IDEXX LABS INC

Ticker: IDXX CUSIP: 45168D104 Class: COM

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS's Holding History (CIK: 0001083190)

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

Q4 2025

Shares 18,574 Value ($000) $12,566 Avg Close $681.02 Range $600.57 - $769.98

Q3 2025

Shares 19,212 Value ($000) $12,274 Avg Close $606.98 Range $506.91 - $688.12

Q2 2025

Shares 19,724 Value ($000) $10,579 Avg Close $478.19 Range $356.14 - $537.47

Q1 2025

Shares 18,726 Value ($000) $7,864 Avg Close $434.21 Range $404.60 - $474.67

Q4 2024

Shares 17,411 Value ($000) $7,198 Avg Close $438.63 Range $398.50 - $505.52

Q3 2024

Shares 17,917 Value ($000) $9,052 Avg Close $485.80 Range $446.28 - $530.60

Q2 2024

Shares 18,140 Value ($000) $8,838 Avg Close $502.03 Range $462.00 - $548.88

Q1 2024

Shares 18,232 Value ($000) $9,844 Avg Close $546.49 Range $507.61 - $583.39

Q4 2023

Shares 18,197 Value ($000) $10,100 Avg Close $469.47 Range $372.50 - $568.30

Q3 2023

Shares 16,691 Value ($000) $7,298 Avg Close $498.67 Range $430.81 - $564.74

Q2 2023

Shares 14,476 Value ($000) $7,270 Avg Close $479.21 Range $446.00 - $506.56

Q1 2023

Shares 14,040 Value ($000) $7,021 Avg Close $478.56 Range $399.27 - $515.79

Q4 2022

Shares 13,999 Value ($000) $6 Avg Close $388.17 Range $317.06 - $448.01

Q3 2022

Shares 12,178 Value ($000) $3,968 Avg Close $367.34 Range $321.79 - $417.77

Q2 2022

Shares 12,231 Value ($000) $4,290 Avg Close $407.78 Range $318.50 - $558.01

Q1 2022

Shares 11,346 Value ($000) $6,207 Avg Close $526.03 Range $460.36 - $656.31

Q4 2021

Shares 10,643 Value ($000) $7,008 Avg Close $627.75 Range $575.59 - $672.93

Q3 2021

Shares 10,661 Value ($000) $6,630 Avg Close $671.94 Range $620.86 - $706.95

Q2 2021

Shares 10,685 Value ($000) $6,748 Avg Close $552.18 Range $482.90 - $639.65

Q1 2021

Shares 10,684 Value ($000) $5,228 Avg Close $501.01 Range $455.23 - $573.99

Q4 2020

Shares 10,658 Value ($000) $5,328 Avg Close $447.44 Range $382.68 - $503.83

Q3 2020

Shares 7,881 Value ($000) $3,098 Avg Close $369.71 Range $329.69 - $407.86

Q2 2020

Shares 4,857 Value ($000) $1,604 Avg Close $289.54 Range $226.02 - $332.68

Q1 2020

Shares 5,480 Value ($000) $1,327 Avg Close $260.97 Range $168.65 - $296.25

Q4 2019

Shares 5,524 Value ($000) $1,442 Avg Close $263.51 Range $246.74 - $294.57

Q3 2019

Shares 5,517 Value ($000) $1,500 Avg Close $278.27 Range $256.27 - $292.17

Q2 2019

Shares 5,049 Value ($000) $1,390 Avg Close $246.39 Range $214.25 - $278.61

Q1 2019

Shares 5,028 Value ($000) $1,124 Avg Close $206.43 Range $176.11 - $226.15

Q4 2018

Shares 4,704 Value ($000) $875 Avg Close $205.02 Range $176.15 - $252.69

Q3 2018

Shares 7,106 Value ($000) $1,774 Avg Close $242.74 Range $215.28 - $256.22

Q2 2018

Shares 9,093 Value ($000) $1,982 Avg Close $206.05 Range $183.86 - $229.01

Q1 2018

Shares 7,796 Value ($000) $1,492 Avg Close $184.56 Range $157.53 - $207.14

Q4 2017

Shares 7,802 Value ($000) $1,220 Avg Close $157.41 Range $146.09 - $168.66

Q3 2017

Shares 7,098 Value ($000) $1,104 Avg Close $158.10 Range $148.80 - $171.37

Q2 2017

Shares 6,547 Value ($000) $1,057 Avg Close $162.40 Range $153.24 - $173.01

Q1 2017

Shares 6,528 Value ($000) $1,009 Avg Close $137.84 Range $113.92 - $155.65

Q4 2016

Shares 13,274 Value ($000) $1,557 Avg Close $114.12 Range $102.45 - $121.77

Q3 2016

Shares 13,244 Value ($000) $1,493 Avg Close $105.39 Range $92.52 - $115.06

Q2 2016

Shares 17,232 Value ($000) $1,600 Avg Close $85.88 Range $76.55 - $92.87

Q1 2016

Shares 16,023 Value ($000) $1,255 Avg Close $72.01 Range $63.48 - $79.03

Q4 2015

Shares 26,373 Value ($000) $1,923 Avg Close $71.33 Range $65.03 - $77.27

Q3 2015

Shares 26,561 Value ($000) $1,972 Avg Close $71.63 Range $61.58 - $79.62

Q2 2015

Shares 27,041 Value ($000) $1,734 Avg Close $69.23 Range $61.37 - $82.24

Q1 2015

Shares 12,299 Value ($000) $1,900 Avg Close $77.81 Range $72.38 - $84.25

Q4 2014

Shares 10,229 Value ($000) $1,517 Avg Close $70.12 Range $57.56 - $76.94

Q3 2014

Shares 6,977 Value ($000) $822 Avg Close $63.22 Range $56.74 - $70.00

Q2 2014

Shares 7,133 Value ($000) $953 Avg Close $63.58 Range $57.92 - $68.06

Q1 2014

Shares 7,205 Value ($000) $875 Avg Close $59.57 Range $52.32 - $64.64

Q4 2013

Shares 7,283 Value ($000) $775 Avg Close $52.63 Range $49.56 - $56.55

Q3 2013

Shares 7,458 Value ($000) $743 Avg Close $48.06 Range $43.99 - $50.19

Q2 2013

Shares 7,699 Value ($000) $691 Avg Close $43.69 Range $40.78 - $46.30

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	18,574	$12,566	$681.02	$600.57 - $769.98
Q3 2025	19,212	$12,274	$606.98	$506.91 - $688.12
Q2 2025	19,724	$10,579	$478.19	$356.14 - $537.47
Q1 2025	18,726	$7,864	$434.21	$404.60 - $474.67
Q4 2024	17,411	$7,198	$438.63	$398.50 - $505.52
Q3 2024	17,917	$9,052	$485.80	$446.28 - $530.60
Q2 2024	18,140	$8,838	$502.03	$462.00 - $548.88
Q1 2024	18,232	$9,844	$546.49	$507.61 - $583.39
Q4 2023	18,197	$10,100	$469.47	$372.50 - $568.30
Q3 2023	16,691	$7,298	$498.67	$430.81 - $564.74
Q2 2023	14,476	$7,270	$479.21	$446.00 - $506.56
Q1 2023	14,040	$7,021	$478.56	$399.27 - $515.79
Q4 2022	13,999	$6	$388.17	$317.06 - $448.01
Q3 2022	12,178	$3,968	$367.34	$321.79 - $417.77
Q2 2022	12,231	$4,290	$407.78	$318.50 - $558.01
Q1 2022	11,346	$6,207	$526.03	$460.36 - $656.31
Q4 2021	10,643	$7,008	$627.75	$575.59 - $672.93
Q3 2021	10,661	$6,630	$671.94	$620.86 - $706.95
Q2 2021	10,685	$6,748	$552.18	$482.90 - $639.65
Q1 2021	10,684	$5,228	$501.01	$455.23 - $573.99
Q4 2020	10,658	$5,328	$447.44	$382.68 - $503.83
Q3 2020	7,881	$3,098	$369.71	$329.69 - $407.86
Q2 2020	4,857	$1,604	$289.54	$226.02 - $332.68
Q1 2020	5,480	$1,327	$260.97	$168.65 - $296.25
Q4 2019	5,524	$1,442	$263.51	$246.74 - $294.57
Q3 2019	5,517	$1,500	$278.27	$256.27 - $292.17
Q2 2019	5,049	$1,390	$246.39	$214.25 - $278.61
Q1 2019	5,028	$1,124	$206.43	$176.11 - $226.15
Q4 2018	4,704	$875	$205.02	$176.15 - $252.69
Q3 2018	7,106	$1,774	$242.74	$215.28 - $256.22
Q2 2018	9,093	$1,982	$206.05	$183.86 - $229.01
Q1 2018	7,796	$1,492	$184.56	$157.53 - $207.14
Q4 2017	7,802	$1,220	$157.41	$146.09 - $168.66
Q3 2017	7,098	$1,104	$158.10	$148.80 - $171.37
Q2 2017	6,547	$1,057	$162.40	$153.24 - $173.01
Q1 2017	6,528	$1,009	$137.84	$113.92 - $155.65
Q4 2016	13,274	$1,557	$114.12	$102.45 - $121.77
Q3 2016	13,244	$1,493	$105.39	$92.52 - $115.06
Q2 2016	17,232	$1,600	$85.88	$76.55 - $92.87
Q1 2016	16,023	$1,255	$72.01	$63.48 - $79.03
Q4 2015	26,373	$1,923	$71.33	$65.03 - $77.27
Q3 2015	26,561	$1,972	$71.63	$61.58 - $79.62
Q2 2015	27,041	$1,734	$69.23	$61.37 - $82.24
Q1 2015	12,299	$1,900	$77.81	$72.38 - $84.25
Q4 2014	10,229	$1,517	$70.12	$57.56 - $76.94
Q3 2014	6,977	$822	$63.22	$56.74 - $70.00
Q2 2014	7,133	$953	$63.58	$57.92 - $68.06
Q1 2014	7,205	$875	$59.57	$52.32 - $64.64
Q4 2013	7,283	$775	$52.63	$49.56 - $56.55
Q3 2013	7,458	$743	$48.06	$43.99 - $50.19
Q2 2013	7,699	$691	$43.69	$40.78 - $46.30