ALIGN TECHNOLOGY INC

Ticker: ALGN CUSIP: 016255101 Class: COM

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q4 2025

Shares 19,232 Value ($000) $3,003 Avg Close $143.30 Range $124.91 - $167.02

Q3 2025

Shares 34,595 Value ($000) $4,332 Avg Close $156.63 Range $122.00 - $208.31

Q2 2025

Shares 34,979 Value ($000) $6,623 Avg Close $176.66 Range $141.74 - $196.38

Q1 2025

Shares 73,607 Value ($000) $11,693 Avg Close $196.30 Range $153.77 - $237.23

Q4 2024

Shares 75,449 Value ($000) $15,732 Avg Close $223.39 Range $204.13 - $256.22

Q3 2024

Shares 141,050 Value ($000) $35,872 Avg Close $235.95 Range $196.09 - $263.24

Q2 2024

Shares 234,567 Value ($000) $56,632 Avg Close $278.40 Range $232.80 - $331.64

Q1 2024

Shares 236,798 Value ($000) $77,651 Avg Close $293.39 Range $250.28 - $335.40

Q4 2023

Shares 236,878 Value ($000) $64,905 Avg Close $237.06 Range $176.34 - $305.36

Q3 2023

Shares 191,376 Value ($000) $58,431 Avg Close $345.55 Range $293.42 - $413.20

Q2 2023

Shares 183,735 Value ($000) $64,976 Avg Close $318.43 Range $273.46 - $363.27

Q1 2023

Shares 175,480 Value ($000) $58,635 Avg Close $295.03 Range $208.29 - $368.87

Q4 2022

Shares 199,885 Value ($000) $42,156 Avg Close $200.17 Range $172.05 - $233.64

Q3 2022

Shares 193,285 Value ($000) $40,031 Avg Close $257.42 Range $204.32 - $302.97

Q2 2022

Shares 166,038 Value ($000) $39,296 Avg Close $307.23 Range $225.86 - $451.19

Q1 2022

Shares 195,340 Value ($000) $85,168 Avg Close $486.73 Range $372.62 - $658.50

Q4 2021

Shares 161,028 Value ($000) $105,824 Avg Close $642.93 Range $572.51 - $713.33

Q3 2021

Shares 129,776 Value ($000) $86,357 Avg Close $679.09 Range $589.24 - $737.45

Q2 2021

Shares 129,568 Value ($000) $79,166 Avg Close $591.84 Range $536.23 - $647.20

Q1 2021

Shares 126,847 Value ($000) $68,691 Avg Close $552.79 Range $494.45 - $634.46

Q4 2020

Shares 128,585 Value ($000) $68,713 Avg Close $449.62 Range $310.03 - $543.65

Q3 2020

Shares 124,305 Value ($000) $40,692 Avg Close $305.27 Range $267.63 - $340.29

Q2 2020

Shares 119,223 Value ($000) $32,720 Avg Close $225.21 Range $150.38 - $292.04

Q1 2020

Shares 103,262 Value ($000) $17,962 Avg Close $239.46 Range $127.88 - $301.65

Q4 2019

Shares 154,845 Value ($000) $43,208 Avg Close $249.35 Range $175.52 - $281.57

Q3 2019

Shares 174,996 Value ($000) $31,660 Avg Close $207.89 Range $169.84 - $290.78

Q2 2019

Shares 188,240 Value ($000) $51,521 Avg Close $301.97 Range $263.70 - $334.64

Q1 2019

Shares 184,724 Value ($000) $52,523 Avg Close $238.66 Range $177.93 - $284.61

Q4 2018

Shares 176,073 Value ($000) $36,875 Avg Close $252.66 Range $188.57 - $397.85

Q3 2018

Shares 227,281 Value ($000) $88,917 Avg Close $368.95 Range $332.01 - $398.88

Q2 2018

Shares 233,980 Value ($000) $80,054 Avg Close $298.30 Range $234.40 - $371.55

Q1 2018

Shares 233,295 Value ($000) $58,587 Avg Close $256.81 Range $219.11 - $287.32

Q4 2017

Shares 243,944 Value ($000) $54,202 Avg Close $227.14 Range $184.67 - $266.41

Q3 2017

Shares 263,146 Value ($000) $49,016 Avg Close $171.20 Range $148.95 - $190.04

Q2 2017

Shares 286,211 Value ($000) $42,966 Avg Close $135.62 Range $113.40 - $154.85

Q1 2017

Shares 290,818 Value ($000) $32,015 Avg Close $101.02 Range $88.56 - $115.20

Q4 2016

Shares 302,696 Value ($000) $29,098 Avg Close $92.86 Range $83.27 - $102.10

Q3 2016

Shares 312,457 Value ($000) $29,293 Avg Close $90.43 Range $80.30 - $96.90

Q2 2016

Shares 312,283 Value ($000) $25,154 Avg Close $76.47 Range $70.03 - $81.98

Q1 2016

Shares 311,073 Value ($000) $22,612 Avg Close $65.48 Range $57.31 - $73.55

Q4 2015

Shares 335,236 Value ($000) $22,074 Avg Close $64.15 Range $54.69 - $68.48

Q3 2015

Shares 578,004 Value ($000) $32,807 Avg Close $59.62 Range $52.01 - $66.53

Q2 2015

Shares 3,913,616 Value ($000) $245,423 Avg Close $59.07 Range $51.65 - $64.99

Q1 2015

Shares 3,669,702 Value ($000) $197,375 Avg Close $56.98 Range $51.77 - $64.75

Q4 2014

Shares 2,973,198 Value ($000) $166,231 Avg Close $52.90 Range $43.27 - $57.72

Q3 2014

Shares 2,744,399 Value ($000) $141,830 Avg Close $54.46 Range $51.29 - $57.79

Q2 2014

Shares 2,855,673 Value ($000) $160,031 Avg Close $52.02 Range $47.22 - $57.50

Q1 2014

Shares 1,238,569 Value ($000) $64,145 Avg Close $55.98 Range $50.37 - $65.10

Q4 2013

Shares 1,256,601 Value ($000) $71,801 Avg Close $53.83 Range $41.83 - $60.00

Q3 2013

Shares 1,572,168 Value ($000) $75,621 Avg Close $43.65 Range $36.92 - $49.08

Q2 2013

Shares 1,406,302 Value ($000) $52,088 Avg Close $34.47 Range $29.53 - $38.74

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	19,232	$3,003	$143.30	$124.91 - $167.02
Q3 2025	34,595	$4,332	$156.63	$122.00 - $208.31
Q2 2025	34,979	$6,623	$176.66	$141.74 - $196.38
Q1 2025	73,607	$11,693	$196.30	$153.77 - $237.23
Q4 2024	75,449	$15,732	$223.39	$204.13 - $256.22
Q3 2024	141,050	$35,872	$235.95	$196.09 - $263.24
Q2 2024	234,567	$56,632	$278.40	$232.80 - $331.64
Q1 2024	236,798	$77,651	$293.39	$250.28 - $335.40
Q4 2023	236,878	$64,905	$237.06	$176.34 - $305.36
Q3 2023	191,376	$58,431	$345.55	$293.42 - $413.20
Q2 2023	183,735	$64,976	$318.43	$273.46 - $363.27
Q1 2023	175,480	$58,635	$295.03	$208.29 - $368.87
Q4 2022	199,885	$42,156	$200.17	$172.05 - $233.64
Q3 2022	193,285	$40,031	$257.42	$204.32 - $302.97
Q2 2022	166,038	$39,296	$307.23	$225.86 - $451.19
Q1 2022	195,340	$85,168	$486.73	$372.62 - $658.50
Q4 2021	161,028	$105,824	$642.93	$572.51 - $713.33
Q3 2021	129,776	$86,357	$679.09	$589.24 - $737.45
Q2 2021	129,568	$79,166	$591.84	$536.23 - $647.20
Q1 2021	126,847	$68,691	$552.79	$494.45 - $634.46
Q4 2020	128,585	$68,713	$449.62	$310.03 - $543.65
Q3 2020	124,305	$40,692	$305.27	$267.63 - $340.29
Q2 2020	119,223	$32,720	$225.21	$150.38 - $292.04
Q1 2020	103,262	$17,962	$239.46	$127.88 - $301.65
Q4 2019	154,845	$43,208	$249.35	$175.52 - $281.57
Q3 2019	174,996	$31,660	$207.89	$169.84 - $290.78
Q2 2019	188,240	$51,521	$301.97	$263.70 - $334.64
Q1 2019	184,724	$52,523	$238.66	$177.93 - $284.61
Q4 2018	176,073	$36,875	$252.66	$188.57 - $397.85
Q3 2018	227,281	$88,917	$368.95	$332.01 - $398.88
Q2 2018	233,980	$80,054	$298.30	$234.40 - $371.55
Q1 2018	233,295	$58,587	$256.81	$219.11 - $287.32
Q4 2017	243,944	$54,202	$227.14	$184.67 - $266.41
Q3 2017	263,146	$49,016	$171.20	$148.95 - $190.04
Q2 2017	286,211	$42,966	$135.62	$113.40 - $154.85
Q1 2017	290,818	$32,015	$101.02	$88.56 - $115.20
Q4 2016	302,696	$29,098	$92.86	$83.27 - $102.10
Q3 2016	312,457	$29,293	$90.43	$80.30 - $96.90
Q2 2016	312,283	$25,154	$76.47	$70.03 - $81.98
Q1 2016	311,073	$22,612	$65.48	$57.31 - $73.55
Q4 2015	335,236	$22,074	$64.15	$54.69 - $68.48
Q3 2015	578,004	$32,807	$59.62	$52.01 - $66.53
Q2 2015	3,913,616	$245,423	$59.07	$51.65 - $64.99
Q1 2015	3,669,702	$197,375	$56.98	$51.77 - $64.75
Q4 2014	2,973,198	$166,231	$52.90	$43.27 - $57.72
Q3 2014	2,744,399	$141,830	$54.46	$51.29 - $57.79
Q2 2014	2,855,673	$160,031	$52.02	$47.22 - $57.50
Q1 2014	1,238,569	$64,145	$55.98	$50.37 - $65.10
Q4 2013	1,256,601	$71,801	$53.83	$41.83 - $60.00
Q3 2013	1,572,168	$75,621	$43.65	$36.92 - $49.08
Q2 2013	1,406,302	$52,088	$34.47	$29.53 - $38.74