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, Inc. Chief Commercial Officer Nathan Kroeker exercised subscription rights in a July 21, 2026 rights offering, converting 16,944 rights into 16,944 shares of common stock at $5.48 per share and receiving 7,435 warrants. Following these transactions he holds 904,471 common shares directly and 7,435 warrants exercisable at $5.48 per share, while the subscription rights position was fully converted.
Eos Energy Enterprises, Inc. reported Q2 and first-half 2026 results with rapid top-line growth but continued operating losses. Total revenue was 68,775 and 125,738 (both in thousands of dollars) for Q2 and the first half, up from 15,236 and 25,693 a year earlier, including 55,034 of related-party product revenue.
Cost of goods sold of 117,576 and 218,966 (in thousands) exceeded revenue, resulting in gross losses of 48,801 and 93,228 and operating losses of 83,811 and 163,123. Two customers accounted for about 97.7% of Q2 revenue. The company recognized 22,798 of production tax credits in the first half and held 33,826 of related grant receivables.
Despite negative operating results, first-half net income attributable to shareholders was 233,173 (in thousands), reflecting non-cash gains including 146,140 on warrants, 95,488 on derivatives, 216,684 on related-party derivatives and a 648,320 remeasurement of related-party preferred stock. At June 30, 2026, cash, cash equivalents and restricted cash totaled 364,070, first-half operating cash outflow was 191,753, total debt principal was 948,284 and shareholders’ deficit was 1,030,784 (all in thousands).
Eos Energy Enterprises reported strong top-line growth but continued heavy losses for the quarter ended June 30, 2026. Revenue was $68.8 million, up 351% year over year, with about $55.0 million from a Cerberus‑financed project later contributed to the Frontier Power USA joint venture. Backlog reached a record $807 million, representing 3.4 GWh, and the commercial opportunity pipeline totaled $24.6 billion.
Profitability remains challenging. The company posted a $48.8 million gross loss and gross margin of -71%, a $275.7 million net loss mainly from fair value adjustments, and an adjusted EBITDA loss of $71.4 million. Total cash, including restricted cash, was $364.1 million at June 30, 2026. Eos tightened its 2026 revenue outlook to $300 million–$350 million, from $300 million–$400 million, as it evaluates consolidating manufacturing into its Thorn Hill facility, where a new production line is delivering faster cycle times and is expected to improve efficiency and margins over time.
Eos Energy Enterprises, Inc. reported that Chief Accounting Officer Sumeet Puri converted 58,334 restricted stock units into common stock on July 25, 2026 and, on July 28, 2026, sold 29,167 common shares at a weighted average price of $3.36 under a Rule 10b5-1 trading plan adopted on September 15, 2025 to cover estimated tax withholding from the RSU vesting.
Nathan Kroeker, Chief Commercial Officer of Eos Energy Enterprises, converted 220,834 restricted stock units into the same number of common shares on July 25, 2026 under the company’s 2020 Incentive Plan. Each RSU represents a right to receive one share and vests in three annual installments, subject to continued service.
On July 28, 2026, he sold 110,417 common shares at a weighted average price of $3.36 per share, in multiple trades between $3.23 and $3.48. These sales were executed automatically pursuant to a Rule 10b5-1 trading plan adopted on September 15, 2025 to cover estimated tax withholding obligations arising from the RSU vesting.
Eos Energy Enterprises, Inc. director and Chief Executive Officer Joe Mastrangelo reported equity transactions involving restricted stock units (RSUs) and common stock. On July 25, 2026, 333,334 RSUs, each representing a contingent right to one share of common stock, were converted into 333,334 shares of common stock at $0.00 per share, leaving 333,333 RSUs outstanding. On July 27, 2026, 159,154 shares of common stock at $3.61 per share were withheld to satisfy tax obligations arising from a vested RSU award under the company’s Amended and Restated 2020 Incentive Plan.
BlackRock, Inc. filed an amended Schedule 13G reporting its beneficial ownership of Class A common stock of Eos Energy Enterprises, Inc.. BlackRock reports beneficial ownership of 25,903,425 shares, representing 7.6% of the Class A stock.
BlackRock has sole voting power over 25,354,673 shares and sole dispositive power over all 25,903,425 shares, with no shared voting or dispositive power. Various underlying clients have rights to dividends or sale proceeds, but no individual client holds more than five percent of the total outstanding common shares.
EOS Energy Enterprises, Inc. insider Sumeet Puri filed to sell common stock under Rule 144. The filing lists 29,167 common shares held at UBS Financial Services, Inc. with an aggregate market value of $100,042.81, associated with RSU vesting dated July 25, 2026, for potential sale on July 28, 2026 on NASDAQ. It also notes a prior sale of 8,823 common shares on June 30, 2026 for $51,693.07 during the past three months.
Eos Energy Enterprises, Inc. shareholder Michael Silberman filed a notice of proposed sale of common stock. The filing lists 72,917 shares of common stock underlying an RSU vesting event dated 07/25/2026, with a planned sale through UBS Financial Services on or after 07/28/2026 on NASDAQ, reflecting an aggregate value of $250,105.31. The notice also records a prior sale within the last three months of 14,998 shares of common stock on 06/30/2026 for proceeds of $88,000.76.
EOS Energy Enterprises (EOSE) has a planned sale of common stock under Rule 144. A brokerage account at UBS Financial Services is listed in connection with 110,417 common shares of EOSE to be sold on NASDAQ with an indicated value of $378,730.31. These shares are tied to RSU vesting dated 07/25/2026 and identified as issued by the company.
The filing also lists EOSE insider Nathan Kroeker as having sold common shares in the last three months: 35,289 shares for $206,673.56 on 06/30/2026 and 79,309 shares for $371,324.74 on 07/07/2026. These amounts provide recent trading history relevant to the new planned sale.