AMERICAN TOWER CORP NEW

Ticker: AMT CUSIP: 03027X100 Class: COM

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

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

Q4 2025

Shares 698,720 Value ($000) $122,674 Avg Close $180.30 Range $169.12 - $192.63

Q3 2025

Shares 722,959 Value ($000) $139,039 Avg Close $204.56 Range $185.10 - $230.04

Q2 2025

Shares 724,828 Value ($000) $160,201 Avg Close $210.37 Range $190.80 - $225.87

Q1 2025

Shares 723,229 Value ($000) $157,375 Avg Close $189.52 Range $166.66 - $212.16

Q4 2024

Shares 727,161 Value ($000) $133,369 Avg Close $198.35 Range $171.45 - $222.90

Q3 2024

Shares 754,366 Value ($000) $175,435 Avg Close $210.79 Range $182.10 - $231.55

Q2 2024

Shares 758,556 Value ($000) $147,448 Avg Close $176.27 Range $160.72 - $190.06

Q1 2024

Shares 757,732 Value ($000) $149,720 Avg Close $186.13 Range $169.29 - $204.74

Q4 2023

Shares 753,364 Value ($000) $162,636 Avg Close $175.15 Range $141.88 - $204.01

Q3 2023

Shares 742,649 Value ($000) $122,129 Avg Close $167.65 Range $145.17 - $184.31

Q2 2023

Shares 771,999 Value ($000) $149,721 Avg Close $178.08 Range $162.53 - $192.95

Q1 2023

Shares 787,681 Value ($000) $160,955 Avg Close $189.59 Range $171.12 - $212.87

Q4 2022

Shares 795,202 Value ($000) $168,471 Avg Close $186.71 Range $159.82 - $204.49

Q3 2022

Shares 772,432 Value ($000) $165,841 Avg Close $228.80 Range $188.24 - $251.54

Q2 2022

Shares 780,543 Value ($000) $199,499 Avg Close $222.20 Range $196.54 - $240.37

Q1 2022

Shares 772,572 Value ($000) $194,086 Avg Close $214.86 Range $193.72 - $257.60

Q4 2021

Shares 817,533 Value ($000) $239,128 Avg Close $239.48 Range $222.02 - $259.23

Q3 2021

Shares 790,564 Value ($000) $209,824 Avg Close $248.67 Range $232.43 - $264.88

Q2 2021

Shares 810,789 Value ($000) $219,027 Avg Close $221.28 Range $204.65 - $239.67

Q1 2021

Shares 826,476 Value ($000) $197,577 Avg Close $192.28 Range $170.54 - $209.67

Q4 2020

Shares 827,788 Value ($000) $185,805 Avg Close $199.71 Range $184.97 - $217.31

Q3 2020

Shares 807,592 Value ($000) $195,219 Avg Close $216.72 Range $200.88 - $232.60

Q2 2020

Shares 800,203 Value ($000) $206,884 Avg Close $210.56 Range $171.21 - $229.12

Q1 2020

Shares 801,035 Value ($000) $174,425 Avg Close $197.22 Range $147.72 - $219.16

Q4 2019

Shares 804,041 Value ($000) $184,785 Avg Close $183.82 Range $171.19 - $195.06

Q3 2019

Shares 742,721 Value ($000) $164,238 Avg Close $183.38 Range $167.57 - $203.29

Q2 2019

Shares 734,186 Value ($000) $150,104 Avg Close $168.17 Range $157.69 - $183.80

Q1 2019

Shares 728,799 Value ($000) $143,617 Avg Close $146.03 Range $128.16 - $164.30

Q4 2018

Shares 725,588 Value ($000) $114,781 Avg Close $129.50 Range $116.26 - $139.59

Q3 2018

Shares 707,522 Value ($000) $102,803 Avg Close $120.79 Range $114.07 - $125.11

Q2 2018

Shares 707,466 Value ($000) $101,995 Avg Close $113.83 Range $109.35 - $119.75

Q1 2018

Shares 678,655 Value ($000) $98,636 Avg Close $114.77 Range $106.21 - $122.30

Q4 2017

Shares 701,966 Value ($000) $100,149 Avg Close $115.75 Range $109.97 - $125.87

Q3 2017

Shares 709,242 Value ($000) $96,939 Avg Close $112.31 Range $105.52 - $119.95

Q2 2017

Shares 779,340 Value ($000) $103,122 Avg Close $102.88 Range $96.18 - $110.06

Q1 2017

Shares 838,960 Value ($000) $101,967 Avg Close $87.85 Range $81.86 - $97.31

Q4 2016

Shares 877,960 Value ($000) $92,783 Avg Close $86.33 Range $79.20 - $93.79

Q3 2016

Shares 901,360 Value ($000) $102,151 Avg Close $90.38 Range $85.02 - $93.47

Q2 2016

Shares 893,860 Value ($000) $101,551 Avg Close $83.75 Range $79.73 - $89.81

Q1 2016

Shares 898,917 Value ($000) $92,022 Avg Close $73.16 Range $65.02 - $80.56

Q4 2015

Shares 784,095 Value ($000) $76,018 Avg Close $75.94 Range $67.91 - $81.06

Q3 2015

Shares 771,517 Value ($000) $67,878 Avg Close $72.97 Range $67.60 - $78.65

Q2 2015

Shares 772,717 Value ($000) $72,087 Avg Close $72.97 Range $70.92 - $75.72

Q1 2015

Shares 773,968 Value ($000) $72,869 Avg Close $74.63 Range $71.55 - $78.20

Q4 2014

Shares 737,568 Value ($000) $72,909 Avg Close $75.17 Range $68.98 - $81.29

Q3 2014

Shares 730,645 Value ($000) $68,410 Avg Close $72.53 Range $67.84 - $76.11

Q2 2014

Shares 722,497 Value ($000) $65,010 Avg Close $65.68 Range $60.55 - $68.85

Q1 2014

Shares 719,397 Value ($000) $58,897 Avg Close $61.59 Range $59.25 - $64.17

Q4 2013

Shares 715,997 Value ($000) $57,151 Avg Close $58.52 Range $53.88 - $61.27

Q3 2013

Shares 711,097 Value ($000) $52,714 Avg Close $54.19 Range $50.94 - $58.77

Q2 2013

Shares 689,165 Value ($000) $50,426 Avg Close $59.51 Range $52.17 - $63.74

Q1 2013

Shares 685,987 Value ($000) $52,766 Avg Close $57.28 Range $54.06 - $59.59

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	698,720	$122,674	$180.30	$169.12 - $192.63
Q3 2025	722,959	$139,039	$204.56	$185.10 - $230.04
Q2 2025	724,828	$160,201	$210.37	$190.80 - $225.87
Q1 2025	723,229	$157,375	$189.52	$166.66 - $212.16
Q4 2024	727,161	$133,369	$198.35	$171.45 - $222.90
Q3 2024	754,366	$175,435	$210.79	$182.10 - $231.55
Q2 2024	758,556	$147,448	$176.27	$160.72 - $190.06
Q1 2024	757,732	$149,720	$186.13	$169.29 - $204.74
Q4 2023	753,364	$162,636	$175.15	$141.88 - $204.01
Q3 2023	742,649	$122,129	$167.65	$145.17 - $184.31
Q2 2023	771,999	$149,721	$178.08	$162.53 - $192.95
Q1 2023	787,681	$160,955	$189.59	$171.12 - $212.87
Q4 2022	795,202	$168,471	$186.71	$159.82 - $204.49
Q3 2022	772,432	$165,841	$228.80	$188.24 - $251.54
Q2 2022	780,543	$199,499	$222.20	$196.54 - $240.37
Q1 2022	772,572	$194,086	$214.86	$193.72 - $257.60
Q4 2021	817,533	$239,128	$239.48	$222.02 - $259.23
Q3 2021	790,564	$209,824	$248.67	$232.43 - $264.88
Q2 2021	810,789	$219,027	$221.28	$204.65 - $239.67
Q1 2021	826,476	$197,577	$192.28	$170.54 - $209.67
Q4 2020	827,788	$185,805	$199.71	$184.97 - $217.31
Q3 2020	807,592	$195,219	$216.72	$200.88 - $232.60
Q2 2020	800,203	$206,884	$210.56	$171.21 - $229.12
Q1 2020	801,035	$174,425	$197.22	$147.72 - $219.16
Q4 2019	804,041	$184,785	$183.82	$171.19 - $195.06
Q3 2019	742,721	$164,238	$183.38	$167.57 - $203.29
Q2 2019	734,186	$150,104	$168.17	$157.69 - $183.80
Q1 2019	728,799	$143,617	$146.03	$128.16 - $164.30
Q4 2018	725,588	$114,781	$129.50	$116.26 - $139.59
Q3 2018	707,522	$102,803	$120.79	$114.07 - $125.11
Q2 2018	707,466	$101,995	$113.83	$109.35 - $119.75
Q1 2018	678,655	$98,636	$114.77	$106.21 - $122.30
Q4 2017	701,966	$100,149	$115.75	$109.97 - $125.87
Q3 2017	709,242	$96,939	$112.31	$105.52 - $119.95
Q2 2017	779,340	$103,122	$102.88	$96.18 - $110.06
Q1 2017	838,960	$101,967	$87.85	$81.86 - $97.31
Q4 2016	877,960	$92,783	$86.33	$79.20 - $93.79
Q3 2016	901,360	$102,151	$90.38	$85.02 - $93.47
Q2 2016	893,860	$101,551	$83.75	$79.73 - $89.81
Q1 2016	898,917	$92,022	$73.16	$65.02 - $80.56
Q4 2015	784,095	$76,018	$75.94	$67.91 - $81.06
Q3 2015	771,517	$67,878	$72.97	$67.60 - $78.65
Q2 2015	772,717	$72,087	$72.97	$70.92 - $75.72
Q1 2015	773,968	$72,869	$74.63	$71.55 - $78.20
Q4 2014	737,568	$72,909	$75.17	$68.98 - $81.29
Q3 2014	730,645	$68,410	$72.53	$67.84 - $76.11
Q2 2014	722,497	$65,010	$65.68	$60.55 - $68.85
Q1 2014	719,397	$58,897	$61.59	$59.25 - $64.17
Q4 2013	715,997	$57,151	$58.52	$53.88 - $61.27
Q3 2013	711,097	$52,714	$54.19	$50.94 - $58.77
Q2 2013	689,165	$50,426	$59.51	$52.17 - $63.74
Q1 2013	685,987	$52,766	$57.28	$54.06 - $59.59