Sec Form 4 Filing - Schultz S. Matthew @ CLEANSPARK, INC. - 2025-09-12

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Schultz S. Matthew 2. Issuer Name and Ticker or Trading Symbol CLEANSPARK, INC. [ CLSK] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) CEO, Executive Chairman (Last) (First) (Middle) 10624 S. EASTERN AVE., SUITE A-638 3. Date of Earliest Transaction (MM/DD/YY) 09/12/2025 (Street) HENDERSON, NV89052 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 2,084,328 D Common Stock 09/12/2025 M 405,000 A $ 0 2,489,328 D Common Stock 09/12/2025 F 178,200 D $ 0 ( 1 ) 2,311,128 D Common Stock 480,000 I By S M Schultz Irrevocable Trust Common Stock 40,996 I By Spouse Series A Preferred 500,000 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Employee Stock Options (Right to Buy) $ 23 ( 2 ) 04/16/2031 Common Stock 400,000 400,000 D Restricted Stock Units $ 0 ( 3 ) ( 3 ) Common Stock 184,722 184,722 D Restricted Stock Units $ 0 ( 4 ) ( 4 ) Common Stock 627,753 627,753 D Restricted Stock Units $ 0 ( 5 ) ( 5 ) Common Stock 1,296,750 1,296,750 D Restricted Stock Units $ 0 ( 4 ) ( 4 ) Common Stock 1,729,000 1,729,000 D Restricted Stock Units $ 0 ( 6 ) ( 6 ) Common Stock 405,000 405,000 D Restricted Stock Units $ 0 09/12/2025 M 405,000 ( 6 ) ( 6 ) Common Stock 405,000 $ 0 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Schultz S. Matthew 10624 S. EASTERN AVE. SUITE A-638 HENDERSON, NV89052 X CEO, Executive Chairman Signatures /s/ S. Matthew Schultz 09/12/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )These shares were withheld to cover the Reporting Person's tax liability on an RSU vesting. No sale occurred. ( 2 )These Options were granted on April 16, 2021 and vested in equal monthly installments over 36 months. ( 3 )These RSUs vest in equal quarterly installments on December 3, 2025, February 13, 2026, May 13, 2026, August 13, 2026, December 3, 2026, February 12, 2027, May 13, 2027, August 13, 2027 and December 3, 2027. ( 4 )These RSUs vest in equal annual installments over three years on September 4, 2026, September 4, 2027, and September 4, 2028. ( 5 )These RSUs vest in equal semiannual installments over three years on February 13, 2026, September 4, 2026, February 13, 2027, September 4, 2027, February 13, 2028, and September 4, 2028. ( 6 )These RSUs vested on September 12, 2025.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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