EOS Energy Enterprises is trading 5.46% lower at MXN 66.10, mainly amid global risk-off conditions. - On September 23, 2026, the Nasdaq Composite was down 1.11% and the S&P 500 was down 0.53%. - A September 22 Form 144 filing disclosed an intended restricted-stock sale, adding investor-sentiment pressure; available coverage does not establish it as the definitive cause. - The move is also amplified by ongoing caution around insider selling and the company’s financial trajectory.