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Equibles

QLYS

Qualys, Inc.

Company with tickers: QLYS

CIK
1107843
CUSIP
74758T303
Shares Outstanding
35,217,007
13F Activity (30d)
22 filings 18 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 420
Total Value: $3,211,003,142
Total Shares: 36,550,978
Showing 1–100 of 435 holdings by value · page 1 of 5

Institutional Ownership Trend

25 quarters

Superinvestors Holding QLYS

All superinvestors →
Terry Smith $19,860,864 Joel Greenblatt $9,716,824 Ray Dalio $897,739

Holder Concentration

Across 420 13F filers · Δ vs Dec 31, 2025
Top Holder
15.5%
Jun 2023 → Mar 2026 · range 13.3% – 16.3%
+0.6 pts
Top 5
30.8%
Jun 2023 → Mar 2026 · range 30.8% – 39.4%
−7.0 pts
Top 10
44.2%
Jun 2023 → Mar 2026 · range 44.2% – 53.5%
−6.1 pts
HHI
382
Jun 2023 → Mar 2026 · range 382 – 531
Broadly held−96

Quarterly Activity

vs Dec 31, 2025
New
61
Increased
186
Decreased
120
Sold Out
90
Unchanged
53
Holder count: -29
Institutional value: -33.3%
Shares held: +0.9%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP +465,952 832,796
Mega AQR CAPITAL MANAGEMENT LLC +405,457 1,038,928
Mega JPMORGAN CHASE & CO +272,147 760,842
Mid Portolan Capital Management, LLC +187,173 239,028
Mid Penserra Capital Management LLC +185,429 732,504

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Large Fundsmith LLP −421,729 226,077
Mega FIRST TRUST ADVISORS LP −376,523 996,064
Mega NEUBERGER BERMAN GROUP LLC −344,961 470,116
Mid AMERICAN CAPITAL MANAGEMENT INC −320,367 83,752
Mega Legal & General Group Plc −126,825 1,029,587

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 3,443,282 $302,492,323
Large Alyeska Investment Group, L.P. 304,677 $26,765,874
Mega VANGUARD FIDUCIARY TRUST CO 250,359 $21,994,038
Mid SYSTEMATIC FINANCIAL MANAGEMENT LP 114,026 $10,017,183
Small WINMILL & CO. INC 88,641 $7,787,111

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 4,365,407 $580,162,588
Large FULLER & THALER ASSET MANAGEMENT, INC. 591,358 $78,591,478
Mega NORGES BANK 219,395 $29,157,595
Small NORRIS PERNE & FRENCH LLP/MI 112,826 $14,994,575
Large TWO SIGMA ADVISERS, LP 82,800 $11,004,120
Filter: New 61 Increased 186 Reduced 120 Sold out 90 Unchanged 53
Showing 100 of 435
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $470,928,349 14.67% 5,360,596
Mega VANGUARD CAPITAL MANAGEMENT LLC $163,284,686 5.09% 1,858,676
Mega VANGUARD CAPITAL MANAGEMENT LLC $139,207,637 4.34% 1,584,606
Mega STATE STREET CORP $121,999,052 3.80% 1,388,720
Mega GEODE CAPITAL MANAGEMENT, LLC $116,041,855 3.61% 1,320,909
Mega AQR CAPITAL MANAGEMENT LLC $91,269,822 2.84% 1,038,928
Mega Legal & General Group Plc $90,449,217 2.82% 1,029,587
Large Boston Trust Walden Corp $88,761,531 2.76% 1,010,376
Mega FIRST TRUST ADVISORS LP $87,504,222 2.73% 996,064
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $73,161,128 2.28% 832,796
Mega DIMENSIONAL FUND ADVISORS LP $67,038,245 2.09% 763,099
Mega JPMORGAN CHASE & CO $66,839,966 2.08% 760,842
Mid Penserra Capital Management LLC $64,350,476 2.00% 732,504
Mega MORGAN STANLEY $56,788,518 1.77% 646,426
Mid RWA WEALTH PARTNERS, LLC $48,208,566 1.50% 548,760
Mega NORTHERN TRUST CORP Bank $44,851,463 1.40% 510,546
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $44,137,509 1.37% 502,419
Large RENAISSANCE TECHNOLOGIES LLC $43,714,160 1.36% 497,600
Mega NEUBERGER BERMAN GROUP LLC $41,299,690 1.29% 470,116
Small CDAM (UK) Ltd $41,201,737 1.28% 469,001
Large LONDON CO OF VIRGINIA $40,968,144 1.28% 466,342
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $38,528,549 1.20% 438,572
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $36,597,164 1.14% 416,587
Mega Invesco Ltd. $33,455,033 1.04% 380,820
Large Clark Capital Management Group, Inc. $33,423,323 1.04% 380,459
Mega GOLDMAN SACHS GROUP INC $28,479,212 0.89% 324,180
Mega Bank of New York Mellon Corp Bank $27,961,507 0.87% 318,287
Large Alyeska Investment Group, L.P. $26,765,874 0.83% 304,677
Large VOYA INVESTMENT MANAGEMENT LLC $26,122,636 0.81% 297,355
Large TUDOR INVESTMENT CORP ET AL $22,040,247 0.69% 250,885
Mega VANGUARD FIDUCIARY TRUST CO Bank $21,994,038 0.68% 250,359
Large FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ $21,424,155 0.67% 243,872
Mid Portolan Capital Management, LLC $20,998,609 0.65% 239,028
Mega MILLENNIUM MANAGEMENT LLC $20,678,308 0.64% 235,382
Large Fundsmith LLP $19,860,864 0.62% 226,077
Mega BNP PARIBAS ARBITRAGE, SA $18,327,618 0.57% 208,624
Mega ENVESTNET ASSET MANAGEMENT INC $18,244,160 0.57% 207,674
Mega BANK OF AMERICA CORP /DE/ Bank $18,153,761 0.57% 206,645
Mega CITADEL ADVISORS LLC $17,880,110 0.56% 203,530
Mega UBS Group AG $17,061,962 0.53% 194,217
Large CANADA LIFE ASSURANCE Co Insurance $16,579,579 0.52% 188,726
Mega AMERIPRISE FINANCIAL INC $16,161,938 0.50% 183,972
Large ACADIAN ASSET MANAGEMENT LLC $15,998,099 0.50% 182,107
Large Retirement Systems of Alabama Pension $15,955,844 0.50% 181,626
Large FEDERATED HERMES, INC. $15,835,840 0.49% 180,260
Mega NORDEA INVESTMENT MANAGEMENT AB $14,761,521 0.46% 168,031
Large Trexquant Investment LP $13,706,444 0.43% 156,021
Mega TWO SIGMA INVESTMENTS, LP $13,619,912 0.42% 155,036
Large MARSHALL WACE, LLP $12,606,562 0.39% 143,501
Mega PRINCIPAL FINANCIAL GROUP INC $12,326,848 0.38% 140,317
Mega BARCLAYS PLC $11,906,045 0.37% 135,527
Mega JANUS HENDERSON GROUP PLC $11,085,702 0.35% 126,189
Mega D. E. Shaw & Co., Inc. $10,991,089 0.34% 125,112
Mid OBERWEIS ASSET MANAGEMENT INC/ $10,445,365 0.33% 118,900
Mega Fisher Asset Management, LLC $10,206,588 0.32% 116,182
Mid SYSTEMATIC FINANCIAL MANAGEMENT LP $10,017,183 0.31% 114,026
Mega PRICE T ROWE ASSOCIATES INC /MD/ $9,986,524 0.31% 113,677
Large Gotham Asset Management, LLC $9,716,824 0.30% 110,607
Mega RHUMBLINE ADVISERS $9,123,398 0.28% 103,852
Mid Tributary Capital Management, LLC $9,062,342 0.28% 103,157
Mid CULLINAN ASSOCIATES INC $9,030,980 0.28% 102,800
Mega DEUTSCHE BANK AG\ Bank $8,902,717 0.28% 101,340
Large Vident Advisory, LLC $8,546,310 0.27% 97,283
Mega ALLIANCEBERNSTEIN L.P. $8,480,072 0.26% 96,529
Mega Nuveen, LLC $8,348,824 0.26% 95,035
Large Janney Montgomery Scott LLC $7,880,145 0.25% 89,700
Small WINMILL & CO. INC $7,787,111 0.24% 88,641
Mid AMERICAN CAPITAL MANAGEMENT INC $7,357,613 0.23% 83,752
Large TUDOR INVESTMENT CORP ET AL $7,326,690 0.23% 83,400
Mega CITIGROUP INC $7,161,882 0.22% 81,524
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $7,045,570 0.22% 80,200
Large Robeco Institutional Asset Management B.V. $6,729,397 0.21% 76,601
Mega California Public Employees Retirement System Pension $6,666,058 0.21% 75,880
Large TEACHER RETIREMENT SYSTEM OF TEXAS Pension $6,650,859 0.21% 75,707
Large Vontobel Holding Ltd. $6,610,888 0.21% 75,252
Large Man Group plc $6,442,304 0.20% 73,333
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $6,413,050 0.20% 73,000
Mega Swiss National Bank Bank $6,254,920 0.19% 71,200
Mega AMERICAN CENTURY COMPANIES INC $6,033,274 0.19% 68,677
Mega VICTORY CAPITAL MANAGEMENT INC $5,838,071 0.18% 66,455
Mid BI Asset Management Fondsmaeglerselskab A/S $5,532,178 0.17% 62,973
Large SG Americas Securities, LLC Broker-Dealer $5,505,647 0.17% 62,671
Small Park State Asset Management $5,106,105 0.16% 58,123
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $5,054,625 0.16% 57,537
Large Qube Research & Technologies Ltd $4,849,320 0.15% 55,200
Small HERALD INVESTMENT MANAGEMENT Ltd $4,831,750 0.15% 55,000
Mega LPL Financial LLC $4,758,043 0.15% 54,161
Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. $4,413,407 0.14% 50,238
Mega WELLS FARGO & COMPANY/MN $4,290,066 0.13% 48,834
Mega JANE STREET GROUP, LLC $4,269,510 0.13% 48,600
Large Russell Investments Group, Ltd. $4,207,485 0.13% 47,894
Mid RENAISSANCE GROUP LLC $4,201,601 0.13% 47,827
Mid NICHOLAS COMPANY, INC. $4,157,589 0.13% 47,326
Large SEI INVESTMENTS CO $4,154,865 0.13% 47,295
Mid Y-Intercept (Hong Kong) Ltd $4,145,992 0.13% 47,194
Large Public Sector Pension Investment Board Pension $4,135,099 0.13% 47,070
Large Asset Management One Co., Ltd. $3,976,266 0.12% 45,262
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $3,717,548 0.12% 42,317
Small HUSSMAN STRATEGIC ADVISORS, INC. $3,689,700 0.11% 42,000
Mega VAN ECK ASSOCIATES CORP $3,601,850 0.11% 41,000

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