McKesson Corporation
MX ˙ BMV ˙ US58155Q1031
SecurityMX:MCK / McKesson Corporation
InstitutionThomas Story & Son Llc
Latest Disclosed Ownership1,345 shares
Latest Disclosed Value $ 1,163,909
Thomas Story & Son Llc reports 3.93% decrease in ownership of MCK / McKesson Corporation

On May 6, 2026 - Thomas Story & Son Llc filed a 13F-HR form disclosing ownership of 1,345 shares of McKesson Corporation (MX:MCK) valued at $1,163,909 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 1,400 shares of McKesson Corporation. This represents a change in shares of -3.93% 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)
2026-05-06 2026-03-31 13F MCKESSON CORP COM Stock 58155Q103 1,345 -55 -3.93 1,164 1.31 0.4467
2026-01-26 2025-12-31 13F MCKESSON CORP COM Stock 58155Q103 1,400 0 0.00 1,148 6.20 0.4268
2025-10-14 2025-09-30 13F MCKESSON CORP COM Stock 58155Q103 1,400 0 0.00 1,082 5.46 0.3976
2025-08-11 2025-06-30 13F MCKESSON CORP COM Stock 58155Q103 1,400 0 0.00 1,026 8.81 0.3943
2025-05-13 2025-03-31 13F MCKESSON CORP COM Stock 58155Q103 1,400 0 0.00 942 0.3667
2025-01-29 2024-12-31 13F McKesson cs 58155Q103 1,400 0 0.00 1 0.3343
2024-11-01 2024-09-30 13F McKesson cs 58155Q103 1,400 0 0.00 1 0.2822
2024-08-02 2024-06-30 13F McKesson cs 58155Q103 1,400 0 0.00 1 0.3531
2024-04-30 2024-03-31 13F McKesson cs 58155Q103 1,400 0 0.00 1 0.3176
2024-03-01 2023-12-31 13F McKesson cs 58155Q103 1,400 0 0.00 1 0.3044
2023-11-06 2023-09-30 13F McKesson cs 58155Q103 1,400 0 0.00 1 0.2969
2023-08-04 2023-06-30 13F McKesson cs 58155Q103 1,400 0 0.00 1 0.2730
2023-04-24 2023-03-31 13F McKesson cs 58155Q103 1,400 0 0.00 0 0.2413
2023-01-30 2022-12-31 13F McKesson cs 58155Q103 1,400 0 0.00 1 -100.00 0.2670
2022-11-01 2022-09-30 13F McKesson cs 58155Q103 1,400 0 0.00 476 4.16 0.2505
2022-08-11 2022-06-30 13F McKesson cs 58155Q103 1,400 0 0.00 457 6.53 0.2172
2022-05-02 2022-03-31 13F McKesson cs 58155Q103 1,400 0 0.00 429 23.28 0.1698
2022-02-04 2021-12-31 13F McKesson cs 58155Q103 1,400 0 0.00 348 24.73 0.1355
2021-10-22 2021-09-30 13F McKesson cs 58155Q103 1,400 0 0.00 279 4.10 0.1142
2021-08-02 2021-06-30 13F McKesson cs 58155Q103 1,400 0 0.00 268 -1.83 0.0999
2021-04-30 2021-03-31 13F McKesson cs 58155Q103 1,400 0 0.00 273 12.35 0.1030
2021-01-27 2020-12-31 13F McKesson cs 58155Q103 1,400 0 0.00 243 16.27 0.0986
2020-10-23 2020-09-30 13F McKesson cs 58155Q103 1,400 0 0.00 209 -2.79 0.0934
2020-08-03 2020-06-30 13F McKesson cs 58155Q103 1,400 1,400 215 0.1023
2018-10-19 2018-09-30 13F McKesson cs 58155Q103 0 -1,500 -100.00 0 -100.00
2018-08-03 2018-06-30 13F McKesson cs 58155Q103 1,500 0 0.00 200 -5.21 0.1160
2018-05-04 2018-03-31 13F McKesson cs 58155Q103 1,500 0 0.00 211 -9.83 0.1238
2018-01-26 2017-12-31 13F McKesson cs 58155Q103 1,500 0 0.00 234 1.74 0.1338
2017-11-02 2017-09-30 13F McKesson cs 58155Q103 1,500 0 0.00 230 -6.88 0.1241
2017-08-04 2017-06-30 13F McKesson cs 58155Q103 1,500 0 0.00 247 11.26 0.1461
2017-04-28 2017-03-31 13F McKesson cs 58155Q103 1,500 0 0.00 222 5.21 0.1264
2017-01-27 2016-12-31 13F McKesson cs 58155Q103 1,500 0 0.00 211 -15.60 0.1268
2016-10-28 2016-09-30 13F McKesson cs 58155Q103 1,500 0 0.00 250 -10.71 0.1535
2016-08-05 2016-06-30 13F McKesson cs 58155Q103 1,500 0 0.00 280 18.64 0.1734
2016-05-02 2016-03-31 13F McKesson cs 58155Q103 1,500 0 0.00 236 -20.27 0.1439
2016-02-05 2015-12-31 13F McKesson cs 58155Q103 1,500 0 0.00 296 6.47 0.1846
2015-10-23 2015-09-30 13F McKesson cs 58155Q103 1,500 0 0.00 278 -17.51 0.1817
2015-08-07 2015-06-30 13F/A-1 McKesson cs 58155Q103 1,500 0 0.00 337 -0.59 0.2118
2015-08-07 2015-06-30 13F McKesson cs 58155Q103 1,500 337
2015-05-11 2015-03-31 13F McKesson cs 58155Q103 1,500 0 0.00 339 9.00 0.2136
2015-01-23 2014-12-31 13F McKesson cs 58155Q103 1,500 0 0.00 311 6.51 0.1863
2014-10-24 2014-09-30 13F McKesson cs 58155Q103 1,500 0 0.00 292 4.66 0.1824
2014-08-01 2014-06-30 13F McKesson cs 58155Q103 1,500 0 0.00 279 5.28 0.1719
2014-04-28 2014-03-31 13F McKesson cs 58155Q103 1,500 -100 -6.25 265 2.71 0.1444
2014-01-22 2013-12-31 13F McKesson cs 58155Q103 1,600 0 0.00 258 25.85 0.1415
2013-11-01 2013-09-30 13F McKesson cs 58155Q103 1,600 1,600 205 0.1270
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.