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Idexx Laboratories
IDXX

Overview Fund Activity

1,126 hedge funds and large institutions have $30.9B invested in Idexx Laboratories in 2025 Q1 according to their latest regulatory filings, with 124 funds opening new positions, 460 increasing their positions, 348 reducing their positions, and 90 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,126
Holders Change
+17
Holders Change %
+1.53%
% of All Funds
15.3%
Holding in Top 10
18
Holding in Top 10 Change
+6
Holding in Top 10 Change %
+50%
% of All Funds
0.24%
New
124
Increased
460
Reduced
348
Closed
90
Calls
$68.7M
Puts
$105M
Net Calls
-$36.1M
Net Calls Change
+$20.8M

Top Buyers

1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$347M
2
Select Equity Group
Select Equity Group
New York
+$195M
3
Principal Financial Group
Principal Financial Group
Iowa
+$174M
4
DCP
Durable Capital Partners
Maryland
+$153M
5
UBS AM
UBS AM
Illinois
+$122M

Top Sellers

1
AllianceBernstein
AllianceBernstein
Tennessee
-$444M
2
Alyeska Investment Group
Alyeska Investment Group
Illinois
-$156M
3
Franklin Resources
Franklin Resources
California
-$131M
4
Assenagon Asset Management
Assenagon Asset Management
Luxembourg
-$96M
5
Millennium Management
Millennium Management
New York
-$91M
Name Holding Trade Value Shares
Change 		Shares
Change %
OP
1126
ORG Partners
Indiana
$418 +$418 +1 New
Norges Bank
1127
Norges Bank
Norway
– -$412M -997,140 Closed
Alyeska Investment Group
1128
Alyeska Investment Group
Illinois
– -$156M -378,318 Closed
ECM
1129
ExodusPoint Capital Management
New York
– -$23.1M -55,793 Closed
FGP
1130
Freestone Grove Partners
California
– -$22.6M -54,604 Closed
Two Sigma Advisers
1131
Two Sigma Advisers
New York
– -$18.9M -45,600 Closed
TLP
1132
Tri Locum Partners
New York
– -$18.6M -44,972 Closed
WP
1133
Woodline Partners
California
– -$13.2M -31,929 Closed
Adage Capital Partners
1134
Adage Capital Partners
Massachusetts
– -$12M -28,967 Closed
Holocene Advisors
1135
Holocene Advisors
New York
– -$11.8M -28,542 Closed
Renaissance Technologies
1136
Renaissance Technologies
New York
– -$10.3M -25,000 Closed
QT
1137
Quantbot Technologies
New York
– -$5.5M -13,301 Closed
Massachusetts Financial Services
1138
Massachusetts Financial Services
Massachusetts
– -$5.46M -13,205 Closed
AIMCA
1139
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
– -$4.51M -10,900 Closed
SSA
1140
Schonfeld Strategic Advisors
New York
– -$3.84M -9,280 Closed
BHCM
1141
Brevan Howard Capital Management
Jersey
– -$3.52M -8,513 Closed
PCP
1142
Perbak Capital Partners
United Kingdom
– -$2.9M -7,022 Closed
LAM
1143
LECAP Asset Management
United Kingdom
– -$2.36M -5,701 Closed
ET
1144
Entropy Technologies
New York
– -$2.27M -5,500 Closed
CG
1145
Cynosure Group
Utah
– -$1.83M -4,429 Closed
TAM
1146
Thematics Asset Management
France
– -$1.73M -4,192 Closed
CCM
1147
Cinctive Capital Management
New York
– -$1.63M -3,942 Closed
CM
1148
Crestline Management
Texas
– -$1.46M -3,537 Closed
Capstone Investment Advisors
1149
Capstone Investment Advisors
New York
– -$1.46M -3,528 Closed
MC
1150
Machina Capital
France
– -$1.27M -3,070 Closed
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