McKesson Corporation
MX ˙ BMV ˙ US58155Q1031
SecurityMX:MCK / McKesson Corporation
InstitutionGabelli Funds Llc
Latest Disclosed Ownership7,301 shares
Latest Disclosed Value $ 6,317,993
Gabelli Funds Llc reports 17.22% decrease in ownership of MCK / McKesson Corporation

On May 14, 2026 - Gabelli Funds Llc filed a 13F-HR form disclosing ownership of 7,301 shares of McKesson Corporation (MX:MCK) valued at $6,317,993 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 8,820 shares of McKesson Corporation. This represents a change in shares of -17.22% 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)
2026-05-14 2026-03-31 13F MCKESSON EQUITY 58155Q103 7,301 -1,519 -17.22 6,318 -12.68 0.0427
2026-02-05 2025-12-31 13F MCKESSON EQUITY 58155Q103 8,820 -815 -8.46 7,235 -2.81 0.0490
2025-11-12 2025-09-30 13F MCKESSON EQUITY 58155Q103 9,635 -460 -4.56 7,443 0.62 0.0504
2025-08-13 2025-06-30 13F MCKESSON EQUITY 58155Q103 10,095 -535 -5.03 7,397 3.41 0.0525
2025-05-14 2025-03-31 13F MCKESSON EQUITY 58155Q103 10,630 -6,055 -36.29 7,154 -24.77 0.0545
2025-02-13 2024-12-31 13F MCKESSON EQUITY 58155Q103 16,685 1,185 7.65 9,509 24.08 0.0714
2024-11-13 2024-09-30 13F MCKESSON EQUITY 58155Q103 15,500 0 0.00 7,664 -15.34 0.0552
2024-08-13 2024-06-30 13F MCKESSON EQUITY 58155Q103 15,500 -3,500 -18.42 9,053 -11.25 0.0688
2024-05-14 2024-03-31 13F MCKESSON EQUITY 58155Q103 19,000 0 0.00 10,200 15.96 0.0751
2024-02-13 2023-12-31 13F MCKESSON EQUITY 58155Q103 19,000 -5,000 -20.83 8,797 -15.71 0.0677
2023-11-08 2023-09-30 13F MCKESSON EQUITY 58155Q103 24,000 0 0.00 10,436 1.76 0.0847
2023-08-10 2023-06-30 13F MCKESSON EQUITY 58155Q103 24,000 0 0.00 10,255 20.01 0.0777
2023-05-12 2023-03-31 13F MCKESSON EQUITY 58155Q103 24,000 0 0.00 8,545 -5.08 0.0648
2023-02-13 2022-12-31 13F MCKESSON EQUITY 58155Q103 24,000 -6,262 -20.69 9,003 -12.47 0.0700
2022-11-14 2022-09-30 13F/A-1 MCKESSON HBOC COM 58155Q103 30,262 0 0.00 10,285 4.18 0.0848
2022-11-10 2022-09-30 13F MCKESSON HBOC COM 58155Q103 30,262 0 10,285 0.0848
2022-08-12 2022-06-30 13F MCKESSON HBOC COM 58155Q103 30,262 -9,488 -23.87 9,872 -18.88 0.0758
2022-05-18 2022-03-31 13F/A-1 MCKESSON HBOC COM 58155Q103 39,750 0 0.00 12,169 23.16 0.0799
2022-05-13 2022-03-31 13F MCKESSON HBOC COM 58155Q103 39,750 0 12,169 0.0821
2022-02-11 2021-12-31 13F MCKESSON HBOC COM 58155Q103 39,750 0 0.00 9,881 24.68 0.0624
2021-11-12 2021-09-30 13F MCKESSON HBOC COM 58155Q103 39,750 0 0.00 7,925 4.25 0.0525
2021-08-13 2021-06-30 13F MCKESSON HBOC COM 58155Q103 39,750 -2,750 -6.47 7,602 -8.29 0.0484
2021-05-14 2021-03-31 13F MCKESSON HBOC COM 58155Q103 42,500 0 0.00 8,289 12.13 0.0556
2021-02-05 2020-12-31 13F MCKESSON HBOC COM 58155Q103 42,500 0 0.00 7,392 16.78 0.0527
2020-11-06 2020-09-30 13F MCKESSON HBOC COM 58155Q103 42,500 -2,500 -5.56 6,330 -8.31 0.0493
2020-08-13 2020-06-30 13F MCKESSON HBOC COM 58155Q103 45,000 0 0.00 6,904 13.42 0.0563
2020-05-14 2020-03-31 13F MCKESSON HBOC COM 58155Q103 45,000 0 0.00 6,087 -2.20 0.0542
2020-02-14 2019-12-31 13F MCKESSON HBOC COM 58155Q103 45,000 0 0.00 6,224 1.20 0.0403
2019-11-01 2019-09-30 13F MCKESSON HBOC COM 58155Q103 45,000 0 0.00 6,150 1.69 0.0406
2019-08-02 2019-06-30 13F MCKESSON HBOC COM 58155Q103 45,000 -1,000 -2.17 6,048 12.31 0.0388
2019-05-02 2019-03-31 13F MCKESSON HBOC COM 58155Q103 46,000 0 0.00 5,385 5.96 0.0339
2019-01-30 2018-12-31 13F MCKESSON HBOC COM 58155Q103 46,000 1,000 2.22 5,082 -14.86 0.0348
2018-11-02 2018-09-30 13F MCKESSON HBOC COM 58155Q103 45,000 0 0.00 5,969 -0.57 0.0342
2018-08-10 2018-06-30 13F MCKESSON HBOC COM 58155Q103 45,000 -10,000 -18.18 6,003 -22.52 0.0356
2018-05-09 2018-03-31 13F MCKESSON HBOC COM 58155Q103 55,000 0 0.00 7,748 -9.67 0.0462
2018-02-02 2017-12-31 13F MCKESSON HBOC COM 58155Q103 55,000 0 0.00 8,577 1.51 0.0494
2017-11-01 2017-09-30 13F MCKESSON HBOC COM 58155Q103 55,000 0 0.00 8,449 -6.64 0.0484
2017-08-03 2017-06-30 13F MCKESSON HBOC COM 58155Q103 55,000 -5,000 -8.33 9,050 1.73 0.0538
2017-05-04 2017-03-31 13F MCKESSON HBOC COM 58155Q103 60,000 0 0.00 8,896 5.57 0.0524
2017-02-10 2016-12-31 13F MCKESSON HBOC COM 58155Q103 60,000 0 0.00 8,427 -15.77 0.0499
2016-11-10 2016-09-30 13F MCKESSON HBOC COM 58155Q103 60,000 0 0.00 10,005 -10.66 0.0594
2016-08-04 2016-06-30 13F MCKESSON HBOC COM 58155Q103 60,000 -14,000 -18.92 11,199 -3.76 0.0661
2016-05-05 2016-03-31 13F MCKESSON HBOC COM 58155Q103 74,000 -3,200 -4.15 11,637 -23.57 0.0702
2016-02-05 2015-12-31 13F MCKESSON HBOC COM 58155Q103 77,200 -23,700 -23.49 15,226 -18.45 0.0922
2015-10-23 2015-09-30 13F MCKESSON HBOC COM 58155Q103 100,900 0 0.00 18,670 -17.69 0.1110
2015-08-05 2015-06-30 13F MCKESSON HBOC COM 58155Q103 100,900 0 0.00 22,683 -0.62 0.1187
2015-05-01 2015-03-31 13F MCKESSON HBOC COM 58155Q103 100,900 1,000 1.00 22,824 10.06 0.1158
2015-02-05 2014-12-31 13F MCKESSON HBOC COM 58155Q103 99,900 3,000 3.10 20,737 9.93 0.1008
2014-10-30 2014-09-30 13F MCKESSON HBOC COM 58155Q103 96,900 5,500 6.02 18,864 10.83 0.0957
2014-08-06 2014-06-30 13F MCKESSON HBOC COM 58155Q103 91,400 2,400 2.70 17,020 8.30 0.0841
2014-05-16 2014-03-31 13F/A-1 MCKESSON HBOC COM 58155Q103 89,000 38,500 76.24 15,715 92.80 0.0816
2014-05-02 2014-03-31 13F MCKESSON HBOC COM 58155Q103 89,000 15,715
2014-02-07 2013-12-31 13F MCKESSON HBOC COM 58155Q103 50,500 -12,500 -19.84 8,151 0.84 0.0434
2013-11-07 2013-09-30 13F MCKESSON HBOC COM 58155Q103 63,000 0 0.00 8,083 12.05 0.0460
2013-08-02 2013-06-30 13F/A-1 MCKESSON HBOC COM 58155Q103 63,000 63,000 7,214 0.0438
2013-08-01 2013-06-30 13F MCKESSON HBOC COM 58155Q103 63,000 7,214 0.0438
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.