IDEXX Laboratories (IDXX) Institutional Ownership

$554.99 0.00 (0.00%)

As of 08/28/2026 04:00 PM Eastern

Current Institutional Ownership Percentage: 87.84%
Number of Institutional Buyers (last 12 months): 762
Total Institutional Inflows (last 12 months): $45.44B

Number of Institutional Sellers (last 12 months): 586
Total Institutional Outflows (last 12 months): $5.58B

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IDXX Institutional Buying and Selling by Quarter

IDEXX Laboratories Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
8/27/2026	Corient Private Wealth LP	111,488	$58.69M	0.1%	-8.6%	0.142%
8/27/2026	Formuepleje A S	1,855	$977K	0.1%	N/A	0.002%
8/26/2026	Amundi	569,725	$299.93M	0.1%	-6.7%	0.723%
8/26/2026	HighTower Advisors LLC	28,415	$14.96M	0.0%	-0.4%	0.036%
8/25/2026	VIRGINIA RETIREMENT SYSTEMS ET Al	92,218	$48.55M	0.3%	N/A	0.117%
8/24/2026	California State Teachers Retirement System	61,590,848	$32.42B	0.1%	+50,115.1%	78.181%
8/23/2026	Kraematon Investment Advisors Inc.	5,130	$2.70M	2.0%	-1.6%	0.007%
8/23/2026	HB Wealth Management LLC	4,167	$2.19M	0.0%	-2.6%	0.005%
8/23/2026	Saudi Central Bank	5,560	$2.93M	0.0%	+88.7%	0.007%
8/23/2026	Azimuth Capital Investment Management LLC	18,111	$9.53M	0.3%	-40.1%	0.023%
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8/22/2026	AlphaGrep UK Ltd	2,630	$1.39M	0.4%	N/A	0.003%
8/22/2026	Maloon Powers Pitre Higgins & Dennehy LLC	576	$303K	0.1%	N/A	0.001%
8/22/2026	Blalock Williams LLC	827	$435K	0.3%	-9.6%	0.001%
8/22/2026	Plan A Wealth LLC	385	$203K	0.1%	N/A	0.000%
8/22/2026	SVRN Asset Management LLC	550	$290K	0.1%	N/A	0.001%
8/22/2026	Three Seasons Wealth LLC	1,516	$798K	0.1%	+8.8%	0.002%
8/22/2026	Raiffeisen Bank International AG	41,815	$22.41M	0.3%	-1.8%	0.053%
8/22/2026	Syon Capital LLC	1,668	$878K	0.0%	+22.9%	0.002%
8/22/2026	TD Waterhouse Canada Inc.	5,721	$3.08M	0.0%	-34.5%	0.007%
8/22/2026	Premier Path Wealth Partners LLC	472	$248K	0.0%	-14.8%	0.001%
8/22/2026	Concurrent Investment Advisors LLC	1,199	$631K	0.0%	+32.2%	0.002%
8/22/2026	NEOS Investment Management LLC	60,354	$31.77M	0.1%	+12.5%	0.077%
8/21/2026	iSAM Funds UK Ltd	560	$295K	0.2%	N/A	0.001%
8/20/2026	Proficio Capital Partners LLC	728	$383K	0.0%	N/A	0.001%
8/20/2026	NS Partners Ltd	28,950	$15.24M	0.7%	-17.8%	0.037%
8/20/2026	Railway Pension Investments Ltd	45,360	$23.88M	0.3%	-82.3%	0.058%
8/20/2026	Grandeur Peak Global Advisors LLC	2,229	$1.17M	0.3%	+21.4%	0.003%
8/20/2026	Fundsmith LLP	1,019,887	$536.91M	3.9%	-30.4%	1.295%
8/20/2026	Oarsman Capital Inc.	494	$260K	0.0%	-16.7%	0.001%
8/20/2026	Headlands Technologies LLC	2,133	$1.12M	0.1%	+46.0%	0.003%
8/20/2026	Quantitative Investment Management LLC	3,148	$1.66M	0.2%	-27.8%	0.004%
8/20/2026	Ancora Advisors LLC	835	$440K	0.0%	-3.8%	0.001%
8/20/2026	Two Sigma Securities LLC	2,636	$1.39M	0.1%	+166.0%	0.003%
8/20/2026	Benjamin Edwards Inc.	3,972	$2.09M	0.0%	-6.8%	0.005%
8/20/2026	Alyeska Investment Group L.P.	401,082	$211.15M	0.5%	+97.3%	0.509%
8/20/2026	Flputnam Investment Management Co.	14,882	$7.83M	0.1%	-2.2%	0.019%
8/20/2026	Northwestern Mutual Wealth Management Co.	2,432	$1.28M	0.0%	-11.5%	0.003%
8/20/2026	Wedbush Securities Inc.	3,205	$1.69M	0.0%	+5.5%	0.004%
8/20/2026	Greenleaf Trust	1,662	$875K	0.0%	+13.7%	0.002%
8/19/2026	UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	911,489	$479.84M	0.1%	+4.6%	1.157%
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8/19/2026	New Mexico Educational Retirement Board	3,950	$2.08M	0.1%	+8.2%	0.005%
8/19/2026	Royal London Asset Management Ltd.	50,714	$26.70M	0.0%	-0.6%	0.064%
8/19/2026	Mufg Securities Americas Inc.	2,376	$1.25M	0.1%	+7.5%	0.003%
8/19/2026	Van ECK Associates Corp	24,601	$12.95M	0.0%	-7.9%	0.031%
8/19/2026	Northstar Asset Management Inc.	11,901	$6.27M	1.8%	-6.2%	0.015%
8/19/2026	Nissay Asset Management Corp Japan	23,713	$12.48M	0.1%	+4.7%	0.030%
8/19/2026	Wellington Management Group LLP	726,695	$382.56M	0.1%	-1.2%	0.922%
8/18/2026	Pin Oak Investment Advisors Inc.	93	$49K	0.0%	N/A	0.000%
8/18/2026	Livforsakringsbolaget Skandia Omsesidigt	400	$210K	0.0%	N/A	0.001%
8/18/2026	Public Employees Retirement System of Ohio	28,050	$14.77M	0.0%	N/A	0.036%
8/15/2026	American Capital Management Inc.	162,110	$85.34M	3.8%	N/A	0.206%
8/15/2026	First Bancorp Inc ME	950	$500K	0.2%	N/A	0.001%
8/14/2026	Ancora Advisors LLC	835	$440K	0.0%	N/A	0.001%
8/13/2026	Barbara Oil Co.	5,245	$2.81M	0.9%	N/A	0.007%
8/11/2026	TrinityBridge Ltd	363	$191K	0.0%	N/A	0.000%
8/10/2026	Flossbach Von Storch SE	17,270	$9.09M	0.0%	N/A	0.022%
8/10/2026	Great Lakes Advisors LLC	3,991	$2.10M	0.0%	N/A	0.005%
8/10/2026	Danske Bank A S	47,185	$24.84M	0.0%	N/A	0.060%
8/7/2026	Commerzbank Aktiengesellschaft FI	647	$341K	0.0%	N/A	0.001%
8/7/2026	Plato Investment Management Ltd	2,836	$1.48M	0.1%	N/A	0.004%
8/6/2026	J.Safra Asset Management Corp	48	$25K	0.0%	N/A	0.000%
8/6/2026	Bank of New York Mellon Corp	1,193,343	$628.22M	0.1%	N/A	1.513%
8/6/2026	S&CO Inc.	500	$263K	0.0%	N/A	0.001%
8/3/2026	Beacon Bank & Trust	1,082	$570K	0.1%	-6.3%	0.001%
7/10/2026	Tema ETFs LLC	3,934	$2.07M	0.1%	-1.6%	0.005%
7/10/2026	Haven Capital Group Inc.	11,492	$6.05M	5.0%	-5.3%	0.015%
7/10/2026	Generali Investments Management Co LLC	902	$475K	0.1%	+40.9%	0.001%
7/10/2026	E. Ohman J or Asset Management AB	3,911	$2.06M	0.0%	+11.1%	0.005%
7/10/2026	Handelsbanken Fonder AB	38,344	$20.19M	0.1%	+5.9%	0.049%
7/10/2026	City Holding Co.	817	$430K	0.0%	-22.9%	0.001%
7/10/2026	Salvus Wealth Management LLC	627	$330K	0.2%	-12.7%	0.001%
7/9/2026	Revolve Wealth Partners LLC	963	$507K	0.1%	+7.6%	0.001%
7/9/2026	Franklin Street Advisors Inc. NC	26,215	$13.80M	0.8%	-2.0%	0.033%
7/9/2026	Legacy Wealth Asset Management LLC	488	$257K	0.1%	+29.8%	0.001%
7/9/2026	Birchbrook Inc.	4,477	$2.36M	1.1%	-0.8%	0.006%
7/9/2026	Everhart Financial Group Inc.	1,939	$1.02M	0.1%	-5.4%	0.002%
7/9/2026	Sax Wealth Advisors LLC	2,354	$1.32M	0.0%	+97.6%	0.003%
7/9/2026	Pine Haven Investment Counsel Inc	1,388	$731K	0.5%	+4.8%	0.002%
7/9/2026	Valeo Financial Advisors LLC	383	$202K	0.0%	+6.4%	0.000%
7/9/2026	Seilern Investment Management Ltd	97,560	$51.36M	6.5%	+20.7%	0.124%
7/9/2026	Norway Savings Bank	4,919	$2.59M	1.1%	+5.6%	0.006%
7/8/2026	Beacon Bank & Trust	1,082	$570K	0.1%	-6.3%	0.001%
7/8/2026	Beacon Investment Advisory Services Inc.	55,153	$29.04M	1.1%	-6.2%	0.070%
7/8/2026	Aurora Investment Managers LLC.	4,638	$2.44M	1.5%	N/A	0.006%
7/8/2026	Elevation Wealth Partners LLC	49	$26K	0.0%	+188.2%	0.000%
7/8/2026	Czech National Bank	22,453	$11.82M	0.1%	+3.2%	0.028%
7/8/2026	PensionDanmark Pensionsforsikringsaktieselskab	14,190	$7.47M	0.1%	+4.5%	0.018%
7/8/2026	Assenagon Asset Management S.A.	183,233	$96.46M	0.1%	+113.5%	0.232%
7/8/2026	Manitou Investment Management Ltd.	69,979	$36.84M	6.8%	+0.5%	0.089%
7/7/2026	Dynamic Advisor Solutions LLC	493	$260K	0.0%	-10.0%	0.001%
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7/7/2026	GAMMA Investing LLC	3,297	$1.74M	0.1%	+7.5%	0.004%
7/7/2026	Canandaigua National Bank & Trust Co.	971	$511K	0.0%	N/A	0.001%
7/7/2026	Arlington Trust Co LLC	60	$32K	0.0%	+46.3%	0.000%
7/7/2026	Carderock Capital Management Inc.	16,627	$8.75M	1.9%	+1.0%	0.021%
7/7/2026	Grove Bank & Trust	710	$374K	0.0%	-35.8%	0.001%
7/7/2026	Anderson Hoagland & Co.	9,834	$5.18M	0.4%	-0.6%	0.012%
7/6/2026	Bangor Savings Bank	1,410	$742K	0.1%	-6.1%	0.002%
7/2/2026	Versant Capital Management Inc	1,014	$534K	0.0%	+46.1%	0.001%
7/1/2026	Eastern Bank	506	$266K	0.0%	-15.1%	0.001%
6/18/2026	Pacer Advisors Inc.	41,003	$23.04M	0.0%	+193.6%	0.052%

IDXX Institutional Ownership - Frequently Asked Questions

During the previous two years, 1,385 institutional investors and hedge funds held shares of IDEXX Laboratories. The most heavily invested institutionals were California State Teachers Retirement System ($32.42B), Vanguard Group Inc. ($6.73B), Elyxium Wealth LLC ($3.67B), State Street Corp ($2.47B), J. Stern & Co. LLP ($1.80B), Geode Capital Management LLC ($1.75B), and Bamco Inc. NY ($1.22B).Learn more on IDEXX Laboratories' institutional investors.

87.84% of IDEXX Laboratories' stock is owned by institutional investors. Learn more on IDXX's institutional investor holdings.

Of the 1,194 institutional investors that purchased IDEXX Laboratories' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: California State Teachers Retirement System ($61.47M), Elyxium Wealth LLC ($5.42M), Bank of New York Mellon Corp ($2.68M), J. Stern & Co. LLP ($2.64M), Norges Bank ($1.90M), Northwestern Mutual Wealth Management Co. ($1.44M), and Price T Rowe Associates Inc. MD ($1.08M).

Institutional investors have bought a total of 81,581,920 shares in the last 24 months. This purchase volume represents approximately $45.44B in transactions.

Of the 586 institutional investors that sold IDEXX Laboratories' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Bank of New York Mellon Corp ($552.15K), Macquarie Group Ltd. ($509.78K), Fundsmith LLP ($474.73K), Principal Financial Group Inc. ($434.53K), Vontobel Holding Ltd. ($410.70K), Generation Investment Management LLP ($306.93K), and Fundsmith Investment Services LTD. ($290.76K).

Institutional investors have sold a total of 8,730,962 shares in the last 24 months. This volume of shares sold represents approximately $5.58B in transactions.

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Institutional ownership data for NASDAQ:IDXX is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/27/2026. New 13F filings are added each quarter as they're published.

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IDEXX Laboratories (IDXX) Institutional Ownership

IDXX Institutional Buying and Selling by Quarter

IDEXX Laboratories Major Shareholders & Ownership History

IDXX Institutional Ownership - Frequently Asked Questions

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IDEXX Laboratories (IDXX) Institutional Ownership

Institutional Ownership Changes (13F Filings) for IDEXX Laboratories (NASDAQ:IDXX)

IDXX Institutional Buying and Selling by Quarter

IDEXX Laboratories Major Shareholders & Ownership History

IDXX Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of IDXX shares?

What percentage of IDEXX Laboratories' stock is owned by institutional investors?

Which institutional investors have been buying IDEXX Laboratories' stock?

How much institutional buying is happening at IDEXX Laboratories?

Which of IDEXX Laboratories' major shareholders have been selling company stock?

How much institutional selling is happening at IDEXX Laboratories?

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