SIMPLEX TRADING, LLC

Position in PUBM — PubMatic, Inc.

CIK 1488542 CHICAGO, IL

Position in PUBM

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$171,690

+$71,220 QoQ

Shares Held

20,989

+85.3% QoQ

Ownership

0.045%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Jun 2021

13 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Mar 31, 2026

SIMPLEX TRADING, LLC holds $48,722,731 across 81 Software - Application names. PUBM ranks #28 (0.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	NOW	ServiceNow, Inc.	96,638	$10,103,502
2	MSTR	Strategy Inc	45,923	$5,731,190
3	ALIT	Alight, Inc. / Delaware	428,995	$4,999,507
4	INTU	Intuit Inc.	7,768	$3,358,727
5	SNOW	Snowflake Inc.	21,971	$3,313,666
6	DUOL	Duolingo, Inc.	31,200	$3,075,384
7	ADBE	Adobe Inc.	12,528	$3,045,306
8	GRAB	Grab Holdings Ltd	730,250	$2,672,715

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$171,690	20,989	+85.3%	Shares	Sole	2026-05-14
2025-12-31	$100,470	11,327	-61.5%	Shares	Sole	2026-02-11
2025-06-30	$366,134	29,432	+8.0%	Shares	Sole	2025-08-05
2025-03-31	$249,119	27,256	-0.7%	Shares	Sole	2025-05-12
2023-09-30	$332,036	27,441	-48.5%	Shares	Sole	2023-11-01
2023-06-30	$973,227	53,240	+94.4%	Shares	Sole	2023-08-04
2023-03-31	$378,419	27,382	-16.6%	Shares	Sole	2023-04-27
2022-12-31	$420,718	32,843	-44.0%	Shares	Sole	2023-02-02
2022-09-30	$975,432	58,655	+855.9%	Shares	Sole	2022-11-04
2022-03-31	$160,272	6,136	-68.8%	Shares	Sole	2022-05-02
2021-12-31	$669,627	19,666	+307.7%	Shares	Sole	2022-02-23
2021-09-30	$127,112	4,824	+0.1%	Shares	Sole	2021-10-28
2021-06-30	$188,356	4,821	—	Shares	Sole	2021-08-12
No filing history on record for this holder in this stock.