DGX

Quest Diagnostics Inc$209.41 3.79%
Health CareUSCUSIP 74834L100· EOD Jul 16, 2026◍ Confluence graph
Tracked 13F Holders
671
+29 QoQ
13F Value (tracked)
$18.6B
Insider Net · 180d
-$16.4M
0↑ 5↓
Recent Filings
15
Smart-money sentimentBearish
BearishBullish
13F funds (latest Q)27 adding · 21 trimming
Insider net (180d)-$16.4M

Price & smart-money activity

$209.41 3.79%5Y +53.7%
$113.45$140.91$168.38$195.84$223.30202120222023202420252026755152766211282810172
Hover for who · click for detailEnd-of-day closing prices52w $166.45 – $216.02
Build

Ask your agent what changed in DGX

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/DGX/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for DGX.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

Top institutional holders

671 tracked 13F filers
#FundPosition valueSharesLast moveAs ofHistory
1BlackRock, Inc.
$1.8B
9.2M
−3.0%
Reduced · −287K sh
Q1 2026
2VANGUARD CAPITAL MANAGEMENT LLC
$1.4B
7.1M
New
+7.1M sh
Q1 2026
3PRICE T ROWE ASSOCIATES INC /MD/
$1.2B
6.3M
~0%
Added · +830 sh
Q1 2026
4VANGUARD PORTFOLIO MANAGEMENT LLC
$1.2B
6.1M
New
+6.1M sh
Q1 2026
5STATE STREET CORP
$1.1B
5.4M
~0%
Reduced · −2K sh
Q1 2026
6Boston Partners
$786.7M
4.0M
+2.5%
Added · +99K sh
Q1 2026
7JPMORGAN CHASE & CO
$758.4M
3.8M
−7.2%
Reduced · −299K sh
Q1 2026
8GEODE CAPITAL MANAGEMENT, LLC
$602.7M
3.1M
+1.9%
Added · +58K sh
Q1 2026
9MORGAN STANLEY
$486.0M
2.5M
−7.9%
Reduced · −214K sh
Q1 2026
10EdgePoint Investment Group Inc.
$439.8M
2.2M
+35%
Added · +583K sh
Q1 2026
11DIMENSIONAL FUND ADVISORS LP
$382.1M
1.9M
+0.9%
Added · +18K sh
Q1 2026
12Grantham, Mayo, Van Otterloo & Co. LLC
$369.0M
1.9M
+3.7%
Added · +67K sh
Q1 2026
13VICTORY CAPITAL MANAGEMENT INC
$361.8M
1.8M
−13%
Reduced · −280K sh
Q1 2026
14WELLS FARGO & COMPANY/MN
$345.5M
1.8M
−0.3%
Reduced · −6K sh
Q1 2026
15BANK OF AMERICA CORP /DE/
$343.5M
1.8M
+8.0%
Added · +130K sh
Q1 2026
16GOLDMAN SACHS GROUP INC
$264.3M
1.3M
−21%
Reduced · −360K sh
Q1 2026
17NORGES BANK
$229.5M
1.3M
−0.2%
Reduced · −3K sh
Q4 2025
18NORTHERN TRUST CORP
$218.4M
1.1M
+3.3%
Added · +36K sh
Q1 2026
19FMR LLC
$184.7M
942K
−22%
Reduced · −260K sh
Q1 2026
20AMERICAN CENTURY COMPANIES INC
$170.0M
867K
−0.4%
Reduced · −3K sh
Q1 2026
21UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME
$165.9M
847K
~0%
Reduced · −332 sh
Q1 2026
22AMERIPRISE FINANCIAL INC
$158.3M
807K
−0.7%
Reduced · −6K sh
Q1 2026
23M&G Plc
$157.8M
805K
−15%
Reduced · −140K sh
Q1 2026
24CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$149.1M
761K
+1.3%
Added · +10K sh
Q1 2026
25Legal & General Group Plc
$144.4M
737K
−0.8%
Reduced · −6K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Fund activity: latest quarter

Opened (NEW)
2
funds
Added
25
funds
Reduced
21
funds
Exited
0
funds

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$16.4M
5 insiders
Net
-$16.4M
19 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Jul 1, 2026WENTWORTH TIMOTHY CDirectorGrant (A)144$0
Jun 4, 2026KUPPUSAMY KARTHIKSVP, Clinical SolutionsOption exercise (M)3K$424K
Jun 4, 2026KUPPUSAMY KARTHIKSVP, Clinical SolutionsOption exercise (M)5K$588K
Jun 4, 2026KUPPUSAMY KARTHIKSVP, Clinical SolutionsSell (S)8K$1.6M
Jun 4, 2026KUPPUSAMY KARTHIKSVP, Clinical SolutionsOption exercise (M)3K$424K
Jun 4, 2026KUPPUSAMY KARTHIKSVP, Clinical SolutionsOption exercise (M)5K$588K
Jun 1, 2026Davis J. E.CEO and President, DirectorSell (S)10K$1.9M
May 20, 2026CARTER ROBERT BDirectorGrant (A)1K$0
May 20, 2026Diaz LuisDirectorGrant (A)1K$0
May 20, 2026Doi TraceyDirectorGrant (A)1K$0
May 20, 2026MORRISON DENISE MDirectorGrant (A)1K$0
May 20, 2026Gregg Vicky BDirectorGrant (A)1K$0

Institutional ownership over time

668 funds+172 since Q3 2024
0334668Q3 2024Q1 2025Q3 2025Q1 2026
funds holding aggregate valuelatest $18.3B

Funds that own DGX also own

CompanyCo-held byCombined value
AMAZON.COM INCAMZN336 funds$193.7B
ALPHABET INC-CL AGOOGL336 funds$163.7B
META PLATFORMS INC-CLASS AMETA336 funds$109.1B
NVIDIA CORPNVDA335 funds$359.1B
APPLE INCAAPL335 funds$281.1B
MICROSOFT CORPMSFT335 funds$265.1B
ELI LILLY & COLLY331 funds$71.0B
JPMORGAN CHASE & COJPM331 funds$65.8B
ALPHABET INC-CL CGOOG330 funds$123.0B
CISCO SYSTEMS INCCSCO327 funds$33.4B
BROADCOM INCAVGO326 funds$145.2B
JOHNSON & JOHNSONJNJ326 funds$51.8B

Ranked by how many of DGX's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).

Recent filings

15 shown

Browse more

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for DGX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.