[Form 4] Eos Energy Enterprises, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Marian Walters, a director of Eos Energy Enterprises, Inc. (EOSE), reported an insider sale on 09/03/2025. The filing shows 50,000 shares of Common Stock were disposed of in multiple transactions at a weighted average price of $7.90, with trade prices ranging from $7.66 to $8.04. After the sale, Ms. Walters directly beneficially owned 133,794 shares and indirectly held 5,000 shares via the D. and M. Walters Family Trust. The form was signed by an attorney-in-fact on behalf of Ms. Walters.

Positive

• Clear disclosure of transaction date, number of shares sold, price range, and weighted average price
• Post-transaction beneficial ownership is provided for both direct and indirect holdings
• Filing executed by authorized representative, showing procedural compliance

Negative

• Director sale of 50,000 shares reported, which reduces insider ownership
• Sale executed in multiple transactions (prices ranged $7.66–$8.04), requiring further detail if more granularity is needed

Insights

Securities Analyst

TL;DR: Director sold 50,000 EOSE shares at a weighted average $7.90; remaining direct and indirect holdings are disclosed.

The Form 4 clearly reports an open-market disposition of 50,000 common shares by director Marian Walters on 09/03/2025, with prices between $7.66 and $8.04 and a weighted average of $7.90. The filing specifies post-transaction beneficial ownership: 133,794 shares directly and 5,000 indirectly via a family trust. The disclosure is complete on transactional details and includes an explanation footnote for the trust-held shares. This is a standard Section 16 reporting event providing transparency into insider activity.

Corporate Governance Expert

TL;DR: Proper Form 4 filing documents a director sale and trust holdings; no additional governance actions or amendments reported.

The document identifies Marian Walters as a director and shows the sale was reported on the required Form 4. The filing includes an authorization signature by an attorney-in-fact and explanatory footnotes clarifying price range and the trust relationship for indirect holdings. There are no other listed transactions, grants, or amendments in this filing. From a governance disclosure standpoint, the form meets routine reporting expectations.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Walters Marian

(Last) (First) (Middle)

C/O EOS ENERGY ENTERPRISES, INC.

3920 PARK AVENUE

(Street)

EDISON NJ 08820

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Eos Energy Enterprises, Inc. [ EOSE ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
09/03/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/03/2025		S		50,000	D	$7.9(1)	133,794	D
Common Stock								5,000	I	See footnote(2)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.66 to $8.04, inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

2. Shares of records held by David Walters and Marian Walters as trustees of the D. and M. Walters Family Trust dtd 7/6/2020.

Remarks:

	/s/ Michael Silberman as attorney-in-fact for Marian Walters	09/03/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Marian Walters report on the Form 4 for EOSE?

She reported a sale of 50,000 common shares on 09/03/2025 at a weighted average price of $7.90 and disclosed remaining holdings.

How many EOSE shares does Marian Walters own after the transaction?

133,794 shares directly and 5,000 shares indirectly via the D. and M. Walters Family Trust, per the filing.

At what prices were the EOSE shares sold?

Sale prices ranged from $7.66 to $8.04; the filing reports a weighted average price of $7.90 and notes multiple transactions.

When was the transaction reported on Form 4 filed?

The transaction date is 09/03/2025 and the form is signed by an attorney-in-fact for Marian Walters on that date.

Does the Form 4 indicate indirect holdings?

Yes. The filing states 5,000 shares are held of record by a family trust (D. and M. Walters Family Trust dated 7/6/2020).