QLYS

QUALYS INC
USCUSIP 74758T303
Institutional Owners
169
+22 QoQ
13F Value Held
$899.7M
Insider Net · 180d
-$115K
0↑ 1↓
Recent Filings
1
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)69 adding · 24 trimming
Insider net (180d)−$115K
Price history not yet available for QLYS.

Top institutional holders

169 13F filers
#FundPosition valueSharesLast moveAs of
1VANGUARD PORTFOLIO MANAGEMENT LLC
$222.9M
2.54MNewQ1 2026
2VANGUARD CAPITAL MANAGEMENT LLC
$139.2M
1.58MNewQ1 2026
3STATE STREET CORP
$122.0M
1.39MAddedQ1 2026
4RWA WEALTH PARTNERS, LLC
$48.2M
548.8KReducedQ1 2026
5LONDON CO OF VIRGINIA
$41.0M
466.3KAddedQ1 2026
6ELLIOTT MANAGEMENT CORP
$39.1M
1.31MNewQ2 2016
7Clark Capital Management Group, Inc.
$33.4M
380.5KAddedQ1 2026
8Alyeska Investment Group, L.P.
$26.8M
304.7KNewQ1 2026
9VANGUARD FIDUCIARY TRUST CO
$22.0M
250.4KNewQ1 2026
10Portolan Capital Management, LLC
$21.0M
239.0KAddedQ1 2026
11Point72 Asset Management, L.P.
$19.8M
138.3KAddedQ2 2025
12Trexquant Investment LP
$13.7M
156.0KAddedQ1 2026
13OBERWEIS ASSET MANAGEMENT INC/
$10.4M
118.9KAddedQ1 2026
14Gotham Asset Management, LLC
$9.7M
110.6KAddedQ1 2026
15AMERICAN CAPITAL MANAGEMENT INC
$7.4M
83.8KReducedQ1 2026
16TEACHER RETIREMENT SYSTEM OF TEXAS
$6.7M
75.7KAddedQ1 2026
17Vontobel Holding Ltd.
$6.6M
75.3KReducedQ1 2026
18RENAISSANCE GROUP LLC
$4.2M
47.8KAddedQ1 2026
19NICHOLAS COMPANY, INC.
$4.2M
47.3KReducedQ1 2026
20Y-Intercept (Hong Kong) Ltd
$4.1M
47.2KAddedQ1 2026
21PUBLIC SECTOR PENSION INVESTMENT BOARD
$4.1M
47.1KNewQ1 2026
22SEGALL BRYANT & HAMILL, LLC
$3.4M
35.5KNewQ1 2026
23Quadrature Capital Ltd
$3.4M
38.4KNewQ1 2026
24Tandem Investment Advisors, Inc.
$3.3M
37.6KReducedQ1 2026
25MetLife Investment Management, LLC
$3.2M
36.9KReducedQ1 2026

Fund activity — latest quarter

Opened (NEW)
21
funds
Added
48
funds
Reduced
24
funds
Exited
0
funds

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$115K
1 insiders
Net
-$115K
4 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Jun 2, 2026Kim Joo MiCHIEF FINANCIAL OFFICERSell (S)306$34K
Jun 2, 2026Kim Joo MiCHIEF FINANCIAL OFFICERSell (S)153$17K
Jun 2, 2026Kim Joo MiCHIEF FINANCIAL OFFICERSell (S)153$17K
Jun 2, 2026Kim Joo MiCHIEF FINANCIAL OFFICERSell (S)419$47K

Institutional ownership over time

160 funds+158 since Q2 2022
080160Q2 2022Q1 2023Q4 2023Q3 2024Q2 2025Q1 2026
funds holding aggregate valuelatest $667M

Funds that own QLYS also own

CompanyCo-held byCombined value
Microsoft CorporationMSFT160 funds$172.8B
Apple, Inc.AAPL157 funds$222.8B
Amazon.com, Inc.AMZN154 funds$126.4B
Jpmorgan Chase & Co - USJPM154 funds$56.9B
Alphabet, Inc. Cl AGOOGL153 funds$103.5B
Meta Platforms, Inc.META152 funds$77.5B
Nvidia Corp. (US)NVDA151 funds$255.4B
Costco Wholesale CorporationCOST151 funds$28.5B
Broadcom LtdAVGO150 funds$89.3B
Mastercard, Inc.MA150 funds$28.5B
Lilly Eli & CoLLY149 funds$48.2B
Visa Inc. Class AV149 funds$37.0B

Ranked by how many of QLYS's institutional holders also hold each name — a cross-fund conviction signal. Via the MCP server (ticker.co_held).

Recent filings

1 shown

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for QLYS. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.