IDEXX Laboratories Ownership | Who Owns IDEXX Laboratories?
IDEXX Laboratories Ownership Summary
IDEXX Laboratories is owned by 92.37% institutional investors, 0.68% insiders, and 6.95% retail investors. Vanguard group is the largest institutional shareholder, holding 11.80% of IDXX shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.20% of its assets in IDEXX Laboratories shares.
IDXX Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | IDEXX Laboratories | 92.37% | 0.68% | 6.95% |
| Sector | Healthcare Stocks | 488.17% | 11.08% | -399.26% |
| Industry | Diagnostics & Research Stocks | 57.60% | 10.69% | 31.72% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Vanguard group | 9.71M | 11.80% | $4.01B |
| Blackrock | 9.60M | 11.56% | $4.68B |
| Blackrock funding, inc. /de | 8.37M | 10.41% | $4.49B |
| State street | 3.64M | 4.42% | $1.50B |
| Fundsmith llp | 2.64M | 3.28% | $1.42B |
| Geode capital management | 2.30M | 2.79% | $948.28M |
| Bamco inc /ny/ | 2.03M | 2.53% | $1.09B |
| Alliancebernstein | 1.24M | 1.51% | $512.34M |
| Polen capital management | 1.20M | 1.49% | $641.15M |
| Price t rowe associates inc /md/ | 1.16M | 1.41% | $480.81M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Capital counsel llc/ny | 460.77K | 10.03% | $247.13M |
| Bourne lent asset management | 31.60K | 6.56% | $16.95M |
| Fundsmith llp | 2.64M | 6.15% | $1.42B |
| Fundsmith investment services | 844.62K | 6.13% | $453.00M |
| Quantum capital management, llc / nj | 104.43K | 6.05% | $56.01M |
| Perkins capital management | 9.70K | 5.23% | $5.20M |
| Coalescence partners investment management, lp | 37.71K | 5.22% | $20.22M |
| Spence asset management | 45.74K | 5.02% | $24.54M |
| Tikehau investment management | 5.90K | 4.93% | $3.16M |
| Manitou investment management | 52.20K | 4.26% | $21.58M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Polen capital management | 1.20M | 1.97% | 1.20M |
| Norges bank | 997.14K | 0.05% | 997.14K |
| Generation investment management llp | 567.32K | 1.93% | 567.32K |
| Blackrock | 9.60M | 0.11% | 395.97K |
| Bnp paribas arbitrage, snc | 441.32K | 0.10% | 303.94K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Alliancebernstein | 1.24M | 0.17% | -1.58M |
| Franklin resources | 867.05K | 0.10% | -545.65K |
| Alyeska investment group | - | - | -378.32K |
| Price t rowe associates inc /md/ | 1.16M | 0.06% | -373.90K |
| Durable capital partners lp | - | - | -364.76K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Polen capital management | 1.20M | 1.97% | 1.20M | $641.15M |
| Norges bank | 997.14K | 0.05% | 997.14K | $412.26M |
| Generation investment management llp | 567.32K | 1.93% | 567.32K | $304.28M |
| Champlain investment partners | 224.60K | 0.68% | 224.60K | $94.32M |
| Symphony financial | 52.03K | 0.59% | 52.03K | $27.90M |
Sold Out
| Holder | Change |
|---|---|
| Reston wealth management | -1.00 |
| Wealthcollab | -1.00 |
| American capital advisory | -1.00 |
| First premier bank | -1.00 |
| Transamerica financial advisors | -1.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2025 | 1,239 | 6.72% | 74,279,521 | 0.96% | 92 | 1.13% | 618 | 5.64% | 407 | 15.95% |
| Mar 31, 2025 | 33 | -97.09% | 6,169,841 | -91.41% | 7 | 0.10% | 16 | -96.76% | 8 | -98.17% |
| Dec 31, 2024 | 802 | -29.21% | 46,571,971 | -35.65% | 56 | 0.73% | 325 | -28.41% | 324 | -24.30% |
| Sep 30, 2024 | 1,120 | -0.44% | 72,326,946 | -3.33% | 87 | 1.08% | 451 | -8.33% | 423 | 10.73% |
| Jun 30, 2024 | 1,113 | -4.13% | 74,775,550 | 4.42% | 89 | 1.21% | 486 | -2.02% | 378 | -7.58% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard US Total Market Shares ETF | 2.61M | 3.20% | -7.95K |
| Vanguard Total Stock Mkt Idx Inv | 2.53M | 3.16% | -59.89K |
| Fundsmith Equity I Acc | 2.52M | 3.13% | - |
| R233 Fundsmith Equity (GBP) | 2.52M | 3.10% | - |
| Vanguard Institutional 500 Index Trust | 2.33M | 2.90% | 16.57K |
| Vanguard 500 Index Investor | 1.99M | 2.49% | -291.53K |
| Vanguard Mid Cap Index Institutional | 1.79M | 2.24% | 19.34K |
| Invesco QQQ Trust | 1.65M | 2.05% | -1.03K |
| Fidelity 500 Index | 1.02M | 1.27% | -14.07K |
| SPDR® S&P 500 ETF | 1.02M | 1.25% | -14.88K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Aug 22, 2025 | SZOSTAK M ANNE | - | Sell | $1.42M |
| Aug 12, 2025 | Erickson Michael G | Executive Vice President | Sell | $206.70K |
| Aug 12, 2025 | Erickson Michael G | Executive Vice President | Sell | $57.12K |
| Aug 11, 2025 | Hunt Nimrata | Executive Vice President | Sell | $787.84K |
| Aug 08, 2025 | Underberg Sharon E. | EVP, GC & Corporate Secretary | Sell | $3.55M |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q3 | - | 21 |
| 2025 Q2 | - | 4 |
| 2025 Q1 | - | 2 |
| 2024 Q4 | - | 1 |
| 2024 Q3 | - | 1 |
IDXX Ownership FAQ
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