ALIGN TECHNOLOGY INC

Ticker: ALGN CUSIP: 016255101 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q4 2025

Shares 65,426 Value ($000) $10,216 Avg Close $143.30 Range $124.91 - $167.02

Q3 2025

Shares 107,752 Value ($000) $13,493 Avg Close $156.63 Range $122.00 - $208.31

Q2 2025

Shares 115,921 Value ($000) $21,947 Avg Close $176.66 Range $141.74 - $196.38

Q1 2025

Shares 113,727 Value ($000) $18,067 Avg Close $196.30 Range $153.77 - $237.23

Q4 2024

Shares 112,853 Value ($000) $23,531 Avg Close $223.39 Range $204.13 - $256.22

Q3 2024

Shares 116,932 Value ($000) $29,738 Avg Close $235.95 Range $196.09 - $263.24

Q2 2024

Shares 116,372 Value ($000) $28,096 Avg Close $278.40 Range $232.80 - $331.64

Q1 2024

Shares 118,477 Value ($000) $38,851 Avg Close $293.39 Range $250.28 - $335.40

Q4 2023

Shares 118,267 Value ($000) $32,405 Avg Close $237.06 Range $176.34 - $305.36

Q3 2023

Shares 116,076 Value ($000) $35,440 Avg Close $345.55 Range $293.42 - $413.20

Q2 2023

Shares 119,639 Value ($000) $42,309 Avg Close $318.43 Range $273.46 - $363.27

Q1 2023

Shares 125,198 Value ($000) $41,834 Avg Close $295.03 Range $208.29 - $368.87

Q4 2022

Shares 126,510 Value ($000) $26,681 Avg Close $200.17 Range $172.05 - $233.64

Q3 2022

Shares 125,031 Value ($000) $25,895 Avg Close $257.42 Range $204.32 - $302.97

Q2 2022

Shares 126,560 Value ($000) $29,953 Avg Close $307.23 Range $225.86 - $451.19

Q1 2022

Shares 129,245 Value ($000) $56,351 Avg Close $486.73 Range $372.62 - $658.50

Q4 2021

Shares 137,372 Value ($000) $90,278 Avg Close $642.93 Range $572.51 - $713.33

Q3 2021

Shares 134,441 Value ($000) $89,461 Avg Close $679.09 Range $589.24 - $737.45

Q2 2021

Shares 141,281 Value ($000) $86,323 Avg Close $591.84 Range $536.23 - $647.20

Q1 2021

Shares 151,171 Value ($000) $81,864 Avg Close $552.79 Range $494.45 - $634.46

Q4 2020

Shares 149,386 Value ($000) $79,829 Avg Close $449.62 Range $310.03 - $543.65

Q3 2020

Shares 146,734 Value ($000) $48,035 Avg Close $305.27 Range $267.63 - $340.29

Q2 2020

Shares 140,631 Value ($000) $38,595 Avg Close $225.21 Range $150.38 - $292.04

Q1 2020

Shares 137,919 Value ($000) $23,991 Avg Close $239.46 Range $127.88 - $301.65

Q4 2019

Shares 141,534 Value ($000) $39,494 Avg Close $249.35 Range $175.52 - $281.57

Q3 2019

Shares 132,880 Value ($000) $24,041 Avg Close $207.89 Range $169.84 - $290.78

Q2 2019

Shares 131,196 Value ($000) $35,908 Avg Close $301.97 Range $263.70 - $334.64

Q1 2019

Shares 130,598 Value ($000) $37,133 Avg Close $238.66 Range $177.93 - $284.61

Q4 2018

Shares 130,085 Value ($000) $27,244 Avg Close $252.66 Range $188.57 - $397.85

Q3 2018

Shares 126,414 Value ($000) $49,456 Avg Close $368.95 Range $332.01 - $398.88

Q2 2018

Shares 126,458 Value ($000) $43,266 Avg Close $298.30 Range $234.40 - $371.55

Q1 2018

Shares 126,131 Value ($000) $31,675 Avg Close $256.81 Range $219.11 - $287.32

Q4 2017

Shares 130,567 Value ($000) $29,011 Avg Close $227.14 Range $184.67 - $266.41

Q3 2017

Shares 131,505 Value ($000) $24,495 Avg Close $171.20 Range $148.95 - $190.04

Q2 2017

Shares 144,929 Value ($000) $21,757 Avg Close $135.62 Range $113.40 - $154.85

Q1 2017

Shares 143,409 Value ($000) $16,450 Avg Close $101.02 Range $88.56 - $115.20

Q4 2016

Shares 150,009 Value ($000) $14,420 Avg Close $92.86 Range $83.27 - $102.10

Q3 2016

Shares 154,009 Value ($000) $14,438 Avg Close $90.43 Range $80.30 - $96.90

Q2 2016

Shares 152,709 Value ($000) $12,301 Avg Close $76.47 Range $70.03 - $81.98

Q1 2016

Shares 171,574 Value ($000) $12,472 Avg Close $65.48 Range $57.31 - $73.55

Q4 2015

Shares 149,610 Value ($000) $9,852 Avg Close $64.15 Range $54.69 - $68.48

Q3 2015

Shares 147,379 Value ($000) $8,365 Avg Close $59.62 Range $52.01 - $66.53

Q2 2015

Shares 147,479 Value ($000) $9,248 Avg Close $59.07 Range $51.65 - $64.99

Q1 2015

Shares 149,542 Value ($000) $8,043 Avg Close $56.98 Range $51.77 - $64.75

Q4 2014

Shares 152,142 Value ($000) $8,506 Avg Close $52.90 Range $43.27 - $57.72

Q3 2014

Shares 150,698 Value ($000) $7,788 Avg Close $54.46 Range $51.29 - $57.79

Q2 2014

Shares 153,532 Value ($000) $8,604 Avg Close $52.02 Range $47.22 - $57.50

Q1 2014

Shares 133,042 Value ($000) $6,890 Avg Close $55.98 Range $50.37 - $65.10

Q4 2013

Shares 132,442 Value ($000) $7,569 Avg Close $53.83 Range $41.83 - $60.00

Q3 2013

Shares 131,542 Value ($000) $6,330 Avg Close $43.65 Range $36.92 - $49.08

Q2 2013

Shares 127,447 Value ($000) $4,721 Avg Close $34.47 Range $29.53 - $38.74

Q1 2013

Shares 124,913 Value ($000) $4,186 Avg Close $30.81 Range $25.61 - $33.70

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	65,426	$10,216	$143.30	$124.91 - $167.02
Q3 2025	107,752	$13,493	$156.63	$122.00 - $208.31
Q2 2025	115,921	$21,947	$176.66	$141.74 - $196.38
Q1 2025	113,727	$18,067	$196.30	$153.77 - $237.23
Q4 2024	112,853	$23,531	$223.39	$204.13 - $256.22
Q3 2024	116,932	$29,738	$235.95	$196.09 - $263.24
Q2 2024	116,372	$28,096	$278.40	$232.80 - $331.64
Q1 2024	118,477	$38,851	$293.39	$250.28 - $335.40
Q4 2023	118,267	$32,405	$237.06	$176.34 - $305.36
Q3 2023	116,076	$35,440	$345.55	$293.42 - $413.20
Q2 2023	119,639	$42,309	$318.43	$273.46 - $363.27
Q1 2023	125,198	$41,834	$295.03	$208.29 - $368.87
Q4 2022	126,510	$26,681	$200.17	$172.05 - $233.64
Q3 2022	125,031	$25,895	$257.42	$204.32 - $302.97
Q2 2022	126,560	$29,953	$307.23	$225.86 - $451.19
Q1 2022	129,245	$56,351	$486.73	$372.62 - $658.50
Q4 2021	137,372	$90,278	$642.93	$572.51 - $713.33
Q3 2021	134,441	$89,461	$679.09	$589.24 - $737.45
Q2 2021	141,281	$86,323	$591.84	$536.23 - $647.20
Q1 2021	151,171	$81,864	$552.79	$494.45 - $634.46
Q4 2020	149,386	$79,829	$449.62	$310.03 - $543.65
Q3 2020	146,734	$48,035	$305.27	$267.63 - $340.29
Q2 2020	140,631	$38,595	$225.21	$150.38 - $292.04
Q1 2020	137,919	$23,991	$239.46	$127.88 - $301.65
Q4 2019	141,534	$39,494	$249.35	$175.52 - $281.57
Q3 2019	132,880	$24,041	$207.89	$169.84 - $290.78
Q2 2019	131,196	$35,908	$301.97	$263.70 - $334.64
Q1 2019	130,598	$37,133	$238.66	$177.93 - $284.61
Q4 2018	130,085	$27,244	$252.66	$188.57 - $397.85
Q3 2018	126,414	$49,456	$368.95	$332.01 - $398.88
Q2 2018	126,458	$43,266	$298.30	$234.40 - $371.55
Q1 2018	126,131	$31,675	$256.81	$219.11 - $287.32
Q4 2017	130,567	$29,011	$227.14	$184.67 - $266.41
Q3 2017	131,505	$24,495	$171.20	$148.95 - $190.04
Q2 2017	144,929	$21,757	$135.62	$113.40 - $154.85
Q1 2017	143,409	$16,450	$101.02	$88.56 - $115.20
Q4 2016	150,009	$14,420	$92.86	$83.27 - $102.10
Q3 2016	154,009	$14,438	$90.43	$80.30 - $96.90
Q2 2016	152,709	$12,301	$76.47	$70.03 - $81.98
Q1 2016	171,574	$12,472	$65.48	$57.31 - $73.55
Q4 2015	149,610	$9,852	$64.15	$54.69 - $68.48
Q3 2015	147,379	$8,365	$59.62	$52.01 - $66.53
Q2 2015	147,479	$9,248	$59.07	$51.65 - $64.99
Q1 2015	149,542	$8,043	$56.98	$51.77 - $64.75
Q4 2014	152,142	$8,506	$52.90	$43.27 - $57.72
Q3 2014	150,698	$7,788	$54.46	$51.29 - $57.79
Q2 2014	153,532	$8,604	$52.02	$47.22 - $57.50
Q1 2014	133,042	$6,890	$55.98	$50.37 - $65.10
Q4 2013	132,442	$7,569	$53.83	$41.83 - $60.00
Q3 2013	131,542	$6,330	$43.65	$36.92 - $49.08
Q2 2013	127,447	$4,721	$34.47	$29.53 - $38.74
Q1 2013	124,913	$4,186	$30.81	$25.61 - $33.70