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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
WC
226
Waterloo Capital
Texas
$4.57M +$100K +551 +2%
VanEck Associates
227
VanEck Associates
New York
$4.51M +$31.7K +174 +0.7%
AAM
228
Auxier Asset Management
Oregon
$4.5M -$70.5K -387 -1%
COPPSERS
229
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$4.49M -$178K -977 -4%
PWM
230
Palumbo Wealth Management
New York
$4.49M +$20.9K +115 +0.4%
State of Tennessee, Department of Treasury
231
State of Tennessee, Department of Treasury
Tennessee
$4.46M -$202K -1,108 -4%
FNBT
232
FineMark National Bank & Trust
Florida
$4.41M +$30.2K +166 +0.7%
CAPTRUST Financial Advisors
233
CAPTRUST Financial Advisors
North Carolina
$4.39M +$1.48M +8,136 +47%
EF
234
Empowered Funds
Pennsylvania
$4.34M +$3.03M +16,639 +199%
Assenagon Asset Management
235
Assenagon Asset Management
Luxembourg
$4.33M +$3.53M +19,361 +346%
SA
236
Sanctuary Advisors
Indiana
$4.28M +$60.3K +331 +1%
RP
237
Rice Partnership
Hawaii
$4.26M +$489K +2,684 +12%
DIA
238
Dean Investment Associates
Ohio
$4.21M +$113K +622 +3%
AI
239
Atom Investors
Texas
$4.17M +$4.38M +24,043 New
MC
240
Maverick Capital
Texas
$4.15M +$1.04M +5,717 +31%
CI
241
Cambiar Investors
Colorado
$4.12M -$668K -3,668 -13%
Retirement Systems of Alabama
242
Retirement Systems of Alabama
Alabama
$4.11M -$34.6K -190 -0.8%
II
243
IFM Investors
Australia
$4.09M
Wealthfront Advisers
244
Wealthfront Advisers
California
$4.04M -$115K -630 -3%
CPCPP
245
Canada Post Corporation Pension Plan
Canada
$3.99M -$1.05M -5,785 -20%
Verition Fund Management
246
Verition Fund Management
Connecticut
$3.95M -$7.77M -42,677 -65%
DnB Asset Management
247
DnB Asset Management
Norway
$3.91M +$309K +1,696 +8%
US Bancorp
248
US Bancorp
Minnesota
$3.9M -$55K -302 -1%
UB
249
UMB Bank
Missouri
$3.85M -$187K -1,028 -4%
A
250
AlphaQuest
New York
$3.85M +$2.86M +15,704 +243%