Eos Energy (EOSE) Director Jeffrey Bornstein Exercises Rights

What Happened

• Jeffrey S. Bornstein, a director of Eos Energy Enterprises, converted subscription rights from a July 21, 2026 rights offering and completed related derivative transactions. The Form 4 shows he acquired 9,558 common shares by exercising derivatives at $5.48 per share (total cash paid $52,378). The filing also reports the conversion/disposition of 9,558 subscription rights and the acquisition of 4,194 warrants (see footnotes).

Key Details

• Transaction date: July 21, 2026.
• Cash exercise: 9,558 shares acquired at $5.48 each = $52,378.
• Derivative conversions: 9,558 subscription rights converted/ disposed (reported at $0.00) and 4,194 warrants acquired (reported at $0.00).
• Shares owned after transaction: not disclosed in the provided filing.
• Footnote F1: The entries reflect conversion of subscription rights from the Rights Offering; each right was exercisable for a unit of (i) 1 common share and (ii) 0.4388 of a warrant.
• Footnote F2: Warrants became exercisable immediately after the offering and expire in 10 years.
• Filing timeliness: Form filed Aug 6, 2026 for a Jul 21 transaction (filed late vs. the usual two-business-day Form 4 deadline).

Context

• In plain terms: Bornstein converted rights into units (shares + fractional warrants) and paid cash to exercise derivatives to acquire common stock — this was an acquisition, not a sale. The warrants received are exercisable immediately and, if not exercised before expiry (10 years), will have no value. The filing does not show any immediate sale of the acquired shares.