AMERICAN TOWER CORP NEW

Ticker: AMT CUSIP: 03027X100 Class: COM

OSBORNE PARTNERS CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001005607)

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

Q4 2025

Shares 1,300 Value ($000) $228 Avg Close $180.30 Range $169.12 - $192.63

Q3 2025

Shares 8,302 Value ($000) $1,597 Avg Close $204.56 Range $185.10 - $230.04

Q2 2025

Shares 8,420 Value ($000) $1,861 Avg Close $210.37 Range $190.80 - $225.87

Q1 2025

Shares 8,720 Value ($000) $1,897 Avg Close $189.52 Range $166.66 - $212.16

Q4 2024

Shares 8,720 Value ($000) $1,599 Avg Close $198.35 Range $171.45 - $222.90

Q3 2024

Shares 8,720 Value ($000) $2,028 Avg Close $210.79 Range $182.10 - $231.55

Q2 2024

Shares 8,720 Value ($000) $1,695 Avg Close $176.27 Range $160.72 - $190.06

Q1 2024

Shares 8,720 Value ($000) $1,723 Avg Close $186.13 Range $169.29 - $204.74

Q4 2023

Shares 8,954 Value ($000) $1,933 Avg Close $175.15 Range $141.88 - $204.01

Q3 2023

Shares 8,764 Value ($000) $1,441 Avg Close $167.65 Range $145.17 - $184.31

Q2 2023

Shares 8,729 Value ($000) $1,693 Avg Close $178.08 Range $162.53 - $192.95

Q1 2023

Shares 8,777 Value ($000) $1,793 Avg Close $189.59 Range $171.12 - $212.87

Q4 2022

Shares 8,729 Value ($000) $1,849 Avg Close $186.71 Range $159.82 - $204.49

Q3 2022

Shares 8,329 Value ($000) $1,788 Avg Close $228.80 Range $188.24 - $251.54

Q2 2022

Shares 8,329 Value ($000) $2,129 Avg Close $222.20 Range $196.54 - $240.37

Q1 2022

Shares 1,335 Value ($000) $335 Avg Close $214.86 Range $193.72 - $257.60

Q4 2021

Shares 1,329 Value ($000) $389 Avg Close $239.48 Range $222.02 - $259.23

Q3 2021

Shares 1,029 Value ($000) $273 Avg Close $248.67 Range $232.43 - $264.88

Q2 2021

Shares 1,029 Value ($000) $278 Avg Close $221.28 Range $204.65 - $239.67

Q1 2021

Shares 1,049 Value ($000) $251 Avg Close $192.28 Range $170.54 - $209.67

Q4 2020

Shares 8,320 Value ($000) $1,868 Avg Close $199.71 Range $184.97 - $217.31

Q3 2020

Shares 1,020 Value ($000) $247 Avg Close $216.72 Range $200.88 - $232.60

Q2 2020

Shares 1,020 Value ($000) $264 Avg Close $210.56 Range $171.21 - $229.12

Q1 2020

Shares 1,120 Value ($000) $244 Avg Close $197.22 Range $147.72 - $219.16

Q4 2019

Shares 1,120 Value ($000) $257 Avg Close $183.82 Range $171.19 - $195.06

Q3 2019

Shares 1,120 Value ($000) $248 Avg Close $183.38 Range $167.57 - $203.29

Q2 2019

Shares 1,120 Value ($000) $229 Avg Close $168.17 Range $157.69 - $183.80

Q1 2019

Shares 1,120 Value ($000) $221 Avg Close $146.03 Range $128.16 - $164.30

Q4 2018

Shares 8,420 Value ($000) $1,332 Avg Close $129.50 Range $116.26 - $139.59

Q3 2018

Shares 8,420 Value ($000) $1,223 Avg Close $120.79 Range $114.07 - $125.11

Q2 2018

Shares 8,453 Value ($000) $1,219 Avg Close $113.83 Range $109.35 - $119.75

Q1 2018

Shares 8,420 Value ($000) $1,224 Avg Close $114.77 Range $106.21 - $122.30

Q4 2017

Shares 8,420 Value ($000) $1,201 Avg Close $115.75 Range $109.97 - $125.87

Q3 2017

Shares 8,420 Value ($000) $1,151 Avg Close $112.31 Range $105.52 - $119.95

Q2 2017

Shares 8,420 Value ($000) $1,114 Avg Close $102.88 Range $96.18 - $110.06

Q1 2017

Shares 8,420 Value ($000) $1,023 Avg Close $87.85 Range $81.86 - $97.31

Q4 2016

Shares 8,420 Value ($000) $890 Avg Close $86.33 Range $79.20 - $93.79

Q3 2016

Shares 8,420 Value ($000) $954 Avg Close $90.38 Range $85.02 - $93.47

Q2 2016

Shares 6,420 Value ($000) $729 Avg Close $83.75 Range $79.73 - $89.81

Q1 2016

Shares 5,920 Value ($000) $606 Avg Close $73.16 Range $65.02 - $80.56

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,300	$228	$180.30	$169.12 - $192.63
Q3 2025	8,302	$1,597	$204.56	$185.10 - $230.04
Q2 2025	8,420	$1,861	$210.37	$190.80 - $225.87
Q1 2025	8,720	$1,897	$189.52	$166.66 - $212.16
Q4 2024	8,720	$1,599	$198.35	$171.45 - $222.90
Q3 2024	8,720	$2,028	$210.79	$182.10 - $231.55
Q2 2024	8,720	$1,695	$176.27	$160.72 - $190.06
Q1 2024	8,720	$1,723	$186.13	$169.29 - $204.74
Q4 2023	8,954	$1,933	$175.15	$141.88 - $204.01
Q3 2023	8,764	$1,441	$167.65	$145.17 - $184.31
Q2 2023	8,729	$1,693	$178.08	$162.53 - $192.95
Q1 2023	8,777	$1,793	$189.59	$171.12 - $212.87
Q4 2022	8,729	$1,849	$186.71	$159.82 - $204.49
Q3 2022	8,329	$1,788	$228.80	$188.24 - $251.54
Q2 2022	8,329	$2,129	$222.20	$196.54 - $240.37
Q1 2022	1,335	$335	$214.86	$193.72 - $257.60
Q4 2021	1,329	$389	$239.48	$222.02 - $259.23
Q3 2021	1,029	$273	$248.67	$232.43 - $264.88
Q2 2021	1,029	$278	$221.28	$204.65 - $239.67
Q1 2021	1,049	$251	$192.28	$170.54 - $209.67
Q4 2020	8,320	$1,868	$199.71	$184.97 - $217.31
Q3 2020	1,020	$247	$216.72	$200.88 - $232.60
Q2 2020	1,020	$264	$210.56	$171.21 - $229.12
Q1 2020	1,120	$244	$197.22	$147.72 - $219.16
Q4 2019	1,120	$257	$183.82	$171.19 - $195.06
Q3 2019	1,120	$248	$183.38	$167.57 - $203.29
Q2 2019	1,120	$229	$168.17	$157.69 - $183.80
Q1 2019	1,120	$221	$146.03	$128.16 - $164.30
Q4 2018	8,420	$1,332	$129.50	$116.26 - $139.59
Q3 2018	8,420	$1,223	$120.79	$114.07 - $125.11
Q2 2018	8,453	$1,219	$113.83	$109.35 - $119.75
Q1 2018	8,420	$1,224	$114.77	$106.21 - $122.30
Q4 2017	8,420	$1,201	$115.75	$109.97 - $125.87
Q3 2017	8,420	$1,151	$112.31	$105.52 - $119.95
Q2 2017	8,420	$1,114	$102.88	$96.18 - $110.06
Q1 2017	8,420	$1,023	$87.85	$81.86 - $97.31
Q4 2016	8,420	$890	$86.33	$79.20 - $93.79
Q3 2016	8,420	$954	$90.38	$85.02 - $93.47
Q2 2016	6,420	$729	$83.75	$79.73 - $89.81
Q1 2016	5,920	$606	$73.16	$65.02 - $80.56