- Firewall Upgrade Disclosure: On August 6, 2025, Fortinet revealed it was 40–50% through its FortiGate firewall upgrade cycle, causing its stock to drop $21.28 (22.03%) to $75.30.
- Class Action Lawsuit: A securities fraud class action was filed on November 1, 2025. Investors have until November 21, 2025, to apply for Lead Plaintiff status.