CleanSpark's Taylor Monnig plans 297,616-share sale

Rhea-AI Filing Summary

CLEANSPARK, INC. (CLSK) received a notice that Taylor Monnig intends to sell shares of its common stock under Rule 144. The filing covers up to 297,616 shares to be sold following the vesting of restricted stock units on September 4, 2026, through broker Siebert Financial Corp. The seller also reports a prior sale of shares within the past three months and states that the planned transaction will be made pursuant to a Rule 10b5-1(c) trading plan adopted on May 13, 2026.

Key Figures

Shares to be sold under Rule 144: 297,616 shares Shares sold in past 3 months: 265 shares RSU vesting date: September 4, 2026 +2 more

5 metrics

Shares to be sold under Rule 144 297,616 shares Planned sale of CLEANSPARK, INC. common stock following RSU vesting on September 4, 2026

Shares sold in past 3 months 265 shares Sale of CLEANSPARK, INC. common stock reported for August 14, 2026

RSU vesting date September 4, 2026 Date tied to the 297,616 shares to be sold

Rule 10b5-1(c) plan adoption date May 13, 2026 Date the trading plan governing the planned sale was adopted

Date of notice September 4, 2026 Date on which the Form 144 notice was signed and filed

Key Terms

Rule 144, Rule 10b5-1(c) plan, Vesting of RSUs, Form 144

4 terms

Rule 144 regulatory

"Information is to be given not only as to the person for whose account the securities are to be sold..."

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 on May 13, 2026."

Vesting of RSUs financial

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

Form 144 regulatory

"144: Filer Information 144: Issuer Information 144: Securities Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

FAQ

What does the Form 144 filing disclose for CLEANSPARK, INC. (CLSK)?

It discloses that Taylor Monnig intends to sell up to 297,616 shares of CLEANSPARK, INC. common stock under Rule 144, following the vesting of RSUs on September 4, 2026, with the sale to be executed through Siebert Financial Corp.

How many CLSK shares are planned to be sold under this Rule 144 notice?

The notice states that up to 297,616 shares of CLEANSPARK, INC. common stock are to be sold. These shares relate to a vesting of RSUs dated September 4, 2026.

Were any CLEANSPARK (CLSK) shares sold by Taylor Monnig in the last three months?

Yes. The Form 144 indicates that 265 shares of CLEANSPARK, INC. common stock were sold on August 14, 2026, and this prior sale is reported in the “Securities Sold During The Past 3 Months” section.

Is the planned CLSK stock sale tied to a Rule 10b5-1 trading plan?

Yes. The remarks state that the transaction will be made pursuant to a Rule 10b5-1(c) plan that was adopted on May 13, 2026, which pre-arranges trading parameters for the sale.

What is the key date related to the RSU vesting for this CLSK Form 144?

The Form 144 identifies September 4, 2026 as the date for the vesting of RSUs that correspond to the 297,616 shares of CLEANSPARK, INC. common stock that may be sold.

Which broker is listed for the planned sale of CLEANSPARK (CLSK) shares?

The securities information section lists Siebert Financial Corp., located at 535 Fifth Avenue, 4th Floor, New York, NY, as associated with the common stock to be sold under this Form 144 notice.

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

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Available on EDGAR 09/04/2026 - 09:06 PM Accepted by SEC EDGAR 09/04/2026 - 09:06 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	0002022141
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	Monnig Taylor
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	146874	1847670	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.			297616	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Taylor Monnig 10624 S. Eastern Ave. Suite A-638 Henderson NV 89052	Common Stock	08/14/2026	265	3050

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/ Taylor Monnig
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)