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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: 1,005 → 1,048 (+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: 3 → 2 (-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
Top Buyers
| 1 |
EIG
EdgePoint Investment Group
Toronto,
Ontario, Canada
|
+$148M |
| 2 |
Goldman Sachs
New York
|
+$117M |
| 3 |
UBS Group
Zurich,
Switzerland
|
+$82M |
| 4 |
Morgan Stanley
New York
|
+$74M |
| 5 |
D.E. Shaw & Co
New York
|
+$59.9M |
Top Sellers
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
-$244M |
| 2 |
T. Rowe Price Associates
Baltimore,
Maryland
|
-$129M |
| 3 |
BlackRock
New York
|
-$98.8M |
| 4 |
Neuberger Berman Group
New York
|
-$86.4M |
| 5 |
Marshall Wace
London,
United Kingdom
|
-$84.5M |
