Portolan Capital Management, LLC

Position in QLYS — Qualys, Inc.

CIK 1350290 BOSTON, MA

Position in QLYS

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$72,843,164

+$51,844,555 QoQ

Shares Held

529,807

+121.7% QoQ

Ownership

1.53%

of shares outstanding

% of Portfolio

2.74%

of 13F equity value

Holder Rank

#19

of 427 holders

Holding Since

Mar 2020

12 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Jun 30, 2026

Portolan Capital Management, LLC holds $345,186,039 across 13 Software - Infrastructure names. QLYS ranks #1 (21.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	QLYS	Qualys, Inc. This page	529,807	$72,843,164
2	FOUR	Shift4 Payments, Inc.	1,114,116	$54,190,602
3	AKAM	Akamai Technologies Inc	310,361	$36,687,773
4	ZETA	Zeta Global Holdings Corp.	1,502,738	$29,573,883
5	CLBT	Cellebrite DI Ltd.	1,932,514	$28,214,704
6	BAND	Bandwidth Inc.	412,701	$26,123,973
7	TWLO	Twilio Inc	115,397	$23,809,863
8	RELY	Remitly Global, Inc.	1,017,592	$22,804,236

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$72,843,164	529,807	+121.7%	Shares	Sole	2026-08-14
2026-03-31	$20,998,609	239,028	+361.0%	Shares	Sole	2026-05-15
2025-12-31	$6,891,529	51,855	+41.2%	Shares	Sole	2026-02-17
2022-12-31	$4,120,524	36,715	+52.7%	Shares	Sole	2023-02-13
2022-09-30	$3,351,353	24,043	-0.2%	Shares	Sole	2022-11-14
2022-06-30	$3,039,595	24,097	-38.5%	Shares	Sole	2022-08-15
2022-03-31	$5,580,478	39,186	+68.9%	Shares	Sole	2022-05-16
2021-09-30	$2,582,484	23,205	-61.4%	Shares	Sole	2021-11-15
2020-12-31	$7,333,770	60,177	-28.8%	Shares	Sole	2021-02-16
2020-09-30	$8,282,041	84,502	+28.1%	Shares	Sole	2020-11-16
2020-06-30	$6,860,951	65,958	-66.4%	Shares	Sole	2020-08-14
2020-03-31	$17,056,999	196,080	—	Shares	Sole	2020-05-14
No filing history on record for this holder in this stock.