#United States #San Francisco #Securities Class Action #Cybersecurity Incident #F5 Inc

F5, Inc. Class Action Lawsuit: Impact of Cybersecurity Incident on Investors

In January 2026, a securities class action lawsuit was initiated against F5, Inc. (NASDAQ: FFIV) in the wake of a significant cybersecurity situation that emerged in August 2025. This lawsuit represents investors who acquired F5 securities between October 28, 2024, and October 27, 2025. The incident, characterized by the company as a "material cybersecurity incident," has sparked scrutiny regarding F5's disclosure practices and whether they adequately informed investors about the potential threats to their core products.

On October 15, 2025, F5 disclosed that its systems had been breached by a sophisticated threat actor, resulting in compromised access to their BIG-IP product development environment and the exfiltration of sensitive source code. Despite this revelation, F5 initially claimed that the incident did not substantially affect its operations, which led to a dramatic decline in its stock price—a drop of $35.40 or 10% the following day. The downward trend was exacerbated by a subsequent announcement on October 27, revealing dismal revenue growth forecasts for 2026 ranging from 0% to 4%, contrasting sharply with the 10% growth forecast from the previous year. This forecast was attributed to delays and reduced renewals directly linked to the security breach, resulting in a further share price decline of $22.83 or 7% the following trading day.

The firm Hagens Berman, leading the lawsuit, is investigating whether F5 management was aware of the material implications of the breach long before their public disclosures. Their investigation focuses on whether the company misled investors concerning the security of its products and the financial repercussions of the incident. As of now, the investigation's core allegation centers on the undisclosed breach of the BIG-IP source code, a crucial component of F5's product line.

The lead plaintiff deadline for participants in the class action is set for February 17, 2026. This means any investor who purchased FFIV shares during the specified class period may petition the court to lead the litigation. For investors looking for clarity or those who have suffered losses, Hagens Berman has set up a secure portal for submission or direct contact through email.

Questions and Concerns

The lawsuit has raised several questions among the investing community, including the following:

• - What exactly happened to F5, Inc.? The company's security was compromised by a sophisticated threat actor, which resulted in substantial financial ramifications and disappointing revenue guidance.
• - What is the deadline for lead plaintiffs? Investors should be aware that they need to act by February 17, 2026, if they want to play a pivotal role in the litigation.
• - How can investors reach Hagens Berman regarding the F5 investigation? Interested parties can reach out through a secure online portal or by contacting the firm directly via email.

With the ongoing investigation and the potential implications for F5, investors are encouraged to remain vigilant and proactive in assessing their positions and rights related to this ongoing class action. Hagens Berman has a strong history of representing clients in complex litigation and will work to ensure accountability from F5 regarding its handling of the cybersecurity breach and its communication with investors.

In summary, the situation surrounding F5, Inc. underlines the critical importance of cybersecurity in maintaining investor confidence and the need for transparent communication regarding potential risks. As the situation develops, updates will be forthcoming, highlighting any changes or important decisions made by the courts and the companies involved.