Idexx Laboratories
IDXX
1,234 hedge funds and large institutions have $40B invested in Idexx Laboratories in 2025 Q2 according to their latest regulatory filings, with 197 funds opening new positions, 426 increasing their positions, 420 reducing their positions, and 94 closing their positions.
110% more first-time investments, than exits
New positions opened: 197 | Existing positions closed: 94
28% more capital invested
Capital invested by funds: $31.1B → $40B (+$8.84B)
22% more funds holding in top 10
Funds holding in top 10: 18 → 22 (+4)
8% more funds holding
Funds holding: 1,144 → 1,234 (+90)
1.17% more ownership
Funds ownership: 91.49% → 92.67% (+1.2%)
1% more repeat investments, than reductions
Existing positions increased: 426 | Existing positions reduced: 420
16% less call options, than puts
Call options by funds: $112M | Put options by funds: $133M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Polen Capital Management
Boca Raton,
Florida
|
+$572M |
| 2 |
Bank of New York Mellon
New York
|
+$423M |
| 3 |
GIM
Generation Investment Management
London,
United Kingdom
|
+$271M |
| 4 |
CIBC Private Wealth Group
Atlanta,
Georgia
|
+$130M |
| 5 |
Schroder Investment Management Group
London,
United Kingdom
|
+$113M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
T. Rowe Price Associates
Baltimore,
Maryland
|
-$695M |
| 2 |
BlackRock
New York
|
-$157M |
| 3 |
DCP
Durable Capital Partners
Bethesda,
Maryland
|
-$153M |
| 4 |
Flossbach Von Storch
Cologne,
Germany
|
-$149M |
| 5 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
-$123M |
IDXX Hedge Fund Activity: Q2 2025 in Review
1,234 of the 7,613 institutional investors tracked by Wall St. Rank reported a position in Idexx Laboratories (IDXX) for Q2 2025, worth a combined $40B — up 28% from $31.1B a quarter earlier.
Buyers outnumbered sellers: 197 funds opened new IDXX positions and 94 closed out — a net gain of 103 holders — while 426 added to existing stakes and 420 trimmed.
The largest buyer was Polen Capital Management, opening a new position worth an estimated $572M. The largest seller was T. Rowe Price Associates, cutting an estimated $695M.
- 1,234 institutional investors held Idexx Laboratories (IDXX) as of Q2 2025, up from 1,144 in Q1 2025.
- Funds reported $40B of Idexx Laboratories stock for Q2 2025, up 28% quarter-over-quarter.
- 197 funds opened new Idexx Laboratories positions in Q2 2025 and 94 closed out, a net change of +103 holders.
- The largest Idexx Laboratories buyer in Q2 2025 was Polen Capital Management, an estimated $572M added.
- The largest Idexx Laboratories seller in Q2 2025 was T. Rowe Price Associates, an estimated $695M sold.
Based on aggregated 13F filings for Q2 2025.