AMERICAN TOWER CORP NEW

Ticker: AMT CUSIP: 03027X100 Class: COM

APPLETON PARTNERS INC/MA's Holding History (CIK: 0001055290)

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

Q4 2025

Shares 20,804 Value ($000) $4 Avg Close $180.30 Range $169.12 - $192.63

Q3 2025

Shares 21,626 Value ($000) $4 Avg Close $204.56 Range $185.10 - $230.04

Q2 2025

Shares 21,647 Value ($000) $5 Avg Close $210.37 Range $190.80 - $225.87

Q1 2025

Shares 22,634 Value ($000) $5 Avg Close $189.52 Range $166.66 - $212.16

Q4 2024

Shares 24,593 Value ($000) $5 Avg Close $198.35 Range $171.45 - $222.90

Q3 2024

Shares 24,720 Value ($000) $6 Avg Close $210.79 Range $182.10 - $231.55

Q2 2024

Shares 25,522 Value ($000) $5 Avg Close $176.27 Range $160.72 - $190.06

Q1 2024

Shares 26,275 Value ($000) $5 Avg Close $186.13 Range $169.29 - $204.74

Q4 2023

Shares 26,746 Value ($000) $6 Avg Close $175.15 Range $141.88 - $204.01

Q3 2023

Shares 32,276 Value ($000) $5 Avg Close $167.65 Range $145.17 - $184.31

Q2 2023

Shares 58,777 Value ($000) $11 Avg Close $178.08 Range $162.53 - $192.95

Q1 2023

Shares 61,853 Value ($000) $13 Avg Close $189.59 Range $171.12 - $212.87

Q4 2022

Shares 62,758 Value ($000) $13 Avg Close $186.71 Range $159.82 - $204.49

Q3 2022

Shares 62,379 Value ($000) $13,393 Avg Close $228.80 Range $188.24 - $251.54

Q2 2022

Shares 62,962 Value ($000) $16,092 Avg Close $222.20 Range $196.54 - $240.37

Q1 2022

Shares 62,268 Value ($000) $15,643 Avg Close $214.86 Range $193.72 - $257.60

Q4 2021

Shares 63,258 Value ($000) $18,503 Avg Close $239.48 Range $222.02 - $259.23

Q3 2021

Shares 62,366 Value ($000) $16,553 Avg Close $248.67 Range $232.43 - $264.88

Q2 2021

Shares 62,633 Value ($000) $16,920 Avg Close $221.28 Range $204.65 - $239.67

Q1 2021

Shares 63,499 Value ($000) $15,180 Avg Close $192.28 Range $170.54 - $209.67

Q4 2020

Shares 62,762 Value ($000) $14,088 Avg Close $199.71 Range $184.97 - $217.31

Q3 2020

Shares 62,401 Value ($000) $15,084 Avg Close $216.72 Range $200.88 - $232.60

Q2 2020

Shares 61,910 Value ($000) $16,006 Avg Close $210.56 Range $171.21 - $229.12

Q1 2020

Shares 62,855 Value ($000) $13,687 Avg Close $197.22 Range $147.72 - $219.16

Q4 2019

Shares 63,409 Value ($000) $14,573 Avg Close $183.82 Range $171.19 - $195.06

Q3 2019

Shares 66,361 Value ($000) $14,674 Avg Close $183.38 Range $167.57 - $203.29

Q2 2019

Shares 65,630 Value ($000) $13,418 Avg Close $168.17 Range $157.69 - $183.80

Q1 2019

Shares 65,871 Value ($000) $12,981 Avg Close $146.03 Range $128.16 - $164.30

Q4 2018

Shares 66,459 Value ($000) $10,513 Avg Close $129.50 Range $116.26 - $139.59

Q3 2018

Shares 65,875 Value ($000) $9,572 Avg Close $120.79 Range $114.07 - $125.11

Q2 2018

Shares 65,505 Value ($000) $9,444 Avg Close $113.83 Range $109.35 - $119.75

Q1 2018

Shares 65,695 Value ($000) $9,548 Avg Close $114.77 Range $106.21 - $122.30

Q4 2017

Shares 65,264 Value ($000) $9,311 Avg Close $115.75 Range $109.97 - $125.87

Q3 2017

Shares 64,814 Value ($000) $8,859 Avg Close $112.31 Range $105.52 - $119.95

Q2 2017

Shares 69,703 Value ($000) $9,223 Avg Close $102.88 Range $96.18 - $110.06

Q1 2017

Shares 66,855 Value ($000) $8,126 Avg Close $87.85 Range $81.86 - $97.31

Q4 2016

Shares 78,805 Value ($000) $8,328 Avg Close $86.33 Range $79.20 - $93.79

Q3 2016

Shares 83,824 Value ($000) $9,500 Avg Close $90.38 Range $85.02 - $93.47

Q2 2016

Shares 80,031 Value ($000) $9,092 Avg Close $83.75 Range $79.73 - $89.81

Q1 2016

Shares 80,602 Value ($000) $8,251 Avg Close $73.16 Range $65.02 - $80.56

Q4 2015

Shares 80,117 Value ($000) $7,767 Avg Close $75.94 Range $67.91 - $81.06

Q3 2015

Shares 74,194 Value ($000) $6,528 Avg Close $72.97 Range $67.60 - $78.65

Q2 2015

Shares 74,759 Value ($000) $6,974 Avg Close $72.97 Range $70.92 - $75.72

Q1 2015

Shares 75,454 Value ($000) $7,104 Avg Close $74.63 Range $71.55 - $78.20

Q4 2014

Shares 77,605 Value ($000) $7,671 Avg Close $75.17 Range $68.98 - $81.29

Q3 2014

Shares 78,935 Value ($000) $7,391 Avg Close $72.53 Range $67.84 - $76.11

Q2 2014

Shares 80,801 Value ($000) $7,270 Avg Close $65.68 Range $60.55 - $68.85

Q1 2014

Shares 82,546 Value ($000) $6,758 Avg Close $61.59 Range $59.25 - $64.17

Q4 2013

Shares 84,709 Value ($000) $6,761 Avg Close $58.52 Range $53.88 - $61.27

Q3 2013

Shares 84,917 Value ($000) $6,295 Avg Close $54.19 Range $50.94 - $58.77

Q2 2013

Shares 84,567 Value ($000) $6,187,767 Avg Close $59.51 Range $52.17 - $63.74

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	20,804	$4	$180.30	$169.12 - $192.63
Q3 2025	21,626	$4	$204.56	$185.10 - $230.04
Q2 2025	21,647	$5	$210.37	$190.80 - $225.87
Q1 2025	22,634	$5	$189.52	$166.66 - $212.16
Q4 2024	24,593	$5	$198.35	$171.45 - $222.90
Q3 2024	24,720	$6	$210.79	$182.10 - $231.55
Q2 2024	25,522	$5	$176.27	$160.72 - $190.06
Q1 2024	26,275	$5	$186.13	$169.29 - $204.74
Q4 2023	26,746	$6	$175.15	$141.88 - $204.01
Q3 2023	32,276	$5	$167.65	$145.17 - $184.31
Q2 2023	58,777	$11	$178.08	$162.53 - $192.95
Q1 2023	61,853	$13	$189.59	$171.12 - $212.87
Q4 2022	62,758	$13	$186.71	$159.82 - $204.49
Q3 2022	62,379	$13,393	$228.80	$188.24 - $251.54
Q2 2022	62,962	$16,092	$222.20	$196.54 - $240.37
Q1 2022	62,268	$15,643	$214.86	$193.72 - $257.60
Q4 2021	63,258	$18,503	$239.48	$222.02 - $259.23
Q3 2021	62,366	$16,553	$248.67	$232.43 - $264.88
Q2 2021	62,633	$16,920	$221.28	$204.65 - $239.67
Q1 2021	63,499	$15,180	$192.28	$170.54 - $209.67
Q4 2020	62,762	$14,088	$199.71	$184.97 - $217.31
Q3 2020	62,401	$15,084	$216.72	$200.88 - $232.60
Q2 2020	61,910	$16,006	$210.56	$171.21 - $229.12
Q1 2020	62,855	$13,687	$197.22	$147.72 - $219.16
Q4 2019	63,409	$14,573	$183.82	$171.19 - $195.06
Q3 2019	66,361	$14,674	$183.38	$167.57 - $203.29
Q2 2019	65,630	$13,418	$168.17	$157.69 - $183.80
Q1 2019	65,871	$12,981	$146.03	$128.16 - $164.30
Q4 2018	66,459	$10,513	$129.50	$116.26 - $139.59
Q3 2018	65,875	$9,572	$120.79	$114.07 - $125.11
Q2 2018	65,505	$9,444	$113.83	$109.35 - $119.75
Q1 2018	65,695	$9,548	$114.77	$106.21 - $122.30
Q4 2017	65,264	$9,311	$115.75	$109.97 - $125.87
Q3 2017	64,814	$8,859	$112.31	$105.52 - $119.95
Q2 2017	69,703	$9,223	$102.88	$96.18 - $110.06
Q1 2017	66,855	$8,126	$87.85	$81.86 - $97.31
Q4 2016	78,805	$8,328	$86.33	$79.20 - $93.79
Q3 2016	83,824	$9,500	$90.38	$85.02 - $93.47
Q2 2016	80,031	$9,092	$83.75	$79.73 - $89.81
Q1 2016	80,602	$8,251	$73.16	$65.02 - $80.56
Q4 2015	80,117	$7,767	$75.94	$67.91 - $81.06
Q3 2015	74,194	$6,528	$72.97	$67.60 - $78.65
Q2 2015	74,759	$6,974	$72.97	$70.92 - $75.72
Q1 2015	75,454	$7,104	$74.63	$71.55 - $78.20
Q4 2014	77,605	$7,671	$75.17	$68.98 - $81.29
Q3 2014	78,935	$7,391	$72.53	$67.84 - $76.11
Q2 2014	80,801	$7,270	$65.68	$60.55 - $68.85
Q1 2014	82,546	$6,758	$61.59	$59.25 - $64.17
Q4 2013	84,709	$6,761	$58.52	$53.88 - $61.27
Q3 2013	84,917	$6,295	$54.19	$50.94 - $58.77
Q2 2013	84,567	$6,187,767	$59.51	$52.17 - $63.74