Portnoy Law Firm Announces Class Action on Behalf of F5, Inc. Investors


LOS ANGELES, Dec. 23, 2025 (GLOBE NEWSWIRE) -- The Portnoy Law Firm advises F5, Inc., (“F5” or the "Company") (NASDAQ: FFIV) investors off a class action on behalf of investors that bought securities between October 28, 2024 and October 27, 2025, inclusive (the “Class Period”). F5 investors have until February 17, 2026 to file a lead plaintiff motion.

Investors are encouraged to contact attorney Lesley F. Portnoy, by phone 844-767-8529 or email: lesley@portnoylaw.com, to discuss their legal rights, or join the case via https://portnoylaw.com/F5. The Portnoy Law Firm can provide a complimentary case evaluation and discuss investors’ options for pursuing claims to recover their losses.

The lawsuit comes in the wake of F5's October 15, 2025 report that, on August 9, 2025, it learned of a major cybersecurity incident involving a nation-state actor that gained unauthorized access to certain Company systems, including its highest revenue product (F5 BIG-IP). This and related subsequent disclosures drove the price of F5 shares sharply lower.

The Portnoy Law Firm represents investors in pursuing claims caused by corporate wrongdoing. The Firm’s founding partner has recovered over $5.5 billion for aggrieved investors. Attorney advertising. Prior results do not guarantee similar outcomes.

Lesley F. Portnoy, Esq.
Admitted CA, NY and TX Bar
lesley@portnoylaw.com
310-692-8883
www.portnoylaw.com

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