IDEXX LABS INC

Ticker: IDXX CUSIP: 45168D104 Class: COM

Robeco Institutional Asset Management B.V.'s Holding History (CIK: 0001418773)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 186,127 Value ($000) $125,920 Avg Close $681.02 Range $600.57 - $769.98

Q3 2025

Shares 206,516 Value ($000) $131,941 Avg Close $606.98 Range $506.91 - $688.12

Q2 2025

Shares 207,228 Value ($000) $111,145 Avg Close $478.19 Range $356.14 - $537.47

Q1 2025

Shares 148,237 Value ($000) $62,252 Avg Close $434.21 Range $404.60 - $474.67

Q4 2024

Shares 172,328 Value ($000) $71,247 Avg Close $438.63 Range $398.50 - $505.52

Q3 2024

Shares 232,760 Value ($000) $117,595 Avg Close $485.80 Range $446.28 - $530.60

Q2 2024

Shares 236,155 Value ($000) $115,055 Avg Close $502.03 Range $462.00 - $548.88

Q1 2024

Shares 281,470 Value ($000) $151,974 Avg Close $546.49 Range $507.61 - $583.39

Q4 2023

Shares 250,416 Value ($000) $138,993 Avg Close $469.47 Range $372.50 - $568.30

Q3 2023

Shares 276,902 Value ($000) $121,081 Avg Close $498.67 Range $430.81 - $564.74

Q2 2023

Shares 285,826 Value ($000) $143,550 Avg Close $479.21 Range $446.00 - $506.56

Q1 2023

Shares 277,320 Value ($000) $138,682 Avg Close $478.56 Range $399.27 - $515.79

Q4 2022

Shares 257,933 Value ($000) $105,226 Avg Close $388.17 Range $317.06 - $448.01

Q3 2022

Shares 345,488 Value ($000) $112,562 Avg Close $367.34 Range $321.79 - $417.77

Q2 2022

Shares 298,133 Value ($000) $104,564 Avg Close $407.78 Range $318.50 - $558.01

Q1 2022

Shares 340,376 Value ($000) $186,206 Avg Close $526.03 Range $460.36 - $656.31

Q4 2021

Shares 357,281 Value ($000) $235,253 Avg Close $627.75 Range $575.59 - $672.93

Q3 2021

Shares 271,008 Value ($000) $168,540 Avg Close $671.94 Range $620.86 - $706.95

Q2 2021

Shares 312,873 Value ($000) $197,596 Avg Close $552.18 Range $482.90 - $639.65

Q1 2021

Shares 351,641 Value ($000) $172,060 Avg Close $501.01 Range $455.23 - $573.99

Q4 2020

Shares 335,386 Value ($000) $167,648 Avg Close $447.44 Range $382.68 - $503.83

Q3 2020

Shares 302,058 Value ($000) $118,742 Avg Close $369.71 Range $329.69 - $407.86

Q2 2020

Shares 268,196 Value ($000) $88,546 Avg Close $289.54 Range $226.02 - $332.68

Q1 2020

Shares 300,792 Value ($000) $72,867 Avg Close $260.97 Range $168.65 - $296.25

Q4 2019

Shares 196,723 Value ($000) $51,369 Avg Close $263.51 Range $246.74 - $294.57

Q3 2019

Shares 61,665 Value ($000) $16,769 Avg Close $278.27 Range $256.27 - $292.17

Q2 2019

Shares 62,529 Value ($000) $17,218 Avg Close $246.39 Range $214.25 - $278.61

Q1 2019

Shares 71,368 Value ($000) $15,957 Avg Close $206.43 Range $176.11 - $226.15

Q4 2018

Shares 122,226 Value ($000) $22,731 Avg Close $205.02 Range $176.15 - $252.69

Q3 2018

Shares 155,405 Value ($000) $38,801 Avg Close $242.74 Range $215.28 - $256.22

Q2 2018

Shares 147,162 Value ($000) $32,071 Avg Close $206.05 Range $183.86 - $229.01

Q1 2018

Shares 143,914 Value ($000) $27,543 Avg Close $184.56 Range $157.53 - $207.14

Q4 2017

Shares 161,963 Value ($000) $25,324 Avg Close $157.41 Range $146.09 - $168.66

Q3 2017

Shares 157,021 Value ($000) $24,416 Avg Close $158.10 Range $148.80 - $171.37

Q2 2017

Shares 149,845 Value ($000) $24,189 Avg Close $162.40 Range $153.24 - $173.01

Q1 2017

Shares 127,665 Value ($000) $19,740 Avg Close $137.84 Range $113.92 - $155.65

Q4 2016

Shares 123,003 Value ($000) $14,426 Avg Close $114.12 Range $102.45 - $121.77

Q3 2016

Shares 109,752 Value ($000) $12,372 Avg Close $105.39 Range $92.52 - $115.06

Q2 2016

Shares 776 Value ($000) $72 Avg Close $85.88 Range $76.55 - $92.87

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	186,127	$125,920	$681.02	$600.57 - $769.98
Q3 2025	206,516	$131,941	$606.98	$506.91 - $688.12
Q2 2025	207,228	$111,145	$478.19	$356.14 - $537.47
Q1 2025	148,237	$62,252	$434.21	$404.60 - $474.67
Q4 2024	172,328	$71,247	$438.63	$398.50 - $505.52
Q3 2024	232,760	$117,595	$485.80	$446.28 - $530.60
Q2 2024	236,155	$115,055	$502.03	$462.00 - $548.88
Q1 2024	281,470	$151,974	$546.49	$507.61 - $583.39
Q4 2023	250,416	$138,993	$469.47	$372.50 - $568.30
Q3 2023	276,902	$121,081	$498.67	$430.81 - $564.74
Q2 2023	285,826	$143,550	$479.21	$446.00 - $506.56
Q1 2023	277,320	$138,682	$478.56	$399.27 - $515.79
Q4 2022	257,933	$105,226	$388.17	$317.06 - $448.01
Q3 2022	345,488	$112,562	$367.34	$321.79 - $417.77
Q2 2022	298,133	$104,564	$407.78	$318.50 - $558.01
Q1 2022	340,376	$186,206	$526.03	$460.36 - $656.31
Q4 2021	357,281	$235,253	$627.75	$575.59 - $672.93
Q3 2021	271,008	$168,540	$671.94	$620.86 - $706.95
Q2 2021	312,873	$197,596	$552.18	$482.90 - $639.65
Q1 2021	351,641	$172,060	$501.01	$455.23 - $573.99
Q4 2020	335,386	$167,648	$447.44	$382.68 - $503.83
Q3 2020	302,058	$118,742	$369.71	$329.69 - $407.86
Q2 2020	268,196	$88,546	$289.54	$226.02 - $332.68
Q1 2020	300,792	$72,867	$260.97	$168.65 - $296.25
Q4 2019	196,723	$51,369	$263.51	$246.74 - $294.57
Q3 2019	61,665	$16,769	$278.27	$256.27 - $292.17
Q2 2019	62,529	$17,218	$246.39	$214.25 - $278.61
Q1 2019	71,368	$15,957	$206.43	$176.11 - $226.15
Q4 2018	122,226	$22,731	$205.02	$176.15 - $252.69
Q3 2018	155,405	$38,801	$242.74	$215.28 - $256.22
Q2 2018	147,162	$32,071	$206.05	$183.86 - $229.01
Q1 2018	143,914	$27,543	$184.56	$157.53 - $207.14
Q4 2017	161,963	$25,324	$157.41	$146.09 - $168.66
Q3 2017	157,021	$24,416	$158.10	$148.80 - $171.37
Q2 2017	149,845	$24,189	$162.40	$153.24 - $173.01
Q1 2017	127,665	$19,740	$137.84	$113.92 - $155.65
Q4 2016	123,003	$14,426	$114.12	$102.45 - $121.77
Q3 2016	109,752	$12,372	$105.39	$92.52 - $115.06
Q2 2016	776	$72	$85.88	$76.55 - $92.87