AMERICAN TOWER CORP NEW

Ticker: AMT CUSIP: 03027X100 Class: COM

GATEWAY INVESTMENT ADVISERS LLC's Holding History (CIK: 0001114618)

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

Q4 2025

Shares 38,457 Value ($000) $6,752 Avg Close $180.30 Range $169.12 - $192.63

Q3 2025

Shares 35,192 Value ($000) $6,768 Avg Close $204.56 Range $185.10 - $230.04

Q2 2025

Shares 30,262 Value ($000) $6,688 Avg Close $210.37 Range $190.80 - $225.87

Q1 2025

Shares 37,365 Value ($000) $8,131 Avg Close $189.52 Range $166.66 - $212.16

Q4 2024

Shares 39,241 Value ($000) $7,197 Avg Close $198.35 Range $171.45 - $222.90

Q3 2024

Shares 39,015 Value ($000) $9,073 Avg Close $210.79 Range $182.10 - $231.55

Q2 2024

Shares 43,345 Value ($000) $8,425 Avg Close $176.27 Range $160.72 - $190.06

Q1 2024

Shares 35,481 Value ($000) $7,011 Avg Close $186.13 Range $169.29 - $204.74

Q4 2023

Shares 35,751 Value ($000) $7,718 Avg Close $175.15 Range $141.88 - $204.01

Q3 2023

Shares 22,677 Value ($000) $3,729 Avg Close $167.65 Range $145.17 - $184.31

Q2 2023

Shares 38,662 Value ($000) $7,498 Avg Close $178.08 Range $162.53 - $192.95

Q1 2023

Shares 37,199 Value ($000) $7,601 Avg Close $189.59 Range $171.12 - $212.87

Q4 2022

Shares 146,939 Value ($000) $31,130 Avg Close $186.71 Range $159.82 - $204.49

Q3 2022

Shares 175,804 Value ($000) $37,745 Avg Close $228.80 Range $188.24 - $251.54

Q2 2022

Shares 191,426 Value ($000) $48,926 Avg Close $222.20 Range $196.54 - $240.37

Q1 2022

Shares 158,801 Value ($000) $39,894 Avg Close $214.86 Range $193.72 - $257.60

Q4 2021

Shares 158,984 Value ($000) $46,503 Avg Close $239.48 Range $222.02 - $259.23

Q3 2021

Shares 159,827 Value ($000) $42,420 Avg Close $248.67 Range $232.43 - $264.88

Q2 2021

Shares 160,023 Value ($000) $43,228 Avg Close $221.28 Range $204.65 - $239.67

Q1 2021

Shares 111,606 Value ($000) $26,680 Avg Close $192.28 Range $170.54 - $209.67

Q4 2020

Shares 183,884 Value ($000) $41,274 Avg Close $199.71 Range $184.97 - $217.31

Q3 2020

Shares 41,491 Value ($000) $10,030 Avg Close $216.72 Range $200.88 - $232.60

Q2 2020

Shares 6,373 Value ($000) $1,648 Avg Close $210.56 Range $171.21 - $229.12

Q1 2020

Shares 7,330 Value ($000) $1,596 Avg Close $197.22 Range $147.72 - $219.16

Q4 2019

Shares 7,173 Value ($000) $1,648 Avg Close $183.82 Range $171.19 - $195.06

Q3 2019

Shares 7,877 Value ($000) $1,742 Avg Close $183.38 Range $167.57 - $203.29

Q2 2019

Shares 20,267 Value ($000) $4,144 Avg Close $168.17 Range $157.69 - $183.80

Q1 2019

Shares 21,316 Value ($000) $4,201 Avg Close $146.03 Range $128.16 - $164.30

Q4 2018

Shares 22,464 Value ($000) $3,554 Avg Close $129.50 Range $116.26 - $139.59

Q3 2018

Shares 21,946 Value ($000) $3,189 Avg Close $120.79 Range $114.07 - $125.11

Q2 2018

Shares 22,228 Value ($000) $3,205 Avg Close $113.83 Range $109.35 - $119.75

Q1 2018

Shares 24,200 Value ($000) $3,517 Avg Close $114.77 Range $106.21 - $122.30

Q4 2017

Shares 25,495 Value ($000) $3,637 Avg Close $115.75 Range $109.97 - $125.87

Q3 2017

Shares 28,721 Value ($000) $3,926 Avg Close $112.31 Range $105.52 - $119.95

Q2 2017

Shares 29,520 Value ($000) $3,906 Avg Close $102.88 Range $96.18 - $110.06

Q1 2017

Shares 30,010 Value ($000) $3,647 Avg Close $87.85 Range $81.86 - $97.31

Q4 2016

Shares 32,848 Value ($000) $3,471 Avg Close $86.33 Range $79.20 - $93.79

Q3 2016

Shares 34,212 Value ($000) $3,877 Avg Close $90.38 Range $85.02 - $93.47

Q2 2016

Shares 34,425 Value ($000) $3,911 Avg Close $83.75 Range $79.73 - $89.81

Q1 2016

Shares 34,848 Value ($000) $3,567 Avg Close $73.16 Range $65.02 - $80.56

Q4 2015

Shares 48,916 Value ($000) $4,742 Avg Close $75.94 Range $67.91 - $81.06

Q3 2015

Shares 49,421 Value ($000) $4,348 Avg Close $72.97 Range $67.60 - $78.65

Q2 2015

Shares 51,540 Value ($000) $4,808 Avg Close $72.97 Range $70.92 - $75.72

Q1 2015

Shares 50,817 Value ($000) $4,784 Avg Close $74.63 Range $71.55 - $78.20

Q4 2014

Shares 50,282 Value ($000) $4,970 Avg Close $75.17 Range $68.98 - $81.29

Q3 2014

Shares 49,486 Value ($000) $4,633 Avg Close $72.53 Range $67.84 - $76.11

Q2 2014

Shares 48,849 Value ($000) $4,395 Avg Close $65.68 Range $60.55 - $68.85

Q1 2014

Shares 41,558 Value ($000) $3,402 Avg Close $61.59 Range $59.25 - $64.17

Q4 2013

Shares 42,202 Value ($000) $3,369 Avg Close $58.52 Range $53.88 - $61.27

Q3 2013

Shares 42,852 Value ($000) $3,177 Avg Close $54.19 Range $50.94 - $58.77

Q2 2013

Shares 40,188 Value ($000) $2,941 Avg Close $59.51 Range $52.17 - $63.74

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	38,457	$6,752	$180.30	$169.12 - $192.63
Q3 2025	35,192	$6,768	$204.56	$185.10 - $230.04
Q2 2025	30,262	$6,688	$210.37	$190.80 - $225.87
Q1 2025	37,365	$8,131	$189.52	$166.66 - $212.16
Q4 2024	39,241	$7,197	$198.35	$171.45 - $222.90
Q3 2024	39,015	$9,073	$210.79	$182.10 - $231.55
Q2 2024	43,345	$8,425	$176.27	$160.72 - $190.06
Q1 2024	35,481	$7,011	$186.13	$169.29 - $204.74
Q4 2023	35,751	$7,718	$175.15	$141.88 - $204.01
Q3 2023	22,677	$3,729	$167.65	$145.17 - $184.31
Q2 2023	38,662	$7,498	$178.08	$162.53 - $192.95
Q1 2023	37,199	$7,601	$189.59	$171.12 - $212.87
Q4 2022	146,939	$31,130	$186.71	$159.82 - $204.49
Q3 2022	175,804	$37,745	$228.80	$188.24 - $251.54
Q2 2022	191,426	$48,926	$222.20	$196.54 - $240.37
Q1 2022	158,801	$39,894	$214.86	$193.72 - $257.60
Q4 2021	158,984	$46,503	$239.48	$222.02 - $259.23
Q3 2021	159,827	$42,420	$248.67	$232.43 - $264.88
Q2 2021	160,023	$43,228	$221.28	$204.65 - $239.67
Q1 2021	111,606	$26,680	$192.28	$170.54 - $209.67
Q4 2020	183,884	$41,274	$199.71	$184.97 - $217.31
Q3 2020	41,491	$10,030	$216.72	$200.88 - $232.60
Q2 2020	6,373	$1,648	$210.56	$171.21 - $229.12
Q1 2020	7,330	$1,596	$197.22	$147.72 - $219.16
Q4 2019	7,173	$1,648	$183.82	$171.19 - $195.06
Q3 2019	7,877	$1,742	$183.38	$167.57 - $203.29
Q2 2019	20,267	$4,144	$168.17	$157.69 - $183.80
Q1 2019	21,316	$4,201	$146.03	$128.16 - $164.30
Q4 2018	22,464	$3,554	$129.50	$116.26 - $139.59
Q3 2018	21,946	$3,189	$120.79	$114.07 - $125.11
Q2 2018	22,228	$3,205	$113.83	$109.35 - $119.75
Q1 2018	24,200	$3,517	$114.77	$106.21 - $122.30
Q4 2017	25,495	$3,637	$115.75	$109.97 - $125.87
Q3 2017	28,721	$3,926	$112.31	$105.52 - $119.95
Q2 2017	29,520	$3,906	$102.88	$96.18 - $110.06
Q1 2017	30,010	$3,647	$87.85	$81.86 - $97.31
Q4 2016	32,848	$3,471	$86.33	$79.20 - $93.79
Q3 2016	34,212	$3,877	$90.38	$85.02 - $93.47
Q2 2016	34,425	$3,911	$83.75	$79.73 - $89.81
Q1 2016	34,848	$3,567	$73.16	$65.02 - $80.56
Q4 2015	48,916	$4,742	$75.94	$67.91 - $81.06
Q3 2015	49,421	$4,348	$72.97	$67.60 - $78.65
Q2 2015	51,540	$4,808	$72.97	$70.92 - $75.72
Q1 2015	50,817	$4,784	$74.63	$71.55 - $78.20
Q4 2014	50,282	$4,970	$75.17	$68.98 - $81.29
Q3 2014	49,486	$4,633	$72.53	$67.84 - $76.11
Q2 2014	48,849	$4,395	$65.68	$60.55 - $68.85
Q1 2014	41,558	$3,402	$61.59	$59.25 - $64.17
Q4 2013	42,202	$3,369	$58.52	$53.88 - $61.27
Q3 2013	42,852	$3,177	$54.19	$50.94 - $58.77
Q2 2013	40,188	$2,941	$59.51	$52.17 - $63.74