ALIGN TECHNOLOGY INC

Ticker: ALGN CUSIP: 016255101 Class: COM

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q4 2025

Shares 57,573 Value ($000) $8,990 Avg Close $143.30 Range $124.91 - $167.02

Q3 2025

Shares 36,385 Value ($000) $4,556 Avg Close $156.63 Range $122.00 - $208.31

Q2 2025

Shares 37,706 Value ($000) $7,139 Avg Close $176.66 Range $141.74 - $196.38

Q1 2025

Shares 40,010 Value ($000) $6,356 Avg Close $196.30 Range $153.77 - $237.23

Q4 2024

Shares 53,423 Value ($000) $11,139 Avg Close $223.39 Range $204.13 - $256.22

Q3 2024

Shares 48,454 Value ($000) $12,323 Avg Close $235.95 Range $196.09 - $263.24

Q2 2024

Shares 48,624 Value ($000) $11,739 Avg Close $278.40 Range $232.80 - $331.64

Q1 2024

Shares 46,127 Value ($000) $15,126 Avg Close $293.39 Range $250.28 - $335.40

Q4 2023

Shares 45,059 Value ($000) $12,346 Avg Close $237.06 Range $176.34 - $305.36

Q3 2023

Shares 54,024 Value ($000) $16,495 Avg Close $345.55 Range $293.42 - $413.20

Q2 2023

Shares 47,597 Value ($000) $16,832 Avg Close $318.43 Range $273.46 - $363.27

Q1 2023

Shares 42,014 Value ($000) $14,039 Avg Close $295.03 Range $208.29 - $368.87

Q4 2022

Shares 37,520 Value ($000) $7,913 Avg Close $200.17 Range $172.05 - $233.64

Q3 2022

Shares 79,947 Value ($000) $16,558 Avg Close $257.42 Range $204.32 - $302.97

Q2 2022

Shares 87,220 Value ($000) $20,642 Avg Close $307.23 Range $225.86 - $451.19

Q1 2022

Shares 70,739 Value ($000) $30,842 Avg Close $486.73 Range $372.62 - $658.50

Q4 2021

Shares 87,884 Value ($000) $57,756 Avg Close $642.93 Range $572.51 - $713.33

Q3 2021

Shares 98,982 Value ($000) $65,866 Avg Close $679.09 Range $589.24 - $737.45

Q2 2021

Shares 103,260 Value ($000) $63,092 Avg Close $591.84 Range $536.23 - $647.20

Q1 2021

Shares 64,045 Value ($000) $34,682 Avg Close $552.79 Range $494.45 - $634.46

Q4 2020

Shares 42,129 Value ($000) $22,513 Avg Close $449.62 Range $310.03 - $543.65

Q3 2020

Shares 39,885 Value ($000) $13,057 Avg Close $305.27 Range $267.63 - $340.29

Q2 2020

Shares 39,715 Value ($000) $10,899 Avg Close $225.21 Range $150.38 - $292.04

Q1 2020

Shares 36,715 Value ($000) $6,387 Avg Close $239.46 Range $127.88 - $301.65

Q4 2019

Shares 66,567 Value ($000) $18,575 Avg Close $249.35 Range $175.52 - $281.57

Q3 2019

Shares 60,038 Value ($000) $10,862 Avg Close $207.89 Range $169.84 - $290.78

Q2 2019

Shares 70,156 Value ($000) $19,202 Avg Close $301.97 Range $263.70 - $334.64

Q1 2019

Shares 73,533 Value ($000) $20,908 Avg Close $238.66 Range $177.93 - $284.61

Q4 2018

Shares 83,835 Value ($000) $17,558 Avg Close $252.66 Range $188.57 - $397.85

Q3 2018

Shares 83,685 Value ($000) $32,739 Avg Close $368.95 Range $332.01 - $398.88

Q2 2018

Shares 88,172 Value ($000) $30,167 Avg Close $298.30 Range $234.40 - $371.55

Q1 2018

Shares 88,387 Value ($000) $22,197 Avg Close $256.81 Range $219.11 - $287.32

Q4 2017

Shares 100,541 Value ($000) $22,339 Avg Close $227.14 Range $184.67 - $266.41

Q3 2017

Shares 99,641 Value ($000) $18,560 Avg Close $171.20 Range $148.95 - $190.04

Q2 2017

Shares 93,789 Value ($000) $14,080 Avg Close $135.62 Range $113.40 - $154.85

Q1 2017

Shares 73,589 Value ($000) $8,441 Avg Close $101.02 Range $88.56 - $115.20

Q4 2016

Shares 39,427 Value ($000) $3,790 Avg Close $92.86 Range $83.27 - $102.10

Q3 2016

Shares 46,240 Value ($000) $4,335 Avg Close $90.43 Range $80.30 - $96.90

Q2 2016

Shares 47,040 Value ($000) $3,789 Avg Close $76.47 Range $70.03 - $81.98

Q1 2016

Shares 56,270 Value ($000) $4,090 Avg Close $65.48 Range $57.31 - $73.55

Q4 2015

Shares 58,740 Value ($000) $3,868 Avg Close $64.15 Range $54.69 - $68.48

Q3 2015

Shares 60,310 Value ($000) $3,423 Avg Close $59.62 Range $52.01 - $66.53

Q2 2015

Shares 61,980 Value ($000) $3,887 Avg Close $59.07 Range $51.65 - $64.99

Q1 2015

Shares 61,990 Value ($000) $3,334 Avg Close $56.98 Range $51.77 - $64.75

Q4 2014

Shares 63,680 Value ($000) $3,560 Avg Close $52.90 Range $43.27 - $57.72

Q3 2014

Shares 60,050 Value ($000) $3,103 Avg Close $54.46 Range $51.29 - $57.79

Q2 2014

Shares 59,650 Value ($000) $3,343 Avg Close $52.02 Range $47.22 - $57.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	57,573	$8,990	$143.30	$124.91 - $167.02
Q3 2025	36,385	$4,556	$156.63	$122.00 - $208.31
Q2 2025	37,706	$7,139	$176.66	$141.74 - $196.38
Q1 2025	40,010	$6,356	$196.30	$153.77 - $237.23
Q4 2024	53,423	$11,139	$223.39	$204.13 - $256.22
Q3 2024	48,454	$12,323	$235.95	$196.09 - $263.24
Q2 2024	48,624	$11,739	$278.40	$232.80 - $331.64
Q1 2024	46,127	$15,126	$293.39	$250.28 - $335.40
Q4 2023	45,059	$12,346	$237.06	$176.34 - $305.36
Q3 2023	54,024	$16,495	$345.55	$293.42 - $413.20
Q2 2023	47,597	$16,832	$318.43	$273.46 - $363.27
Q1 2023	42,014	$14,039	$295.03	$208.29 - $368.87
Q4 2022	37,520	$7,913	$200.17	$172.05 - $233.64
Q3 2022	79,947	$16,558	$257.42	$204.32 - $302.97
Q2 2022	87,220	$20,642	$307.23	$225.86 - $451.19
Q1 2022	70,739	$30,842	$486.73	$372.62 - $658.50
Q4 2021	87,884	$57,756	$642.93	$572.51 - $713.33
Q3 2021	98,982	$65,866	$679.09	$589.24 - $737.45
Q2 2021	103,260	$63,092	$591.84	$536.23 - $647.20
Q1 2021	64,045	$34,682	$552.79	$494.45 - $634.46
Q4 2020	42,129	$22,513	$449.62	$310.03 - $543.65
Q3 2020	39,885	$13,057	$305.27	$267.63 - $340.29
Q2 2020	39,715	$10,899	$225.21	$150.38 - $292.04
Q1 2020	36,715	$6,387	$239.46	$127.88 - $301.65
Q4 2019	66,567	$18,575	$249.35	$175.52 - $281.57
Q3 2019	60,038	$10,862	$207.89	$169.84 - $290.78
Q2 2019	70,156	$19,202	$301.97	$263.70 - $334.64
Q1 2019	73,533	$20,908	$238.66	$177.93 - $284.61
Q4 2018	83,835	$17,558	$252.66	$188.57 - $397.85
Q3 2018	83,685	$32,739	$368.95	$332.01 - $398.88
Q2 2018	88,172	$30,167	$298.30	$234.40 - $371.55
Q1 2018	88,387	$22,197	$256.81	$219.11 - $287.32
Q4 2017	100,541	$22,339	$227.14	$184.67 - $266.41
Q3 2017	99,641	$18,560	$171.20	$148.95 - $190.04
Q2 2017	93,789	$14,080	$135.62	$113.40 - $154.85
Q1 2017	73,589	$8,441	$101.02	$88.56 - $115.20
Q4 2016	39,427	$3,790	$92.86	$83.27 - $102.10
Q3 2016	46,240	$4,335	$90.43	$80.30 - $96.90
Q2 2016	47,040	$3,789	$76.47	$70.03 - $81.98
Q1 2016	56,270	$4,090	$65.48	$57.31 - $73.55
Q4 2015	58,740	$3,868	$64.15	$54.69 - $68.48
Q3 2015	60,310	$3,423	$59.62	$52.01 - $66.53
Q2 2015	61,980	$3,887	$59.07	$51.65 - $64.99
Q1 2015	61,990	$3,334	$56.98	$51.77 - $64.75
Q4 2014	63,680	$3,560	$52.90	$43.27 - $57.72
Q3 2014	60,050	$3,103	$54.46	$51.29 - $57.79
Q2 2014	59,650	$3,343	$52.02	$47.22 - $57.50