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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
$835M
2
Select Equity Group
Select Equity Group
New York
$195M
3
Principal Financial Group
Principal Financial Group
Iowa
$473M
4
DCP
Durable Capital Partners
Maryland
$153M
5
UBS AM
UBS AM
Illinois
$452M

Top Sellers

1
AllianceBernstein
AllianceBernstein
Tennessee
$76.4M
2
Alyeska Investment Group
Alyeska Investment Group
Illinois
$0
3
Franklin Resources
Franklin Resources
California
$233M
4
Assenagon Asset Management
Assenagon Asset Management
Luxembourg
$86.7M
5
Millennium Management
Millennium Management
New York
$16.6M
Name Holding Trade Value Shares
Change 		Shares
Change %
Nisa Investment Advisors
176
Nisa Investment Advisors
Missouri
$16.9M +$71K +169 +0.4%
MHIC
177
Marble Harbor Investment Counsel
Massachusetts
$16.7M -$47K -112 -0.3%
HIP
178
HUB Investment Partners
Texas
$16.7M -$141K -336 -0.8%
CISOA
179
Capital Investment Services of America
Wisconsin
$16.6M +$310K +739 +2%
Millennium Management
180
Millennium Management
New York
$16.6M -$91M -216,720 -85%
NWM
181
Nicola Wealth Management
British Columbia, Canada
$16.5M +$16.5M +39,300 New
NP
182
NS Partners
United Kingdom
$16.4M -$11.8K -28 -0.1%
KK
183
KLP Kapitalforvaltning
Norway
$16.1M – – –
Tudor Investment Corp
184
Tudor Investment Corp
Connecticut
$16M +$15.2M +36,086 +1,836%
Rafferty Asset Management
185
Rafferty Asset Management
New York
$15.9M -$1.33M -3,156 -8%
LPL Financial
186
LPL Financial
California
$15.7M +$1.66M +3,963 +12%
Treasurer of the State of North Carolina
187
Treasurer of the State of North Carolina
North Carolina
$15.6M +$238K +567 +2%
Parnassus Investments
188
Parnassus Investments
California
$15.4M -$4.91M -11,694 -24%
GHA
189
GW Henssler & Associates
Georgia
$15.3M +$15.3M +36,420 New
Handelsbanken Fonder
190
Handelsbanken Fonder
Sweden
$15.1M -$748K -1,782 -5%
ACM
191
Academy Capital Management
Texas
$15M +$748K +1,781 +5%
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
192
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$15M +$4.21M +10,034 +39%
GKIM
193
GW&K Investment Management
Massachusetts
$14.9M +$441K +1,049 +3%
MIF
194
Mediolanum International Funds
Ireland
$14.9M -$1.54M -3,703 -9%
GT
195
Glenview Trust
Kentucky
$14.5M +$7.46M +17,761 +106%
Two Sigma Investments
196
Two Sigma Investments
New York
$14.4M -$22.3M -53,147 -61%
LAM
197
Lountzis Asset Management
Pennsylvania
$14.2M +$14.2M +32,696 New
Stifel Financial
198
Stifel Financial
Missouri
$14.1M +$2.87M +6,825 +26%
Swedbank
199
Swedbank
Sweden
$14M -$1.28M -3,051 -8%
Mirae Asset Global Investments
200
Mirae Asset Global Investments
South Korea
$13.9M +$2.95M +7,080 +27%
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