{"url_path":"/sec/eose/8-k/2026-07-02/item-8-01","section_key":"item-8-01","section_title":"Item 8.01 Other Events.**","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-07-02","source_url":"https://www.sec.gov/Archives/edgar/data/1805077/0000950103-26-010023-index.html","accession_number":"0000950103-26-010023","cik":"0001805077","ticker":"EOSE","issuer_name":"Eos Energy Enterprises, Inc.","edgar_url":"https://www.sec.gov/Archives/edgar/data/1805077/0000950103-26-010023-index.html","primary_entity_key":"0001805077","primary_entity_name":"Eos Energy Enterprises, Inc."},"word_count":333,"has_tables":true,"body_markdown":"**Item 8.01 Other Events.**\n\n \n\n**Rights Offering**\n\n \n\nOn July 2, 2026, Eos Energy Enterprises, Inc. (the\n“Company”) issued a press release announcing the commencement of its previously-announced rights offering pursuant to a\nshelf registration statement filed on Form S-3 (File No. 333-295819) (the “Registration Statement”) with the Securities\nand Exchange Commission (“SEC”) on May 13, 2026, and the prospectus supplement relating to the rights offering filed with the SEC on\nJuly 2, 2026 (the prospectus supplement together with the accompanying prospectus, the “Prospectus”).\n\n \n\nIn connection with the rights offering, the Company is filing certain\nancillary documents as Exhibits 4.1, 4.2, 4.3, 99.1, 99.2, 99.3, 99.4, 99.5, 99.6, and 99.7 to this Current Report on Form 8-K for the\npurpose of incorporating such items by reference to the Registration Statement, of which the Prospectus forms a part. The Company is also\nfiling as Exhibit 5.1 the opinion of Davis Polk & Wardwell LLP in connection with the issuance of the subscription rights and the\nCompany’s common stock, par value $0.0001 per share (“Common Stock”), and warrants to purchase shares of Common Stock,\nissuable upon exercise of such subscription rights.\n\n \n\nThis Current Report on Form 8-K does not constitute an offer to sell\nor the solicitation of an offer to buy the securities described herein, nor will there be any sale of such securities in any state or\nother jurisdiction in which such offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities\nlaws of any such state or jurisdiction. The rights offering will be made only by means of the Prospectus, which can be accessed through the SEC’s website at www.sec.gov.\nA copy of the Prospectus may also be obtained by contacting the information agent for the rights offering, Sodali & Co., at (203)\n658-9400 (banks and brokers), (833) 225-0490 (individuals call toll-free) or EOSE.info@investor.sodali.com.\n\n \n\nA copy of the press release related to the matters\nset forth herein is attached hereto as Exhibit 99.7 and is incorporated herein by reference."}