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FFIV in the 13F filings

F5 Inc · CUSIP 315616102

Sector · Technology hardware and equipment
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
31
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 6 listed it in both
Shares listed
5,945,455
combined, among listed positions
Reported value
$1.7bn
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 18 buyers (opened or added shares) and 15 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +379,095.

Managers listing FFIV in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

31 of 31 holders

ActionFiling
Invesco Ltd1,444,819$418munder 0.1%Trimmed-92,86112 May 2026 (the filing on sec.gov)
Wellington Management Group LLP817,666$237munder 0.1%Trimmed-21,29315 May 2026 (the filing on sec.gov)
AllianceBernstein LP828,314$211m0.07%Added+621,67615 May 2026 (the filing on sec.gov)
AQR Capital Management LLC682,372$193m0.09%Added+52,97015 May 2026 (the filing on sec.gov)
Point72 Asset Management LP482,256$140m0.18%Added+122,98915 May 2026 (the filing on sec.gov)
Citadel Advisors LLC306,985$89munder 0.1%Trimmed-129,58315 May 2026 (the filing on sec.gov)
Freestone Grove Partners LP283,480$82m0.58%Newnew15 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)179,686$52munder 0.1%Added+19,55515 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC156,508$45m0.06%Trimmed-328,11313 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC147,850$43m0.05%Added+146,31315 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc131,132$38munder 0.1%Trimmed-34,00215 May 2026 (the filing on sec.gov)
Man Group PLC128,432$37m0.07%Added+97,85815 May 2026 (the filing on sec.gov)
Millennium Management LLC109,184$32munder 0.1%Trimmed-50,55715 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC40,707$12munder 0.1%Added+31,44027 Oct 2026 (the filing on sec.gov)
Tudor Investment Corp37,808$11munder 0.1%Added+17,67115 May 2026 (the filing on sec.gov)
Walleye Capital LLC33,765$9.8munder 0.1%Added+7,75413 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP27,401$7.9munder 0.1%Trimmed-26,27515 May 2026 (the filing on sec.gov)
Jane Street Group LLC17,045$4.9munder 0.1%Added+14,32412 May 2026 (the filing on sec.gov)
Holocene Advisors LP15,993$4.6munder 0.1%Added+8,46515 May 2026 (the filing on sec.gov)
Two Sigma Investments LP15,127$4.4munder 0.1%Held015 May 2026 (the filing on sec.gov)
Woodline Partners LP11,132$3.2munder 0.1%Added+1,29415 May 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP10,760$3.1munder 0.1%Added+8,55115 May 2026 (the filing on sec.gov)
Caxton Associates LLP8,761$2.5m0.06%Trimmed-3,24714 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd7,920$2.3munder 0.1%Trimmed-46518 May 2026 (the filing on sec.gov)
Verition Fund Management LLC6,507$1.9munder 0.1%Trimmed-12,36015 May 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (4)

Exited (3)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
12 in Q3 2024 to 12 in Q2 2026

Tracked managers listing it, at least.

051015202014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
FFIV by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201312$782mn.a.n.a.
Q3 201310$767mn.a.n.a.
Q4 201314$1.2bnn.a.n.a.
Q1 201414$1.8bnn.a.n.a.
Q2 201414$1.6bnn.a.n.a.
Q3 201415$1.6bnn.a.n.a.
Q4 201414$1.6bnn.a.n.a.
Q1 201514$1.1bnn.a.n.a.
Q2 201512$957mn.a.n.a.
Q3 201512$955mn.a.n.a.
Q4 201515$760mn.a.n.a.
Q1 201612$780mn.a.n.a.
Q2 201616$999mn.a.n.a.
Q3 201617$922mn.a.n.a.
Q4 201619$1.3bnn.a.n.a.
Q1 201718$1.1bnn.a.n.a.
Q2 201716$723mn.a.n.a.
Q3 201714$758mn.a.n.a.
Q4 201715$1.1bnn.a.n.a.
Q1 201814$1.2bnn.a.n.a.
Q2 201820$1.5bnn.a.n.a.
Q3 201818$2.1bnn.a.n.a.
Q4 201818$1.6bnn.a.n.a.
Q1 201916$1.5bnn.a.n.a.
Q2 201919$1.6bnn.a.n.a.
Q3 201917$1.7bnn.a.n.a.
Q4 201915$1.5bnn.a.n.a.
Q1 202019$1.2bnn.a.n.a.
Q2 202018$1.7bnn.a.n.a.
Q3 202016$1.3bnn.a.n.a.
Q4 202016$2.2bnn.a.n.a.
Q1 202110$2.3bnn.a.n.a.
Q2 202112$1.9bnn.a.n.a.
Q3 202113$2.0bnn.a.n.a.
Q4 202114$2.5bnn.a.n.a.
Q1 202210$2.1bnn.a.n.a.
Q2 20228$1.5bnn.a.n.a.
Q3 202210$1.4bnn.a.n.a.
Q4 202211$1.3bnn.a.n.a.
Q1 202312$1.3bnn.a.n.a.
Q2 202314$997mn.a.n.a.
Q3 202315$1.1bnn.a.n.a.
Q4 202310$1.0bn38
Q1 20249$953m56
Q2 20248$862m53
Q3 202412$1.0bn57
Q4 202412$1.3bn75
Q1 202515$1.4bn97
Q2 202511$1.3bn211
Q3 202510$1.5bn82
Q4 20257$1.1bn2013
Q1 202613$1.4bn1815
Q2 202612$2.2bn1518

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

FFIV and AAPL →FFIV and SNDK →FFIV and CSCO →Choose a stock to compare with FFIV →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own FFIV, latest filings →Back to the 13F Explorer →