Capital World Investors

Position in AMT — American Tower Corp /Ma/

CIK 1422849 LOS ANGELES, CA

Back to AMT Full portfolio

Position in AMT

as of Mar 31, 2026 · filed May 13, 2026 Compact

Position Value

$978,164,111

+$237,067,165 QoQ

Shares Held

5,667,888

+34.3% QoQ

Ownership

1.22%

of shares outstanding

% of Portfolio

0.14%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

24 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in AMT Over Time

Shares Held

Position Value (USD)

Position in REIT - Specialty

Real Estate · as of Mar 31, 2026

Capital World Investors holds $1,543,073,515 across 4 REIT - Specialty names. AMT ranks #1 (63.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	AMT	American Tower Corp /Ma/ This page	5,667,888	$978,164,111
2	CCI	Crown Castle Inc.	3,195,428	$259,820,250
3	IRM	Iron Mountain Inc	1,867,169	$190,712,641
4	LAMR	Lamar Advertising Co/New	903,020	$114,376,513

All Filings in AMT

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24 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$978,164,111	5,667,888	+34.3%	Shares	Defined	2026-05-13
2025-12-31	$741,096,946	4,221,091	+0.3%	Shares	Defined	2026-02-11
2025-09-30	$809,418,914	4,208,709	+4.2%	Shares	Defined	2025-11-13
2025-06-30	$892,974,949	4,040,245	+0.2%	Shares	Defined	2025-08-13
2025-03-31	$877,263,756	4,031,543	-18.1%	Shares	Defined	2025-05-12
2024-12-31	$902,395,541	4,920,100	+160.6%	Shares	Defined	2025-02-13
2024-09-30	$439,095,373	1,888,095	-6.2%	Shares	Defined	2024-11-13
2024-06-30	$391,261,087	2,012,867	+110.3%	Shares	Defined	2024-08-13
2024-03-31	$189,121,490	957,141	+8.6%	Shares	Defined	2024-05-14
2023-12-31	$190,317,865	881,591	-38.6%	Shares	Defined	2024-02-13
2023-09-30	$236,090,504	1,435,637	-42.0%	Shares	Defined	2023-11-13
2023-06-30	$479,665,208	2,473,266	-15.3%	Shares	Defined	2023-08-11
2023-03-31	$596,923,933	2,921,229	+7.8%	Shares	Defined	2023-05-15
2022-12-31	$574,094,202	2,709,781	+58.9%	Shares	Defined	2023-02-14
2022-09-30	$366,212,072	1,705,692	-0.0%	Shares	Defined	2022-11-14
2022-06-30	$436,088,169	1,706,202	+7.7%	Shares	Defined	2022-08-15
2022-03-31	$398,084,216	1,584,604	-65.5%	Shares	Defined	2022-05-19
2021-09-30	$1,219,372,101	4,594,296	-14.3%	Shares	Defined	2021-11-15
2021-06-30	$1,448,033,062	5,360,306	-5.3%	Shares	Defined	2021-08-16
2021-03-31	$1,353,365,037	5,661,194	-33.5%	Shares	Defined	2021-05-14
2020-12-31	$1,911,357,705	8,515,360	-8.0%	Shares	Defined	2021-02-12
2020-09-30	$2,238,106,759	9,258,705	-4.9%	Shares	Defined	2020-11-13
2020-06-30	$2,517,147,249	9,736,007	-11.4%	Shares	Defined	2020-08-14
2020-03-31	$2,393,972,460	10,994,133	—	Shares	Defined	2020-05-15
No filing history on record for this holder in this stock.