McKesson Corporation
US ˙ NYSE ˙ US58155Q1031

SecurityMCK / McKesson Corporation
InstitutionBoston Trust Walden Corp
Latest Disclosed Ownership1,464 shares
Latest Disclosed Value $ 1,266,887
Boston Trust Walden Corp reports 0.27% decrease in ownership of MCK / McKesson Corporation

On April 24, 2026 - Boston Trust Walden Corp filed a 13F-HR form disclosing ownership of 1,464 shares of McKesson Corporation (US:MCK) valued at $1,266,887 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 1,468 shares of McKesson Corporation. This represents a change in shares of -0.27% during the quarter. The current value of the position is $1,082,672 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)
2026-04-24 2026-03-31 13F MCKESSON COMMON STOCK 58155Q103 1,464 -4 -0.27 1,267 5.15 0.0062
2026-01-28 2025-12-31 13F MCKESSON COMMON STOCK 58155Q103 1,468 -12 -0.81 1,204 5.34 0.0091
2025-10-17 2025-09-30 13F MCKESSON COMMON STOCK 58155Q103 1,480 -127 -7.90 1,143 -2.89 0.0084
2025-07-28 2025-06-30 13F MCKESSON COMMON STOCK 58155Q103 1,607 -188 -10.47 1,178 -2.57 0.0084
2025-04-21 2025-03-31 13F MCKESSON COMMON STOCK 58155Q103 1,795 0 0.00 1,208 18.20 0.0088
2025-01-24 2024-12-31 13F MCKESSON COMMON STOCK 58155Q103 1,795 134 8.07 1,023 24.48 0.0072
2024-10-24 2024-09-30 13F MCKESSON COMMON STOCK 58155Q103 1,661 15 0.91 821 -14.57 0.0057
2024-07-19 2024-06-30 13F MCKESSON COMMON STOCK 58155Q103 1,646 0 0.00 961 8.83 0.0071
2024-04-22 2024-03-31 13F MCKESSON COMMON STOCK 58155Q103 1,646 0 0.00 884 15.88 0.0063
2024-01-24 2023-12-31 13F MCKESSON COMMON STOCK 58155Q103 1,646 -4 -0.24 762 6.28 0.0057
2023-10-18 2023-09-30 13F MCKESSON COMMON STOCK 58155Q103 1,650 0 0.00 718 1.70 0.0060
2023-07-24 2023-06-30 13F MCKESSON COMMON STOCK 58155Q103 1,650 -20 -1.20 705 18.69 0.0058
2023-04-19 2023-03-31 13F MCKESSON COMMON STOCK 58155Q103 1,670 0 0.00 595 -5.11 0.0051
2023-01-20 2022-12-31 13F MCKESSON COMMON STOCK 58155Q103 1,670 0 0.00 626 10.21 0.0055
2022-10-19 2022-09-30 13F MCKESSON COMMON STOCK 58155Q103 1,670 0 0.00 568 4.22 0.0056
2022-07-22 2022-06-30 13F MCKESSON COMMON STOCK 58155Q103 1,670 4 0.24 545 6.86 0.0051
2022-04-20 2022-03-31 13F MCKESSON COMMON STOCK 58155Q103 1,666 0 0.00 510 23.19 0.0042
2022-01-21 2021-12-31 13F MCKESSON COMMON STOCK 58155Q103 1,666 458 37.91 414 71.78 0.0033
2021-10-25 2021-09-30 13F MCKESSON COMMON STOCK 58155Q103 1,208 0 0.00 241 4.33 0.0021
2021-07-22 2021-06-30 13F MCKESSON COMMON STOCK 58155Q103 1,208 0 0.00 231 -2.12 0.0021
2021-04-21 2021-03-31 13F MCKESSON COMMON STOCK 58155Q103 1,208 0 0.00 236 12.38 0.0023
2021-01-15 2020-12-31 13F MCKESSON COMMON STOCK 58155Q103 1,208 1,208 210 0.0022
2018-04-13 2018-03-31 13F MCKESSON COMMON STOCK 58155Q103 0 -1,308 -100.00 0 -100.00
2018-01-29 2017-12-31 13F MCKESSON COMMON STOCK 58155Q103 1,308 -168 -11.38 204 -10.13 0.0030
2017-10-13 2017-09-30 13F MCKESSON COMMON STOCK 58155Q103 1,476 0 0.00 227 -6.58 0.0035
2017-07-19 2017-06-30 13F MCKESSON COMMON STOCK 58155Q103 1,476 0 0.00 243 10.96 0.0039
2017-04-24 2017-03-31 13F MCKESSON COMMON STOCK 58155Q103 1,476 -100 -6.35 219 -0.90 0.0034
2017-02-07 2016-12-31 13F/A-1 MCKESSON COMMON STOCK 58155Q103 1,576 175 12.49 221 -5.56 0.0035
2017-02-01 2016-12-31 13F MCKESSON COMMON STOCK 58155Q103 1,576 221
2016-10-17 2016-09-30 13F MCKESSON COMMON STOCK 58155Q103 1,401 0 0.00 234 -10.34 0.0039
2016-08-09 2016-06-30 13F MCKESSON COMMON STOCK 58155Q103 1,401 -100 -6.66 261 10.59 0.0045
2016-04-19 2016-03-31 13F MCKESSON COMMON STOCK 58155Q103 1,501 0 0.00 236 -20.27 0.0041
2016-01-21 2015-12-31 13F MCKESSON COMMON STOCK 58155Q103 1,501 0 0.00 296 6.47 0.0055
2015-10-29 2015-09-30 13F MCKESSON COMMON STOCK 58155Q103 1,501 0 0.00 278 -17.51 0.0046
2015-07-17 2015-06-30 13F MCKESSON COMMON STOCK 58155Q103 1,501 50 3.45 337 2.74 0.0051
2015-04-15 2015-03-31 13F MCKESSON COMMON STOCK 58155Q103 1,451 1,451 0.00 328 0.0049
2015-01-28 2014-12-31 13F MCKESSON COMMON STOCK 58155Q103 0 -1,501 -100.00 0 -100.00
2014-10-23 2014-09-30 13F MCKESSON COMMON STOCK 58155Q103 1,501 0 0.00 292 4.29 0.0045
2014-08-01 2014-06-30 13F MCKESSON COMMON STOCK 58155Q103 1,501 0 0.00 280 5.66 0.0041
2014-04-11 2014-03-31 13F MCKESSON COMMON STOCK 58155Q103 1,501 -100 -6.25 265 2.71 0.0039
2014-02-11 2013-12-31 13F MCKESSON COMMON STOCK 58155Q103 1,601 0 0.00 258 25.85 0.0038
2013-11-15 2013-09-30 13F MCKESSON COMMON STOCK 58155Q103 1,601 1,601 205 0.0031
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.