McKesson Corporation
MX ˙ BMV ˙ US58155Q1031
SecurityMX:MCK / McKesson Corporation
InstitutionMontecito Bank & Trust
Latest Disclosed Ownership1,746 shares
Latest Disclosed Value $ 1,510,918
Montecito Bank & Trust reports 7.91% decrease in ownership of MCK / McKesson Corporation

On April 16, 2026 - Montecito Bank & Trust filed a 13F-HR form disclosing ownership of 1,746 shares of McKesson Corporation (MX:MCK) valued at $1,510,918 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 1,896 shares of McKesson Corporation. This represents a change in shares of -7.91% 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)
2026-04-16 2026-03-31 13F MCKESSON Equities 58155Q103 1,746 -150 -7.91 1,511 -2.89 0.2488
2026-01-09 2025-12-31 13F MCKESSON Equities 58155Q103 1,896 -19 -0.99 1,555 5.14 0.2479
2025-10-07 2025-09-30 13F MCKESSON Equities 58155Q103 1,915 -250 -11.55 1,479 1.51 0.2298
2025-04-17 2025-03-31 13F MCKESSON Equities 58155Q103 2,165 -86 -3.82 1,457 13.65 0.2579
2025-01-21 2024-12-31 13F MCKESSON Equities 58155Q103 2,251 -448 -16.60 1,283 -3.90 0.2222
2024-10-31 2024-09-30 13F MCKESSON Equities 58155Q103 2,699 147 5.76 1,334 -10.47 0.2273
2024-07-17 2024-06-30 13F MCKESSON Com 58155Q103 2,552 -75 -2.85 1,490 5.67 0.3032
2024-04-09 2024-03-31 13F MCKESSON Com 58155Q103 2,627 -528 -16.74 1,410 -3.42 0.2821
2024-01-05 2023-12-31 13F MCKESSON Com 58155Q103 3,155 15 0.48 1,461 6.96 0.3142
2023-10-16 2023-09-30 13F MCKESSON Com 58155Q103 3,140 277 9.68 1,365 11.61 0.3200
2023-07-25 2023-06-30 13F MCKESSON Com 58155Q103 2,863 -268 -8.56 1,223 9.78 0.2779
2023-04-25 2023-03-31 13F MCKESSON Com 58155Q103 3,131 -63 -1.97 1,115 111,300.00 0.2659
2023-01-20 2022-12-31 13F MCKESSON Com 58155Q103 3,194 -39 -1.21 1 -99.91 0.2904
2022-10-14 2022-09-30 13F MCKESSON Com 58155Q103 3,233 -178 -5.22 1,099 -1.26 0.2860
2022-08-01 2022-06-30 13F MCKESSON Com 58155Q103 3,411 -74 -2.12 1,113 4.31 0.2642
2022-04-22 2022-03-31 13F MCKESSON Com 58155Q103 3,485 -75 -2.11 1,067 20.56 0.1996
2022-01-25 2021-12-31 13F MCKESSON Com 58155Q103 3,560 -53 -1.47 885 22.75 0.1569
2021-10-28 2021-09-30 13F MCKESSON Com 58155Q103 3,613 -587 -13.98 721 -10.21 0.1401
2021-07-08 2021-06-30 13F MCKESSON Com 58155Q103 4,200 540 14.75 803 12.46 0.1541
2021-04-26 2021-03-31 13F MCKESSON Com 58155Q103 3,660 -23 -0.62 714 11.56 0.1481
2021-01-28 2020-12-31 13F MCKESSON Com 58155Q103 3,683 442 13.64 640 32.51 0.1403
2020-10-27 2020-09-30 13F MCKESSON Com 58155Q103 3,241 -76 -2.29 483 -5.11 0.1230
2020-07-17 2020-06-30 13F MCKESSON Com 58155Q103 3,317 -155 -4.46 509 8.53 0.1397
2020-04-23 2020-03-31 13F MCKESSON Com 58155Q103 3,472 59 1.73 469 -0.64 0.1536
2020-01-22 2019-12-31 13F MCKESSON Com 58155Q103 3,413 293 9.39 472 10.80 0.1267
2019-10-18 2019-09-30 13F MCKESSON Com 58155Q103 3,120 -601 -16.15 426 -14.97 0.1266
2019-07-05 2019-06-30 13F MCKESSON Com 58155Q103 3,721 -166 -4.27 501 10.11 0.1513
2019-04-05 2019-03-31 13F MCKESSON Com 58155Q103 3,887 24 0.62 455 6.81 0.1390
2019-02-05 2018-12-31 13F MCKESSON Com 58155Q103 3,863 71 1.87 426 -15.31 0.1472
2018-10-11 2018-09-30 13F MCKESSON Com 58155Q103 3,792 1,034 37.49 503 36.68 0.1501
2018-08-01 2018-06-30 13F MCKESSON Com 58155Q103 2,758 -40 -1.43 368 -6.60 0.1179
2018-04-23 2018-03-31 13F MCKESSON Com 58155Q103 2,798 157 5.94 394 -4.37 0.1290
2018-02-13 2017-12-31 13F/A-1 MCKESSON Com 58155Q103 2,641 153 6.15 412 7.85 0.1340
2017-10-23 2017-09-30 13F MCKESSON Common Stock 58155Q103 2,488 467 23.11 382 14.71 0.1323
2017-07-26 2017-06-30 13F MCKESSON Com 58155Q103 2,021 -99 -4.67 333 6.05 0.1198
2017-05-04 2017-03-31 13F MCKESSON Com 58155Q103 2,120 252 13.49 314 19.85 0.1147
2017-02-15 2016-12-31 13F MCKESSON Com 58155Q103 1,868 401 27.33 262 6.94 0.0914
2016-11-03 2016-09-30 13F MCKESSON Com 58155Q103 1,467 1,467 0.00 245 0.1007
2015-05-13 2015-03-31 13F MCKESSON COMMON STOCK 58155Q103 0 -1,026 -100.00 0 -100.00
2015-02-11 2014-12-31 13F MCKESSON COMMON STOCK 58155Q103 1,026 1,026 213 0.1120
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.