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GROUP ONE TRADING LLC

Position in TRU — TransUnion

CIK 932540 CHICAGO, IL

Position in TRU

as of Mar 31, 2026 · filed May 13, 2026
Position Value
$107,036
-$197,119 QoQ
Shares Held
1,547
-56.4% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2021
10 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in TRU Over Time

Shares Held

Position Value (USD)

Position in Financial Data & Stock Exchanges

Financial Services · as of Mar 31, 2026

GROUP ONE TRADING LLC holds $9,273,939 across 7 Financial Data & Stock Exchanges names. TRU ranks #4 (1.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 TRU
TransUnion
This page
1,547 $107,036

All Filings in TRU

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10 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $107,036 1,547
2025-12-31 $304,155 3,547
2025-09-30 $229,557 2,740
2024-03-31 $21,386 268
2023-03-31 $200,712 3,230
2022-12-31 $54,480 960
2022-09-30 $53,600 901
2021-09-30 $11,231 100
2021-06-30 $54,905 500
2021-03-31 $214,920 2,388