$EOSE (EOS ENERGY ENTERPRISES) — 8-K: EOSE names Michelle Buczkowski Chief Commercial Officer; Nathan Kroeker exits Oct 20

Eos Energy Enterprises appointed Michelle Buczkowski as Chief Commercial Officer effective August 24, 2026. Buczkowski, Chief Administrative Officer since November 2025, secured the $24 million Pennsylvania grant behind the Company’s manufacturing expansion and led engagement that positioned Eos for selection into the Golden Dome program. Nathan Kroeker, who joined in January 2023 as CFO and became Chief Commercial Officer in 2025, will depart October 20, 2026 following a transition period. Sales, business development, government affairs, marketing, and communications now report to Buczkowski.

Eos Energy Enterprises appointed Michelle Buczkowski as Chief Commercial Officer effective August 24, 2026. Buczkowski, Chief Administrative Officer since November 2025, secured the $24 million Pennsylvania grant behind the Company’s manufacturing expansion and led engagement that positioned Eos for selection into the Golden Dome program. Nathan Kroeker, who joined in January 2023 as CFO and became Chief Commercial Officer in 2025, will depart October 20, 2026 following a transition period. Sales, business development, government affairs, marketing, and communications now report to Buczkowski.