QUALYS, INC.

PublicCIK: 1107843
QLYSNASDAQ
Location

FOSTER CITY, CA

13F Filings

Institutional Holders

QUALYS, INC.QLYS— Latest position per institution from SEC 13F filings

15

Institutional holders

38.76M

Total shares held

4.45B

Estimated value

1.94M

Avg. position size

1

BLACKROCK, INC.

CIK 2012383

Shares

5.76M

Value

792.32M

Filed

Jun 30, 2026

2

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

CIK 1081019

Shares

5.65M

Value

41.11K

Filed

Jun 30, 2026

3

BLACKROCK FINANCE, INC.

CIK 1364742

Shares

5.31M

Value

757.70M

Filed

Jun 30, 2024

4

VANGUARD GROUP INC

CIK 102909

Shares

4.37M

Value

580.16M

Filed

Dec 31, 2025

5

VANGUARD PORTFOLIO MANAGEMENT LLC

CIK 2100121

Shares

2.70M

Value

370.66M

Filed

Jun 30, 2026

6

VANGUARD CAPITAL MANAGEMENT LLC

CIK 2100119

Shares

1.59M

Value

218.65M

Filed

Jun 30, 2026

7

STATE STREET CORP

CIK 93751

Shares

1.46M

Value

200.21M

Filed

Jun 30, 2026

8

LEGAL & GENERAL GROUP PLC

CIK 764068

Shares

1.44M

Value

197.62M

Filed

Jun 30, 2026

9

GEODE CAPITAL MANAGEMENT, LLC

CIK 1214717

Shares

1.41M

Value

193.83M

Filed

Jun 30, 2026

10

AQR CAPITAL MANAGEMENT LLC

CIK 1167557

Shares

1.39M

Value

190.60M

Filed

Jun 30, 2026

11

FIRST TRUST ADVISORS LP

CIK 1125816

Shares

1.13M

Value

155.45M

Filed

Jun 30, 2026

12

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

CIK 1164508

Shares

985.35K

Value

135.48M

Filed

Jun 30, 2026

13

BOSTON TRUST WALDEN CORP

CIK 1534866

Shares

984.89K

Value

135.41M

Filed

Jun 30, 2026

14

PENSERRA CAPITAL MANAGEMENT LLC

CIK 1593324

Shares

780.07K

Value

107.25K

Filed

Jun 30, 2026

15

MILLENNIUM MANAGEMENT LLC

CIK 1273087

Shares

762.71K

Value

104.86M

Filed

Jun 30, 2026

16

DIMENSIONAL FUND ADVISORS LP

CIK 354204

Shares

719.25K

Value

98.86M

Filed

Jun 30, 2026

17

MORGAN STANLEY

CIK 895421

Shares

620.71K

Value

85.34M

Filed

Jun 30, 2026

18

FULLER & THALER ASSET MANAGEMENT, INC.

CIK 1082327

Shares

591.36K

Value

78.59M

Filed

Dec 31, 2025

19

MIRAE ASSET GLOBAL ETFS HOLDINGS LTD.

CIK 1705339

Shares

553.74K

Value

76.06M

Filed

Jun 30, 2026

20

RWA WEALTH PARTNERS, LLC

CIK 1544576

Shares

548.76K

Value

75.45M

Filed

Jun 30, 2026

Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.