Idexx Laboratories Inc /De

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC IDXX

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/9/2026

Shares

441,324

Value ($000)

298,569

Weight

0.8%

2019 Q4 - 2025 Q4 (25 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q4	2/9/2026	298,569	0.8%	441,324	12/31/2025
2025 Q3	11/12/2025	293,263	0.8%	459,019	9/30/2025
2025 Q2	7/29/2025	367,440	1.0%	685,088	6/30/2025
2025 Q1	5/9/2025	267,555	0.8%	637,111	3/31/2025
2024 Q4	2/10/2025	174,527	0.4%	422,133	12/31/2024
2024 Q3	11/8/2024	26,606	0.1%	52,662	9/30/2024
2024 Q2	8/8/2024	32,701	0.1%	67,121	6/30/2024
2024 Q1	5/8/2024	37,270	0.1%	69,028	3/31/2024
2023 Q4	2/9/2024	37,926	0.1%	68,329	12/31/2023
2023 Q3	11/9/2023	29,356	0.1%	67,135	9/30/2023
2023 Q2	8/11/2023	37,688	0.1%	75,041	6/30/2023
2023 Q1	5/12/2023	37,666	0.1%	75,320	3/31/2023
2022 Q4	2/9/2023	31,698	0.1%	77,699	12/31/2022
2022 Q3	11/9/2022	35,071	0.1%	107,646	9/30/2022
2022 Q2	8/10/2022	38,791	0.1%	110,602	6/30/2022
2022 Q1	5/11/2022	63,694	0.2%	116,429	3/31/2022
2021 Q4	2/14/2022	81,641	0.2%	123,988	12/31/2021
2021 Q3	11/10/2021	75,739	0.2%	121,787	9/30/2021
2021 Q2	8/12/2021	77,796	0.2%	123,182	6/30/2021
2021 Q1	5/13/2021	46,601	0.2%	95,238	3/31/2021
2020 Q4	2/9/2021	54,706	0.2%	109,441	12/31/2020
2020 Q3	11/6/2020	50,705	0.2%	128,984	9/30/2020
2020 Q2	8/12/2020	47,604	0.2%	144,185	6/30/2020
2020 Q1	5/8/2020	40,430	0.2%	166,900	3/31/2020
2019 Q4	2/12/2020	30,062	0.1%	115,122	12/31/2019