Welcome to our dedicated page for Cleanspark SEC filings (Ticker: CLSK), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
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CleanSpark, Inc. (CLSK) files its annual report describing a fast-growing bitcoin mining and data center platform that is beginning to diversify into AI and high‑performance computing (HPC) hosting. The company controls approximately 1,027 MW of contracted power capacity across Georgia, Tennessee, Mississippi and Wyoming, supporting an operational hashrate of 45.6 EH/s as of September 30, 2025.
CleanSpark reports ownership of about 336,544 miners, with roughly 241,934 in service and average energy efficiency of 16.7 W/TH. For the year ended September 30, 2025, it mined approximately 7,873 bitcoins, net of pool fees, versus 7,092 in the prior fiscal year, while increasingly using mined bitcoin to fund operations, capital spending and derivative‑based treasury strategies.
The company is pivoting part of its footprint toward AI and HPC data centers, including hiring a Senior Vice President of AI Data Centers, signing a non‑binding collaboration with Submer for immersion‑cooled AI infrastructure, and acquiring 271 acres in Austin County, Texas with long‑term power agreements totaling 285 MW for a next‑generation campus. Management highlights significant regulatory, capital, execution and market risks around both bitcoin mining and the new AI/HPC initiatives.
CleanSpark, Inc.
The 8-K states that the press release, including detailed financial and operating information, is being furnished rather than filed, meaning it is not automatically subject to certain liability provisions of the Exchange Act or incorporated into other securities filings unless specifically referenced. CleanSpark’s common stock trades on The Nasdaq Stock Market under the symbol CLSK, and its redeemable warrants trade under CLSKW, each warrant being exercisable for 0.069593885 shares of common stock at an exercise price of $165.24 per whole share.
CleanSpark, Inc. completed a private offering of $1,150,000,000 0.00% Convertible Senior Notes due 2032, yielding net proceeds of approximately $1.13 billion. The notes are senior unsecured and were sold to qualified institutional buyers under Rule 144A.
The company used about $460.0 million to repurchase common stock from investors in the notes and plans to allocate the remainder to expand its power and land portfolio, develop data center infrastructure, repay bitcoin‑backed credit balances, and for general corporate purposes.
The notes carry an initial conversion rate of 52.1832 shares per $1,000 (conversion price about $19.16). Prior to August 15, 2031, conversion is permitted only upon certain events; afterward, holders may convert until two trading days before maturity on February 15, 2032. CleanSpark may settle conversions in cash, shares, or both. Redemption is not permitted before February 20, 2029; on or after that date, the company may redeem if the stock trades at least 130% of the conversion price for the required period. Holders have a fundamental change repurchase right at 100% of principal.
CleanSpark, Inc. announced the upsize and pricing of a private offering of $1.15 billion aggregate principal amount of 0.00% convertible senior notes due 2032, to be sold to qualified institutional buyers under Rule 144A. The company also granted the initial purchasers a 13‑day option to buy up to an additional $150 million of notes. The transaction is expected to close on November 13, 2025, subject to customary closing conditions.
The company filed a press release as Exhibit 99.1. This notice does not constitute an offer to sell or the solicitation of an offer to buy any securities.
CleanSpark, Inc. announced its intention to offer $1 billion aggregate principal amount of convertible senior notes due 2032 to initial purchasers for resale to qualified institutional buyers under Rule 144A, with an option for up to an additional $200 million, subject to market conditions and other factors.
Separately, the company disclosed it determined to accrue a $59 million liability for additional miner acquisition costs and indirect tax exposure relating to state use taxes, related statutory interest, and standard penalties. The disclosure reiterates that this notice does not constitute an offer to sell or a solicitation to buy these notes in any jurisdiction.
CleanSpark, Inc. filed a prospectus supplement covering the resale of up to 1,788,834 shares of common stock by a stockholder. This administrative step allows the holder to sell shares from time to time under the company’s existing automatic shelf registration. The filing also includes a legal opinion from Holland & Hart LLP as Exhibit 5.1, with the related consent included within that exhibit.
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.
CleanSpark, Inc. announced it acquired rights to approximately 271 acres in Austin County, Texas and executed long‑term power supply agreements totaling 285 megawatts to support development of a next‑generation data center campus.
The consideration at closing was a mix of cash and CleanSpark common stock, with additional cash payable upon certain post‑closing events. The company also filed supplemental risk factors to reflect a strategy that now includes data center development addressing demand from AI, cloud, and enterprise workloads.
CleanSpark furnished a press release and incorporated supplemental risk factors by reference, noting these updates align with prior disclosures. The move outlines a path to build scalable, resilient, and energy‑efficient capacity in Texas.
CleanSpark, Inc. insider filing shows a proposed sale of 582,797 shares of common stock with an aggregate market value of $8,503,008, scheduled approximately for 10/02/2025 through J.P. Morgan Securities LLC on NASDAQ. The securities being offered were acquired as RSU vesting on 12/21/2023 (180,000 shares), 09/12/2024 (272,925 shares) and 09/30/2024 (129,872 shares), each listed as compensation. The filer also reported sales during the past three months: 622,521 shares sold on 08/13/2025 for $6,185,120 and 363,900 shares sold on 09/10/2025 for $3,667,384. The notice includes the standard representation that the seller is not aware of undisclosed material adverse information.
Scott E. Garrison, Executive Vice President and Chief Development Officer of CleanSpark, Inc. (CLSK), reported multiple equity transactions dated 09/30/2025 on a Form 4. The filing shows a reported disposition of 152,932 shares of common stock, an acquisition of 33,350 shares through RSU settlement at $0, and 14,854 shares withheld to cover tax obligations on RSU vesting. The Form 4 also lists outstanding derivative holdings: employee stock options exercisable for 20,139 and 45,000 common shares (at $6 and $15.69 exercise prices respectively) and multiple restricted stock unit (RSU) balances totaling several tranche amounts including 66,700, 396,476, 270,750, and 361,000 shares with specified vesting schedules. The filing includes explanations that certain RSUs vested partially on 09/30/2025 and others vest over specified future dates, and that withheld shares were used to satisfy tax liabilities.
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