IDEXX LABS INC

Ticker: IDXX CUSIP: 45168D104 Class: COM

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

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

Q4 2025

Shares 549,750 Value ($000) $371,941 Avg Close $681.02 Range $600.57 - $769.98

Q3 2025

Shares 544,185 Value ($000) $347,641 Avg Close $606.98 Range $506.91 - $688.12

Q2 2025

Shares 557,186 Value ($000) $298,830 Avg Close $478.19 Range $356.14 - $537.47

Q1 2025

Shares 565,508 Value ($000) $237,458 Avg Close $434.21 Range $404.60 - $474.67

Q4 2024

Shares 586,701 Value ($000) $242,569 Avg Close $438.63 Range $398.50 - $505.52

Q3 2024

Shares 602,718 Value ($000) $304,521 Avg Close $485.80 Range $446.28 - $530.60

Q2 2024

Shares 512,788 Value ($000) $249,855 Avg Close $502.03 Range $462.00 - $548.88

Q1 2024

Shares 453,269 Value ($000) $244,734 Avg Close $546.49 Range $507.61 - $583.39

Q4 2023

Shares 451,985 Value ($000) $250,881 Avg Close $469.47 Range $372.50 - $568.30

Q3 2023

Shares 427,133 Value ($000) $186,779 Avg Close $498.67 Range $430.81 - $564.74

Q2 2023

Shares 444,660 Value ($000) $223,309 Avg Close $479.21 Range $446.00 - $506.56

Q1 2023

Shares 439,178 Value ($000) $219,611 Avg Close $478.56 Range $399.27 - $515.79

Q4 2022

Shares 414,334 Value ($000) $169 Avg Close $388.17 Range $317.06 - $448.01

Q3 2022

Shares 401,428 Value ($000) $130,803 Avg Close $367.34 Range $321.79 - $417.77

Q2 2022

Shares 395,596 Value ($000) $138,755 Avg Close $407.78 Range $318.50 - $558.01

Q1 2022

Shares 391,779 Value ($000) $214,331 Avg Close $526.03 Range $460.36 - $656.31

Q4 2021

Shares 393,773 Value ($000) $259,287 Avg Close $627.75 Range $575.59 - $672.93

Q3 2021

Shares 437,921 Value ($000) $272,368 Avg Close $671.94 Range $620.86 - $706.95

Q2 2021

Shares 439,313 Value ($000) $277,461 Avg Close $552.18 Range $482.90 - $639.65

Q1 2021

Shares 439,508 Value ($000) $214,956 Avg Close $501.01 Range $455.23 - $573.99

Q4 2020

Shares 432,796 Value ($000) $216,336 Avg Close $447.44 Range $382.68 - $503.83

Q3 2020

Shares 403,011 Value ($000) $158,403 Avg Close $369.71 Range $329.69 - $407.86

Q2 2020

Shares 420,493 Value ($000) $138,823 Avg Close $289.54 Range $226.02 - $332.68

Q1 2020

Shares 418,147 Value ($000) $101,285 Avg Close $260.97 Range $168.65 - $296.25

Q4 2019

Shares 397,400 Value ($000) $103,775 Avg Close $263.51 Range $246.74 - $294.57

Q3 2019

Shares 387,632 Value ($000) $105,411 Avg Close $278.27 Range $256.27 - $292.17

Q2 2019

Shares 365,175 Value ($000) $100,538 Avg Close $246.39 Range $214.25 - $278.61

Q1 2019

Shares 333,408 Value ($000) $74,545 Avg Close $206.43 Range $176.11 - $226.15

Q4 2018

Shares 333,359 Value ($000) $62,014 Avg Close $205.02 Range $176.15 - $252.69

Q3 2018

Shares 325,614 Value ($000) $81,290 Avg Close $242.74 Range $215.28 - $256.22

Q2 2018

Shares 324,303 Value ($000) $70,679 Avg Close $206.05 Range $183.86 - $229.01

Q1 2018

Shares 322,460 Value ($000) $61,716 Avg Close $184.56 Range $157.53 - $207.14

Q4 2017

Shares 326,023 Value ($000) $50,990 Avg Close $157.41 Range $146.09 - $168.66

Q3 2017

Shares 325,741 Value ($000) $50,647 Avg Close $158.10 Range $148.80 - $171.37

Q2 2017

Shares 328,360 Value ($000) $53,003 Avg Close $162.40 Range $153.24 - $173.01

Q1 2017

Shares 326,957 Value ($000) $50,550 Avg Close $137.84 Range $113.92 - $155.65

Q4 2016

Shares 271,018 Value ($000) $31,784 Avg Close $114.12 Range $102.45 - $121.77

Q3 2016

Shares 246,950 Value ($000) $27,837 Avg Close $105.39 Range $92.52 - $115.06

Q2 2016

Shares 239,914 Value ($000) $22,275 Avg Close $85.88 Range $76.55 - $92.87

Q1 2016

Shares 244,581 Value ($000) $19,154 Avg Close $72.01 Range $63.48 - $79.03

Q4 2015

Shares 261,564 Value ($000) $19,075 Avg Close $71.33 Range $65.03 - $77.27

Q3 2015

Shares 248,898 Value ($000) $18,478 Avg Close $71.63 Range $61.58 - $79.62

Q2 2015

Shares 245,179 Value ($000) $15,725 Avg Close $69.23 Range $61.37 - $82.24

Q1 2015

Shares 112,412 Value ($000) $17,366 Avg Close $77.81 Range $72.38 - $84.25

Q4 2014

Shares 111,990 Value ($000) $16,606 Avg Close $70.12 Range $57.56 - $76.94

Q3 2014

Shares 106,062 Value ($000) $12,499 Avg Close $63.22 Range $56.74 - $70.00

Q2 2014

Shares 86,463 Value ($000) $11,549 Avg Close $63.58 Range $57.92 - $68.06

Q1 2014

Shares 68,778 Value ($000) $8,350 Avg Close $59.57 Range $52.32 - $64.64

Q4 2013

Shares 59,488 Value ($000) $6,328 Avg Close $52.63 Range $49.56 - $56.55

Q3 2013

Shares 58,003 Value ($000) $5,778 Avg Close $48.06 Range $43.99 - $50.19

Q2 2013

Shares 50,034 Value ($000) $4,493 Avg Close $43.69 Range $40.78 - $46.30

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	549,750	$371,941	$681.02	$600.57 - $769.98
Q3 2025	544,185	$347,641	$606.98	$506.91 - $688.12
Q2 2025	557,186	$298,830	$478.19	$356.14 - $537.47
Q1 2025	565,508	$237,458	$434.21	$404.60 - $474.67
Q4 2024	586,701	$242,569	$438.63	$398.50 - $505.52
Q3 2024	602,718	$304,521	$485.80	$446.28 - $530.60
Q2 2024	512,788	$249,855	$502.03	$462.00 - $548.88
Q1 2024	453,269	$244,734	$546.49	$507.61 - $583.39
Q4 2023	451,985	$250,881	$469.47	$372.50 - $568.30
Q3 2023	427,133	$186,779	$498.67	$430.81 - $564.74
Q2 2023	444,660	$223,309	$479.21	$446.00 - $506.56
Q1 2023	439,178	$219,611	$478.56	$399.27 - $515.79
Q4 2022	414,334	$169	$388.17	$317.06 - $448.01
Q3 2022	401,428	$130,803	$367.34	$321.79 - $417.77
Q2 2022	395,596	$138,755	$407.78	$318.50 - $558.01
Q1 2022	391,779	$214,331	$526.03	$460.36 - $656.31
Q4 2021	393,773	$259,287	$627.75	$575.59 - $672.93
Q3 2021	437,921	$272,368	$671.94	$620.86 - $706.95
Q2 2021	439,313	$277,461	$552.18	$482.90 - $639.65
Q1 2021	439,508	$214,956	$501.01	$455.23 - $573.99
Q4 2020	432,796	$216,336	$447.44	$382.68 - $503.83
Q3 2020	403,011	$158,403	$369.71	$329.69 - $407.86
Q2 2020	420,493	$138,823	$289.54	$226.02 - $332.68
Q1 2020	418,147	$101,285	$260.97	$168.65 - $296.25
Q4 2019	397,400	$103,775	$263.51	$246.74 - $294.57
Q3 2019	387,632	$105,411	$278.27	$256.27 - $292.17
Q2 2019	365,175	$100,538	$246.39	$214.25 - $278.61
Q1 2019	333,408	$74,545	$206.43	$176.11 - $226.15
Q4 2018	333,359	$62,014	$205.02	$176.15 - $252.69
Q3 2018	325,614	$81,290	$242.74	$215.28 - $256.22
Q2 2018	324,303	$70,679	$206.05	$183.86 - $229.01
Q1 2018	322,460	$61,716	$184.56	$157.53 - $207.14
Q4 2017	326,023	$50,990	$157.41	$146.09 - $168.66
Q3 2017	325,741	$50,647	$158.10	$148.80 - $171.37
Q2 2017	328,360	$53,003	$162.40	$153.24 - $173.01
Q1 2017	326,957	$50,550	$137.84	$113.92 - $155.65
Q4 2016	271,018	$31,784	$114.12	$102.45 - $121.77
Q3 2016	246,950	$27,837	$105.39	$92.52 - $115.06
Q2 2016	239,914	$22,275	$85.88	$76.55 - $92.87
Q1 2016	244,581	$19,154	$72.01	$63.48 - $79.03
Q4 2015	261,564	$19,075	$71.33	$65.03 - $77.27
Q3 2015	248,898	$18,478	$71.63	$61.58 - $79.62
Q2 2015	245,179	$15,725	$69.23	$61.37 - $82.24
Q1 2015	112,412	$17,366	$77.81	$72.38 - $84.25
Q4 2014	111,990	$16,606	$70.12	$57.56 - $76.94
Q3 2014	106,062	$12,499	$63.22	$56.74 - $70.00
Q2 2014	86,463	$11,549	$63.58	$57.92 - $68.06
Q1 2014	68,778	$8,350	$59.57	$52.32 - $64.64
Q4 2013	59,488	$6,328	$52.63	$49.56 - $56.55
Q3 2013	58,003	$5,778	$48.06	$43.99 - $50.19
Q2 2013	50,034	$4,493	$43.69	$40.78 - $46.30