AMERICAN TOWER CORP NEW

Ticker: AMT CUSIP: 03027X100 Class: COM

CARDEROCK CAPITAL MANAGEMENT INC's Holding History (CIK: 0001168889)

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

Q4 2023

Shares 14,180 Value ($000) $3,061 Avg Close $175.15 Range $141.88 - $204.01

Q3 2023

Shares 11,715 Value ($000) $1,927 Avg Close $167.65 Range $145.17 - $184.31

Q2 2023

Shares 17,322 Value ($000) $3 Avg Close $178.08 Range $162.53 - $192.95

Q1 2023

Shares 17,260 Value ($000) $3,527 Avg Close $189.59 Range $171.12 - $212.87

Q4 2022

Shares 14,117 Value ($000) $3 Avg Close $186.71 Range $159.82 - $204.49

Q3 2022

Shares 14,187 Value ($000) $3,046 Avg Close $228.80 Range $188.24 - $251.54

Q2 2022

Shares 18,822 Value ($000) $4,811 Avg Close $222.20 Range $196.54 - $240.37

Q1 2022

Shares 20,562 Value ($000) $5,166 Avg Close $214.86 Range $193.72 - $257.60

Q4 2021

Shares 20,740 Value ($000) $6,066 Avg Close $239.48 Range $222.02 - $259.23

Q3 2021

Shares 20,084 Value ($000) $5,330 Avg Close $248.67 Range $232.43 - $264.88

Q2 2021

Shares 20,041 Value ($000) $5,414 Avg Close $221.28 Range $204.65 - $239.67

Q1 2021

Shares 20,071 Value ($000) $4,798 Avg Close $192.28 Range $170.54 - $209.67

Q4 2020

Shares 20,270 Value ($000) $4,550 Avg Close $199.71 Range $184.97 - $217.31

Q3 2020

Shares 20,322 Value ($000) $4,912 Avg Close $216.72 Range $200.88 - $232.60

Q2 2020

Shares 20,858 Value ($000) $5,393 Avg Close $210.56 Range $171.21 - $229.12

Q1 2020

Shares 21,311 Value ($000) $4,640 Avg Close $197.22 Range $147.72 - $219.16

Q4 2019

Shares 21,382 Value ($000) $4,914 Avg Close $183.82 Range $171.19 - $195.06

Q3 2019

Shares 21,114 Value ($000) $4,669 Avg Close $183.38 Range $167.57 - $203.29

Q2 2019

Shares 21,275 Value ($000) $4,350 Avg Close $168.17 Range $157.69 - $183.80

Q1 2019

Shares 21,237 Value ($000) $4,185 Avg Close $146.03 Range $128.16 - $164.30

Q4 2018

Shares 5,286 Value ($000) $836 Avg Close $129.50 Range $116.26 - $139.59

Q3 2018

Shares 5,292 Value ($000) $769 Avg Close $120.79 Range $114.07 - $125.11

Q2 2018

Shares 5,221 Value ($000) $753 Avg Close $113.83 Range $109.35 - $119.75

Q1 2018

Shares 4,699 Value ($000) $683 Avg Close $114.77 Range $106.21 - $122.30

Q4 2017

Shares 4,816 Value ($000) $687 Avg Close $115.75 Range $109.97 - $125.87

Q3 2017

Shares 5,127 Value ($000) $701 Avg Close $112.31 Range $105.52 - $119.95

Q2 2017

Shares 4,794 Value ($000) $634 Avg Close $102.88 Range $96.18 - $110.06

Q1 2017

Shares 4,855 Value ($000) $590 Avg Close $87.85 Range $81.86 - $97.31

Q4 2016

Shares 4,610 Value ($000) $487 Avg Close $86.33 Range $79.20 - $93.79

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2023	14,180	$3,061	$175.15	$141.88 - $204.01
Q3 2023	11,715	$1,927	$167.65	$145.17 - $184.31
Q2 2023	17,322	$3	$178.08	$162.53 - $192.95
Q1 2023	17,260	$3,527	$189.59	$171.12 - $212.87
Q4 2022	14,117	$3	$186.71	$159.82 - $204.49
Q3 2022	14,187	$3,046	$228.80	$188.24 - $251.54
Q2 2022	18,822	$4,811	$222.20	$196.54 - $240.37
Q1 2022	20,562	$5,166	$214.86	$193.72 - $257.60
Q4 2021	20,740	$6,066	$239.48	$222.02 - $259.23
Q3 2021	20,084	$5,330	$248.67	$232.43 - $264.88
Q2 2021	20,041	$5,414	$221.28	$204.65 - $239.67
Q1 2021	20,071	$4,798	$192.28	$170.54 - $209.67
Q4 2020	20,270	$4,550	$199.71	$184.97 - $217.31
Q3 2020	20,322	$4,912	$216.72	$200.88 - $232.60
Q2 2020	20,858	$5,393	$210.56	$171.21 - $229.12
Q1 2020	21,311	$4,640	$197.22	$147.72 - $219.16
Q4 2019	21,382	$4,914	$183.82	$171.19 - $195.06
Q3 2019	21,114	$4,669	$183.38	$167.57 - $203.29
Q2 2019	21,275	$4,350	$168.17	$157.69 - $183.80
Q1 2019	21,237	$4,185	$146.03	$128.16 - $164.30
Q4 2018	5,286	$836	$129.50	$116.26 - $139.59
Q3 2018	5,292	$769	$120.79	$114.07 - $125.11
Q2 2018	5,221	$753	$113.83	$109.35 - $119.75
Q1 2018	4,699	$683	$114.77	$106.21 - $122.30
Q4 2017	4,816	$687	$115.75	$109.97 - $125.87
Q3 2017	5,127	$701	$112.31	$105.52 - $119.95
Q2 2017	4,794	$634	$102.88	$96.18 - $110.06
Q1 2017	4,855	$590	$87.85	$81.86 - $97.31
Q4 2016	4,610	$487	$86.33	$79.20 - $93.79