🕵️ Quest Diagnostics Inc ($DGX)
SEC insider & ownership activity, last 12 months · CIK 1022079 · every row links its SEC filing
Over the last 12 months insiders sold $42.6M with no open-market buying against it. J. E. Davis sold $17.1M through a 10b5-1 trading plan in 6 lots (Nov–Sep). No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 8 sellers, $42.6M (34 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| J. E. Davis | 0 | – | 6 | $17.1M | Sep 1, 2026 |
| Michael E. Prevoznik | 0 | – | 10 | $12.0M | Aug 28, 2026 |
| Catherine T. Doherty | 0 | – | 8 | $7.0M | Mar 5, 2026 |
| Kuppusamy Karthik | 0 | – | 2 | $2.2M | Jun 4, 2026 |
| Plewman Patrick | 0 | – | 4 | $2.0M | Mar 5, 2026 |
| Mark E. Delaney | 0 | – | 2 | $1.9M | Jul 28, 2026 |
| Gary M. Pfeiffer | 0 | – | 1 | $270K | Oct 22, 2025 |
| Vicky B. Gregg | 0 | – | 1 | $240K | Nov 25, 2025 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| BlackRock, Inc. | 8.4% | 13G | Apr 17, 2025 | filing ↗ | |
| Vanguard Capital Management | 7.5% | 13G | Apr 30, 2026 | filing ↗ | |
| Vanguard Portfolio Management | 5.5% | 13G | Apr 29, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| J. E. Davis | $2.4M | Sep 1, 2026 | filing ↗ |
| Michael E. Prevoznik | $5.5M | Aug 28, 2026 | filing ↗ |
| Mark E. Delaney | $376K | Jul 28, 2026 | filing ↗ |
| Kuppusamy Karthik | $1.6M | Jun 4, 2026 | filing ↗ |
| J. E. Davis | $1.9M | Jun 1, 2026 | filing ↗ |
| Michael E. Prevoznik | $800K | Mar 5, 2026 | filing ↗ |
| Catherine T. Doherty | $1.1M | Mar 5, 2026 | filing ↗ |
| Plewman Patrick | $589K | Mar 5, 2026 | filing ↗ |
| Catherine T. Doherty | $131K | Mar 3, 2026 | filing ↗ |
| Michael E. Prevoznik | $109K | Mar 3, 2026 | filing ↗ |
| Plewman Patrick | $85K | Mar 3, 2026 | filing ↗ |
| J. E. Davis | $2.1M | Mar 2, 2026 | filing ↗ |
| Plewman Patrick | $196K | Feb 19, 2026 | filing ↗ |
| Catherine T. Doherty | $294K | Feb 19, 2026 | filing ↗ |
| Michael E. Prevoznik | $228K | Feb 19, 2026 | filing ↗ |
| Catherine T. Doherty | $5.4M | Feb 13, 2026 | filing ↗ |
| Plewman Patrick | $1.2M | Feb 10, 2026 | filing ↗ |
| J. E. Davis | $10.6M | Nov 25, 2025 | filing ↗ |
| Vicky B. Gregg | $240K | Nov 25, 2025 | filing ↗ |
| Mark E. Delaney | $1.5M | Nov 18, 2025 | filing ↗ |
| Gary M. Pfeiffer | $270K | Oct 22, 2025 | filing ↗ |
| Michael E. Prevoznik | $43K | Sep 26, 2025 | filing ↗ |
| Michael E. Prevoznik | $33K | Sep 24, 2025 | filing ↗ |
| Michael E. Prevoznik | $5.3M | Sep 23, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Jul 23, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 23, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 20, 2026 | filing ↗ |
| Material agreement (1.01) | May 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 6, 2026 | filing ↗ |
| Other events (8.01) | Apr 27, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 27, 2026 | filing ↗ |
| Earnings (2.02) | Apr 21, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 21, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 9, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 9, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 9, 2026 | filing ↗ |
| Earnings (2.02) | Feb 10, 2026 | filing ↗ |
| Other events (8.01) | Feb 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 10, 2026 | filing ↗ |
| Earnings (2.02) | Jan 12, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 12, 2026 | filing ↗ |
| Earnings (2.02) | Oct 21, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 21, 2025 | filing ↗ |