Director Marian Walters filed a Form 4 with the SEC on August 6, 2026, reporting the conversion of subscription rights into common stock and warrants in connection with Eos Energy Enterprises, Inc.'s rights offering that closed on July 21, 2026.

Key Highlights

  • Transaction date: July 21, 2026, coinciding with the close of the company's rights offering.
  • Shares acquired: 11,407 shares of common stock acquired via conversion of subscription rights at $5.48 per share.
  • Post-transaction direct ownership: 171,634 shares of common stock held directly following the reported transaction.
  • Indirect ownership: 5,000 shares held indirectly by David Walters and Marian Walters as trustees of the D. and M. Walters Family Trust dtd 7/6/2020.
  • Warrants retained: 5,005 warrants (right to buy) remain beneficially owned directly, with an exercise price of $5.48 per share, expiring 10 years after the rights offering closed.
  • Subscription rights extinguished: 11,407 subscription rights and 5,005 warrants were exercised via transaction code M, leaving 0 subscription rights outstanding.

Marian Walters Exercises Subscription Rights in Eos Energy Rights Offering

According to the filing, Marian Walters, a director of Eos Energy Enterprises, Inc. (EOSE), exercised subscription rights issued as part of a rights offering that closed on July 21, 2026. The filing describes each subscription right as "exercisable for units that consisted of (i) 1 share of common stock and (ii) 0.4388 of a warrant exercisable to acquire a share of common stock at an exercise price of $5.48 per share." The transaction code reported is M, indicating an exercise or conversion of a derivative security.

The filing reports that Walters acquired 11,407 shares of common stock through the conversion, bringing her direct beneficial ownership to 171,634 shares. Separately, 5,000 shares are held indirectly through the D. and M. Walters Family Trust dtd 7/6/2020, of which David Walters and Marian Walters serve as trustees. Following the transaction, Walters also retains direct beneficial ownership of 5,005 warrants, each exercisable to acquire one share of common stock at $5.48 per share.

The filing notes that the warrants "became exercisable immediately after the Rights Offering closed and expire 10 years later, unless exercised or redeemed earlier," and that warrants not exercised or redeemed before expiration "will have no value." The Form 4 was signed by Sumeet Puri as attorney-in-fact for Marian Walters on August 6, 2026.

What Was Disclosed

Director Marian Walters reported the exercise of 11,407 subscription rights and 5,005 warrants in Eos Energy Enterprises' rights offering, resulting in the acquisition of 11,407 common shares at $5.48 each and retention of 5,005 warrants with the same exercise price.