MCKESSON CORP

Ticker: MCK CUSIP: 58155Q103 Class: COM

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 1,003 Value ($000) $823 Avg Close $815.57 Range $729.36 - $894.75

Q2 2025

Shares 6,119 Value ($000) $4,484 Avg Close $703.74 Range $639.74 - $734.80

Q1 2025

Shares 12,464 Value ($000) $8,388 Avg Close $615.89 Range $563.37 - $676.56

Q4 2024

Shares 29,081 Value ($000) $16,574 Avg Close $557.26 Range $477.84 - $629.21

Q3 2024

Shares 29,955 Value ($000) $14,810 Avg Close $553.37 Range $461.94 - $633.30

Q2 2024

Shares 27,039 Value ($000) $15,792 Avg Close $552.61 Range $510.92 - $608.12

Q1 2024

Shares 20,628 Value ($000) $11,074 Avg Close $503.45 Range $458.60 - $535.85

Q4 2023

Shares 560 Value ($000) $259 Avg Close $450.30 Range $427.53 - $472.13

Q3 2023

Shares 3,343 Value ($000) $1,454 Avg Close $416.71 Range $390.69 - $442.39

Q2 2022

Shares 18,107 Value ($000) $5,907 Avg Close $314.09 Range $293.49 - $333.55

Q2 2021

Shares 13,146 Value ($000) $2,514 Avg Close $188.10 Range $175.56 - $199.15

Q4 2020

Shares 33,202 Value ($000) $5,774 Avg Close $161.42 Range $136.86 - $181.74

Q3 2020

Shares 12,009 Value ($000) $1,789 Avg Close $146.77 Range $134.98 - $154.90

Q2 2020

Shares 14,466 Value ($000) $2,219 Avg Close $139.25 Range $116.70 - $159.48

Q1 2020

Shares 8,374 Value ($000) $1,133 Avg Close $140.83 Range $108.46 - $165.39

Q4 2019

Shares 9,731 Value ($000) $1,346 Avg Close $135.52 Range $122.86 - $148.27

Q3 2019

Shares 7,942 Value ($000) $1,085 Avg Close $135.60 Range $125.86 - $144.04

Q2 2019

Shares 7,214 Value ($000) $969 Avg Close $118.84 Range $106.35 - $129.65

Q1 2019

Shares 2,170 Value ($000) $254 Avg Close $117.27 Range $103.60 - $130.18

Q4 2018

Shares 13,180 Value ($000) $1,456 Avg Close $118.11 Range $100.71 - $131.46

Q3 2018

Shares 12,627 Value ($000) $1,675 Avg Close $123.13 Range $115.68 - $131.94

Q2 2018

Shares 7,827 Value ($000) $1,044 Avg Close $137.76 Range $123.99 - $151.37

Q1 2018

Shares 17,408 Value ($000) $2,452 Avg Close $146.42 Range $129.03 - $167.96

Q3 2017

Shares 8,408 Value ($000) $1,292 Avg Close $146.01 Range $135.66 - $157.85

Q2 2017

Shares 4,262 Value ($000) $701 Avg Close $141.57 Range $124.87 - $158.24

Q3 2016

Shares 455 Value ($000) $76 Avg Close $173.09 Range $152.05 - $185.10

Q2 2016

Shares 15,000 Value ($000) $2,800 Avg Close $162.65 Range $143.03 - $174.89

Q1 2016

Shares 400 Value ($000) $63 Avg Close $149.58 Range $137.18 - $182.09

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,003	$823	$815.57	$729.36 - $894.75
Q2 2025	6,119	$4,484	$703.74	$639.74 - $734.80
Q1 2025	12,464	$8,388	$615.89	$563.37 - $676.56
Q4 2024	29,081	$16,574	$557.26	$477.84 - $629.21
Q3 2024	29,955	$14,810	$553.37	$461.94 - $633.30
Q2 2024	27,039	$15,792	$552.61	$510.92 - $608.12
Q1 2024	20,628	$11,074	$503.45	$458.60 - $535.85
Q4 2023	560	$259	$450.30	$427.53 - $472.13
Q3 2023	3,343	$1,454	$416.71	$390.69 - $442.39
Q2 2022	18,107	$5,907	$314.09	$293.49 - $333.55
Q2 2021	13,146	$2,514	$188.10	$175.56 - $199.15
Q4 2020	33,202	$5,774	$161.42	$136.86 - $181.74
Q3 2020	12,009	$1,789	$146.77	$134.98 - $154.90
Q2 2020	14,466	$2,219	$139.25	$116.70 - $159.48
Q1 2020	8,374	$1,133	$140.83	$108.46 - $165.39
Q4 2019	9,731	$1,346	$135.52	$122.86 - $148.27
Q3 2019	7,942	$1,085	$135.60	$125.86 - $144.04
Q2 2019	7,214	$969	$118.84	$106.35 - $129.65
Q1 2019	2,170	$254	$117.27	$103.60 - $130.18
Q4 2018	13,180	$1,456	$118.11	$100.71 - $131.46
Q3 2018	12,627	$1,675	$123.13	$115.68 - $131.94
Q2 2018	7,827	$1,044	$137.76	$123.99 - $151.37
Q1 2018	17,408	$2,452	$146.42	$129.03 - $167.96
Q3 2017	8,408	$1,292	$146.01	$135.66 - $157.85
Q2 2017	4,262	$701	$141.57	$124.87 - $158.24
Q3 2016	455	$76	$173.09	$152.05 - $185.10
Q2 2016	15,000	$2,800	$162.65	$143.03 - $174.89
Q1 2016	400	$63	$149.58	$137.18 - $182.09