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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
Ninety One SA (PTY) Ltd2,267$611.0K0.24%−3,519−60.8%Reduced
Prio Wealth Limited Partnership2,302$611.0K0.02%+144+6.7%Added
Aries Wealth Management2,300$610.0K0.26%+713+44.9%Added
West Oak Capital, LLC3,598$607.0K0.24%−90−2.4%Reduced
Pinnacle Associates Ltd2,273$603.0K0.01%+3+0.1%Added
J. W. Coons Advisors, LLC2,259$602.0K0.21%+703+45.2%Added
Johnson Financial Group, Inc.2,266$601.0K0.04%+189+9.1%Added
Edmond de Rothschild Holding S.A.2,255$598.0K0.01%+25+1.1%Added
Kelman-Lazarov, Inc.2,248$597.0K0.21%−29−1.3%Reduced
Ferris Capital, LLC2,191$597.0K0.13%+2,191New
Abbrea Capital, LLC2,226$594.0K0.09%−25−1.1%Reduced
Thomas White International Ltd2,213$587.0K0.09%00.0%Unchanged
Foundations Investment Advisors, LLC2,215$586.0K0.03%+464+26.5%Added
Whalerock Point Partners, LLC2,202$584.0K0.23%+10.0%Added
Orion Portfolio Solutions, LLC2,197$583.0K0.02%+360+19.6%Added
Calamos Wealth Management LLC2,184$580.0K0.05%−1,663−43.2%Reduced
Platform Technology Partners2,181$579.0K0.26%−260−10.7%Reduced
Glenview Trust Co2,181$579.0K0.02%00.0%Unchanged
Washington Trust Bank2,173$577.0K0.07%−543−20.0%Reduced
Platte River Wealth Advisors, LLC2,169$576.0K0.21%+40+1.9%Added
Summit Financial, LLC2,141$571.1K0.05%+1,256+141.9%Added
Altfest L J & Co Inc2,148$570.0K0.12%−3,640−62.9%Reduced
Hilltop Holdings Inc.2,147$570.0K0.06%+84+4.1%Added
Ategra Capital Management, LLC2,137$567.4K0.29%00.0%Unchanged
Stonnington Group, LLC2,162$567.0K0.13%00.0%Unchanged
Baldwin Brothers Inc2,129$565.0K0.06%00.0%Unchanged
AGF Investments LLC2,117$562.0K0.06%+396+23.0%Added
Sequent Asset Management, LLC2,096$556.0K0.32%+76+3.8%Added
Allen Capital Group, LLC2,082$553.0K0.11%00.0%Unchanged
Independent Financial Group, LLC2,071$549.8K0.06%+276+15.4%Added
D.B. Root & Company, LLC2,066$548.0K0.21%−314−13.2%Reduced
Newman Dignan & Sheerar, Inc.2,063$548.0K0.18%00.0%Unchanged
Ithaka Group LLC2,050$544.0K0.07%00.0%Unchanged
Enterprise Financial Services Corp2,044$542.0K0.07%+19+0.9%Added
First Financial Corp2,038$541.0K0.36%−91−4.3%Reduced
Cutler Group LP2,034$539.0K0.04%−610−23.1%Reduced
Ahrens Investment Partners LLC2,030$539.0K0.26%−190−8.6%Reduced
Empowered Funds, LLC2,023$537.0K0.07%+846+71.9%Added
Mairs & Power Inc2,020$536.0K0.01%−758−27.3%Reduced
Endurance Wealth Management, Inc.2,018$536.0K0.06%00.0%Unchanged
Financial Consulate, Inc2,005$532.0K0.19%+169+9.2%Added
Roof Eidam & Maycock2,002$531.0K0.20%00.0%Unchanged
Bluesphere Advisors, LLC2,000$531.0K0.51%00.0%Unchanged
Sound View Wealth Advisors Group, LLC1,996$530.0K0.11%−32−1.6%Reduced
Cliftonlarsonallen Wealth Advisors, LLC1,987$527.0K0.02%+51+2.6%Added
Coyle Financial Counsel LLC1,980$526.0K0.31%+1,980New
Tributary Capital Management, LLC1,970$523.0K0.04%00.0%Unchanged
Eii Capital Management, Inc.1,971$523.0K0.25%+55+2.9%Added
Howard Capital Management Group, LLC1,968$522.0K0.05%00.0%Unchanged
Dynamic Technology Lab Private Ltd1,966$522.0K0.06%+1,966New
Institute for Wealth Management, LLC.1,964$521.0K0.09%−84−4.1%Reduced
Martingale Asset Management L P1,961$521.0K0.01%00.0%Unchanged
Salem Investment Counselors Inc1,959$520.0K0.03%−130−6.2%Reduced
Covenant Multifamily Offices, LLC1,960$519.0K0.09%+11+0.6%Added
Tiemann Investment Advisors, LLC1,944$516.0K0.25%+3+0.2%Added
Archer Investment Corp1,940$514.9K0.19%+100+5.4%Added
Sheets Smith Wealth Management1,936$514.0K0.07%+2+0.1%Added
Farmers & Merchants Investments Inc1,935$514.0K0.02%+797+70.0%Added
Bayesian Capital Management, LP1,937$514.0K0.15%+1,937New
Ritholtz Wealth Management1,935$513.0K0.04%+267+16.0%Added
Cutter & CO Brokerage, Inc.1,929$512.0K0.12%+315+19.5%Added
Baillie Gifford & Co1,930$512.0K0.00%+1,930New
Rathbone Brothers plc1,922$510.0K0.01%+650+51.1%Added
Wealth Alliance Advisory Group, LLC1,917$509.0K0.25%−2−0.1%Reduced
Procyon Private Wealth Partners, LLC1,904$505.0K0.13%+96+5.3%Added
Tufton Capital Management1,905$505.0K0.09%+320+20.2%Added
Quilter Plc1,898$504.0K0.01%−142−7.0%Reduced
Coastline Trust Co1,900$504.0K0.06%−20−1.0%Reduced
Caxton Associates LP1,883$500.0K0.07%+1,883New
Fundamentun, LLC1,882$500.0K0.09%+1,882New
Assetmark, Inc1,877$498.0K0.00%−279−12.9%Reduced
Bard Financial Services, Inc.1,875$498.0K0.04%+50+2.7%Added
Systematic Alpha Investments, LLC1,764$497.0K0.02%−110−5.9%Reduced
CoreFirst Bank & Trust1,865$495.0K0.34%00.0%Unchanged
Green Harvest Asset Management LLC1,864$495.0K0.08%+158+9.3%Added
Aj Wealth Strategies, LLC1,863$494.0K0.03%00.0%Unchanged
Lokken Investment Group LLC1,856$493.0K0.39%−18−1.0%Reduced
Coastal Capital Group, Inc.1,852$492.0K0.12%+8+0.4%Added
Value Partners Investments Inc.1,865$492.0K0.04%+177+10.5%Added
Strategic Investment Advisors1,845$490.0K0.11%+197+12.0%Added
Avalon Investment & Advisory1,839$488.0K0.01%+604+48.9%Added
Valmark Advisers, Inc.1,837$487.0K0.01%−58−3.1%Reduced
Ipswich Investment Management Co., Inc.1,820$483.0K0.12%00.0%Unchanged
Grandfield & Dodd, LLC1,799$480.0K0.03%+241+15.5%Added
Edgestream Partners, L.P.1,806$479.0K0.03%−16,721−90.3%Reduced
Harvest Investment Services, LLC1,805$479.0K0.20%+212+13.3%Added
South Shore Capital Advisors1,798$477.0K0.88%−73−3.9%Reduced
Valley Brook Capital Group1,800$477.0K0.47%00.0%Unchanged
Twin Focus Capital Partners, LLC1,792$476.0K0.11%+13+0.7%Added
Arkadios Wealth Advisors1,789$475.0K0.07%+201+12.7%Added
CWM Advisors, LLC1,781$473.0K0.06%−30,290−94.4%Reduced
9258 Wealth Management, LLC1,783$473.0K0.13%+119+7.2%Added
Continuum Advisory, LLC1,780$472.0K0.13%+24+1.4%Added
David Loasby1,763$471.0K0.06%+415+30.8%Added
Cim Investment Mangement Inc1,757$466.0K0.15%−1,791−50.5%Reduced
Quest Capital Management Inc1,754$466.0K0.09%+114+7.0%Added
Orrstown Financial Services Inc1,753$465.0K0.74%−769−30.5%Reduced
Menard Financial Group LLC1,748$464.0K0.41%−22−1.2%Reduced
Philadelphia Trust Co1,744$463.0K0.03%+16+0.9%Added
GYL Financial Synergies, LLC1,741$462.0K0.24%−14−0.8%Reduced