AMT American Tower Corp.

NYSE
$178.39

American Tower Corp. (AMT) Institutional Ownership

What the institutions did with AMT last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.

Managers reporting
1,873
filed a 13F this quarter
Managers holding
1,724
+4 on the quarter
Buyers
839
153 opened new
Sellers
815
149 sold out entirely
Buyer share
50.7%
of managers who traded it
Breadth
+1.5
net buyers, as a share of those trading

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Largest holders

Manager Shares % of reported
BlackRock, Inc. 45.8M 10.4%
VANGUARD CAPITAL MANAGEMENT LLC 30.4M 6.9%
VANGUARD PORTFOLIO MANAGEMENT LLC 27.9M 6.3%
STATE STREET CORP 22.1M 5.0%
GEODE CAPITAL MANAGEMENT, LLC 13.8M 3.1%
COHEN & STEERS, INC. 13.8M 3.1%
FMR LLC 11.4M 2.6%
MORGAN STANLEY 9.6M 2.2%
JPMORGAN CHASE & CO 8.9M 2.0%
LAZARD ASSET MANAGEMENT LLC 8.4M 1.9%
Invesco Ltd. 7.1M 1.6%
DEUTSCHE BANK AG\ 6.7M 1.5%
Capital World Investors 6.6M 1.5%
NORGES BANK 6.4M 1.4%
DIMENSIONAL FUND ADVISORS LP 5.9M 1.3%
PRINCIPAL FINANCIAL GROUP INC 5.7M 1.3%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 5.6M 1.3%
NORTHERN TRUST CORP 5.0M 1.1%
GOLDMAN SACHS GROUP INC 5.0M 1.1%
Legal & General Group Plc 4.9M 1.1%
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 4.6M 1.0%
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 4.5M 1.0%
PRICE T ROWE ASSOCIATES INC /MD/ 4.2M 1.0%
Amundi 4.0M 0.9%
BANK OF AMERICA CORP /DE/ 3.9M 0.9%

Largest changes

Manager Action Previous Current Change
JPMORGAN CHASE & CO Reduced 15.1M 8.9M -6.3M
AQR CAPITAL MANAGEMENT LLC Increased 574.1K 2.5M +1.9M
ONTARIO TEACHERS PENSION PLAN BOARD New 0 1.8M +1.8M
Cantillon Capital Management LLC Sold Out 1.6M 0 -1.6M
JANE STREET GROUP, LLC Increased 63.1K 1.5M +1.5M
Nuveen, LLC Reduced 3.9M 2.6M -1.3M
Capital Research Global Investors Reduced 4.1M 2.9M -1.2M
MILLENNIUM MANAGEMENT LLC Increased 1.0M 2.2M +1.2M
COHEN & STEERS, INC. Increased 12.6M 13.8M +1.2M
Qube Research & Technologies Ltd Increased 15.9K 1.2M +1.1M
LAZARD ASSET MANAGEMENT LLC Increased 7.3M 8.4M +1.1M
DEUTSCHE BANK AG\ Reduced 7.8M 6.7M -1.1M
FRANKLIN RESOURCES INC Reduced 3.3M 2.4M -925.2K
Fisher Asset Management, LLC Reduced 1.7M 828.6K -907.8K
Capital World Investors Increased 5.7M 6.6M +887.0K
BlackRock, Inc. Increased 45.0M 45.8M +842.4K
TWO SIGMA INVESTMENTS, LP Reduced 1.2M 431.9K -795.0K
STATE STREET CORP Increased 21.4M 22.1M +631.6K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Increased 1.2M 1.8M +623.7K
ACADIAN ASSET MANAGEMENT LLC Reduced 735.6K 124.2K -611.4K
Altshuler Shaham Ltd New 0 610.0K +610.0K
BANK OF AMERICA CORP /DE/ Reduced 4.5M 3.9M -606.1K
CANADA PENSION PLAN INVESTMENT BOARD Reduced 2.4M 1.8M -605.3K
MARSHALL WACE, LLP Increased 751.3K 1.3M +591.7K
BNP PARIBAS ASSET MANAGEMENT Holding S.A. Increased 783.6K 1.4M +585.2K

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.