McKesson Corporation
MX ˙ BMV ˙ US58155Q1031
SecurityMX:MCK / McKesson Corporation
InstitutionThompson Investment Management, Inc.
Latest Disclosed Ownership4,758 shares
Latest Disclosed Value $ 4,117,384
Thompson Investment Management, Inc. reports 1.10% decrease in ownership of MCK / McKesson Corporation

On April 8, 2026 - Thompson Investment Management, Inc. filed a 13F-HR form disclosing ownership of 4,758 shares of McKesson Corporation (MX:MCK) valued at $4,117,384 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 14, 2026 disclosing 4,811 shares of McKesson Corporation. This represents a change in shares of -1.10% 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)
2026-04-08 2026-03-31 13F MCKESSON COM 58155Q103 4,758 -53 -1.10 4,117 4.33 0.5130
2026-01-14 2025-12-31 13F MCKESSON COM 58155Q103 4,811 -196 -3.91 3,946 2.02 0.4947
2025-10-17 2025-09-30 13F MCKESSON COM 58155Q103 5,007 -183 -3.53 3,868 1.71 0.5159
2025-07-24 2025-06-30 13F MCKESSON COM 58155Q103 5,190 -1,450 -21.84 3,803 -14.88 0.5367
2025-04-15 2025-03-31 13F MCKESSON COM 58155Q103 6,640 -2,342 -26.07 4,469 -12.70 0.6698
2025-01-28 2024-12-31 13F MCKESSON COM 58155Q103 8,982 -2,131 -19.18 5,119 -6.84 0.7356
2024-10-15 2024-09-30 13F MCKESSON COM 58155Q103 11,113 46 0.42 5,494 -14.99 0.7845
2024-07-08 2024-06-30 13F MCKESSON COM 58155Q103 11,067 -658 -5.61 6,464 2.69 0.9981
2024-04-15 2024-03-31 13F MCKESSON COM 58155Q103 11,725 -338 -2.80 6,295 12.71 0.9518
2024-01-16 2023-12-31 13F MCKESSON COM 58155Q103 12,063 -1,581 -11.59 5,585 -5.88 0.8984
2023-10-30 2023-09-30 13F MCKESSON COM 58155Q103 13,644 -1,706 -11.11 5,933 -9.54 1.0543
2023-07-10 2023-06-30 13F MCKESSON COM 58155Q103 15,350 -247 -1.58 6,559 18.12 1.0648
2023-04-24 2023-03-31 13F MCKESSON COM 58155Q103 15,597 498 3.30 5,553 110,960.00 0.9392
2023-01-20 2022-12-31 13F MCKESSON COM 58155Q103 15,099 -2,240 -12.92 6 -99.92 1.0396
2022-10-17 2022-09-30 13F MCKESSON COM 58155Q103 17,339 -1,856 -9.67 5,893 -5.89 1.1425
2022-08-05 2022-06-30 13F MCKESSON COM 58155Q103 19,195 -12,251 -38.96 6,262 -34.95 1.0891
2022-04-20 2022-03-31 13F MCKESSON COM 58155Q103 31,446 -1,402 -4.27 9,627 17.91 1.4163
2022-02-07 2021-12-31 13F MCKESSON COM 58155Q103 32,848 -1,594 -4.63 8,165 18.90 1.1571
2021-10-13 2021-09-30 13F MCKESSON COM 58155Q103 34,442 204 0.60 6,867 4.87 1.0242
2021-08-10 2021-06-30 13F MCKESSON COM 58155Q103 34,238 55 0.16 6,548 -1.78 0.9462
2021-04-07 2021-03-31 13F MCKESSON COM 58155Q103 34,183 528 1.57 6,667 13.91 1.0065
2021-01-19 2020-12-31 13F MCKESSON COM 58155Q103 33,655 302 0.91 5,853 17.84 0.9954
2020-10-13 2020-09-30 13F MCKESSON COM 58155Q103 33,353 -531 -1.57 4,967 -4.44 0.9316
2020-07-23 2020-06-30 13F MCKESSON COM 58155Q103 33,884 -754 -2.18 5,198 10.95 1.0050
2020-04-23 2020-03-31 13F MCKESSON COM 58155Q103 34,638 -2,686 -7.20 4,685 -9.26 1.0379
2020-02-06 2019-12-31 13F MCKESSON COM 58155Q103 37,324 -963 -2.52 5,163 -1.32 0.8351
2019-11-04 2019-09-30 13F MCKESSON COM 58155Q103 38,287 -305 -0.79 5,232 0.89 1.0234
2019-08-07 2019-06-30 13F MCKESSON COM 58155Q103 38,592 313 0.82 5,186 15.73 1.0128
2019-04-24 2019-03-31 13F MCKESSON COM 58155Q103 38,279 290 0.76 4,481 6.77 0.8571
2019-02-04 2018-12-31 13F MCKESSON COM 58155Q103 37,989 -4,216 -9.99 4,197 -25.04 0.9847
2018-11-06 2018-09-30 13F MCKESSON COM 58155Q103 42,205 4,710 12.56 5,599 11.94 0.9985
2018-07-09 2018-06-30 13F MCKESSON COM 58155Q103 37,495 -572 -1.50 5,002 -6.73 0.9133
2018-05-04 2018-03-31 13F MCKESSON COM 58155Q103 38,067 250 0.66 5,363 -9.07 0.9994
2018-02-02 2017-12-31 13F MCKESSON COM 58155Q103 37,817 1,290 3.53 5,898 5.11 1.0407
2017-11-07 2017-09-30 13F MCKESSON COM 58155Q103 36,527 -1,024 -2.73 5,611 -9.19 1.0463
2017-08-07 2017-06-30 13F MCKESSON COM 58155Q103 37,551 -990 -2.57 6,179 8.14 1.1611
2017-05-01 2017-03-31 13F MCKESSON COM 58155Q103 38,541 -144 -0.37 5,714 5.15 1.0880
2017-02-08 2016-12-31 13F MCKESSON COM 58155Q103 38,685 4,787 14.12 5,434 -3.87 1.0627
2016-11-08 2016-09-30 13F MCKESSON COM 58155Q103 33,898 -720 -2.08 5,653 -12.51 1.0887
2016-08-01 2016-06-30 13F MCKESSON COM 58155Q103 34,618 -721 -2.04 6,461 16.27 1.3215
2016-04-21 2016-03-31 13F MCKESSON COM 58155Q103 35,339 3,125 9.70 5,557 -12.54 1.1612
2016-02-02 2015-12-31 13F MCKESSON COM 58155Q103 32,214 1,803 5.93 6,354 12.92 1.3233
2015-10-23 2015-09-30 13F MCKESSON COM 58155Q103 30,411 -236 -0.77 5,627 -18.33 1.2145
2015-07-24 2015-06-30 13F MCKESSON COM 58155Q103 30,647 -994 -3.14 6,890 -3.73 1.3218
2015-05-04 2015-03-31 13F MCKESSON COM 58155Q103 31,641 -1,181 -3.60 7,157 5.05 1.3588
2015-02-06 2014-12-31 13F MCKESSON COM 58155Q103 32,822 -1,810 -5.23 6,813 -3.28 1.2991
2014-11-05 2014-09-30 13F MCKESSON COM 58155Q103 34,632 -2,464 -6.64 7,044 1.97 1.3479
2014-08-05 2014-06-30 13F MCKESSON COM 58155Q103 37,096 1,112 3.09 6,908 8.72 1.3361
2014-04-10 2014-03-31 13F MCKESSON COM 58155Q103 35,984 -2,840 -7.32 6,354 1.40 1.2682
2014-01-22 2013-12-31 13F MCKESSON COM 58155Q103 38,824 -3,181 -7.57 6,266 16.27 1.2416
2013-11-04 2013-09-30 13F MCKESSON COM 58155Q103 42,005 -1,450 -3.34 5,389 8.30 1.1636
2013-07-30 2013-06-30 13F MCKESSON COM 58155Q103 43,455 43,455 4,976 1.1494
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.