Quest Diagnostics Incorporated (DGX) Insider Trading
Over the last 3 months, DGX insiders made 0 open-market buys and 3 sales, a net sale of -$3.9M (SEC Form 4). Over the last 6 months, 799 institutions increased and 807 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
3
Net (3m)
-$3.9M
Insider trades by month Buys Sells
Oct
Nov
Feb
Mar
Jun
Jul
Context3-month price +25%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jul 29, 2026 | DELANEY MARK Eofficer: SVP & Chief Commercial Officer | Sell | 1,600 | $235.18 |
| Jul 27, 2026 | SAMAD SAMofficer: Executive Vice President & CFO | Grant | 102 | $206.81 |
| Jul 27, 2026 | Gregg Vicky Bdirector | Grant | 72 | $206.81 |
| Jul 2, 2026 | WENTWORTH TIMOTHY Cdirector | Grant | 144 | — |
| Jun 8, 2026 | KUPPUSAMY KARTHIKofficer: SVP, Clinical Solutions | Option | 4,827 | $121.81 |
| Jun 8, 2026 | KUPPUSAMY KARTHIKofficer: SVP, Clinical Solutions | Option | 3,320 | $127.72 |
| Jun 8, 2026 | KUPPUSAMY KARTHIKofficer: SVP, Clinical Solutions | Sell | 8,147 | $200.00 |
| Jun 2, 2026 | Davis J. E.director, officer: CEO and President | Sell | 10,000 | $194.14 |
| May 21, 2026 | MORRISON DENISE Mdirector | Grant | 1,142 | — |
| May 21, 2026 | Doi Traceydirector | Grant | 1,142 | — |
| May 21, 2026 | WENTWORTH TIMOTHY Cdirector | Grant | 1,142 | — |
| May 21, 2026 | MAIN TIMOTHY Ldirector | Grant | 1,142 | — |
| May 21, 2026 | Diaz Luisdirector | Grant | 1,142 | — |
| May 21, 2026 | Lassiter Wright IIIdirector | Grant | 1,142 | — |
| May 21, 2026 | CARTER ROBERT Bdirector | Grant | 1,142 | — |
| May 21, 2026 | PFEIFFER GARY Mdirector | Grant | 1,142 | — |
| May 21, 2026 | Gregg Vicky Bdirector | Grant | 1,142 | — |
| May 21, 2026 | RING TIMOTHY Mdirector | Grant | 1,142 | — |
| Apr 24, 2026 | Gregg Vicky Bdirector | Grant | 68 | $194.70 |
| Apr 24, 2026 | SAMAD SAMofficer: Executive Vice President & CFO | Grant | 108 | $194.70 |
| Apr 2, 2026 | WENTWORTH TIMOTHY Cdirector | Grant | 198 | — |
| Mar 11, 2026 | WENTWORTH TIMOTHY Cdirector | Grant | 215 | — |
| Mar 6, 2026 | Plewman Patrickofficer: SVP for Diagnostic Services | Grant | 5,682 | $204.86 |
| Mar 6, 2026 | Plewman Patrickofficer: SVP for Diagnostic Services | Sell | 2,855 | $206.21 |
| Mar 6, 2026 | Davis J. E.director, officer: CEO and President | Tax | 26,414 | $204.86 |
| Mar 6, 2026 | Plewman Patrickofficer: SVP for Diagnostic Services | Tax | 2,827 | $204.86 |
| Mar 6, 2026 | Deppe Michael Jofficer: SVP, Corp. Controller & CAO | Tax | 750 | $204.86 |
| Mar 6, 2026 | Davis J. E.director, officer: CEO and President | Grant | 51,652 | $204.86 |
| Mar 6, 2026 | Doherty Catherine T.officer: EVP, Regional Businesses | Grant | 11,364 | $204.86 |
| Mar 6, 2026 | SAMAD SAMofficer: Executive Vice President & CFO | Tax | 7,720 | $204.86 |
Source: DGX SEC Form 4 filings, latest Jul 29, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their DGX positions over the last 6 months (SEC Form 13F).
Increased
799
New positions
288
Reduced
807
Sold out
147
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Reduced | 9.5M | Feb 12, 2026 |
| BlackRock, Inc. | Increased | 9.3M | Aug 7, 2026 |
| BLACKROCK, INC. | Reduced | 9.2M | May 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 7.1M | May 15, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 6.3M | May 15, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | 6.3M | Feb 17, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 6.1M | May 8, 2026 |
| STATE STREET CORP | Increased | 5.5M | Aug 7, 2026 |
| STATE STREET CORP | Increased | 5.4M | Feb 13, 2026 |
| STATE STREET CORP | Reduced | 5.4M | May 15, 2026 |
| Boston Partners | Increased | 4.7M | Aug 4, 2026 |
| JPMORGAN CHASE & CO | Reduced | 4.1M | Feb 11, 2026 |
| BOSTON PARTNERS | Increased | 4.0M | May 11, 2026 |
| BOSTON PARTNERS | Reduced | 3.9M | Feb 13, 2026 |
| JPMORGAN CHASE & CO | Reduced | 3.8M | May 13, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.