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Quest Diagnostics

1,048 hedge funds and large institutions have $18.4B invested in Quest Diagnostics in 2025 Q4 according to their latest regulatory filings, with 148 funds opening new positions, 350 increasing their positions, 345 reducing their positions, and 90 closing their positions.

New
Increased
Maintained
Reduced
Closed

64% more first-time investments, than exits

New positions opened: 148 | Existing positions closed: 90

30% more call options, than puts

Call options by funds: $74.8M | Put options by funds: $57.4M

4% more funds holding

Funds holding: 1,0051,048 (+43)

1.7% more ownership

Funds ownership: 93.86%95.55% (+1.7%)

1% more repeat investments, than reductions

Existing positions increased: 350 | Existing positions reduced: 345

8% less capital invested

Capital invested by funds: $20B → $18.4B (-$1.56B)

33% less funds holding in top 10

Funds holding in top 10: 32 (-1)

Holders
1,048
Holders Change
+43
Holders Change %
+4.28%
% of All Funds
12.75%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.02%
New
148
Increased
350
Reduced
345
Closed
90
Calls
$74.8M
Puts
$57.4M
Net Calls
+$17.5M
Net Calls Change
+$31.2M
Name Holding Trade Value Shares
Change
Change in
Stake
RWS
1026
Retirement Wealth Solutions
Wisconsin
$868 -$182 -1 -17%
KG
1027
Kilter Group
New York
$868
HFS
1028
Hughes Financial Services
Virginia
$868 +$364 +2 +67%
RPA
1029
Redwood Park Advisors
California
$695
WWA
1030
Wealth Watch Advisors
Colorado
$694 -$546 -3 -43%
EP
1031
Essential Partners
California
$694
IWP
1032
IAG Wealth Partners
Wisconsin
$694
UFF
1033
USA Financial Formulas
Michigan
$694 +$728 +4 New
CJ
1034
Caitlin John
Michigan
$564
PWA
1035
Physician Wealth Advisors
Utah
$521 -$4.92K -27 -90%
MAM
1036
Marquette Asset Management
Minnesota
$521 -$1.64K -9 -75%
ACA
1037
American Capital Advisory
Idaho
$521
WA
1038
WestEnd Advisors
North Carolina
$521
OC
1039
Optima Capital
Oregon
$521 +$546 +3 New
SA
1040
Seneschal Advisors
Washington
$348
WA
1041
Westfuller Advisors
New York
$347 -$4.37K -24 -92%
CIA
1042
Cape Investment Advisory
Georgia
$347
CWM
1043
Copia Wealth Management
Oregon
$347
SRCM
1044
Signature Resources Capital Management
California
$347 +$364 +2 New
LSA
1045
Leonteq Securities AG
Switzerland
$174
NL
1046
NorthAvenue LLC
Ohio
$174 +$182 +1 New
IAS
1047
IMA Advisory Services
Colorado
$173
KFG
1048
Kingdom Financial Group
Arizona
$109 +$182 +1 New
8KM
1049
8 Knots Management
Texas
-$52.5M -275,344 Closed
RI
1050
RTW Investments
New York
-$47.6M -250,000 Closed