Quest Diagnostics
1,051 hedge funds and large institutions have $20B invested in Quest Diagnostics in 2026 Q1 according to their latest regulatory filings, with 121 funds opening new positions, 347 increasing their positions, 373 reducing their positions, and 89 closing their positions.
New
Increased
Maintained
Reduced
Closed
more call options, than puts
Call options by funds: $ | Put options by funds: $
more funds holding in top 10
Funds holding in top 10: →
more first-time investments, than exits
New positions opened: | Existing positions closed:
more capital invested
Capital invested by funds: $ → $
0% more funds holding
Funds holding: 1,046 → 1,051 (+5)
7% less repeat investments, than reductions
Existing positions increased: 347 | Existing positions reduced: 373
2.74% less ownership
Funds ownership: 95.54% → 92.8% (-2.7%)
Holders
1,051
Holding in Top 10
4
Calls
$96.9M
Puts
$40.5M
Top Buyers
| 1 | +$113M | |
| 2 | +$58.2M | |
| 3 | +$49M | |
| 4 |
CCMG
Clark Capital Management Group
Philadelphia,
Pennsylvania
|
+$45.7M |
| 5 |
Barclays
London,
United Kingdom
|
+$45.1M |
Top Sellers
| 1 | -$80.1M | |
| 2 | -$77.7M | |
| 3 | -$70M | |
| 4 |
FMI
Fiduciary Management Inc
Milwaukee,
Wisconsin
|
-$63.3M |
| 5 |
FGP
Freestone Grove Partners
San Francisco,
California
|
-$59M |