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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
Legacy Bridge, LLC6,406$1.70M0.98%00.0%Unchanged
Congress Asset Management Co6,385$1.70M0.01%+1,626+34.2%Added
Baystate Wealth Management LLC6,377$1.69M0.17%+29+0.5%Added
Lee Financial Co6,346$1.68M0.35%−1,172−15.6%Reduced
Atlas Private Wealth Management6,344$1.68M1.03%−287−4.3%Reduced
Highland Capital Management, LLC6,334$1.68M0.10%−561−8.1%Reduced
First Citizens Bank & Trust Co6,333$1.68M0.08%−17−0.3%Reduced
Total Clarity Wealth Management, Inc.6,334$1.68M0.80%+226+3.7%Added
Cardan Capital Partners, LLC6,330$1.68M0.19%00.0%Unchanged
Clear Street Markets LLC6,300$1.67M0.37%−7,382−54.0%Reduced
Cypress Capital, LLC6,286$1.67M0.21%−84−1.3%Reduced
Westhampton Capital, LLC6,280$1.67M1.14%−300−4.6%Reduced
Smithfield Trust Co6,263$1.66M0.11%00.0%Unchanged
Concentric Wealth Management, LLC6,220$1.65M0.51%−240−3.7%Reduced
Great Valley Advisor Group, Inc.6,217$1.65M0.11%−33−0.5%Reduced
SeaCrest Wealth Management, LLC6,200$1.65M0.20%+47+0.8%Added
Aft, Forsyth & Sober, LLC6,200$1.65M0.62%+1,000+19.2%Added
Ascent Wealth Partners, LLC6,159$1.64M0.31%+134+2.2%Added
Eudaimonia Partners, LLC6,099$1.62M0.29%−1,004−14.1%Reduced
Arrowstreet Capital, Limited Partnership6,100$1.62M0.00%+6,100New
Berkshire Bank6,051$1.61M0.39%+159+2.7%Added
SG Americas Securities, LLC6,037$1.60M0.01%−3,887−39.2%Reduced
RB Capital Management, LLC6,028$1.60M0.60%+224+3.9%Added
Teza Capital Management LLC6,010$1.59M0.77%+4,649+341.6%Added
Barbara Oil Co.6,000$1.59M0.75%00.0%Unchanged
Livforsakringsbolaget Skandia, Omsesidigt5,984$1.59M0.10%−1,400−19.0%Reduced
Nicolet Bankshares Inc5,977$1.59M0.41%+665+12.5%Added
Capital Investment Advisors, LLC5,876$1.56M0.05%−11−0.2%Reduced
Woodard & Co Asset Management Group Inc5,864$1.56M0.96%−302−4.9%Reduced
RKL Wealth Management LLC5,858$1.55M0.20%+89+1.5%Added
United Bank5,829$1.55M0.98%+256+4.6%Added
Integrated Wealth Concepts LLC5,821$1.54M0.05%+2,483+74.4%Added
Flagship Harbor Advisors, LLC5,695$1.54M0.17%00.0%Unchanged
D.A. Davidson & Co.5,784$1.53M0.02%−339−5.5%Reduced
Busey Wealth Management5,753$1.53M0.06%+129+2.3%Added
San Luis Wealth Advisors LLC5,751$1.53M0.85%+5,751New
McDonald Partners LLC5,724$1.52M0.36%+176+3.2%Added
Joel Isaacson & Co., LLC5,708$1.51M0.11%+163+2.9%Added
Apollon Wealth Management, LLC5,702$1.51M0.21%+4,175+273.4%Added
Delta Investment Management, LLC5,689$1.51M0.47%−1,258−18.1%Reduced
WBH Advisory Inc5,657$1.50M0.20%−10−0.2%Reduced
Pettee Investors, Inc.5,657$1.50M0.70%+2,800+98.0%Added
SWS Partners5,606$1.49M0.92%−69−1.2%Reduced
Formidable Asset Management, LLC5,601$1.49M0.28%+2,158+62.7%Added
Red Door Wealth Management, LLC5,588$1.48M0.57%+760+15.7%Added
Brighton Jones LLC5,576$1.48M0.08%+121+2.2%Added
Brandywine Oak Private Wealth LLC5,572$1.48M0.17%−15−0.3%Reduced
Cavalier Investments, LLC5,552$1.47M0.47%+5,552New
Townsend & Associates, Inc5,627$1.47M0.73%+328+6.2%Added
Werlinich Asset Management, LLC5,540$1.47M1.19%00.0%Unchanged
RVB Capital Management LLC5,500$1.46M1.05%−500−8.3%Reduced
Fulton Bank, N.A.5,501$1.46M0.07%+255+4.9%Added
Laurion Capital Management LP5,485$1.46M0.02%+5,485New
Assenagon Asset Management S.A.5,463$1.45M0.01%+4,240+346.7%Added
Page Arthur B5,430$1.44M1.07%+355+7.0%Added
Sheaff Brock Investment Advisors, LLC5,412$1.44M0.14%+63+1.2%Added
Ferguson Wellman Capital Management, Inc5,361$1.42M0.05%−50−0.9%Reduced
Signaturefd, LLC5,298$1.41M0.05%+599+12.7%Added
Mid Atlantic Financial Management Inc5,286$1.40M0.09%−84−1.6%Reduced
Centaurus Financial, Inc.5,273$1.40M0.12%−6,054−53.4%Reduced
Horizon Investments, LLC5,263$1.40M0.04%−1,916−26.7%Reduced
Fortem Financial Group, LLC5,222$1.39M0.70%+108+2.1%Added
Diversified Trust Co5,213$1.38M0.05%+420+8.8%Added
Wedbush Securities Inc5,195$1.38M0.07%−389−7.0%Reduced
Covey Capital Advisors, LLC5,194$1.38M1.10%––
Tranquility Partners, LLC5,190$1.38M0.70%+245+5.0%Added
Lido Advisors, LLC5,179$1.37M0.03%+1,809+53.7%Added
WMS Partners, LLC5,173$1.37M0.20%−269−4.9%Reduced
Somerset Trust Co5,165$1.37M0.56%−6−0.1%Reduced
First Hawaiian Bank5,145$1.36M0.06%+11+0.2%Added
First Mercantile Trust Co5,130$1.36M0.18%−1,549−23.2%Reduced
Conning Inc.5,062$1.34M0.04%−230−4.3%Reduced
BI Asset Management Fondsmaeglerselskab A/S5,007$1.33M0.05%+20.0%Added
Lockheed Martin Investment Management Co5,000$1.33M0.07%−500−9.1%Reduced
Supplemental Annuity Collective Trust of NJ5,000$1.33M0.44%00.0%Unchanged
Citizens Business Bank5,000$1.33M0.18%00.0%Unchanged
Pinnacle Wealth Management Group, Inc.4,985$1.32M0.99%00.0%Unchanged
Mirova4,986$1.32M0.17%+448+9.9%Added
Mather Group, LLC.4,928$1.31M0.03%+3,109+170.9%Added
Bluefin Capital Management, LLC4,920$1.31M0.15%−3,020−38.0%Reduced
Norway Savings Bank4,909$1.30M0.61%+100+2.1%Added
Ayalon Holdings Ltd.4,860$1.30M0.47%+4,180+614.7%Added
Credential Qtrade Securities Inc.4,894$1.30M0.10%+475+10.7%Added
Bank Julius Baer & Co. Ltd, Zurich4,881$1.30M0.01%+35+0.7%Added
River Wealth Advisors LLC4,881$1.29M0.22%+394+8.8%Added
Leonteq Securities AG4,850$1.29M0.07%+448+10.2%Added
Douglass Winthrop Advisors, LLC4,840$1.28M0.03%00.0%Unchanged
Tokio Marine Asset Management Co Ltd4,810$1.28M0.11%+620+14.8%Added
CSU Producer Resources, Inc.4,800$1.27M5.16%00.0%Unchanged
Equitable Trust Co4,792$1.27M0.08%−654−12.0%Reduced
Center for Financial Planning, Inc.4,783$1.27M0.31%00.0%Unchanged
Grove Bank & Trust4,770$1.27M0.27%−94−1.9%Reduced
Clarius Group, LLC4,759$1.26M0.11%+213+4.7%Added
Lederer & Associates Investment Counsel4,734$1.26M0.81%+374+8.6%Added
Gs Investments, Inc.4,713$1.25M0.66%+20.0%Added
Symphony Financial, Ltd. Co.4,624$1.25M0.44%−791−14.6%Reduced
Spinnaker Trust4,704$1.25M0.09%+100+2.2%Added
Mitchell & Pahl Private Wealth, LLC4,691$1.25M0.90%−35−0.7%Reduced
Moors & Cabot, Inc.4,653$1.24M0.08%+284+6.5%Added
Choate Investment Advisors4,633$1.23M0.08%+1,005+27.7%Added