DOSSIER · 13F Holders · Q2 2026Technology · Services-Prepackaged Software
QLYS

QUALYS INC

460 institutions still hold QUALYS INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 74758T303·Services-Prepackaged Software·460 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$3.4B
visible holders
Holders
460
filers reporting
Concentration
23.36%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q2 2026

460 institutions reported QLYS in Q2 2026. BlackRock, Inc. leads at 23.4% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$792M5.8M0.01%Q2 2026
02
Vanguard Portfolio Management
CIK 0002100121· Index
$371M2.7M0.02%Q2 2026
03
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$219M1.6M0.00%Q2 2026
04
STATE STREET CORP
CIK 0000093751
$200M1.5M0.01%Q2 2026
05
Legal & General Group Plc
CIK 0000764068
$198M1.4M0.04%Q2 2026
06
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$194M1.4M0.01%Q2 2026
07
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$191M1.4M0.07%Q2 2026
08
FIRST TRUST ADVISORS LP
CIK 0001125816· Index
$155M1.1M0.09%Q2 2026
09
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$135M985K0.06%Q2 2026
10
Boston Trust Walden Corp
CIK 0001534866
$135M985K1.03%Q2 2026
11
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$105M763K0.04%Q2 2026
12
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$99M719K0.02%Q2 2026
13
MORGAN STANLEY
CIK 0000895421
$85M621K0.00%Q2 2026
14
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
CIK 0001705339
$76M554K0.09%Q2 2026
15
RWA WEALTH PARTNERS, LLC
CIK 0001544576
$75M549K0.72%Q2 2026
16
Clark Capital Management Group, Inc.
CIK 0001352187
$75M544K0.41%Q2 2026
17
Portolan Capital Management, LLC
CIK 0001350290
$73M530K2.73%Q2 2026
18
VOYA INVESTMENT MANAGEMENT LLC
CIK 0001068837
$72M521K0.06%Q2 2026
19
NORTHERN TRUST CORP
CIK 0000073124· Index
$71M517K0.01%Q2 2026
20
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$71M515K0.01%Q2 2026
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Insiders at QUALYS INC
Pfeiffer WendyPosey Bruce KThakar Sumedh SKim Joo MiHank Jeffrey PBerquist ThomasBrooks Bradford L.Rogers Kristi Marie