DGX
insider transactionsQUEST DIAGNOSTICS INC — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 365d
-80.0K
0 buy · 80.0K sell
Net value · 365d
-$16.4M
$0 in · $16.4M out
Sentiment · 365d
Net selling
0% buying · 100% selling
Open-market trades · 365d
19
0 buy · 80.0K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Exercise·M
SVP, Clinical Solutions · 10b5-1
$588.0K
4.8K sh · $121.81
Own New
-
Exercise·M
SVP, Clinical Solutions · 10b5-1
$424.0K
3.3K sh · $127.73
Own New
-
Sell·S
SVP, Clinical Solutions · 10b5-1
$1.6M
8.1K sh · $200.00
Own -38%
-
Exercise·M
SVP, Clinical Solutions · 10b5-1
$588.0K
4.8K sh · $121.81
Own +29%
-
Exercise·M
SVP, Clinical Solutions · 10b5-1
$424.0K
3.3K sh · $127.73
Own +25%
-
Sell·S
E. J. Davis KEY
CEO and President · 10b5-1
$1.9M
10.0K sh · $194.14
Own -7%
-
Grant·A
Director
$0
1.1K sh
Own +529%
-
Grant·A
Director
$0
1.1K sh
Own +4%
-
Grant·A
Director
$0
1.1K sh
Own +4%
-
Grant·A
Director
$0
1.1K sh
Own +11%
-
Grant·A
Director
$0
1.1K sh
Own +4%
-
Grant·A
Director
$0
1.1K sh
Own +12%
-
Grant·A
Director
$0
1.1K sh
Own +7%
-
Grant·A
Director
$0
1.1K sh
Own +17%
-
Grant·A
Director
$0
1.1K sh
Own +28%
-
Grant·A
Director
$0
1.1K sh
Own +42%
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Grant·A
Sam Samad KEY
Executive Vice President & CFO
$21.0K
108 sh · $194.70
Own +0%
-
Other·L
SVP for Diagnostic Services
$9.5K
49 sh · $194.70
-
Other·L
Director
$1.2K
6 sh · $194.70
-
Other·L
SVP, Clinical Solutions
$7.6K
39 sh · $194.70
-
Grant·A
Director
$13.2K
68 sh · $194.70
Own +0%
-
Other·L
SVP & Chief Commercial Officer
$7.2K
37 sh · $194.70
-
Other·L
Director
$1.4K
7 sh · $194.70
-
Grant·A
Director
$0
198 sh
Own New
-
Grant·A
Director
$0
215 sh
Own New
-
Sell·S
SVP for Diagnostic Services · 10b5-1
$588.7K
2.9K sh · $206.21
Own -16%
-
Sell·S
SVP & General Counsel · 10b5-1
$799.7K
3.9K sh · $206.21
Own -9%
-
Sell·S
EVP, Regional Businesses · 10b5-1
$1.1M
5.6K sh · $206.21
Own -8%
-
Other·F
Sam Samad KEY
Executive Vice President & CFO
$1.6M
7.7K sh · $204.86
Own -19%
-
Grant·A
Sam Samad KEY
Executive Vice President & CFO
$2.9M
13.9K sh · $204.86
Own +52%
-
Other·F
SVP for Diagnostic Services · 10b5-1
$579.1K
2.8K sh · $204.86
Own -14%
-
Grant·A
SVP for Diagnostic Services · 10b5-1
$1.2M
5.7K sh · $204.86
Own +37%
-
Other·F
SVP & General Counsel · 10b5-1
$687.1K
3.4K sh · $204.86
Own -7%
-
Grant·A
SVP & General Counsel · 10b5-1
$1.5M
7.2K sh · $204.86
Own +19%
-
Sell·S
SVP, Clinical Solutions
$538.4K
2.6K sh · $204.86
Own -16%
-
Grant·A
SVP, Clinical Solutions
$1.3M
6.2K sh · $204.86
Own +63%
-
Other·F
EVP, Regional Businesses · 10b5-1
$1.2M
5.8K sh · $204.86
Own -7%
-
Grant·A
EVP, Regional Businesses · 10b5-1
$2.3M
11.4K sh · $204.86
Own +17%
-
Other·F
SVP, Corp. Controller & CAO
$153.6K
750 sh · $204.86
Own -2%
-
Grant·A
SVP, Corp. Controller & CAO
$301.8K
1.5K sh · $204.86
Own +4%
-
Other·F
E. J. Davis KEY
CEO and President
$5.4M
26.4K sh · $204.86
Own -16%
-
Grant·A
E. J. Davis KEY
CEO and President
$10.6M
51.7K sh · $204.86
Own +44%
-
Other·F
SVP & Chief Commercial Officer
$476.5K
2.3K sh · $204.86
Own -16%
-
Grant·A
SVP & Chief Commercial Officer
$1.2M
5.7K sh · $204.86
Own +67%
-
Sell·S
SVP for Diagnostic Services · 10b5-1
$85.2K
410 sh · $207.73
Own -3%
-
Sell·S
SVP & General Counsel · 10b5-1
$109.3K
526 sh · $207.73
Own -1%
-
Sell·S
EVP, Regional Businesses · 10b5-1
$131.3K
632 sh · $207.73
Own -1%
-
Other·F
Sam Samad KEY
Executive Vice President & CFO
$178.0K
869 sh · $204.86
Own -3%
-
Other·F
SVP for Diagnostic Services · 10b5-1
$47.1K
230 sh · $204.86
Own -1%
-
Other·F
SVP & General Counsel · 10b5-1
$59.0K
288 sh · $204.86
Own -1%
-
Other·F
SVP, Clinical Solutions
$42.0K
205 sh · $204.86
Own -2%
-
Other·F
EVP, Regional Businesses · 10b5-1
$132.7K
648 sh · $204.86
Own -1%
-
Other·F
SVP, Corp. Controller & CAO
$18.0K
88 sh · $204.86
Own -0%
-
Sell·S
E. J. Davis KEY
CEO and President · 10b5-1
$2.1M
10.0K sh · $212.52
Own -8%
-
Other·F
E. J. Davis KEY
CEO and President · 10b5-1
$608.0K
3.0K sh · $204.86
Own -2%
-
Other·F
SVP & Chief Commercial Officer
$38.5K
188 sh · $204.86
Own -2%
-
Sell·S
SVP for Diagnostic Services · 10b5-1
$196.2K
958 sh · $204.83
Own -6%
-
Sell·S
SVP & General Counsel · 10b5-1
$227.6K
1.1K sh · $204.83
Own -3%
-
Sell·S
EVP, Regional Businesses · 10b5-1
$293.5K
1.4K sh · $204.83
Own -2%
-
Grant·A
Sam Samad KEY
Executive Vice President & CFO
$0
18.3K sh
Own New
-
Other·F
Sam Samad KEY
Executive Vice President & CFO
$209.1K
1.0K sh · $206.99
Own -4%
-
Other·F
Sam Samad KEY
Executive Vice President & CFO
$179.6K
855 sh · $210.01
Own -3%
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Grant·A
Sam Samad KEY
Executive Vice President & CFO
$0
4.0K sh
Own +15%
-
Grant·A
SVP for Diagnostic Services · 10b5-1
$0
9.0K sh
Own New
-
Other·F
SVP for Diagnostic Services · 10b5-1
$60.6K
293 sh · $206.99
Own -2%
-
Other·F
SVP for Diagnostic Services · 10b5-1
$51.2K
244 sh · $210.01
Own -1%
-
Grant·A
SVP for Diagnostic Services · 10b5-1
$0
2.0K sh
Own +13%
-
Grant·A
SVP & General Counsel · 10b5-1
$0
9.3K sh
Own New
-
Other·F
SVP & General Counsel · 10b5-1
$71.8K
347 sh · $206.99
Own -1%
-
Other·F
SVP & General Counsel · 10b5-1
$63.2K
301 sh · $210.01
Own -1%
-
Grant·A
SVP & General Counsel · 10b5-1
$0
2.0K sh
Own +5%
-
Grant·A
SVP, Clinical Solutions
$0
9.9K sh
Own New
-
Grant·A
SVP, Clinical Solutions
$0
2.1K sh
Own +27%
-
Other·F
SVP, Clinical Solutions
$53.6K
259 sh · $206.99
Own -3%
-
Other·F
SVP, Clinical Solutions
$52.9K
252 sh · $210.01
Own -3%
-
Grant·A
EVP, Regional Businesses · 10b5-1
$0
13.5K sh
Own New
-
Other·F
EVP, Regional Businesses · 10b5-1
$150.7K
728 sh · $206.99
Own -1%
-
Other·F
EVP, Regional Businesses · 10b5-1
$90.9K
433 sh · $210.01
Own -1%
-
Grant·A
EVP, Regional Businesses · 10b5-1
$0
2.9K sh
Own +4%
-
Grant·A
SVP, Corp. Controller & CAO
$0
1.7K sh
Own New
-
Other·F
SVP, Corp. Controller & CAO
$20.5K
99 sh · $206.99
Own -0%
-
Other·F
SVP, Corp. Controller & CAO
$17.4K
83 sh · $210.01
Own -0%
-
Grant·A
SVP, Corp. Controller & CAO
$0
366 sh
Own +1%
-
Grant·A
E. J. Davis KEY
CEO and President
$0
73.2K sh
Own New
-
Other·F
E. J. Davis KEY
CEO and President
$784.1K
3.8K sh · $206.99
Own -3%
-
Other·F
E. J. Davis KEY
CEO and President
$503.2K
2.4K sh · $210.01
Own -2%
-
Grant·A
E. J. Davis KEY
CEO and President
$0
15.9K sh
Own +13%
-
Grant·A
SVP & Chief Commercial Officer
$0
7.3K sh
Own New
-
Other·F
SVP & Chief Commercial Officer
$47.6K
230 sh · $206.99
Own -3%
-
Other·F
SVP & Chief Commercial Officer
$43.1K
205 sh · $210.01
Own -2%
-
Grant·A
SVP & Chief Commercial Officer
$0
1.6K sh
Own +21%
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Exercise·M
EVP, Regional Businesses · 10b5-1
$2.9M
26.2K sh · $112.17
Own New
-
Sell·S
EVP, Regional Businesses · 10b5-1
$73.4K
351 sh · $209.10
Own -1%
-
Sell·S
EVP, Regional Businesses · 10b5-1
$337.1K
1.6K sh · $208.21
Own -2%
-
Sell·S
EVP, Regional Businesses · 10b5-1
$724.8K
3.5K sh · $207.08
Own -5%
-
Sell·S
EVP, Regional Businesses · 10b5-1
$2.1M
10.1K sh · $206.37
Own -12%
-
Sell·S
EVP, Regional Businesses · 10b5-1
$2.2M
10.6K sh · $205.21
Own -11%
-
Exercise·M
EVP, Regional Businesses · 10b5-1
$2.9M
26.2K sh · $112.17
Own +38%
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Exercise·M
SVP for Diagnostic Services · 10b5-1
$689.7K
5.7K sh · $121.81
Own New
-
Sell·S
SVP for Diagnostic Services · 10b5-1
$1.2M
5.7K sh · $204.00
Own -27%
-
Exercise·M
SVP for Diagnostic Services · 10b5-1
$689.7K
5.7K sh · $121.81
Own +37%
-
Grant·A
SVP for Diagnostic Services · 10b5-1
$8.8K
48 sh · $183.51
Own +0%
-
Grant·A
Sam Samad KEY
Executive Vice President & CFO
$12.7K
69 sh · $183.51
Own +0%
-
Other·L
Director
$1.3K
7 sh · $183.51
-
Other·L
SVP, Clinical Solutions
$2.9K
16 sh · $183.52
-
Other·L
Director
$12.3K
67 sh · $183.51
-
Other·L
SVP & Chief Commercial Officer
$2.8K
15 sh · $183.51
-
Other·L
Director
$1.1K
6 sh · $183.51
-
Grant·A
Director
$0
861 sh
Own +9%
-
Other·F
Director
$72.6K
688 sh · $105.47
Own -16%
-
Grant·A
Director
$0
1.6K sh
Own New
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 4, 2026 | Karthik Kuppusamy 10b5-1 | Exercise M | 4.8K | $588.0K |
| Jun 4, 2026 | Karthik Kuppusamy 10b5-1 | Exercise M | 3.3K | $424.0K |
| Jun 4, 2026 | Karthik Kuppusamy 10b5-1 | Sell S | 8.1K | $1.6M |
| Jun 4, 2026 | Karthik Kuppusamy 10b5-1 | Exercise M | 4.8K | $588.0K |
| Jun 4, 2026 | Karthik Kuppusamy 10b5-1 | Exercise M | 3.3K | $424.0K |
| Jun 1, 2026 | E. J. Davis KEY 10b5-1 | Sell S | 10.0K | $1.9M |
| May 20, 2026 | Timothy C Wentworth | Grant A | 1.1K | $0 |
| May 20, 2026 | Timothy M Ring | Grant A | 1.1K | $0 |
| May 20, 2026 | Gary M Pfeiffer | Grant A | 1.1K | $0 |
| May 20, 2026 | Denise M Morrison | Grant A | 1.1K | $0 |
| May 20, 2026 | Timothy L Main | Grant A | 1.1K | $0 |
| May 20, 2026 | Wright Lassiter III | Grant A | 1.1K | $0 |
| May 20, 2026 | Vicky B Gregg | Grant A | 1.1K | $0 |
| May 20, 2026 | Tracey Doi | Grant A | 1.1K | $0 |
| May 20, 2026 | Luis Diaz | Grant A | 1.1K | $0 |
| May 20, 2026 | Robert B Carter | Grant A | 1.1K | $0 |
| Apr 20, 2026 | Sam Samad KEY | Grant A | 108 | $21.0K |
| Apr 20, 2026 | Patrick Plewman | Other L | 49 | $9.5K |
| Apr 20, 2026 | Wright Lassiter III | Other L | 6 | $1.2K |
| Apr 20, 2026 | Karthik Kuppusamy | Other L | 39 | $7.6K |
| Apr 20, 2026 | Vicky B Gregg | Grant A | 68 | $13.2K |
| Apr 20, 2026 | Mark E Delaney | Other L | 37 | $7.2K |
| Apr 20, 2026 | Robert B Carter | Other L | 7 | $1.4K |
| Apr 1, 2026 | Timothy C Wentworth | Grant A | 198 | $0 |
| Mar 9, 2026 | Timothy C Wentworth | Grant A | 215 | $0 |
| Mar 5, 2026 | Patrick Plewman 10b5-1 | Sell S | 2.9K | $588.7K |
| Mar 5, 2026 | Michael E Prevoznik 10b5-1 | Sell S | 3.9K | $799.7K |
| Mar 5, 2026 | Catherine T. Doherty 10b5-1 | Sell S | 5.6K | $1.1M |
| Mar 4, 2026 | Sam Samad KEY | Other F | 7.7K | $1.6M |
| Mar 4, 2026 | Sam Samad KEY | Grant A | 13.9K | $2.9M |
| Mar 4, 2026 | Patrick Plewman 10b5-1 | Other F | 2.8K | $579.1K |
| Mar 4, 2026 | Patrick Plewman 10b5-1 | Grant A | 5.7K | $1.2M |
| Mar 4, 2026 | Michael E Prevoznik 10b5-1 | Other F | 3.4K | $687.1K |
| Mar 4, 2026 | Michael E Prevoznik 10b5-1 | Grant A | 7.2K | $1.5M |
| Mar 4, 2026 | Karthik Kuppusamy | Sell S | 2.6K | $538.4K |
| Mar 4, 2026 | Karthik Kuppusamy | Grant A | 6.2K | $1.3M |
| Mar 4, 2026 | Catherine T. Doherty 10b5-1 | Other F | 5.8K | $1.2M |
| Mar 4, 2026 | Catherine T. Doherty 10b5-1 | Grant A | 11.4K | $2.3M |
| Mar 4, 2026 | Michael J Deppe | Other F | 750 | $153.6K |
| Mar 4, 2026 | Michael J Deppe | Grant A | 1.5K | $301.8K |
| Mar 4, 2026 | E. J. Davis KEY | Other F | 26.4K | $5.4M |
| Mar 4, 2026 | E. J. Davis KEY | Grant A | 51.7K | $10.6M |
| Mar 4, 2026 | Mark E Delaney | Other F | 2.3K | $476.5K |
| Mar 4, 2026 | Mark E Delaney | Grant A | 5.7K | $1.2M |
| Mar 3, 2026 | Patrick Plewman 10b5-1 | Sell S | 410 | $85.2K |
| Mar 3, 2026 | Michael E Prevoznik 10b5-1 | Sell S | 526 | $109.3K |
| Mar 3, 2026 | Catherine T. Doherty 10b5-1 | Sell S | 632 | $131.3K |
| Mar 2, 2026 | Sam Samad KEY | Other F | 869 | $178.0K |
| Mar 2, 2026 | Patrick Plewman 10b5-1 | Other F | 230 | $47.1K |
| Mar 2, 2026 | Michael E Prevoznik 10b5-1 | Other F | 288 | $59.0K |
| Mar 2, 2026 | Karthik Kuppusamy | Other F | 205 | $42.0K |
| Mar 2, 2026 | Catherine T. Doherty 10b5-1 | Other F | 648 | $132.7K |
| Mar 2, 2026 | Michael J Deppe | Other F | 88 | $18.0K |
| Mar 2, 2026 | E. J. Davis KEY 10b5-1 | Sell S | 10.0K | $2.1M |
| Mar 2, 2026 | E. J. Davis KEY 10b5-1 | Other F | 3.0K | $608.0K |
| Mar 2, 2026 | Mark E Delaney | Other F | 188 | $38.5K |
| Feb 19, 2026 | Patrick Plewman 10b5-1 | Sell S | 958 | $196.2K |
| Feb 19, 2026 | Michael E Prevoznik 10b5-1 | Sell S | 1.1K | $227.6K |
| Feb 19, 2026 | Catherine T. Doherty 10b5-1 | Sell S | 1.4K | $293.5K |
| Feb 18, 2026 | Sam Samad KEY | Grant A | 18.3K | $0 |
| Feb 18, 2026 | Sam Samad KEY | Other F | 1.0K | $209.1K |
| Feb 18, 2026 | Sam Samad KEY | Other F | 855 | $179.6K |
| Feb 18, 2026 | Sam Samad KEY | Grant A | 4.0K | $0 |
| Feb 18, 2026 | Patrick Plewman 10b5-1 | Grant A | 9.0K | $0 |
| Feb 18, 2026 | Patrick Plewman 10b5-1 | Other F | 293 | $60.6K |
| Feb 18, 2026 | Patrick Plewman 10b5-1 | Other F | 244 | $51.2K |
| Feb 18, 2026 | Patrick Plewman 10b5-1 | Grant A | 2.0K | $0 |
| Feb 18, 2026 | Michael E Prevoznik 10b5-1 | Grant A | 9.3K | $0 |
| Feb 18, 2026 | Michael E Prevoznik 10b5-1 | Other F | 347 | $71.8K |
| Feb 18, 2026 | Michael E Prevoznik 10b5-1 | Other F | 301 | $63.2K |
| Feb 18, 2026 | Michael E Prevoznik 10b5-1 | Grant A | 2.0K | $0 |
| Feb 18, 2026 | Karthik Kuppusamy | Grant A | 9.9K | $0 |
| Feb 18, 2026 | Karthik Kuppusamy | Grant A | 2.1K | $0 |
| Feb 18, 2026 | Karthik Kuppusamy | Other F | 259 | $53.6K |
| Feb 18, 2026 | Karthik Kuppusamy | Other F | 252 | $52.9K |
| Feb 18, 2026 | Catherine T. Doherty 10b5-1 | Grant A | 13.5K | $0 |
| Feb 18, 2026 | Catherine T. Doherty 10b5-1 | Other F | 728 | $150.7K |
| Feb 18, 2026 | Catherine T. Doherty 10b5-1 | Other F | 433 | $90.9K |
| Feb 18, 2026 | Catherine T. Doherty 10b5-1 | Grant A | 2.9K | $0 |
| Feb 18, 2026 | Michael J Deppe | Grant A | 1.7K | $0 |
| Feb 18, 2026 | Michael J Deppe | Other F | 99 | $20.5K |
| Feb 18, 2026 | Michael J Deppe | Other F | 83 | $17.4K |
| Feb 18, 2026 | Michael J Deppe | Grant A | 366 | $0 |
| Feb 18, 2026 | E. J. Davis KEY | Grant A | 73.2K | $0 |
| Feb 18, 2026 | E. J. Davis KEY | Other F | 3.8K | $784.1K |
| Feb 18, 2026 | E. J. Davis KEY | Other F | 2.4K | $503.2K |
| Feb 18, 2026 | E. J. Davis KEY | Grant A | 15.9K | $0 |
| Feb 18, 2026 | Mark E Delaney | Grant A | 7.3K | $0 |
| Feb 18, 2026 | Mark E Delaney | Other F | 230 | $47.6K |
| Feb 18, 2026 | Mark E Delaney | Other F | 205 | $43.1K |
| Feb 18, 2026 | Mark E Delaney | Grant A | 1.6K | $0 |
| Feb 13, 2026 | Catherine T. Doherty 10b5-1 | Exercise M | 26.2K | $2.9M |
| Feb 13, 2026 | Catherine T. Doherty 10b5-1 | Sell S | 351 | $73.4K |
| Feb 13, 2026 | Catherine T. Doherty 10b5-1 | Sell S | 1.6K | $337.1K |
| Feb 13, 2026 | Catherine T. Doherty 10b5-1 | Sell S | 3.5K | $724.8K |
| Feb 13, 2026 | Catherine T. Doherty 10b5-1 | Sell S | 10.1K | $2.1M |
| Feb 13, 2026 | Catherine T. Doherty 10b5-1 | Sell S | 10.6K | $2.2M |
| Feb 13, 2026 | Catherine T. Doherty 10b5-1 | Exercise M | 26.2K | $2.9M |
| Feb 10, 2026 | Patrick Plewman 10b5-1 | Exercise M | 5.7K | $689.7K |
| Feb 10, 2026 | Patrick Plewman 10b5-1 | Sell S | 5.7K | $1.2M |
| Feb 10, 2026 | Patrick Plewman 10b5-1 | Exercise M | 5.7K | $689.7K |
| Jan 28, 2026 | Patrick Plewman 10b5-1 | Grant A | 48 | $8.8K |
| Jan 28, 2026 | Sam Samad KEY | Grant A | 69 | $12.7K |
| Jan 28, 2026 | Wright Lassiter III | Other L | 7 | $1.3K |
| Jan 28, 2026 | Karthik Kuppusamy | Other L | 16 | $2.9K |
| Jan 28, 2026 | Vicky B Gregg | Other L | 67 | $12.3K |
| Jan 28, 2026 | Mark E Delaney | Other L | 15 | $2.8K |
| Jan 28, 2026 | Robert B Carter | Other L | 6 | $1.1K |
| Jan 27, 2026 | Denise M Morrison | Grant A | 861 | $0 |
| Jan 2, 2026 | Tracey Doi | Other F | 688 | $72.6K |
| Jan 2, 2026 | Tracey Doi | Grant A | 1.6K | $0 |
About DGX insider trading
This page tracks insider transactions for QUEST DIAGNOSTICS INC (DGX) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.