GROUP ONE TRADING LLC

Position in UNP — Union Pacific Corp

CIK 932540 CHICAGO, IL

Position in UNP

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

Position Value

$13,206,291

+$10,970,231 QoQ

Shares Held

54,432

+475.4% QoQ

Ownership

0.009%

of shares outstanding

% of Portfolio

0.52%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

15 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Industrials · as of Mar 31, 2026

GROUP ONE TRADING LLC holds $13,608,515 across 6 Railroads names. UNP ranks #1 (97.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	UNP	Union Pacific Corp This page	54,432	$13,206,291
2	CP	Canadian Pacific Kansas City Ltd/Cn	4,113	$323,528
3	RAIL	FreightCar America, Inc.	5,179	$41,276
4	NSC	Norfolk Southern Corp	71	$20,377
5	TRN	Trinity Industries Inc	528	$16,991
6	GBX	Greenbrier Companies Inc	1	$52

15 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$13,206,291	54,432	+475.4%	Shares	Sole	2026-05-13
2025-09-30	$2,236,060	9,460	+208.8%	Shares	Sole	2025-11-12
2025-03-31	$723,603	3,063	+425.4%	Shares	Sole	2025-05-14
2024-12-31	$132,947	583	-91.8%	Shares	Sole	2025-05-14
2023-12-31	$1,748,077	7,117	+8.7%	Shares	Sole	2024-02-14
2023-09-30	$1,332,961	6,546	-24.4%	Shares	Sole	2023-11-09
2023-06-30	$1,771,599	8,658	+13.3%	Shares	Sole	2023-08-09
2023-03-31	$1,537,626	7,640	-6.4%	Shares	Sole	2023-05-12
2022-12-31	$1,689,484	8,159	+87.7%	Shares	Sole	2023-02-09
2022-09-30	$846,882	4,347	-50.3%	Shares	Sole	2022-11-09
2021-12-31	$2,201,868	8,740	-72.8%	Shares	Sole	2022-02-11
2021-06-30	$7,077,787	32,182	+428.7%	Shares	Sole	2021-08-10
2020-09-30	$1,198,347	6,087	+48.8%	Shares	Sole	2020-11-12
2020-06-30	$691,834	4,092	+943.9%	Shares	Sole	2020-08-13
2020-03-31	$55,287	392	—	Shares	Sole	2020-05-13
No filing history on record for this holder in this stock.