144 0001746640 XXXXXXXX LIVE 0001048695 F5, INC. 000-26041 801 5th Avenue Seattle WA 98104 2062725555 CHAD WHALEN Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

6200 2139124.00 56419247 05/08/2026 NASDAQ Common 02/01/2025 RSU/PSU Issuer N 6200 02/01/2025 N/A N 10b5-1 Sales for CHAD WHALEN

801 5th Avenue Seattle WA 98104

Common 05/04/2026 704 232531.62 10b5-1 Sales for CHAD WHALEN

801 5th Avenue Seattle WA 98104

Common 03/06/2026 688 190610.40 The securities to be sold were acquired upon the vesting of restricted stock units and performance stock units during the period of 2/1/2025 through 8/1/2025. 05/08/2026 12/05/2025 /s/ Chad Whalen