Shares in SentinelOne Inc. were down around 13% as the cybersecurity company reported a widening loss in Q3 2025.SentinelOne reported revenue of $210.6 million, up 28% YoY, beating analyst expectations.The company's net loss increased to $78.4 million, driven by higher operating expenses.SentinelOne announced the expansion of its AI-driven capabilities and provided a conservative outlook for Q4 revenue.