As of the latest Form 4 filed Jun 12, 2026.
What F5 Networks Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 90 most recent filings for FFIV.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-12 | 2026-06-10 | Buse Elizabeth Director | SSale | −40.00 | $401.05 | $16.0K | No | Form 4 ↗ |
| 2026-06-12 | 2026-06-10 | Buse Elizabeth, Director | SSale | −120.00 | $400.58 | $48.1K | No | Form 4 ↗ |
| 2026-06-12 | 2026-06-10 | Buse Elizabeth, Director | SSale | −626.00 | $399.29 | $250K | No | Form 4 ↗ |
| 2026-06-12 | 2026-06-10 | Buse Elizabeth, Director | SSale | −214.00 | $398.53 | $85.3K | No | Form 4 ↗ |
| 2026-06-03 | 2026-06-02 | Werner Edward Cooper Chief Financial Officer | SSale | −2.50K | $400.00 | $1.00M | Yes (planned) | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | Werner Edward Cooper Chief Financial Officer | SSale | −1.50K | $350.00 | $525K | Yes (planned) | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | WHALEN CHAD MICHAEL EVP, Worldwide Sales | SSale | −6.20K | $350.19 | $2.17M | Yes (planned) | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | FOUNTAIN THOMAS DEAN EVP Global Services & Strategy | SSale | −1.33K | $330.58 | $439K | Yes (planned) | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | Locoh-Donou Francois President, CEO & Director | SSale | −383.00 | $339.88 | $130K | Yes (planned) | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | Locoh-Donou Francois, President, CEO & Director | SSale | −480.00 | $338.60 | $163K | Yes (planned) | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | Locoh-Donou Francois, President, CEO & Director | SSale | −1.27K | $337.78 | $428K | Yes (planned) | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | Locoh-Donou Francois, President, CEO & Director | SSale | −1.33K | $336.92 | $449K | Yes (planned) | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | Locoh-Donou Francois, President, CEO & Director | SSale | −80.00 | $335.28 | $26.8K | Yes (planned) | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | Locoh-Donou Francois, President, CEO & Director | SSale | −200.00 | $332.52 | $66.5K | Yes (planned) | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | Locoh-Donou Francois, President, CEO & Director | SSale | −40.00 | $331.05 | $13.2K | Yes (planned) | Form 4 ↗ |
| 2026-05-05 | 2026-05-04 | OKEKE ANGELIQUE M EVP, General Counsel | SSale | −842.00 | $322.33 | $271K | Yes (planned) | Form 4 ↗ |
| 2026-05-05 | 2026-05-04 | Maddison John Anthony Chief Product Mkting Officer | SSale | −1.00K | $322.33 | $322K | Yes (planned) | Form 4 ↗ |
| 2026-05-05 | 2026-05-04 | Werner Edward Cooper Chief Financial Officer | SSale | −599.00 | $322.33 | $193K | Yes (planned) | Form 4 ↗ |
| 2026-05-05 | 2026-05-04 | ANAND KUNAL Chief Technology Officer | SSale | −3.12K | $322.33 | $1.01M | Yes (planned) | Form 4 ↗ |
| 2026-05-05 | 2026-05-04 | WHALEN CHAD MICHAEL EVP, Worldwide Sales | SSale | −704.00 | $330.30 | $233K | Yes (planned) | Form 4 ↗ |
| 2026-05-05 | 2026-05-01 | OKEKE ANGELIQUE M EVP, General Counsel | FTax | −697.00 | $323.20 | $225K | Yes (planned) | Form 4 ↗ |
| 2026-05-05 | 2026-05-01 | OKEKE ANGELIQUE M, EVP, General Counsel | MExercise | +1.77K | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
| 2026-05-05 | 2026-05-01 | Maddison John Anthony Chief Product Mkting Officer | FTax | −230.00 | $323.20 | $74.3K | Yes (planned) | Form 4 ↗ |
| 2026-05-05 | 2026-05-01 | Maddison John Anthony, Chief Product Mkting Officer | MExercise | +454.00 | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
| 2026-05-05 | 2026-05-01 | Werner Edward Cooper Chief Financial Officer | FTax | −388.00 | $323.20 | $125K | Yes (planned) | Form 4 ↗ |
| 2026-05-05 | 2026-05-01 | Werner Edward Cooper, Chief Financial Officer | MExercise | +987.00 | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
| 2026-05-05 | 2026-05-01 | ANAND KUNAL Chief Technology Officer | FTax | −4.05K | $323.20 | $1.31M | Yes (planned) | Form 4 ↗ |
| 2026-05-05 | 2026-05-01 | ANAND KUNAL, Chief Technology Officer | MExercise | +10.3K | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
| 2026-05-05 | 2026-05-01 | MONTOYA MICHAEL F Chief Technology Ops Officer | FTax | −840.00 | $323.20 | $271K | No | Form 4 ↗ |
| 2026-05-05 | 2026-05-01 | MONTOYA MICHAEL F, Chief Technology Ops Officer | MExercise | +2.14K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-05 | 2026-05-01 | WHALEN CHAD MICHAEL EVP, Worldwide Sales | FTax | −910.00 | $323.20 | $294K | Yes (planned) | Form 4 ↗ |
| 2026-05-05 | 2026-05-01 | WHALEN CHAD MICHAEL, EVP, Worldwide Sales | MExercise | +2.32K | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
| 2026-05-05 | 2026-05-01 | FOUNTAIN THOMAS DEAN EVP Global Services & Strategy | FTax | −1.37K | $323.20 | $444K | No | Form 4 ↗ |
| 2026-05-05 | 2026-05-01 | FOUNTAIN THOMAS DEAN, EVP Global Services & Strategy | MExercise | +2.70K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-05 | 2026-05-01 | Locoh-Donou Francois President, CEO & Director | FTax | −2.45K | $323.20 | $792K | No | Form 4 ↗ |
| 2026-05-05 | 2026-05-01 | Locoh-Donou Francois, President, CEO & Director | MExercise | +6.23K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-26 | 2026-03-25 | Werner Edward Cooper Chief Financial Officer | SSale | −1.00K | $300.00 | $300K | Yes (planned) | Form 4 ↗ |
| 2026-03-26 | 2026-03-25 | Locoh-Donou Francois President, CEO & Director | SSale | −3.33K | $300.00 | $1.00M | Yes (planned) | Form 4 ↗ |
| 2026-03-13 | 2026-03-11 | Gonzalez Julie Marie Director | MExercise | +934.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-13 | 2026-03-11 | MONTOYA MICHAEL F Chief Technology Ops Officer | FTax | −367.00 | $289.52 | $106K | No | Form 4 ↗ |
| 2026-03-13 | 2026-03-11 | MONTOYA MICHAEL F, Chief Technology Ops Officer | MExercise | +934.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-13 | 2026-03-11 | MEHTA NIKHIL RAMESH Director | MExercise | +934.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-13 | 2026-03-11 | Erwin Tami A. Director | MExercise | +934.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-13 | 2026-03-11 | Combes Michel Director | MExercise | +934.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-13 | 2026-03-11 | McReynolds Maya Director | MExercise | +934.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-13 | 2026-03-11 | Dreyer Michael L Director | MExercise | +934.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-13 | 2026-03-11 | Budnik Marianne Director | MExercise | +934.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-13 | 2026-03-11 | Buse Elizabeth Director | MExercise | +934.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-13 | 2026-03-11 | HIGGINSON ALAN Director | MExercise | +934.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-06 | WHALEN CHAD MICHAEL EVP, Worldwide Sales | SSale | −688.00 | $277.05 | $191K | Yes (planned) | Form 4 ↗ |
| 2026-03-05 | 2026-03-04 | Werner Edward Cooper Chief Financial Officer | SSale | −209.00 | $286.39 | $59.9K | Yes (planned) | Form 4 ↗ |
| 2026-03-05 | 2026-03-04 | Werner Edward Cooper, Chief Financial Officer | SSale | −80.00 | $284.74 | $22.8K | Yes (planned) | Form 4 ↗ |
| 2026-03-05 | 2026-03-04 | Werner Edward Cooper, Chief Financial Officer | SSale | −80.00 | $282.23 | $22.6K | Yes (planned) | Form 4 ↗ |
| 2026-03-05 | 2026-03-04 | Werner Edward Cooper, Chief Financial Officer | SSale | −560.00 | $280.56 | $157K | Yes (planned) | Form 4 ↗ |
| 2026-03-05 | 2026-03-04 | Werner Edward Cooper, Chief Financial Officer | SSale | −40.00 | $278.21 | $11.1K | Yes (planned) | Form 4 ↗ |
| 2026-03-05 | 2026-03-04 | Locoh-Donou Francois President, CEO & Director | SSale | −120.00 | $286.67 | $34.4K | Yes (planned) | Form 4 ↗ |
| 2026-03-05 | 2026-03-04 | Locoh-Donou Francois, President, CEO & Director | SSale | −995.00 | $286.20 | $285K | Yes (planned) | Form 4 ↗ |
| 2026-03-05 | 2026-03-04 | Locoh-Donou Francois, President, CEO & Director | SSale | −720.00 | $285.03 | $205K | Yes (planned) | Form 4 ↗ |
| 2026-03-05 | 2026-03-04 | Locoh-Donou Francois, President, CEO & Director | SSale | −360.00 | $284.13 | $102K | Yes (planned) | Form 4 ↗ |
| 2026-03-05 | 2026-03-04 | Locoh-Donou Francois, President, CEO & Director | SSale | −160.00 | $282.71 | $45.2K | Yes (planned) | Form 4 ↗ |
| 2026-03-05 | 2026-03-04 | Locoh-Donou Francois, President, CEO & Director | SSale | −280.00 | $281.99 | $79.0K | Yes (planned) | Form 4 ↗ |
| 2026-03-05 | 2026-03-04 | Locoh-Donou Francois, President, CEO & Director | SSale | −693.00 | $280.73 | $195K | Yes (planned) | Form 4 ↗ |
| 2026-03-05 | 2026-03-04 | Locoh-Donou Francois, President, CEO & Director | SSale | −307.00 | $279.73 | $85.9K | Yes (planned) | Form 4 ↗ |
| 2026-03-05 | 2026-03-04 | Locoh-Donou Francois, President, CEO & Director | SSale | −120.00 | $278.12 | $33.4K | Yes (planned) | Form 4 ↗ |
| 2024-05-02 | 2024-05-02 | FOUNTAIN THOMAS DEAN EVP Global Services & Strategy | SSale | −851.00 | $167.53 | $143K | Yes (planned) | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | WHALEN CHAD MICHAEL EVP, Worldwide Sales | FTax | −992.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | WHALEN CHAD MICHAEL, EVP, Worldwide Sales | MExercise | +933.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | WHALEN CHAD MICHAEL, EVP, Worldwide Sales | MExercise | +952.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | WHALEN CHAD MICHAEL, EVP, Worldwide Sales | MExercise | +639.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | SPRAGUE KARA LYNN EVP & GM, Application Services | FTax | −1.09K | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | SPRAGUE KARA LYNN, EVP & GM, Application Services | MExercise | +1.04K | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | SPRAGUE KARA LYNN, EVP & GM, Application Services | MExercise | +1.10K | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | SPRAGUE KARA LYNN, EVP & GM, Application Services | MExercise | +639.00 | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | Rogers Scot Frazier EVP and General Counsel | FTax | −789.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | Rogers Scot Frazier, EVP and General Counsel | MExercise | +795.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | Rogers Scot Frazier, EVP and General Counsel | MExercise | +750.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | Rogers Scot Frazier, EVP and General Counsel | MExercise | +465.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | Pelzer Francis J. EVP, Chief Financial Officer | FTax | −852.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | Pelzer Francis J., EVP, Chief Financial Officer | MExercise | +878.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | Pelzer Francis J., EVP, Chief Financial Officer | MExercise | +808.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | Pelzer Francis J., EVP, Chief Financial Officer | MExercise | +484.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | Locoh-Donou Francois President, CEO & Director | FTax | −2.60K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | Locoh-Donou Francois, President, CEO & Director | MExercise | +2.52K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | Locoh-Donou Francois, President, CEO & Director | MExercise | +2.54K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | Locoh-Donou Francois, President, CEO & Director | MExercise | +1.55K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | FOUNTAIN THOMAS DEAN EVP Global Services & Strategy | FTax | −1.38K | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | FOUNTAIN THOMAS DEAN, EVP Global Services & Strategy | MExercise | +1.04K | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | FOUNTAIN THOMAS DEAN, EVP Global Services & Strategy | MExercise | +1.01K | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | FOUNTAIN THOMAS DEAN, EVP Global Services & Strategy | MExercise | +678.00 | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
| 2024-05-02 | 2024-04-30 | SPRAGUE KARA LYNN EVP & GM, Application Services | JOther | +156.00 | $129.13 | $20.1K | Yes (planned) | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also FFIV’s full analysis or the market-wide insider trading feed. The tabs above jump to FFIV’s other SEC data.
Source: SEC Form 4 filings for FFIV, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.