Jeffrey S. Bornstein - 04 Dec 2025 Form 4 Insider Report for Eos Energy Enterprises, Inc. (EOSE)

Reporting relationship: Director
Issuer ticker: EOSE
Reported as of: 04 Dec 2025
Net transaction value: -$612,536
SEC form: 4
Accepted by SEC: 08 Dec 2025, 20:26:17 UTC
Prior SEC filing: 21 May 2025
Next SEC filing: 19 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Michael Silberman as attorney-in-fact for Jeffrey Bornstein

Key filing fact

Jeffrey S. Bornstein filed Form 4 for Eos Energy Enterprises, Inc. (EOSE) on 08 Dec 2025.

Key facts

This page summarizes Jeffrey S. Bornstein's Form 4 filing for Eos Energy Enterprises, Inc. (EOSE).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 08 Dec 2025, 20:26.

Change

Previous filing in this sequence was filed on 21 May 2025.
Current net transaction value: -$612,536.

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 0001579989 Primary reporting owner

Bornstein Jeffrey S

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

Reported non-derivative transactions

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

EOSE transaction

Common Stock

Sale

Transaction value: $486,536
Shares: -32,328
Change %: -22%
Price: $15.05
Shares after: 115,759
Date: 05 Dec 2025
Ownership: Direct
Footnotes: F1

EOSE transaction

Common Stock

Sale

Transaction value: $126,000
Shares: -8,000
Change %: -100%
Price: $15.75
Shares after: 0
Date: 04 Dec 2025
Ownership: By Whipstick Ventures LLC
Footnotes: F2, F3

EOSE holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,500
Date: 04 Dec 2025
Ownership: By Spouse

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.04 to $15.09, 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.

Footnote F2

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.75 to $15.76, 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.

Footnote F3

The number of securities beneficially owned by Whipstick Ventures LLC has been adjusted by 1 share of common stock from what was previously erroneously reported for holdings.