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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.

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
NL
3
Nuveen LLC
North Carolina
$180M
4
Principal Financial Group
4
Principal Financial Group
Iowa
$473M
5
DCP
5
Durable Capital Partners
Maryland
$153M

Top Sellers

1
AllianceBernstein
1
AllianceBernstein
Tennessee
$76.4M
2
Norges Bank
2
Norges Bank
Norway
$0
3
Alyeska Investment Group
3
Alyeska Investment Group
Illinois
$0
4
Franklin Resources
4
Franklin Resources
California
$233M
5
Assenagon Asset Management
5
Assenagon Asset Management
Luxembourg
$86.7M
Name Market Value Shares Shares
Change 		Shares
Change %
Vanguard Group
1
Vanguard Group
Pennsylvania
$4.14B 9,855,937 +146,427 +2%
BlackRock
2
BlackRock
New York
$3.65B 8,703,074 +230,512 +3%
State Street
3
State Street
Massachusetts
$1.53B 3,649,878 +12,318 +0.3%
Fundsmith LLP
4
Fundsmith LLP
United Kingdom
$1.11B 2,648,331 -14,524 -0.5%
Geode Capital Management
5
Geode Capital Management
Massachusetts
$1.01B 2,409,888 +112,617 +5%
BAMCO Inc
6
BAMCO Inc
New York
$865M 2,059,777 +54,255 +3%
T. Rowe Price Associates
7
T. Rowe Price Associates
Maryland
$835M 1,988,912 +825,965 +71%
Morgan Stanley
8
Morgan Stanley
New York
$696M 1,658,345 +25,306 +2%
Invesco
9
Invesco
Georgia
$490M 1,166,406 +5,418 +0.5%
Principal Financial Group
10
Principal Financial Group
Iowa
$473M 1,126,002 +414,802 +58%
William Blair & Company
11
William Blair & Company
Illinois
$458M 1,090,770 -14,244 -1%
UBS AM
12
UBS AM
Illinois
$452M 1,076,429 +290,551 +37%
Northern Trust
13
Northern Trust
Illinois
$380M 905,067 -7,807 -0.9%
American Century Companies
14
American Century Companies
Missouri
$365M 867,992 +58,178 +7%
FIS
15
Fundsmith Investment Services
Mauritius
$359M 854,359 -10,649 -1%
Amundi
16
Amundi
France
$297M 723,111 -35,558 -5%
Capital Research Global Investors
17
Capital Research Global Investors
California
$280M 667,804 +51,808 +8%
Macquarie Group
18
Macquarie Group
Australia
$275M 655,401 +173,766 +36%
William Blair Investment Management
19
William Blair Investment Management
Illinois
$268M 637,111 +214,978 +51%
Legal & General Group
20
Legal & General Group
United Kingdom
$267M 636,858 +26,838 +4%
Bank of New York Mellon
21
Bank of New York Mellon
New York
$238M 566,582 -10,462 -2%
Dimensional Fund Advisors
22
Dimensional Fund Advisors
Texas
$237M 565,508 -21,193 -4%
Charles Schwab
23
Charles Schwab
California
$233M 555,190 +23,498 +4%
Franklin Resources
24
Franklin Resources
California
$233M 554,447 -312,606 -36%
Flossbach Von Storch
25
Flossbach Von Storch
Germany
$232M 551,764 +78,428 +17%
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