Who owns IDEXX LABORATORIES INC /DE?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of IDXX from SEC Form 13F filings across 1,298 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 1,298 institutions disclosed 74.2M shares of IDEXX LABORATORIES INC /DE worth $39.08B — about 94% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
1,298
13F holders
$39.08B
value, 2026 filers
94%
of shares outstanding (74.2M sh)
140
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of IDXX's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 8.2M | $4.30B | 0.1% | 10.3% | -2.3% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 5.2M | $2.71B | 0.1% | 6.5% | -0.6% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 3.9M | $2.05B | 0.1% | 4.9% | -0.4% |
| 4 | STATE STREET CORP | 3.7M | $1.97B | 0.1% | 4.7% | +2.0% |
| 5 | Invesco Ltd. | 3.6M | $1.90B | 0.2% | 4.6% | +115.2% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 2.6M | $1.35B | 0.1% | 3.2% | -3.7% |
| 7 | BAMCO INC /NY/ | 2.0M | $1.04B | 1.6% | 2.5% | +21.0% |
| 8 | MORGAN STANLEY | 1.4M | $713.9M | 0.0% | 1.7% | +3.1% |
| 9 | Bank of New York Mellon Corp | 1.2M | $628.2M | 0.1% | 1.5% | -20.7% |
| 10 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.1M | $561.8M | 0.2% | 1.4% | +27.2% |
| 11 | Fundsmith LLP | 1.0M | $536.9M | 3.9% | 1.3% | -30.4% |
| 12 | BLAIR WILLIAM & CO/IL | 918,556 | $483.6M | 1.3% | 1.2% | -2.9% |
| 13 | NORTHERN TRUST CORP | 918,137 | $483.3M | 0.1% | 1.2% | +0.7% |
| 14 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 911,489 | $479.8M | 0.1% | 1.2% | +4.6% |
| 15 | FMR LLC | 822,643 | $433.1M | 0.0% | 1% | +190.7% |
| 16 | AMERICAN CENTURY COMPANIES INC | 808,358 | $425.6M | 0.2% | 1% | +34.7% |
| 17 | Capital Research Global Investors | 789,111 | $415.5M | 0.1% | 1% | +1.0% |
| 18 | JPMORGAN CHASE & CO | 755,791 | $405.1M | 0.0% | 1% | -3.1% |
| 19 | PRINCIPAL FINANCIAL GROUP INC | 743,246 | $391.3M | 0.2% | 0.9% | -15.7% |
| 20 | GOLDMAN SACHS GROUP INC | 738,708 | $388.9M | 0.0% | 0.9% | +3.0% |
| 21 | WELLINGTON MANAGEMENT GROUP LLP | 726,695 | $382.6M | 0.1% | 0.9% | -1.2% |
| 22 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 650,429 | $342.4M | 0.0% | 0.8% | +6.6% |
| 23 | Legal & General Group Plc | 617,197 | $324.9M | 0.1% | 0.8% | -5.2% |
| 24 | DIMENSIONAL FUND ADVISORS LP | 608,902 | $320.6M | 0.1% | 0.8% | +6.2% |
| 25 | FRANKLIN RESOURCES INC | 575,784 | $303.1M | 0.1% | 0.7% | -13.1% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.