GROUP ONE TRADING LLC

Position in PUBM — PubMatic, Inc.

CIK 932540 CHICAGO, IL

Position in PUBM

as of Mar 31, 2026 · filed May 13, 2026 Compact

Position Value

$522,186

+$480,595 QoQ

Shares Held

63,837

+1261.4% QoQ

Ownership

0.137%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2022

14 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Mar 31, 2026

GROUP ONE TRADING LLC holds $59,639,662 across 72 Software - Application names. PUBM ranks #21 (0.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	DAVE	Dave Inc./DE	56,355	$9,810,841
2	UBER	Uber Technologies, Inc	109,506	$7,876,766
3	GRAB	Grab Holdings Ltd	1,510,157	$5,527,174
4	BULL	Webull Corp	829,943	$3,983,726
5	MSTR	Strategy Inc	26,482	$3,304,953
6	DDOG	Datadog, Inc.	24,354	$2,874,989
7	FIG	Figma, Inc.	124,457	$2,631,020
8	TTAN	ServiceTitan, Inc.	39,800	$2,525,708

14 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$522,186	63,837	+1261.4%	Shares	Sole	2026-05-13
2025-12-31	$41,591	4,689	-77.4%	Shares	Sole	2026-02-12
2025-09-30	$171,528	20,716	+144.9%	Shares	Sole	2025-11-12
2025-03-31	$77,324	8,460	-66.7%	Shares	Sole	2025-05-14
2024-06-30	$515,650	25,389	+484.1%	Shares	Sole	2024-08-14
2024-03-31	$103,110	4,347	-44.1%	Shares	Sole	2024-05-10
2023-12-31	$126,842	7,777	-73.5%	Shares	Sole	2024-02-14
2023-09-30	$355,473	29,378	+56.4%	Shares	Sole	2023-11-09
2023-06-30	$343,408	18,786	-35.5%	Shares	Sole	2023-08-09
2023-03-31	$402,438	29,120	-21.6%	Shares	Sole	2023-05-12
2022-12-31	$475,789	37,142	+658.6%	Shares	Sole	2023-02-09
2022-09-30	$81,420	4,896	-89.3%	Shares	Sole	2022-11-09
2022-06-30	$725,235	45,641	+70.7%	Shares	Sole	2022-08-11
2022-03-31	$698,370	26,737	—	Shares	Sole	2022-05-12
No filing history on record for this holder in this stock.