Form 4: CLSK Insider Sale at $9.56 and RSU Vesting Through 2027

Rhea-AI Filing Summary

Taylor Monnig, Chief Technology Officer of CleanSpark, Inc. (ticker: CLSK), reported a series of equity transactions on Form 4. The filing shows a sale of 128,989 shares of Common Stock (disposed) and a subsequent reported sale of 211 shares on 08/14/2025 at a weighted average price of $9.5644. The filing also records transfers and vesting activity of restricted stock units (RSUs): 66,700 RSUs and 5,353 RSUs held as derivative securities, plus an RSU vesting event of 535 shares with multiple future vesting installments. The RSU schedules include 50% vesting for one award on 09/30/2025 and 09/30/2026, and a series of installment vesting dates through 12/03/2027. The reporting person beneficially owned approximately 129,313 shares following the reported transactions.

Positive

• None.

Negative

• Insider disposed of 128,989 shares, indicating a significant sale reported on Form 4 without contextual percentage of total holdings
• Additional sale of 211 shares at a weighted average price of $9.5644 on 08/14/2025, representing realized insider selling activity

Insights

Securities Analyst

TL;DR: Insider reported share disposals and scheduled RSU vesting; transaction prices are disclosed but no cash/percentage context for materiality is provided.

The Form 4 discloses multiple non-derivative disposals and RSU-related transfers for the CTO. Key facts are explicit: a large listed disposal of 128,989 shares and a reported sale of 211 shares at a weighted average price of $9.5644 on 08/14/2025. The filing also clarifies RSU vesting schedules through 2027, including a 50%/50% vesting pattern for one grant. From a securities-transaction perspective, the form is complete: it states transaction codes, post-transaction beneficial ownership (about 129,313 shares), and provides the sale price range used to calculate the weighted average. The filing does not provide information about holdings as a percentage of outstanding shares or the issuer’s market capitalization, so materiality to investors cannot be quantified from this form alone.

Corporate Governance Expert

TL;DR: The filing documents routine insider sales and RSU vesting mechanics; disclosures meet Section 16 requirements but lack context on intent.

The Form 4 fulfills disclosure obligations by reporting the officer’s dispositions and the detailed vesting timetable for multiple RSU grants. The explanation includes the weighted average sale price for shares sold on 08/14/2025 and explicit vesting dates for future installments through 12/03/2027. This level of specificity supports transparency around executive compensation realizations. The filing does not indicate a 10b5-1 plan or other intent-based classification beyond the transaction codes shown, so governance interpretation must rely solely on the stated dates and codes. Absent additional corporate disclosures, this appears to be a standard insider liquidity/compensation event rather than a governance exception or compliance issue.

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

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

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 NV 89052

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
CLEANSPARK, INC. [ CLSK ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Technology Officer

3. Date of Earliest Transaction (Month/Day/Year)
08/13/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock								128,989	D
Common Stock	08/13/2025		M		535	A	$0	129,524	D
Common Stock	08/14/2025		F		211	D	$9.5644(1)	129,313	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 (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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	$0							(2)	(2)	Common Stock	66,700		66,700(3)	D
Restricted Stock Units	$0							(4)	(4)	Common Stock	5,353		5,353(3)	D
Restricted Stock Units	$0	08/13/2025		M			535	08/13/2025	(4)	Common Stock	535	$0	4,818	D

Explanation of Responses:

1. This is a weighted average of prices for all sales made on August 14, 2025 ranging from $9.3979 to $9.6601. 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.

2. These RSUs vest 50% on September 30, 2025 and 50% on September 30, 2026.

3. These RSUs were previously reported on Form 4, Table 1 as Common Stock with the vesting schedule provided in a footnote and are now being transferred from Table 1 to Table 2 on this Form 4 for ease of form preparation.

4. These RSUs vest in equal installments on August 13, 2025, 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.

	/s/ Taylor Monnig	08/14/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What transactions did CleanSpark (CLSK) insider Taylor Monnig report on Form 4?

The filing reports a disposal of 128,989 common shares and a sale of 211 shares on 08/14/2025 at a weighted average price of $9.5644, plus RSU transfers and vesting activity.

How many shares did Taylor Monnig beneficially own after the reported transactions?

The Form 4 shows approximately 129,313 shares of common stock beneficially owned following the reported transactions.

What RSU vesting schedules were disclosed in the Form 4 for CLSK?

One RSU grant vests 50% on 09/30/2025 and 50% on 09/30/2026. Another set vests in equal installments across dates from 08/13/2025 through 12/03/2027.

What price was reported for the shares sold on 08/14/2025?

A weighted average sale price of $9.5644 is reported, derived from sale prices on that date ranging from $9.3979 to $9.6601.

Does the Form 4 indicate a 10b5-1 trading plan for these transactions?

The filing does not indicate that the transactions were made pursuant to a 10b5-1 plan; no 10b5-1 box or plan statement is provided in the content.