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Quest Diagnostics

967 hedge funds and large institutions have $17.5B invested in Quest Diagnostics in 2025 Q1 according to their latest regulatory filings, with 144 funds opening new positions, 317 increasing their positions, 336 reducing their positions, and 61 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: 317 | Existing positions reduced: 336

39% less call options, than puts

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

Holders
967
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
476
$761K
477
$759K
478
$758K
479
$752K
480
$748K
481
$724K
482
$720K
483
$719K
484
$716K
485
$708K
486
$706K
487
$696K
488
$688K
489
$687K
490
$683K
491
$680K
492
$678K
493
$677K
494
$677K
495
$676K
496
$674K
497
$674K
498
$672K
499
$669K
500
$669K