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Quest Diagnostics

962 hedge funds and large institutions have $17.3B invested in Quest Diagnostics in 2025 Q1 according to their latest regulatory filings, with 143 funds opening new positions, 315 increasing their positions, 336 reducing their positions, and 62 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

more ownership

Funds ownership:

0% more funds holding in top 10

Funds holding in top 10: 11 (0)

6% less repeat investments, than reductions

Existing positions increased: 315 | Existing positions reduced: 336

39% less call options, than puts

Call options by funds: $83.5M | Put options by funds: $136M

Holders
962
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$83.5M
Puts
$136M
Net Calls
Net Calls Change

Top Sellers

1 -$105M
2 -$56.7M
3 -$51.4M
4
Marshall Wace
Marshall Wace
United Kingdom
-$51.4M
5
Prudential Financial
Prudential Financial
New Jersey
-$44.8M
Name Holding Trade Value Shares
Change
Change in
Stake
601
$407K
602
$401K
603
$398K
604
$398K
605
$398K
606
$397K
607
$396K
608
$390K
609
$389K
610
$386K
611
$385K
612
$384K
613
$380K
614
$377K
615
$376K
616
$374K
617
$373K
618
$370K
619
$369K
620
$369K
621
$361K
622
$359K
623
$355K
624
$355K
625
$355K