$QLYS

$225.15 +$8.45 (3.9%) Close

$QLYS Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 34.6M shares outstanding

Who owns QLYS?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 54.5%

BlackRock, Inc. 16.7% · Vanguard Portfolio Management LLC 7.8%

Institutional ownership

100.0%

0 pts vs last qtr

Institutional holders

431

+11 vs last qtr

Net shares bought

−143.4K

by institutions in Q2 2026

New / sold out

91 / 80

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Millennium Management LLC +527.3K
Legal & General Group Plc +407.8K

Biggest sellers in Q2 2026

Jpmorgan Chase & Co −469.2K
Neuberger Berman Group LLC −466.0K

Who is planning to sell?

Notices of proposed sale, last 12 months

$22.4M

22 notices from 7 people

Shares covered

168.3K

0.49% of the company

Arranged in advance

100%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Sumedh Thakar Director 10b5-1 $13.6M
Joo Mi Kim Officer 10b5-1 $6.17M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2016–FY2025

−5.0%

−0.57% a year

Each share's claim on the business

+5.3%

grew without buying or selling a share

Spent on buybacks vs paid in stock

$1.24B vs $496M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years75% 3–5 years6% 1–3 years10% Under 1 year9%

Quarterly turnover

15.6%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting QLYS on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	5.8M	16.66%	+402.1K (+7.5%)	≤2021	0.0%
Shares held by quarter Peak holding5.9M (Q4'24) Change over 8 quarters+18.7K Share of the company16.660% BlackRock, Inc.'s full portfolio →
VP Vanguard Portfolio Management LLC	2.7M	7.79%	+158.8K (+6.3%)	≤2021	0.0%
Shares held by quarter Peak holding2.7M (Q2'26) Change over 8 quarters+2.7M Share of the company7.790% Vanguard Portfolio Management LLC's full portfolio →

BlackRock, Inc.

5.8M

% of company

16.66%

Change vs last qtr

+402.1K (+7.5%)

Held since

≤2021

Vanguard Portfolio Management LLC

2.7M

% of company

7.79%

Change vs last qtr

+158.8K (+6.3%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Qualys, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting QLYS on Form N-PORT; together they hold 49.3% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
IC iShares Core S&P Mid-Cap ETF iShares Trust	$166M	1.2M	3.49%	0.13%	June 30, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$154M	1.1M	3.24%	0.01%	June 30, 2026

iShares Core S&P Mid-Cap ETF

iShares Trust

Position value

$166M

% of company

3.49%

% of the fund

0.13%

As of

June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$154M

% of company

3.24%

% of the fund

0.01%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Qualys, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
TS Thakar Sumedh S Insider	177.1K	0.51%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.510% Thakar Sumedh S's insider activity →
KJ Kim Joo Mi Insider	74.7K	0.22%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.220% Kim Joo Mi's insider activity →

Thakar Sumedh S

Insider

177.1K

% of company

0.51%

Change vs last qtr

—

Held since

—

Kim Joo Mi

Insider

74.7K

% of company

0.22%

Change vs last qtr

—

Held since

—

7 more holders behind a free account

See every insider and 5%+ holder of Qualys, Inc..

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