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Quest Diagnostics

960 hedge funds and large institutions have $17.3B invested in Quest Diagnostics in 2025 Q1 according to their latest regulatory filings, with 144 funds opening new positions, 315 increasing their positions, 334 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: 334

39% less call options, than puts

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

Holders
960
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
Name Holding Trade Value Shares
Change
Change in
Stake
201
$4.7M
202
$4.67M
203
$4.64M
204
$4.63M
205
$4.61M
206
$4.55M
207
$4.5M
208
$4.43M
209
$4.37M
210
$4.33M
211
$4.32M
212
$4.31M
213
$4.29M
214
$4.29M
215
$4.28M
216
$4.28M
217
$4.27M
218
$4.2M
219
$4.04M
220
$3.99M
221
$3.95M
222
$3.94M
223
$3.92M
224
$3.9M
225
$3.9M