Eos Energy Enterprises Announces Rights Offering Expiration, Preliminary Results

What Happened

• Eos Energy Enterprises, Inc. announced via press release (filed on July 23, 2026) that its previously announced rights offering expired at 5:00 p.m. Eastern Time on July 21, 2026.
• Rights that were not exercised by the Expiration Date have expired and are no longer exercisable. The company described the offering's preliminary results in the press release (Exhibit 99.1 to the 8‑K).

Key Details

• Expiration date and time: July 21, 2026 at 5:00 p.m. Eastern Time.
• Company filing date for the announcement: July 23, 2026 (press release attached as Exhibit 99.1).
• Unexercised rights expired and ceased to be exercisable after the Expiration Date.
• The 8‑K discloses preliminary results only; the filing does not provide detailed subscription amounts or proceeds.

Why It Matters

• The expiration and preliminary outcome of the rights offering determine how much new capital the company may raise and the potential dilution for existing shareholders.
• Because the filing reports only preliminary results, investors should watch for follow‑up disclosures (press releases or additional SEC filings) that provide final subscription totals, proceeds, any oversubscription allocations, or backstop/shortfall arrangements.
• This is a material corporate finance event that can affect Eos Energy’s liquidity and capital structure; shareholders may want to review the attached press release and future filings for complete details.