$FFIV

$370.11 -$89.25 (19.43%) Live

$FFIV Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 56.6M shares outstanding

Who owns FFIV?

By type of holder

Institutions 96.5% Insiders 0.7% Everyone else 2.7%

Concentration Top 10 holders own 45.1%

BlackRock, Inc. 11.1% · Hotchkis & Wiley Capital Management LLC 3.6%

Institutional ownership

96.5%

-3.5 pts vs last qtr

Institutional holders

830

+102 vs last qtr

Net shares bought

−2.0M

by institutions in Q2 2026

New / sold out

170 / 68

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Jane Street Group, LLC +868.4K
Norges Bank NEW +834.5K

Biggest sellers in Q2 2026

Hotchkis & Wiley Capital Management LLC −2.5M
Jericho Capital Asset Management L.P. −524.3K

Who is planning to sell?

Notices of proposed sale, last 12 months

$29.3M

52 notices from 15 people

Shares covered

95.5K

0.17% of the company

Arranged in advance

86%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Thomas D Fountain Officer 10b5-1 $5.75M
Francois Locoh-Donou Director 10b5-1 $5.47M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2016–FY2025

−13.7%

−1.62% a year

Each share's claim on the business

+15.8%

grew without buying or selling a share

Spent on buybacks vs paid in stock

$4.55B vs $2.03B

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years80% 3–5 years4% 1–3 years5% Under 1 year12%

Quarterly turnover

13.7%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting FFIV on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	6.3M	11.09%	+44.2K (+0.7%)	≤2021	0.0%
Shares held by quarter Peak holding6.5M (Q2'25) Change over 8 quarters+524.2K Share of the company11.090% BlackRock, Inc.'s full portfolio →
HW Hotchkis & Wiley Capital Management LLC	2.1M	3.64%	−2.5M (−55.0%)	≤2021	2.5%
Shares held by quarter Peak holding5.5M (Q3'24) Change over 8 quarters−3.4M Share of the company3.640% Hotchkis & Wiley Capital Management LLC's full portfolio →

BlackRock, Inc.

6.3M

% of company

11.09%

Change vs last qtr

+44.2K (+0.7%)

Held since

≤2021

Hotchkis & Wiley Capital Management LLC

2.1M

% of company

3.64%

Change vs last qtr

−2.5M (−55.0%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding F5, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting FFIV on Form N-PORT; together they hold 40.0% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$745M	1.8M	3.16%	0.03%	June 30, 2026
V5 Vanguard 500 Index Fund Vanguard Index Funds	$608M	1.5M	2.58%	0.04%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$745M

% of company

3.16%

% of the fund

0.03%

As of

June 30, 2026

Vanguard 500 Index Fund

Vanguard Index Funds

Position value

$608M

% of company

2.58%

% of the fund

0.04%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding F5, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
LF Locoh-Donou Francois Insider	189.0K	0.33%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.330% Locoh-Donou Francois's insider activity →
SK Sprague Kara Lynn Insider	71.4K	0.13%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.130% Sprague Kara Lynn's insider activity →

Locoh-Donou Francois

Insider

189.0K

% of company

0.33%

Change vs last qtr

—

Held since

—

Sprague Kara Lynn

Insider

71.4K

% of company

0.13%

Change vs last qtr

—

Held since

—

20 more holders behind a free account

See every insider and 5%+ holder of F5, Inc..

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