McKesson Corporation
MX ˙ BMV ˙ US58155Q1031
SecurityMX:MCK / McKesson Corporation
InstitutionMainstay Capital Management Llc /adv
Latest Disclosed Ownership4,468 shares
Latest Disclosed Value $ 3,866,429
Mainstay Capital Management Llc /adv reports 1.41% increase in ownership of MCK / McKesson Corporation

On May 12, 2026 - Mainstay Capital Management Llc /adv filed a 13F-HR form disclosing ownership of 4,468 shares of McKesson Corporation (MX:MCK) valued at $3,866,429 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 4,406 shares of McKesson Corporation. This represents a change in shares of 1.41% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-12 2026-03-31 13F MCKESSON COM 58155Q103 4,468 62 1.41 3,866 6.97 0.2981
2026-01-27 2025-12-31 13F MCKESSON COM 58155Q103 4,406 218 5.21 3,614 11.72 0.2769
2025-12-10 2025-09-30 13F MCKESSON COM 58155Q103 4,188 -4,054 -49.19 3,235 -46.43 0.3243
2025-07-24 2025-06-30 13F MCKESSON COM 58155Q103 8,242 4,697 132.50 6,040 153.21 0.2978
2025-05-05 2025-03-31 13F MCKESSON COM 58155Q103 3,545 -507 -12.51 2,386 3.29 0.3271
2025-02-04 2024-12-31 13F MCKESSON COM 58155Q103 4,052 906 28.80 2,309 48.49 0.3512
2024-10-23 2024-09-30 13F MCKESSON COM 58155Q103 3,146 411 15.03 1,555 -2.63 0.2604
2024-07-30 2024-06-30 13F MCKESSON COM 58155Q103 2,735 193 7.59 1,597 17.08 0.2804
2024-04-30 2024-03-31 13F MCKESSON COM 58155Q103 2,542 -369 -12.68 1,365 1.26 0.2579
2024-01-25 2023-12-31 13F MCKESSON COM 58155Q103 2,911 520 21.75 1,348 29.64 0.2563
2023-10-26 2023-09-30 13F MCKESSON COM 58155Q103 2,391 -595 -19.93 1,040 -18.51 0.2198
2023-07-25 2023-06-30 13F MCKESSON COM 58155Q103 2,986 -10 -0.33 1,276 19.61 0.2287
2023-05-03 2023-03-31 13F MCKESSON COM 58155Q103 2,996 -245 -7.56 1,067 -12.26 0.2113
2023-02-14 2022-12-31 13F MCKESSON COM 58155Q103 3,241 -195 -5.68 1,216 4.02 0.2701
2022-11-15 2022-09-30 13F MCKESSON COM 58155Q103 3,436 -2,042 -37.28 1,168 -34.60 0.2924
2022-08-05 2022-06-30 13F MCKESSON COM 58155Q103 5,478 -185 -3.27 1,786 3.00 0.4116
2022-05-10 2022-03-31 13F MCKESSON COM 58155Q103 5,663 -135 -2.33 1,734 20.33 0.3178
2022-02-15 2021-12-31 13F MCKESSON COM 58155Q103 5,798 -1,466 -20.18 1,441 -0.48 0.4359
2021-11-12 2021-09-30 13F MCKESSON COM 58155Q103 7,264 976 15.52 1,448 20.47 0.8274
2021-08-06 2021-06-30 13F MCKESSON COM 58155Q103 6,288 -475 -7.02 1,202 -8.87 0.2821
2021-05-13 2021-03-31 13F MCKESSON COM 58155Q103 6,763 -625 -8.46 1,319 2.65 0.4080
2021-03-04 2020-12-31 13F MCKESSON COM 58155Q103 7,388 -5 -0.07 1,285 16.61 0.3760
2020-11-13 2020-09-30 13F MCKESSON COM 58155Q103 7,393 -575 -7.22 1,102 -9.82 0.2883
2020-07-23 2020-06-30 13F MCKESSON COM 58155Q103 7,968 -75 -0.93 1,222 13.46 0.3556
2020-04-23 2020-03-31 13F MCKESSON COM 58155Q103 8,043 -1,100 -12.03 1,077 -14.86 0.3470
2020-01-21 2019-12-31 13F MCKESSON COM 58155Q103 9,143 -125 -1.35 1,265 0.08 0.2911
2019-10-16 2019-09-30 13F MCKESSON COM 58155Q103 9,268 530 6.07 1,264 7.67 0.6987
2019-08-07 2019-06-30 13F MCKESSON COM 58155Q103 8,738 1,975 29.20 1,174 48.05 0.6155
2019-04-23 2019-03-31 13F MCKESSON COM 58155Q103 6,763 -1,018 -13.08 793 -6.38 0.6079
2019-02-08 2018-12-31 13F MCKESSON COM 58155Q103 7,781 360 4.85 847 -14.01 0.6129
2018-11-13 2018-09-30 13F MCKESSON COM 58155Q103 7,421 1,755 30.97 985 30.29 0.6228
2018-08-24 2018-06-30 13F/A-1 MCKESSON COM 58155Q103 5,666 0 0.00 756 -5.26 0.5963
2018-08-23 2018-06-30 13F MCKESSON COM 58155Q103 565,718 560,052 4,422
2018-05-10 2018-03-31 13F MCKESSON COM 58155Q103 5,666 1,294 29.60 798 17.01 0.6070
2018-05-10 2017-12-31 13F/A-1 MCKESSON COM 58155Q103 4,372 4,372 682 0.5654
2018-03-28 2017-12-31 13F MCKESSON COM 58155Q103 4,372 682
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.