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Quest Diagnostics
DGX

1,067 hedge funds and large institutions have $20.1B invested in Quest Diagnostics in 2026 Q1 according to their latest regulatory filings, with 123 funds opening new positions, 351 increasing their positions, 381 reducing their positions, and 88 closing their positions.

New
Increased
Maintained
Reduced
Closed

139% more call options, than puts

Call options by funds: $96.9M | Put options by funds: $40.5M

100% more funds holding in top 10

Funds holding in top 10: 2 → 4 (+2)

40% more first-time investments, than exits

New positions opened: 123 | Existing positions closed: 88

9% more capital invested

Capital invested by funds: $18.4B → $20.1B (+$1.67B)

2% more funds holding

Funds holding: 1,050 → 1,067 (+17)

8% less repeat investments, than reductions

Existing positions increased: 351 | Existing positions reduced: 381

2.21% less ownership

Funds ownership: 95.56% → 93.34% (-2.2%)

Holders
1,067
Holders Change
+17
Holders Change %
+1.62%
% of All Funds
13.06%
Holding in Top 10
4
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+100%
% of All Funds
0.05%
New
123
Increased
351
Reduced
381
Closed
88
Calls
$96.9M
Puts
$40.5M
Net Calls
+$56.4M
Net Calls Change
+$39M

Top Buyers

Rank Fund Capital Flow
1
EIG
EdgePoint Investment Group
Ontario, Canada
+$113M
2
MDSL
M.D. Sass LLC
New York
+$58.2M
3
WP
Woodline Partners
California
+$49M
4
CCMG
Clark Capital Management Group
Pennsylvania
+$45.7M
5
Barclays
Barclays
United Kingdom
+$45.1M

Top Sellers

Rank Fund Capital Flow
1
UBS Group
UBS Group
Switzerland
-$80.1M
2
Goldman Sachs
Goldman Sachs
New York
-$70M
3
FMI
Fiduciary Management Inc
Wisconsin
-$63.3M
4
FGP
Freestone Grove Partners
California
-$59M
5
JP Morgan Chase
JP Morgan Chase
New York
-$58.2M
Name Holding Trade Value Shares
Change 		Change in
Stake
IWP
1051
IAG Wealth Partners
Wisconsin
$784 – – –
UFF
1052
USA Financial Formulas
Michigan
$784 – – –
CJ
1053
Caitlin John
Michigan
$640 – – –
WA
1054
Westfuller Advisors
New York
$590 +$194 +1 +50%
ACA
1055
American Capital Advisory
Idaho
$588 – – –
WA
1056
WestEnd Advisors
North Carolina
$588 – – –
SA
1057
Seneschal Advisors
Washington
$588 +$194 +1 +50%
NSIM
1058
North Star Investment Management
Illinois
$588 +$583 +3 New
SIM
1059
Synergy Investment Management
Florida
$588 +$583 +3 New
RPA
1060
Redwood Park Advisors
California
$392 -$389 -2 -50%
CWM
1061
Copia Wealth Management
Oregon
$392 – – –
CW
1062
Curio Wealth
Maryland
$392 +$389 +2 New
NL
1063
NorthAvenue LLC
Ohio
$196 – – –
DCM
1064
Davis Capital Management
Florida
$196 +$194 +1 New
IAS
1065
IMA Advisory Services
Colorado
$195 – – –
KFG
1066
Kingdom Financial Group
Arizona
$123 – – –
LAS
1067
Lloyd Advisory Services
Georgia
$123 +$194 +1 New
Norges Bank
1068
Norges Bank
Norway
– -$230M -1,322,663 Closed
Skandinaviska Enskilda Banken (SEB)
1069
Skandinaviska Enskilda Banken (SEB)
Sweden
– -$24.3M -139,936 Closed
Point72 Asset Management
1070
Point72 Asset Management
Connecticut
– -$17.4M -100,301 Closed
DCP
1071
Distillate Capital Partners
Illinois
– -$15.4M -88,756 Closed
IAIM
1072
International Assets Investment Management
Florida
– -$91.6K -55,228 Closed
Two Sigma Investments
1073
Two Sigma Investments
New York
– -$8.33M -47,984 Closed
TC
1074
TwinBeech Capital
New York
– -$5.02M -28,913 Closed
VanEck Associates
1075
VanEck Associates
New York
– -$4.51M -25,977 Closed
41 42
43
44 45

DGX Hedge Fund Activity: Q1 2026 in Review

1,067 of the 8,172 institutional investors tracked by Wall St. Rank reported a position in Quest Diagnostics (DGX) for Q1 2026, worth a combined $20.1B — up 9.1% from $18.4B a quarter earlier.

Buyers outnumbered sellers: 123 funds opened new DGX positions and 88 closed out — a net gain of 35 holders — while 351 added to existing stakes and 381 trimmed.

The largest buyer was EdgePoint Investment Group, adding an estimated $113M. The largest seller was UBS Group, cutting an estimated $80.1M.

  • 1,067 institutional investors held Quest Diagnostics (DGX) as of Q1 2026, up from 1,050 in Q4 2025.
  • Funds reported $20.1B of Quest Diagnostics stock for Q1 2026, up 9.1% quarter-over-quarter.
  • 123 funds opened new Quest Diagnostics positions in Q1 2026 and 88 closed out, a net change of +35 holders.
  • The largest Quest Diagnostics buyer in Q1 2026 was EdgePoint Investment Group, an estimated $113M added.
  • The largest Quest Diagnostics seller in Q1 2026 was UBS Group, an estimated $80.1M sold.

Based on aggregated 13F filings for Q1 2026.