GROUP ONE TRADING LLC

Position in PUBM — PubMatic, Inc.

CIK 932540 CHICAGO, IL

Position in PUBM

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

Position Value

$949,953

+$427,767 QoQ

Shares Held

72,405

+13.4% QoQ

Ownership

0.159%

of shares outstanding

% of Portfolio

0.03%

of 13F equity value

Holder Rank

#51

of 151 holders

Holding Since

Mar 2022

15 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Jun 30, 2026

GROUP ONE TRADING LLC holds $131,048,867 across 88 Software - Application names. PUBM ranks #26 (0.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MSTR	Strategy Inc	220,929	$19,205,357
2	SHOP	Shopify Inc.	112,530	$12,848,675
3	U	Unity Software Inc.	355,514	$10,160,590
4	UBER	Uber Technologies, Inc	129,875	$9,371,780
5	ADBE	Adobe Inc.	39,832	$8,166,356
6	CDNS	Cadence Design Systems Inc	21,083	$7,912,871
7	BL	Blackline, Inc.	230,780	$6,477,994
8	HUBS	Hubspot Inc	34,715	$6,335,834

15 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$949,953	72,405	+13.4%	Shares	Sole	2026-08-14
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.