GROUP ONE TRADING LLC

Position in MCK — Mckesson Corp

CIK 932540 CHICAGO, IL

Position in MCK

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

Position Value

$1,935,810

+$1,113,060 QoQ

Shares Held

2,237

+123.0% QoQ

Ownership

0.002%

of shares outstanding

% of Portfolio

0.07%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

16 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Healthcare · as of Mar 31, 2026

GROUP ONE TRADING LLC holds $6,822,858 across 5 Medical Distribution names. MCK ranks #2 (28.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CAH	Cardinal Health Inc	22,351	$4,722,989
2	MCK	Mckesson Corp This page	2,237	$1,935,810
3	HSIC	Henry Schein Inc	1,317	$97,062
4	ACH	Accendra Health Inc/Va/	29,055	$66,245
5	COSM	Cosmos Health Inc.	2,373	$752

16 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$1,935,810	2,237	+123.0%	Shares	Sole	2026-05-13
2025-12-31	$822,750	1,003	-83.6%	Shares	Sole	2026-02-12
2025-06-30	$4,483,880	6,119	-50.9%	Shares	Sole	2025-08-14
2025-03-31	$8,388,147	12,464	-57.1%	Shares	Sole	2025-05-14
2024-12-31	$16,573,552	29,081	-2.9%	Shares	Sole	2025-05-14
2024-09-30	$14,810,351	29,955	+10.8%	Shares	Sole	2024-11-14
2024-06-30	$15,791,857	27,039	+31.1%	Shares	Sole	2024-08-14
2024-03-31	$11,074,141	20,628	+3583.6%	Shares	Sole	2024-05-10
2023-12-31	$259,268	560	-83.2%	Shares	Sole	2024-02-14
2023-09-30	$1,453,703	3,343	-81.5%	Shares	Sole	2023-11-09
2022-06-30	$5,906,684	18,107	+37.7%	Shares	Sole	2022-08-11
2021-06-30	$2,514,041	13,146	-60.4%	Shares	Sole	2021-08-10
2020-12-31	$5,774,491	33,202	+176.5%	Shares	Sole	2021-02-10
2020-09-30	$1,788,500	12,009	-17.0%	Shares	Sole	2020-11-12
2020-06-30	$2,219,373	14,466	+72.7%	Shares	Sole	2020-08-13
2020-03-31	$1,132,667	8,374	—	Shares	Sole	2020-05-13
No filing history on record for this holder in this stock.