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Quest Diagnostics

1,062 hedge funds and large institutions have $20.1B invested in Quest Diagnostics in 2026 Q1 according to their latest regulatory filings, with 121 funds opening new positions, 349 increasing their positions, 381 reducing their positions, and 87 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: 24 (+2)

39% more first-time investments, than exits

New positions opened: 121 | Existing positions closed: 87

9% more capital invested

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

1% more funds holding

Funds holding: 1,0481,062 (+14)

8% less repeat investments, than reductions

Existing positions increased: 349 | Existing positions reduced: 381

2.22% less ownership

Funds ownership: 95.55%93.33% (-2.2%)

Holders
1,062
Holders Change
+14
Holders Change %
+1.34%
% of All Funds
13.08%
Holding in Top 10
4
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+100%
% of All Funds
0.05%
New
121
Increased
349
Reduced
381
Closed
87
Calls
$96.9M
Puts
$40.5M
Net Calls
+$56.4M
Net Calls Change
+$39M
Name Holding Trade Value Shares
Change
Change in
Stake
WA
1051
WestEnd Advisors
North Carolina
$588
SA
1052
Seneschal Advisors
Washington
$588 +$194 +1 +50%
NSIM
1053
North Star Investment Management
Illinois
$588 +$583 +3 New
SIM
1054
Synergy Investment Management
Florida
$588 +$583 +3 New
RPA
1055
Redwood Park Advisors
California
$392 -$389 -2 -50%
CWM
1056
Copia Wealth Management
Oregon
$392
CW
1057
Curio Wealth
Maryland
$392 +$389 +2 New
NL
1058
NorthAvenue LLC
Ohio
$196
DCM
1059
Davis Capital Management
Florida
$196 +$194 +1 New
IAS
1060
IMA Advisory Services
Colorado
$195
KFG
1061
Kingdom Financial Group
Arizona
$123
LAS
1062
Lloyd Advisory Services
Georgia
$123 +$194 +1 New
Norges Bank
1063
Norges Bank
Norway
-$230M -1,322,663 Closed
Skandinaviska Enskilda Banken (SEB)
1064
Skandinaviska Enskilda Banken (SEB)
Sweden
-$24.3M -139,936 Closed
Point72 Asset Management
1065
Point72 Asset Management
Connecticut
-$17.4M -100,301 Closed
DCP
1066
Distillate Capital Partners
Illinois
-$15.4M -88,756 Closed
IAIM
1067
International Assets Investment Management
Florida
-$91.6K -55,228 Closed
Two Sigma Investments
1068
Two Sigma Investments
New York
-$8.33M -47,984 Closed
TC
1069
TwinBeech Capital
New York
-$5.02M -28,913 Closed
VanEck Associates
1070
VanEck Associates
New York
-$4.51M -25,977 Closed
AI
1071
Atom Investors
Texas
-$4.17M -24,043 Closed
Verition Fund Management
1072
Verition Fund Management
Connecticut
-$3.95M -22,766 Closed
A
1073
AlphaQuest
New York
-$3.85M -22,173 Closed
QT
1074
Quantbot Technologies
New York
-$3.74M -21,544 Closed
FAF
1075
Första AP-fonden
Sweden
-$3.64M -21,000 Closed