Joe Mastrangelo - 03 Jan 2023 Form 4 Insider Report for Eos Energy Enterprises, Inc. (EOSE)

Role: Chief Executive Officer, Director
Signature: /s/ Randall Gonzales as attorney-in-fact for Joe Mastrangelo
Issuer symbol: EOSE
Transactions as of: 03 Jan 2023
Net transactions value: -$177,653
Form type: 4
Filing time: 05 Jan 2023, 17:31:08 UTC
Previous filing: 14 Nov 2022
Next filing: 06 Jul 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	EOSE	Common Stock	Options Exercise	$0	+250,000	+62%	$0.000000	653,727	03 Jan 2023	Direct	F1
transaction	EOSE	Common Stock	Tax liability	$177,653	-130,627	-20%	$1.36	523,100	03 Jan 2023	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	EOSE	Restricted Stock Units	Options Exercise	$0	-250,000	-50%	$0.000000	250,000	03 Jan 2023	Common Stock	250,000		Direct	F1, F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock
F2	The reporting person received a grant of RSUs under the Issuer's 2020 Incentive Plan, as amended from time to time, which will vest in three equal installments on each of January 3, 2022, January 2, 2023 and January 1, 2024, subject to continued service through each vesting date.
F3	Not applicable.