Quest Diagnostics Incorporated · NYSE:DGX
Quest Diagnostics Incorporated shareholders
As of Jun 30, 2026, 1,086 institutions reported holding Quest Diagnostics Incorporated, 95.1% of its shares. Largest: Vanguard, BlackRock and State Street. New holders, exits, insiders and big stakes, each with its filing.
| Holder | Shares | % of Quest Diagnostics Incorporated | Change | Filed |
|---|---|---|---|---|
| Vanguard | 14.6M | 13.2% | +165K | Aug 13, 2026 |
| BlackRock | 9.28M | 8.4% | +103K | Aug 7, 2026 |
| State Street | 5.52M | 5.0% | +136K | Aug 7, 2026 |
| T. Rowe Price | 5.44M | 4.9% | −853K | Aug 14, 2026 |
| Boston Partners | 4.74M | 4.3% | +732K | Aug 4, 2026 |
| JPMorgan | 3.52M | 3.2% | −326K | Aug 12, 2026 |
| Geode Capital | 3.14M | 2.8% | +51,565 | Aug 12, 2026 |
| Morgan Stanley | 2.46M | 2.2% | −19,223 | Aug 13, 2026 |
| EdgePoint Investment Group Inc. | 2.25M | 2.0% | +3,699 | Aug 14, 2026 |
| Dimensional | 1.99M | 1.8% | +38,513 | Aug 11, 2026 |