Walters Marian 4

What Happened

Marian Walters, a director of Eos Energy Enterprises (EOSE), exercised options to acquire 30,000 shares at $1.18 per share (cost $35,400) and immediately sold 30,000 shares in an open-market transaction at $9.18 per share for proceeds of $275,400 on May 28, 2026. The filing also lists a separate derivative disposition of 30,000 shares at $0.00; the filing does not explain that line further. Net proceeds from the sale minus the exercise cost are roughly $240,000 (pre-tax).

Key Details

• Transaction date: May 28, 2026; Form 4 filed May 29, 2026 (appears timely).
• Exercise: 30,000 shares acquired at $1.18 each — total cost $35,400.
• Sale: 30,000 shares sold on the open market at $9.18 each — total proceeds $275,400.
• Derivative disposition: 30,000 shares listed at $0.00 (no dollar amount reported).
• Shares owned after transaction: Not specified in the filing.
• Footnotes:
  • F1: Shares of record are held by David Walters and Marian Walters as trustees of the D. and M. Walters Family Trust (dtd 7/6/2020).
  • F2: Options were granted May 19, 2022 (145,018 shares, vested May 19, 2023); 80,000 of those options were previously exercised on Dec 4, 2025, May 19, 2026 and May 20, 2026.

Context

• This looks like an option exercise followed by an immediate sale (a common cashless exercise pattern), which converts option value into cash; the separate $0.00 derivative disposition is not explained in the form.
• Sales by insiders are common and do not by themselves indicate company direction; purchases typically carry stronger signals for investors.