X0508 4 2025-11-01 0 0001048695 F5, INC. FFIV 0001728330 FOUNTAIN THOMAS DEAN C/O F5, INC. 801 5TH AVENUE SEATTLE WA 98104 0 1 0 0 EVP Global Services & Strategy 1 Common Stock 2025-11-01 4 M 0 3003 0 A 42598 D Common Stock 2025-11-01 4 F 0 11787 253.05 D 30811 D Common Stock 2025-11-03 4 S 0 1683 248.4421 D 29128 D Common Stock 2025-11-03 4 S 0 3265 249.3849 D 25863 D Common Stock 2025-11-03 4 S 0 1095 250.1762 D 24768 D Common Stock 2025-11-03 4 S 0 2161 251.0461 D 22607 D Common Stock 2025-11-03 4 S 0 114 252.98 D 22493 D Restricted Stock Unit 0 2025-11-01 4 M 0 1009 0 D Common Stock 1009 0 D Restricted Stock Unit 0 2025-11-01 4 M 0 1043 0 D Common Stock 1043 4169 D Restricted Stock Unit 0 2025-11-01 4 M 0 951 0 D Common Stock 951 7604 D Shares acquired upon the vesting of the November 1, 2022, November 1, 2023, and November 1, 2024 awards of service-based Restricted Stock Units. This transaction was executed pursuant to a Rule 10b5-1 trading plan dated 09/05/2024. The price in Column 4 is a weighted average sale price. The prices actually received ranged from $247.87 to $248.83. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. The price in Column 4 is a weighted average sale price. The prices actually received ranged from $248.875 to $249.85. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. The price in Column 4 is a weighted average sale price. The prices actually received ranged from $249.88 to $250.625. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. The price in Column 4 is a weighted average sale price. The prices actually received ranged from $251.00 to $251.50. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. Each Restricted Stock Unit represents a contingent right to receive one share of F5, Inc. Common Stock on the vest date. This November 1, 2022 award of service-based Restricted Stock Units vests in twelve equal quarterly increments beginning February 1, 2023. If the reporting person continues to provide services to the Company through the vest date, the corresponding number of shares of Common Stock of F5, Inc. will be issued to the reporting person on the vest date. This November 1, 2023 award of service-based Restricted Stock Units vests in twelve equal quarterly increments beginning February 1, 2024. This November 1, 2024 award of service-based Restricted Stock Units vests in twelve equal quarterly increments beginning February 1, 2025. /s/ Lisa L. Dilek by Power of Attorney 2025-11-04