AMERICAN TOWER CORP NEW

Ticker: AMT CUSIP: 03027X100 Class: COM

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q4 2025

Shares 242,575 Value ($000) $42,589 Avg Close $180.30 Range $169.12 - $192.63

Q3 2025

Shares 251,789 Value ($000) $48,424 Avg Close $204.56 Range $185.10 - $230.04

Q2 2025

Shares 256,523 Value ($000) $56,697 Avg Close $210.37 Range $190.80 - $225.87

Q1 2025

Shares 262,581 Value ($000) $57,138 Avg Close $189.52 Range $166.66 - $212.16

Q4 2024

Shares 262,728 Value ($000) $48,187 Avg Close $198.35 Range $171.45 - $222.90

Q3 2024

Shares 283,642 Value ($000) $65,964 Avg Close $210.79 Range $182.10 - $231.55

Q2 2024

Shares 267,671 Value ($000) $52,030 Avg Close $176.27 Range $160.72 - $190.06

Q1 2024

Shares 252,014 Value ($000) $49,795 Avg Close $186.13 Range $169.29 - $204.74

Q4 2023

Shares 245,370 Value ($000) $52,970 Avg Close $175.15 Range $141.88 - $204.01

Q3 2023

Shares 247,974 Value ($000) $40,779 Avg Close $167.65 Range $145.17 - $184.31

Q2 2023

Shares 359,209 Value ($000) $69,665 Avg Close $178.08 Range $162.53 - $192.95

Q1 2023

Shares 377,676 Value ($000) $77,174 Avg Close $189.59 Range $171.12 - $212.87

Q4 2022

Shares 412,936 Value ($000) $87,485 Avg Close $186.71 Range $159.82 - $204.49

Q3 2022

Shares 466,966 Value ($000) $100,258 Avg Close $228.80 Range $188.24 - $251.54

Q2 2022

Shares 478,911 Value ($000) $122,405 Avg Close $222.20 Range $196.54 - $240.37

Q1 2022

Shares 457,580 Value ($000) $114,953 Avg Close $214.86 Range $193.72 - $257.60

Q4 2021

Shares 519,612 Value ($000) $151,986 Avg Close $239.48 Range $222.02 - $259.23

Q3 2021

Shares 586,420 Value ($000) $155,642 Avg Close $248.67 Range $232.43 - $264.88

Q2 2021

Shares 549,241 Value ($000) $148,372 Avg Close $221.28 Range $204.65 - $239.67

Q1 2021

Shares 504,116 Value ($000) $120,514 Avg Close $192.28 Range $170.54 - $209.67

Q4 2020

Shares 507,993 Value ($000) $114,024 Avg Close $199.71 Range $184.97 - $217.31

Q3 2020

Shares 570,489 Value ($000) $137,904 Avg Close $216.72 Range $200.88 - $232.60

Q2 2020

Shares 577,619 Value ($000) $149,338 Avg Close $210.56 Range $171.21 - $229.12

Q1 2020

Shares 619,464 Value ($000) $134,888 Avg Close $197.22 Range $147.72 - $219.16

Q4 2019

Shares 650,222 Value ($000) $149,434 Avg Close $183.82 Range $171.19 - $195.06

Q3 2019

Shares 662,926 Value ($000) $146,593 Avg Close $183.38 Range $167.57 - $203.29

Q2 2019

Shares 688,013 Value ($000) $140,664 Avg Close $168.17 Range $157.69 - $183.80

Q1 2019

Shares 679,810 Value ($000) $133,963 Avg Close $146.03 Range $128.16 - $164.30

Q4 2018

Shares 672,825 Value ($000) $106,434 Avg Close $129.50 Range $116.26 - $139.59

Q3 2018

Shares 609,376 Value ($000) $88,542 Avg Close $120.79 Range $114.07 - $125.11

Q2 2018

Shares 521,664 Value ($000) $75,208 Avg Close $113.83 Range $109.35 - $119.75

Q1 2018

Shares 523,048 Value ($000) $76,020 Avg Close $114.77 Range $106.21 - $122.30

Q4 2017

Shares 535,413 Value ($000) $76,387 Avg Close $115.75 Range $109.97 - $125.87

Q3 2017

Shares 537,736 Value ($000) $73,498 Avg Close $112.31 Range $105.52 - $119.95

Q2 2017

Shares 516,244 Value ($000) $68,309 Avg Close $102.88 Range $96.18 - $110.06

Q1 2017

Shares 423,289 Value ($000) $51,447 Avg Close $87.85 Range $81.86 - $97.31

Q4 2016

Shares 369,042 Value ($000) $39,000 Avg Close $86.33 Range $79.20 - $93.79

Q3 2016

Shares 410,108 Value ($000) $46,478 Avg Close $90.38 Range $85.02 - $93.47

Q2 2016

Shares 418,808 Value ($000) $47,581 Avg Close $83.75 Range $79.73 - $89.81

Q1 2016

Shares 439,228 Value ($000) $44,964 Avg Close $73.16 Range $65.02 - $80.56

Q4 2015

Shares 451,368 Value ($000) $43,760 Avg Close $75.94 Range $67.91 - $81.06

Q3 2015

Shares 454,928 Value ($000) $40,025 Avg Close $72.97 Range $67.60 - $78.65

Q2 2015

Shares 463,348 Value ($000) $43,226 Avg Close $72.97 Range $70.92 - $75.72

Q1 2015

Shares 462,518 Value ($000) $43,546 Avg Close $74.63 Range $71.55 - $78.20

Q4 2014

Shares 442,478 Value ($000) $43,739 Avg Close $75.17 Range $68.98 - $81.29

Q3 2014

Shares 426,558 Value ($000) $39,939 Avg Close $72.53 Range $67.84 - $76.11

Q2 2014

Shares 422,908 Value ($000) $38,053 Avg Close $65.68 Range $60.55 - $68.85

Q1 2014

Shares 406,948 Value ($000) $33,317 Avg Close $61.59 Range $59.25 - $64.17

Q4 2013

Shares 406,648 Value ($000) $32,459 Avg Close $58.52 Range $53.88 - $61.27

Q3 2013

Shares 416,348 Value ($000) $30,864 Avg Close $54.19 Range $50.94 - $58.77

Q2 2013

Shares 439,098 Value ($000) $32,129 Avg Close $59.51 Range $52.17 - $63.74

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	242,575	$42,589	$180.30	$169.12 - $192.63
Q3 2025	251,789	$48,424	$204.56	$185.10 - $230.04
Q2 2025	256,523	$56,697	$210.37	$190.80 - $225.87
Q1 2025	262,581	$57,138	$189.52	$166.66 - $212.16
Q4 2024	262,728	$48,187	$198.35	$171.45 - $222.90
Q3 2024	283,642	$65,964	$210.79	$182.10 - $231.55
Q2 2024	267,671	$52,030	$176.27	$160.72 - $190.06
Q1 2024	252,014	$49,795	$186.13	$169.29 - $204.74
Q4 2023	245,370	$52,970	$175.15	$141.88 - $204.01
Q3 2023	247,974	$40,779	$167.65	$145.17 - $184.31
Q2 2023	359,209	$69,665	$178.08	$162.53 - $192.95
Q1 2023	377,676	$77,174	$189.59	$171.12 - $212.87
Q4 2022	412,936	$87,485	$186.71	$159.82 - $204.49
Q3 2022	466,966	$100,258	$228.80	$188.24 - $251.54
Q2 2022	478,911	$122,405	$222.20	$196.54 - $240.37
Q1 2022	457,580	$114,953	$214.86	$193.72 - $257.60
Q4 2021	519,612	$151,986	$239.48	$222.02 - $259.23
Q3 2021	586,420	$155,642	$248.67	$232.43 - $264.88
Q2 2021	549,241	$148,372	$221.28	$204.65 - $239.67
Q1 2021	504,116	$120,514	$192.28	$170.54 - $209.67
Q4 2020	507,993	$114,024	$199.71	$184.97 - $217.31
Q3 2020	570,489	$137,904	$216.72	$200.88 - $232.60
Q2 2020	577,619	$149,338	$210.56	$171.21 - $229.12
Q1 2020	619,464	$134,888	$197.22	$147.72 - $219.16
Q4 2019	650,222	$149,434	$183.82	$171.19 - $195.06
Q3 2019	662,926	$146,593	$183.38	$167.57 - $203.29
Q2 2019	688,013	$140,664	$168.17	$157.69 - $183.80
Q1 2019	679,810	$133,963	$146.03	$128.16 - $164.30
Q4 2018	672,825	$106,434	$129.50	$116.26 - $139.59
Q3 2018	609,376	$88,542	$120.79	$114.07 - $125.11
Q2 2018	521,664	$75,208	$113.83	$109.35 - $119.75
Q1 2018	523,048	$76,020	$114.77	$106.21 - $122.30
Q4 2017	535,413	$76,387	$115.75	$109.97 - $125.87
Q3 2017	537,736	$73,498	$112.31	$105.52 - $119.95
Q2 2017	516,244	$68,309	$102.88	$96.18 - $110.06
Q1 2017	423,289	$51,447	$87.85	$81.86 - $97.31
Q4 2016	369,042	$39,000	$86.33	$79.20 - $93.79
Q3 2016	410,108	$46,478	$90.38	$85.02 - $93.47
Q2 2016	418,808	$47,581	$83.75	$79.73 - $89.81
Q1 2016	439,228	$44,964	$73.16	$65.02 - $80.56
Q4 2015	451,368	$43,760	$75.94	$67.91 - $81.06
Q3 2015	454,928	$40,025	$72.97	$67.60 - $78.65
Q2 2015	463,348	$43,226	$72.97	$70.92 - $75.72
Q1 2015	462,518	$43,546	$74.63	$71.55 - $78.20
Q4 2014	442,478	$43,739	$75.17	$68.98 - $81.29
Q3 2014	426,558	$39,939	$72.53	$67.84 - $76.11
Q2 2014	422,908	$38,053	$65.68	$60.55 - $68.85
Q1 2014	406,948	$33,317	$61.59	$59.25 - $64.17
Q4 2013	406,648	$32,459	$58.52	$53.88 - $61.27
Q3 2013	416,348	$30,864	$54.19	$50.94 - $58.77
Q2 2013	439,098	$32,129	$59.51	$52.17 - $63.74