IDXXIdexx Laboratories

$518.01-21% 1Y

Who owns IDXX

1,273 institutions reported holding IDXX for 2026Q2, together 92% of the company, fewer than the 1,290 a quarter earlier.

1,273

Institutions reporting a position · as of 2026Q2 · down from 1,290 the quarter before

Shares held by institutions
73.9M

Shares held by institutions · 92% of the company · long US equity positions only, as reported on Form 13F

Reported value
$38.9B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
35%

Top 5 holders · of the whole company, between five filers

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
53
New positions
112
Positions exited
129
Added to
426
Reduced
450
Top 10 holdersof the company
43%
Shares sold shortsettled Sep 15, 2026
1.9M
Short interestof shares outstanding
2.4%
Days to coverat the average daily volume
3.8
Change in the short positionsince the Aug 31, 2026 count
−8.4%
Institutional ownership by quarter, 2013Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q21,27373.9M$38.9B
2026Q11,29071.1M$40.0B
2025Q41,36080.7M$51.8B
2025Q31,27771.7M$45.8B
2025Q21,21474.2M$39.8B
2025Q11,12673.9M$31.0B
2024Q41,10371.7M$29.7B
2024Q31,10073.1M$36.6B
2024Q21,09974.5M$36.3B
2024Q11,13072.3M$39.0B
2023Q41,13872.7M$40.4B
2023Q31,04773.8M$32.3B
2023Q21,05072.8M$36.6B
2023Q11,04172.7M$36.3B
2022Q499073.5M$30.2B
2022Q391973.5M$24.0B
Largest reported holders, 2026Q2
HolderShares% of companyValue
VANGUARD GROUP INC9.9M12%$5.20B
BlackRock Inc.8.2M10%$4.30B
STATE STREET CORP3.7M4.7%$1.97B
Invesco Ltd.3.6M4.5%$1.90B
GEODE CAPITAL MANAGEMENT LLC2.6M3.2%$1.35B
BAMCO INC /NY/2.0M2.5%$1.04B
MORGAN STANLEY1.4M1.7%$714M
Bank of New York Mellon Corp1.2M1.5%$628M
ARROWSTREET CAPITAL LIMITED PARTNERSHIP1.1M1.3%$562M
Fundsmith LLP1.0M1.3%$537M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 20261.9M2.4%3.8
Aug 31, 20262.1M2.6%4.3
Aug 14, 20261.9M2.4%2.6
Jul 31, 20261.9M2.4%4.0
Jul 15, 20262.1M2.6%3.0
Jun 30, 20261.9M2.4%2.5
Jun 15, 20262.1M2.7%3.8
May 29, 20262.2M2.7%3.4
May 15, 20262.0M2.5%3.0
Apr 30, 20262.1M2.6%3.8
Apr 15, 20262.1M2.6%4.1
Mar 31, 20261.9M2.4%3.8

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

opening the register…