Form 144: Siebert Financial reports activity (CLSK)

Rhea-AI Filing Summary

Siebert Financial Corp. submitted a Form 144 disclosure concerning transactions in Common Stock. The filing lists the vesting of 2,677 RSUs on 05/13/2026 tied to CleanSpark, Inc. and shows prior sales by Scott Eugene Garrison during February 2026 (quantities and dollar figures appear in the filing).

Key Figures

RSUs vesting: 2,677 shares Reported quantity (entry): 1,192 Prior sale quantity: 20,099 +2 more

5 metrics

RSUs vesting 2,677 shares Vesting of RSUs on 05/13/2026 tied to CleanSpark, Inc.

Reported quantity (entry) 1,192 Numeric entry shown alongside Common Stock in the filing

Prior sale quantity 20,099 Listed under "Securities Sold During The Past 3 Months" for Scott Eugene Garrison (02/18/2026)

Prior sale dollar figure 185,984.09 Dollar amount associated with a February 18, 2026 sale by Scott Eugene Garrison

Numeric entry 11,005.97 Numeric value shown in the filing adjacent to a February 18, 2026 line

Key Terms

Form 144, RSUs, Vesting of RSUs

3 terms

Form 144 regulatory

"144: Securities Sold During The Past 3 Months"

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.

RSUs financial

"Vesting of RSUs | CleanSpark, Inc."

RSUs, or restricted stock units, are a form of company shares given to employees as part of their compensation. They are typically awarded with certain restrictions, such as a waiting period before they can be fully owned or sold, similar to earning a gift that becomes fully yours over time. For investors, RSUs can impact a company's stock offerings and reflect how much the company relies on stock-based incentives to attract and retain talent.

Vesting of RSUs financial

"Common Stock | 05/13/2026 | Vesting of RSUs"

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	1192	16664.94	256633949	05/14/2026	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	05/13/2026	Vesting of RSUs	CleanSpark, Inc.			2677	05/13/2026	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
Scott Eugene Garrison 10624 S. Eastern Ave. Suite A-638 Henderson NV 89052	Common Stock	02/18/2026	1192	11005.97
Scott Eugene Garrison 10624 S. Eastern Ave. Suite A-638 Henderson NV 89052	Common Stock	02/18/2026	20099	185984.09

144: Remarks and Signature

Remarks

Date of Notice

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

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

FAQ

What does the CLSK Form 144 disclose?

It reports proposed or notified sales of Common Stock and a vesting event. The filing lists 2,677 RSUs vesting on 05/13/2026 and prior reported sales in February 2026.

Who is named as having sold shares in the filing?

The filing lists Scott Eugene Garrison with sales recorded in February 2026. Specific quantities and dollar figures are shown in the filing for those transactions.

How many RSUs vested according to the filing?

The filing shows 2,677 RSUs vested on 05/13/2026 with the descriptor "Vesting of RSUs" tied to CleanSpark, Inc. as stated in the excerpt.

Does the Form 144 show exact sale amounts?

Yes; the excerpt contains numeric entries for prior sales including figures such as 11,005.97, 110,05.97, and 20099 alongside associated dates, as presented in the filing text.