Eos Energy director logs cash-settled RSU award

Eos Energy Enterprises director Gregory S. Nixon reported compensation-related activity involving restricted stock units.

Rhea-AI Filing Summary

Eos Energy Enterprises director Gregory S. Nixon reported compensation-related activity involving restricted stock units. On May 19, 2026, previously granted RSUs were cash settled at $6.88 per unit, the closing price of the company’s common stock that day. Footnote disclosure states no shares were actually issued to Nixon and he did not dispose of any shares in connection with this settlement. Following these transactions, he holds 13,867 shares of common stock directly.

Insider Trade Summary

23,111 shares exercised/converted

Exercise 3 txns

Insider Nixon Gregory S.

Role Director

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	23,111	$0.00	$0.00
Grant/Award	Common Stock	23,111	$0.00	$0.00
Disposition	Common Stock	9,244	$6.88	$64K

Holdings After Transaction: Restricted Stock Units — 0 contracts (Direct); Common Stock — 13,867 shares (Direct)

Footnotes (3)

1. F1. Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.
2. F2. Represents the cash settlement on May 19, 2026 of RSUs granted on May 19, 2025. Each RSU was settled for $6.88, the closing price per share of common stock of the Company on May 19, 2026. No shares were actually issued to the reporting person, nor did the reporting person dispose of any shares.
3. F3. Not applicable.

Key Figures

RSU cash settlement price: $6.88 per unit Disposition-to-issuer units: 9,244 units RSUs exercised/converted: 23,111 units +2 more

5 metrics

RSU cash settlement price $6.88 per unit Closing price per share of common stock on May 19, 2026

Disposition-to-issuer units 9,244 units Common stock line coded as disposition to issuer on May 19, 2026

RSUs exercised/converted 23,111 units Restricted Stock Units exercised or converted to common stock equivalent

Common shares held after transaction 13,867 shares Direct ownership following disposition-to-issuer entry

RSU derivative position after settlement 0 units Restricted Stock Units balance following exercise and cash settlement

Key Terms

Restricted Stock Units, cash settlement, disposition to issuer, grant, award, or other acquisition, +1 more

5 terms

Restricted Stock Units financial

"security_title: "Restricted Stock Units" with exercise or conversion into common stock"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

cash settlement financial

"Represents the cash settlement on May 19, 2026 of RSUs granted on May 19, 2025."

Cash settlement is a process where, instead of exchanging physical assets like stocks or commodities, the parties involved settle the difference in value with money after a contract ends. For investors, it simplifies transactions by avoiding the need to handle or deliver the actual asset, making it quicker and more convenient to complete trades. This method ensures a straightforward way to settle agreements based on their final value.

disposition to issuer financial

"transaction_code_description: "Disposition to issuer" for the common stock entry"

grant, award, or other acquisition financial

"transaction_code_description: "Grant, award, or other acquisition" for common stock"

Exercise or conversion of derivative security financial

"transaction_code_description: "Exercise or conversion of derivative security" for RSUs"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider activity did EOSE director Gregory S. Nixon report?

Gregory S. Nixon reported compensation-related restricted stock unit activity. Previously granted RSUs were cash settled on May 19, 2026 at $6.88 per unit, based on the company’s closing share price that day, rather than being settled in actual shares of common stock.

Did Gregory S. Nixon sell any EOSE shares in this Form 4 filing?

No, he did not sell any shares. Footnote disclosure explains the RSUs were settled in cash at $6.88 each, and that no shares were actually issued to Nixon and he did not dispose of any common stock as part of this compensation event.

How many EOSE common shares does Gregory S. Nixon hold after these transactions?

After the reported transactions, Nixon holds 13,867 shares of Eos Energy Enterprises common stock directly. The filing shows this total following the disposition-to-issuer entry, and the RSU position was reduced to zero through cash settlement and related accounting entries.

What price was used to settle Gregory S. Nixon’s EOSE restricted stock units?

Each restricted stock unit was settled for $6.88. The footnote states this amount equals the closing price per share of Eos Energy Enterprises common stock on May 19, 2026, and that settlement was made in cash instead of delivering common shares.

Were the EOSE RSU transactions open-market trades by Gregory S. Nixon?

No, they were not open-market trades. The Form 4 describes a grant/award acquisition, an issuer disposition, and an exercise or conversion of RSUs that were cash settled, with footnotes clarifying no actual common shares were bought or sold in the market.

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

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Accepted by SEC EDGAR 05/19/2026 - 07:27 PM EDT Learn about SEC filing dates

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
Estimated average burden
hours per response:			0.5

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^*

Nixon Gregory S.

(Last) (First) (Middle)

C/O EOS ENERGY ENTERPRISES, INC.

3920 PARK AVENUE

(Street)

EDISON NEW JERSEY 08820

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/19/2026

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

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

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

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	05/19/2026		A		23,111	A(1)	$0	23,111	D
Common Stock	05/19/2026		D		9,244(2)	D	$6.88	13,867	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	(1)	05/19/2026		M			23,111	(3)	(3)	Common Stock	23,111	$0	0	D

Explanation of Responses:

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

2. Represents the cash settlement on May 19, 2026 of RSUs granted on May 19, 2025. Each RSU was settled for $6.88, the closing price per share of common stock of the Company on May 19, 2026. No shares were actually issued to the reporting person, nor did the reporting person dispose of any shares.

3. Not applicable.

Remarks:

	/s/ Michael Silberman as attorney-in-fact for Gregory Nixon	05/19/2026
	** 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.
* Form 4: SEC 1474 (03-26)