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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
Ieq Capital, LLC10,489$2.78M0.07%+1,512+16.8%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
Citizens & Northern Corp10,582$2.81M1.08%−214−2.0%Reduced
Bailard, Inc.10,583$2.81M0.10%+200+1.9%Added
Herold Advisors, Inc.10,600$2.81M1.09%+10,600New
Iowa State Bank10,607$2.81M0.79%+346+3.4%Added
Argus Investors' Counsel, Inc.10,641$2.82M1.85%−5,023−32.1%Reduced
Brewin Dolphin Ltd10,695$2.84M0.12%+1,091+11.4%Added
Moneta Group Investment Advisors LLC10,783$2.86M0.13%−152−1.4%Reduced
JustInvest LLC10,825$2.87M0.26%+1,600+17.3%Added
Cox Capital Mgt LLC10,856$2.88M1.94%+83+0.8%Added
Seeyond10,877$2.89M0.28%−1,226−10.1%Reduced
Blueshift Asset Management, LLC11,061$2.94M0.16%+11,061New
Raymond James Trust N.A.11,092$2.94M0.10%+213+2.0%Added
Quaero Capital S.A.11,250$2.99M2.05%+11,250New
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
John G Ullman & Associates Inc11,320$3.00M0.41%−150−1.3%Reduced
Mechanics Bank Trust Department11,392$3.02M0.49%+616+5.7%Added
Lowell Blake & Associates Inc.11,396$3.02M1.40%+1,732+17.9%Added
Foster & Motley Inc11,452$3.04M0.25%−597−5.0%Reduced
Ameritas Investment Partners, Inc.11,479$3.05M0.11%−82−0.7%Reduced
Kornitzer Capital Management Inc11,595$3.08M0.05%00.0%Unchanged
Ethic Inc.11,592$3.08M0.31%+1,769+18.0%Added
Kayne Anderson Capital Advisors LP11,600$3.08M0.09%00.0%Unchanged
Dillon & Associates Inc11,635$3.08M0.59%+178+1.6%Added
Snowden Capital Advisors LLC11,699$3.11M0.15%+44+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
Icon Wealth Partners, LLC11,766$3.12M0.33%+42+0.4%Added
Cornerstone Wealth Group, LLC11,831$3.14M0.55%+11,831New
Strategic Capital Advisers, Inc.11,862$3.15M2.45%+1,099+10.2%Added
Private Trust Co NA11,892$3.16M0.46%−163−1.4%Reduced
Beech Hill Advisors, Inc.11,985$3.18M1.32%−115−1.0%Reduced
World Asset Management Inc12,005$3.19M0.32%−788−6.2%Reduced
Pinebridge Investments, L.P.12,085$3.21M0.04%−8−0.1%Reduced
Jacobs Levy Equity Management, Inc12,112$3.21M0.02%+11,105+1,102.8%Added
HCR Wealth Advisors12,152$3.23M0.54%+514+4.4%Added
Telos Capital Management, Inc.12,197$3.24M0.44%−100−0.8%Reduced
Winfield Associates, Inc.12,217$3.24M1.20%+65+0.5%Added
Earnest Partners LLC12,280$3.26M0.02%−662−5.1%Reduced
Greenline Partners, LLC12,295$3.26M0.68%−314−2.5%Reduced
Howe & Rusling Inc12,357$3.28M0.41%+537+4.5%Added
Fuller & Thaler Asset Management, Inc.12,410$3.29M0.02%+3,100+33.3%Added
Regions Financial Corp12,415$3.30M0.03%+40+0.3%Added
Wetherby Asset Management Inc12,606$3.35M0.21%+86+0.7%Added
Buckingham Strategic Wealth, LLC12,671$3.36M0.07%+138+1.1%Added
Cape Cod Five Cents Savings Bank12,690$3.37M0.35%+241+1.9%Added
IBM Retirement Fund12,743$3.38M0.26%+27+0.2%Added
Twinbeech Capital LP12,810$3.40M0.24%+5,222+68.8%Added
Welch & Forbes LLC12,873$3.42M0.06%−7−0.1%Reduced
Phocas Financial Corp.12,922$3.43M0.43%+126+1.0%Added
Winton Group Ltd12,954$3.44M0.19%+8,118+167.9%Added
Perpetual Investment Management Ltd13,040$3.46M0.44%+1,526+13.3%Added
Benjamin F. Edwards & Company, Inc.13,090$3.47M0.17%−827−5.9%Reduced
Silvercrest Asset Management Group LLC13,094$3.48M0.02%−1,150−8.1%Reduced
Bessemer Securities LLC13,158$3.49M1.19%+2,508+23.5%Added
Cetera Investment Advisers13,187$3.50M0.06%+629+5.0%Added
Enterprise Bank & Trust Co13,302$3.53M1.39%−216−1.6%Reduced
Hennion & Walsh Asset Management, Inc.13,342$3.54M0.19%+5,126+62.4%Added
Nixon Peabody Trust Co13,352$3.54M1.28%+1,167+9.6%Added
GSI Capital Advisors LLC25,232$3.55M1.77%+7,462+42.0%Added
We Are One Seven, LLC12,630$3.56M0.45%+820+6.9%Added
Hemenway Trust Co LLC13,424$3.56M0.36%+245+1.9%Added
TD Private Client Wealth LLC13,443$3.57M0.15%−153−1.1%Reduced
Rossmore Private Capital13,543$3.59M0.62%+950+7.5%Added
Kingsview Wealth Management, LLC13,666$3.63M0.17%+498+3.8%Added
Hotaling Investment Management, LLC13,713$3.64M1.51%+10+0.1%Added
Miller Howard Investments Inc13,817$3.67M0.15%−9,075−39.6%Reduced
Sterling Investment Advisors, Ltd.13,864$3.68M1.09%−99−0.7%Reduced
Central Trust Co13,904$3.69M0.13%+593+4.5%Added
Cigna Investments Inc13,974$3.71M0.28%−243−1.7%Reduced
Lazard Asset Management LLC13,982$3.71M0.00%−20,521−59.5%Reduced
Condor Capital Management13,997$3.71M0.40%+243+1.8%Added
Transcend Wealth Collective, LLC13,028$3.74M0.34%−119−0.9%Reduced
Autus Asset Management, LLC14,098$3.74M0.41%+713+5.3%Added
Y-Intercept (Hong Kong) Ltd14,199$3.77M0.69%+14,199New
Homrich & Berg14,272$3.79M0.08%+990+7.5%Added
Capital International Sarl14,403$3.82M0.34%−662−4.4%Reduced
Slow Capital, Inc.14,408$3.82M0.70%−20−0.1%Reduced
Anson Funds Management LP14,520$3.85M0.48%−3,000−17.1%Reduced
M. Kulyk & Associates, LLC14,539$3.86M1.23%+659+4.7%Added
Perkins Coie Trust Co14,580$3.87M1.21%+20+0.1%Added
Consolidated Investment Group LLC14,700$3.90M0.61%00.0%Unchanged
Bragg Financial Advisors, Inc14,754$3.92M0.25%+750+5.4%Added
De Burlo Group Inc14,804$3.93M0.64%−116−0.8%Reduced
Bridgewater Associates, LP14,889$3.95M0.02%+14,889New
Brown Miller Wealth Management, LLC15,018$3.99M2.50%+345+2.4%Added
Simmons Bank15,028$3.99M0.29%+780+5.5%Added
Cetera Advisor Networks LLC15,074$4.00M0.05%−958−6.0%Reduced
Spire Wealth Management15,079$4.00M0.11%−401−2.6%Reduced
Pathstone Family Office, LLC15,019$4.00M0.12%+1,420+10.4%Added
Avitas Wealth Management LLC15,192$4.03M0.73%−241−1.6%Reduced
Park Avenue Securities LLC15,219$4.04M0.08%−621−3.9%Reduced
Sand Hill Global Advisors, LLC15,240$4.04M0.25%−230−1.5%Reduced
Stevens Capital Management LP15,308$4.06M1.70%+15,308New
Schonfeld Strategic Advisors LLC15,405$4.09M0.05%−51,336−76.9%Reduced
Panagora Asset Management Inc15,442$4.10M0.02%−49−0.3%Reduced
Veritable, L.P.15,478$4.11M0.07%+200+1.3%Added