FOUNTAIN THOMAS DEAN 4

4 · F5, INC. · Filed Feb 3, 2026

AI-generated summary of this filing

Updated Feb 3, 2026

F5 (FFIV) EVP Thomas Fountain Receives RSUs; Shares Withheld

What Happened

Thomas Fountain, EVP Global Services & Strategy at F5 (FFIV), had 2,699 shares issued upon the vesting/conversion of Restricted Stock Units (RSUs) on February 1, 2026. To satisfy tax withholding, 1,402 of those shares were surrendered at an effective price of $275.61 each, totaling about $386,405.
The filing also shows conversion/settlement entries for three RSU tranches (950, 707 and 1,042 shares) reported at $0 — these reflect the mechanics of converting derivative awards (RSUs) into underlying shares, not open-market sales. Net from this vesting event, Fountain retained 1,297 shares (2,699 issued minus 1,402 withheld).

Key Details

Transaction date: February 1, 2026; Form 4 filed February 3, 2026 (timely).
Reported codes: M = exercise/conversion of derivative (RSU vesting); F = payment of tax liability (share withholding).
Shares issued on vesting: 2,699; shares withheld for taxes: 1,402 at $275.61 each (~$386,405).
Additional M entries (950, 707, 1,042) total 2,699 and represent conversion/settlement of RSUs (reported at $0).
Shares owned after transaction: the filing excerpt does not disclose total post-transaction holdings; net increase from this event = +1,297 shares.
Notable footnotes: Vesting related to prior RSU awards granted Nov 1, 2023; Nov 1, 2024; and Nov 3, 2025. Those awards vest in twelve equal quarterly increments with start dates noted in the filing.

Context

This was an RSU vesting and tax-withholding event, a routine administrative transaction rather than an open-market buy or sale indicating new investment sentiment. The zero-dollar lines reflect RSU conversion mechanics; the only monetary disposition was the tax withholding of 1,402 shares (code F).

Form 4

Period: 2026-02-01

EVP Global Services & Strategy

Transactions

Exercise/Conversion
Common Stock
[F1]
2026-02-01+2,699→ 10,759 total
Tax Payment
Common Stock
2026-02-01$275.61/sh−1,402$386,405→ 9,357 total
Exercise/Conversion
Restricted Stock Unit
[F2][F3][F4]
2026-02-01−950→ 6,654 total
Exercise: $0.00→ Common Stock (950 underlying)
Exercise/Conversion
Restricted Stock Unit
[F2][F5][F4]
2026-02-01−707→ 7,786 total
Exercise: $0.00→ Common Stock (707 underlying)
Exercise/Conversion
Restricted Stock Unit
[F2][F6][F4]
2026-02-01−1,042→ 3,127 total
Exercise: $0.00→ Common Stock (1,042 underlying)

Footnotes (6)

[F1]Shares acquired upon the vesting of November 1, 2023, November 1, 2024, and November 3, 2025 awards of service-based Restricted Stock Units.
[F2]Each Restricted Stock Unit represents a contingent right to receive one share of F5, Inc. Common Stock on the vest date.
[F3]This November 1, 2024 award of service-based Restricted Stock Units vests in twelve equal quarterly increments beginning February 1, 2025.
[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.
[F5]This November 3, 2025 award of service-based Restricted Stock Units vests in twelve equal quarterly increments beginning February 1, 2026.
[F6]This November 1, 2023 award of service-based Restricted Stock Units vests in twelve equal quarterly increments beginning February 1, 2024.

Signature

/s/ Angelique M. Okeke by Power of Attorney|2026-02-03

1 file