13F Insight
DOSSIER · 13F Holders · Q1 2026Technology · Services-Prepackaged SoftwareCheap mega-capRe-rated
QLYS

QUALYS INC

438 institutions still hold QUALYS INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 74758T303·Services-Prepackaged Software·438 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 9.4%
vs prior quarter
13F value held
$2.0B
62.0% inst. owned
of float
Holders
438
-56 QoQ
filers reporting
Activity
+13 / −78
+1,032 added · −928 reduced
this quarter
Concentration
23.58%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

438 institutions reported QLYS in Q1 2026. BlackRock, Inc. leads at 23.6% of the visible book. -56 net institutions QoQ — distribution reading.

Top holders

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

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$471M5.4M0.01%Q1 202602
Vanguard Portfolio Management
CIK 0002100121
$223M2.5M0.01%Q1 202603
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$139M1.6M0.00%Q1 202604
STATE STREET CORP
CIK 0000093751
$122M1.4M0.00%Q1 202605
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$116M1.3M0.01%Q1 202606
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$91M1.0M0.04%Q1 202607
Legal & General Group Plc
CIK 0000764068
$90M1.0M0.02%Q1 202608
Boston Trust Walden Corp
CIK 0001534866
$89M1.0M0.73%Q1 202609
FIRST TRUST ADVISORS LP
CIK 0001125816· Index
$88M996K0.06%Q1 202610
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$73M833K0.04%Q1 202611
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$67M763K0.01%Q1 202612
JPMORGAN CHASE & CO
CIK 0000019617
$67M761K0.00%Q1 202613
MORGAN STANLEY
CIK 0000895421
$57M646K0.00%Q1 202614
RWA WEALTH PARTNERS, LLC
CIK 0001544576
$48M549K0.53%Q1 202615
NORTHERN TRUST CORP
CIK 0000073124· Index
$45M511K0.01%Q1 202616
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$44M502K0.01%Q1 202617
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$44M498K0.07%Q1 202618
Neuberger Berman Group LLC
CIK 0001465109
$41M470K0.03%Q1 202619
CDAM (UK) Ltd
CIK 0001719387
$41M469K9.14%Q1 202620
LONDON CO OF VIRGINIA
CIK 0001259887
$41M466K0.25%Q1 2026
Page 1 of 22
418 more holders available. Log in →