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American Tower Corp

AMT
Exchange
NYSE
Industry
Real Estate Investment Trusts
SEC CIK
0001053507

In the last 90 days, American Tower Corp insiders filed 1 open-market purchase and 2 sales; 1,757 institutions reported holding it in 13F filings for Q2 2026, worth $72.0B in total; Akre Capital Management is the only superinvestor holding it.

Q3 2025 vs. Q2 2025

How the institutions holding American Tower Corp changed between Q2 2025 and Q3 2025.

All holders in Q3 2025All holders in Q2 2025

13F holders of AMT: Q2 2025 compared with Q3 2025
MeasureQ2 2025Of which not filed for Q3 2025Q3 2025Change
Holders1,852291,799−24
Shares437.0M7.03M429.3M−648.5K (−0.2%)
Value$96.5B$1.55B$82.5B−$12.4B (−13.1%)

29 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (132)

Institutions that held American Tower Corp at the end of Q3 2025 but not at the end of Q2 2025.

Showing the largest 100 of 132 by value.

Institutions new to AMT in Q3 2025
InstitutionSharesValue% of portfolio
Barrow Hanley Mewhinney & Strauss LLC1,590,435$305.9M0.97%
Citadel Advisors LLC555,572$106.8M0.09%
Voloridge Investment Management, LLC437,763$84.2M0.28%
Jane Street Group, LLC379,916$73.1M0.09%
Antipodes Partners Ltd354,584$68.2M1.53%
Samlyn Capital, LLC320,592$61.7M0.88%
AXA Investment Managers S.A.307,164$59.1M0.16%
Credit Agricole S A236,665$45.5M0.15%
Two Sigma Advisers, LP212,500$40.9M0.08%
Natixis211,832$40.7M0.22%
CIBC Bancorp USA Inc.185,280$35.6M0.22%
Cubist Systematic Strategies, LLC150,320$28.9M0.41%
HRT Financial LP108,916$20.9M0.08%
Tudor Investment Corp Et Al105,643$20.3M0.13%
Qube Research & Technologies Ltd92,038$17.7M0.03%
Renaissance Technologies LLC74,939$14.4M0.02%
First Horizon Corp71,555$13.8M0.65%
Aew Capital Management L P63,110$12.1M0.68%
Entropy Technologies, LP62,541$12.0M0.90%
Y-Intercept (Hong Kong) Ltd55,299$10.6M0.26%
Quantbot Technologies LP52,029$10.0M0.27%
Signal Advisors Wealth, LLC41,957$8.07M0.73%
XTX Topco Ltd37,385$7.19M0.37%
Marex Group plc30,960$5.95M0.07%
Rakuten Investment Management, Inc.66,226$5.16M0.02%
BLI - Banque de Luxembourg Investments25,500$4.96M0.14%
Virtu Financial LLC24,381$4.69M0.26%
Abc Arbitrage SA21,280$4.09M0.40%
Edgestream Partners, L.P.20,307$3.91M0.11%
Holocene Advisors, LP16,634$3.20M0.01%
CAPROCK Group, Inc.15,417$3.14M0.08%
Shorepoint Capital Partners LLC15,817$3.04M0.61%
Machina Capital S.A.S.14,927$2.87M0.51%
Rockland Trust Co11,948$2.30M0.09%
Lecap Asset Management Ltd11,685$2.25M0.78%
Brevan Howard Capital Management LP10,960$2.11M0.03%
Oak Thistle LLC10,927$2.10M0.32%
Simplex Trading, LLC9,688$1.86M0.04%
Capstone Investment Advisors, LLC9,018$1.73M0.02%
Tema ETFs LLC7,897$1.52M0.13%
Aigen Investment Management, LP7,651$1.47M0.23%
Bridgefront Capital, LLC6,941$1.33M0.39%
Farringdon Capital, Ltd.6,826$1.31M0.33%
111 Capital6,352$1.22M0.23%
Portfolio Design Labs, LLC6,140$1.18M0.20%
Krilogy Financial LLC5,818$1.04M0.04%
Mondrian Investment Partners LTD5,296$1.02M0.02%
Neo Ivy Capital Management4,374$841.2K0.21%
Berman McAleer LLC4,254$825.4K0.12%
Fox Run Management, L.L.C.3,930$755.8K0.12%
Shum Financial Group, Inc.3,796$730.1K0.54%
Polymer Capital Management (US) LLC3,755$722.2K0.10%
Graham Capital Management, L.P.3,660$703.9K0.03%
Magnetar Financial LLC3,344$643.1K0.00%
Vista Cima Wealth Management LLC3,121$600.2K0.50%
Mendel Money Management3,015$579.8K0.24%
Tred Avon Family Wealth, LLC2,956$568.5K0.20%
Schnieders Capital Management, LLC.2,700$519.3K0.09%
Warwick Investment Management, Inc.2,666$512.7K0.09%
Fullerton Fund Management Co Ltd.2,665$512.5K0.02%
Legacy Advisors, LLC2,500$480.8K0.06%
Sustainable Insight Capital Management, LLC2,423$466.0K0.15%
Maridea Wealth Management LLC2,122$409.7K0.06%
Jefferies Financial Group Inc.2,091$402.1K0.00%
Stoneridge Investment Partners LLC2,079$400.0K0.27%
Demars Financial Group, LLC2,040$392.3K0.14%
Oxford Asset Management LLP1,985$381.8K0.13%
Baxter Bros Inc1,750$336.6K0.04%
McDaniel Terry & Co1,737$334.1K0.03%
Dynamic Technology Lab Private Ltd1,723$331.0K0.06%
Spirepoint Private Client, LLC1,688$324.6K0.03%
Violich Capital Management, Inc.1,650$317.3K0.04%
Armis Advisers, LLC1,792$316.5K0.03%
Armistice Capital, LLC1,444$277.7K0.01%
Connecticut Wealth Management, LLC1,442$277.3K0.01%
Montecito Bank & Trust1,393$267.9K0.04%
Scientech Research LLC1,369$263.3K0.09%
Ariadne Wealth Management, LP1,452$263.0K0.12%
Legacy Financial Advisors, Inc.1,361$261.7K0.04%
Westfuller Advisors, LLC1,347$261.3K0.12%
Elevatus Welath Management1,327$255.2K0.07%
Cambria Investment Management, L.P.1,313$252.5K0.02%
Armstrong, Fleming & Moore, Inc1,311$252.0K0.12%
Flow Traders U.S. LLC1,186$228.0K0.01%
Versor Investments LP1,123$216.0K0.04%
a16z Perennial Management, L.P.1,118$215.0K0.02%
SMH Capital Advisors Inc1,200$214.8K0.44%
Cooper Financial Group1,106$212.8K0.02%
Trust Co of Virginia1,095$210.6K0.02%
Triad Wealth Partners, LLC1,083$208.3K0.03%
Klingman & Associates, LLC1,064$204.6K0.01%
Grant Private Wealth Management Inc1,047$201.4K0.12%
Quarry LP782$150.4K0.04%
SJS Investment Consulting Inc.711$136.7K0.02%
Munich Reinsurance Co Stock Corp in Munich693$133.3K0.00%
Steigerwald, Gordon & Koch Inc.544$104.6K0.01%
Harel Insurance Investments & Financial Services Ltd.487$94.0K0.00%
Wiser Advisor Group LLC484$93.1K0.12%
Hoey Investments, Inc450$86.5K0.01%
Financial Consulate, Inc445$85.6K0.01%

Sold out (156)

Institutions that held American Tower Corp at the end of Q2 2025 and filed for Q3 2025 without it.

Showing the largest 100 of 156 by value.

Institutions that sold out of AMT in Q3 2025
InstitutionShares, Q2 2025Value, Q2 2025
Viking Global Investors LPSuperinvestorViking Global Investors2,797,125$618.2M
Marshall Wace, LLP509,621$112.6M
Balyasny Asset Management LLC406,455$89.8M
Oribel Capital Management, LP343,900$76.0M
AXA S.A.306,232$67.7M
Atalanta Sosnoff Capital, LLC184,602$40.8M
Mediolanum International Funds Ltd124,501$27.1M
Adams Diversified Equity Fund, Inc.91,200$20.2M
Land & Buildings Investment Management, LLC78,538$17.4M
Generate Investment Management Ltd76,471$16.9M
Firetrail Investments Pty Ltd63,375$14.0M
Gradient Investments LLC62,551$13.8M
Woodline Partners LP50,638$11.2M
Mirae Asset Securities (USA) Inc.50,312$11.1M
Parkwood LLC44,381$9.81M
London & Capital Asset Management Ltd27,922$6.17M
Greenland Capital Management LP25,601$5.66M
Waterfront Capital Partners, LLC20,000$4.42M
Tabor Asset Management, LP15,781$3.49M
Napa Wealth Management11,963$2.64M
Accuvest Global Advisors11,963$2.64M
Insight Wealth Strategies, LLC10,664$2.39M
Highland Capital Management, LLC10,204$2.26M
V-Square Quantitative Management LLC9,411$2.08M
ARS Investment Partners, LLC8,024$1.77M
Signet Financial Management, LLC7,262$1.60M
Altshuler Shaham Ltd6,000$1.33M
Nicola Wealth Management Ltd.4,881$1.08M
Mattson Financial Services, LLC4,522$999.5K
Shay Capital LLC4,500$994.6K
Accretive Wealth Partners, LLC4,354$962.4K
Landscape Capital Management, L.L.C.4,285$947.1K
Mitsubishi UFJ Asset Management (UK) Ltd.4,000$884.0K
Sargent Investment Group, LLC4,187$874.7K
Journey Strategic Wealth LLC3,661$809.2K
Illinois Municipal Retirement Fund3,557$786.2K
iA Global Asset Management Inc.3,448$762.0K
ICONIQ Capital, LLC2,793$617.3K
L.M. Kohn & Company2,607$576.2K
Unique Wealth Strategies, LLC2,591$572.7K
Morningstar Investment Management LLC2,559$566.0K
Dynasty Wealth Management, LLC2,528$558.7K
1858 Wealth Management, LLC2,407$532.0K
Advisors Preferred, LLC2,350$527.5K
LRT Capital Management, LLC2,342$517.6K
O'Brien Greene & Co. Inc2,271$501.9K
Burns Matteson Capital Management, LLC2,173$480.2K
Proficio Capital Partners LLC2,097$463.5K
Brown Financial Advisors2,096$463.3K
Intrua Financial, LLC2,055$454.2K
Qtron Investments LLC1,978$437.2K
Copley Financial Group, Inc.1,976$436.7K
Advisory Alpha, LLC1,975$436.7K
Infrastructure Capital Advisors, LLC1,844$407.6K
Prossimo Advisors, LLC1,625$359.0K
Hibernia Wealth Partners, LLC1,574$348.1K
FFT Wealth Management LLC1,650$346.5K
Advisor Resource Council1,537$339.7K
MQS Management LLC1,522$336.4K
Concord Asset Management, LLC1,373$303.5K
First Business Financial Services, Inc.1,359$300.4K
Moody Aldrich Partners LLC1,343$296.8K
Accelerate Investment Advisors LLC1,322$292.1K
Tower View Investment Management & Research LLC1,307$288.9K
Eqis Capital Management, Inc.1,270$280.8K
Coyle Financial Counsel LLC1,254$277.1K
MBB Public Markets I LLC1,213$268.1K
4J Wealth Management LLC1,186$262.2K
Brady Family Wealth, LLC1,171$258.8K
Accredited Investors Inc.1,167$258.0K
Penobscot Investment Management Company, Inc.1,162$256.8K
Visionary Wealth Advisors1,161$256.6K
Crawford Investment Counsel Inc1,127$249.2K
Kathmere Capital Management, LLC1,126$248.9K
Cassaday & Co Wealth Management LLC1,106$244.4K
Avidian Wealth Solutions, LLC1,097$242.4K
Secure Asset Management, LLC1,095$241.9K
LaFleur & Godfrey LLC1,089$240.7K
Veracity Capital LLC1,088$240.5K
Fundamentun, LLC1,073$237.3K
Meridian Wealth Management, LLC1,071$236.8K
Steel Peak Wealth Management LLC1,063$235.3K
Lokken Investment Group LLC1,052$232.6K
Valmark Advisers, Inc.1,052$232.5K
Consolidated Planning Corp1,048$231.5K
Cerro Pacific Wealth Advisors LLC1,036$228.9K
Ellis Investment Partners, LLC1,022$225.8K
Brady Martz Wealth Solutions, LLC1,016$224.6K
FLC Capital Advisors1,010$223.2K
Fortune Financial Advisors, LLC1,008$222.8K
Beck Mack & Oliver LLC1,000$221.0K
IMS Capital Management1,000$221.0K
Corient IA LLC1,000$221.0K
Camden Capital, LLC992$219.3K
Breakwater Capital Group989$218.6K
Cushing Capital Partners, LLC980$218.2K
MJP Associates Inc979$216.3K
Thompson Siegel & Walmsley LLC977$216.0K
Commonwealth Financial Services, LLC968$213.9K
Wealth Architects, LLC965$213.3K

Not filed for Q3 2025 yet (29)

Institutions that held American Tower Corp at the end of Q2 2025 and haven't filed a 13F for Q3 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding AMT in Q2 2025 that haven't filed for Q3 2025
InstitutionShares, Q2 2025Value, Q2 2025
Norges Bank6,207,018$1.37B
EP Wealth Advisors, LLC284,631$62.9M
CIBC World Markets Corp180,112$39.8M
Avantax Advisory Services, Inc.77,824$17.2M
First Horizon Advisors, Inc.72,290$16.0M
Grassi Investment Management49,967$11.0M
NBW Capital LLC25,721$5.68M
Semmax Financial Advisors Inc.18,833$3.89M
Congress Wealth Management LLC16,569$3.66M
TFG Advisers LLC16,186$3.58M
MEAG MUNICH ERGO, Kapitalanlagegesellschaft mbH15,633$3.46M
Forte Capital LLC12,218$2.70M
Enterprise Bank & Trust Co10,740$2.37M
Atria Wealth Solutions, Inc.7,146$1.59M
Scott Marsh Financial, LLC6,094$1.35M
Savoie Capital LLC5,650$1.25M
Safe Harbor Fiduciary, LLC5,484$1.21M
Graypoint LLC3,745$827.8K
Schnieders Capital Management LLC2,837$627.0K
Union Savings Bank2,613$544.5K
Belmont Capital, LLC2,396$529.6K
E Fund Management Co., Ltd.1,177$260.1K
J. W. Coons Advisors, LLC1,041$230.1K
Quaero Capital S.A.1,034$228.5K
Atlas Capital Advisors LLC400$88.4K
Legacy Investment Solutions, LLC140$30.9K
Iron Horse Wealth Management, LLC20$4.42K
Financial Gravity Companies, Inc.7$1.55K
Parkworth Wealth Management, Inc.6$1.33K