QLYS

QUALYS INC

QLYS·74758T303·US·Common Stock·Technology - Software - Infrastructure-13D/G

QLYS (QUALYS INC) is held by 186 institutional investors as of Q1 2026. Largest holders: BlackRock, Inc. ($470.9M), VANGUARD PORTFOLIO MANAGEMENT LLC ($222.9M), VANGUARD CAPITAL MANAGEMENT LLC ($139.2M). Net institutional sentiment: Mixed. In Q1 2026, 2 members of Congress and 112 funds bought QLYS.

186
Holders
(19 Elite)
$2.9B
Total Value
57% (198)
Consensus
112 buying - 86 selling
13F: Insider & Congress:
QLYS

Smart Money Verdict

View all
Held by 186 funds
19 elite

Who's Trading

InsiderPWPfeiffer WendySell $79KJul 20, 2026
InsiderTSThakar Sumedh SSell $15KJul 14, 2026
InsiderTSThakar Sumedh SSell $15KJul 14, 2026
InsiderTSThakar Sumedh SSell $16KJul 14, 2026
ActivistVAVanguard Capital Management5.2%Apr 30, 2026
ActivistVPVanguard Portfolio Management7.2%Apr 29, 2026
CongressLisa McClainLisa McClainSale $1,001 - $15,000Oct 31, 2025
CongressLisa McClainLisa McClainSale $1,001 - $15,000Oct 30, 2025
CongressLisa McClainLisa McClainBuy $1,001 - $15,000Oct 30, 2025
CongressLisa McClainLisa McClainBuy $1,001 - $15,000Sep 11, 2025

Top Holders

Fund
Action
Shares
Value
Weight
Est. P&L
Conviction
Decreased
5.4M(-0.2%)$470.9M0.0%+30.19%
0
New
2.5M$222.9M0.0%+86.65%
42
New
1.6M$139.2M0.0%+86.65%
42
Increased
1.4M(+3.0%)$122M0.0%-3.68%
31
Increased
1.3M(+5.2%)$116.1M0.0%+58.43%
32
Increased
1M(+64.0%)$90.8M0.0%+49.69%
43
Decreased
1M(-11.0%)$90.4M0.0%+53.20%
0
Decreased
1M(-8.5%)$88.8M0.7%+40.08%
0
Decreased
996,064(-27.4%)$87.5M0.1%+42.51%
0
Increased
832,796(+127.0%)$73.2M0.0%+57.63%
48
Increased
763,099(+6.4%)$67M0.0%+42.70%
32
Increased
760,842(+55.7%)$66.9M0.0%+45.96%
42
Decreased
646,426(-6.6%)$56.8M0.0%+28.39%
0
Decreased
548,760(-6.8%)$48.2M0.5%+33.17%
0
Decreased
510,546(-0.4%)$44.9M0.0%+87.86%
0
Increased
502,419(+6.8%)$44.1M0.0%+65.12%
31
Increased
497,600(+3.6%)$43.7M0.1%+22.40%
30
Decreased
470,116(-42.3%)$41.3M0.0%+134.66%
0
Increased
466,342(+19.8%)$41M0.3%+47.66%
41
Increased
438,572(+3.7%)$38.5M0.1%+30.41%
30

Showing 1-20 of 205

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QLYSQLYSQUALYS INC

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Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer

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