Company · Ownership research

QUALYS, INC. QLYS

CIK 0001107843 · CUSIP 74758T303

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 74758T303 (QLYS), not CUSIP 74758T903 (QLYS), and does not merge CUSIPs.

This page lists the top 20 of 430 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$724.89M 5,477,931 shares	0.01%	-145.89K(-2.60%)Reduced	SEC filing ↗ Nov 12, 2025	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$582.49M 4,401,798 shares	0.01%	+123.96K(+2.90%)Added	SEC filing ↗ Nov 7, 2025	▾
03	STATE STREET CORP CIK 93751 · View history	$183.79M 1,388,851 shares	0.01%	-23.10K(-1.60%)Reduced	SEC filing ↗ Nov 14, 2025	▾
04	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$161.03M 1,207,125 shares	0.01%	+3.13K(+0.30%)Added	SEC filing ↗ Nov 12, 2025	▾
05	Boston Trust Walden Corp CIK 1534866 · View history	$151.69M 1,146,289 shares	1.11%	+8.43K(+0.70%)Added	SEC filing ↗ Oct 17, 2025	▾
06	FIRST TRUST ADVISORS LP CIK 1125816 · View history	$146.31M 1,105,663 shares	0.11%	-10.05K(-0.90%)Reduced	SEC filing ↗ Nov 12, 2025	▾
07	Legal & General Group Plc CIK 764068 · View history	$143.05M 1,081,015 shares	0.03%	+29.34K(+2.80%)Added	SEC filing ↗ Nov 13, 2025	▾
08	NEUBERGER BERMAN GROUP LLC CIK 1465109 · View history	$138.89M 1,049,573 shares	0.10%	-25.00K(-2.30%)Reduced	SEC filing ↗ Nov 12, 2025	▾
09	AQR CAPITAL MANAGEMENT LLC CIK 1167557 · View history	$133.76M 1,010,769 shares	0.09%	-1.33K(-0.10%)Reduced	SEC filing ↗ Nov 14, 2025	▾
10	Fundsmith LLP CIK 1569205 · View history	$115.24M 870,859 shares	0.58%	+152.26K(+21.20%)Added	SEC filing ↗ Nov 14, 2025	▾
11	MORGAN STANLEY CIK 895421 · Amended · View history	$96.81M 731,570 shares	0.01%	-212.53K(-22.50%)Reduced	SEC filing ↗ May 27, 2026	▾
12	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$92.08M 695,732 shares	0.02%	+14.38K(+2.10%)Added	SEC filing ↗ Nov 12, 2025	▾
13	RWA WEALTH PARTNERS, LLC CIK 1544576 · View history	$80.82M 610,746 shares	0.92%	+610.75KNew	SEC filing ↗ Nov 10, 2025	▾
14	NORTHERN TRUST CORP CIK 73124 · View history	$72.21M 545,655 shares	0.01%	+4.38K(+0.80%)Added	SEC filing ↗ Nov 14, 2025	▾
15	JPMORGAN CHASE & CO CIK 19617 · Amended · View history	$70.24M 530,822 shares	0.00%	+8.95K(+1.70%)Added	SEC filing ↗ Nov 26, 2025	▾
16	Penserra Capital Management LLC CIK 1593324 · View history	$68.26M 515,840 shares	0.82%	-29.54K(-5.40%)Reduced	SEC filing ↗ Nov 4, 2025	▾
17	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. CIK 1705339 · View history	$66.43M 501,877 shares	0.11%	-4.92K(-1.00%)Reduced	SEC filing ↗ Nov 14, 2025	▾
18	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$62.46M 471,981 shares	0.01%	+2.28K(+0.50%)Added	SEC filing ↗ Nov 10, 2025	▾
19	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$60.30M 455,700 shares	0.08%	+95.30K(+26.40%)Added	SEC filing ↗ Nov 13, 2025	▾
20	LONDON CO OF VIRGINIA CIK 1259887 · View history	$60.28M 455,554 shares	0.33%	-14.42K(-3.10%)Reduced	SEC filing ↗ Nov 14, 2025	▾

Showing 20 / 430 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

430

Cancelled or null records excluded

Disclosed shares

35,397,032

Not deduplicated across managers

Disclosed value

$4.69B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

QUALYS, INC. · Q3 2025

Explore all 430 reporting institutions.

This page includes 20 of 430 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.