THOMAS DEAN FOUNTAIN

CIK 1728330 · EVP Global Services & Strategy · last filed 2026-05-07

THOMAS DEAN FOUNTAIN is an EVP Global Services & Strategy who has filed 113 SEC Form 4 insider transactions across 1 company since 2018. The most recent filing shows the insider sold $439.0K of FFIV on May 7, 2026. Across all open-market trades the lifetime net is −$17.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $3.1M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

Disclosed Exposure

$3.12M

Companies

1

Total Filings

113

Lifetime Open-Market Net

-$17.39M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.

Symbol	Role	Shares	Price	Disclosed Exposure	Lifetime OM Net	Filings	Latest Filed
FFIV	EVP Global Services & Strategy	8,060	$386.77	$3.12M	-$17.39M	89	2026-05-07

Recent Filings

113 filings

Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.

Filed	Symbol	Action	Net Shares	Net $	Link
2026-05-07	FFIV	Sell (S)	−1,328	-$439.0K	EDGAR
2026-05-05	FFIV	Notice (144)	−1,328	-$438.1K	EDGAR
2026-05-05	FFIV	Mixed	+1,328	-$443.8K	EDGAR
2026-02-11	FFIV	Sell (S)	−1,297	-$361.0K	EDGAR
2026-02-10	FFIV	Notice (144)	−1,297	-$361.5K	EDGAR
2026-02-03	FFIV	Mixed	+1,297	-$386.4K	EDGAR
2026-01-28	FFIV	Sell (S)	−3,343	-$875.4K	EDGAR
2026-01-26	FFIV	Notice (144)	−3,343	-$875.4K	EDGAR
2026-01-22	FFIV	Sell (S)	−1,110	-$291.6K	EDGAR
2026-01-20	FFIV	Notice (144)	−1,110	-$291.6K	EDGAR

Showing 1–10 of 113

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Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.