Thomas Dean Fountain - 01 Aug 2026 Form 4 Insider Report for F5, INC. (FFIV)

Reporting relationship: EVP Global Services & Strategy
Issuer ticker: FFIV
Reported as of: 01 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 04 Aug 2026, 17:07:23 UTC
Prior SEC filing: 07 May 2026
Next SEC filing: 06 Aug 2026
Source filing: View source filing
Reporting owner signature: /s/ Angelique M. Okeke by Power of Attorney

Key filing fact

Thomas Dean Fountain filed Form 4 for F5, INC. (FFIV) on 04 Aug 2026.

Key facts

This page summarizes Thomas Dean Fountain's Form 4 filing for F5, INC. (FFIV).
5 reported transactions and 3 derivative rows are listed below.
Accepted by SEC: 04 Aug 2026, 17:07.

Change

Previous filing in this sequence was filed on 07 May 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001728330 Primary reporting owner

FOUNTAIN THOMAS DEAN

Relationship: EVP Global Services & Strategy
Address: C/O F5, INC., 801 5TH AVENUE, SEATTLE
Signature: /s/ Angelique M. Okeke by Power of Attorney
Signature date: 04 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

FFIV transaction

Common Stock

Options Exercise

Transaction value
Shares: +2,700
Change %: +33%
Price: $0.000000^*
Shares after: 10,760
Date: 01 Aug 2026
Ownership: Direct
Footnotes: F1

FFIV transaction

Common Stock

Tax liability

Transaction value
Shares: -1,492
Change %: -14%
Price: $402.57^*
Shares after: 9,268
Date: 01 Aug 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

FFIV transaction Derivative

Restricted Stock Unit

Options Exercise

Transaction value
Shares: -950
Change %: -17%
Price: $0.000000^*
Shares after: 4,753
Date: 01 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 950
Exercise price: $0.000000
Footnotes: F2, F3, F4

FFIV transaction Derivative

Restricted Stock Unit

Options Exercise

Transaction value
Shares: -708
Change %: -10%
Price: $0.000000^*
Shares after: 6,370
Date: 01 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 708
Exercise price: $0.000000
Footnotes: F2, F4, F5

FFIV transaction Derivative

Restricted Stock Unit

Options Exercise

Transaction value
Shares: -1,042
Change %: -50%
Price: $0.000000^*
Shares after: 1,043
Date: 01 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,042
Exercise price: $0.000000
Footnotes: F2, F4, F6

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote F1

Shares acquired upon the vesting of the November 1, 2023, November 1, 2024, and November 3, 2025 awards of service-based Restricted Stock Units.

Footnote F2

Each Restricted Stock Unit represents a contingent right to receive one share of F5, Inc. Common Stock on the vest date.

Footnote F3

This November 1, 2024 award of service-based Restricted Stock Units vests in twelve equal quarterly increments beginning February 1, 2025.

Footnote F4

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.

Footnote F5

This November 3, 2025 award of service-based Restricted Stock Units vests in twelve equal quarterly increments beginning February 1, 2026.

Footnote F6

This November 1, 2023 award of service-based Restricted Stock Units vests in twelve equal quarterly increments beginning February 1, 2024.