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

Rhea-AI Filing Summary

Eos Energy Enterprises (EOSE) Form 4: Chief Accounting Officer Sumeet Puri reported two transactions dated 25 July and 29 July 2025.

• Vesting/Acquisition: 58,333 common shares were issued upon the automatic conversion of an equal number of RSUs granted under the 2020 Incentive Plan. Exercise price was $0.
• Sale: 17,500 shares were sold on 29 July at a weighted-average price of $5.94 (range $5.83-$6.29) through a Rule 10b5-1 plan adopted 14 Mar 2025 to satisfy estimated tax-withholding obligations.
• Net effect: Beneficial ownership increased to 136,457 shares, up 40,833 shares from pre-transaction levels. Ownership remains direct.
• Position: Puri continues to serve as Chief Accounting Officer.

No derivatives remain outstanding beyond the disclosed RSUs. No earnings or company-level guidance was included in this filing.

Positive

• Net increase of 40,833 shares in officer ownership, signaling stronger alignment with shareholders.
• Sale executed under a disclosed Rule 10b5-1 plan, reflecting good governance and reducing perception of opportunistic trading.

Negative

• 17,500-share sale at $5.94 may draw minor concern among investors focused on insider selling, albeit tax-related.

Insights

Securities Analyst

TL;DR: Officer net-adds ~41k shares; small tax-related sale, neutral signal.

The CAO’s RSU vesting materially outweighed the subsequent sale, resulting in a 43% increase in his direct stake. The sale was executed via a pre-arranged 10b5-1 plan explicitly for tax coverage, limiting negative interpretation. Transaction size (≈$104k gross proceeds) is immaterial to EOSE’s ~$800m market cap and does not suggest valuation concerns. Overall insider alignment has improved.

Corporate Governance Expert

TL;DR: Pre-planned trades, transparent disclosure; governance practices intact.

The use of a 10b5-1 plan and detailed weighted-average pricing enhance transparency and mitigate litigation risk. Continued service requirements tied to RSU vesting align executive incentives with long-term shareholder value. No red flags appear regarding compliance or ethics.

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).

1. Name and Address of Reporting Person^*

Puri Sumeet

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
07/25/2025

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	07/25/2025		M		58,333	A	$0(1)	153,957	D
Common Stock	07/29/2025		S(2)		17,500	D	$5.94(3)	136,457	D

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
Restricted Stock Units(4)	(1)	07/25/2025		M			58,333	(5)	(5)	Common Stock	58,333	$0	116,667	D

Explanation of Responses:

1. Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

2. The sales reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 14, 2025 to cover estimated tax withholding obligations in connection with the vesting of restricted stock units.

3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.83 to $6.29, 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.

4. The reporting person received a grant of RSUs under the Issuer's 2020 Incentive Plan, which will vest in three equal installments on each of the first three anniversaries of the grant date, subject to continued service through each vesting date.

5. Not applicable.

Remarks:

	/s/ Michael Silberman as attorney-in-fact for Sumeet Puri	07/29/2025
	** 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

How many EOSE shares did Chief Accounting Officer Sumeet Puri acquire?

He acquired 58,333 shares through RSU vesting on 25 Jul 2025.

How many EOSE shares did Sumeet Puri sell and at what price?

He sold 17,500 shares at a weighted-average price of $5.94 on 29 Jul 2025.

What is Puri’s total beneficial ownership after the transactions?

His direct holdings increased to 136,457 common shares.

Was the share sale part of a pre-arranged plan?

Yes, it was executed automatically under a Rule 10b5-1 plan adopted 14 Mar 2025.

Do the transactions affect Puri’s role within Eos Energy Enterprises?

No. He remains the company’s Chief Accounting Officer.