Welcome to our dedicated page for Eos Energy Enterprises SEC filings (Ticker: EOSE), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Eos Energy Enterprises, Inc. filings document the regulatory record of a Nasdaq-listed manufacturer of zinc-based battery energy storage systems. Recent Form 8-K reports disclose operating results and preliminary financial information, manufacturing and capacity updates, amendments to a U.S. Department of Energy loan guarantee agreement, senior convertible notes, and other capital-structure matters tied to the company’s funding plan.
Proxy and governance filings cover annual meeting matters, board elections, committee assignments, executive compensation, equity awards, indemnification arrangements, and stockholder voting procedures. The filing record also includes executive employment agreements and director appointments, giving formal disclosure around leadership structure, compensation terms, common stock registration, and material agreements.
Eos Energy Enterprises director Marian Walters reported a mix of option exercises and share sales in common stock. Walters exercised restricted stock units and stock options covering a total of 30,792 shares, including 7,681 options at an exercise price of $1.18 per share, then sold 7,681 shares in an open-market transaction at a weighted average price of $7.07 per share, with trade prices ranging from $7.01 to $7.24. After these transactions, Walters holds 135,334 shares directly and 5,000 shares indirectly through the D. and M. Walters Family Trust.
Eos Energy Enterprises director David Urban exercised restricted stock units into common shares. On May 19, 2026, he converted 23,111 restricted stock units into 23,111 shares of common stock at a price of $0.00 per share. Following this transaction, he directly owns 85,582 shares of common stock, and the exercised RSUs now show a balance of zero in this filing. The activity reflects a derivative exercise with no reported open-market buying or selling.
Cerberus-affiliated investors report a 32% beneficial stake in Eos Energy Enterprises and outline a new joint venture and financing plan. The reporting persons may be deemed to own 159,587,654 shares of common stock, including shares issuable from existing warrants and preferred stock, out of 339,514,027 shares outstanding as of May 11, 2026.
Eos and CCM Frontier signed a binding term sheet to form a joint venture, Frontier Power USA Parent, LLC. CCM Frontier is expected to contribute 50,000,001 Class A-1 units and an Initial Class A-2 Contribution of $100 million for 100,000,000 Class A-2 units, plus receive long-dated warrants for Eos common stock. Eos plans to fund its JV contribution through a Rights Offering targeting $150 million, issuing common shares and additional warrants to participating stockholders. JV governance gives CCM Frontier four of seven manager seats initially, with Eos representation tied to ownership thresholds and transfer restrictions applying for three years after closing.
Eos Energy Enterprises entered a binding term sheet with Cerberus affiliate CCM Frontier to form Frontier Power USA, a joint venture to develop and own long-duration energy storage projects. Cerberus plans a $100 million equity contribution, while Eos expects to fund about $150 million via a pro rata rights offering, both subject to approvals and definitive agreements.
The structure includes JV preferred units, a complex distribution waterfall targeting a 10% pre-tax IRR, transfer restrictions for three years, and Cerberus warrants for Eos stock. Separately, Eos reported first-quarter 2026 revenue of $56.963 million, up 445% year over year, with a gross loss of $44.427 million and adjusted EBITDA loss of $68.019 million. Net income attributable to shareholders was $508.883 million, driven largely by non-cash fair value changes. Cash, including restricted cash, was $472.368 million at March 31, 2026, with a commercial pipeline of $24.3 billion and backlog of $644.6 million. Eos reaffirmed 2026 revenue guidance of $300 million to $400 million.
Eos Energy Enterprises, Inc. filed a Form S-3 shelf registration to register common stock, preferred stock, debt securities, warrants, units and rights for sale from time to time after effectiveness. The prospectus states offerings will be made pursuant to prospectus supplements and proceeds will be used for general corporate purposes. The company reported 339,459,021 shares of Common Stock outstanding as of March 31, 2026 and disclosed a Nasdaq closing price of $8.10 per share on May 12, 2026.
Eos Energy Enterprises appointed Alessandro Lagi as its new Chief Financial Officer, effective June 8, 2026, replacing interim CFO Nathan Kroeker, who remains Chief Commercial Officer. Lagi, 50, brings senior finance experience from Johnson Controls, Baker Hughes and BHGE across global and regional roles.
Lagi’s employment agreement provides a $470,000 annual base salary, a target annual bonus equal to 100% of base salary, and an initial $2,000,000 grant of time-vesting restricted stock units vesting over three years. He is also eligible for long-term incentives targeting $1,000,000 annually, plus relocation and car allowances and defined severance and non-compete protections.
Eos Energy Enterprises Inc ownership filing shows Vanguard Capital Management reports beneficial ownership of 17,239,505 shares of Common Stock, representing 5.07% of the class. The filing states Vanguard has sole dispositive power over 17,239,505 shares and sole voting power for 2,404,068 shares. The filing is signed on 04/29/2026 and cites aggregated holdings across Vanguard business units per SEC Release No. 34-39538.
Cerberus Capital Management II and its affiliates report a 32% beneficial stake in Eos Energy Enterprises, Inc. common stock. They may be deemed to beneficially own 159,587,654 shares, including common shares and shares issuable from a warrant and multiple preferred stock series.
The position reflects an antidilution adjustment that increased the common shares issuable from Series B-4 Preferred Stock. Eos also satisfied final performance milestones under a Credit Agreement on October 31, 2025, so no additional securities are currently contemplated there. In March 2026, Cerberus affiliate executive Nathaniel Fick joined Eos’s board as a Class III director and was appointed to the Nominating and Corporate Governance Committee.