Select Equity Group, L.P. Idexx Laboratories Inc Transaction History

Select Equity Group, L.P.

$20.4 Billion
Q3 2025

A detailed history of Select Equity Group, L.P. transactions in Idexx Laboratories Inc stock. As of the latest transaction made, Select Equity Group, L.P. holds 282,018 shares of IDXX stock, worth $195 Million. This represents 0.88% of its overall portfolio holdings.

Number of Shares

282,018

Previous 573,713 50.84%

Holding current value

$195 Million

Previous $308 Million 41.44%

% of portfolio

0.88%

Previous 1.52%

28 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	SELL	$514.61 - $682.78 $150 Million - $199 Million	-291,695 Reduced 50.84%	282,018 $180 Million
Q2 2025 Aug 14, 2025	BUY	$361.04 - $536.34 $39.6 Million - $58.9 Million	109,767 Added 23.66%	573,713 $308 Million
Q1 2025 May 15, 2025	BUY	$406.29 - $469.04 $188 Million - $218 Million	463,946 New	463,946 $195 Million
Q1 2024 May 15, 2024	SELL	$515.08 - $576.87 $151 Million - $169 Million	-293,540 Reduced 71.41%	117,543 $63.5 Million
Q4 2023 Feb 14, 2024	SELL	$391.37 - $557.56 $91.1 Million - $130 Million	-232,664 Reduced 36.14%	411,083 $228 Million

Q2 2023 Aug 14, 2023	SELL	$450.7 - $503.61 $24.3 Million - $27.1 Million	-53,869 Reduced 7.72%	643,747 $323 Million
Q1 2023 May 15, 2023	SELL	$406.01 - $514.59 $133 Million - $168 Million	-327,434 Reduced 31.94%	697,616 $349 Million
Q4 2022 Feb 14, 2023	SELL	$324.64 - $441.27 $17.6 Million - $23.9 Million	-54,080 Reduced 5.01%	1,025,050 $418 Million
Q3 2022 Nov 14, 2022	SELL	$325.8 - $407.78 $44.3 Million - $55.5 Million	-135,997 Reduced 11.19%	1,079,130 $352 Million
Q2 2022 Aug 15, 2022	BUY	$327.37 - $553.44 $348 Million - $588 Million	1,062,844 Added 697.94%	1,215,127 $426 Million
Q1 2022 May 16, 2022	BUY	$466.52 - $631.01 $21.7 Million - $29.3 Million	46,460 Added 43.9%	152,283 $83.3 Million
Q4 2021 Feb 14, 2022	SELL	$586.54 - $666.48 $407,645 - $463,203	-695 Reduced 0.65%	105,823 $69.7 Million
Q3 2021 Nov 15, 2021	SELL	$621.9 - $705.76 $8.52 Million - $9.67 Million	-13,704 Reduced 11.4%	106,518 $66.2 Million
Q2 2021 Aug 16, 2021	SELL	$486.36 - $637.08 $7.34 Million - $9.61 Million	-15,088 Reduced 11.15%	120,222 $75.9 Million
Q1 2021 May 17, 2021	SELL	$465.18 - $551.79 $36.2 Million - $42.9 Million	-77,732 Reduced 36.49%	135,310 $66.2 Million
Q4 2020 Feb 16, 2021	SELL	$383.85 - $499.87 $1.16 Million - $1.52 Million	-3,033 Reduced 1.4%	213,042 $106 Million
Q3 2020 Nov 16, 2020	SELL	$334.54 - $406.31 $25.3 Million - $30.7 Million	-75,659 Reduced 25.93%	216,075 $84.9 Million
Q2 2020 Aug 14, 2020	SELL	$230.66 - $330.16 $94.5 Million - $135 Million	-409,870 Reduced 58.42%	291,734 $96.3 Million
Q1 2020 May 15, 2020	BUY	$182.94 - $290.97 $128 Million - $204 Million	701,604 New	701,604 $170 Million
Q4 2019 Feb 14, 2020	SELL	$248.66 - $285.01 $7.75 Million - $8.88 Million	-31,162 Closed	0 $0
Q3 2019 Nov 14, 2019	SELL	$260.07 - $289.93 $7.82 Million - $8.72 Million	-30,076 Reduced 49.11%	31,162 $8.47 Million
Q2 2019 Aug 14, 2019	SELL	$215.53 - $275.33 $6.43 Million - $8.22 Million	-29,849 Reduced 32.77%	61,238 $0
Q1 2019 May 15, 2019	SELL	$178.02 - $225.69 $8.73 Million - $11.1 Million	-49,038 Reduced 35.0%	91,087 $0
Q4 2018 Feb 14, 2019	BUY	$176.18 - $248.92 $24.7 Million - $34.9 Million	140,125 New	140,125 $26.1 Million
Q2 2018 Aug 14, 2018	SELL	$185.56 - $227.9 $79.6 Million - $97.8 Million	-429,006 Closed	0 $0
Q1 2018 May 15, 2018	BUY	$157.81 - $204.73 $11.9 Million - $15.4 Million	75,410 Added 21.33%	429,006 $0
Q4 2017 Feb 14, 2018	BUY	$147.68 - $168.37 $8.33 Million - $9.5 Million	56,436 Added 18.99%	353,596 $0
Q3 2017 Nov 14, 2017	BUY	$150.32 - $166.46 $44.7 Million - $49.5 Million	297,160	297,160 $0

Others Institutions Holding IDXX

# of Institutions

1,452

Shares Held

73.6M

Call Options Held

249K

Put Options Held

199K

View Full List

About IDEXX LABORATORIES INC

Ticker IDXX
Exchange NASDAQ
Sector Healthcare
Industry Diagnostics & Research
Shares Outstandng 83,253,696
Market Cap $57.4B
Description
IDEXX Laboratories, Inc. develops, manufactures, and distributes products and services primarily for the companion animal veterinary, livestock and poultry, dairy, and water testing markets worldwide. The company operates through CAG; Water Quality Products; LPD; and Other segments. It provides point-of-care veterinary diagnostic products, inclu...

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Select Equity Group, L.P. Idexx Laboratories Inc Transaction History