[144] ESS Tech, Inc. SEC Filing

Rhea-AI Filing Summary

Form 144 filed for ESS Tech, Inc. (GWH). The notice reports a proposed sale of 3,000 common shares via Morgan Stanley Smith Barney on 09/17/2025 with an aggregate market value of $4,830.30. The filing shows the shares were acquired as restricted stock on 02/20/2025 (1,785 shares) and 05/20/2025 (1,215 shares), with payment dates matching acquisition dates. It discloses the issuer has 14,189,663 shares outstanding. The filer also reported multiple recent sales by Anthony A Rabb in August and September 2025 totaling 19,836 shares for gross proceeds of $28,378.12 across four transactions. The notice includes the standard representation that the seller is not aware of undisclosed material adverse information.

Insights

Securities Analyst

TL;DR Insider plans to sell a small block of shares; multiple recent dispositions are disclosed.

The filing documents a proposed sale of 3,000 common shares and lists four recent sales by the same individual totaling 19,836 shares with stated gross proceeds of $28,378.12. Acquisition dates for the shares to be sold are 02/20/2025 and 05/20/2025 as restricted stock from the issuer. The disclosed aggregate market value for the 3,000-share block is $4,830.30 and the issuer's outstanding share count is reported as 14,189,663. From a market-impact perspective, the 3,000-share proposed sale represents a de minimis fraction of total outstanding shares per the filing; the document is a routine compliance notice rather than substantive operational disclosure.

Corporate Governance Expert

TL;DR Filing is a standard Rule 144 notice showing distribution of recently vested restricted stock and routine attestations.

The notice indicates the securities were acquired as restricted stock directly from the issuer and that the seller attests to the absence of undisclosed material adverse information. The filing’s content is procedural: it identifies the broker, the acquisition method, dates, amounts, recent sales history, and the seller’s signature statement. There are no governance actions, management changes, or corporate events disclosed in this form.

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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	3000	4830.30	14189663	09/17/2025	NYSE

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	05/20/2025	Restricted Stock	Issuer			1215	05/20/2025	Not Applicable
Common	02/20/2025	Restricted Stock	Issuer			1785	02/20/2025	Not Applicable

* 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
ANTHONY A RABB 26440 SW Parkway Ave Bldg. 83 Wilsonville OR 97070	Common	09/10/2025	4774	6790.54
ANTHONY A RABB 26440 SW Parkway Ave Bldg. 83 Wilsonville OR 97070	Common	09/04/2025	5001	6375.27
ANTHONY A RABB 26440 SW Parkway Ave Bldg. 83 Wilsonville OR 97070	Common	08/29/2025	5062	7538.84
ANTHONY A RABB 26440 SW Parkway Ave Bldg. 83 Wilsonville OR 97070	Common	08/21/2025	4999	7673.47

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)