CleanSpark officer plans sale of 153,653 shares

An officer of CLEANSPARK, INC. has filed a Rule 144 notice to potentially sell 153,653 vested RSU shares under a pre-arranged Rule 10b5-1 trading plan.

Rhea-AI Filing Summary

CLEANSPARK, INC. (CLSK) has a notice of proposed sale of common stock filed on behalf of officer Brian J. Carson under Rule 144. The notice covers up to 153,653 shares of CleanSpark common stock associated with the vesting of restricted stock units on September 4, 2026.

The proposed sales are to be made pursuant to a Rule 10b5-1(c) trading plan adopted on May 13, 2026, with September 4, 2026 shown as the relevant transaction and acquisition date for the RSU vesting.

Key Figures

Shares proposed to be sold: 153,653 shares RSU vesting date: September 4, 2026 Rule 10b5-1(c) plan adoption date: May 13, 2026 +1 more

4 metrics

Shares proposed to be sold 153,653 shares Common stock under Rule 144 associated with vesting of RSUs

RSU vesting date September 4, 2026 Date tied to the vesting of RSUs and proposed sale of shares

Rule 10b5-1(c) plan adoption date May 13, 2026 Plan governing proposed Rule 144 sales

Date of Rule 144 notice September 4, 2026 Date the Form 144 notice is dated

Key Terms

Rule 144, Rule 10b5-1(c) plan, vesting of RSUs, restricted stock units

4 terms

Rule 144 regulatory

"This transaction will be made pursuant to a Rule 10b5-1(c) plan"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Rule 10b5-1(c) plan regulatory

"This transaction will be made pursuant to a Rule 10b5-1(c) plan adopted"

vesting of RSUs financial

"Common Stock | 09/04/2026 | Vesting of RSUs | CleanSpark, Inc."

restricted stock units financial

"Vesting of RSUs"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

FAQ

What does the Form 144 filing disclose for CLSK?

The filing discloses that officer Brian J. Carson has notified of a proposed sale under Rule 144 of up to 153,653 shares of CleanSpark, Inc. common stock, tied to the vesting of RSUs on September 4, 2026, under a Rule 10b5-1(c) plan.

How many CLSK shares are covered by this Rule 144 notice?

The notice covers up to 153,653 shares of CleanSpark, Inc. common stock. These shares are associated with the vesting of restricted stock units (RSUs) dated September 4, 2026.

Who is the insider involved in this CLSK Form 144?

The notice is filed for Brian J. Carson, identified as an officer of CleanSpark, Inc. The filing relates to potential sales of common stock acquired through the vesting of RSUs.

What trading plan governs the proposed CLSK share sales?

The proposed sales will be made pursuant to a Rule 10b5-1(c) plan that was adopted on May 13, 2026. The filing notes this plan in the remarks section.

When are the CLSK RSUs vesting and tied to this Form 144?

The RSUs tied to this notice are shown as vesting on September 4, 2026. The same date appears in the section describing the vesting of RSUs and the proposed transaction date.

What is the date of the Rule 144 notice for CLSK?

The Date of Notice on the Form 144 is September 4, 2026. This corresponds to the date associated with the vesting-related transaction in the securities-to-be-sold section.

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

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Available on EDGAR 09/04/2026 - 09:08 PM Accepted by SEC EDGAR 09/04/2026 - 09:08 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0002040721
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	CLEANSPARK, INC.
SEC File Number	001-39187
Address of Issuer	10624 S. Eastern Ave. Suite A - 638 Henderson NEVADA 89052
Phone	(702)-989-7692
Name of Person for Whose Account the Securities are To Be Sold	Carson Brian Jay
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common Stock	Siebert Financial Corp. 535 Fifth Avenue, 4th Floor New York NY 10017	60463	760625	257414823	09/04/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common Stock	09/04/2026	Vesting of RSUs	CleanSpark, Inc.			153653	09/04/2026	N/A - Vesting of RSUs

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks	This transaction will be made pursuant to a Rule 10b5-1(c) plan adopted on May 13, 2026.
Date of Notice	09/04/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Brian J. Carson
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)