Brian J. Carson - 04 Sep 2026 Form 4 Insider Report for CLEANSPARK, INC. (CLSK)

Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
4
Accepted by SEC
09 Sep 2026, 21:38:03 UTC
Prior SEC filing
24 Mar 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Brian J. Carson

Key filing fact

Brian J. Carson filed Form 4 for CLEANSPARK, INC. (CLSK) on 09 Sep 2026.

Key facts

  • This page summarizes Brian J. Carson's Form 4 filing for CLEANSPARK, INC. (CLSK).
  • 9 reported transactions and 11 derivative rows are listed below.
  • Accepted by SEC: 09 Sep 2026, 21:38.

Change

  • Previous filing in this sequence was filed on 24 Mar 2026.
  • Current net transaction value: $0.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002040721 Primary reporting owner

Carson Brian Jay

Relationship
Chief Accounting Officer
Address
10624 S. EASTERN AVE., SUITE A-638, HENDERSON
Signature
/s/ Brian J. Carson
Signature date
09 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

CLSK transaction

Common Stock

Options Exercise

Transaction value
Shares
+93,612
Change %
+198%
Price
$0.000000*
Shares after
140,933
Date
04 Sep 2026
Ownership
Direct
CLSK transaction

Common Stock

Tax liability

Transaction value
Shares
-36,836
Change %
-26%
Price
$13.34*
Shares after
104,097
Date
08 Sep 2026
Ownership
Direct
Footnotes
F1, F3
CLSK transaction

Common Stock

Options Exercise

Transaction value
Shares
+16,375
Change %
+16%
Price
$0.000000*
Shares after
120,472
Date
04 Sep 2026
Ownership
Direct
CLSK transaction

Common Stock

Tax liability

Transaction value
Shares
-6,444
Change %
-5.3%
Price
$12.61*
Shares after
114,028
Date
04 Sep 2026
Ownership
Direct
Footnotes
F1, F4
CLSK transaction

Common Stock

Options Exercise

Transaction value
Shares
+43,666
Change %
+38%
Price
$0.000000*
Shares after
157,694
Date
04 Sep 2026
Ownership
Direct
CLSK transaction

Common Stock

Tax liability

Transaction value
Shares
-17,183
Change %
-11%
Price
$13.34*
Shares after
140,511
Date
08 Sep 2026
Ownership
Direct
Footnotes
F1, F3
CLSK holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
47,321
Date
04 Sep 2026
Ownership
Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

CLSK transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares
-93,612
Change %
-33%
Price
$0.000000*
Shares after
187,225
Date
04 Sep 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
93,612
Exercise price
$0.000000
Footnotes
F7
CLSK transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares
-16,375
Change %
-20%
Price
$0.000000*
Shares after
65,500
Date
04 Sep 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
16,375
Exercise price
$0.000000
Footnotes
F8
CLSK transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares
-43,666
Change %
-33%
Price
$0.000000*
Shares after
87,334
Date
04 Sep 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
43,666
Exercise price
$0.000000
Footnotes
F7
CLSK holding Derivative

Employee Stock Options (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
12,500
Date
04 Sep 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
12,500
Exercise price
$2.83
Footnotes
F2
CLSK holding Derivative

Employee Stock Options (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
10,000
Date
04 Sep 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
10,000
Exercise price
$6.00
Footnotes
F5
CLSK holding Derivative

Employee Stock Options (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
5,000
Date
04 Sep 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
5,000
Exercise price
$16.15
Footnotes
F6
CLSK holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
280,837
Date
04 Sep 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
280,837
Exercise price
$0.000000
Footnotes
F7
CLSK holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
81,875
Date
04 Sep 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
81,875
Exercise price
$0.000000
Footnotes
F8
CLSK holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
131,000
Date
04 Sep 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
131,000
Exercise price
$0.000000
Footnotes
F7
CLSK holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
100,000
Date
04 Sep 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
100,000
Exercise price
$0.000000
Footnotes
F9
CLSK holding Derivative

Performance Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
75,000
Date
04 Sep 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
75,000
Exercise price
$0.000000
Footnotes
F10
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 10 footnotes

Footnote F1

This transaction was made pursuant to a Rule 10b5-1(c) plan adopted on May 13, 2026.

Footnote F2

These Options were granted on October 14, 2022 and vest in equal monthly installments over 36 months.

Footnote F3

This is a weighted average of prices for all sales made on September 8-9, 2026 ranging from $13.1901 to $13.7001. 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 date and price.

Footnote F4

This is a weighted average of prices for all sales made on September 4, 2026 ranging from $12.5601 to $12.6700. 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.

Footnote F5

These Options were granted on July 7, 2023 and vest in equal monthly installments over 36 months.

Footnote F6

These Options were granted on May 3, 2024 and vest in equal monthly installments over 36 months.

Footnote F7

These RSUs vest in equal annual installments over three years on September 4, 2026, September 4, 2027, and September 4, 2028.

Footnote F8

These RSUs vest in equal semiannual installments over three years on September 4, 2026, February 13, 2027, September 4, 2027,February 13, 2028, and September 4, 2028.

Footnote 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.

Footnote 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 75,000 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.

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