indenture supplemental thereto shall not constitute a default in the payment of principal or premium, if any;

• if we fail to observe or perform any other covenant or agreement contained in the debt securities or the indenture, other than a covenant specifically relating to another series of debt securities, and our failure continues for 90 days after we receive written notice of such failure, requiring the same to be remedied

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and stating that such is a notice of default thereunder, from the trustee or holders of at least 25% in aggregate principal amount of the outstanding debt securities of the applicable series; and

• if specified events of bankruptcy, insolvency or reorganization occur.

If an event of default with respect to debt securities of any series occurs and is continuing, other than an event of default specified in the last bullet point above, the trustee or the holders of at least 25% in aggregate principal amount of the outstanding debt securities of that series, by notice to us in writing, and to the trustee if notice is given by such holders, may declare the unpaid principal of, premium, if any, and accrued interest, if any, of such series of debt securities due and payable immediately. If an event of default specified in the last bullet point above occurs with respect to us, the principal amount of and accrued interest, if any, of each issue of debt securities then outstanding shall be due and payable without any notice or other action on the part of the trustee or any holder.

The holders of a majority in principal amount of the outstanding debt securities of an affected series may waive any default or event of default with respect to the series and its consequences, except defaults or events of default regarding payment of principal, premium, if any, or interest, unless we have cured the default or event of default in accordance with the indenture. Any waiver shall cure the default or event of default.

Subject to the terms of the indenture, if an event of default under an indenture shall occur and be continuing, the trustee will be under no obligation to exercise any of its rights or powers under such indenture at the request or direction of any of the holders of the applicable series of debt securities, unless such holders have offered the trustee reasonable indemnity. The holders of a majority in principal amount of the outstanding debt securities of any series will have the right to direct the time, method and place of conducting any proceeding for any remedy available to the trustee, or exercising any trust or power conferred on the trustee, with respect to the debt securities of that series; provided that:

• the direction so given by the holder is not in conflict with any law or the applicable indenture; and

• subject to its duties under the Trust Indenture Act, the trustee need not take any action that might involve it in personal liability or might be unduly prejudicial to the holders not involved in the proceeding.

A holder of the debt securities of any series will have the right to institute a proceeding under the indenture or to appoint a receiver or trustee, or to seek other remedies only if:

• the holder has given written notice to the trustee of a continuing event of default with respect to that series;

• the holders of at least 25% in aggregate principal amount of the outstanding debt securities of that series have made written request;

• such holders have offered to the trustee indemnity satisfactory to it against the costs, expenses and liabilities to be incurred by the trustee in compliance with the request; and

• the trustee does not institute the proceeding and does not receive from the holders of a majority in aggregate principal amount of the outstanding debt securities of that series other conflicting directions within 90 days after the notice, request and offer.

These limitations do not apply to a suit instituted by a holder of debt securities if we default in the payment of the principal, premium, if any, or interest on the debt securities.

We will periodically file statements with the trustee regarding our compliance with specified covenants in the indenture.

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Modification of Indenture; Waiver

Unless we provide otherwise in the prospectus supplement applicable to a particular series of debt securities, we and the trustee may change an indenture without the consent of any holders with respect to specific matters:

• to cure any ambiguity, defect or inconsistency in the indenture or in the debt securities of any series;

• to comply with the provisions described above under “Description of Debt Securities—Consolidation, Merger or Sale”;

• to provide for uncertificated debt securities in addition to or in place of certificated debt securities;

• to add to our covenants, restrictions, conditions or provisions such new covenants, restrictions, conditions or provisions for the benefit of the holders of all or any series of debt securities, to make the occurrence, or the occurrence and the continuance, of a default in any such additional covenants, restrictions, conditions or provisions an event of default or to surrender any right or power conferred upon us in the indenture;

• to add to, delete from or revise the conditions, limitations, and restrictions on the authorized amount, terms, or purposes of issue, authentication and delivery of debt securities, as set forth in the indenture;

• to make any change that does not adversely affect the interests of any holder of debt securities of any series in any material respect;

• to provide for the issuance of and establish the form and terms and conditions of the debt securities of any series as provided above under “Description of Debt Securities—General” to establish the form of any certifications required to be furnished pursuant to the terms of the indenture or any series of debt securities, or to add to the rights of the holders of any series of debt securities;

• to evidence and provide for the acceptance of appointment under any indenture by a successor trustee; or

• to comply with any requirements of the SEC in connection with the qualification of any indenture under the Trust Indenture Act.

In addition, under the indenture, the rights of holders of a series of debt securities may be changed by us and the trustee with the written consent of the holders of at least a majority in aggregate principal amount of the outstanding debt securities of each series that is affected. However, unless we provide otherwise in the prospectus supplement applicable to a particular series of debt securities, we and the trustee may make the following changes only with the consent of each holder of any outstanding debt securities affected:

• extending the fixed maturity of any debt securities of any series;

• reducing the principal amount, reducing the rate of or extending the time of payment of interest, or reducing any premium payable upon the redemption of any series of any debt securities; or

• reducing the percentage of debt securities, the holders of which are required to consent to any amendment, supplement, modification or waiver.

Discharge

The indenture provides that we can elect to be discharged from our obligations with respect to one or more series of debt securities, except for specified obligations, including obligations to:

• provide for payment;

• register the transfer or exchange of debt securities of the series;

• replace stolen, lost or mutilated debt securities of the series;

• pay principal of and premium and interest on any debt securities of the series;

• maintain paying agencies;

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• hold monies for payment in trust;

• recover excess money held by the trustee;

• compensate and indemnify the trustee; and

• appoint any successor trustee.

In order to exercise our rights to be discharged, we must deposit with the trustee money or government obligations sufficient to pay all the principal of, any premium, if any, and interest on, the debt securities of the series on the dates payments are due.

Form, Exchange and Transfer

We will issue the debt securities of each series only in fully registered form without coupons and, unless we provide otherwise in the applicable prospectus supplement, in denominations of $1,000 and any integral multiple thereof. The indenture provides that we may issue debt securities of a series in temporary or permanent global form and as book-entry securities that will be deposited with, or on behalf of, The Depository Trust Company, or DTC, or another depositary named by us and identified in the applicable prospectus supplement with respect to that series. To the extent the debt securities of a series are issued in global form and as book-entry, a description of terms relating to any book-entry securities will be set forth in the applicable prospectus supplement.

At the option of the holder, subject to the terms of the indenture and the limitations applicable to global securities described in the applicable prospectus supplement, the holder of the debt securities of any series can exchange the debt securities for other debt securities of the same series, in any authorized denomination and of like tenor and aggregate principal amount.

Subject to the terms of the indenture and the limitations applicable to global securities set forth in the applicable prospectus supplement, holders of the debt securities may present the debt securities for exchange or for registration of transfer, duly endorsed or with the form of transfer endorsed thereon duly executed if so required by us or the security registrar, at the office of the security registrar or at the office of any transfer agent designated by us for this purpose. Unless otherwise provided in the debt securities that the holder presents for transfer or exchange, we will impose no service charge for any registration of transfer or exchange, but we may require payment of any taxes or other governmental charges.

We will name in the applicable prospectus supplement the security registrar, and any transfer agent in addition to the security registrar, that we initially designate for any debt securities. We may at any time designate additional transfer agents or rescind the designation of any transfer agent or approve a change in the office through which any transfer agent acts, except that we will be required to maintain a transfer agent in each place of payment for the debt securities of each series.

If we elect to redeem the debt securities of any series, we will not be required to:

• issue, register the transfer of, or exchange any debt securities of that series during a period beginning at the opening of business 15 days before the day of mailing of a notice of redemption of any debt securities that may be selected for redemption and ending at the close of business on the day of the mailing; or

• register the transfer of or exchange any debt securities so selected for redemption, in whole or in part, except the unredeemed portion of any debt securities we are redeeming in part.

Information Concerning the Trustee

The trustee, other than during the occurrence and continuance of an event of default under an indenture, undertakes to perform only those duties as are specifically set forth in the applicable indenture. Upon an event of

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default under an indenture, the trustee must use the same degree of care as a prudent person would exercise or use in the conduct of his or her own affairs. Subject to this provision, the trustee is under no obligation to exercise any of the powers given it by the indenture at the request of any holder of debt securities unless it is offered reasonable security and indemnity against the costs, expenses and liabilities that it might incur.

Payment and Paying Agents

Unless we otherwise indicate in the applicable prospectus supplement, we will make payment of the interest on any debt securities on any interest payment date to the person in whose name the debt securities, or one or more predecessor securities, are registered at the close of business on the regular record date for the interest.

We will pay principal of and any premium and interest on the debt securities of a particular series at the office of the paying agents designated by us, except that, unless we otherwise indicate in the applicable prospectus supplement, we will make interest payments by check that we will mail to the holder or by wire transfer to certain holders. Unless we otherwise indicate in the applicable prospectus supplement, we will designate the corporate trust office of the trustee as our sole paying agent for payments with respect to debt securities of each series. We will name in the applicable prospectus supplement any other paying agents that we initially designate for the debt securities of a particular series. We will maintain a paying agent in each place of payment for the debt securities of a particular series.

All money we pay to a paying agent or the trustee for the payment of the principal of or any premium or interest on any debt securities that remains unclaimed at the end of two years after such principal, premium or interest has become due and payable will be repaid to us, and the holder of the debt security thereafter may look only to us for payment thereof.

Governing Law

The indenture and the debt securities, and any claim, controversy or dispute arising under or related to the indenture or the debt securities, will be governed by and construed in accordance with the laws of the State of New York, except to the extent that the Trust Indenture Act is applicable.

DESCRIPTION OF WARRANTS

General

We may issue warrants for the purchase of our debt securities, preferred stock, common stock or any combination thereof. Warrants may be issued independently or together with our debt securities, preferred stock or common stock and may be attached to or separate from any offered securities. Each series of warrants will be issued under a separate warrant agreement to be entered into between us and a bank or trust company, as warrant agent. The warrant agent will act solely as our agent in connection with the warrants. The warrant agent will not have any obligation or relationship of agency or trust for or with any holders or beneficial owners of warrants. This summary of certain provisions of the warrants is not complete. For the terms of a particular series of warrants, you should refer to the prospectus supplement for that series of warrants and the warrant agreement for that particular series.

Debt Warrants

The prospectus supplement relating to a particular issue of warrants to purchase debt securities will describe the terms of the debt warrants, including the following:

• the title of the debt warrants;

• the offering price for the debt warrants, if any;

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• the aggregate number of the debt warrants;

• the designation and terms of the debt securities, including any conversion rights, purchasable upon exercise of the debt warrants;

• if applicable, the date from and after which the debt warrants and any debt securities issued with them will be separately transferable;

• the principal amount of debt securities that may be purchased upon exercise of a debt warrant and the exercise price for the warrants, which may be payable in cash, securities or other property;

• the dates on which the right to exercise the debt warrants will commence and expire;

• if applicable, the minimum or maximum amount of the debt warrants that may be exercised at any one time;

• whether the debt warrants represented by the debt warrant certificates or debt securities that may be issued upon exercise of the debt warrants will be issued in registered or bearer form;

• information with respect to book-entry procedures, if any;

• the currency or currency units in which the offering price, if any, and the exercise price are payable;

• if applicable, a discussion of material U.S. federal income tax considerations;

• the antidilution provisions of the debt warrants, if any;

• the redemption or call provisions, if any, applicable to the debt warrants;

• any provisions with respect to the holder’s right to require us to repurchase the debt warrants upon a change in control or similar event; and

• any additional terms of the debt warrants, including procedures and limitations relating to the exchange, and exercise and settlement of the debt warrants.

Debt warrant certificates will be exchangeable for new debt warrant certificates of different denominations. Debt warrants may be exercised at the corporate trust office of the warrant agent or any other office indicated in the prospectus supplement. Prior to the exercise of their debt warrants, holders of debt warrants will not have any of the rights of holders of the debt securities purchasable upon exercise and will not be entitled to payment of principal or any premium, if any, or interest on the debt securities purchasable upon exercise.

Equity Warrants

The prospectus supplement relating to a particular series of warrants to purchase our common stock or preferred stock will describe the terms of the warrants, including the following:

• the title of the warrants;

• the offering price for the warrants, if any;

• the aggregate number of warrants;

• the designation and terms of the common stock or preferred stock that may be purchased upon exercise of the warrants;

• if applicable, the designation and terms of the securities with which the warrants are issued and the number of warrants issued with each security;

• if applicable, the date from and after which the warrants and any securities issued with the warrants will be separately transferable;

• the number of shares of common stock or preferred stock that may be purchased upon exercise of a warrant and the exercise price for the warrants;

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• the dates on which the right to exercise the warrants shall commence and expire;

• if applicable, the minimum or maximum amount of the warrants that may be exercised at any one time;

• the currency or currency units in which the offering price, if any, and the exercise price are payable;

• if applicable, a discussion of material U.S. federal income tax considerations;

• the antidilution provisions of the warrants, if any;

• the redemption or call provisions, if any, applicable to the warrants;

• any provisions with respect to a holder’s right to require us to repurchase the warrants upon a change in control or similar event; and

• any additional terms of the warrants, including procedures and limitations relating to the exchange, exercise and settlement of the warrants.

Holders of equity warrants will not be entitled:

• to vote, consent or receive dividends;

• receive notice as stockholders with respect to any meeting of stockholders for the election of our directors or any other matter; or

• exercise any rights as stockholders.

DESCRIPTION OF SUBSCRIPTION RIGHTS

We may issue subscription rights to purchase our common stock, preferred stock or debt securities. These subscription rights may be offered independently or together with any other security offered hereby and may or may not be transferable by the stockholder receiving the subscription rights in such offering. In connection with any offering of subscription rights, we may enter into a standby arrangement with one or more underwriters or other purchasers pursuant to which the underwriters or other purchasers may be required to purchase any securities remaining unsubscribed for after such offering.

The prospectus supplement relating to any subscription rights we offer, if any, will, to the extent applicable, include specific terms relating to the offering, including some or all of the following:

• the price, if any, for the subscription rights;

• the exercise price payable for our common stock, preferred stock or debt securities upon the exercise of the subscription rights;

• the number of subscription rights to be issued to each stockholder;

• the number and terms of our common stock, preferred stock or debt securities which may be purchased per each subscription right;

• the extent to which the subscription rights are transferable;

• any other terms of the subscription rights, including the terms, procedures and limitations relating to the exchange and exercise of the subscription rights;

• the date on which the right to exercise the subscription rights shall commence, and the date on which the subscription rights shall expire;

• the extent to which the subscription rights may include an over-subscription privilege with respect to unsubscribed securities or an over-allotment privilege to the extent the securities are fully subscribed; and

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• if applicable, the material terms of any standby underwriting or purchase arrangement which may be entered into by us in connection with the offering of subscription rights.

The description in the applicable prospectus supplement of any subscription rights we offer will not necessarily be complete and will be qualified in its entirety by reference to the applicable subscription rights certificate, which will be filed with the SEC if we offer subscription rights. We urge you to read the applicable subscription rights certificate and any applicable prospectus supplement in their entirety.

DESCRIPTION OF UNITS

We may issue units consisting of some or all of the securities described above, in any combination, including common stock, preferred stock, warrants and/or debt securities. The terms of these units will be set forth in a prospectus supplement. The description of the terms of these units in the related prospectus supplement will not be complete. You should refer to the applicable form of unit and unit agreement for complete information with respect to these units.

PLAN OF DISTRIBUTION

We may sell the securities offered by this prospectus from time to time in one or more transactions, including without limitation:

• through underwriters or dealers;

• directly to purchasers;

• in a rights offering;

• in “at the market” offerings, within the meaning of Rule 415(a)(4) of the Securities Act, to or through a market maker or into an existing trading market on an exchange or otherwise;

• through agents;

• through a combination of any of these methods; or

• through any other method permitted by applicable law and described in a prospectus supplement.

In addition, we may enter into derivative or hedging transactions with third parties, or sell securities not covered by this prospectus to third parties in privately negotiated transactions. In connection with such a transaction, the third parties may sell securities covered by and pursuant to this prospectus and any accompanying prospectus supplement. If so, the third party may use securities borrowed from us or others to settle such sales and may use securities received from us to close out any related short positions. We may also loan or pledge securities covered by this prospectus and any accompanying prospectus supplement to third parties, who may sell the loaned securities or, in an event of default in the case of a pledge, sell the pledged securities pursuant to this prospectus and any accompanying prospectus supplement.

The prospectus supplement with respect to any offering of securities will include the following information:

• the terms of the offering;

• the names of any underwriters, dealers or direct purchasers;

• the name or names of any managing underwriter or underwriters;

• the purchase price or initial public offering price of the securities;

• the net proceeds from the sale of the securities;

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• any delayed delivery arrangements;

• any underwriting discounts, commissions and other items constituting underwriters’ compensation;

• any discounts or concessions allowed or reallowed or paid to dealers;

• any commissions paid to agents; and

• any securities exchange on which the securities may be listed.

Sale through Underwriters or Dealers

If underwriters are used in the sale, the underwriters will acquire the securities for their own account. The underwriters may resell the securities from time to time in one or more transactions, including negotiated transactions, at a fixed public offering price or at varying prices determined at the time of sale. Underwriters may offer securities to the public either through underwriting syndicates represented by one or more managing underwriters or directly by one or more firms acting as underwriters. Unless we inform you otherwise in the applicable prospectus supplement, the obligations of the underwriters to purchase the securities will be subject to certain conditions, and the underwriters will be obligated to purchase all of the offered securities if they purchase any of them. The underwriters may change from time to time any initial public offering price and any discounts or concessions allowed or reallowed or paid to dealers.

During and after an offering through underwriters, the underwriters may purchase and sell the securities in the open market. These transactions may include overallotment and stabilizing transactions and purchases to cover syndicate short positions created in connection with the offering. The underwriters may also impose a penalty bid, which means that selling concessions allowed to syndicate members or other broker-dealers for the offered securities sold for their account may be reclaimed by the syndicate if the offered securities are repurchased by the syndicate in stabilizing or covering transactions. These activities may stabilize, maintain or otherwise affect the market price of the offered securities, which may be higher than the price that might otherwise prevail in the open market. If commenced, the underwriters may discontinue these activities at any time.

Some or all of the securities that we offer through this prospectus may be new issues of securities with no established trading market. Any underwriters to whom we sell our securities for public offering and sale may make a market in those securities, but they will not be obligated to do so and they may discontinue any market making at any time without notice. Accordingly, we cannot assure you of the liquidity of, or continued trading markets for, any securities that we offer.

If dealers are used in the sale of securities, we will sell the securities to them as principals. They may then resell those securities to the public at fixed prices or at varying prices determined by the dealers at the time of resale. We will include in the applicable prospectus supplement the names of the dealers and the terms of the transaction.

If agents are used in an offering, the names of the agents and the terms of the agency will be specified in a prospectus supplement. Unless otherwise indicated in a prospectus supplement, the agents will act on a best-efforts basis for the period of their appointment.

Dealers and agents named in a prospectus supplement may be underwriters, as defined in the Securities Act, and any discounts or commissions they receive from us and any profit on their resale of the securities may be treated as underwriting discounts and commissions under the Securities Act. We will identify in the applicable prospectus supplement any underwriters, dealers or agents and will describe their compensation. We may have agreements with the underwriters, dealers and agents to indemnify them against specified civil liabilities, including liabilities under the Securities Act.

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Underwriters, dealers or agents and their associates may engage in other transactions with and perform other services for us in the ordinary course of business.

If so indicated in a prospectus supplement, we will authorize underwriters or other persons acting as our agents to solicit offers by institutional investors to purchase securities pursuant to contracts providing for payment and delivery on a future date. We may enter contracts with commercial and savings banks, insurance companies, pension funds, investment companies, educational and charitable institutions and other institutional investors. The obligations of any institutional investor will be subject to the condition that its purchase of the offered securities will not be illegal at the time of delivery. The underwriters and other agents will not be responsible for the validity or performance of contracts.

Direct Sales and Sales through Agents

We may sell the securities directly. In this case, no underwriters or agents would be involved. We may also sell the securities through agents designated by us from time to time. In the applicable prospectus supplement, we will name any agent involved in the offer or sale of the offered securities, and we will describe any commissions payable to the agent. Unless we inform you otherwise in the applicable prospectus supplement, any agent will agree to use its reasonable best efforts to solicit purchases for the period of its appointment.

We may sell the securities directly to institutional investors or others who may be deemed to be underwriters within the meaning of the Securities Act with respect to any sale of those securities. We will describe the terms of any sales of these securities in the applicable prospectus supplement.

At the Market Offerings

We may also sell the securities offered by any applicable prospectus supplement in “at the market offerings” within the meaning of Rule 415(a)(4) of the Securities Act, to or through a market maker or into an existing trading market, on an exchange or otherwise.

Remarketing Arrangements

Securities may also be offered and sold, if so indicated in the applicable prospectus supplement, in connection with a remarketing upon their purchase, in accordance with a redemption or repayment pursuant to their terms, or otherwise, by one or more remarketing firms, acting as principals for their own accounts or as agents for us. Any remarketing firm will be identified and the terms of its agreements, if any, with us and its compensation will be described in the applicable prospectus supplement.

Delayed Delivery Contracts

If we so indicate in the applicable prospectus supplement, we may authorize agents, underwriters or dealers to solicit offers from certain types of institutions to purchase securities from us at the public offering price under delayed delivery contracts. These contracts would provide for payment and delivery on a specified date in the future.

The contracts would be subject only to those conditions described in the applicable prospectus supplement. The applicable prospectus supplement will describe the commission payable for solicitation of those contracts.

General Information

We may have agreements with the underwriters, dealers, agents or remarketing firms to indemnify them against certain civil liabilities, including liabilities under the Securities Act, or to contribute with respect to payments that the underwriters, dealers, agents or remarketing firms may be required to make. Underwriters, dealers, agents or remarketing firms may be customers of, engage in transactions with or perform services for us in the ordinary course of their businesses.

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LEGAL MATTERS

The validity of the shares of our common stock and preferred stock offered hereby, and certain other matters of Nevada corporate law, will be passed upon for CleanSpark, Inc. by Brownstein Hyatt Farber Schreck, LLP, Las Vegas, Nevada. Katten Muchin Rosenman LLP will pass upon certain legal matters relating to the issuance and sale of the securities offered hereby on behalf of CleanSpark, Inc. Additional legal matters may be passed upon for us or any underwriters, dealers or agents by counsel that we will name in the applicable prospectus supplement.

EXPERTS

The consolidated financial statements of CleanSpark, Inc. as of and for the years ended September 30, 2023 and 2022 have been incorporated by reference herein in reliance on the report of MaloneBailey, LLP, independent registered public accounting firm, incorporated by reference herein, and upon the authority of said firm as experts in auditing and accounting.

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1,788,834 Shares of Common Stock

CleanSpark, Inc.

PROSPECTUS SUPPLEMENT

October 29, 2025

FAQ

What is CleanSpark (CLSK) registering in this prospectus supplement?

Up to 1,788,834 shares of common stock for resale by the selling stockholder named in the document.

Will CleanSpark receive proceeds from the resale of these shares?

No. The selling stockholder will receive all proceeds; CleanSpark will bear registration expenses.

Who is the selling stockholder in the CLSK resale registration?

The filing identifies Project Tiger HoldCo, LLC as the selling stockholder under the agreements dated October 27, 2025.

How many shares of CLSK were outstanding as of the stated date?

297,935,782 shares of common stock were outstanding as of October 28, 2025.

Where can the selling stockholder sell the registered shares?

On Nasdaq, over-the-counter markets, private sales, or via underwriters, dealers, or agents, as described in the Plan of Distribution.

What is the recent trading price reference for CLSK?

The last reported sale price on October 28, 2025 was $19.15 per share.

What transactions relate to this registration?

The shares are registered pursuant to a Registration Rights Agreement and an Equity Purchase Agreement with Project Tiger HoldCo, LLC.