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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, Q3 2021

Institutional positions in American Tower Corp as of Sep 30, 2021. 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
1,678
+47 vs. Q2 2021
Shares held
412.7M
−255.0K (−0.1%) vs. Q2 2021
Total value
$109.6B
−$2.00B (−1.8%) vs. Q2 2021
New holders
131
744 more added
Sold out
84
529 more reduced

25 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2021: 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 holdersQ3 2021: 1,678 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: 1,852 institutionsQ3 2025: 1,799 institutionsQ4 2025: 1,781 institutionsQ1 2026: 1,760 institutionsQ2 2026: 1,757 institutions
Value heldQ3 2021: $109.6B
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 20251,852$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, Q3 2021

Shares, value and share of portfolio for each institution holding American Tower Corp; share changes are against Q2 2021.

Institutions holding AMT in Q3 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Autus Asset Management, LLC14,098$3.74M0.41%+713+5.3%Added
Transcend Wealth Collective, LLC13,028$3.74M0.34%−119−0.9%Reduced
Condor Capital Management13,997$3.71M0.40%+243+1.8%Added
Lazard Asset Management LLC13,982$3.71M0.00%−20,521−59.5%Reduced
Cigna Investments Inc13,974$3.71M0.28%−243−1.7%Reduced
Central Trust Co13,904$3.69M0.13%+593+4.5%Added
Sterling Investment Advisors, Ltd.13,864$3.68M1.09%−99−0.7%Reduced
Miller Howard Investments Inc13,817$3.67M0.15%−9,075−39.6%Reduced
Hotaling Investment Management, LLC13,713$3.64M1.51%+10+0.1%Added
Kingsview Wealth Management, LLC13,666$3.63M0.17%+498+3.8%Added
Rossmore Private Capital13,543$3.59M0.62%+950+7.5%Added
TD Private Client Wealth LLC13,443$3.57M0.15%−153−1.1%Reduced
Hemenway Trust Co LLC13,424$3.56M0.36%+245+1.9%Added
We Are One Seven, LLC12,630$3.56M0.45%+820+6.9%Added
GSI Capital Advisors LLC25,232$3.55M1.77%+7,462+42.0%Added
Nixon Peabody Trust Co13,352$3.54M1.28%+1,167+9.6%Added
Hennion & Walsh Asset Management, Inc.13,342$3.54M0.19%+5,126+62.4%Added
Enterprise Bank & Trust Co13,302$3.53M1.39%−216−1.6%Reduced
Cetera Investment Advisers13,187$3.50M0.06%+629+5.0%Added
Bessemer Securities LLC13,158$3.49M1.19%+2,508+23.5%Added
Silvercrest Asset Management Group LLC13,094$3.48M0.02%−1,150−8.1%Reduced
Benjamin F. Edwards & Company, Inc.13,090$3.47M0.17%−827−5.9%Reduced
Perpetual Investment Management Ltd13,040$3.46M0.44%+1,526+13.3%Added
Winton Group Ltd12,954$3.44M0.19%+8,118+167.9%Added
Phocas Financial Corp.12,922$3.43M0.43%+126+1.0%Added
Welch & Forbes LLC12,873$3.42M0.06%−7−0.1%Reduced
Twinbeech Capital LP12,810$3.40M0.24%+5,222+68.8%Added
IBM Retirement Fund12,743$3.38M0.26%+27+0.2%Added
Cape Cod Five Cents Savings Bank12,690$3.37M0.35%+241+1.9%Added
Buckingham Strategic Wealth, LLC12,671$3.36M0.07%+138+1.1%Added
Wetherby Asset Management Inc12,606$3.35M0.21%+86+0.7%Added
Regions Financial Corp12,415$3.30M0.03%+40+0.3%Added
Fuller & Thaler Asset Management, Inc.12,410$3.29M0.02%+3,100+33.3%Added
Howe & Rusling Inc12,357$3.28M0.41%+537+4.5%Added
Greenline Partners, LLC12,295$3.26M0.68%−314−2.5%Reduced
Earnest Partners LLC12,280$3.26M0.02%−662−5.1%Reduced
Winfield Associates, Inc.12,217$3.24M1.20%+65+0.5%Added
Telos Capital Management, Inc.12,197$3.24M0.44%−100−0.8%Reduced
HCR Wealth Advisors12,152$3.23M0.54%+514+4.4%Added
Jacobs Levy Equity Management, Inc12,112$3.21M0.02%+11,105+1,102.8%Added
Pinebridge Investments, L.P.12,085$3.21M0.04%−8−0.1%Reduced
World Asset Management Inc12,005$3.19M0.32%−788−6.2%Reduced
Beech Hill Advisors, Inc.11,985$3.18M1.32%−115−1.0%Reduced
Private Trust Co NA11,892$3.16M0.46%−163−1.4%Reduced
Strategic Capital Advisers, Inc.11,862$3.15M2.45%+1,099+10.2%Added
Cornerstone Wealth Group, LLC11,831$3.14M0.55%+11,831New
Icon Wealth Partners, LLC11,766$3.12M0.33%+42+0.4%Added
Capital Square, LLC11,688$3.12M2.21%−375−3.1%Reduced
Kentucky Retirement Systems Insurance Trust Fund11,740$3.12M0.33%−94−0.8%Reduced
Snowden Capital Advisors LLC11,699$3.11M0.15%+44+0.4%Added
Dillon & Associates Inc11,635$3.08M0.59%+178+1.6%Added
Kayne Anderson Capital Advisors LP11,600$3.08M0.09%00.0%Unchanged
Kornitzer Capital Management Inc11,595$3.08M0.05%00.0%Unchanged
Ethic Inc.11,592$3.08M0.31%+1,769+18.0%Added
Ameritas Investment Partners, Inc.11,479$3.05M0.11%−82−0.7%Reduced
Foster & Motley Inc11,452$3.04M0.25%−597−5.0%Reduced
Lowell Blake & Associates Inc.11,396$3.02M1.40%+1,732+17.9%Added
Mechanics Bank Trust Department11,392$3.02M0.49%+616+5.7%Added
John G Ullman & Associates Inc11,320$3.00M0.41%−150−1.3%Reduced
Alpha Omega Wealth Management LLC11,273$2.99M0.49%−629−5.3%Reduced
Texas Yale Capital Corp.11,273$2.99M0.17%+88+0.8%Added
Quaero Capital S.A.11,250$2.99M2.05%+11,250New
Raymond James Trust N.A.11,092$2.94M0.10%+213+2.0%Added
Blueshift Asset Management, LLC11,061$2.94M0.16%+11,061New
Seeyond10,877$2.89M0.28%−1,226−10.1%Reduced
Cox Capital Mgt LLC10,856$2.88M1.94%+83+0.8%Added
JustInvest LLC10,825$2.87M0.26%+1,600+17.3%Added
Moneta Group Investment Advisors LLC10,783$2.86M0.13%−152−1.4%Reduced
Brewin Dolphin Ltd10,695$2.84M0.12%+1,091+11.4%Added
Argus Investors' Counsel, Inc.10,641$2.82M1.85%−5,023−32.1%Reduced
Iowa State Bank10,607$2.81M0.79%+346+3.4%Added
Herold Advisors, Inc.10,600$2.81M1.09%+10,600New
Citizens & Northern Corp10,582$2.81M1.08%−214−2.0%Reduced
Bailard, Inc.10,583$2.81M0.10%+200+1.9%Added
Alerus Financial NA10,512$2.79M0.25%−1,700−13.9%Reduced
Gryphon Financial Partners LLC10,510$2.79M0.65%−114−1.1%Reduced
Ieq Capital, LLC10,489$2.78M0.07%+1,512+16.8%Added
Massmutual Trust Co FSB10,441$2.77M0.11%+492+4.9%Added
Northcape Capital Pty Ltd10,435$2.77M0.29%−8,569−45.1%Reduced
Mayflower Financial Advisors, LLC10,093$2.75M0.37%+172+1.7%Added
Parallel Advisors, LLC10,368$2.75M0.11%+190+1.9%Added
KCM Investment Advisors LLC10,282$2.73M0.11%+391+4.0%Added
Oak Asset Management, LLC10,166$2.72M1.13%−10−0.1%Reduced
Mattern Wealth Management LLC10,229$2.71M0.91%−33−0.3%Reduced
Bridgeway Capital Management, LLC10,200$2.71M0.05%00.0%Unchanged
Shepherd Financial Partners LLC10,171$2.70M0.52%−1,447−12.5%Reduced
Everence Capital Management Inc10,172$2.70M0.22%00.0%Unchanged
Verde Capital Management10,112$2.68M1.12%+368+3.8%Added
Patten & Patten Inc10,060$2.67M0.20%+1,730+20.8%Added
Hixon Zuercher, LLC10,051$2.67M1.56%+251+2.6%Added
Jefferies Group LLC9,960$2.64M0.06%−10,977−52.4%Reduced
Coldstream Capital Management Inc10,877$2.63M0.13%−2,168−16.6%Reduced
Clearstead Advisors, LLC9,826$2.61M0.20%+371+3.9%Added
IMA Wealth, Inc.9,796$2.60M0.61%−29−0.3%Reduced
Caldwell Trust Co9,770$2.59M0.33%+2,359+31.8%Added
Terry L. Blaker9,734$2.58M0.16%+30+0.3%Added
Baldwin Investment Management, LLC9,636$2.56M0.45%+150+1.6%Added
Ingalls & Snyder LLC9,608$2.55M0.12%−504−5.0%Reduced
Meitav Dash Investments Ltd9,401$2.51M0.04%+46+0.5%Added
Alps Advisors Inc9,439$2.51M0.02%+2,440+34.9%Added