Idexx Laboratories Inc /De (IDXX) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

80,675,000Shares Outstanding

84,428,261Shares held by institutions

$48,040,524,792Value of institutional holdings

104.65%Institutional ownership %

16.73%Shares Changed QoQ

1,344No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Idexx Laboratories Inc /De (NASDAQ:IDXX) appears in 1,341 institutional 13F filings for the quarter ending December 2025.

These investors collectively held 103.3% of Idexx Laboratories's outstanding shares in December 2025, up from 91.3% in September 2025.
They increased total shares held in Idexx Laboratories by 16.4% from last quarter, and the number of investors in IDXX increased 22.58% annually.
Among the 1,341 funds, 650 bought more Idexx Laboratories shares, 472 sold down, and 219 held their ground.
The aggregate institutional position in Idexx Laboratories amounted to 83.38Mn shares as of December 2025, up by 11.75Mn shares quarter on quarter, and up 8.56Mn shares year over year.
As of December 31, 2025, Bangor Savings Bank held the largest stake in Idexx Laboratories with 1.5K shares, accounting for 0.0% of total shares outstanding.
The most significant purchases of IDXX for the quarter ending December 2025 came from BancFirst Trust & Investment Management (807), Hilltop National Bank (37), Rise Advisors, LLC (2).
The biggest sellers of Idexx Laboratories for the quarter ending December 2025 included Bangor Savings Bank (30).
Per Business Quant data, the top 8 holders of Idexx Laboratories for the quarter ending December 2025 are Bangor Savings Bank (1.5K), BancFirst Trust & Investment Management (807), Rise Advisors, LLC (549), Horizons Wealth Management (100), Hilltop National Bank (37), Ares Financial Consulting, LLC (11), Byrne Asset Management LLC (4), Aspect Partners, LLC (4).

1,344 Institutional Holders

84,428,261 Total Shares Held

Rows:

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Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
VANGUARD GROUP INC	31 Dec, 2025	9,945,328	-16,697	-0.17%	$6,728,312,752.00
BlackRock, Inc.	31 Dec, 2025	8,534,886	329,875	4.02%	$5,774,106,652.00
Elyxium Wealth, LLC	31 Dec, 2025	5,419,507	5,419,507	0.00%	$5,443,826.00
J. Stern & Co. LLP	31 Dec, 2025	5,306,702	5,295,551	47,489.47%	$5,306,702.00
State Street Corp	31 Dec, 2025	3,656,626	138,956	3.95%	$2,473,817,188.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	2,583,939	86,263	3.45%	$1,749,379,966.00
Fundsmith LLP	31 Dec, 2025	1,876,035	-734,422	-28.13%	$1,269,193,959.00
BAMCO INC /NY/	31 Dec, 2025	1,798,041	-86,088	-4.57%	$1,216,428,678.00
Goldman Sachs Group Inc	31 Dec, 2025	1,664,100	952,158	133.74%	$1,125,814,247.00
Bank of New York Mellon Corp	31 Dec, 2025	1,624,469	-432,211	-21.01%	$1,099,001,748.00
Morgan Stanley	31 Dec, 2025	1,553,731	-68,759	-4.24%	$1,051,147,718.00
Invesco Ltd.	31 Dec, 2025	1,502,218	181,955	13.78%	$1,016,295,593.00
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO	31 Dec, 2025	1,446,901	1,444,630	63,612.07%	$41,940,195.00
BLAIR WILLIAM & CO/IL	31 Dec, 2025	1,001,375	-30,411	-2.95%	$677,459,976.00
Principal Financial Group Inc	31 Dec, 2025	968,946	-346,776	-26.36%	$655,561,672.00
POLEN CAPITAL MANAGEMENT LLC	31 Dec, 2025	960,537	-166,610	-14.78%	$649,831,919.00
Northern Trust Corp	31 Dec, 2025	923,152	-19,216	-2.04%	$624,540,025.00
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	31 Dec, 2025	859,887	-15,662	-1.79%	$581,739,353.00
WELLINGTON MANAGEMENT GROUP LLP	31 Dec, 2025	779,214	592,834	318.08%	$527,161,647.00
Jpmorgan Chase & Co	31 Dec, 2025	673,228	-1,066,632	-61.31%	$455,459,820.00

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