Eos Energy Enterprises is trading 5% down at $3.85, with no clear company-specific catalyst identified for September 23, 2026.
- A September 22 Form 144 disclosed a planned restricted-stock sale; recent insider filings also show sales by senior officers, including the CEO, but those transactions do not clearly explain the intraday decline.
- Broader markets are lower, but the decline is substantially larger than major-index declines.