Quest Diagnostics Inc. (DGX) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for DGX. 13F holdings as of 2026-06-30.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|
| Vanguard | 14,553,517 | $3.1B | INCREASED |
| BlackRock | 9,275,411 | $2.0B | INCREASED |
| State Street | 5,516,643 | $1.2B | INCREASED |
| T. Rowe Price | 5,444,986 | $1.2B | DECREASED |
| Boston Partners | 4,744,473 | $1.0B | INCREASED |
Recent Insider Trades
| Insider | Type | Shares | Value | Date |
|---|
| E. J. Davis (CEO and President) | SELL | 10,000 | $2M | 2026-09-01 |
| Michael E Prevoznik (SVP & General Counsel) | GIFT | 1,000 | | 2026-08-28 |
| Michael E Prevoznik (SVP & General Counsel) | EXERCISE | 22,677 | $3M | 2026-08-28 |
| Michael E Prevoznik (SVP & General Counsel) | SELL | 430 | $105K | 2026-08-28 |
| Michael E Prevoznik (SVP & General Counsel) | SELL | 6,237 | $2M | 2026-08-28 |
Recent Congressional Trades
| Member | Type | Amount | Date |
|---|
| Carol Devine Miller | SALE | $15,001 - $50,000 | 2025-03-10 |
| Carol Devine Miller | SALE | $15,001 - $50,000 | 2025-03-09 |
| Julie Johnson (Democrat) | SALE | $1,001 - $15,000 | 2025-10-30 |
Full institutional holdings, insider history, and congressional trades for Quest Diagnostics Inc. on SentiSense.