Form 13-F position report

AMERICAN TOWER CORP

Reported by Capital World Investors

AMT CUSIP 03027X100 Manager CIK 0001422849

Reported 5,667,888 shares, up 1,446,797 (34.3%) from the prior quarter.

Reported value 32.0%; share count 34.3% vs. the prior quarter.

Added
% of reported 13F value 0.13% This manager · Q1 2026
Shares 5,667,888 Quarter-end amount reported
Reported value $978,164,111 Fair value at quarter end
Consecutive quarters held 52 Through Q1 2026

Reported position value by quarter

Reported position value by quarter

Each bar is a Form 13-F quarter-end snapshot. It does not show trades made within the quarter.

Reported position value by quarter
Date Holding Value
2021-09-30 1219372000
2021-12-31 1090354000
2022-03-31 398084000
2022-06-30 436088000
2022-09-30 366212000
2022-12-31 574094203
2023-03-31 596923934
2023-06-30 479665208
2023-09-30 236090505
2023-12-31 190317865
2024-03-31 189121490
2024-06-30 391261087
2024-09-30 439095373
2024-12-31 902395541
2025-03-31 877263757
2025-06-30 892974950
2025-09-30 809418915
2025-12-31 741096947
2026-03-31 978164111
2026-06-30 1072183521

Quarterly position history

How this manager's reported quarter-end position changed over time.

20 quarters
Quarterly reported position history for AMERICAN TOWER CORP held by Capital World Investors.
Quarter Activity Shares Change % of reported 13F Reported value Filed Source filing
Q2 2026 Added 6,554,891 +887,003 (15.6%) 0.13% $1,072,183,521 2026-08-12
Q1 2026 Added 5,667,888 +1,446,797 (34.3%) 0.13% $978,164,111 2026-05-13
Q4 2025 Added 4,221,091 +12,382 (0.3%) 0.1% $741,096,947 2026-02-11
Q3 2025 Added 4,208,709 +168,464 (4.2%) 0.11% $809,418,915 2025-11-13
Q2 2025 Added 4,040,245 +8,702 (0.2%) 0.13% $892,974,950 2025-08-13
Q1 2025 Reduced 4,031,543 -888,557 (-18.1%) 0.14% $877,263,757 2025-05-12
Q4 2024 Added 4,920,100 +3,032,005 (160.6%) 0.14% $902,395,541 2025-02-13
Q3 2024 Reduced 1,888,095 -124,772 (-6.2%) 0.07% $439,095,373 2024-11-13
Q2 2024 Added 2,012,867 +1,055,726 (110.3%) 0.06% $391,261,087 2024-08-13
Q1 2024 Added 957,141 +75,550 (8.6%) 0.03% $189,121,490 2024-05-14
Q4 2023 Reduced 881,591 -554,046 (-38.6%) 0.03% $190,317,865 2024-02-13
Q3 2023 Reduced 1,435,637 -1,037,629 (-42.0%) 0.05% $236,090,505 2023-11-13
Q2 2023 Reduced 2,473,266 -447,963 (-15.3%) 0.09% $479,665,208 2023-08-11
Q1 2023 Added 2,921,229 +211,448 (7.8%) 0.12% $596,923,934 2023-05-15
Q4 2022 Added 2,709,781 +1,004,089 (58.9%) 0.12% $574,094,203 2023-02-14
Q3 2022 Reduced 1,705,692 -510 (0.0%) 0.08% $366,212,000 2022-11-14
Q2 2022 Added 1,706,202 +121,598 (7.7%) 0.09% $436,088,000 2022-08-15
Q1 2022 Reduced 1,584,604 -2,143,101 (-57.5%) 0.07% $398,084,000 2022-05-16
Q4 2021 Reduced 3,727,705 -866,591 (-18.9%) 0.17% $1,090,354,000 2022-02-14
Q3 2021 Reduced 4,594,296 -766,010 (-14.3%) 0.21% $1,219,372,000 2021-11-15
Five years are shown. A free account unlocks the complete reported history. Unlock full history

Who else reported the position

1913 managers reported AMERICAN TOWER CORP for Q1 2026.

Managers reporting AMERICAN TOWER CORP in Q1 2026.
Manager Activity Shares Change % of reported 13F Reported value Tenure
BlackRock Inc Added 44,954,137 +919,381 0.14% $7,758,184,902 7 qtrs
VANGUARD CAPITAL MANAGEMENT LLC New 30,362,380 +30,362,380 0.13% $5,239,939,541 1 qtr
VANGUARD PORTFOLIO MANAGEMENT LLC New 27,596,159 +27,596,159 0.25% $4,762,545,120 1 qtr
STATE STREET CORPORATION Added 21,434,609 +447,075 0.13% $3,699,184,821 52 qtrs
JPMorgan Chase & Co Added 15,128,367 +716,125 0.17% $2,577,269,004 52 qtrs
GEODE CAPITAL MANAGEMENT LLC Added 13,933,628 +434,593 0.15% $2,400,040,632 52 qtrs
COHEN & STEERS INC Added 12,619,866 +132,779 3.78% $2,177,938,000 52 qtrs
FMR LLC Reduced 11,317,048 -701,791 0.1% $1,953,096,205 52 qtrs
MORGAN STANLEY Reduced 9,583,923 -223,728 0.1% $1,653,994,186 52 qtrs
DEUTSCHE BANK AG Added 7,769,353 +860,052 0.44% $1,340,834,942 52 qtrs
Premium adds each manager's conviction percentile across reporting peers.
Filing details and methodology As reported
Report period
March 31, 2026
Filed
May 13, 2026
Filing type
13F-HR
Position type
COM

Voting authority reported

Sole
5,667,888
Shared
0
None
0

“None” means the manager reported no voting authority for those shares on non-routine matters. It does not disclose why and is not evidence of securities lending.

Form 13-F is a delayed quarter-end snapshot of disclosed long Section 13(f) securities. It can be filed up to 45 days after quarter end, excludes short positions and most non-U.S. securities, and does not reveal intra-quarter trading. For options, reported shares and value describe the underlying-share exposure; strike, expiry, premium, and written positions are not disclosed.