AMERICAN TOWER CORP (AMT) Institutional Ownership Changes & 13F Activity

AMERICAN TOWER CORP (AMT). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Cantillon Capital Management, Akre Capital Management, Sequoia Financial Advisors, Renaissance Technologies LLC, and Mairs & Power Growth Fund.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q2 2014Torray FundBuy159,400259,812$23,378
Q2 2014Akre Capital ManagementSell-2,5254,024,596$362,133
Q2 2014Meritage GroupBuy2621,867,782$168,063
Q1 2014Meritage GroupBuy1,867,5201,867,520$152,894
Q1 2014Akre Capital ManagementBuy700,7454,027,121$329,700
Q1 2014Torray FundBuy42,790100,412$8,221
Q4 2013Akre Capital ManagementBuy497,6403,326,376$265,511
Q4 2013Torray FundSell-65557,622$4,599
Q3 2013Akre Capital ManagementBuy918,5562,828,736$209,694
Q3 2013Renaissance Technologies LLCBuy252,639252,639$18,728
Q3 2013Torray FundBuy9058,277$4,320
Q2 2013Akre Capital ManagementBuy1,910,1801,910,180$139,768
Q2 2013Torray FundBuy58,18758,187$4,258

Frequently asked questions about AMT activity

  • Which institutional owners are buying AMT?

    Institutional owners buying AMT include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in AMT activity?

    "Buy" means an investor increased their reported position in AMT compared to the prior reporting period. This reflects growing exposure to AMERICAN TOWER CORP (AMT) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in AMT increasing?

    Institutional interest in AMT can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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