We are live on ! Find out more
DGX icon

Quest Diagnostics

1,048 hedge funds and large institutions have $18.4B invested in Quest Diagnostics in 2025 Q4 according to their latest regulatory filings, with 148 funds opening new positions, 350 increasing their positions, 345 reducing their positions, and 90 closing their positions.

New
Increased
Maintained
Reduced
Closed

64% more first-time investments, than exits

New positions opened: 148 | Existing positions closed: 90

30% more call options, than puts

Call options by funds: $74.8M | Put options by funds: $57.4M

4% more funds holding

Funds holding: 1,0051,048 (+43)

1.7% more ownership

Funds ownership: 93.86%95.55% (+1.7%)

1% more repeat investments, than reductions

Existing positions increased: 350 | Existing positions reduced: 345

8% less capital invested

Capital invested by funds: $20B → $18.4B (-$1.56B)

33% less funds holding in top 10

Funds holding in top 10: 32 (-1)

Holders
1,048
Holders Change
+43
Holders Change %
+4.28%
% of All Funds
12.75%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.02%
New
148
Increased
350
Reduced
345
Closed
90
Calls
$74.8M
Puts
$57.4M
Net Calls
+$17.5M
Net Calls Change
+$31.2M
Name Holding Trade Value Shares
Change
Change in
Stake
AAIM
201
American Assets Investment Management
California
$5.55M
SIA
202
SGL Investment Advisors
Montana
$5.48M +$81.9K +450 +2%
Fidelity International
203
Fidelity International
Bermuda
$5.37M +$2.12M +11,630 +60%
ASRS
204
Arizona State Retirement System
Arizona
$5.34M -$389K -2,139 -6%
Susquehanna International Group
205
Susquehanna International Group
Pennsylvania
$5.31M +$2.49M +13,696 +81%
YIH
206
Y-Intercept (HK)
Hong Kong
$5.19M +$5.45M +29,905 New
ATC
207
Argent Trust Co
Tennessee
$5.18M +$64.6K +355 +1%
TFA
208
Toth Financial Advisory
Virginia
$5.13M +$497K +2,731 +10%
CNB
209
Czech National Bank
Czech Republic
$5.09M +$170K +932 +3%
Rockefeller Capital Management
210
Rockefeller Capital Management
New York
$5.09M -$13.8M -75,894 -72%
SOMRS
211
State of Michigan Retirement System
Michigan
$5.05M -$200K -1,100 -4%
ILCM
212
Ivy Lane Capital Management
Florida
$5.03M
TC
213
TwinBeech Capital
New York
$5.02M +$5.26M +28,913 New
Cetera Investment Advisers
214
Cetera Investment Advisers
Illinois
$5.02M -$71.2K -391 -1%
BTW
215
Boston Trust Walden
Massachusetts
$5.01M -$136K -745 -3%
TG
216
TCW Group
California
$4.98M +$388K +2,131 +8%
ProShare Advisors
217
ProShare Advisors
Maryland
$4.93M +$268K +1,473 +5%
IMRF
218
Illinois Municipal Retirement Fund
Illinois
$4.88M +$858K +4,710 +20%
OAM
219
Occidental Asset Management
California
$4.67M +$160K +881 +3%
SFA
220
Sequoia Financial Advisors
Ohio
$4.63M +$612K +3,359 +14%
CYG
221
Clean Yield Group
Vermont
$4.63M +$4.37K +24 +0.1%
TAM
222
Trillium Asset Management
Massachusetts
$4.63M -$984K -5,403 -17%
MIM
223
MetLife Investment Management
New Jersey
$4.63M -$194K -1,067 -4%
Comerica Bank
224
Comerica Bank
Texas
$4.59M -$125K -686 -3%
IIM
225
INTECH Investment Management
Florida
$4.57M -$3.14M -17,233 -40%