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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
401
$1.2M
402
$1.17M
403
$1.17M
404
$1.17M
405
$1.17M
406
$1.17M
407
$1.16M
408
$1.15M
409
$1.15M
410
$1.15M
411
$1.13M
412
$1.12M
413
$1.1M
414
$1.1M
415
$1.1M
416
$1.09M
417
$1.08M
418
$1.08M
419
$1.08M
420
$1.07M
421
$1.06M
422
$1.05M
423
$1.04M
424
$1.04M
425
$1.03M