McKesson Corporation
US ˙ NYSE ˙ US58155Q1031

SecurityMCK / McKesson Corporation
InstitutionAsset Management One Co., Ltd.
Latest Disclosed Ownership56,115 shares
Latest Disclosed Value $ 48,559,676
Asset Management One Co., Ltd. reports 2.38% decrease in ownership of MCK / McKesson Corporation

On May 8, 2026 - Asset Management One Co., Ltd. filed a 13F-HR form disclosing ownership of 56,115 shares of McKesson Corporation (US:MCK) valued at $48,559,676 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 57,485 shares of McKesson Corporation. This represents a change in shares of -2.38% during the quarter. The current value of the position is $42,476,249 USD.

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)
2026-05-08 2026-03-31 13F MCKESSON COM 58155Q103 56,115 -1,370 -2.38 48,560 1.75 0.1432
2026-01-27 2025-12-31 13F MCKESSON COM 58155Q103 57,485 -848 -1.45 47,727 5.91 0.1327
2025-10-22 2025-09-30 13F MCKESSON COM 58155Q103 58,333 -576 -0.98 45,065 4.39 0.1306
2025-07-31 2025-06-30 13F MCKESSON COM 58155Q103 58,909 -756 -1.27 43,167 7.51 0.1353
2025-04-23 2025-03-31 13F MCKESSON COM 58155Q103 59,665 -2,761 -4.42 40,154 11.55 0.1389
2025-01-30 2024-12-31 13F MCKESSON COM 58155Q103 62,426 -5,275 -7.79 35,997 7.54 0.1237
2024-10-30 2024-09-30 13F MCKESSON COM 58155Q103 67,701 5,013 8.00 33,473 -8.58 0.1191
2024-07-18 2024-06-30 13F MCKESSON COM 58155Q103 62,688 -442 -0.70 36,612 8.03 0.1401
2024-05-02 2024-03-31 13F MCKESSON COM 58155Q103 63,130 -6,307 -9.08 33,891 6.69 0.1306
2024-01-24 2023-12-31 13F MCKESSON COM 58155Q103 69,437 11,623 20.10 31,768 26.36 0.1279
2023-10-19 2023-09-30 13F MCKESSON COM 58155Q103 57,814 114 0.20 25,140 1.97 0.1119
2023-07-31 2023-06-30 13F MCKESSON COM 58155Q103 57,700 -3,172 -5.21 24,656 13.76 0.1044
2023-04-25 2023-03-31 13F MCKESSON COM 58155Q103 60,872 -863 -1.40 21,673 -6.41 0.0982
2023-02-06 2022-12-31 13F MCKESSON COM 58155Q103 61,735 -5,315 -7.93 23,158 1.62 0.1129
2022-11-04 2022-09-30 13F MCKESSON COM 58155Q103 67,050 4,246 6.76 22,788 11.23 0.1159
2022-07-29 2022-06-30 13F MCKESSON COM 58155Q103 62,804 -2,464 -3.78 20,487 2.53 0.0962
2022-05-13 2022-03-31 13F MCKESSON COM 58155Q103 65,268 -4,473 -6.41 19,981 15.31 0.0780
2022-02-09 2021-12-31 13F MCKESSON COM 58155Q103 69,741 -2,555 -3.53 17,328 20.17 0.0604
2021-11-02 2021-09-30 13F MCKESSON COM 58155Q103 72,296 -693 -0.95 14,419 3.30 0.0553
2021-08-03 2021-06-30 13F MCKESSON COM 58155Q103 72,989 -2,097 -2.79 13,958 -4.69 0.0519
2021-05-14 2021-03-31 13F MCKESSON COM 58155Q103 75,086 -3,396 -4.33 14,645 7.15 0.0582
2021-02-12 2020-12-31 13F MCKESSON COM 58155Q103 78,482 -634 -0.80 13,668 16.01 0.0563
2020-11-13 2020-09-30 13F MCKESSON COM 58155Q103 79,116 -3,146 -3.82 11,782 -6.65 0.0542
2020-08-14 2020-06-30 13F MCKESSON COM 58155Q103 82,262 -7,668 -8.53 12,621 3.76 0.0621
2020-05-14 2020-03-31 13F MCKESSON COM 58155Q103 89,930 -9,840 -9.86 12,164 -11.86 0.0710
2020-02-14 2019-12-31 13F MCKESSON COM 58155Q103 99,770 -2,799 -2.73 13,800 -1.54 0.0622
2019-11-14 2019-09-30 13F MCKESSON COM 58155Q103 102,569 1,287 1.27 14,016 2.97 0.0675
2019-08-14 2019-06-30 13F MCKESSON COM 58155Q103 101,282 439 0.44 13,612 15.33 0.0669
2019-05-15 2019-03-31 13F MCKESSON COM 58155Q103 100,843 -235,208 -69.99 11,803 -68.22 0.0638
2019-02-13 2018-12-31 13F MCKESSON COM 58155Q103 336,051 3,482 1.05 37,134 -15.79 0.0885
2018-11-14 2018-09-30 13F MCKESSON COM 58155Q103 332,569 -67 -0.02 44,099 -0.71 0.0905
2018-08-14 2018-06-30 13F MCKESSON COM 58155Q103 332,636 -3,583 -1.07 44,415 -6.23 0.0971
2018-05-14 2018-03-31 13F MCKESSON COM 58155Q103 336,219 -1,780 -0.53 47,364 -10.21 0.1067
2018-02-14 2017-12-31 13F MCKESSON COM 58155Q103 337,999 -2,546 -0.75 52,749 0.83 0.1164
2017-11-14 2017-09-30 13F MCKESSON COM 58155Q103 340,545 8,307 2.50 52,313 -4.28 0.1228
2017-08-14 2017-06-30 13F MCKESSON COM 58155Q103 332,238 -27,508 -7.65 54,652 2.43 0.1395
2017-05-11 2017-03-31 13F MCKESSON COM 58155Q103 359,746 -54,394 -13.13 53,357 -8.33 0.1401
2017-05-02 2016-12-31 13F/A-1 MCKESSON COM 58155Q103 414,140 364,645 736.73 58,207 610.10 0.1488
2017-02-13 2016-12-31 13F MCKESSON COM 58155Q103 418,190 58,776
2016-11-07 2016-09-30 13F MCKESSON Com 58155Q103 49,495 12,723 34.60 8,197 20.79 0.1218
2016-08-03 2016-06-30 13F MCKESSON Com 58155Q103 36,772 -4,497 -10.90 6,786 4.40 0.1018
2016-05-05 2016-03-31 13F MCKESSON Com 58155Q103 41,269 -1,898 -4.40 6,500 -24.30 0.0949
2016-01-28 2015-12-31 13F MCKESSON Com 58155Q103 43,167 -13,689 -24.08 8,586 -18.34 0.1282
2015-11-12 2015-09-30 13F MCKESSON Com 58155Q103 56,856 4,727 9.07 10,514 -10.18 0.1600
2015-08-06 2015-06-30 13F MCKESSON Com 58155Q103 52,129 1,331 2.62 11,706 1.23 0.1622
2015-05-11 2015-03-31 13F MCKESSON Com 58155Q103 50,798 -8,486 -14.31 11,564 -6.51 0.1428
2015-02-09 2014-12-31 13F MCKESSON Com 58155Q103 59,284 1,684 2.92 12,369 9.88 0.1605
2014-11-05 2014-09-30 13F MCKESSON Com 58155Q103 57,600 12,338 27.26 11,257 32.58 0.1554
2014-08-12 2014-06-30 13F MCKESSON Com 58155Q103 45,262 -3,112 -6.43 8,491 -0.22 0.1267
2014-05-05 2014-03-31 13F MCKESSON Com 58155Q103 48,374 -15,842 -24.67 8,510 -17.79 0.1341
2014-02-05 2013-12-31 13F/A-1 MCKESSON COM 58155Q103 64,216 1,615 2.58 10,352 28.44 0.1604
2014-01-29 2013-12-31 13F MCKESSON COM 58155Q103 64,216 10,352
2014-02-05 2013-09-30 13F/A-1 MCKESSON COM 58155Q103 62,601 3,134 5.27 8,060 17.82 0.1213
2013-11-06 2013-09-30 13F MCKESSON Com 58155Q103 62,601 8,060
2014-02-12 2013-06-30 13F/A-1 MCKESSON COM 58155Q103 59,467 59,467 6,841 0.1111
2013-08-05 2013-06-30 13F MCKESSON Com 58155Q103 59,467 6,841
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.