McKesson Corporation
MX ˙ BMV ˙ US58155Q1031
SecurityMX:MCK / McKesson Corporation
InstitutionFinancial Advisory Service, Inc.
Latest Disclosed Ownership870 shares
Latest Disclosed Value $ 713,666
Financial Advisory Service, Inc. ownership in MCK / McKesson Corporation

On February 18, 2026 - Financial Advisory Service, Inc. filed a 13F-HR form disclosing ownership of 870 shares of McKesson Corporation (MX:MCK) valued at $713,666 USD as of December 31, 2025. The entity filed a previous 13F-HR on October 29, 2025 disclosing 830 shares of McKesson Corporation. This represents a change in shares of 4.82% during the quarter.

Financial Advisory Service, Inc. has a history of taking positions in derivatives of the underlying security (MCK) in the form of stock options.

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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:MCK / McKesson Corporation Historical Put/Call Ratio
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)
2026-02-18 2025-12-31 13F MCKESSON COM 58155Q103 870 40 4.82 714 11.23 0.0461
2025-10-29 2025-09-30 13F MCKESSON COM 58155Q103 830 0 0.00 641 5.60 0.0434
2025-08-14 2025-06-30 13F MCKESSON COM 58155Q103 830 187 29.08 608 40.51 0.0450
2025-05-05 2025-03-31 13F MCKESSON COM 58155Q103 643 1 0.16 432 18.03 0.0353
2025-02-14 2024-12-31 13F MCKESSON COM 58155Q103 642 0 0.00 366 15.46 0.0307
2024-10-17 2024-09-30 13F MCKESSON COM 58155Q103 642 0 0.00 317 -15.24 0.0252
2024-07-29 2024-06-30 13F MCKESSON COM 58155Q103 642 61 10.50 375 20.26 0.0324
2024-04-29 2024-03-31 13F MCKESSON COM 58155Q103 581 2 0.35 312 16.48 0.0276
2024-01-23 2023-12-31 13F MCKESSON COM 58155Q103 579 579 268 0.0255
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-08-14 2025-06-30 13F MCKESSON COM Call 147 n/a n/a n/a
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.