Eos Energy Enterprises Inc SEC Filings

Sumeet Puri, Chief Accounting Officer of Eos Energy Enterprises, Inc. (EOSE), reported stock transactions related to vested restricted stock units and subsequent open-market sales. On 09/05/2025, 68,334 restricted stock units (RSUs) became vested and were reported as acquired at $0, increasing beneficial ownership to 204,791 shares. On 09/08/2025 the reporting person sold 20,501 shares at a weighted-average price of $6.98 and 20,000 shares at a weighted-average price of $7.25, reducing beneficial ownership to 164,290 shares. The sales were effected pursuant to a Rule 10b5-1 trading plan adopted March 14, 2025 and to satisfy estimated tax liabilities arising from RSU vesting.

Form 144 notice for Eos Energy Enterprises, Inc. (EOSE) reports a proposed sale of common stock under Rule 144 to be executed on 09/08/2025 on Nasdaq through UBS Financial Services. Two line items list 20,501 and 20,000 shares with aggregate market values of $143,006.78 and $145,062.00, respectively. The filer reports acquiring 40,501 shares on 09/05/2025 through RSU vesting and indicates prior sales of 17,500 shares on 07/29/2025 for $103,880.00. The form includes the standard representation that the seller is not aware of undisclosed material adverse information.

Marian Walters, a director of Eos Energy Enterprises, Inc. (EOSE), reported an insider sale on 09/03/2025. The filing shows 50,000 shares of Common Stock were disposed of in multiple transactions at a weighted average price of $7.90, with trade prices ranging from $7.66 to $8.04. After the sale, Ms. Walters directly beneficially owned 133,794 shares and indirectly held 5,000 shares via the D. and M. Walters Family Trust. The form was signed by an attorney-in-fact on behalf of Ms. Walters.

Eos Energy Enterprises (EOSE) reported a proposed sale of 50,000 common shares through UBS Financial Services with an aggregate market value of $395,091. The shares represent previously vested restricted stock units acquired on 06/15/2021 (5,198 shares), 05/15/2023 (10,600 shares) and 05/14/2025 (34,202 shares). The seller plans the transaction on or about 09/03/2025 on Nasdaq. The filing shows no sales by the same person in the past three months and includes the standard representation that the seller is not aware of undisclosed material adverse information.

Eos Energy Enterprises, Inc. is holding a virtual Special Meeting of Stockholders on October 16, 2025, at 10:00 a.m. Eastern Time. The meeting asks shareholders to approve the issuance of common stock to an "Affiliated Purchaser" upon redemption or conversion of certain notes under the Indenture as supplemented by the First Supplemental Indenture, to satisfy Nasdaq Listing Rule requirements. A second proposal seeks approval to adjourn the Special Meeting if further solicitation of proxies or a quorum is needed. Only holders of record at the close of business on August 20, 2025 may vote. The Board recommends shareholders vote FOR both the Share Issuance Proposal and the Adjournment Proposal. Proxy materials will be available at www.proxyvote.com and the Notice of Internet Availability will be mailed beginning on or about September 2, 2025.

Eos Energy Enterprises, Inc. will hold a virtual Special Meeting of Stockholders on October 16, 2025 at 10:00 a.m. Eastern Time to vote on two proposals. The primary item asks holders to approve the Company’s issuance of common stock to an Affiliated Purchaser upon redemption or conversion of certain Notes under the Indenture as supplemented by a First Supplemental Indenture, a vote required to comply with Nasdaq listing rules. The second item seeks approval to adjourn the meeting if there are insufficient votes or no quorum. Only holders of record as of August 20, 2025 may vote. The Board recommends voting FOR both proposals. Proxy materials are available at www.proxyvote.com and the meeting will be conducted via webcast at www.virtualshareholdermeeting.com/EOSE2025SM.

Eos Energy Enterprises, Inc. received a Schedule 13G showing a group of related reporting persons collectively beneficially own 15,168,902 shares of common stock, representing 5.8% of the outstanding class (256,476,521 shares outstanding as of June 30, 2025). The filing names Capital Ventures International, Susquehanna Advisors Group, Inc., G1 Execution Services, LLC, SIG Brokerage, LP and Susquehanna Securities, LLC and lists the issuer's principal executive offices in Edison, New Jersey.

The filing discloses that the reported holdings include shares issuable on conversion of convertible notes (Capital Ventures), warrants exercisable for 591 shares (G1 Execution) and options to buy 4,682,600 shares (Susquehanna Securities). The Reporting Persons state the securities are held in the ordinary course of business and not to influence control of the issuer.

Eos Energy Enterprises, Inc. (EOSE) filed a Form 144 indicating an intended insider sale of 324,504 common shares through UBS Financial Services on or after 08/06/2025. The shares were acquired via RSU vesting on 06/21/2025. At the current reference price the aggregate market value is $2.11 million. Total shares outstanding are 259,853,606, so the planned sale represents approximately 0.1 % of outstanding stock.

No other sales by this insider were reported in the past three months and no material adverse information was acknowledged. The filing provides disclosure but does not guarantee that the transaction will occur; it merely grants the right to sell under Rule 144.