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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 125 funds opening new positions, 459 increasing their positions, 348 reducing their positions, and 90 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,126
Holders Change
+18
Holders Change %
+1.62%
% 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
125
Increased
459
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
1
T. Rowe Price Associates
Maryland
$835M
2
Select Equity Group
2
Select Equity Group
New York
$195M
3
Principal Financial Group
3
Principal Financial Group
Iowa
$473M
4
DCP
4
Durable Capital Partners
Maryland
$153M
5
UBS AM
5
UBS AM
Illinois
$452M

Top Sellers

1
AllianceBernstein
1
AllianceBernstein
Tennessee
$76.4M
2
Alyeska Investment Group
2
Alyeska Investment Group
Illinois
$0
3
Franklin Resources
3
Franklin Resources
California
$233M
4
Assenagon Asset Management
4
Assenagon Asset Management
Luxembourg
$86.7M
5
Millennium Management
5
Millennium Management
New York
$16.6M
Name Holding Trade Value Shares
Change 		Shares
Change %
TCCM
76
Two Creeks Capital Management
New York
$67.3M +$38.3M +91,144 +132%
LCP
77
LGT Capital Partners
Switzerland
$65.2M +$4.97M +11,840 +8%
Universal-Beteiligungs- und Servicegesellschaft
78
Universal-Beteiligungs- und Servicegesellschaft
Germany
$63.1M +$23.7M +56,408 +60%
Mackenzie Financial
79
Mackenzie Financial
Ontario, Canada
$62.3M -$3.44M -8,197 -5%
Robeco Institutional Asset Management
80
Robeco Institutional Asset Management
Netherlands
$62.3M -$10.1M -24,091 -14%
RG
81
Rathbones Group
United Kingdom
$60.4M +$3.08M +7,331 +5%
California Public Employees Retirement System
82
California Public Employees Retirement System
California
$59.5M -$390K -928 -0.7%
Aviva
83
Aviva
United Kingdom
$58.2M +$6.38M +15,186 +12%
SG Americas Securities
84
SG Americas Securities
New York
$58.2M +$41.3M +98,413 +246%
Allianz Asset Management
85
Allianz Asset Management
Germany
$58M -$9.7M -23,097 -14%
Fiera Capital (Canada)
86
Fiera Capital (Canada)
Quebec, Canada
$57.8M -$1.52M -3,610 -3%
LWCFA
87
Loring Wolcott & Coolidge Fiduciary Advisors
Massachusetts
$57.1M -$292K -684 -0.5%
ProShare Advisors
88
ProShare Advisors
Maryland
$56.9M +$5.21M +12,414 +10%
Ameriprise
89
Ameriprise
Minnesota
$56.2M +$6.44M +15,340 +13%
Citigroup
90
Citigroup
New York
$55.5M +$12.6M +30,122 +29%
National Pension Service
91
National Pension Service
South Korea
$53.1M +$3.68M +8,752 +7%
EAM
92
EULAV Asset Management
Florida
$53M +$1.26K +3 +0%
California State Teachers Retirement System (CalSTRS)
93
California State Teachers Retirement System (CalSTRS)
California
$53M -$962K -2,291 -2%
WCA
94
Waratah Capital Advisors
Ontario, Canada
$51.8M +$51.8M +123,393 New
Corient Private Wealth
95
Corient Private Wealth
Florida
$50.6M -$2.08M -4,946 -4%
Kayne Anderson Rudnick Investment Management
96
Kayne Anderson Rudnick Investment Management
California
$50.1M -$4.5M -10,715 -8%
Brown Advisory
97
Brown Advisory
Maryland
$50M -$2.07M -4,932 -4%
BDLIB
98
Banque de Luxembourg Investments (BLI)
Luxembourg
$49.6M +$415K +1,000 +0.8%
QCMNJ
99
Quantum Capital Management (New Jersey)
New Jersey
$49.4M +$25.9M +61,684 +110%
FCM
100
Frontier Capital Management
Massachusetts
$48.7M +$10.8M +25,787 +29%
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4
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