ALIGN TECHNOLOGY INC

Ticker: ALGN CUSIP: 016255101 Class: COM

Palo Alto Investors LP's Holding History (CIK: 0001306923)

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

Q4 2025

Shares 41,520 Value ($000) $6,483 Avg Close $143.30 Range $124.91 - $167.02

Q3 2025

Shares 45,735 Value ($000) $5,727 Avg Close $156.63 Range $122.00 - $208.31

Q2 2025

Shares 37,772 Value ($000) $7,151 Avg Close $176.66 Range $141.74 - $196.38

Q1 2025

Shares 37,772 Value ($000) $6,000 Avg Close $196.30 Range $153.77 - $237.23

Q4 2024

Shares 37,772 Value ($000) $7,876 Avg Close $223.39 Range $204.13 - $256.22

Q3 2024

Shares 37,772 Value ($000) $9,606 Avg Close $235.95 Range $196.09 - $263.24

Q2 2024

Shares 37,772 Value ($000) $9,119 Avg Close $278.40 Range $232.80 - $331.64

Q1 2024

Shares 49,105 Value ($000) $16,103 Avg Close $293.39 Range $250.28 - $335.40

Q4 2023

Shares 55,705 Value ($000) $15,263 Avg Close $237.06 Range $176.34 - $305.36

Q3 2023

Shares 55,705 Value ($000) $17,008 Avg Close $345.55 Range $293.42 - $413.20

Q2 2023

Shares 74,605 Value ($000) $26,383 Avg Close $318.43 Range $273.46 - $363.27

Q1 2023

Shares 74,605 Value ($000) $24,929 Avg Close $295.03 Range $208.29 - $368.87

Q4 2022

Shares 74,605 Value ($000) $15,734 Avg Close $200.17 Range $172.05 - $233.64

Q3 2022

Shares 44,305 Value ($000) $9,176 Avg Close $257.42 Range $204.32 - $302.97

Q2 2022

Shares 44,305 Value ($000) $10,486 Avg Close $307.23 Range $225.86 - $451.19

Q1 2022

Shares 44,305 Value ($000) $19,317 Avg Close $486.73 Range $372.62 - $658.50

Q4 2021

Shares 55,405 Value ($000) $36,411 Avg Close $642.93 Range $572.51 - $713.33

Q3 2021

Shares 55,405 Value ($000) $36,868 Avg Close $679.09 Range $589.24 - $737.45

Q2 2021

Shares 55,405 Value ($000) $33,852 Avg Close $591.84 Range $536.23 - $647.20

Q1 2021

Shares 55,405 Value ($000) $30,003 Avg Close $552.79 Range $494.45 - $634.46

Q4 2020

Shares 67,505 Value ($000) $36,073 Avg Close $449.62 Range $310.03 - $543.65

Q3 2020

Shares 67,505 Value ($000) $22,098 Avg Close $305.27 Range $267.63 - $340.29

Q2 2020

Shares 67,505 Value ($000) $18,526 Avg Close $225.21 Range $150.38 - $292.04

Q1 2020

Shares 76,205 Value ($000) $13,256 Avg Close $239.46 Range $127.88 - $301.65

Q4 2019

Shares 127,505 Value ($000) $35,579 Avg Close $249.35 Range $175.52 - $281.57

Q3 2019

Shares 147,505 Value ($000) $26,687 Avg Close $207.89 Range $169.84 - $290.78

Q2 2019

Shares 147,505 Value ($000) $40,372 Avg Close $301.97 Range $263.70 - $334.64

Q1 2019

Shares 165,405 Value ($000) $47,030 Avg Close $238.66 Range $177.93 - $284.61

Q4 2018

Shares 156,823 Value ($000) $32,843 Avg Close $252.66 Range $188.57 - $397.85

Q3 2018

Shares 147,807 Value ($000) $57,825 Avg Close $368.95 Range $332.01 - $398.88

Q2 2018

Shares 184,607 Value ($000) $63,161 Avg Close $298.30 Range $234.40 - $371.55

Q1 2018

Shares 218,707 Value ($000) $54,924 Avg Close $256.81 Range $219.11 - $287.32

Q4 2017

Shares 212,507 Value ($000) $47,217 Avg Close $227.14 Range $184.67 - $266.41

Q3 2017

Shares 223,107 Value ($000) $41,558 Avg Close $171.20 Range $148.95 - $190.04

Q2 2017

Shares 223,107 Value ($000) $33,493 Avg Close $135.62 Range $113.40 - $154.85

Q1 2017

Shares 223,107 Value ($000) $25,593 Avg Close $101.02 Range $88.56 - $115.20

Q4 2016

Shares 38,707 Value ($000) $3,721 Avg Close $92.86 Range $83.27 - $102.10

Q3 2016

Shares 37,457 Value ($000) $3,512 Avg Close $90.43 Range $80.30 - $96.90

Q2 2016

Shares 36,357 Value ($000) $2,929 Avg Close $76.47 Range $70.03 - $81.98

Q1 2016

Shares 27,757 Value ($000) $2,018 Avg Close $65.48 Range $57.31 - $73.55

Q4 2015

Shares 27,757 Value ($000) $1,828 Avg Close $64.15 Range $54.69 - $68.48

Q3 2015

Shares 27,757 Value ($000) $1,575 Avg Close $59.62 Range $52.01 - $66.53

Q2 2015

Shares 27,757 Value ($000) $1,741 Avg Close $59.07 Range $51.65 - $64.99

Q1 2015

Shares 282,057 Value ($000) $15,170 Avg Close $56.98 Range $51.77 - $64.75

Q4 2014

Shares 234,300 Value ($000) $13,100 Avg Close $52.90 Range $43.27 - $57.72

Q3 2014

Shares 213,100 Value ($000) $11,013 Avg Close $54.46 Range $51.29 - $57.79

Q2 2014

Shares 176,788 Value ($000) $9,907 Avg Close $52.02 Range $47.22 - $57.50

Q1 2014

Shares 7,788 Value ($000) $403 Avg Close $55.98 Range $50.37 - $65.10

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	41,520	$6,483	$143.30	$124.91 - $167.02
Q3 2025	45,735	$5,727	$156.63	$122.00 - $208.31
Q2 2025	37,772	$7,151	$176.66	$141.74 - $196.38
Q1 2025	37,772	$6,000	$196.30	$153.77 - $237.23
Q4 2024	37,772	$7,876	$223.39	$204.13 - $256.22
Q3 2024	37,772	$9,606	$235.95	$196.09 - $263.24
Q2 2024	37,772	$9,119	$278.40	$232.80 - $331.64
Q1 2024	49,105	$16,103	$293.39	$250.28 - $335.40
Q4 2023	55,705	$15,263	$237.06	$176.34 - $305.36
Q3 2023	55,705	$17,008	$345.55	$293.42 - $413.20
Q2 2023	74,605	$26,383	$318.43	$273.46 - $363.27
Q1 2023	74,605	$24,929	$295.03	$208.29 - $368.87
Q4 2022	74,605	$15,734	$200.17	$172.05 - $233.64
Q3 2022	44,305	$9,176	$257.42	$204.32 - $302.97
Q2 2022	44,305	$10,486	$307.23	$225.86 - $451.19
Q1 2022	44,305	$19,317	$486.73	$372.62 - $658.50
Q4 2021	55,405	$36,411	$642.93	$572.51 - $713.33
Q3 2021	55,405	$36,868	$679.09	$589.24 - $737.45
Q2 2021	55,405	$33,852	$591.84	$536.23 - $647.20
Q1 2021	55,405	$30,003	$552.79	$494.45 - $634.46
Q4 2020	67,505	$36,073	$449.62	$310.03 - $543.65
Q3 2020	67,505	$22,098	$305.27	$267.63 - $340.29
Q2 2020	67,505	$18,526	$225.21	$150.38 - $292.04
Q1 2020	76,205	$13,256	$239.46	$127.88 - $301.65
Q4 2019	127,505	$35,579	$249.35	$175.52 - $281.57
Q3 2019	147,505	$26,687	$207.89	$169.84 - $290.78
Q2 2019	147,505	$40,372	$301.97	$263.70 - $334.64
Q1 2019	165,405	$47,030	$238.66	$177.93 - $284.61
Q4 2018	156,823	$32,843	$252.66	$188.57 - $397.85
Q3 2018	147,807	$57,825	$368.95	$332.01 - $398.88
Q2 2018	184,607	$63,161	$298.30	$234.40 - $371.55
Q1 2018	218,707	$54,924	$256.81	$219.11 - $287.32
Q4 2017	212,507	$47,217	$227.14	$184.67 - $266.41
Q3 2017	223,107	$41,558	$171.20	$148.95 - $190.04
Q2 2017	223,107	$33,493	$135.62	$113.40 - $154.85
Q1 2017	223,107	$25,593	$101.02	$88.56 - $115.20
Q4 2016	38,707	$3,721	$92.86	$83.27 - $102.10
Q3 2016	37,457	$3,512	$90.43	$80.30 - $96.90
Q2 2016	36,357	$2,929	$76.47	$70.03 - $81.98
Q1 2016	27,757	$2,018	$65.48	$57.31 - $73.55
Q4 2015	27,757	$1,828	$64.15	$54.69 - $68.48
Q3 2015	27,757	$1,575	$59.62	$52.01 - $66.53
Q2 2015	27,757	$1,741	$59.07	$51.65 - $64.99
Q1 2015	282,057	$15,170	$56.98	$51.77 - $64.75
Q4 2014	234,300	$13,100	$52.90	$43.27 - $57.72
Q3 2014	213,100	$11,013	$54.46	$51.29 - $57.79
Q2 2014	176,788	$9,907	$52.02	$47.22 - $57.50
Q1 2014	7,788	$403	$55.98	$50.37 - $65.10