Eos Energy Enterprises' rights offering expires today, July 21, 2026. The offering originally launched on July 2. Eligible shareholders may purchase units of common stock and warrants at a subscription price of $5.481 per unit.

Net proceeds will fund the company's investment in the Frontier Power USA joint venture. This partnership aims to deploy more than $1.5 billion in energy storage projects.

The broader financing plan included a separate $75 million direct offering. Shares previously declined as investors reacted to potential shareholder dilution.

Participation levels will serve as a key indicator of investor confidence in the company’s strategy. A virtual investor presentation also concludes today alongside the offering's expiration.