| Insider | Role | Holdings | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| Michael E Prevoznik | SVP & General Counsel | 36,557 | — | $23,881,957 | -$23,881,957 |
| J. E. Davis | CEO and President, Director | 132,423 | — | $21,258,434 | -$21,258,434 |
| Catherine T. Doherty | EVP, Regional Businesses | 67,122 | — | $13,807,910 | -$13,807,910 |
| Karthik Kuppusamy | SVP, Clinical Solutions | 13,557 | — | $4,640,578 | -$4,640,578 |
| Patrick Plewman | SVP for Diagnostic Services | 15,293 | — | $4,598,337 | -$4,598,337 |
| Michael J Deppe | SVP, Corp. Controller & CAO | 35,196 | — | $2,889,123 | -$2,889,123 |
| Mark E Delaney | SVP & Chief Commercial Officer | 10,335 | — | $2,237,985 | -$2,237,985 |
| Vicky B Gregg | Director | 18,386 | — | $445,410 | -$445,410 |
| Gary M Pfeiffer | Director | 31,005 | — | $270,317 | -$270,317 |
| Date | Insider | Side | Shares | Price | Value | Holdings After | % of Position |
|---|---|---|---|---|---|---|---|
| 2026-08-28 | Michael E Prevoznik | SELL | 16,010 | $242.88 | $3,888,437 | 44,224 | 27% |
| 2026-08-28 | Michael E Prevoznik | SELL | 6,237 | $243.63 | $1,519,505 | 37,987 | 14% |
| 2026-08-28 | Michael E Prevoznik | SELL | 430 | $244.51 | $105,141 | 37,557 | 1% |
| 2026-07-28 | Mark E Delaney | SELL | 1,600 | $235.18 | $376,288 | 10,335 | 13% |
| 2026-06-04 | Karthik Kuppusamy | SELL | 8,147 | $200.00 | $1,629,400 | 13,510 | 38% |
| 2026-06-01 | J. E. Davis | SELL | 10,000 | $194.14 | $1,941,400 | 132,423 | 7% |
| 2026-03-05 | Catherine T. Doherty | SELL | 5,558 | $206.21 | $1,146,115 | 67,122 | 8% |
| 2026-03-05 | Michael E Prevoznik | SELL | 3,878 | $206.21 | $799,682 | 37,557 | 9% |
| 2026-03-05 | Patrick Plewman | SELL | 2,855 | $206.21 | $588,730 | 15,198 | 16% |
| 2026-03-04 | Karthik Kuppusamy | SELL | 2,628 | $204.86 | $538,372 | 13,441 | 16% |
| 2026-03-03 | Catherine T. Doherty | SELL | 632 | $207.73 | $131,285 | 67,122 | 1% |
| 2026-03-03 | Michael E Prevoznik | SELL | 526 | $207.73 | $109,266 | 37,557 | 1% |
| 2026-03-03 | Patrick Plewman | SELL | 410 | $207.73 | $85,169 | 15,198 | 3% |
| 2026-03-02 | J. E. Davis | SELL | 10,000 | $212.52 | $2,125,200 | 117,185 | 8% |
| 2026-02-19 | Patrick Plewman | SELL | 958 | $204.83 | $196,227 | 15,838 | 6% |
| 2026-02-19 | Michael E Prevoznik | SELL | 1,111 | $204.83 | $227,566 | 38,371 | 3% |
| 2026-02-19 | Catherine T. Doherty | SELL | 1,433 | $204.83 | $293,521 | 68,402 | 2% |
| 2026-02-13 | Catherine T. Doherty | SELL | 10,573 | $205.21 | $2,169,656 | 83,660 | 11% |
| 2026-02-13 | Catherine T. Doherty | SELL | 10,122 | $206.37 | $2,088,883 | 73,538 | 12% |
| 2026-02-13 | Catherine T. Doherty | SELL | 3,500 | $207.08 | $724,788 | 70,038 | 5% |
| 2026-02-13 | Catherine T. Doherty | SELL | 1,619 | $208.21 | $337,093 | 68,419 | 2% |
| 2026-02-13 | Catherine T. Doherty | SELL | 351 | $209.10 | $73,395 | 68,068 | 1% |
| 2026-02-10 | Patrick Plewman | SELL | 5,662 | $204.00 | $1,155,048 | 15,381 | 27% |
| 2025-11-25 | J. E. Davis | SELL | 9,342 | $191.59 | $1,789,823 | 166,231 | 5% |
| 2025-11-25 | J. E. Davis | SELL | 41,004 | $192.27 | $7,883,901 | 125,227 | 25% |
| 2025-11-25 | J. E. Davis | SELL | 4,747 | $192.97 | $916,037 | 120,480 | 4% |
| 2025-11-25 | Vicky B Gregg | SELL | 1,250 | $191.76 | $239,700 | 17,037 | 7% |
| 2025-11-18 | Mark E Delaney | SELL | 7,946 | $187.35 | $1,488,683 | 7,530 | 51% |
| 2025-10-22 | Gary M Pfeiffer | SELL | 1,482 | $182.40 | $270,317 | 29,431 | 5% |
| 2025-09-26 | Michael E Prevoznik | SELL | 83 | $187.22 | $15,539 | 38,261 | 0% |
| 2025-09-26 | Michael E Prevoznik | SELL | 144 | $188.66 | $27,167 | 38,117 | 0% |
| 2025-09-24 | Michael E Prevoznik | SELL | 175 | $187.02 | $32,729 | 38,117 | 0% |
| 2025-09-23 | Michael E Prevoznik | SELL | 28,288 | $187.12 | $5,293,313 | 38,117 | 43% |
| 2025-08-21 | Patrick Plewman | SELL | 1,975 | $185.00 | $365,375 | 15,269 | 11% |
| 2025-08-19 | Patrick Plewman | SELL | 4,532 | $183.00 | $829,356 | 17,244 | 21% |
| 2025-08-15 | Patrick Plewman | SELL | 1,975 | $180.00 | $355,500 | 17,244 | 10% |
| 2025-08-06 | Patrick Plewman | SELL | 3,560 | $175.00 | $623,000 | 21,185 | 14% |
| 2025-08-06 | Patrick Plewman | SELL | 1,975 | $175.00 | $345,625 | 19,219 | 9% |
| 2025-07-31 | Karthik Kuppusamy | SELL | 2,210 | $170.00 | $375,700 | 8,450 | 21% |
| 2025-07-30 | Karthik Kuppusamy | SELL | 3,045 | $167.40 | $509,733 | 10,660 | 22% |
| 2025-07-30 | Karthik Kuppusamy | SELL | 5,224 | $167.40 | $874,498 | 10,660 | 33% |
| 2025-05-13 | Mark E Delaney | SELL | 874 | $175.31 | $153,221 | 7,498 | 10% |
| 2025-05-12 | Mark E Delaney | SELL | 874 | $175.72 | $153,579 | 8,372 | 9% |
| 2025-04-02 | J. E. Davis | SELL | 2,366 | $168.03 | $397,553 | 164,448 | 1% |
| 2025-04-02 | J. E. Davis | SELL | 1,411 | $168.76 | $238,114 | 163,037 | 1% |
| 2025-04-02 | J. E. Davis | SELL | 704 | $169.63 | $119,416 | 162,333 | 0% |
| 2025-04-02 | J. E. Davis | SELL | 7,249 | $167.86 | $1,216,845 | 155,084 | 4% |
| 2025-04-02 | J. E. Davis | SELL | 4,905 | $168.72 | $827,564 | 150,179 | 3% |
| 2025-04-02 | J. E. Davis | SELL | 2,764 | $169.56 | $468,662 | 147,415 | 2% |
| 2025-04-02 | J. E. Davis | SELL | 6,950 | $167.86 | $1,166,627 | 140,465 | 5% |
| 2025-04-02 | J. E. Davis | SELL | 5,900 | $168.66 | $995,121 | 134,565 | 4% |
| 2025-04-02 | J. E. Davis | SELL | 2,493 | $169.57 | $422,736 | 132,072 | 2% |
| 2025-04-02 | J. E. Davis | SELL | 750 | $167.86 | $125,897 | 131,322 | 1% |
| 2025-04-02 | J. E. Davis | SELL | 584 | $168.70 | $98,520 | 130,738 | 0% |
| 2025-04-02 | J. E. Davis | SELL | 267 | $169.60 | $45,282 | 130,471 | 0% |
| 2025-04-02 | J. E. Davis | SELL | 1,493 | $167.88 | $250,643 | 128,978 | 1% |
| 2025-04-02 | J. E. Davis | SELL | 902 | $168.79 | $152,249 | 128,076 | 1% |
| 2025-04-02 | J. E. Davis | SELL | 453 | $169.63 | $76,844 | 127,623 | 0% |
| 2025-04-02 | Karthik Kuppusamy | SELL | 2,555 | $170.00 | $434,350 | 10,575 | 19% |
| 2025-03-17 | Michael E Prevoznik | SELL | 4,643 | $170.00 | $789,310 | 38,117 | 11% |
| 2025-03-05 | Catherine T. Doherty | SELL | 5,370 | $174.13 | $935,078 | 68,068 | 7% |
| 2025-03-04 | Catherine T. Doherty | SELL | 716 | $175.79 | $125,866 | 68,068 | 1% |
| 2025-03-04 | Michael E Prevoznik | SELL | 592 | $175.79 | $104,068 | 38,117 | 2% |
| 2025-02-27 | Michael E Prevoznik | SELL | 528 | $172.61 | $91,138 | 39,031 | 1% |
| 2025-02-27 | Catherine T. Doherty | SELL | 824 | $172.61 | $142,231 | 69,178 | 1% |
| 2025-02-20 | Michael E Prevoznik | SELL | 604 | $170.99 | $103,278 | 39,845 | 1% |
| 2025-02-20 | Catherine T. Doherty | SELL | 899 | $170.99 | $153,720 | 70,457 | 1% |
| 2025-02-19 | Patrick Plewman | SELL | 320 | $169.71 | $54,307 | 18,082 | 2% |
| 2025-02-19 | Catherine T. Doherty | SELL | 535 | $169.71 | $90,795 | 71,356 | 1% |
| 2025-02-05 | Vicky B Gregg | SELL | 1,250 | $164.57 | $205,710 | 16,867 | 7% |
| 2025-02-05 | Mark E Delaney | SELL | 403 | $164.30 | $66,214 | 4,624 | 8% |
| 2024-11-29 | Michael E Prevoznik | SELL | 3,009 | $162.26 | $488,237 | 70,615 | 4% |
| 2024-11-29 | Michael E Prevoznik | SELL | 32,137 | $163.15 | $5,243,065 | 38,478 | 46% |
| 2024-11-27 | Catherine T. Doherty | SELL | 4,803 | $162.14 | $778,775 | 96,712 | 5% |
| 2024-11-27 | Catherine T. Doherty | SELL | 28,300 | $163.13 | $4,616,709 | 68,412 | 29% |
| 2024-11-06 | Michael J Deppe | SELL | 2,100 | $152.70 | $320,676 | 51,596 | 4% |
| 2024-11-06 | Michael J Deppe | SELL | 2,400 | $153.98 | $369,559 | 49,196 | 5% |
| 2024-11-06 | Michael J Deppe | SELL | 4,135 | $154.74 | $639,833 | 45,061 | 8% |
| 2024-11-06 | Michael J Deppe | SELL | 2,600 | $152.71 | $397,050 | 42,461 | 6% |
| 2024-11-06 | Michael J Deppe | SELL | 2,331 | $154.03 | $359,046 | 40,130 | 5% |
| 2024-11-06 | Michael J Deppe | SELL | 5,189 | $154.74 | $802,958 | 34,941 | 13% |
| 2024-10-28 | Karthik Kuppusamy | SELL | 1,775 | $156.92 | $278,525 | 9,734 | 15% |
| 2024-08-29 | Michael E Prevoznik | SELL | 32,551 | $154.97 | $5,044,516 | 38,478 | 46% |