STOCK TITAN

CleanSpark CTO Taylor Monnig sells 3,335 shares

As of September 30, 2026, the CTO and COO's reported holdings included options for 15,000 shares at $5.98 and 25,000 at $6.00.

(Moderate)

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Form Type
4

Rhea-AI Filing Summary

CleanSpark, Inc. (CLSK) officer Taylor Monnig, CTO and COO, reported that 33,350 restricted stock units vested on September 30, 2026, and 33,350 common shares were acquired. On October 1, 2026, Monnig sold 3,335 common shares at a weighted average price of $12.3303 per share under a Rule 10b5-1(c) plan adopted May 13, 2026; 13,123 shares were delivered or withheld for payment of exercise price or tax liability.

Insider Monnig Taylor
Role CTO, COO
Sold 3,335 shs ($41K)
Approx. gross sale proceeds $41K
Approx. exercise cost $0.00
Type Security Shares Price Value
Exercise Price or Tax Liability Common Stock F1, F2 13,123 $12.3303 $162K
Sale Common Stock F1, F2 3,335 $12.3303 $41K
Exercise Restricted Stock Units F5 33,350 $0.00 $0.00
Exercise Common Stock 33,350 $0.00 $0.00
holding Employee Stock Option (Right to Buy) F3 -- -- --
holding Employee Stock Option (Right to Buy) F4 -- -- --
holding Restricted Stock Units F5 -- -- --
holding Restricted Stock Units F6 -- -- --
holding Restricted Stock Units F7 -- -- --
holding Restricted Stock Units F6 -- -- --
holding Restricted Stock Units F8 -- -- --
holding Restricted Stock Units F9 -- -- --
holding Performance Stock Units F10 -- -- --
holding Performance Stock Units F11 -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Restricted Stock Units — 1,001,511 contracts (Direct); Common Stock — 656,728 shares (Direct); Employee Stock Option (Right to Buy) — 40,000 contracts (Direct); Performance Stock Units — 1,040,500 contracts (Direct)
Footnotes (11)
  1. F1. This transaction was made pursuant to a Rule 10b5-1(c) plan adopted on May 13, 2026.
  2. F2. This is a weighted average of prices for all sales made on October 1, 2026 ranging from $12.2859 to $12.4201. 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.
  3. F3. These Options were granted on August 10, 2022 and vested in equal annual installments over three years.
  4. F4. These Options were granted on July 7, 2023 and vested in equal monthly installments over 36 months.
  5. F5. These RSUs vested on September 30, 2026.
  6. F6. These RSUs vest in equal annual installments over three years on September 4, 2027, and September 4, 2028.
  7. F7. These RSUs vest in equal semiannual installments over three years on February 13, 2027, September 4, 2027, February 13, 2028, and September 4, 2028.
  8. F8. These RSUs vest in equal quarterly installments on December 3, 2026, February 12, 2027, May 13, 2027, August 13, 2027, and December 3, 2027.
  9. F9. These RSUs vest in equal annual installments over three years on March 20, 2027, March 20, 2028, and March 20, 2029, subject to the Reporting Person's continued employment or service with the Issuer through each such date.
  10. F10. Vesting of these Long-Term Incentive Plan ("LTIP") awards is contingent on the common stock achieving a specified target market price of at least $18.80 based on a 20-trading day average during the period ending March 20, 2027, subject to the Reporting Person remaining employed by the Issuer on the vesting date of March 20, 2029. The reported LTIP awards do not include LTIP awards in respect of a maximum of 210,000 shares of common stock for which such awards will vest in accordance with their terms upon achievement of specified performance goals tied to gross power under leases to customers for data centers, with threshold performance at 600 MW gross and maximum payout at 800 MW gross, during the period ending March 20, 2027, subject to the Reporting Person remaining employed by the Issuer on the vesting date of March 20, 2029.
  11. F11. The number of shares under these Strategic Transformation Performance Awards ("STPA") represents the maximum number of common shares for which the STPAs will vest upon the Issuer's common stock achieving target market prices, based on a 20-trading day average, with threshold performance at $47 per share and maximum payout at $94 per share, before September 30, 2030, subject to the Reporting Person remaining employed by the Issuer on September 30, 2030. The reported STPA awards do not include 830,500 shares of common stock that vest upon achievement of performance goals tied to power under leases to customers for data centers that are operationally ready to host IT equipment and deliver services (RFS), with threshold performance at 1.0 GW and maximum payout at 2.5 GW, before September 30, 2030, subject to the Reporting Person remaining employed by the Issuer on September 30, 2030.
Shares sold 3,335 shares October 1, 2026
Weighted average sale price $12.3303 per share October 1, 2026; sale prices ranged from $12.2859 to $12.4201 per share
Shares delivered or withheld 13,123 shares For payment of exercise price or tax liability on October 1, 2026
Restricted stock units vested 33,350 units September 30, 2026; 33,350 common shares were acquired
Employee stock options 15,000 underlying shares; $5.98 exercise price Expiration date: August 10, 2032
Employee stock options 25,000 underlying shares; $6.00 exercise price Expiration date: July 6, 2033
Rule 10b5-1(c) plan regulatory
"pursuant to a Rule 10b5-1(c) plan adopted on May 13, 2026"
weighted average financial
"This is a weighted average of prices for all sales made on October 1, 2026"
A weighted average is a way of calculating an overall number when some items matter more than others by giving each item a different level of importance, or weight. Investors use weighted averages to combine figures like prices, returns or earnings so the result reflects the size or significance of each part — like grading a class where a final exam counts more than a quiz, producing a score that better represents true performance.
Long-Term Incentive Plan financial
"Long-Term Incentive Plan ("LTIP") awards"
A long-term incentive plan is a company program that pays executives or employees with stock, options, or cash tied to multi-year performance goals, where the rewards become theirs only after meeting conditions over time. Think of it as a delayed bonus or retirement-style reward that aligns employees’ interests with shareholders by encouraging them to boost long-term value; investors watch these plans because they affect pay costs, share dilution and management incentives.
Strategic Transformation Performance Awards financial
"These Strategic Transformation Performance Awards ("STPA")"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many CLSK shares did Taylor Monnig sell, and at what price?

Taylor Monnig sold 3,335 shares at a weighted average of $12.3303 per share on October 1, 2026. The sales were made under a Rule 10b5-1(c) plan adopted May 13, 2026, and ranged from $12.2859 to $12.4201 per share.

What stock options did CLSK's CTO and COO report?

As of September 30, 2026, Taylor Monnig's reported holdings included options covering 15,000 common shares exercisable at $5.98 and expiring August 10, 2032, and options covering 25,000 common shares exercisable at $6.00 and expiring July 6, 2033.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED 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
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Monnig Taylor

(Last)(First)(Middle)
10624 S. EASTERN AVE.
SUITE A-638

(Street)
HENDERSON NEVADA 89052

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
CLEANSPARK, INC. [ CLSK ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
CTO, COO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
09/30/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)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)
CodeVAmount(A) or (D)Price
Common Stock319,918D
Common Stock09/30/2026M33,350A$0353,268D
Common Stock10/01/2026F13,123(1)D$12.3303(2)340,145D
Common Stock10/01/2026S3,335(1)D$12.3303(2)336,810D
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 (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)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 (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (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: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Employee Stock Option (Right to Buy)$5.98 (3)08/10/2032Common Stock15,00015,000D
Employee Stock Option (Right to Buy)$6 (4)07/06/2033Common Stock25,00025,000D
Restricted Stock Units$0 (5) (5)Common Stock33,35033,350D
Restricted Stock Units$009/30/2026M33,35009/30/2026 (5)Common Stock33,350$00D
Restricted Stock Units$0 (6) (6)Common Stock264,318264,318D
Restricted Stock Units$0 (7) (7)Common Stock180,500180,500D
Restricted Stock Units$0 (6) (6)Common Stock240,667240,667D
Restricted Stock Units$0 (8) (8)Common Stock2,6762,676D
Restricted Stock Units$0 (9) (9)Common Stock280,000280,000D
Performance Stock Units$0 (10) (10)Common Stock210,000210,000D
Performance Stock Units$0 (11) (11)Common Stock830,500830,500D
Explanation of Responses:
1. This transaction was made pursuant to a Rule 10b5-1(c) plan adopted on May 13, 2026.
2. This is a weighted average of prices for all sales made on October 1, 2026 ranging from $12.2859 to $12.4201. 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.
3. These Options were granted on August 10, 2022 and vested in equal annual installments over three years.
4. These Options were granted on July 7, 2023 and vested in equal monthly installments over 36 months.
5. These RSUs vested on September 30, 2026.
6. These RSUs vest in equal annual installments over three years on September 4, 2027, and September 4, 2028.
7. These RSUs vest in equal semiannual installments over three years on February 13, 2027, September 4, 2027, February 13, 2028, and September 4, 2028.
8. These RSUs vest in equal quarterly installments on December 3, 2026, February 12, 2027, May 13, 2027, August 13, 2027, and December 3, 2027.
9. These RSUs vest in equal annual installments over three years on March 20, 2027, March 20, 2028, and March 20, 2029, subject to the Reporting Person's continued employment or service with the Issuer through each such date.
10. Vesting of these Long-Term Incentive Plan ("LTIP") awards is contingent on the common stock achieving a specified target market price of at least $18.80 based on a 20-trading day average during the period ending March 20, 2027, subject to the Reporting Person remaining employed by the Issuer on the vesting date of March 20, 2029. The reported LTIP awards do not include LTIP awards in respect of a maximum of 210,000 shares of common stock for which such awards will vest in accordance with their terms upon achievement of specified performance goals tied to gross power under leases to customers for data centers, with threshold performance at 600 MW gross and maximum payout at 800 MW gross, during the period ending March 20, 2027, subject to the Reporting Person remaining employed by the Issuer on the vesting date of March 20, 2029.
11. The number of shares under these Strategic Transformation Performance Awards ("STPA") represents the maximum number of common shares for which the STPAs will vest upon the Issuer's common stock achieving target market prices, based on a 20-trading day average, with threshold performance at $47 per share and maximum payout at $94 per share, before September 30, 2030, subject to the Reporting Person remaining employed by the Issuer on September 30, 2030. The reported STPA awards do not include 830,500 shares of common stock that vest upon achievement of performance goals tied to power under leases to customers for data centers that are operationally ready to host IT equipment and deliver services (RFS), with threshold performance at 1.0 GW and maximum payout at 2.5 GW, before September 30, 2030, subject to the Reporting Person remaining employed by the Issuer on September 30, 2030.
/s/ Taylor Monnig10/01/2026
** Signature of Reporting PersonDate
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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

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