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DGX · Quest Diagnostics Inc
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TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475
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DGX

QUEST DIAGNOSTICS INC
HEALTHCARE SERVICES · SERVICES-MEDICAL LABORATORIES · CIK 0001022079
CONGRESS · 1FORM 144 · 3☆ WATCH
INSIDER NET · 180D
-$11.9M
open-market buys minus sells, Form 4 codes P and S
INSIDER BUYERS · 180D
0
CONGRESS BUYERS · 1Y
1
FUNDS ADDED · QTR
545
13F, latest reported quarter
REVENUE GROWTH
+11.8%
XBRL, annual
NET MARGIN
9.0%
CONVERSIONS · 180D
3
codes C/M, not in net · $3.6M priced
SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST
INSIDERS
net -$11.9M over 180 days
-$8.3M over 90 days
below 74% of Healthcare Services
CONGRESS
1 member bought in the last year
the lowest in Healthcare Services
FUNDS
545 funds added or opened last quarter
more than 99% of Healthcare Services
REVENUE
+11.8% year over year
more than 51% of Healthcare Services
MARGIN
9.0% net margin
more than 85% of Healthcare Services
BUYBACKS
$102.0M repurchased, FY to 2026-06-30
more than 68% of Healthcare Services
SHORT
3.3% of shares outstanding short · 2.7 days to cover · settled 2026-07-31
more than 55% of Healthcare Services
THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET
Insiders are net sellers: -$11.9M across 4 people in 180 days.
545 funds added or opened positions in the latest 13F quarter, of 1,111 holders.
1 member of Congress reported buying it this year.
The year, with the filings on it
Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail
TOTAL 12M RETURN +35.0%
+35.0%12M
-2%+12%+26%+40%2025-092025-102025-122026-032026-052026-072026-09 2025-11-25 · Davis J. E. sold $7.9M2025-09-23 · PREVOZNIK MICHAEL E sold $5.3M2026-08-28 · PREVOZNIK MICHAEL E sold $3.9M2026-09-01 · Davis J. E. sold $2.4M2026-02-13 · Doherty Catherine T. sold $2.2M2026-03-02 · Davis J. E. sold $2.1M2026-02-13 · Doherty Catherine T. sold $2.1M2026-06-01 · Davis J. E. sold $1.9M2025-11-25 · Davis J. E. sold $1.8M2026-06-04 · KUPPUSAMY KARTHIK sold $1.6M2026-08-28 · PREVOZNIK MICHAEL E sold $1.5M2025-11-18 · DELANEY MARK E sold $1.5M2026-02-10 · Plewman Patrick sold $1.2M2026-03-05 · Doherty Catherine T. sold $1.1M2025-11-25 · Davis J. E. sold $916.0K2026-03-05 · PREVOZNIK MICHAEL E sold $799.7K2026-02-13 · Doherty Catherine T. sold $724.8K2026-03-05 · Plewman Patrick sold $588.7K2026-03-04 · KUPPUSAMY KARTHIK sold $538.4K2026-07-28 · DELANEY MARK E sold $376.3K2026-02-13 · Doherty Catherine T. sold $337.1K2026-02-19 · Doherty Catherine T. sold $293.5K2025-10-22 · PFEIFFER GARY M sold $270.3K2025-11-25 · Gregg Vicky B sold $239.7K2026-02-19 · PREVOZNIK MICHAEL E sold $227.6K2026-02-19 · Plewman Patrick sold $196.2K2026-03-03 · Doherty Catherine T. sold $131.3K2026-03-03 · PREVOZNIK MICHAEL E sold $109.3K2026-08-28 · PREVOZNIK MICHAEL E sold $105.1K2026-03-03 · Plewman Patrick sold $85.2K2026-02-13 · Doherty Catherine T. sold $73.4K2025-09-24 · PREVOZNIK MICHAEL E sold $32.7K2025-09-26 · PREVOZNIK MICHAEL E sold $27.2K2025-09-26 · PREVOZNIK MICHAEL E sold $15.5K2026-09-01 · Davis J. E. filed to sell $2.4M2026-08-28 · PREVOZNIK MICHAEL E filed to sell $5.5M2026-07-28 · DELANEY MARK E filed to sell $376.3K
INSIDER SELLFORM 144
INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY
Live price
Daily candles from TradingView, on their licence — no filings are marked on this one
WHY THIS NAME IS ON THE DESK
Insiders have filed to sell — before selling.
The record shows a net $11.9M sold by insiders over 180 days, 545 funds added last quarter, 1 Congress member(s) bought in 12 months, $8.3M in planned Form 144 sales. Every figure is a federal filing, dated the day it became public.
Backtest this pattern Open the screener
Same sector, ranked by filing activity
Sector from the SEC's own SIC classification
NTRACSTLPGNYHIMSWGSPRVATDOCAVAHGHADUSSERABDSX
Insider transactions
Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, QUEST DIAGNOSTICS INC insiders sold a net $11.9M of stock across 140 Form 4 purchases and sales, with 0 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-06.

INSIDER
FILED
SHARES
VALUE
Davis J. E.
CEO and President
SELL
2026-09-01
10,000.0
$2.4M
PREVOZNIK MICHAEL E
SVP & General Counsel
SELL
2026-08-28
16,010.0
$3.9M
PREVOZNIK MICHAEL E
SVP & General Counsel
SELL
2026-08-28
6,237.0
$1.5M
PREVOZNIK MICHAEL E
SVP & General Counsel
SELL
2026-08-28
430.0
$105.1K
DELANEY MARK E
SVP & Chief Commercial Officer
SELL
2026-07-28
1,600.0
$376.3K
140 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 135 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders
13F · holdings as of the latest quarter funds have reported
BlackRock, Inc.
9,275,411.0 sh
$2.0B
VANGUARD CAPITAL MANAGEMENT LLC
7,233,394.0 sh
$1.5B
VANGUARD PORTFOLIO MANAGEMENT LLC
6,131,045.0 sh
$1.3B
STATE STREET CORP
5,516,643.0 sh
$1.2B
Boston Partners
4,744,473.0 sh
$1.0B
SCHEDULE 13D/G
No 5%+ ownership filings
Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.
Planned sales · Form 144
Filed before the sale — intent, not a trade
Davis J. E.
FILED 2026-09-01
$2.4M
PREVOZNIK MICHAEL E
FILED 2026-08-28
$5.5M
DELANEY MARK E
FILED 2026-07-28
$376.3K
Fund concentration
N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show
Davis Opportunity Fund
$39.7M POSITION · AS OF 2026-03-31
6.7%
Davis Balanced Fund
$14.5M POSITION · AS OF 2026-03-31
5.0%
Saratoga Large Capitalization Value Portfolio
$868.6K POSITION · AS OF 2026-02-28
4.8%
iShares U.S. Healthcare Providers ETF
$25.3M POSITION · AS OF 2026-03-31
3.9%
FMI Large Cap Fund
$37.2M POSITION · AS OF 2026-03-31
3.4%
ROCK OAK CORE GROWTH FUND
$420.4K POSITION · AS OF 2026-04-30
3.3%
SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK
Government contracts
USASpending.gov · total award ceilings over the contract's life, including awards won through subsidiaries — not annual revenue
Department Of Veterans Affairs
VISN 7 REFERENCE LAB SERVICES · 2025-10-01
$7.2M
Department Of Veterans Affairs
REF LAB SERVICES VISN 7 · 2026-04-01
$6.6M
FEDERAL AWARDS ≥ $25M IN THE LAST 90 DAYS · MATCHED VIA SAM.GOV PARENT REGISTRY
Corporate PAC
FEC · the company-connected political action committee's own receipts and spending — committee totals only, never individual donors
Quest Diagnostics Incorporated Political Action Committee
CYCLE 2026 · $349K SPENT
$379.6K
FEDERAL ELECTION COMMISSION · MATCHED BY THE PAC'S CONNECTED ORGANISATION
Fundamentals
Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all
2025-122024-122023-122022-12
REVENUE$11.0B$9.9B$9.3B$9.9B
OPERATING INCOME$1.6B$1.3B$1.3B$1.4B
NET INCOME$1.0B$921.0M$908.0M$1.0B
EPS (DILUTED)8.757.697.497.97
OPERATING CASH FLOW$1.9B$1.3B$1.3B$1.7B
CASH$420.0M$549.0M$686.0M$315.0M
LONG-TERM DEBT$5.2B$5.6B$4.4B$4.0B
BUYBACKS$450.0M$151.0M$275.0M$1.4B
DIVIDENDS PAID$353.0M$331.0M$314.0M$305.0M
SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-06 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE
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Public filings, honestly analyzed. Official US government sources in one desk — every figure carries the date it was filed, and the methodology is published, backtest included.

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© 2026 WAVEMAN · SOURCE: SEC EDGAR & OFFICIAL GOVERNMENT DATA · NOT INVESTMENT ADVICE · CHART BY TRADINGVIEW · UPDATED 2026-09-06 ALL SYSTEMS LIVE FOR MACHINES →