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 (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include State Street Corp, Citadel Advisors Llc, Manufacturers Life Insurance Company, The, Allianz Asset Management Gmbh, and Envestnet Asset Management Inc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Cim Investment Management IncSell-533-9.1%5,311$868.72KQ2 2026Sep 29, 2026
Envestnet Asset Management IncBuy+69,629+6.7%1,103,567$180.51MQ2 2026Sep 23, 2026
Qrg Capital Management, Inc.Buy+1,648+22.9%8,847$1.45MQ2 2026Sep 23, 2026
Envestnet Portfolio Solutions, Inc.Buy+399+2.9%14,398$2.36MQ2 2026Sep 23, 2026
State Street CorpBuy+631,593+2.9%22,066,202$3.65BQ2 2026Sep 22, 2026
Andra Ap-FondenSell-100-0.2%44,485$7.28MQ2 2026Sep 22, 2026
Anchor Investment Management, LlcSell-847-37.5%1,413$231.21KQ2 2026Sep 15, 2026
Cherry Tree Wealth Management, LlcSell-13-25.5%38$6.22KQ2 2026Sep 15, 2026
Manufacturers Life Insurance Company, TheSell-443,852-19.2%1,872,067$306.21MQ2 2026Sep 09, 2026
Integrated Wealth Concepts LlcBuy+6,336+8.9%77,512$12.68MQ2 2026Sep 09, 2026
Anchor Capital Advisors LlcSell-24,443-25.6%70,867$11.59MQ2 2026Sep 03, 2026
Citadel Advisors LlcBuy+494,529+56.4%1,371,292$224.30MQ2 2026Sep 02, 2026
Allianz Asset Management GmbhSell-278,498-36.6%482,190$78.87MQ2 2026Sep 02, 2026
Second Line Capital, LlcBuy+2,580+16.1%18,630$3.08MQ2 2026Sep 02, 2026
Brown, Lisle/Cummings, Inc.Buy+3+0.8%366$59.87KQ2 2026Sep 02, 2026
Cornerstone Financial Management LlcBuy+33+60.0%88$14.39KQ2 2026Aug 28, 2026
Corient Private Wealth LlcSell-41,126-7.5%505,701$82.72MQ2 2026Aug 27, 2026
Groupe La FrancaiseBuy+33,505—33,505$5.48MQ2 2026Aug 25, 2026
California State Teachers Retirement SystemBuy+33,329+4.9%715,369$117.01MQ2 2026Aug 24, 2026
Cyber Hornet Etfs LlcSell-15-1.2%1,271$207.90KQ2 2026Aug 24, 2026
Vancity Investment Management LtdSell-1-0.0%36,056$5.90MQ2 2026Aug 24, 2026
Assenagon Asset Management S.A.Buy+1,422+7.6%20,160$3.30MQ2 2026Aug 21, 2026
Harvest Fund Management Co., LtdBuy+359—359$59.00KQ2 2026Aug 20, 2026
Rehmann Capital Advisory GroupSell-37-2.6%1,405$230.46KQ2 2026Aug 20, 2026
Kingsview Wealth Management, LlcSell-34,303-62.5%20,624$3.37MQ2 2026Aug 19, 2026
Mercer Global Advisors IncBuy+22,986+64.4%58,701$9.60MQ2 2026Aug 19, 2026
Stock Yards Bank & Trust CoSell-15,146-17.1%73,395$12.01MQ2 2026Aug 19, 2026
Financial Avengers, Inc.Buy+1+1.6%62$10.08KQ2 2026Aug 19, 2026
Liontrust Investment Partners LlpSell-64,592-12.1%470,771$77.00MQ2 2026Aug 18, 2026
Rakuten Investment Management, Inc.Buy+6,735+9.7%76,213$12.85MQ2 2026Aug 18, 2026
Showing 30 of 1,685

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.