Security Snapshot

QUALYS, INC. - Common Stock (QLYS) Institutional Ownership

CUSIP: 74758T303

13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026

Latest Period

Q4 2025

Institutions Reporting

445

Shares (Excl. Options)

36,059,563

Price

$132.90

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Type / Class
Equity / Common Stock
Symbol
QLYS on Nasdaq
Shares outstanding
35,743,769
Price per share
$87.36
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
36,059,563
Total reported value
$4,794,927,826
% of total 13F portfolios
0%
Share change
+644,378
Value change
+$85,981,205
Number of holders
445
Price from insider filings
$87.36
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Quick Takeaways

  • QLYS - QUALYS, INC. - Common Stock is tracked under CUSIP 74758T303.
  • 445 institutions reported positions in Q4 2025.
  • 3 significant owners is listed from Schedule 13D/13G reporting.

What Changed

  • Holder count moved from 445 to 151 between Q4 2025 and Q1 2026.
  • Reported value moved from $4,794,927,826 to $444,595,523.

Why This Matters

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Source Evidence

Source: SEC Form 13F

Latest holder context comes from 445 institutions filings for Q4 2025.

Open SEC Evidence

Investment Quick Answers

What is CUSIP 74758T303?
CUSIP 74758T303 identifies QLYS - QUALYS, INC. - Common Stock in SEC 13F datasets.

Where can I see the latest institutional holders?
Review the Q4 2025 holders report and the ownership history table below.

Significant Owners of QUALYS, INC. - Common Stock (QLYS) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BlackRock, Inc. 14% -12% $645,205,538 -$97,398,249 5,090,379 -13% BlackRock, Inc. 31 Mar 2025
VANGUARD PORTFOLIO MANAGEMENT LLC 7.2% $225,640,090 2,568,470 Vanguard Portfolio Management 31 Mar 2026
VANGUARD CAPITAL MANAGEMENT LLC 5.2% $163,284,687 1,858,676 Vanguard Capital Management 31 Mar 2026

As of 31 Dec 2025, 445 institutional investors reported holding 36,059,563 shares of QUALYS, INC. - Common Stock (QLYS). This represents 101% of the company’s total 35,743,769 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of QUALYS, INC. - Common Stock (QLYS) together control 72% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 15% 5,373,096 -1.9% 0.01% $714,084,504
VANGUARD GROUP INC 12% 4,365,407 -0.83% 0.01% $580,162,589
FIRST TRUST ADVISORS LP 3.8% 1,372,587 +24% 0.13% $182,416,812
STATE STREET CORP 3.8% 1,348,093 -2.9% 0.01% $179,161,560
GEODE CAPITAL MANAGEMENT, LLC 3.5% 1,256,002 +4% 0.01% $168,379,771
Legal & General Group Plc 3.2% 1,156,412 +7% 0.03% $153,687,154
Boston Trust Walden Corp 3.1% 1,103,888 -3.7% 1.1% $146,706,715
NEUBERGER BERMAN GROUP LLC 2.3% 815,077 -22% 0.08% $108,323,734
DIMENSIONAL FUND ADVISORS LP 2% 717,381 +3.1% 0.02% $95,343,922
MORGAN STANLEY 1.9% 691,800 -5.4% 0.01% $91,940,408
Fundsmith LLP 1.8% 647,806 -26% 0.5% $86,093,417
AQR CAPITAL MANAGEMENT LLC 1.8% 633,471 -37% 0.04% $84,188,260
FULLER & THALER ASSET MANAGEMENT, INC. 1.7% 591,358 0.27% $78,591,438
RWA WEALTH PARTNERS, LLC 1.6% 588,748 -3.6% 0.86% $78,244,609
Penserra Capital Management LLC 1.5% 547,075 +6.1% 0.86% $72,706,000
NORTHERN TRUST CORP 1.4% 512,649 -6% 0.01% $68,131,052
JPMORGAN CHASE & CO 1.4% 488,695 -7.9% 0% $64,947,565
RENAISSANCE TECHNOLOGIES LLC 1.3% 480,300 +5.4% 0.1% $63,831,870
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.3% 470,311 -0.35% 0.01% $62,504,339
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 1.2% 430,885 -2.7% 0.01% $57,264,617
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 1.2% 422,815 -16% 0.08% $56,197,402
AMERICAN CAPITAL MANAGEMENT INC 1.1% 404,119 -2.1% 2.4% $53,707,415
LONDON CO OF VIRGINIA 1.1% 389,254 -15% 0.3% $51,733,292
CDAM (UK) Ltd 1.1% 386,650 +9.3% 9.3% $51,385,785
Invesco Ltd. 1.1% 376,406 -4.9% 0.01% $50,024,357

Institutional Holders of QUALYS, INC. - Common Stock (QLYS) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q1 5,061,470 $444,595,523 +$1,126,632 $87.85 151
2025 Q4 36,059,563 $4,794,927,826 +$85,981,205 $132.90 445
2025 Q3 35,395,618 $4,686,653,183 +$31,809,278 $132.33 427
2025 Q2 35,060,421 $5,009,847,235 +$31,496,597 $142.87 434
2025 Q1 34,877,527 $4,392,610,864 -$153,771,660 $125.93 426
2024 Q4 35,923,708 $5,038,073,250 -$69,022,429 $140.22 446
2024 Q3 36,291,989 $4,662,354,017 -$137,507,803 $128.46 430
2024 Q2 36,892,891 $5,261,299,695 +$23,634,556 $142.60 463
2024 Q1 36,553,396 $6,099,074,845 -$53,320,314 $166.87 450
2023 Q4 36,645,215 $7,192,338,851 +$161,334,962 $196.28 461
2023 Q3 35,875,240 $5,473,810,537 +$72,482,649 $152.55 406
2023 Q2 35,435,898 $4,578,512,528 +$48,445,431 $129.17 385
2023 Q1 35,084,484 $4,560,890,965 -$16,325,824 $130.02 386
2022 Q4 35,723,133 $4,009,230,075 +$45,193,732 $112.23 388
2022 Q3 35,739,539 $4,982,448,661 +$96,677,699 $139.39 386
2022 Q2 34,916,478 $4,405,039,990 +$42,919,789 $126.14 355
2022 Q1 34,608,246 $4,928,738,616 -$109,560,247 $142.41 351
2021 Q4 35,326,508 $4,846,018,961 +$115,749,103 $137.22 351
2021 Q3 34,354,671 $3,821,207,360 +$19,778,100 $111.29 330
2021 Q2 34,154,155 $3,438,989,691 -$243,450,861 $100.69 321
2021 Q1 36,489,522 $3,821,823,048 -$25,158,182 $104.78 309
2020 Q4 36,579,802 $4,456,274,505 +$14,840,294 $121.87 342
2020 Q3 36,223,803 $3,551,177,651 -$7,475,122 $98.01 321
2020 Q2 36,165,680 $3,759,482,249 +$43,399,885 $104.02 353
2020 Q1 35,711,834 $3,105,311,896 +$41,822,068 $86.99 296
2019 Q4 35,223,817 $2,937,984,229 +$89,507,219 $83.37 295
2019 Q3 34,031,407 $2,572,249,714 +$20,195,898 $75.57 255
2019 Q2 33,665,993 $2,930,499,111 +$11,298,982 $87.08 274
2019 Q1 33,770,153 $2,793,839,170 +$42,987,100 $82.74 261
2018 Q4 33,287,560 $2,489,098,265 +$7,201,813 $74.74 269
2018 Q3 33,090,290 $2,947,710,441 +$57,582,873 $89.10 268
2018 Q2 31,745,615 $2,676,863,151 +$105,787,488 $84.30 260
2018 Q1 31,222,393 $2,271,098,495 +$114,377,614 $72.75 239
2017 Q4 30,924,310 $1,837,069,551 +$88,996,663 $59.35 211
2017 Q3 29,418,185 $1,524,166,195 +$57,402,495 $51.80 181
2017 Q2 28,483,242 $1,162,658,676 +$20,230,055 $40.80 165
2017 Q1 28,189,769 $1,068,445,469 +$206,257,947 $37.90 165
2016 Q4 25,932,707 $826,432,253 -$7,544,328 $31.65 173
2016 Q3 25,765,604 $983,560,493 +$44,173,267 $38.19 165
2016 Q2 24,873,742 $741,561,734 +$44,993,389 $29.81 149
2016 Q1 23,703,890 $599,936,811 -$2,228,067 $25.31 148
2015 Q4 23,269,495 $769,969,310 -$9,832,307 $33.09 146
2015 Q3 22,520,411 $640,919,878 +$35,370,765 $28.46 146
2015 Q2 20,604,907 $830,947,233 +$11,362,200 $40.35 148
2015 Q1 19,940,206 $927,313,365 +$47,393,808 $46.48 152
2014 Q4 18,961,004 $715,698,421 +$33,791,758 $37.75 128
2014 Q3 18,429,099 $490,206,012 +$38,253,430 $26.60 112
2014 Q2 17,004,968 $436,127,264 +$21,866,032 $25.67 96
2014 Q1 15,803,492 $401,876,113 +$63,399,134 $25.43 85
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