Also trades as: 0KSX.L (LSE) · $vol 0M
DGX Smart Money
Quest Diagnostics Incorporated
1W: +3.4%
1M: +3.2%
3M: +3.0%
YTD: +40.4%
1Y: +32.6%
3Y: +105.8%
5Y: +83.1%
$242.56
-0.39 (-0.16%)
After Hours: $244.53 (+1.97, +0.81%)
Weekly Expected Move ±2.8%
$228
$235
$242
$249
$255
Credit Risk of going bust: lower than 83% of companies Debt: 19.0% of company value Bonds: $173.4M held by 208 funds, 54 bp over Treasuries → details ▾
Of US companies ranked in the safest four tenths, about 1 in 3,500 filed for bankruptcy within a year (2020-2025).
If the stock fell to about $3.08 (down 99%), Quest Diagnostics Incorporated would be worth roughly what it owes.
Total debt $6.29B against a stock market value of $26.82B.
Distance to default 10.60 (Merton model): prices to 2026-10-26, balance sheet 2026-09-30, debt counted $3.24B (short-term plus half of long-term), stock volatility 23.6%; Altman Z'' 4.04. A ranking and a back-test, not a forecast.
Bond figures are fund-reported marks (SEC N-PORT) as of Jul 2026. How these are computed.
If the stock fell to about $3.08 (down 99%), Quest Diagnostics Incorporated would be worth roughly what it owes.
Total debt $6.29B against a stock market value of $26.82B.
Distance to default 10.60 (Merton model): prices to 2026-10-26, balance sheet 2026-09-30, debt counted $3.24B (short-term plus half of long-term), stock volatility 23.6%; Altman Z'' 4.04. A ranking and a back-test, not a forecast.
Bond figures are fund-reported marks (SEC N-PORT) as of Jul 2026. How these are computed.
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🏦 Institutional Activity
Latest: Q2 20261,173
Institutions Holding
+23 vs prior
77.7%
Ownership
+8.61%
121
New
428
Increased
417
Reduced
69
Closed
👔 Insider Trades
25 records| Date | Name | Title | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-10-21 | MAIN TIMOTHY L | director | L-L | 18 | $235.94 | $4K | Filing |
| 2026-10-21 | Plewman Patrick | officer: svp for diagnostic services | L-L | 41 | $235.94 | $10K | Filing |
| 2026-10-21 | Lassiter Wright III | director | L-L | 6 | $235.96 | $1K | Filing |
| 2026-10-21 | KUPPUSAMY KARTHIK | officer: svp, clinical solutions | L-L | 33 | $235.94 | $8K | Filing |
| 2026-10-21 | Gregg Vicky B | director | A-Grant/Award | 63 | $235.94 | $15K | Filing |
| 2026-10-21 | SAMAD SAM | officer: executive vice president & cfo | A-Grant/Award | 90 | $235.94 | $21K | Filing |
| 2026-10-21 | CARTER ROBERT B | director | L-L | 10 | $235.93 | $2K | Filing |
| 2026-10-21 | DELANEY MARK E | officer: svp & chief commercial officer | L-L | 25 | $235.94 | $6K | Filing |
| 2026-09-01 | Davis J. E. | officer: ceo and president | S-Sale | 10,000 | $242.72 | $2.4M | Filing |
| 2026-08-28 | PREVOZNIK MICHAEL E | officer: svp & general counsel | S-Sale | 430 | $244.51 | $105K | Filing |
| 2026-08-28 | PREVOZNIK MICHAEL E | officer: svp & general counsel | S-Sale | 16,010 | $242.88 | $3.9M | Filing |
| 2026-08-28 | PREVOZNIK MICHAEL E | officer: svp & general counsel | S-Sale | 6,237 | $243.63 | $1.5M | Filing |
| 2026-08-28 | PREVOZNIK MICHAEL E | officer: svp & general counsel | G-Gift | 1,000 | $— | $0 | Filing |
| 2026-07-28 | DELANEY MARK E | officer: svp & chief commercial officer | S-Sale | 1,600 | $235.18 | $376K | Filing |
| 2026-07-22 | KUPPUSAMY KARTHIK | officer: svp, clinical solutions | L-L | 37 | $206.81 | $8K | Filing |
| 2026-07-22 | DELANEY MARK E | officer: svp & chief commercial officer | L-L | 34 | $206.81 | $7K | Filing |
| 2026-07-22 | Lassiter Wright III | director | L-L | 6 | $206.81 | $1K | Filing |
| 2026-07-22 | SAMAD SAM | officer: executive vice president & cfo | A-Grant/Award | 102 | $206.81 | $21K | Filing |
| 2026-07-22 | MAIN TIMOTHY L | director | L-L | 21 | $206.81 | $4K | Filing |
| 2026-07-22 | Plewman Patrick | officer: svp for diagnostic services | L-L | 46 | $206.81 | $10K | Filing |
| 2026-07-22 | Gregg Vicky B | director | A-Grant/Award | 72 | $206.81 | $15K | Filing |
| 2026-07-22 | CARTER ROBERT B | director | L-L | 11 | $206.80 | $2K | Filing |
| 2026-06-04 | KUPPUSAMY KARTHIK | officer: svp, clinical solutions | S-Sale | 8,147 | $200.00 | $1.6M | Filing |
| 2026-06-01 | Davis J. E. | officer: ceo and president | S-Sale | 10,000 | $194.14 | $1.9M | Filing |
| 2026-05-20 | Gregg Vicky B | director | A-Grant/Award | 1,142 | $— | $0 | Filing |
🏛️ Congressional Trades
25 records| Date | Politician | Chamber | Type | Amount | Filing |
|---|---|---|---|---|---|
| 2026-09-04 | Ro Khanna | House | Buy | $1,001 - $15,000 | Filing |
| 2026-03-30 | Alan Armstrong | Senate | Buy | $1,001 - $15,000 | Filing |
| 2026-03-27 | Alan Armstrong | Senate | Buy | $1,001 - $15,000 | Filing |
| 2026-03-27 | Alan Armstrong | Senate | Buy | $1,001 - $15,000 | Filing |
| 2025-11-03 | Julie Johnson | House | Sell | $1,001 - $15,000 | Filing |
| 2025-11-03 | Julie Johnson | House | Sell | $1,001 - $15,000 | Filing |
| 2025-11-02 | Julie Johnson | House | Sell | $1,001 - $15,000 | Filing |
| 2025-10-30 | Julie Johnson | House | Sell | $1,001 - $15,000 | Filing |
| 2025-10-30 | Julie Johnson | House | Sell | $1,001 - $15,000 | Filing |
| 2025-10-30 | Julie Johnson | House | Buy | $1,001 - $15,000 | Filing |
| 2025-10-30 | Julie Johnson | House | Buy | $1,001 - $15,000 | Filing |
| 2025-10-29 | Julie Johnson | House | Buy | $1,001 - $15,000 | Filing |
| 2025-07-24 | Julia Letlow | House | Sell | $1,001 - $15,000 | Filing |
| 2025-07-23 | Julia Letlow | House | Sell | $1,001 - $15,000 | Filing |
| 2025-04-28 | Julia Letlow | House | Buy | $1,001 - $15,000 | Filing |
| 2025-04-27 | Julia Letlow | House | Buy | $1,001 - $15,000 | Filing |
| 2025-03-10 | Carol Devine Miller | House | Sell | $15,001 - $50,000 | Filing |
| 2025-03-10 | Carol Devine Miller | House | Sell | $15,001 - $50,000 | Filing |
| 2025-03-10 | Carol Devine Miller | House | Sell | $1,001 - $15,000 | Filing |
| 2025-03-09 | Carol Devine Miller | House | Sell | $15,001 - $50,000 | Filing |
| 2025-03-09 | Carol Devine Miller | House | Sell | $1,001 - $15,000 | Filing |
| 2025-01-24 | Gilbert Cisneros | House | Sell | $1,001 - $15,000 | Filing |
| 2025-01-23 | Gilbert Ray Cisneros | House | Sell | $1,001 - $15,000 | Filing |
| 2024-11-15 | Ro Khanna | House | Buy | $1,001 - $15,000 | Filing |
| 2024-04-04 | Earl Blumenauer | House | Sell | $1,001 - $15,000 | Filing |
🏦 Top Institutional Holders
20 holders| Holder | Shares | Value | Date Reported | Filing | |
|---|---|---|---|---|---|
| BlackRock, Inc. | 9,275,411 | $2.0B | +103,119 | 2026-06-30 | Filing |
| VANGUARD CAPITAL MANAGEMENT LLC | 7,233,394 | $1.5B | +87,722 | 2026-06-30 | Filing |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 6,131,045 | $1.3B | +49,645 | 2026-06-30 | Filing |
| STATE STREET CORP | 5,516,643 | $1.2B | +135,822 | 2026-06-30 | Filing |
| Boston Partners | 4,744,473 | $1.0B | +732,241 | 2026-06-30 | Filing |
| JPMORGAN CHASE & CO | 3,520,438 | $749M | -326,018 | 2026-06-30 | Filing |
| GEODE CAPITAL MANAGEMENT, LLC | 3,137,873 | $663M | +51,565 | 2026-06-30 | Filing |
| MORGAN STANLEY | 2,460,497 | $522M | -19,223 | 2026-06-30 | Filing |
| EdgePoint Investment Group Inc. | 2,247,568 | $476M | +3,699 | 2026-06-30 | Filing |
| DIMENSIONAL FUND ADVISORS LP | 1,988,048 | $421M | +38,513 | 2026-06-30 | Filing |
| BANK OF AMERICA CORP /DE | 1,935,133 | $410M | +182,231 | 2026-06-30 | Filing |
| Grantham, Mayo, Van Otterloo & Co. LLC | 1,888,207 | $400M | +5,183 | 2026-06-30 | Filing |
| WELLS FARGO & COMPANY/MN | 1,751,220 | $371M | -11,549 | 2026-06-30 | Filing |
| Davis Selected Advisers | 1,555,612 | $330M | -62,201 | 2026-06-30 | Filing |
| VICTORY CAPITAL MANAGEMENT INC | 1,550,556 | $329M | -295,780 | 2026-06-30 | Filing |
| NORGES BANK | 1,406,620 | $298M | +1,406,620 | 2026-06-30 | Filing |
| FMR LLC | 1,398,735 | $296M | +456,517 | 2026-06-30 | Filing |
| Invesco Ltd. | 1,379,115 | $292M | -259,372 | 2026-06-30 | Filing |
| NORTHERN TRUST CORP | 1,127,454 | $239M | +13,235 | 2026-06-30 | Filing |
| GOLDMAN SACHS GROUP INC | 982,694 | $208M | -366,000 | 2026-06-30 | Filing |