Company / CIK 0001022079
QUEST DIAGNOSTICS INC
- Ticker
- DGX
- Size, estimated from filings
- Large cap ($10B – $200B)
- Insiders on file
- 18
- Members of Congress who traded it
- 4
- Federal contracts on record
- 76 awards
- Lobbying filings on record
- 19
- SEC filings
- EDGAR ↗
- Latest trade on record
- October 1, 2026
QUEST DIAGNOSTICS INC (DGX) has 18 insiders on file who disclosed 146 transactions in the last 12 months (0 open-market buys, 62 sales, about $101.5M at reported prices), and 8 congressional trades in its stock are on record. USAspending shows 76 federal contract awards with a combined value of $64.2M to a recipient with this name that started in the last 180 days, and 9 lobbying filings naming it as client report $1.6M in 2026.
QUEST DIAGNOSTICS INC in charts
Who is trading this stock
Which people account for the buying and selling over the last 12 months?
BoughtSold
8 people account for the disclosed buying and selling in QUEST DIAGNOSTICS INC over the last 12 months; the most active is Davis J. E. with $26M.
Lobbying spend by quarter
How much has QUEST DIAGNOSTICS INC reported spending on federal lobbying?
QUEST DIAGNOSTICS INC reported $3.3M in lobbying over the last eight quarters, from filings matched by exact company name.
Federal contracts by agency
Which agencies awarded QUEST DIAGNOSTICS INC contracts that started in the last 180 days?
Federal contract awards to QUEST DIAGNOSTICS INC that started in the last 180 days have a combined award value of $64M, most from Department of Veterans Affairs.
Insiders
| Name | Role | Rows | Bought | Sold | Last filed |
|---|---|---|---|---|---|
| WENTWORTH TIMOTHY C | Director | 5 | 0 | 0 | October 2, 2026 |
| Lassiter Wright III | Director | 5 | 0 | 0 | September 28, 2026 |
| Davis J. E. | CEO and President | 16 | 0 | 11 | September 3, 2026 |
| PREVOZNIK MICHAEL E | SVP & General Counsel | 16 | 0 | 10 | August 31, 2026 |
| DELANEY MARK E | SVP & Chief Commercial Officer | 17 | 0 | 6 | July 29, 2026 |
| Plewman Patrick | SVP for Diagnostic Services | 17 | 0 | 8 | July 27, 2026 |
| Gregg Vicky B | Director | 6 | 0 | 1 | July 27, 2026 |
| CARTER ROBERT B | Director | 5 | 0 | 0 | July 27, 2026 |
| KUPPUSAMY KARTHIK | SVP, Clinical Solutions | 16 | 0 | 5 | July 27, 2026 |
| SAMAD SAM | Executive Vice President & CFO | 11 | 0 | 4 | July 27, 2026 |
| MAIN TIMOTHY L | Director | 2 | 0 | 0 | July 27, 2026 |
| PFEIFFER GARY M | Director | 3 | 0 | 1 | May 21, 2026 |
| MORRISON DENISE M | Director | 1 | 0 | 0 | May 21, 2026 |
| RING TIMOTHY M | Director | 2 | 0 | 0 | May 21, 2026 |
| Doi Tracey | Director | 1 | 0 | 0 | May 21, 2026 |
| Diaz Luis | Director | 1 | 0 | 0 | May 21, 2026 |
| Doherty Catherine T. | EVP, Regional Businesses | 17 | 0 | 12 | March 6, 2026 |
| Deppe Michael J | SVP, Corp. Controller & CAO | 7 | 0 | 4 | March 6, 2026 |
Rows are this company's Form 4 rows for each person. "Bought" and "sold" count open-market purchases (code P) and sales only. More in insider buying and insider selling.
Members of Congress who traded DGX
From periodic transaction reports that name the company's stock. Amounts are the sums of the ranges as filed. Every row is on the DGX page.
| Member | Seat | Trades | Bought | Sold | Range as filed | Latest |
|---|---|---|---|---|---|---|
| Julie Johnson | Representative (TX, District 32), Democrat | 3 | 1 | 2 | $3,003–$45K | November 3, 2025 |
| Alan Armstrong | Senator (OK), Republican | 2 | 2 | 0 | $2,002–$30K | March 30, 2026 |
| Julia Letlow | Representative (LA, District 5), Republican | 2 | 1 | 1 | $2,002–$30K | July 24, 2025 |
| Carol D. Miller | Representative (WV, District 1), Republican | 1 | 0 | 1 | $15K–$50K | March 10, 2025 |
Insider transactions
| Filer | Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|---|
| WENTWORTH TIMOTHY C | DGX | Other A | October 1, 2026 | October 2, 2026 | 1d | 135 | — | — | derivative | Form 4 ↗ | |
| Davis J. E. | DGX | Sell S | September 1, 2026 | September 3, 2026 | 2d | 10,000 | $243 | $2.4M | 10b5-1 plan | Form 4 ↗ | |
| PREVOZNIK MICHAEL E | DGX | Option / conversion M | August 28, 2026 | August 31, 2026 | 3d | 22,677 | $112 | $2.5M | 10b5-1 planderivative | Form 4 ↗ | |
| PREVOZNIK MICHAEL E | DGX | Other G | August 28, 2026 | August 31, 2026 | 3d | 1,000 | — | — | 10b5-1 plan | Form 4 ↗ | |
| PREVOZNIK MICHAEL E | DGX | Sell S | August 28, 2026 | August 31, 2026 | 3d | 430 | $245 | $105K | 10b5-1 plan | Form 4 ↗ | |
| PREVOZNIK MICHAEL E | DGX | Sell S | August 28, 2026 | August 31, 2026 | 3d | 6,237 | $244 | $1.5M | 10b5-1 plan | Form 4 ↗ | |
| PREVOZNIK MICHAEL E | DGX | Sell S | August 28, 2026 | August 31, 2026 | 3d | 16,010 | $243 | $3.9M | 10b5-1 plan | Form 4 ↗ | |
| PREVOZNIK MICHAEL E | DGX | Option / conversion M | August 28, 2026 | August 31, 2026 | 3d | 22,677 | $112 | $2.5M | 10b5-1 plan | Form 4 ↗ | |
| DELANEY MARK E | DGX | Sell S | July 28, 2026 | July 29, 2026 | 1d | 1,600 | $235 | $376K | 10b5-1 plan | Form 4 ↗ | |
| KUPPUSAMY KARTHIK | DGX | Other L | July 22, 2026 | July 27, 2026 | 5d | 37 | $207 | $7,652 | late | Form 4 ↗ | |
| CARTER ROBERT B | DGX | Other L | July 22, 2026 | July 27, 2026 | 5d | 11 | $207 | $2,275 | late | Form 4 ↗ | |
| Gregg Vicky B | DGX | Other A | July 22, 2026 | July 27, 2026 | 5d | 72 | $207 | $15K | late | Form 4 ↗ | |
| Plewman Patrick | DGX | Other L | July 22, 2026 | July 27, 2026 | 5d | 46 | $207 | $9,513 | late | Form 4 ↗ | |
| MAIN TIMOTHY L | DGX | Other L | July 22, 2026 | July 27, 2026 | 5d | 21 | $207 | $4,343 | late | Form 4 ↗ | |
| SAMAD SAM | DGX | Other A | July 22, 2026 | July 27, 2026 | 5d | 102 | $207 | $21K | late | Form 4 ↗ | |
| Lassiter Wright III | DGX | Other L | July 22, 2026 | July 27, 2026 | 5d | 6 | $207 | $1,241 | late | Form 4 ↗ | |
| DELANEY MARK E | DGX | Other L | July 22, 2026 | July 27, 2026 | 5d | 34 | $207 | $7,031 | late | Form 4 ↗ | |
| WENTWORTH TIMOTHY C | DGX | Other A | July 1, 2026 | July 2, 2026 | 1d | 144 | — | — | derivative | Form 4 ↗ | |
| KUPPUSAMY KARTHIK | DGX | Option / conversion M | June 4, 2026 | June 8, 2026 | 4d | 4,827 | $122 | $588K | 10b5-1 planderivative | Form 4 ↗ | |
| KUPPUSAMY KARTHIK | DGX | Option / conversion M | June 4, 2026 | June 8, 2026 | 4d | 3,320 | $128 | $424K | 10b5-1 planderivative | Form 4 ↗ | |
| KUPPUSAMY KARTHIK | DGX | Sell S | June 4, 2026 | June 8, 2026 | 4d | 8,147 | $200 | $1.6M | 10b5-1 plan | Form 4 ↗ | |
| KUPPUSAMY KARTHIK | DGX | Option / conversion M | June 4, 2026 | June 8, 2026 | 4d | 4,827 | $122 | $588K | 10b5-1 plan | Form 4 ↗ | |
| KUPPUSAMY KARTHIK | DGX | Option / conversion M | June 4, 2026 | June 8, 2026 | 4d | 3,320 | $128 | $424K | 10b5-1 plan | Form 4 ↗ | |
| Davis J. E. | DGX | Sell S | June 1, 2026 | June 2, 2026 | 1d | 10,000 | $194 | $1.9M | 10b5-1 plan | Form 4 ↗ | |
| CARTER ROBERT B | DGX | Other A | May 20, 2026 | May 21, 2026 | 1d | 1,142 | — | — | Form 4 ↗ | ||
| Gregg Vicky B | DGX | Other A | May 20, 2026 | May 21, 2026 | 1d | 1,142 | — | — | Form 4 ↗ | ||
| Diaz Luis | DGX | Other A | May 20, 2026 | May 21, 2026 | 1d | 1,142 | — | — | Form 4 ↗ | ||
| MAIN TIMOTHY L | DGX | Other A | May 20, 2026 | May 21, 2026 | 1d | 1,142 | — | — | Form 4 ↗ | ||
| WENTWORTH TIMOTHY C | DGX | Other A | May 20, 2026 | May 21, 2026 | 1d | 1,142 | — | — | Form 4 ↗ | ||
| Doi Tracey | DGX | Other A | May 20, 2026 | May 21, 2026 | 1d | 1,142 | — | — | Form 4 ↗ | ||
| RING TIMOTHY M | DGX | Other A | May 20, 2026 | May 21, 2026 | 1d | 1,142 | — | — | Form 4 ↗ | ||
| Lassiter Wright III | DGX | Other A | May 20, 2026 | May 21, 2026 | 1d | 1,142 | — | — | Form 4 ↗ | ||
| MORRISON DENISE M | DGX | Other A | May 20, 2026 | May 21, 2026 | 1d | 1,142 | — | — | Form 4 ↗ | ||
| PFEIFFER GARY M | DGX | Other A | May 20, 2026 | May 21, 2026 | 1d | 1,142 | — | — | Form 4 ↗ | ||
| SAMAD SAM | DGX | Other A | April 20, 2026 | April 24, 2026 | 4d | 108 | $195 | $21K | Form 4 ↗ | ||
| Plewman Patrick | DGX | Other L | April 20, 2026 | April 24, 2026 | 4d | 49 | $195 | $9,540 | Form 4 ↗ | ||
| Gregg Vicky B | DGX | Other A | April 20, 2026 | April 24, 2026 | 4d | 68 | $195 | $13K | Form 4 ↗ | ||
| CARTER ROBERT B | DGX | Other L | April 20, 2026 | April 24, 2026 | 4d | 7 | $195 | $1,363 | Form 4 ↗ | ||
| Lassiter Wright III | DGX | Other L | April 20, 2026 | April 24, 2026 | 4d | 6 | $195 | $1,168 | Form 4 ↗ | ||
| KUPPUSAMY KARTHIK | DGX | Other L | April 20, 2026 | April 24, 2026 | 4d | 39 | $195 | $7,593 | Form 4 ↗ | ||
| DELANEY MARK E | DGX | Other L | April 20, 2026 | April 24, 2026 | 4d | 37 | $195 | $7,204 | Form 4 ↗ | ||
| WENTWORTH TIMOTHY C | DGX | Other A | April 1, 2026 | April 2, 2026 | 1d | 198 | — | — | derivative | Form 4 ↗ | |
| WENTWORTH TIMOTHY C | DGX | Other A | March 9, 2026 | March 11, 2026 | 2d | 215 | — | — | Form 4 ↗ | ||
| SAMAD SAM | DGX | Sell F | March 4, 2026 | March 6, 2026 | 2d | 7,720 | $205 | $1.6M | Form 4 ↗ | ||
| SAMAD SAM | DGX | Other A | March 4, 2026 | March 6, 2026 | 2d | 13,947 | $205 | $2.9M | Form 4 ↗ | ||
| Doherty Catherine T. | DGX | Sell S | March 5, 2026 | March 6, 2026 | 1d | 5,558 | $206 | $1.1M | 10b5-1 plan | Form 4 ↗ | |
| Doherty Catherine T. | DGX | Sell F | March 4, 2026 | March 6, 2026 | 2d | 5,806 | $205 | $1.2M | 10b5-1 plan | Form 4 ↗ | |
| Doherty Catherine T. | DGX | Other A | March 4, 2026 | March 6, 2026 | 2d | 11,364 | $205 | $2.3M | 10b5-1 plan | Form 4 ↗ | |
| DELANEY MARK E | DGX | Sell F | March 4, 2026 | March 6, 2026 | 2d | 2,326 | $205 | $477K | Form 4 ↗ | ||
| DELANEY MARK E | DGX | Other A | March 4, 2026 | March 6, 2026 | 2d | 5,682 | $205 | $1.2M | Form 4 ↗ | ||
| PREVOZNIK MICHAEL E | DGX | Sell S | March 5, 2026 | March 6, 2026 | 1d | 3,878 | $206 | $800K | 10b5-1 plan | Form 4 ↗ | |
| PREVOZNIK MICHAEL E | DGX | Sell F | March 4, 2026 | March 6, 2026 | 2d | 3,354 | $205 | $687K | 10b5-1 plan | Form 4 ↗ | |
| PREVOZNIK MICHAEL E | DGX | Other A | March 4, 2026 | March 6, 2026 | 2d | 7,232 | $205 | $1.5M | 10b5-1 plan | Form 4 ↗ | |
| Davis J. E. | DGX | Sell F | March 4, 2026 | March 6, 2026 | 2d | 26,414 | $205 | $5.4M | Form 4 ↗ | ||
| Davis J. E. | DGX | Other A | March 4, 2026 | March 6, 2026 | 2d | 51,652 | $205 | $10.6M | Form 4 ↗ | ||
| Plewman Patrick | DGX | Sell S | March 5, 2026 | March 6, 2026 | 1d | 2,855 | $206 | $589K | 10b5-1 plan | Form 4 ↗ | |
| Plewman Patrick | DGX | Sell F | March 4, 2026 | March 6, 2026 | 2d | 2,827 | $205 | $579K | 10b5-1 plan | Form 4 ↗ | |
| Plewman Patrick | DGX | Other A | March 4, 2026 | March 6, 2026 | 2d | 5,682 | $205 | $1.2M | 10b5-1 plan | Form 4 ↗ | |
| Deppe Michael J | DGX | Sell F | March 4, 2026 | March 6, 2026 | 2d | 750 | $205 | $154K | Form 4 ↗ | ||
| Deppe Michael J | DGX | Other A | March 4, 2026 | March 6, 2026 | 2d | 1,473 | $205 | $302K | Form 4 ↗ | ||
| KUPPUSAMY KARTHIK | DGX | Sell S | March 4, 2026 | March 6, 2026 | 2d | 2,628 | $205 | $538K | Form 4 ↗ | ||
| KUPPUSAMY KARTHIK | DGX | Other A | March 4, 2026 | March 6, 2026 | 2d | 6,200 | $205 | $1.3M | Form 4 ↗ | ||
| Doherty Catherine T. | DGX | Sell S | March 3, 2026 | March 4, 2026 | 1d | 632 | $208 | $131K | 10b5-1 plan | Form 4 ↗ | |
| Doherty Catherine T. | DGX | Sell F | March 2, 2026 | March 4, 2026 | 2d | 648 | $205 | $133K | 10b5-1 plan | Form 4 ↗ | |
| SAMAD SAM | DGX | Sell F | March 2, 2026 | March 4, 2026 | 2d | 869 | $205 | $178K | Form 4 ↗ | ||
| PREVOZNIK MICHAEL E | DGX | Sell S | March 3, 2026 | March 4, 2026 | 1d | 526 | $208 | $109K | 10b5-1 plan | Form 4 ↗ | |
| PREVOZNIK MICHAEL E | DGX | Sell F | March 2, 2026 | March 4, 2026 | 2d | 288 | $205 | $59K | 10b5-1 plan | Form 4 ↗ | |
| Davis J. E. | DGX | Sell S | March 2, 2026 | March 4, 2026 | 2d | 10,000 | $213 | $2.1M | 10b5-1 plan | Form 4 ↗ | |
| Davis J. E. | DGX | Sell F | March 2, 2026 | March 4, 2026 | 2d | 2,968 | $205 | $608K | 10b5-1 plan | Form 4 ↗ | |
| Plewman Patrick | DGX | Sell S | March 3, 2026 | March 4, 2026 | 1d | 410 | $208 | $85K | 10b5-1 plan | Form 4 ↗ | |
| Plewman Patrick | DGX | Sell F | March 2, 2026 | March 4, 2026 | 2d | 230 | $205 | $47K | 10b5-1 plan | Form 4 ↗ | |
| KUPPUSAMY KARTHIK | DGX | Sell F | March 2, 2026 | March 4, 2026 | 2d | 205 | $205 | $42K | Form 4 ↗ | ||
| DELANEY MARK E | DGX | Sell F | March 2, 2026 | March 4, 2026 | 2d | 188 | $205 | $39K | Form 4 ↗ | ||
| Deppe Michael J | DGX | Sell F | March 2, 2026 | March 4, 2026 | 2d | 88 | $205 | $18K | Form 4 ↗ | ||
| Plewman Patrick | DGX | Other A | February 18, 2026 | February 20, 2026 | 2d | 9,009 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Plewman Patrick | DGX | Sell S | February 19, 2026 | February 20, 2026 | 1d | 958 | $205 | $196K | 10b5-1 plan | Form 4 ↗ | |
| Plewman Patrick | DGX | Sell F | February 18, 2026 | February 20, 2026 | 2d | 293 | $207 | $61K | 10b5-1 plan | Form 4 ↗ | |
| Plewman Patrick | DGX | Sell F | February 18, 2026 | February 20, 2026 | 2d | 244 | $210 | $51K | 10b5-1 plan | Form 4 ↗ | |
| Plewman Patrick | DGX | Other A | February 18, 2026 | February 20, 2026 | 2d | 1,952 | — | — | 10b5-1 plan | Form 4 ↗ | |
| SAMAD SAM | DGX | Other A | February 18, 2026 | February 20, 2026 | 2d | 18,303 | — | — | derivative | Form 4 ↗ | |
| SAMAD SAM | DGX | Other A | January 28, 2026 | February 20, 2026 | 23d | 69 | $184 | $13K | late | Form 4 ↗ | |
| SAMAD SAM | DGX | Sell F | February 18, 2026 | February 20, 2026 | 2d | 1,010 | $207 | $209K | Form 4 ↗ | ||
| SAMAD SAM | DGX | Sell F | February 18, 2026 | February 20, 2026 | 2d | 855 | $210 | $180K | Form 4 ↗ | ||
| SAMAD SAM | DGX | Other A | February 18, 2026 | February 20, 2026 | 2d | 3,965 | — | — | Form 4 ↗ | ||
| PREVOZNIK MICHAEL E | DGX | Other A | February 18, 2026 | February 20, 2026 | 2d | 9,289 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| PREVOZNIK MICHAEL E | DGX | Sell S | February 19, 2026 | February 20, 2026 | 1d | 1,111 | $205 | $228K | 10b5-1 plan | Form 4 ↗ | |
| PREVOZNIK MICHAEL E | DGX | Sell F | February 18, 2026 | February 20, 2026 | 2d | 347 | $207 | $72K | 10b5-1 plan | Form 4 ↗ | |
| PREVOZNIK MICHAEL E | DGX | Sell F | February 18, 2026 | February 20, 2026 | 2d | 301 | $210 | $63K | 10b5-1 plan | Form 4 ↗ | |
| PREVOZNIK MICHAEL E | DGX | Other A | February 18, 2026 | February 20, 2026 | 2d | 2,013 | — | — | 10b5-1 plan | Form 4 ↗ | |
| Davis J. E. | DGX | Other A | February 18, 2026 | February 20, 2026 | 2d | 73,225 | — | — | derivative | Form 4 ↗ | |
| Davis J. E. | DGX | Sell F | February 18, 2026 | February 20, 2026 | 2d | 3,788 | $207 | $784K | Form 4 ↗ | ||
| Davis J. E. | DGX | Sell F | February 18, 2026 | February 20, 2026 | 2d | 2,396 | $210 | $503K | Form 4 ↗ | ||
| Davis J. E. | DGX | Other A | February 18, 2026 | February 20, 2026 | 2d | 15,857 | — | — | Form 4 ↗ | ||
| Doherty Catherine T. | DGX | Other A | February 18, 2026 | February 20, 2026 | 2d | 13,514 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Doherty Catherine T. | DGX | Sell S | February 19, 2026 | February 20, 2026 | 1d | 1,433 | $205 | $294K | 10b5-1 plan | Form 4 ↗ | |
| Doherty Catherine T. | DGX | Sell F | February 18, 2026 | February 20, 2026 | 2d | 728 | $207 | $151K | 10b5-1 plan | Form 4 ↗ | |
| Doherty Catherine T. | DGX | Sell F | February 18, 2026 | February 20, 2026 | 2d | 433 | $210 | $91K | 10b5-1 plan | Form 4 ↗ | |
| Doherty Catherine T. | DGX | Other A | February 18, 2026 | February 20, 2026 | 2d | 2,928 | — | — | 10b5-1 plan | Form 4 ↗ | |
| KUPPUSAMY KARTHIK | DGX | Other A | February 18, 2026 | February 20, 2026 | 2d | 9,853 | — | — | derivative | Form 4 ↗ | |
| KUPPUSAMY KARTHIK | DGX | Other L | January 28, 2026 | February 20, 2026 | 23d | 16 | $184 | $2,936 | late | Form 4 ↗ | |
| KUPPUSAMY KARTHIK | DGX | Other A | February 18, 2026 | February 20, 2026 | 2d | 2,135 | — | — | Form 4 ↗ | ||
| KUPPUSAMY KARTHIK | DGX | Sell F | February 18, 2026 | February 20, 2026 | 2d | 259 | $207 | $54K | Form 4 ↗ | ||
| KUPPUSAMY KARTHIK | DGX | Sell F | February 18, 2026 | February 20, 2026 | 2d | 252 | $210 | $53K | Form 4 ↗ | ||
| DELANEY MARK E | DGX | Other A | February 18, 2026 | February 20, 2026 | 2d | 7,332 | — | — | derivative | Form 4 ↗ | |
| DELANEY MARK E | DGX | Other L | January 28, 2026 | February 20, 2026 | 23d | 15 | $184 | $2,753 | late | Form 4 ↗ | |
| DELANEY MARK E | DGX | Sell F | February 18, 2026 | February 20, 2026 | 2d | 230 | $207 | $48K | Form 4 ↗ | ||
| DELANEY MARK E | DGX | Sell F | February 18, 2026 | February 20, 2026 | 2d | 205 | $210 | $43K | Form 4 ↗ | ||
| DELANEY MARK E | DGX | Other A | February 18, 2026 | February 20, 2026 | 2d | 1,586 | — | — | Form 4 ↗ | ||
| Deppe Michael J | DGX | Other A | February 18, 2026 | February 20, 2026 | 2d | 1,688 | — | — | derivative | Form 4 ↗ | |
| Deppe Michael J | DGX | Sell F | February 18, 2026 | February 20, 2026 | 2d | 99 | $207 | $20K | Form 4 ↗ | ||
| Deppe Michael J | DGX | Sell F | February 18, 2026 | February 20, 2026 | 2d | 83 | $210 | $17K | Form 4 ↗ | ||
| Deppe Michael J | DGX | Other A | February 18, 2026 | February 20, 2026 | 2d | 366 | — | — | Form 4 ↗ | ||
| Lassiter Wright III | DGX | Other L | January 28, 2026 | February 20, 2026 | 23d | 7 | $184 | $1,285 | late | Form 4 ↗ | |
| CARTER ROBERT B | DGX | Other L | January 28, 2026 | February 20, 2026 | 23d | 6 | $184 | $1,101 | late | Form 4 ↗ | |
| Gregg Vicky B | DGX | Other L | January 28, 2026 | February 20, 2026 | 23d | 67 | $184 | $12K | late | Form 4 ↗ | |
| Doherty Catherine T. | DGX | Option / conversion M | February 13, 2026 | February 17, 2026 | 4d | 26,165 | $112 | $2.9M | 10b5-1 planderivative | Form 4 ↗ | |
| Doherty Catherine T. | DGX | Sell S | February 13, 2026 | February 17, 2026 | 4d | 351 | $209 | $73K | 10b5-1 plan | Form 4 ↗ | |
| Doherty Catherine T. | DGX | Sell S | February 13, 2026 | February 17, 2026 | 4d | 1,619 | $208 | $337K | 10b5-1 plan | Form 4 ↗ | |
| Doherty Catherine T. | DGX | Sell S | February 13, 2026 | February 17, 2026 | 4d | 3,500 | $207 | $725K | 10b5-1 plan | Form 4 ↗ | |
| Doherty Catherine T. | DGX | Sell S | February 13, 2026 | February 17, 2026 | 4d | 10,122 | $206 | $2.1M | 10b5-1 plan | Form 4 ↗ | |
| Doherty Catherine T. | DGX | Sell S | February 13, 2026 | February 17, 2026 | 4d | 10,573 | $205 | $2.2M | 10b5-1 plan | Form 4 ↗ | |
| Doherty Catherine T. | DGX | Option / conversion M | February 13, 2026 | February 17, 2026 | 4d | 26,165 | $112 | $2.9M | 10b5-1 plan | Form 4 ↗ | |
| Plewman Patrick | DGX | Option / conversion M | February 10, 2026 | February 12, 2026 | 2d | 5,662 | $122 | $690K | 10b5-1 planderivative | Form 4 ↗ | |
| Plewman Patrick | DGX | Sell S | February 10, 2026 | February 12, 2026 | 2d | 5,662 | $204 | $1.2M | 10b5-1 plan | Form 4 ↗ | |
| Plewman Patrick | DGX | Option / conversion M | February 10, 2026 | February 12, 2026 | 2d | 5,662 | $122 | $690K | 10b5-1 plan | Form 4 ↗ | |
| Plewman Patrick | DGX | Other A | January 28, 2026 | February 12, 2026 | 15d | 48 | $184 | $8,809 | late10b5-1 plan | Form 4 ↗ | |
| Davis J. E. | DGX | Option / conversion M | November 25, 2025 | November 28, 2025 | 3d | 55,093 | $96 | $5.3M | 10b5-1 planderivative | Form 4 ↗ | |
| Davis J. E. | DGX | Sell S | November 25, 2025 | November 28, 2025 | 3d | 4,747 | $193 | $916K | 10b5-1 plan | Form 4 ↗ | |
| Davis J. E. | DGX | Sell S | November 25, 2025 | November 28, 2025 | 3d | 41,004 | $192 | $7.9M | 10b5-1 plan | Form 4 ↗ | |
| Davis J. E. | DGX | Sell S | November 25, 2025 | November 28, 2025 | 3d | 9,342 | $192 | $1.8M | 10b5-1 plan | Form 4 ↗ | |
| Davis J. E. | DGX | Option / conversion M | November 25, 2025 | November 28, 2025 | 3d | 55,093 | $96 | $5.3M | 10b5-1 plan | Form 4 ↗ | |
| Gregg Vicky B | DGX | Sell S | November 25, 2025 | November 28, 2025 | 3d | 1,250 | $192 | $240K | Form 4 ↗ | ||
| DELANEY MARK E | DGX | Option / conversion M | November 18, 2025 | November 20, 2025 | 2d | 100 | $143 | $14K | 10b5-1 planderivative | Form 4 ↗ | |
| DELANEY MARK E | DGX | Option / conversion M | November 18, 2025 | November 20, 2025 | 2d | 7,846 | $144 | $1.1M | 10b5-1 planderivative | Form 4 ↗ | |
| DELANEY MARK E | DGX | Sell S | November 18, 2025 | November 20, 2025 | 2d | 7,946 | $187 | $1.5M | 10b5-1 plan | Form 4 ↗ | |
| DELANEY MARK E | DGX | Option / conversion M | November 18, 2025 | November 20, 2025 | 2d | 100 | $143 | $14K | 10b5-1 plan | Form 4 ↗ | |
| DELANEY MARK E | DGX | Option / conversion M | November 18, 2025 | November 20, 2025 | 2d | 7,846 | $144 | $1.1M | 10b5-1 plan | Form 4 ↗ | |
| Davis J. E. | DGX | Sell F | November 5, 2025 | November 7, 2025 | 2d | 7,143 | $176 | $1.3M | Form 4 ↗ | ||
| SAMAD SAM | DGX | Other A | October 21, 2025 | October 24, 2025 | 3d | 68 | $189 | $13K | Form 4 ↗ | ||
| Plewman Patrick | DGX | Other A | October 21, 2025 | October 24, 2025 | 3d | 46 | $189 | $8,698 | Form 4 ↗ | ||
| KUPPUSAMY KARTHIK | DGX | Other A | October 21, 2025 | October 24, 2025 | 3d | 15 | $189 | $2,836 | Form 4 ↗ | ||
| PFEIFFER GARY M | DGX | Other I | October 23, 2025 | October 24, 2025 | 1d | 4,413 | $191 | $841K | derivative | Form 4 ↗ | |
| PFEIFFER GARY M | DGX | Sell S | October 22, 2025 | October 24, 2025 | 2d | 1,482 | $182 | $270K | Form 4 ↗ | ||
| Gregg Vicky B | DGX | Other A | October 21, 2025 | October 24, 2025 | 3d | 70 | $189 | $13K | Form 4 ↗ | ||
| DELANEY MARK E | DGX | Other A | October 21, 2025 | October 24, 2025 | 3d | 15 | $189 | $2,836 | Form 4 ↗ | ||
| CARTER ROBERT B | DGX | Other A | October 21, 2025 | October 24, 2025 | 3d | 6 | $189 | $1,135 | Form 4 ↗ | ||
| RING TIMOTHY M | DGX | Other A | October 1, 2025 | October 3, 2025 | 2d | 233 | — | — | derivative | Form 4 ↗ | |
| Lassiter Wright III | DGX | Other A | October 1, 2025 | October 3, 2025 | 2d | 157 | — | — | derivative | Form 4 ↗ |
Federal contracts (USAspending, awards started in the last 180 days)
| Start date | Awarding agency | Award value | NAICS | Source |
|---|---|---|---|---|
| October 1, 2026 | Department of Veterans Affairs | $7,162,140 | 621511 | USAspending ↗ |
| September 30, 2026 | Department of Veterans Affairs | $3,500,000 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $3,110,000 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $2,700,000 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $2,700,000 | 621511 | USAspending ↗ |
| May 1, 2026 | Department of Veterans Affairs | $2,596,545 | 621511 | USAspending ↗ |
| May 1, 2026 | Department of Veterans Affairs | $2,567,101 | 621511 | USAspending ↗ |
| May 1, 2026 | Department of Veterans Affairs | $2,489,230 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $2,200,000 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $2,062,755 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $2,000,000 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $1,900,000 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $1,650,000 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $1,500,000 | 621511 | USAspending ↗ |
| June 1, 2026 | Department of Veterans Affairs | $1,496,922 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $1,465,942 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $1,399,157 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $1,388,317 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $1,260,060 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $1,162,518 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $1,092,442 | 621511 | USAspending ↗ |
| July 1, 2026 | Department of Veterans Affairs | $1,018,650 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $978,435 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $850,876 | 621511 | USAspending ↗ |
| June 1, 2026 | Department of Veterans Affairs | $850,000 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $839,965 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $785,400 | 621511 | USAspending ↗ |
| May 1, 2026 | Department of Veterans Affairs | $775,000 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $769,871 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $749,999 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $687,560 | 621511 | USAspending ↗ |
| July 1, 2026 | Department of Veterans Affairs | $675,002 | 621511 | USAspending ↗ |
| June 13, 2026 | Department of Veterans Affairs | $611,688 | 621511 | USAspending ↗ |
| June 1, 2026 | Department of Veterans Affairs | $550,000 | 621511 | USAspending ↗ |
| August 1, 2026 | Department of Health and Human Services | $500,000 | 621511 | USAspending ↗ |
| June 20, 2026 | Department of Health and Human Services | $474,993 | 621511 | USAspending ↗ |
| May 1, 2026 | Department of Veterans Affairs | $440,000 | 621511 | USAspending ↗ |
| May 1, 2026 | Department of Veterans Affairs | $433,821 | 621511 | USAspending ↗ |
| May 1, 2026 | Department of Veterans Affairs | $420,000 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $407,924 | 621511 | USAspending ↗ |
| October 1, 2026 | Department of Veterans Affairs | $400,000 | 621511 | USAspending ↗ |
| June 1, 2026 | Department of Veterans Affairs | $375,000 | 621511 | USAspending ↗ |
| June 1, 2026 | Department of Veterans Affairs | $343,500 | 621511 | USAspending ↗ |
| May 1, 2026 | Department of Veterans Affairs | $320,000 | 621511 | USAspending ↗ |
| June 1, 2026 | Department of Veterans Affairs | $270,000 | 621511 | USAspending ↗ |
| June 1, 2026 | Department of Veterans Affairs | $252,000 | 621511 | USAspending ↗ |
| May 1, 2026 | Department of Veterans Affairs | $250,000 | 621511 | USAspending ↗ |
| May 1, 2026 | Department of Veterans Affairs | $250,000 | 621511 | USAspending ↗ |
| September 29, 2026 | Department of Health and Human Services | $143,873 | 621511 | USAspending ↗ |
| May 1, 2026 | Department of Veterans Affairs | $140,000 | 621511 | USAspending ↗ |
Lobbying (Senate LDA, as client)
| Period | Registrant | Primary issue | Amount | Source |
|---|---|---|---|---|
| 2026 Q3 | FEDERAL STREET STRATEGIES, LLC | Health Issues | $50,000 | LDA ↗ |
| 2026 Q2 | QUEST DIAGNOSTICS INCORPORATED | Budget/Appropriations | $470,000 | LDA ↗ |
| 2026 Q2 | RED+BLUE STRATEGIES | Health Issues | $80,000 | LDA ↗ |
| 2026 Q2 | TARPLIN, DOWNS & YOUNG, LLC | Health Issues | $60,000 | LDA ↗ |
| 2026 Q2 | FEDERAL STREET STRATEGIES, LLC | Health Issues | $50,000 | LDA ↗ |
| 2026 Q1 | QUEST DIAGNOSTICS INCORPORATED | Health Issues | $690,000 | LDA ↗ |
| 2026 Q1 | RED+BLUE STRATEGIES | Health Issues | $80,000 | LDA ↗ |
| 2026 Q1 | TARPLIN, DOWNS & YOUNG, LLC | Health Issues | $60,000 | LDA ↗ |
| 2026 Q1 | FEDERAL STREET STRATEGIES, LLC | Health Issues | $50,000 | LDA ↗ |
| 2025 Q4 | QUEST DIAGNOSTICS INCORPORATED | Budget/Appropriations | $350,000 | LDA ↗ |
| 2025 Q4 | RED+BLUE STRATEGIES | Health Issues | $80,000 | LDA ↗ |
| 2025 Q4 | TARPLIN, DOWNS & YOUNG, LLC | Health Issues | $60,000 | LDA ↗ |
| 2025 Q4 | FEDERAL STREET STRATEGIES, LLC | Medicare/Medicaid | $50,000 | LDA ↗ |
| 2025 Q3 | QUEST DIAGNOSTICS INCORPORATED | Health Issues | $310,000 | LDA ↗ |
| 2025 Q3 | RED+BLUE STRATEGIES | Health Issues | $80,000 | LDA ↗ |
| 2025 Q3 | TARPLIN, DOWNS & YOUNG, LLC | Health Issues | $60,000 | LDA ↗ |
| 2025 Q3 | FEDERAL STREET STRATEGIES, LLC | Medicare/Medicaid | $50,000 | LDA ↗ |
| 2025 Q2 | QUEST DIAGNOSTICS INCORPORATED | Health Issues | $330,000 | LDA ↗ |
| 2025 Q1 | QUEST DIAGNOSTICS INCORPORATED | Health Issues | $330,000 | LDA ↗ |
Related companies
Companies whose stock was traded by the same people who traded DGX, by number of filers in common. It shows overlap in public filings and nothing else.
- ADOBE INC. ADBE 3 filers in common
- Accenture plc ACN 3 filers in common
- CHEVRON CORP CVX 3 filers in common
- PROCTER & GAMBLE Co PG 3 filers in common
- WELLS FARGO & COMPANY/MN WFC 3 filers in common
- BRISTOL MYERS SQUIBB CO BMY 3 filers in common
- MICROSOFT CORP MSFT 3 filers in common
- 3M CO MMM 3 filers in common
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Federal contracts: how to read USAspending data Obligation = money the government has committed. Outlay = money actually paid.
- Lobbying disclosure reports Reports are due about 20 days after each quarter ends.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| House Clerk, periodic transaction reports | 4 | 6 | December 11, 2025 | August 13, 2026 | House Clerk search |
| Senate eFD, periodic transaction reports | 1 | 2 | July 21, 2026 | July 21, 2026 | Senate eFD search |
| SEC EDGAR, Form 4 | 76 | 148 | October 3, 2025 | October 2, 2026 | Form 4 list on EDGAR |
| USAspending, federal contract awards | 76 awards | — | — | — | USAspending |
| Lobbying disclosure filings | 19 filings | — | — | — | LDA.gov search |
Site built October 22, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Insiders and their transactions come from SEC EDGAR Form 4 filings for this issuer. Contracts and lobbying are matched by exact normalized name (suffixes like Inc./Corp. ignored) to USAspending recipients and LDA clients — a conservative match that misses subsidiaries on purpose. See methodology and corrections.
Not investment advice. Public records shown as filed; no recommendation is made or implied.