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QLYS in the 13F filings

Qualys Inc · CUSIP 74758T303

Sector · Software and IT servicesTheme · Cloud and enterprise software· L3VLUP-definedTheme · Prepackaged software
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
30 Jun 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 3 Aug 2026
Managers listing it
26
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q1 2026 and Q2 2026; 5 listed it in both
Shares listed
5,742,955
combined, among listed positions
Reported value
$783m
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: 16 buyers (opened or added shares) and 14 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +663,755.

Managers listing QLYS in Q2 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2026, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

26 of 26 holders

ActionFiling
AQR Capital Management LLC1,394,771$191m0.07%Added+355,84314 Aug 2026 (the filing on sec.gov)
Arrowstreet Capital LP985,345$135m0.06%Added+152,54913 Aug 2026 (the filing on sec.gov)
Millennium Management LLC762,709$105munder 0.1%Added+527,32714 Aug 2026 (the filing on sec.gov)
Acadian Asset Management LLC542,279$75m0.09%Added+360,17213 Aug 2026 (the filing on sec.gov)
Invesco Ltd423,064$58munder 0.1%Added+42,24414 Aug 2026 (the filing on sec.gov)
Citadel Advisors LLC378,139$52munder 0.1%Added+174,6092 Sep 2026 (the filing on sec.gov)
Point72 Asset Management LP285,895$39munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Renaissance Technologies LLC284,100$39m0.05%Trimmed-213,50013 Aug 2026 (the filing on sec.gov)
Wellington Management Group LLP141,444$19munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Janus Henderson Group Ltd134,922$19munder 0.1%Added+8,73314 Aug 2026 (the filing on sec.gov)
Freestone Grove Partners LP68,754$9.5m0.06%Added+60,28814 Aug 2026 (the filing on sec.gov)
AllianceBernstein LP100,557$8.8munder 0.1%Added+4,02814 Aug 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc47,705$6.6munder 0.1%Trimmed-65,97214 Aug 2026 (the filing on sec.gov)
Holocene Advisors LP35,038$4.8munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Tudor Investment Corp25,125$3.5munder 0.1%Trimmed-225,76014 Aug 2026 (the filing on sec.gov)
Caxton Associates LLP20,684$2.8m0.05%Added+6,17114 Aug 2026 (the filing on sec.gov)
D. E. Shaw & Co.19,931$2.7munder 0.1%Trimmed-105,18114 Aug 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP19,309$2.7munder 0.1%Added+6,51214 Aug 2026 (the filing on sec.gov)
Two Sigma Investments LP16,924$2.3munder 0.1%Trimmed-138,11214 Aug 2026 (the filing on sec.gov)
Fidelity (FMR LLC)16,271$2.2munder 0.1%Added+6,72213 Aug 2026 (the filing on sec.gov)
Winton Group Ltd12,660$1.7m0.06%Trimmed-4537 Aug 2026 (the filing on sec.gov)
Man Group PLC11,657$1.6munder 0.1%Trimmed-61,67614 Aug 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP5,279$726kunder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Neuberger Berman Group LLC4,087$562kunder 0.1%Trimmed-466,02927 Oct 2026 (the filing on sec.gov)
Susquehanna International Group LLP3,992$549kunder 0.1%Trimmed-53,54514 Aug 2026 (the filing on sec.gov)
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Largest increases and reductions, by shares

Q1 2026 to Q2 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 (4)

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.
11 in Q3 2024 to 9 in Q2 2026

Tracked managers listing it, at least.

05101520182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
QLYS by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20131$1.4mn.a.n.a.
Q4 20131$13mn.a.n.a.
Q2 20141$2.9mn.a.n.a.
Q3 20141$3.0mn.a.n.a.
Q4 20141$974kn.a.n.a.
Q1 20151$787kn.a.n.a.
Q3 20152$19mn.a.n.a.
Q4 20151$3.4mn.a.n.a.
Q2 20161$39mn.a.n.a.
Q3 20162$41mn.a.n.a.
Q4 20162$54mn.a.n.a.
Q1 20172$118mn.a.n.a.
Q2 20172$134mn.a.n.a.
Q3 20173$205mn.a.n.a.
Q4 20172$244mn.a.n.a.
Q1 20184$318mn.a.n.a.
Q2 20185$346mn.a.n.a.
Q3 20183$320mn.a.n.a.
Q4 20183$247mn.a.n.a.
Q1 20192$248mn.a.n.a.
Q2 20193$202mn.a.n.a.
Q3 20194$200mn.a.n.a.
Q4 20194$240mn.a.n.a.
Q1 20207$257mn.a.n.a.
Q2 202010$372mn.a.n.a.
Q3 20207$288mn.a.n.a.
Q4 20207$370mn.a.n.a.
Q1 20215$280mn.a.n.a.
Q2 20217$266mn.a.n.a.
Q3 20216$346mn.a.n.a.
Q4 20218$426mn.a.n.a.
Q1 202211$455mn.a.n.a.
Q2 202210$386mn.a.n.a.
Q3 202211$475mn.a.n.a.
Q4 20229$350mn.a.n.a.
Q1 202310$359mn.a.n.a.
Q2 202311$329mn.a.n.a.
Q3 202312$403mn.a.n.a.
Q4 202314$620m96
Q1 202412$583m95
Q2 202413$528m95
Q3 202411$429m47
Q4 202413$366m68
Q1 202511$329m56
Q2 20259$409m55
Q3 20255$359m24
Q4 20257$269m1513
Q1 20266$158m1910
Q2 20269$563m1614

Compare with…

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

QLYS and GOOGL →QLYS and AMZN →QLYS and MSFT →Choose a stock to compare with QLYS →

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 QLYS, latest filings →Back to the 13F Explorer →