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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.
Eos Energy Enterprises Chief Executive Officer Joe Mastrangelo reported an open-market purchase of 23,900 shares of common stock at a price of $6.58 per share. Following this transaction, he directly owns a total of 1,487,126 shares of Eos Energy Enterprises common stock.
Eos Energy Enterprises director Alexander Dimitrief bought additional shares of the company’s common stock in the open market. On March 2, 2026, he purchased 15,000 shares at a price of $6.04 per share, increasing his direct holdings to 235,221 shares.
The filing also notes an additional 10,000 shares of common stock held indirectly by his spouse, reported as indirect ownership. This Form 4 highlights continued equity ownership by a board member through a meaningful open-market purchase.
Eos Energy Enterprises Chief Executive Officer Joe Mastrangelo purchased 60,000 shares of common stock in the open market. The transactions occurred on March 2, 2026 at a weighted average price of $5.75 per share, with individual trade prices ranging from $5.74 to $5.75. Following these purchases, he directly owns 1,463,226 common shares.
Eos Energy Enterprises describes a rapidly growing but still unprofitable zinc‑based battery storage business focused on long‑duration grid and data‑center applications. The company posted a net loss of $969.6 million for the year ended December 31, 2025, up from $685.9 million in 2024, and continues to warn that it expects further losses as it scales manufacturing and invests in its Z3 platform and software.
Eos highlights differentiated, non‑flammable U.S.-made zinc batteries, new products such as the Z3 module, DawnOS controls and Indensity high‑density storage architecture, and strong policy tailwinds from the Inflation Reduction Act and the One Big Beautiful Bill Act. To expand capacity to 8 GWh, it has a DOE‑guaranteed loan facility of up to $303.5 million and had drawn $90.9 million across Tranche 1 by December 31, 2025. The company employed 787 full‑time staff, had an aggregate public float value of about $1.283 billion as of June 30, 2025, and 339,434,259 shares outstanding as of February 24, 2026, while emphasizing significant business, financing, execution, supply‑chain and competitive risks.
Eos Energy Enterprises reported record growth but continued heavy losses for 2025. Full-year revenue reached $114.2 million, more than 7x 2024, with fourth quarter revenue of $58.0 million, about 8x year-over-year and 90% above the prior quarter, driven by scaled, more automated production.
The company still posted a full-year net loss attributable to shareholders of $969.6 million and adjusted EBITDA loss of $219.1 million, while gross loss was $143.8 million. Eos ended 2025 with total cash of $624.6 million after completing a $600 million senior convertible notes issuance and equity offering, retiring $200 million of 2030 notes and extending all corporate debt maturities to 2030 and beyond. Management now concludes substantial doubt about its ability to continue as a going concern no longer exists and issued 2026 revenue guidance of $300 million to $400 million.
Eos Energy Enterprises, Inc. entered into a Second Amendment to its loan guarantee agreement with the U.S. Department of Energy on February 13, 2026. The amendment defers the applicability of the Loan Agreement’s Consolidated Revenue and EBITDA financial covenants until the fiscal quarter ended March 31, 2027, giving the company more time before these performance tests apply.
Eos Energy Enterprises, Inc. received an amended Schedule 13G reporting that a group of affiliated investment entities, including Capital Ventures International and several Susquehanna-branded firms, beneficially own 14,340,893.00 shares of its common stock, representing 4.5 % of the class as of 12/31/2025.
The filing notes that Capital Ventures International’s position is through shares issuable upon conversion of convertible notes, while Susquehanna Securities, LLC’s beneficial ownership includes options to buy 6,782,000 Shares. The group states the holdings are in the ordinary course of business and not for changing or influencing control. A company prospectus supplement indicated 317,544,042 Shares outstanding upon completion of a referenced offering.