Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in MCK held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 11.4M | $9.89B | -0.5% | 9.510% | 0.17% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 8.0M | $6.89B | — | 6.623% | 0.17% |
| 3 | STATE STREET CORP | 5.7M | $4.96B | -0.8% | 4.768% | 0.17% |
| 4 | FMR LLC | 3.6M | $3.12B | +12.4% | 2.998% | 0.17% |
| 5 | FRANKLIN RESOURCES INC | 3.1M | $2.65B | +8.4% | 2.548% | 0.65% |
| 6 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 2.9M | $2.53B | -15.8% | 2.413% | 0.85% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 2.9M | $2.50B | +1.6% | 2.416% | 0.16% |
| 8 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.9M | $2.49B | — | 2.398% | 0.13% |
| 9 | MORGAN STANLEY | 2.3M | $1.99B | -3.8% | 1.913% | 0.12% |
| 10 | ALLIANCEBERNSTEIN L.P. | 2.2M | $1.84B | -9.9% | 1.864% | 0.60% |
| 11 | BANK OF AMERICA CORP /DE/ | 1.5M | $1.33B | +2.4% | 1.280% | 0.10% |
| 12 | Invesco Ltd. | 1.5M | $1.29B | +41.7% | 1.241% | 0.20% |
| 13 | NORTHERN TRUST CORP | 1.5M | $1.27B | -1.9% | 1.216% | 0.17% |
| 14 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.3M | $1.14B | -4.7% | 1.092% | 0.61% |
| 15 | GOLDMAN SACHS GROUP INC | 1.3M | $1.13B | +40.6% | 1.086% | 0.13% |
| 16 | ROYAL BANK OF CANADA | 1.3M | $1.11B | -11.5% | 1.067% | 0.19% |
| 17 | Boston Partners | 1.2M | $1.00B | -6.1% | 0.961% | 1.05% |
| 18 | DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt | 1.0M | $906.1M | +30.1% | 0.871% | 0.89% |
| 19 | Swedbank AB | 1.0M | $870.2M | +13.5% | 0.837% | 0.91% |
| 20 | NORDEA INVESTMENT MANAGEMENT AB | 988K | $841.9M | -7.8% | 0.822% | 0.79% |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 945K | $817.7M | +1.1% | 0.786% | 0.12% |
| 22 | WCM INVESTMENT MANAGEMENT, LLC | 932K | $801.8M | -1.3% | 0.775% | 1.83% |
| 23 | Legal & General Group Plc | 917K | $793.3M | +2.6% | 0.763% | 0.18% |
| 24 | AQR CAPITAL MANAGEMENT LLC | 907K | $784.2M | -1.2% | 0.755% | 0.36% |
| 25 | UBS ASSET MANAGEMENT AMERICAS INC | 893K | $772.6M | -16.0% | 0.743% | 0.16% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in MCK — a direct measure of their conviction.
Filings activity in MCK during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 1,985 | +2.1% | 90.90% | +0.40 pp | $85.67B | +0.4% |
| Q4 2025 | 1,945 | +9.8% | 90.50% | +7.18 pp | $85.29B | +8.6% |
| Q3 2025 | 1,771 | +1.3% | 83.32% | +2.81 pp | $78.52B | +3.5% |
| Q2 2025 | 1,748 | +3.1% | 80.51% | +9.42 pp | $75.88B | +13% |
| Q1 2025 | 1,696 | +6.7% | 71.09% | +10.10 pp | $67.00B | +17% |
| Q4 2024 | 1,590 | +6.9% | 60.99% | +8.87 pp | $57.48B | +17% |
| Q3 2024 | 1,488 | 4.9% | 52.12% | 56.15 pp | $49.12B | 52% |
| Q2 2024 | 1,564 | — | 108.27% | — | $102.04B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying MCK stock.
Based on Q1 2026 13F filings, institutional ownership of McKesson Corporation stands at 90.9%, held across 1,985 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of MCK, with approximately 11,430,884 shares worth $9.89B as of Q1 2026.
No marquee "smart money" managers (Berkshire, Burry, ARK, Tiger Global, Pershing Square, Baupost, etc.) currently appear among the top 25 institutional holders of MCK.
Our composite Smart Money Score for MCK is 49 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
216 institutions opened new positions in MCK during Q1 2026, while 176 fully exited. 1,347 added to existing positions and 416 trimmed.
MCK institutional ownership rose by 0.40 percentage points quarter-over-quarter, with a net change of +40 holders.
The top 10 institutions account for 45.4% of all reported 13F value in MCK, and the top 25 account for 62.7%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
McKesson Corporation (MCK) Institutional Ownership