Every Form 4 that Eos Energy Enterprises, Inc. (EOSE) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow EOSE and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full EOSE filings page.
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.
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 executive Nathan Kroeker reported equity transactions tied to his compensation. On January 23, 2026, 100,000 restricted stock units converted into an equal number of common shares at an exercise price of $0, increasing his directly held common stock to 712,512 shares.
On January 26, 2026, under a pre-arranged Rule 10b5-1 trading plan adopted on September 15, 2025, he sold 50,000 common shares at a weighted average price of $16.04, in multiple trades between $15.71 and $16.92, primarily to cover estimated tax withholding obligations related to the RSU vesting. After these transactions, he directly owned 662,512 shares of Eos Energy common stock as CCO and Interim CFO.
Eos Energy Enterprises Chief Legal Officer Michael W. Silberman reported automatic share transactions linked to restricted stock unit (RSU) vesting. On January 22, 2026, 83,334 RSUs were converted into the same number of common shares at $0 exercise price under the company’s 2020 Incentive Plan, with the RSUs scheduled to vest in three equal annual installments subject to continued service. On January 23, 2026, he sold 41,667 common shares at a weighted average price of $17.74 under a pre-established Rule 10b5-1 trading plan designed to cover estimated tax withholding obligations from this vesting. Following these transactions, Silberman beneficially owned 283,279 common shares directly and 83,333 RSUs, each RSU representing a right to receive one common share.