American Tower Corp /Ma/ (AMT) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

468,644,338Shares Outstanding

2,219,516Shares held by institutions

$428,566,344Value of institutional holdings

97.24%Institutional ownership %

11.87%Shares Changed QoQ

1,668No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Recent 13F filings as of December 2025 show that 1668 institutional investors hold a position in American Tower Corp /Ma/ (NYSE:AMT).

These investors collectively held 97.2% of the company's total shares outstanding in December 2025, up from 91.7% in September 2025.
On a quarter-over-quarter basis, institutional holdings shifted by 11.87%, with a year-over-year a decrease of 4.96% in the count of filers.
A review of institutional activity for American Tower shows 716 of 1668 filers increasing their positions, while 778 reduced their stake, and 174 remained unchanged.
Collectively, institutional investors increased their stake in American Tower to 455.70Mn shares as of December 2025, a change that is up by 48.37Mn shares quarter on quarter and up 23.84Mn shares year over year.
The top institutional stake in American Tower as of December 31, 2025 belongs to VANGUARD GROUP INC, which owns 63.76Mn shares, or 13.60% of the company.
Among the most significant buyers of American Tower during December 2025 were J. Stern & Co. LLP (37.55Mn), NORGES BANK (6.67Mn), Capital International Investors (2.36Mn), LAZARD ASSET MANAGEMENT LLC (1.62Mn), CANADA PENSION PLAN INVESTMENT BOARD (1.56Mn).
Leading sellers of American Tower stock in December 2025 included MASSACHUSETTS FINANCIAL SERVICES CO /MA/ (1.94Mn), WELLINGTON MANAGEMENT GROUP LLP (1.87Mn), GOLDMAN SACHS GROUP INC (1.50Mn), BlackRock, Inc. (1.37Mn), COHEN & STEERS, INC. (1.01Mn).
The top 10 institutional holders of American Tower for the quarter ending December 2025 included VANGUARD GROUP INC (63.76Mn), BlackRock, Inc. (44.03Mn), J. Stern & Co. LLP (37.69Mn), STATE STREET CORP (20.99Mn), JPMORGAN CHASE & CO (14.41Mn), GEODE CAPITAL MANAGEMENT, LLC (13.50Mn), COHEN & STEERS, INC. (12.49Mn), FMR LLC (12.02Mn), MORGAN STANLEY (9.81Mn), DEUTSCHE BANK AG\ (6.91Mn).

1,668 Institutional Holders

2,219,516 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
VANGUARD GROUP INC	31 Dec, 2025	63,757,586	117,418	0.18%	$11,193,919,375.00
BlackRock, Inc.	31 Dec, 2025	44,034,756	-1,368,793	-3.01%	$7,731,182,133.00
J. Stern & Co. LLP	31 Dec, 2025	37,686,978	37,553,436	28,121.07%	$37,686,978.00
STATE STREET CORP	31 Dec, 2025	20,987,534	71,605	0.34%	$3,719,633,535.00
JPMORGAN CHASE & CO	31 Dec, 2025	14,412,242	-966,346	-6.28%	$2,530,357,622.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	13,499,035	227,361	1.71%	$2,361,674,915.00
COHEN & STEERS, INC.	31 Dec, 2025	12,487,087	-1,014,285	-7.51%	$2,192,460.00
FMR LLC	31 Dec, 2025	12,018,839	-228,694	-1.87%	$2,110,147,606.00
MORGAN STANLEY	31 Dec, 2025	9,807,651	-226,008	-2.25%	$1,721,929,724.00
DEUTSCHE BANK AG\	31 Dec, 2025	6,909,301	-626,144	-8.31%	$1,213,065,976.00
NORGES BANK	31 Dec, 2025	6,670,729	6,670,729	0.00%	$1,171,179,891.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	6,283,130	-74,712	-1.18%	$1,103,149,832.00
LAZARD ASSET MANAGEMENT LLC	31 Dec, 2025	6,085,163	1,620,781	36.30%	$1,068,371,954.00
PRINCIPAL FINANCIAL GROUP INC	31 Dec, 2025	6,038,061	57,545	0.96%	$1,060,102,709.00
NORTHERN TRUST CORP	31 Dec, 2025	5,353,004	-64,138	-1.18%	$939,826,913.00
FRANKLIN RESOURCES INC	31 Dec, 2025	5,338,399	-37,031	-0.69%	$937,262,712.00
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	31 Dec, 2025	5,102,069	-454,745	-8.18%	$895,770,254.00
Legal & General Group Plc	31 Dec, 2025	4,873,695	220,447	4.74%	$855,674,632.00
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	31 Dec, 2025	4,269,144	1,473,137	52.69%	$749,533,612.00
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	31 Dec, 2025	4,254,727	-175,954	-3.97%	$747,002,420.00

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