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FFIV · Software & cloud · U.S.

F5

Makes tools that keep websites and apps fast and safe from hackers.

Company Health

85
/100
Very healthy
A quick check of the business from its yearly reports (2022–2025). It doesn’t say whether the stock is a good buy.
Does it make money?
23 of 25 · Good
$22 of every $100 in sales was left as profit last year.
Is it growing?
14 of 25 · Okay
Sales grew about 5% a year over the last 3 years.
Can it handle what it owes?
23 of 25 · Good
It would take about 1 year of the cash its business brings in to pay off everything it owes.
Does it bring in spare cash?
25 of 25 · Good
After paying for buildings and equipment, $29 of every $100 in sales was left as spare cash.

Who owns it

1 of 23 own it · 1 bought more lately
bought lately
owns it
doesn’t own it
Didn’t report owning it: Whale Rock, Appaloosa, Melqart, Coatue, D1 Capital, Light Street, Lone Pine, Third Point, TCI, Pershing Square, Himalaya Capital, Greenlight, Giverny Capital, Fundsmith, Semper Augustus, Akre
Their letters don’t mention it: Arquitos, Laughing Water, Alluvial, Bireme, Kingdom Capital, Saga Partners
From each fund’s latest 13F report (Jun 30, 2026). Funds that don’t file one: from their own letters.

The numbers

From F5’s yearly reports. Tap a year to see its figures.

Sales and profit

Sales grew from $2.35 billion in the year to Sep 2020 to $3.09 billion in the year to Sep 2025, and it made a profit every year.
FY2025
Sales
$3.09 billion
Profit
$692 million

Spare cash each year

It had cash to spare every year, ending with $906 million to spare in the year to Sep 2025.
FY2025
Spare cash
$906 million
Spare cash is the cash its business brought in, minus what it spent on buildings and equipment.

What it owns and what it owes

At the end of Sep 2025 it owned $6.32 billion, including $1.34 billion in cash, and owed $2.73 billion.

Key facts

From its yearly report for the year to Sep 2025.
Sales
$3.09 billion
Profit
$692 million
Spare cash
$906 million
Cash in the bank
$1.34 billion
Everything it owes
$2.73 billion
Year ends
September
Money shown in
U.S. dollars
Latest yearly report
10-K, filed Nov 25, 2025
Figures from F5’s yearly reports to the SEC (EDGAR), collected Oct 12, 2026.
Not investment advice. Holdings come from public SEC reports and the funds’ own letters, and can be up to 4½ months old. How this works
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