F5(US:FFIV) Businesswire·2025-12-26 17:49Core Viewpoint - F5, Inc. is facing a class action lawsuit due to a significant security breach that led to unauthorized access to its systems, resulting in financial losses for investors during the specified class period from October 28, 2024, to October 27, 2025 [1][5]. Group 1: Security Breach and Financial Impact - On October 15, 2025, F5 disclosed that a sophisticated nation-state threat actor gained unauthorized access to its systems, including the BIG-IP product development environment, leading to the exfiltration of files containing portions of the BIG-IP source code and information on undisclosed vulnerabilities [2][5]. - Following the breach announcement, F5's stock price dropped by $35.40, or 10.7%, closing at $295.35 per share on October 16, 2025, indicating a significant impact on investor confidence [2][4]. - On October 27, 2025, F5 reported its fourth quarter fiscal 2025 results, projecting low growth expectations for fiscal 2026 due to the security breach, which would result in reduced sales, elongated sales cycles, and increased expenses for remediation efforts [3][4]. Group 2: Class Action Lawsuit Details - The class action lawsuit alleges that F5's management made materially false and misleading statements regarding the company's business and failed to disclose the significant security incident, which posed risks to its clientele and future prospects [5]. - Investors who purchased F5 securities during the class period can file a lead plaintiff motion by February 17, 2026, to participate in the lawsuit [1][6].