Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.
Market capitalisation
$23.31B
56,627,182 shares Covers every share class this company has on file.
Insiders on file
18
people who have filed Form 3, 4 or 5 naming this issuer
Value of insider-held stock
$166.97M
from the holdings reported on Forms 3/4/5; this figure has no separate as-of date on file
Insider-held share of market cap
0.72%
insider-held value divided by market capitalisation
What F5, INC. reports
Revenue and net income below are for fiscal period FY2025, the period label carried by this company’s own annual XBRL filings to the SEC. Fiscal years do not line up between companies — one company’s FY2026 can cover much the same months as another’s FY2025 — so compare the periods, not just the numbers.
Revenue
$3.09B
FY2025annual revenue, from this company’s own annual XBRL filings to the SEC
Net income
$692.38M
FY2025profit for the period, from this company’s own annual XBRL filings to the SEC
Employees
6,512
Yahoo Finance
Where the employee count comes fromi
Headcount comes from Yahoo Finance, not from a filing. The date beside it is the day we retrieved the figure — it is not the date the company counted its staff, and Yahoo does not publish that date. Unlike the SEC filings behind the other figures on this page, this one carries no open licence, so we publish the number and nothing else from that source.
Insiders at F5, INC.
Shares is what each person last reported holding here.i
Everyone below has filed at least one insider report against this company.
Value is that share count priced at the same closing price used everywhere else on this site. A row priced from only some of a person’s securities says so — we do not quietly present a partial sum as a complete one.
Rows are grouped by the role each person reports.i
The role comes from the relationship boxes a person ticks on their own insider filings — officer, director, ten per cent owner — not from anything we infer. Somebody who is both an officer and a director appears once, in the combined group, so the row count still matches the figure at the top of this page. Where no filing states a role we say so instead of guessing one.
MOption exercise or conversion Mar 11, 2026 position reported
Events from filings
Detected automatically in the filings linked below. Each headline is built from the numbers in those filings, not written by a model. Newest first; events older than 45 days stay listed and are marked as older.
Edward Cooper Werner sold 599 F5, INC. (FFIV) shares for $243,146 on Aug 3, 2026
Unusual change in a direct holding
Flagged because the change that day in the shares this person holds directly was unusually large compared with their own earlier changes. The rows below are the open-market trades reported that day; under each share count is the balance the filing reports after that line.
Edward Cooper Werner sold 599 F5, INC. (FFIV) shares for $243,146 on Aug 3, 2026
Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.
Edward Cooper Werner sold 2,500 F5, INC. (FFIV) shares for $1,000,000 on Jun 2, 2026
Unusual change in a direct holding
Flagged because the change that day in the shares this person holds directly was unusually large compared with their own earlier changes. The rows below are the open-market trades reported that day; under each share count is the balance the filing reports after that line.
Edward Cooper Werner sold 2,500 F5, INC. (FFIV) shares for $1,000,000 on Jun 2, 2026
Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.
Edward Cooper Werner sold 1,000 F5, INC. (FFIV) shares for $300,000 on Mar 25, 2026
Large trade for this person
Flagged because this trade was large compared with this person’s own earlier open-market trades in the same currency — not because it is large in absolute terms. A trade that is routine for one insider can be flagged for another.
Edward Cooper Werner sold 1,000 F5, INC. (FFIV) shares for $300,000 on Mar 25, 2026
Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.
Michael L Dreyer sold 3,067 F5, INC. (FFIV) shares for $866,151 on Feb 20, 2026
Unusual change in a direct holding
Flagged because the change that day in the shares this person holds directly was unusually large compared with their own earlier changes. The rows below are the open-market trades reported that day; under each share count is the balance the filing reports after that line.
Michael L Dreyer sold 3,067 F5, INC. (FFIV) shares for $866,151 on Feb 20, 2026
Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.
Thomas Dean Fountain sold 3,343 F5, INC. (FFIV) shares for $875,431 on Jan 26, 2026
Unusual change in a direct holding
Flagged because the change that day in the shares this person holds directly was unusually large compared with their own earlier changes. The rows below are the open-market trades reported that day; under each share count is the balance the filing reports after that line.
Thomas Dean Fountain sold 3,343 F5, INC. (FFIV) shares for $875,431 on Jan 26, 2026
Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.
Thomas Dean Fountain sold 8,318 F5, INC. (FFIV) shares for $2,077,656 on Nov 3, 2025
Unusual change in a direct holding
Flagged because the change that day in the shares this person holds directly was unusually large compared with their own earlier changes. The rows below are the open-market trades reported that day; under each share count is the balance the filing reports after that line.
Thomas Dean Fountain sold 8,318 F5, INC. (FFIV) shares for $2,077,656 on Nov 3, 2025
Total of the rows above: $2,077,656, in the currency the filings report.
Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.
Recent insider transactions
Of the 339 rows we hold,
0 are open-market
purchases and
158 open-market
sales (S) — the only codes we count as buying or selling.i
The rest — awards, shares withheld to pay tax, option exercises, gifts and so on — follow from an employment contract or a transfer arranged off-market, not from a decision to buy or sell, so counting them would turn this into a pay table.
A price of 0.00 is a real reported figure on gifts (G) and share awards (A) — not a gap in our data.
Insider transactions disclosed to the SEC for F5, INC., newest first, each with the filing behind it.
From SEC Form 4 filings. Every row links to the filing it
came from. How we calculate this.
What a Form 4 isi
The report an officer, director or large shareholder must file after trading their own company’s stock.
Subsidiaries — 19 legal entities
Subsidiaries of F5, INC.
19 legal entities named in the subsidiary exhibit filed with this company’s most recent 10-K. .
Filing on SEC.gov.
This is not the full list. SEC rules only require a company to name
its significant subsidiaries.
What that leaves outi
Smaller entities are left out of the exhibit entirely. A short list here means a short exhibit — it does not mean the company owns nothing else. Nothing on this page is inferred: every name below is copied from the filing.
Subsidiaries F5, INC. names in its
most recent annual report, with the place each one is organised.
Subsidiary
Organised in
All other subsidiaries would not in the aggregate constitute a “significant subsidiary” as defined in Regulation S-X.
—
F5 Government Solutions LLC
Virginia, U.S.A.
F5 Networks (UK) Ltd
United Kingdom
F5 Networks Australia Pty Ltd.
Australia
F5 Networks Canada, Ltd.
Canada
F5 Networks China
China
F5 Networks GmbH
Germany
F5 Networks Iberia S.L.U.
Spain
F5 Networks India Private Limited
India
F5 Networks Innovation Private Limited
India
F5 Networks Mexico S de RL de CV
Mexico
F5 Networks Poland sp z.o.o.
Poland
F5 Networks SARL
France
F5 Networks Singapore Pte Ltd
Singapore
F5 Networks, (Israel) Ltd.
Israel
F5 Networks, Japan G.K.
Japan
FCINCO Representacoes Do Brasil LTDA
Brazil
NGINX International Ltd.
Ireland
Shape Security, Inc.
Delaware, U.S.A.
What counts as a subsidiaryi
A subsidiary is a separate legal entity this company controls; it is not the same thing as a brand, a division or an office. These entities do not file with the SEC in their own right, so there is no separate page to open for them.
Think a number here is wrong?
Open the linked filing and compare —
how to report it.
Sources and technical notes
Every figure on this page comes from filings to the U.S. SEC via EDGAR.
Nothing here is estimated, and nothing is taken from press coverage or company websites.
Share count: cover page of the latest filing (dei:EntityCommonStockSharesOutstanding), taken from
F5, INC.’s own filings and multiplied by our closing price.
Full method.
What that share count meansi
the share count the company itself prints on the cover of its most recent filing, as of the date it signed that filing.
We do not take a market cap from a data vendor, and we do not estimate one: the figure
is a share count from F5, INC.’s
own SEC filings multiplied by
the closing price we hold for the same stock.
