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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
251
$3.28M
252
$3.28M
253
$3.27M
254
$3.13M
255
$3.12M
256
$3.05M
257
$3.04M
258
$3.02M
259
$3.01M
260
$2.99M
261
$2.97M
262
$2.95M
263
$2.95M
264
$2.91M
265
$2.91M
266
$2.9M
267
$2.88M
268
$2.83M
269
$2.81M
270
$2.8M
271
$2.79M
272
$2.77M
273
$2.76M
274
$2.76M
275
$2.75M