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 is conducting a registered direct offering of common stock and detachable warrants. The company is offering 13,683,634 shares of common stock together with 6,004,378 warrants, each warrant exercisable for one share at $5.481 per share. The aggregate offering price per unit (one share plus accompanying 0.4388 warrant) is $5.481, producing estimated gross proceeds of approximately $75.0 million. The company intends to use the proceeds to acquire Class B Units of Frontier at $1.00 per unit as part of a joint venture transaction with CCM and HBC. The warrants are exercisable immediately, expire ten years after issuance, and may be redeemable by the company after the five-year anniversary if the stock meets specified price conditions.
The summary figures assume no exercise of the offered warrants. Shares outstanding after the offering are shown as 353,142,655 shares (based on 339,459,021 shares outstanding as of March 31, 2026 before this offering). Closing is expected on or about July 1, 2026.
Eos Energy Enterprises Chief Accounting Officer Sumeet Puri reported routine equity activity tied to restricted stock units. On June 26, 2026, he exercised 17,545 RSUs, converting them into the same number of common shares at $0.00 per share, and his RSU balance became 35,389 units.
On June 30, 2026, he then sold 8,823 common shares at a weighted average price of $5.86, in multiple trades between $5.68 and $6.12. According to the filing, these sales were executed automatically under a Rule 10b5-1 trading plan adopted on September 12, 2025 to cover estimated tax withholding obligations related to RSU vesting.
After these transactions, Puri directly owns 173,112 shares of common stock, in addition to his remaining RSUs. The activity reflects compensation-related vesting and tax coverage rather than a discretionary change in his overall stake.
Eos Energy Enterprises Chief Administration Officer Michelle Buczkowski reported a mix of equity award vesting and related share sales. On June 26, 2026, 22,938 restricted stock units converted into the same number of common shares at $0.00 per share under a company incentive plan.
On June 30, 2026, she sold 11,469 common shares in open-market transactions at a weighted-average price of $5.87 per share, effected automatically under a pre-arranged Rule 10b5-1 trading plan to cover estimated tax-withholding obligations tied to the vesting. After these transactions, she directly holds 59,242 common shares and 45,876 restricted stock units.
Eos Energy Enterprises Chief Legal Officer Michael W. Silberman reported routine equity compensation activity and a related tax sale. On June 26, 2026, he exercised 29,996 Restricted Stock Units, receiving the same number of common shares at a conversion price of $0.00 per share. On June 30, 2026, he sold 14,998 common shares in an open-market transaction at a weighted average price of $5.87 per share, with individual trades ranging from $5.68 to $6.18. According to the disclosure, this sale was executed automatically under a Rule 10b5-1 trading plan adopted on September 15, 2025 to cover estimated tax withholding obligations tied to RSU vesting. After these transactions, Silberman directly holds 298,277 common shares and 59,991 RSUs that will vest in three equal annual installments under the company’s 2020 Incentive Plan.
Eos Energy Enterprises CCO and Interim CFO Nathan Kroeker reported a combination of option-style vesting and a share sale. On June 26, 2026, he exercised 70,578 Restricted Stock Units, converting them into the same number of common shares at a stated price of $0.00 per share. On June 30, 2026, he then sold 35,289 common shares in an open-market transaction at a weighted average price of $5.86 per share, with actual prices ranging from $5.66 to $6.19. The filing notes these sales were made automatically under a pre-arranged Rule 10b5-1 trading plan adopted to cover estimated tax withholding obligations related to RSU vesting. Following the transactions, Kroeker directly holds 697,801 common shares and 141,157 RSUs, which continue to vest in three equal annual installments subject to continued service.
Eos Energy Enterprises Chief Executive Officer Joe Mastrangelo reported routine equity compensation activity involving restricted stock units (RSUs). On June 26, 2026, he exercised RSUs to acquire 130,570 shares of common stock at a conversion price of $0.00 per share under the company’s 2020 Incentive Plan.
In connection with this vesting, on June 30, 2026 the company withheld 60,703 common shares at a value of $6.09 per share to cover tax obligations, which is recorded as a disposition but not an open-market sale. After these transactions, Mastrangelo directly holds 1,640,347 shares of common stock and 261,140 RSUs, with each RSU representing a contingent right to receive one share of common stock.