AMERICAN TOWER CORP NEW

Ticker: AMT CUSIP: 03027X100 Class: COM

FACTORY MUTUAL INSURANCE CO's Holding History (CIK: 0000887818)

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

Q4 2025

Shares 221,900 Value ($000) $38,959 Avg Close $180.30 Range $169.12 - $192.63

Q3 2025

Shares 227,700 Value ($000) $43,791 Avg Close $204.56 Range $185.10 - $230.04

Q2 2025

Shares 227,700 Value ($000) $50,326 Avg Close $210.37 Range $190.80 - $225.87

Q1 2025

Shares 227,700 Value ($000) $49,548 Avg Close $189.52 Range $166.66 - $212.16

Q4 2024

Shares 227,700 Value ($000) $41,762 Avg Close $198.35 Range $171.45 - $222.90

Q3 2024

Shares 181,500 Value ($000) $42,210 Avg Close $210.79 Range $182.10 - $231.55

Q2 2024

Shares 163,400 Value ($000) $31,762 Avg Close $176.27 Range $160.72 - $190.06

Q1 2024

Shares 166,100 Value ($000) $32,820 Avg Close $186.13 Range $169.29 - $204.74

Q4 2023

Shares 171,800 Value ($000) $37,088 Avg Close $175.15 Range $141.88 - $204.01

Q3 2023

Shares 171,800 Value ($000) $28,253 Avg Close $167.65 Range $145.17 - $184.31

Q2 2023

Shares 145,800 Value ($000) $28,276 Avg Close $178.08 Range $162.53 - $192.95

Q1 2023

Shares 145,800 Value ($000) $29,793 Avg Close $189.59 Range $171.12 - $212.87

Q4 2022

Shares 153,500 Value ($000) $32,521 Avg Close $186.71 Range $159.82 - $204.49

Q3 2022

Shares 153,500 Value ($000) $32,957 Avg Close $228.80 Range $188.24 - $251.54

Q2 2022

Shares 156,100 Value ($000) $39,897 Avg Close $222.20 Range $196.54 - $240.37

Q1 2022

Shares 162,700 Value ($000) $40,873 Avg Close $214.86 Range $193.72 - $257.60

Q4 2021

Shares 169,200 Value ($000) $40,825 Avg Close $239.48 Range $222.02 - $259.23

Q3 2021

Shares 207,650 Value ($000) $55,112 Avg Close $248.67 Range $232.43 - $264.88

Q2 2021

Shares 210,750 Value ($000) $56,933 Avg Close $221.28 Range $204.65 - $239.67

Q1 2021

Shares 218,238 Value ($000) $52,172 Avg Close $192.28 Range $170.54 - $209.67

Q4 2020

Shares 170,600 Value ($000) $38,294 Avg Close $199.71 Range $184.97 - $217.31

Q3 2020

Shares 185,300 Value ($000) $44,792 Avg Close $216.72 Range $200.88 - $232.60

Q2 2020

Shares 185,300 Value ($000) $47,907 Avg Close $210.56 Range $171.21 - $229.12

Q1 2020

Shares 191,100 Value ($000) $41,612 Avg Close $197.22 Range $147.72 - $219.16

Q4 2019

Shares 192,800 Value ($000) $44,310 Avg Close $183.82 Range $171.19 - $195.06

Q3 2019

Shares 192,800 Value ($000) $42,634 Avg Close $183.38 Range $167.57 - $203.29

Q2 2019

Shares 339,800 Value ($000) $69,472 Avg Close $168.17 Range $157.69 - $183.80

Q1 2019

Shares 337,600 Value ($000) $65,549 Avg Close $146.03 Range $128.16 - $164.30

Q4 2018

Shares 372,300 Value ($000) $58,895 Avg Close $129.50 Range $116.26 - $139.59

Q3 2018

Shares 372,300 Value ($000) $54,095 Avg Close $120.79 Range $114.07 - $125.11

Q2 2018

Shares 360,100 Value ($000) $51,916 Avg Close $113.83 Range $109.35 - $119.75

Q1 2018

Shares 353,800 Value ($000) $51,421 Avg Close $114.77 Range $106.21 - $122.30

Q4 2017

Shares 353,800 Value ($000) $50,476 Avg Close $115.75 Range $109.97 - $125.87

Q3 2017

Shares 353,800 Value ($000) $48,357 Avg Close $112.31 Range $105.52 - $119.95

Q2 2017

Shares 401,800 Value ($000) $53,166 Avg Close $102.88 Range $96.18 - $110.06

Q1 2017

Shares 425,800 Value ($000) $51,752 Avg Close $87.85 Range $81.86 - $97.31

Q4 2016

Shares 425,800 Value ($000) $44,943 Avg Close $86.33 Range $79.20 - $93.79

Q3 2016

Shares 370,800 Value ($000) $42,023 Avg Close $90.38 Range $85.02 - $93.47

Q2 2016

Shares 370,800 Value ($000) $42,127 Avg Close $83.75 Range $79.73 - $89.81

Q1 2016

Shares 370,800 Value ($000) $37,959 Avg Close $73.16 Range $65.02 - $80.56

Q4 2015

Shares 364,800 Value ($000) $35,367 Avg Close $75.94 Range $67.91 - $81.06

Q3 2015

Shares 364,800 Value ($000) $32,095 Avg Close $72.97 Range $67.60 - $78.65

Q2 2015

Shares 364,800 Value ($000) $34,032 Avg Close $72.97 Range $70.92 - $75.72

Q1 2015

Shares 364,800 Value ($000) $34,345 Avg Close $74.63 Range $71.55 - $78.20

Q4 2014

Shares 364,800 Value ($000) $36,060 Avg Close $75.17 Range $68.98 - $81.29

Q3 2014

Shares 419,800 Value ($000) $39,306 Avg Close $72.53 Range $67.84 - $76.11

Q2 2014

Shares 562,900 Value ($000) $50,650 Avg Close $65.68 Range $60.55 - $68.85

Q1 2014

Shares 747,900 Value ($000) $61,231 Avg Close $61.59 Range $59.25 - $64.17

Q4 2013

Shares 724,900 Value ($000) $57,862 Avg Close $58.52 Range $53.88 - $61.27

Q3 2013

Shares 649,900 Value ($000) $48,177 Avg Close $54.19 Range $50.94 - $58.77

Q2 2013

Shares 669,900 Value ($000) $49,017 Avg Close $59.51 Range $52.17 - $63.74

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	221,900	$38,959	$180.30	$169.12 - $192.63
Q3 2025	227,700	$43,791	$204.56	$185.10 - $230.04
Q2 2025	227,700	$50,326	$210.37	$190.80 - $225.87
Q1 2025	227,700	$49,548	$189.52	$166.66 - $212.16
Q4 2024	227,700	$41,762	$198.35	$171.45 - $222.90
Q3 2024	181,500	$42,210	$210.79	$182.10 - $231.55
Q2 2024	163,400	$31,762	$176.27	$160.72 - $190.06
Q1 2024	166,100	$32,820	$186.13	$169.29 - $204.74
Q4 2023	171,800	$37,088	$175.15	$141.88 - $204.01
Q3 2023	171,800	$28,253	$167.65	$145.17 - $184.31
Q2 2023	145,800	$28,276	$178.08	$162.53 - $192.95
Q1 2023	145,800	$29,793	$189.59	$171.12 - $212.87
Q4 2022	153,500	$32,521	$186.71	$159.82 - $204.49
Q3 2022	153,500	$32,957	$228.80	$188.24 - $251.54
Q2 2022	156,100	$39,897	$222.20	$196.54 - $240.37
Q1 2022	162,700	$40,873	$214.86	$193.72 - $257.60
Q4 2021	169,200	$40,825	$239.48	$222.02 - $259.23
Q3 2021	207,650	$55,112	$248.67	$232.43 - $264.88
Q2 2021	210,750	$56,933	$221.28	$204.65 - $239.67
Q1 2021	218,238	$52,172	$192.28	$170.54 - $209.67
Q4 2020	170,600	$38,294	$199.71	$184.97 - $217.31
Q3 2020	185,300	$44,792	$216.72	$200.88 - $232.60
Q2 2020	185,300	$47,907	$210.56	$171.21 - $229.12
Q1 2020	191,100	$41,612	$197.22	$147.72 - $219.16
Q4 2019	192,800	$44,310	$183.82	$171.19 - $195.06
Q3 2019	192,800	$42,634	$183.38	$167.57 - $203.29
Q2 2019	339,800	$69,472	$168.17	$157.69 - $183.80
Q1 2019	337,600	$65,549	$146.03	$128.16 - $164.30
Q4 2018	372,300	$58,895	$129.50	$116.26 - $139.59
Q3 2018	372,300	$54,095	$120.79	$114.07 - $125.11
Q2 2018	360,100	$51,916	$113.83	$109.35 - $119.75
Q1 2018	353,800	$51,421	$114.77	$106.21 - $122.30
Q4 2017	353,800	$50,476	$115.75	$109.97 - $125.87
Q3 2017	353,800	$48,357	$112.31	$105.52 - $119.95
Q2 2017	401,800	$53,166	$102.88	$96.18 - $110.06
Q1 2017	425,800	$51,752	$87.85	$81.86 - $97.31
Q4 2016	425,800	$44,943	$86.33	$79.20 - $93.79
Q3 2016	370,800	$42,023	$90.38	$85.02 - $93.47
Q2 2016	370,800	$42,127	$83.75	$79.73 - $89.81
Q1 2016	370,800	$37,959	$73.16	$65.02 - $80.56
Q4 2015	364,800	$35,367	$75.94	$67.91 - $81.06
Q3 2015	364,800	$32,095	$72.97	$67.60 - $78.65
Q2 2015	364,800	$34,032	$72.97	$70.92 - $75.72
Q1 2015	364,800	$34,345	$74.63	$71.55 - $78.20
Q4 2014	364,800	$36,060	$75.17	$68.98 - $81.29
Q3 2014	419,800	$39,306	$72.53	$67.84 - $76.11
Q2 2014	562,900	$50,650	$65.68	$60.55 - $68.85
Q1 2014	747,900	$61,231	$61.59	$59.25 - $64.17
Q4 2013	724,900	$57,862	$58.52	$53.88 - $61.27
Q3 2013	649,900	$48,177	$54.19	$50.94 - $58.77
Q2 2013	669,900	$49,017	$59.51	$52.17 - $63.74