Skip to content
sellWeak cluster of 210b5-1 plan

Thomas Dean Fountain sold $875k of FFIV

EVP Global Services & Strategy at F5, INC.. 3,343 shares at an average of $261.87, traded Jan 26, 2026, filed Jan 28, 2026.

Warning score
36
Value
$875k
3,343 shares
Holdings after
8,060
-29% from before
From 52-week low
+19%
low $223.99, close $267.45
From 52-week high
-22%
high $343.17, as of Jan 26, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $875k at market
    +23
  • Share of holdings sold
    Sold 29% of holdings
    +10
  • Cluster
    2 insiders selling within 14 days
    +8
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m -7.2%, 3m +12.3%, 6m +32.4%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

FFIVOct 12, 2026 · close 473.49
Since filing Jan 28, 2026: +62.0%SPY +12.8% · excess +49.2%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001048695-26-000020, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jan 26, 2026SOpen-market sale
Common Stock10b5-1
-3,343$261.87$875k8,060Jan 28, 2026

Related signals

Other insiders at F5, INC. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
48Moderate
FFIVsell 210b5-1
F5, INC.
Michael F Montoya
Chief Technology Ops Officer
$1.8M
4,426 shares
-77%
17Weak
FFIVsell 210b5-1
F5, INC.
John Anthony Maddison
Chief Product Mkting Officer
$83k
204 shares
-15%
45Moderate
FFIVsell 810b5-1
F5, INC.
Francois Locoh-Donou
President, CEO & Director
$1.6M
3,782 shares
-3%
33Weak
FFIVsell 810b5-1
F5, INC.
Thomas Dean Fountain
EVP Global Services & Strategy
$501k
1,208 shares
-13%
6Weak
FFIVsell 810b5-1
F5, INC.
Kunal Anand
Chief Technology Officer
$159k
392 shares
-3%
9Weak
FFIVsell 810b5-1
F5, INC.
Chad Michael Whalen
EVP, Worldwide Sales
$285k
703 shares
-3%
35Weak
FFIVsell 810b5-1
F5, INC.
Edward Cooper Werner
Chief Financial Officer
$243k
599 shares
-60%
21Weak
FFIVsell 810b5-1
F5, INC.
John Anthony Maddison
Chief Product Mkting Officer
$406k
1,000 shares
-42%
12Weak
FFIVsell 810b5-1
F5, INC.
Angelique M Okeke
EVP, General Counsel
$208k
515 shares
-19%
65Notable
FFIVsell 8
F5, INC.
Nikhil Ramesh Mehta
director
$1.6M
4,000 shares
-36%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Thomas Dean Fountain sold $875k of FFIV | InsiderTell