AMERICAN TOWER CORP NEW

Ticker: AMT CUSIP: 03027X100 Class: COM

MAI Capital Management's Holding History (CIK: 0001040197)

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

Q4 2025

Shares 102,873 Value ($000) $18,061 Avg Close $180.30 Range $169.12 - $192.63

Q3 2025

Shares 113,702 Value ($000) $21,867 Avg Close $204.56 Range $185.10 - $230.04

Q2 2025

Shares 113,072 Value ($000) $24,991 Avg Close $210.37 Range $190.80 - $225.87

Q1 2025

Shares 113,278 Value ($000) $24,649 Avg Close $189.52 Range $166.66 - $212.16

Q4 2024

Shares 104,060 Value ($000) $19,086 Avg Close $198.35 Range $171.45 - $222.90

Q3 2023

Shares 105,930 Value ($000) $17,420 Avg Close $167.65 Range $145.17 - $184.31

Q2 2023

Shares 105,198 Value ($000) $20,402 Avg Close $178.08 Range $162.53 - $192.95

Q1 2023

Shares 113,883 Value ($000) $23,271 Avg Close $189.59 Range $171.12 - $212.87

Q4 2022

Shares 105,244 Value ($000) $22,297 Avg Close $186.71 Range $159.82 - $204.49

Q3 2022

Shares 101,030 Value ($000) $21,691 Avg Close $228.80 Range $188.24 - $251.54

Q2 2022

Shares 95,124 Value ($000) $24,313 Avg Close $222.20 Range $196.54 - $240.37

Q1 2022

Shares 81,431 Value ($000) $20,457 Avg Close $214.86 Range $193.72 - $257.60

Q4 2021

Shares 79,540 Value ($000) $23,265 Avg Close $239.48 Range $222.02 - $259.23

Q3 2021

Shares 78,909 Value ($000) $20,943 Avg Close $248.67 Range $232.43 - $264.88

Q2 2021

Shares 76,625 Value ($000) $20,699 Avg Close $221.28 Range $204.65 - $239.67

Q1 2021

Shares 74,259 Value ($000) $17,752 Avg Close $192.28 Range $170.54 - $209.67

Q4 2020

Shares 93,050 Value ($000) $20,886 Avg Close $199.71 Range $184.97 - $217.31

Q3 2020

Shares 73,290 Value ($000) $17,716 Avg Close $216.72 Range $200.88 - $232.60

Q2 2020

Shares 55,423 Value ($000) $14,329 Avg Close $210.56 Range $171.21 - $229.12

Q1 2020

Shares 51,368 Value ($000) $11,185 Avg Close $197.22 Range $147.72 - $219.16

Q4 2019

Shares 51,760 Value ($000) $11,895 Avg Close $183.82 Range $171.19 - $195.06

Q3 2019

Shares 26,623 Value ($000) $5,887 Avg Close $183.38 Range $167.57 - $203.29

Q2 2019

Shares 27,840 Value ($000) $5,692 Avg Close $168.17 Range $157.69 - $183.80

Q1 2019

Shares 27,890 Value ($000) $5,496 Avg Close $146.03 Range $128.16 - $164.30

Q4 2018

Shares 28,674 Value ($000) $4,536 Avg Close $129.50 Range $116.26 - $139.59

Q3 2018

Shares 28,170 Value ($000) $4,093 Avg Close $120.79 Range $114.07 - $125.11

Q2 2018

Shares 28,324 Value ($000) $4,084 Avg Close $113.83 Range $109.35 - $119.75

Q1 2018

Shares 28,611 Value ($000) $4,158 Avg Close $114.77 Range $106.21 - $122.30

Q4 2017

Shares 28,811 Value ($000) $4,110 Avg Close $115.75 Range $109.97 - $125.87

Q3 2017

Shares 21,809 Value ($000) $2,981 Avg Close $112.31 Range $105.52 - $119.95

Q2 2017

Shares 21,858 Value ($000) $2,892 Avg Close $102.88 Range $96.18 - $110.06

Q1 2017

Shares 21,381 Value ($000) $2,599 Avg Close $87.85 Range $81.86 - $97.31

Q4 2016

Shares 21,508 Value ($000) $2,273 Avg Close $86.33 Range $79.20 - $93.79

Q3 2016

Shares 22,086 Value ($000) $2,503 Avg Close $90.38 Range $85.02 - $93.47

Q2 2016

Shares 21,980 Value ($000) $2,497 Avg Close $83.75 Range $79.73 - $89.81

Q1 2016

Shares 21,955 Value ($000) $2,248 Avg Close $73.16 Range $65.02 - $80.56

Q4 2015

Shares 21,817 Value ($000) $2,115 Avg Close $75.94 Range $67.91 - $81.06

Q3 2015

Shares 21,705 Value ($000) $1,910 Avg Close $72.97 Range $67.60 - $78.65

Q2 2015

Shares 20,050 Value ($000) $1,870 Avg Close $72.97 Range $70.92 - $75.72

Q1 2015

Shares 19,760 Value ($000) $1,860 Avg Close $74.63 Range $71.55 - $78.20

Q4 2014

Shares 19,755 Value ($000) $1,953 Avg Close $75.17 Range $68.98 - $81.29

Q3 2014

Shares 20,434 Value ($000) $1,913 Avg Close $72.53 Range $67.84 - $76.11

Q2 2014

Shares 17,835 Value ($000) $1,605 Avg Close $65.68 Range $60.55 - $68.85

Q1 2014

Shares 18,234 Value ($000) $1,493 Avg Close $61.59 Range $59.25 - $64.17

Q4 2013

Shares 18,470 Value ($000) $1,474 Avg Close $58.52 Range $53.88 - $61.27

Q3 2013

Shares 18,499 Value ($000) $1,371 Avg Close $54.19 Range $50.94 - $58.77

Q2 2013

Shares 18,698 Value ($000) $1,368 Avg Close $59.51 Range $52.17 - $63.74

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	102,873	$18,061	$180.30	$169.12 - $192.63
Q3 2025	113,702	$21,867	$204.56	$185.10 - $230.04
Q2 2025	113,072	$24,991	$210.37	$190.80 - $225.87
Q1 2025	113,278	$24,649	$189.52	$166.66 - $212.16
Q4 2024	104,060	$19,086	$198.35	$171.45 - $222.90
Q3 2023	105,930	$17,420	$167.65	$145.17 - $184.31
Q2 2023	105,198	$20,402	$178.08	$162.53 - $192.95
Q1 2023	113,883	$23,271	$189.59	$171.12 - $212.87
Q4 2022	105,244	$22,297	$186.71	$159.82 - $204.49
Q3 2022	101,030	$21,691	$228.80	$188.24 - $251.54
Q2 2022	95,124	$24,313	$222.20	$196.54 - $240.37
Q1 2022	81,431	$20,457	$214.86	$193.72 - $257.60
Q4 2021	79,540	$23,265	$239.48	$222.02 - $259.23
Q3 2021	78,909	$20,943	$248.67	$232.43 - $264.88
Q2 2021	76,625	$20,699	$221.28	$204.65 - $239.67
Q1 2021	74,259	$17,752	$192.28	$170.54 - $209.67
Q4 2020	93,050	$20,886	$199.71	$184.97 - $217.31
Q3 2020	73,290	$17,716	$216.72	$200.88 - $232.60
Q2 2020	55,423	$14,329	$210.56	$171.21 - $229.12
Q1 2020	51,368	$11,185	$197.22	$147.72 - $219.16
Q4 2019	51,760	$11,895	$183.82	$171.19 - $195.06
Q3 2019	26,623	$5,887	$183.38	$167.57 - $203.29
Q2 2019	27,840	$5,692	$168.17	$157.69 - $183.80
Q1 2019	27,890	$5,496	$146.03	$128.16 - $164.30
Q4 2018	28,674	$4,536	$129.50	$116.26 - $139.59
Q3 2018	28,170	$4,093	$120.79	$114.07 - $125.11
Q2 2018	28,324	$4,084	$113.83	$109.35 - $119.75
Q1 2018	28,611	$4,158	$114.77	$106.21 - $122.30
Q4 2017	28,811	$4,110	$115.75	$109.97 - $125.87
Q3 2017	21,809	$2,981	$112.31	$105.52 - $119.95
Q2 2017	21,858	$2,892	$102.88	$96.18 - $110.06
Q1 2017	21,381	$2,599	$87.85	$81.86 - $97.31
Q4 2016	21,508	$2,273	$86.33	$79.20 - $93.79
Q3 2016	22,086	$2,503	$90.38	$85.02 - $93.47
Q2 2016	21,980	$2,497	$83.75	$79.73 - $89.81
Q1 2016	21,955	$2,248	$73.16	$65.02 - $80.56
Q4 2015	21,817	$2,115	$75.94	$67.91 - $81.06
Q3 2015	21,705	$1,910	$72.97	$67.60 - $78.65
Q2 2015	20,050	$1,870	$72.97	$70.92 - $75.72
Q1 2015	19,760	$1,860	$74.63	$71.55 - $78.20
Q4 2014	19,755	$1,953	$75.17	$68.98 - $81.29
Q3 2014	20,434	$1,913	$72.53	$67.84 - $76.11
Q2 2014	17,835	$1,605	$65.68	$60.55 - $68.85
Q1 2014	18,234	$1,493	$61.59	$59.25 - $64.17
Q4 2013	18,470	$1,474	$58.52	$53.88 - $61.27
Q3 2013	18,499	$1,371	$54.19	$50.94 - $58.77
Q2 2013	18,698	$1,368	$59.51	$52.17 - $63.74