McKesson Corporation (MCK) ownership: Top institutional holder: VANGUARD GROUP INC ($9.93B). Insider activity: Net Seller (1 buys, 19 sells). 10 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| VANGUARD GROUP INC | 12104719.00 | $9.93B | 2025-12-31 |
| BlackRock, Inc. | 11430884.00 | $9.89B | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 7960724.00 | $6.89B | 2026-03-31 |
| STATE STREET CORP | 5731756.00 | $4.96B | 2026-03-31 |
| FMR LLC | 3603423.00 | $3.12B | 2026-03-31 |
| JPMORGAN CHASE & CO | 3268340.00 | $2.81B | 2026-03-31 |
| FRANKLIN RESOURCES INC | 3063145.00 | $2.65B | 2026-03-31 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 2900233.00 | $2.53B | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-17 | |
| Sell | null | 2026-06-09 | |
| Sell | null | 2026-06-05 | |
| Sell | null | 2026-06-02 | |
| Sell | null | 2026-06-01 | |
| Sell | null | 2026-06-01 | |
| Sell | null | 2026-06-01 | |
| Sell | null | 2026-06-01 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.