SentinelOne's stock closes down 8% after the company announced plans to lay off 8% of its workforce and forecasted Q2 and FY revenue guidance below estimates (Samantha Subin/CNBC)

Samantha Subin / CNBC: SentinelOne's stock closes down 8% after the company announced plans to lay off 8% of its workforce and forecasted Q2 and FY revenue guidance below estimates — SentinelOne shares sank 8% as the cybersecurity company laid off 8% of its full-time workforce to focus on…