Alexander Dimitrief - 05 Dec 2025 Form 4 Insider Report for Eos Energy Enterprises, Inc. (EOSE)

Reporting relationship: Director
Issuer ticker: EOSE
Reported as of: 05 Dec 2025
Net transaction value: +$474
SEC form: 4
Accepted by SEC: 08 Dec 2025, 20:28:35 UTC
Prior SEC filing: 05 Aug 2025
Next SEC filing: 04 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Michael Silberman as attorney-in-fact for Alexander Dimitrief

Key filing fact

Alexander Dimitrief filed Form 4 for Eos Energy Enterprises, Inc. (EOSE) on 08 Dec 2025.

Key facts

This page summarizes Alexander Dimitrief's Form 4 filing for Eos Energy Enterprises, Inc. (EOSE).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 08 Dec 2025, 20:28.

Change

Previous filing in this sequence was filed on 05 Aug 2025.
Current net transaction value: +$474.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001614732 Primary reporting owner

DIMITRIEF ALEXANDER

Relationship: Director
Address: C/O EOS ENERGY ENTERPRISES, INC., 3920 PARK AVENUE, EDISON
Signature: /s/ Michael Silberman as attorney-in-fact for Alexander Dimitrief
Signature date: 08 Dec 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

EOSE transaction

Common Stock

Options Exercise

Transaction value: $266,565
Shares: +18,473
Change %: +8.4%
Price: $14.43
Shares after: 237,925
Date: 05 Dec 2025
Ownership: Direct

EOSE transaction

Common Stock

Tax liability

Transaction value: $266,091
Shares: -17,704
Change %: -7.4%
Price: $15.03
Shares after: 220,221
Date: 05 Dec 2025
Ownership: Direct
Footnotes: F1

EOSE holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 10,000
Date: 05 Dec 2025
Ownership: By Spouse

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

EOSE transaction Derivative

Stock Option (Right to Buy)

Options Exercise

Transaction value: $0
Shares: -18,473
Change %: -100%
Price: $0.000000
Shares after: 0
Date: 05 Dec 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 18,473
Exercise price: $14.43
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

The Reporting Person acquired shares through a cashless exercise transaction with the issuer in which the Reporting Person surrendered optioned shares in payment of the purchase price. These surrendered shares were sold in a single transaction at a price of $15.03.

Footnote F2

On December 8, 2020 the reporting person was granted stock options to purchase 18,473 shares of common stock which vested on June 15, 2021.