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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.

13F holders, Q1 2026

Institutional positions in American Tower Corp as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
1,760
+9 vs. Q4 2025
Shares held
431.5M
+28.6M (+7.1%) vs. Q4 2025
Total value
$74.4B
+$10.2B (+15.9%) vs. Q4 2025
New holders
155
725 more added
Sold out
146
651 more reduced

30 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting AMT on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 1,760 institutions
Q1 2021: 1,613 institutionsQ2 2021: 1,656 institutionsQ3 2021: 1,678 institutionsQ4 2021: 1,799 institutionsQ1 2022: 1,723 institutionsQ2 2022: 1,747 institutionsQ3 2022: 1,693 institutionsQ4 2022: 1,711 institutionsQ1 2023: 1,706 institutionsQ2 2023: 1,688 institutionsQ3 2023: 1,634 institutionsQ4 2023: 1,802 institutionsQ1 2024: 1,769 institutionsQ2 2024: 1,769 institutionsQ3 2024: 1,852 institutionsQ4 2024: 1,798 institutionsQ1 2025: 1,845 institutionsQ2 2025: 1,851 institutionsQ3 2025: 1,799 institutionsQ4 2025: 1,781 institutionsQ1 2026: 1,760 institutionsQ2 2026: 1,757 institutions
Value heldQ1 2026: $74.4B
Q1 2021: $95.8BQ2 2021: $111.7BQ3 2021: $109.6BQ4 2021: $121.8BQ1 2022: $104.3BQ2 2022: $109.0BQ3 2022: $91.0BQ4 2022: $90.0BQ1 2023: $86.3BQ2 2023: $82.1BQ3 2023: $69.9BQ4 2023: $93.6BQ1 2024: $85.0BQ2 2024: $83.8BQ3 2024: $99.4BQ4 2024: $79.6BQ1 2025: $95.0BQ2 2025: $96.5BQ3 2025: $82.5BQ4 2025: $77.0BQ1 2026: $74.4BQ2 2026: $72.0B
Institutions holding AMT and their total value by quarter
QuarterHoldersValue
Q2 20261,757$72.0B
Q1 20261,760$74.4B
Q4 20251,781$77.0B
Q3 20251,799$82.5B
Q2 20251,851$96.5B
Q1 20251,845$95.0B
Q4 20241,798$79.6B
Q3 20241,852$99.4B
Q2 20241,769$83.8B
Q1 20241,769$85.0B
Q4 20231,802$93.6B
Q3 20231,634$69.9B
Q2 20231,688$82.1B
Q1 20231,706$86.3B
Q4 20221,711$90.0B
Q3 20221,693$91.0B
Q2 20221,747$109.0B
Q1 20221,723$104.3B
Q4 20211,799$121.8B
Q3 20211,678$109.6B
Q2 20211,656$111.7B
Q1 20211,613$95.8B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding American Tower Corp; share changes are against Q4 2025.

Institutions holding AMT in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Heard Capital LLC1,112,105$191.9M9.92%−50,335−4.3%Reduced
M&G Plc1,115,542$193.0M1.00%+40,411+3.8%Added
D. E. Shaw & Co., Inc.1,131,650$195.3M0.15%−245,831−17.8%Reduced
Capital International Investors1,143,814$197.4M0.05%−2,727,554−70.5%Reduced
Mirae Asset Global ETFs Holdings Ltd.1,166,809$201.4M0.27%+534,134+84.4%Added
Point72 Asset Management, L.P.1,205,312$208.0M0.36%+1,127,463+1,448.3%Added
BNP Paribas Arbitrage, SA1,212,291$209.2M0.14%+279,058+29.9%Added
Sumitomo Mitsui Trust Holdings, Inc.1,220,578$210.6M0.14%+1,428+0.1%Added
Two Sigma Investments, LP1,226,889$211.7M0.18%+10,465+0.9%Added
Barclays PLC1,255,920$216.7M0.08%−199,459−13.7%Reduced
Loring Wolcott & Coolidge Fiduciary Advisors LLP1,216,494$218.1M2.19%−72,226−5.6%Reduced
American Century Companies Inc1,349,347$232.9M0.12%−616,861−31.4%Reduced
CIBC Bancorp USA Inc.1,358,233$234.4M0.32%+1,358,233New
Swiss National Bank1,373,900$237.1M0.14%+90,800+7.1%Added
SG Americas Securities, LLC1,382,740$238.6M0.26%+270,790+24.4%Added
Magellan Asset Management Ltd1,503,296$259.4M3.37%+431,517+40.3%Added
National Pension Service1,533,703$264.7M0.20%−14,189−0.9%Reduced
Raymond James Financial Inc1,551,441$267.7M0.08%+547,468+54.5%Added
HSBC Holdings PLC1,572,977$271.3M0.16%−140,291−8.2%Reduced
Barrow Hanley Mewhinney & Strauss LLC1,585,600$273.6M0.90%+151,112+10.5%Added
Cantillon Capital Management LLC1,612,473$278.3M1.85%−218,052−11.9%Reduced
Royal Bank of Canada1,645,003$283.9M0.05%+179,600+12.3%Added
Fisher Asset Management, LLC1,736,413$299.7M0.10%−43,120−2.4%Reduced
Nordea Investment Management AB2,044,852$350.0M0.33%+301,531+17.3%Added
Manufacturers Life Insurance Company, The2,315,919$399.7M0.34%−190,650−7.6%Reduced
Canada Pension Plan Investment Board2,386,605$411.9M0.27%+189,332+8.6%Added
Vanguard Fiduciary Trust Co2,699,678$465.9M0.12%+2,699,678New
Federated Hermes, Inc.2,756,058$475.6M0.77%+2,164,353+365.8%Added
Bank of New York Mellon Corp2,773,447$478.6M0.09%+57,595+2.1%Added
Ameriprise Financial Inc3,310,593$571.2M0.13%−729,744−18.1%Reduced
Franklin Resources Inc3,343,526$577.0M0.14%−1,994,873−37.4%Reduced
UBS Group AG3,488,057$602.0M0.11%−246,864−6.6%Reduced
Wells Fargo & Company3,501,851$604.3M0.12%+490,355+16.3%Added
Clearbridge Investments, LLC3,685,476$636.0M0.55%+450,496+13.9%Added
Amundi3,830,533$661.1M0.18%+663,976+21.0%Added
Nuveen, LLC3,889,182$671.2M0.18%−83,466−2.1%Reduced
Capital Research Global Investors4,103,353$708.2M0.11%+180,765+4.6%Added
Arrowstreet Capital, Limited Partnership4,195,978$724.1M0.39%−73,166−1.7%Reduced
UBS Asset Management Americas Inc4,339,494$748.9M0.16%+84,767+2.0%Added
Bank of America Corp4,511,662$778.6M0.06%+566,899+14.4%Added
Goldman Sachs Group Inc4,697,393$810.7M0.11%+835,013+21.6%Added
Price T Rowe Associates Inc4,774,353$824.0M0.10%−892,567−15.8%Reduced
Legal & General Group Plc4,825,921$832.9M0.19%−47,774−1.0%Reduced
Charles Schwab Investment Management Inc5,240,288$904.4M0.14%+138,219+2.7%Added
Northern Trust Corp5,339,734$921.5M0.12%−13,270−0.2%Reduced
Capital World Investors5,667,888$978.2M0.13%+1,446,797+34.3%Added
Dimensional Fund Advisors LP5,811,041$1.00B0.21%−472,089−7.5%Reduced
Principal Financial Group Inc5,914,591$1.02B0.55%−123,470−2.0%Reduced
Invesco Ltd.7,275,230$1.26B0.12%+327,040+4.7%Added
Lazard Asset Management LLC7,325,943$1.26B2.08%+1,240,780+20.4%Added
Deutsche Bank AG7,769,353$1.34B0.44%+860,052+12.4%Added
Morgan Stanley9,583,923$1.65B0.10%−223,728−2.3%Reduced
FMR LLC11,317,048$1.95B0.10%−701,791−5.8%Reduced
Cohen & Steers, Inc.12,619,866$2.18B3.78%+132,779+1.1%Added
Geode Capital Management, LLC13,933,628$2.40B0.15%+434,593+3.2%Added
JPMorgan Chase & Co15,128,367$2.58B0.17%+716,125+5.0%Added
State Street Corp21,434,609$3.70B0.13%+447,075+2.1%Added
Vanguard Portfolio Management LLC27,596,159$4.76B0.25%+27,596,159New
Vanguard Capital Management LLC30,362,380$5.24B0.13%+30,362,380New
BlackRock, Inc.44,954,137$7.76B0.14%+919,381+2.1%Added
Two Sigma Advisers, LP0$00.00%−432,300−100.0%Sold out
Alkeon Capital Management LLC0$00.00%−428,401−100.0%Sold out
Sora Investors LLC0$00.00%−176,315−100.0%Sold out
Renaissance Technologies LLC0$00.00%−162,039−100.0%Sold out
Schonfeld Strategic Advisors LLC0$00.00%−117,838−100.0%Sold out
Quadrature Capital Ltd0$00.00%−99,316−100.0%Sold out
Nan Shan Life Insurance Co., Ltd.0$00.00%−95,766−100.0%Sold out
Skandinaviska Enskilda Banken AB (publ)0$00.00%−88,055−100.0%Sold out
Capital Innovations LLC0$00.00%−58,925−100.0%Sold out
Stack Financial Management, Inc0$00.00%−57,390−100.0%Sold out
iA Global Asset Management Inc.0$00.00%−31,582−100.0%Sold out
S.E.E.D. Planning Group LLC0$00.00%−28,253−100.0%Sold out
Twinbeech Capital LP0$00.00%−22,800−100.0%Sold out
Financiere des Professionnels - Fonds d,investissement inc.0$00.00%−19,160−100.0%Sold out
IFG Advisory, LLC0$00.00%−18,138−100.0%Sold out
Dark Forest Capital Management LP0$00.00%−16,528−100.0%Sold out
Westwood Holdings Group Inc.0$00.00%−16,138−100.0%Sold out
FORA Capital, LLC0$00.00%−12,812−100.0%Sold out
Quest Partners LLC0$00.00%−14,093−100.0%Sold out
Highland Capital Management, LLC0$00.00%−13,452−100.0%Sold out
Elo Mutual Pension Insurance Co0$00.00%−12,932−100.0%Sold out
Delta Global Management LP0$00.00%−12,746−100.0%Sold out
Engineers Gate Manager LP0$00.00%−12,154−100.0%Sold out
Quantitative Investment Management, LLC0$00.00%−12,146−100.0%Sold out
Ceredex Value Advisors LLC0$00.00%−11,996−100.0%Sold out
Oak Thistle LLC0$00.00%−11,991−100.0%Sold out
Inceptionr LLC0$00.00%−11,103−100.0%Sold out
LMR Partners LLP0$00.00%−10,386−100.0%Sold out
Caption Management, LLC0$00.00%−8,000−100.0%Sold out
HighPoint Advisor Group LLC0$00.00%−7,717−100.0%Sold out
Woodline Partners LP0$00.00%−7,126−100.0%Sold out
Grantham, Mayo, Van Otterloo & Co. LLC0$00.00%−6,412−100.0%Sold out
Fox Run Management, L.L.C.0$00.00%−5,687−100.0%Sold out
Lee Financial Co0$00.00%−5,176−100.0%Sold out
Axxcess Wealth Management, LLC0$00.00%−4,536−100.0%Sold out
Hardworking Capital Advisors, LLC0$00.00%−4,492−100.0%Sold out
Fire Capital Management LLC0$00.00%−4,110−100.0%Sold out
Sage Mountain Advisors LLC0$00.00%−3,944−100.0%Sold out
Pathway Financial Advisers, LLC0$00.00%−3,869−100.0%Sold out
Buckingham Strategic Partners0$00.00%−3,836−100.0%Sold out