EOSE files notice to sell 30,000 shares

EOSE submitted a Form 144 notice reporting a proposed sale of 30,000 common shares on 05/28/2026 arising from a stock option exercise.

Rhea-AI Filing Summary

EOSE submitted a Form 144 notice reporting a proposed sale of 30,000 common shares on 05/28/2026 arising from a stock option exercise. The filing also records recently reported dispositions by Marian Walters of 7,681 shares on 05/19/2026 and 22,319 shares on 05/20/2026.

Insights

Securities Counsel

Form 144 notifies a proposed resale tied to option exercise.

The filing lists a proposed sale of 30,000 common shares dated 05/28/2026

Timing and proceeds treatment are transactional details; subsequent public sales will be reported separately in transaction filings.

Corporate Governance Analyst

Recent insider dispositions are disclosed as part of Section 144 reporting.

The excerpt shows prior disposals by Marian Walters of 7,681 and 22,319 shares on 05/19/2026 and 05/20/2026, respectively.

These appear as reported transactions; the filing itself is an administrative notice and does not confirm execution details beyond the dates listed.

Key Figures

Proposed resale: 30,000 shares Prior sale 1: 7,681 shares Prior sale 2: 22,319 shares +1 more

4 metrics

Proposed resale 30,000 shares stock option exercise on <date>05/28/2026</date>

Prior sale 1 7,681 shares disposed on <date>05/19/2026</date> by Marian Walters

Prior sale 2 22,319 shares disposed on <date>05/20/2026</date> by Marian Walters

Form type Form 144 notice of proposed sale

Key Terms

Form 144, Stock Option Exercise, Securities Sold During The Past 3 Months

3 terms

Form 144 regulatory

"Securities To Be Sold section listing proposed sale notice"

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.

Stock Option Exercise financial

"Securities To Be Sold entry describing the sale method"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

Securities Sold During The Past 3 Months regulatory

"Section showing Marian Walters disposals on 05/19/2026 and 05/20/2026"

FAQ

What does EOSE's Form 144 report?

It reports a proposed resale of 30,000 common shares from a stock option exercise dated 05/28/2026. The notice documents the intended sale method tied to that exercise without detailing execution or proceeds.

Who sold shares recently according to the filing for EOSE?

Marian Walters is listed as having disposed of 7,681 shares on 05/19/2026 and 22,319 shares on 05/20/2026. These appear in the filing's "Securities Sold During The Past 3 Months" section.

Are the proceeds or purchasers disclosed in the EOSE excerpt?

No; the excerpt identifies the proposed sale and dates but does not state purchaser identities or proceeds. The filing shows the sale method as a stock option exercise for 05/28/2026.

Does this Form 144 confirm the shares were sold?

No; the Form 144 is a notice of a proposed sale of 30,000 shares related to an option exercise on 05/28/2026. Execution and settlement would be reflected in subsequent transaction reports.

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

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Accepted by SEC EDGAR 05/28/2026 - 04:31 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	0001782905
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	Eos Energy Enterprises, Inc.
SEC File Number	001-39291
Address of Issuer	3920 Park Avenue Edison NEW JERSEY 08820
Phone	7322258400
Name of Person for Whose Account the Securities are To Be Sold	Marian Walters
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	UBS Financial Services Inc 1000 Harbor Blvd 3rd Floor Weehawken NJ 07086	30000	275400	339514027	05/28/2026	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	05/28/2026	Stock Option Exercise	Issuer			30000	05/28/2026	N/A

* 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
Marian Walters 3920 Park Avenue Edison NJ 08820	Common	05/19/2026	7681	54304
Marian Walters 3920 Park Avenue Edison NJ 08820	Common	05/20/2026	22319	157795

144: Remarks and Signature

Remarks
Date of Notice	05/28/2026
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/Mijo Suric, for UBS Financial Services Inc, as attorney-in-fact for Marian Walters
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)