NEW YORK, Oct. 20, 2025 (GLOBE NEWSWIRE) -- The law firm of Kirby McInerney LLP is investigating potential claims against F5, Inc.(“F5” or the “Company”) (NASDAQ: FFIV). The investigation concerns whether the Company may have violated federal securities laws or engaged in other unlawful business practices.

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What Happened?

On October 15, 2025, F5 revealed that it had learned in early August that a “highly sophisticated nation-state threat actor had gained unauthorized access to certain F5 systems.” The Company added, “during the course of its investigation, F5 determined that the threat actor maintained long-term, persistent access to certain F5 systems, including the BIG-IP product development environment and engineering knowledge management platform,” and that “through this access, certain files were exfiltrated, some of which contained certain portions of the Company’s BIG-IP source code and information about undisclosed vulnerabilities that it was working on in BIG-IP.” On this news, the price of F5 shares declined by $35.40 per share, or approximately 10.70%, from $330.75 per share on October 15, 2025 to close at $295.35 on October 16, 2025.

What to Do Next?

If you acquired F5 securities, have information, or would like to learn more about this investigation, contact Thomas W. Elrod of Kirby McInerney LLP by email at investigations@kmllp.com, or by filling out the form below to discuss your rights or interests with respect to these matters without any cost to you.

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Kirby McInerney LLP is a New York-based plaintiffs’ law firm concentrating in securities, antitrust, whistleblower, and consumer litigation. The firm’s efforts on behalf of shareholders in securities litigation have resulted in recoveries totaling billions of dollars.

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Contacts
Kirby McInerney LLP
Thomas W. Elrod, Esq.
212-699-1171
https://www.kmllp.com
investigations@kmllp.com