undamentalytics Newsletter

F5, Inc. insider trading

Every open-market purchase and sale by F5, Inc.'s officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

No insider has bought shares on the open market in five years.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.
F5, Inc. insider open-market trades
DateInsiderTrade SharesPriceValue 1M after 3M after 6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following F5, Inc.’s insiders pay?

From January 26, 2010 to August 3, 2026, 17 insiders reported 2 open-market purchases and 67 sales not made under a pre-set plan in F5, Inc. Twelve months after each purchase was reported, the shares were −22.6% against the S&P 500 on average (median −22.6%), over 2 purchases with a full year of prices; 50% beat the index. After sales, the shares moved −5.2% against the index over 12 months (a negative figure means selling was the right call). That rests on fewer than 20 purchases, too few to read much into. Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on August 4, 2020 into $16,520 by November 2, 2026, +8.4% a year. It held shares 9% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $14,301 (+5.9% a year), and held throughout $24,950 (+15.8%).

$0$10.0k$20.0k 2020202120222023202420252026 $24.9k$16.5k$14.3k
Copying F5, Inc.'s insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by F5, Inc.'s insiders from August 4, 2020, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 9% of the time.
F5, Inc.: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Higginson Alan Director 0 — — 30 −3.1% (28) February 20, 2026
Bevier Deborah L Director 0 — — 8 −15.6% (8) February 10, 2021
Dreyer Michael L Director 0 — — 6 −0.1% (5) February 23, 2026
Ames A Gary Director 0 — — 4 +13.6% (4) May 21, 2014
Fountain Thomas Dean EVP Global Services & Strategy 1 +15.8% (1) 100% 2 −9.6% (2) November 3, 2022
Guelich Karl Director 0 — — 3 −5.1% (3) October 31, 2011
Budnik Marianne Director 0 — — 2 −17.5% (2) March 14, 2025
Buse Elizabeth Director 0 — — 2 +8.2% (1) June 12, 2026
Chadwick Jonathan Director 0 — — 2 −20.4% (2) August 1, 2018
Whalen Chad Michael EVP, Worldwide Sales 0 — — 2 −15.9% (2) November 3, 2022
Anderson Mark EVP, Worldwide Sales 1 −61.0% (1) 0% 0 — May 1, 2012
Bergeron Sandra E. Director 0 — — 1 −14.5% (1) April 30, 2020
Mehta Nikhil Ramesh Director 0 — — 1 — August 3, 2026
Myers Marie Director 0 — — 1 −9.9% (1) June 4, 2021
Rogers Scot Frazier EVP and General Counsel 0 — — 1 +24.2% (1) February 26, 2016
Schramm Lyra Amber Chief People Officer 0 — — 1 −24.5% (1) February 4, 2025
Yamamoto Mika EVP, Chief Marketing Officer 0 — — 1 −4.7% (1) November 3, 2022

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded F5, Inc.

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of F5, Inc. in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After 5 selling crowds, −0.4%. One company's history is too short to judge by; the test across every company is the better guide.

MonthCrowd3 months on, vs S&P 5006 months12 months
May 30, 20253 selling0.0%−32.8%+13.0%
November 30, 20223 selling−5.4%−10.9%−2.7%
August 31, 20183 selling−4.4%−11.3%−35.7%
November 30, 20104 selling−25.5%−29.4%−24.9%
May 28, 20103 selling+28.4%+82.3%+36.0%

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Total returns from the month end; past patterns are not a forecast.

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