American Tower Corp /Ma/ (AMT) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

2,134,495Shares held by institutions

$363,611,223Value of institutional holdings

93.38%Institutional ownership %

-1.86%Shares Changed QoQ

1,826No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

American Tower Corp /Ma/ (NYSE:AMT) has 1,717 institutional investors with active 13F positions as of December 2025.

These investors held 110.0% of outstanding shares in December 2025, up from 96.4% in September 2025.
Their total shares held in AMT increased 17.38% quarter over quarter, and separately, investors owning American Tower decreased 2.0% from a year ago.
During the quarter, 752 of these 1,717 funds increased positions in AMT, 795 reduced exposure, and 170 held steady.
Institutional investors collectively held 516.08Mn shares in American Tower as of December 2025, up by 76.43Mn shares quarter on quarter, and up 59.39Mn shares year over year.
J. Stern & Co. LLP is the top holder of American Tower as of December 31, 2025, with 75.37Mn shares representing 16.07% of outstanding stock.
The most significant purchases of AMT for the quarter ending December 2025 came from J. Stern & Co. LLP (75.24Mn), NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO (9.71Mn), NORGES BANK (6.67Mn), Capital International Investors (2.36Mn), LAZARD ASSET MANAGEMENT LLC (1.62Mn).
Leading sellers of American Tower shares for the quarter ending December 2025 were Jpmorgan Chase & Co (16.34Mn), Bank Of America Corp /De/ (4.03Mn), MASSACHUSETTS FINANCIAL SERVICES CO /MA/ (1.94Mn), WELLINGTON MANAGEMENT GROUP LLP (1.87Mn), CANTILLON CAPITAL MANAGEMENT LLC (1.8Mn).
According to Business Quant data, leading holders of AMT for December 2025 are J. Stern & Co. LLP (75.37Mn), VANGUARD GROUP INC (63.76Mn), BlackRock, Inc. (44.03Mn), State Street Corp (20.99Mn), Jpmorgan Chase & Co (14.41Mn), GEODE CAPITAL MANAGEMENT, LLC (13.5Mn), Cohen & Steers, Inc. (12.49Mn), FMR LLC (12.02Mn), Morgan Stanley (9.81Mn), NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO (9.76Mn).

1,720 Institutional Holders

2,134,495 Total Shares Held

Rows:

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Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	-1,368,793	-3.01%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	117,418	0.18%	$0.00
J. Stern & Co. LLP	31 Dec, 2025	75,240,414	56,342.14%	$0.00
HSBC HOLDINGS PLC	31 Dec, 2025	1,874,692	120.80%	$0.00
State Street Corp	31 Dec, 2025	71,605	0.34%	$0.00
Nuveen, LLC	31 Dec, 2025	-106,107	-2.60%	$0.00
Barclays Plc	31 Dec, 2025	-1,118,863	-43.46%	$0.00
Jpmorgan Chase & Co	31 Dec, 2025	-16,344,934	-53.14%	$0.00
UBS Group AG	31 Dec, 2025	58,808	1.60%	$0.00
Rockefeller Capital Management L.P.	31 Dec, 2025	108,173	95.15%	$0.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	227,361	1.71%	$0.00
National Pension Service	31 Dec, 2025	307,622	24.80%	$0.00
PEAK6 LLC	31 Dec, 2025	31,220	0.00%	$0.00
Cohen & Steers, Inc.	31 Dec, 2025	-1,014,285	-7.51%	$0.00
Corient Private Wealth LLC	31 Dec, 2025	528,183	82.95%	$0.00
World Investment Advisors	31 Dec, 2025	4,879	129.25%	$0.00
FMR LLC	31 Dec, 2025	-228,694	-1.87%	$0.00
Heard Capital LLC	31 Dec, 2025	-870,290	-42.81%	$0.00
Purpose Unlimited Inc.	31 Dec, 2025	4,221	0.00%	$0.00
Morgan Stanley	31 Dec, 2025	-226,008	-2.25%	$0.00

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