Quest Diagnostics
1,002 hedge funds and large institutions have $19.9B invested in Quest Diagnostics in 2025 Q3 according to their latest regulatory filings, with 114 funds opening new positions, 357 increasing their positions, 343 reducing their positions, and 82 closing their positions.
New
Increased
Maintained
Reduced
Closed
more first-time investments, than exits
New positions opened: | Existing positions closed:
more funds holding
Funds holding: →
more repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
more capital invested
Capital invested by funds: $ → $
2.44% less ownership
Funds ownership: 96.17% → 93.73% (-2.4%)
12% less call options, than puts
Call options by funds: $98.2M | Put options by funds: $112M
25% less funds holding in top 10
Funds holding in top 10: 4 → 3 (-1)
Holders
1,002
Holding in Top 10
3
Calls
$98.2M
Puts
$112M
Top Buyers
| 1 | +$177M | |
| 2 | +$151M | |
| 3 | +$77M | |
| 4 |
Goldman Sachs
New York
|
+$74.2M |
| 5 |
Marshall Wace
London,
United Kingdom
|
+$62.5M |
Top Sellers
| 1 | -$108M | |
| 2 | -$82.6M | |
| 3 | -$73.8M | |
| 4 |
UBS AM
Chicago,
Illinois
|
-$55.9M |
| 5 |
UBS Group
Zurich,
Switzerland
|
-$55.8M |
