QUALYS, INC. (QLYS) — Institutional Holders, Q2 2026

435 institutional investment managers reported a QLYS position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $5.0B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← QLYS stock profile

QLYS in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

159

Trimmed

143

Sold out

Biggest buyers

MILLENNIUM MANAGEMENTAdded · +527,327 sh+$72.5M
Legal & General Group PlcAdded · +407,786 sh+$56.1M
BlackRockAdded · +402,125 sh+$55.3M
ACADIAN ASSET MANAGEMENTAdded · +360,172 sh+$49.5M
AQR CAPITAL MANAGEMENTAdded · +355,843 sh+$48.9M

Biggest sellers

JPMORGAN CHASETrimmed · -469,161 sh-$64.5M
Neuberger Berman GroupTrimmed · -466,029 sh-$64.1M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMETrimmed · -341,010 sh-$46.9M
Alyeska Investment Group, L.P.Trimmed · -271,053 sh-$37.3M
CDAM (UK) LtdTrimmed · -249,139 sh-$34.3M

QLYS 13F holders ranked 1–100 of 435

Institutional investors reporting a position in QUALYS, INC. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	BlackRock#1 · 5,762,721 sh	5,762,721	$792.3M	0.01%	+7.5%
2	VANGUARD PORTFOLIO MANAGEMENT#2 · 2,695,941 sh	2,695,941	$370.7M	0.02%	+6.3%
3	VANGUARD CAPITAL MANAGEMENT#3 · 1,590,332 sh	1,590,332	$218.7M	<0.01%	+0.4%
4	STATE STREET#4 · 1,456,158 sh	1,456,158	$200.2M	<0.01%	+4.9%
5	Legal & General Group Plc#5 · 1,437,373 sh	1,437,373	$197.6M	0.04%	+39.6%
6	GEODE CAPITAL MANAGEMENT#6 · 1,409,583 sh	1,409,583	$193.8M	0.01%	+6.7%
7	AQR CAPITAL MANAGEMENT#7 · 1,394,771 sh	1,394,771	$190.6M	0.07%	+34.3%
8	FIRST ADVISORS#8 · 1,130,656 sh	1,130,656	$155.5M	0.09%	+13.5%
9	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#9 · 985,345 sh	985,345	$135.5M	0.06%	+18.3%
10	Boston Walden#10 · 984,889 sh	984,889	$135.4M	1.03%	-2.5%
11	Penserra Capital Management#11 · 780,069 sh	780,069	$107.3M	0.82%	+6.5%
12	MILLENNIUM MANAGEMENT#12 · 762,709 sh	762,709	$104.9M	0.04%	+224.0%
13	DIMENSIONAL FUND ADVISORS#13 · 719,248 sh	719,248	$98.9M	0.02%	-5.7%
14	MORGAN STANLEY#14 · 620,705 sh	620,705	$85.3M	<0.01%	-4.0%
15	MIRAE ASSET GLOBAL ETFS Ltd.#15 · 553,737 sh	553,737	$76.1M	0.09%	+26.3%
16	RWA WEALTH PARTNERS#16 · 548,756 sh	548,756	$75.4M	0.72%	0.0%
17	Clark Capital Management Group#17 · 543,703 sh	543,703	$74.8M	0.41%	+42.9%
18	ACADIAN ASSET MANAGEMENT#18 · 542,279 sh	542,279	$74.5M	0.09%	+197.8%
19	Portolan Capital Management#19 · 529,807 sh	529,807	$72.8M	2.73%	+121.7%
20	VOYA INVESTMENT MANAGEMENT#20 · 521,489 sh	521,489	$71.7M	0.06%	+75.4%
21	NORTHERN#21 · 517,147 sh	517,147	$71.1M	<0.01%	+1.3%
22	CHARLES SCHWAB INVESTMENT MANAGEMENT#22 · 514,677 sh	514,677	$70.8M	<0.01%	+2.4%
23	LONDON OF VIRGINIA#23 · 428,317 sh	428,317	$58.9M	0.34%	-8.2%
24	Invesco Ltd.#24 · 423,064 sh	423,064	$58.2M	<0.01%	+11.1%
25	GOLDMAN SACHS GROUP#25 · 397,028 sh	397,028	$54.6M	<0.01%	+22.5%
26	CITADEL ADVISORS#26 · 378,139 sh	378,139	$52.0M	<0.01%	+85.8%
27	FORT WASHINGTON INVESTMENT ADVISORS#27 · 368,865 sh	368,865	$50.7M	—	+51.3%
28	Point72 Asset Management, L.P.#28 · 285,895 sh	285,895	$39.3M	0.04%	New
29	RENAISSANCE TECHNOLOGIES#29 · 284,100 sh	284,100	$39.1M	0.05%	-42.9%
30	Bank of New York Mellon#30 · 283,980 sh	283,980	$39.0M	<0.01%	-10.8%
31	JPMORGAN CHASE#31 · 291,681 sh	291,681	$37.6M	<0.01%	-61.7%
32	VANGUARD FIDUCIARY#32 · 253,640 sh	253,640	$34.9M	<0.01%	+1.3%
33	UBS Group AG#33 · 244,220 sh	244,220	$33.6M	<0.01%	+25.7%
34	CDAM (UK) Ltd#34 · 219,862 sh	219,862	$30.2M	7.80%	-53.1%
35	ENVESTNET ASSET MANAGEMENT#35 · 213,213 sh	213,213	$29.3M	<0.01%	+2.7%
36	Retirement Systems of Alabama#36 · 174,089 sh	174,089	$23.9M	0.07%	-4.1%
37	GREAT WEST LIFE ASSURANCE#37 · 173,779 sh	173,779	$23.9M	0.04%	-7.9%
38	BANK OF AMERICA#38 · 158,937 sh	158,937	$21.9M	<0.01%	-23.1%
39	PRINCIPAL FINANCIAL GROUP#39 · 148,346 sh	148,346	$20.4M	0.01%	+5.7%
40	WELLINGTON MANAGEMENT GROUP LLP#40 · 141,444 sh	141,444	$19.4M	<0.01%	New
41	BNP PARIBAS FINANCIAL MARKETS#41 · 137,450 sh	137,450	$18.9M	<0.01%	-34.1%
42	Jupiter Topco#42 · 134,922 sh	134,922	$18.5M	<0.01%	—
43	SYSTEMATIC FINANCIAL MANAGEMENT#43 · 126,828 sh	126,828	$17.4M	0.35%	+11.2%
44	Russell Investments Group, Ltd.#44 · 124,779 sh	124,779	$16.4M	0.01%	+160.5%
45	Fisher Asset Management#45 · 114,929 sh	114,929	$15.8M	<0.01%	-1.1%
46	Nuveen#46 · 112,516 sh	112,516	$15.5M	<0.01%	+18.4%
47	Tributary Capital Management#47 · 112,278 sh	112,278	$15.4M	1.27%	+8.8%
48	Vontobel Holding Ltd.#48 · 107,542 sh	107,542	$14.8M	—	+42.9%
49	RHUMBLINE ADVISERS#49 · 106,980 sh	106,980	$14.7M	0.01%	+3.0%
50	CULLINAN ASSOCIATES#50 · 102,800 sh	102,800	$14.1M	1.07%	0.0%
51	Pacer Advisors#51 · 100,778 sh	100,778	$13.9M	0.04%	New
52	Vident Advisory#52 · 98,934 sh	98,934	$13.6M	0.10%	+1.7%
53	DEUTSCHE BANK AG\#53 · 92,118 sh	92,118	$12.7M	<0.01%	-9.1%
54	WINMILL#54 · 88,641 sh	88,641	$12.2M	2.70%	0.0%
55	CITIGROUP#55 · 83,502 sh	83,502	$11.5M	<0.01%	+2.4%
56	Creative Planning#56 · 82,808 sh	82,808	$11.4M	<0.01%	+185.4%
57	CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM#57 · 81,973 sh	81,973	$11.3M	<0.01%	+8.0%
58	SCHRODER INVESTMENT MANAGEMENT GROUP#58 · 84,920 sh	84,920	$10.9M	<0.01%	New
59	FEDERATED HERMES#59 · 79,056 sh	79,056	$10.9M	0.02%	-56.1%
60	BI Asset Management Fondsmaeglerselskab A/S#60 · 79,003 sh	79,003	$10.9M	—	+25.5%
61	Jump Financial#61 · 76,923 sh	76,923	$10.6M	0.09%	+824.6%
62	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#62 · 75,577 sh	75,577	$10.4M	<0.01%	-81.9%
63	Gotham Asset Management#63 · 75,514 sh	75,514	$10.4M	0.02%	-31.7%
64	Swiss National Bank#64 · 71,600 sh	71,600	$9.8M	<0.01%	+0.6%
65	VICTORY CAPITAL MANAGEMENT#65 · 71,406 sh	71,406	$9.8M	<0.01%	+7.5%
66	Freestone Grove Partners#66 · 68,754 sh	68,754	$9.5M	0.06%	+712.1%
67	AMERICAN CENTURY COMPANIES#67 · 67,466 sh	67,466	$9.3M	<0.01%	-1.8%
68	WELLS FARGO & COMPANY#68 · 65,887 sh	65,887	$9.1M	<0.01%	+34.9%
69	ALLIANCEBERNSTEIN L.P.#69 · 100,557 sh	100,557	$8.8M	<0.01%	+4.2%
70	NORDEA INVESTMENT MANAGEMENT AB#70 · 62,240 sh	62,240	$8.7M	<0.01%	-63.0%
71	Quantinno Capital Management#71 · 60,042 sh	60,042	$8.3M	<0.01%	+65.6%
72	Willis Investment Counsel#72 · 57,156 sh	57,156	$7.9M	—	+66.0%
73	LPL Financial#73 · 56,343 sh	56,343	$7.7M	<0.01%	+4.0%
74	NORGES BANK#74 · 53,317 sh	53,317	$7.3M	<0.01%	—
75	Robeco Institutional Asset Management B.V.#75 · 50,820 sh	50,820	$7.0M	—	-33.7%
76	BNP Paribas Asset Management Holding S.A.#76 · 50,294 sh	50,294	$6.9M	<0.01%	+0.1%
77	LGT Fund Management Ltd.#77 · 48,100 sh	48,100	$6.6M	0.28%	+104.8%
78	RAYMOND JAMES FINANCIAL#78 · 47,864 sh	47,864	$6.6M	<0.01%	+30.3%
79	PRICE T ROWE ASSOCIATES#79 · 47,705 sh	47,705	$6.6M	<0.01%	-58.0%
80	IQ EQ FUND MANAGEMENT (IRELAND) Ltd#80 · 47,480 sh	47,480	$6.5M	0.42%	+35.1%
81	Herald Investment Management Ltd#81 · 47,500 sh	47,500	$6.5M	—	-13.6%
82	NICHOLAS COMPANY#82 · 47,326 sh	47,326	$6.5M	0.12%	0.0%
83	Corient Private Wealth#83 · 45,513 sh	45,513	$6.3M	<0.01%	+79.6%
84	SEI INVESTMENTS#84 · 44,034 sh	44,034	$6.1M	<0.01%	-6.9%
85	FRANKLIN RESOURCES#85 · 43,255 sh	43,255	$5.9M	<0.01%	+28.2%
86	Alapocas Investment Partners#86 · 43,215 sh	43,215	$5.9M	5.80%	-25.6%
87	AMERIPRISE FINANCIAL#87 · 43,129 sh	43,129	$5.9M	<0.01%	-76.6%
88	Taylor Hoffman Capital Management#88 · 42,237 sh	42,237	$5.8M	1.41%	+13.4%
89	Universal- Beteiligungs- und Servicegesellschaft mbH#89 · 41,607 sh	41,607	$5.7M	<0.01%	+32.0%
90	THIRD AVENUE MANAGEMENT#90 · 39,120 sh	39,120	$5.4M	0.86%	0.0%
91	HighTower Advisors#91 · 38,408 sh	38,408	$5.3M	<0.01%	+21.7%
92	MetLife Investment Management#92 · 37,565 sh	37,565	$5.2M	0.02%	+1.9%
93	Cresset Asset Management#93 · 36,415 sh	36,415	$5.0M	0.02%	+968.2%
94	CAISSE DE DEPOT ET PLACEMENT DU QUEBEC#94 · 36,279 sh	36,279	$5.0M	<0.01%	+25.5%
95	VANGUARD ASSET MANAGEMENT, Ltd#95 · 35,899 sh	35,899	$4.9M	<0.01%	+12.2%
96	Holocene Advisors#96 · 35,038 sh	35,038	$4.8M	0.01%	New
97	Alyeska Investment Group, L.P.#97 · 33,624 sh	33,624	$4.6M	0.01%	-89.0%
98	MANUFACTURERS LIFE INSURANCE COMPANY, THE#98 · 33,435 sh	33,435	$4.6M	<0.01%	-1.7%
99	SEGALL BRYANT & HAMILL#99 · 32,904 sh	32,904	$4.5M	0.05%	-7.4%
100	BARCLAYS PLC#100 · 32,810 sh	32,810	$4.5M	<0.01%	-75.8%

Funds that sold out of QLYS in Q2 2026 (71)

Held QLYS at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held QLYS in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
Fundsmith LLP226,077 sh	226,077	$19.9M
OBERWEIS ASSET MANAGEMENT118,900 sh	118,900	$10.4M
Qube Research & Technologies Ltd55,200 sh	55,200	$4.8M
RENAISSANCE GROUP47,827 sh	47,827	$4.2M
Y-Intercept (Hong Kong) Ltd47,194 sh	47,194	$4.1M
PUBLIC SECTOR PENSION INVESTMENT BOARD47,070 sh	47,070	$4.1M
Asset Management One , Ltd.45,262 sh	45,262	$4.0M
HUSSMAN STRATEGIC ADVISORS42,000 sh	42,000	$3.7M
VAN ECK ASSOCIATES41,000 sh	41,000	$3.6M
Nutshell Asset Management Ltd40,644 sh	40,644	$3.6M
SEIZERT CAPITAL PARTNERS32,840 sh	32,840	$2.9M
OSSIAM32,400 sh	32,400	$2.8M
SUSQUEHANNA FUNDAMENTAL INVESTMENTS31,143 sh	31,143	$2.7M
Pinnacle Financial Partners30,042 sh	30,042	$2.6M
ALGERT GLOBAL26,496 sh	26,496	$2.3M
BLI - Banque de Luxembourg Investments16,000 sh	16,000	$2.1M
CLARK ESTATES24,000 sh	24,000	$2.1M
HEALTHCARE OF ONTARIO PENSION PLAN FUND21,140 sh	21,140	$1.9M
TORRAY18,178 sh	18,178	$1.6M
Illinois Municipal Retirement Fund18,041 sh	18,041	$1.6M
Quantbot Technologies17,586 sh	17,586	$1.5M
Main Management ETF Advisors15,835 sh	15,835	$1.4M
Mariner14,464 sh	14,464	$1.3M
WESBANCO BANK12,156 sh	12,156	$1.1M
HRT FINANCIAL12,084 sh	12,084	$1.1M
Aquatic Capital Management12,007 sh	12,007	$1.1M
E. Ohman J:or Asset Management AB11,680 sh	11,680	$1.0M
DARK FOREST CAPITAL MANAGEMENT10,419 sh	10,419	$915.3K
Bridgewater Associates10,219 sh	10,219	$897.7K
JANE STREET GROUP9,861 sh	9,861	$866.3K
OCCUDO QUANTITATIVE STRATEGIES9,386 sh	9,386	$815.9K
Graham Capital Management, L.P.9,032 sh	9,032	$793.5K
NOVEM GROUP8,405 sh	8,405	$738.4K
GSA CAPITAL PARTNERS LLP7,997 sh	7,997	$703.0K
HANCOCK WHITNEY7,539 sh	7,539	$655.4K
Dynamic Technology Lab Private Ltd6,951 sh	6,951	$610.6K
ARGENT CAPITAL MANAGEMENT6,767 sh	6,767	$594.5K
Marshall Financial Group6,637 sh	6,637	$583.1K
KESTRA PRIVATE WEALTH SERVICES5,057 sh	5,057	$444.3K
Yorktown Management & Research4,700 sh	4,700	$412.9K
DC Investments Management4,539 sh	4,539	$398.8K
Formidable Asset Management2,952 sh	2,952	$392.3K
Campbell & Investment Adviser4,311 sh	4,311	$378.7K
TWO SIGMA SECURITIES3,560 sh	3,560	$312.7K
Ameritas Advisory Services3,215 sh	3,215	$282.4K
BOOTHBAY FUND MANAGEMENT3,074 sh	3,074	$270.1K
AXQ CAPITAL3,024 sh	3,024	$265.7K
Keebeck Wealth Management2,988 sh	2,988	$262.5K
Centiva Capital2,862 sh	2,862	$251.4K
Marex Group plc2,835 sh	2,835	$249.1K
Point2,810 sh	2,810	$246.9K
Merit Financial Group2,650 sh	2,650	$232.8K
Private Advisor Group2,524 sh	2,524	$221.7K
WILLNER & HELLER2,400 sh	2,400	$210.8K
Caitong International Asset Management , Ltd1,413 sh	1,413	$124.1K
Advisory Services Network512 sh	512	$45.0K
MAI Capital Management441 sh	441	$38.7K
Aster Capital Management (DIFC) Ltd298 sh	298	$37.5K
Root Financial Partners297 sh	297	$26.1K
Strive Financial Group200 sh	200	$18.0K
Basecamp Wealth Advisors134 sh	134	$11.8K
GROUP ONE TRADING, L.P.100 sh	100	$8.8K
Quarry20 sh	20	$1.8K
Walleye Capital18 sh	18	$1.6K
Destiny Wealth Partners18 sh	18	$1.6K
Prestige Wealth Management Group10 sh	10	$879.00
Breakwater Investment Management5 sh	5	$440.00
Operose Advisors2 sh	2	$176.00
Valued Wealth Advisors1 sh	1	$88.00
Sound Income Strategies1 sh	1	$86.00
Elequin Securities11 sh	11	—

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.