S. Matthew Schultz - 13 Feb 2026 Form 4 Insider Report for CLEANSPARK, INC. (CLSK)

Role
CEO & Chairman, Director
Signature
/s/ S. Matthew Schultz
Issuer symbol
CLSK
Transactions as of
13 Feb 2026
Net transactions value
-$963,337
Form type
4
Filing time
18 Feb 2026, 21:02:04 UTC
Previous filing
05 Dec 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Schultz S. Matthew CEO & Chairman, Director 10624 S. EASTERN AVE., SUITE A-638, HENDERSON /s/ S. Matthew Schultz 18 Feb 2026 0001625587

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CLSK Common Stock Options Exercise $0 +20,525 +0.88% $0.000000 2,343,146 13 Feb 2026 Direct
transaction CLSK Common Stock Options Exercise $0 +216,125 +9.2% $0.000000 2,559,271 13 Feb 2026 Direct
transaction CLSK Common Stock Tax liability $879,952 -95,095 -3.7% $9.25 2,464,176 18 Feb 2026 Direct F1
transaction CLSK Common Stock Tax liability $83,385 -9,031 -0.37% $9.23 2,455,145 18 Feb 2026 Direct F2
holding CLSK Common Stock 2,322,621 13 Feb 2026 Direct
holding CLSK Common Stock 480,000 13 Feb 2026 By S M Schultz Irrevocable Trust
holding CLSK Common Stock 40,996 13 Feb 2026 By Spouse
holding CLSK Series A Preferred 500,000 13 Feb 2026 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction CLSK Restricted Stock Units Options Exercise $0 -216,125 -17% $0.000000 1,080,625 13 Feb 2026 Common Stock 216,125 $0.000000 Direct F6
transaction CLSK Restricted Stock Units Options Exercise $0 -20,525 -13% $0.000000 143,673 13 Feb 2026 Common Stock 20,525 $0.000000 Direct F6
holding CLSK Employee Stock Options (Right to Buy) 400,000 13 Feb 2026 Common Stock 400,000 $23.00 Direct F3
holding CLSK Restricted Stock Units 627,753 13 Feb 2026 Common Stock 627,753 $0.000000 Direct F4
holding CLSK Restricted Stock Units 1,296,750 13 Feb 2026 Common Stock 1,296,750 $0.000000 Direct F5
holding CLSK Restricted Stock Units 1,729,000 13 Feb 2026 Common Stock 1,729,000 $0.000000 Direct F4
holding CLSK Restricted Stock Units 164,198 13 Feb 2026 Common Stock 164,198 $0.000000 Direct F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 This is a weighted average of prices for sales made on February 18, 2026, ranging from $9.0901 to $9.4101. Upon request, the Reporting Person will provide to the SEC, the Issuer, or any security holder of the Issuer full information regarding the number of shares sold at each separate price.
F2 This is a weighted average of prices for sales made on February 18, 2026, ranging from $9.2274 to $9.2700. Upon request, the Reporting Person will provide to the SEC, the Issuer, or any security holder of the Issuer full information regarding the number of shares sold at each separate price.
F3 These Options were granted on April 16, 2021 and vested in equal monthly installments over 36 months.
F4 These RSUs vest in equal annual installments over three years on September 4, 2026, September 4, 2027, and September 4, 2028.
F5 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.
F6 These RSUs vest in equal quarterly installments on 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.