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 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.
Eos Energy Enterprises is asking stockholders at its virtual annual meeting on June 3, 2026 to approve several key items. Proposals include electing three Class III directors, ratifying Deloitte & Touche LLP as auditor for 2026, and a non-binding advisory vote on executive pay.
The company is also seeking approval to amend its charter to increase authorized common stock from 600,000,000 to 800,000,000 shares and to amend its Second Amended and Restated 2020 Incentive Plan, which governs long-term equity awards. The proxy details a largely independent, classified board with three preferred-stock-appointed directors, extensive committee structure, and expanded use of performance-based RSUs and relative total shareholder return metrics in executive compensation. CEO Joe Mastrangelo’s 2025 total compensation was $4,854,452, heavily weighted toward equity awards tied to multi-year performance.
Eos Energy Enterprises released preliminary results indicating first quarter 2026 revenue of $56–$57 million, driven by record shipments and improved manufacturing performance. The company reported a 17% quarter-over-quarter increase in shipments, alongside higher battery and bipolar output, reflecting better throughput and process stability.
Eos highlighted operational initiatives in supplier quality, lean processes, and equipment optimization, as well as progress on its second battery production line, which is expected to begin initial production by the end of the second quarter. New senior hires in sales and project delivery are intended to help convert growing demand into completed projects.
Eos Energy Enterprises director Nathaniel Fick has filed an SEC Form 3, which is an initial statement of beneficial ownership. This filing establishes his status as a reporting insider of the company but, in the provided data, does not show any share purchases, sales, or option exercises.
Eos Energy Enterprises Inc filing an amendment to a Schedule 13G/A reports that The Vanguard Group beneficially owns 0 shares of Common Stock as of the amendment, reflecting an internal realignment completed January 12, 2026 that disaggregated certain subsidiaries' holdings from The Vanguard Group, Inc.
The filing states Vanguard has no voting or dispositive power over EOSE common shares and confirms ownership is five percent or less.
Eos Energy Enterprises appointed Nathaniel (Nate) Fick, age 48, to its Board of Directors as an independent Class III director, effective March 24, 2026. He will serve until the 2026 annual meeting and, if elected, for a three-year term.
Fick joins the Nominating and Corporate Governance Committee and expands the Board to eleven directors. He will not receive board compensation under the policies of his employer. Eos will enter into a standard director indemnification agreement with him, covering certain legal expenses tied to his board service.
The company highlighted Fick’s background in national security, cybersecurity, artificial intelligence, technology leadership, and infrastructure from roles at Cerberus Capital Management, prior government service as U.S. Ambassador-at-Large for Cyberspace & Digital Policy, and earlier leadership positions in cybersecurity and the U.S. Marine Corps.
Eos Energy Enterprises director David Urban bought additional company stock in the open market. On March 9, 2026, he purchased 16,250 shares of common stock at a weighted average price of $6.16 per share, with individual trade prices ranging from $6.15 to $6.16. Following this purchase, he directly owns 62,471 shares.