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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 2025

Institutional positions in American Tower Corp as of Sep 30, 2025. 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
1,799
−24 vs. Q2 2025
Shares held
429.3M
−648.5K (−0.2%) vs. Q2 2025
Total value
$82.5B
−$12.4B (−13.1%) vs. Q2 2025
New holders
132
648 more added
Sold out
156
751 more reduced

29 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2025: 1,799 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 2025: $82.5B
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 2025

Shares, value and share of portfolio for each institution holding American Tower Corp; share changes are against Q2 2025.

Institutions holding AMT in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
BFSG, LLC225$43.3K0.00%+25+12.5%Added
Stone House Investment Management, LLC233$44.7K0.01%−23−9.0%Reduced
Cornerstone Planning Group LLC251$45.0K0.01%+141+128.2%Added
Syntax Research, Inc.236$45.4K0.03%+1+0.4%Added
Medallion Wealth Advisors, LLC238$45.8K0.02%−10−4.0%Reduced
Asset Dedication, LLC243$46.8K0.00%−1,135−82.4%Reduced
MCF Advisors LLC245$47.5K0.00%−23−8.6%Reduced
Bank of Jackson Hole Trust251$48.3K0.02%00.0%Unchanged
Kings Path Partners LLC259$49.8K0.02%00.0%Unchanged
McIlrath & Eck, LLC262$50.4K0.01%−17−6.1%Reduced
Versant Capital Management, Inc286$55.0K0.01%−81−22.1%Reduced
Financial Network Wealth Advisors LLC287$55.2K0.06%+40+16.2%Added
Truvestments Capital LLC296$56.9K0.01%−247−45.5%Reduced
MV Capital Management, Inc.297$57.1K0.01%−18−5.7%Reduced
Field & Main Bank300$57.7K0.02%00.0%Unchanged
Central Pacific Bank - Trust Division325$62.5K0.01%−3,444−91.4%Reduced
Wall Street Access Asset Management, LLC337$64.8K0.02%+337New
Evelyn Partners Asset Management Ltd340$65.4K0.01%+53+18.5%Added
Old Second National Bank of Aurora350$67.3K0.01%00.0%Unchanged
Salem Investment Counselors Inc350$67.9K0.00%+8+2.3%Added
1620 Investment Advisors, Inc.358$68.8K0.05%+36+11.2%Added
Brown, Lisle/Cummings, Inc.363$69.8K0.02%00.0%Unchanged
Dynamic Wealth Strategies, LLC367$70.6K0.05%+61+19.9%Added
Colonial Trust Advisors370$71.2K0.01%−7−1.9%Reduced
Tanglewood Legacy Advisors, LLC372$71.5K0.03%00.0%Unchanged
Guinness Asset Management LTD368$71.6K0.00%+368New
TCTC Holdings, LLC374$71.9K0.00%00.0%Unchanged
Ogorek Anthony Joseph375$72.0K0.02%+3+0.8%Added
Sit Investment Associates Inc375$72.0K0.00%+75+25.0%Added
Silvant Capital Management LLC382$73.5K0.00%00.0%Unchanged
Trust Co387$74.4K0.01%−24−5.8%Reduced
FSA Wealth Management LLC390$75.0K0.03%00.0%Unchanged
Sound Income Strategies, LLC407$75.3K0.00%−88−17.8%Reduced
Core Alternative Capital413$79.4K0.02%00.0%Unchanged
CoreCap Advisors, LLC416$80.0K0.00%−91−17.9%Reduced
Pension & Wealth Management Advisors, Inc.421$81.0K0.03%00.0%Unchanged
Fulcrum Asset Management LLP427$82.1K0.02%00.0%Unchanged
AllSquare Wealth Management LLC435$83.7K0.04%00.0%Unchanged
Sherman Asset Management, Inc.439$84.4K0.07%00.0%Unchanged
Financial Consulate, Inc445$85.6K0.01%+445New
Hoey Investments, Inc450$86.5K0.01%+450New
Hazlett, Burt & Watson, Inc.471$90.0K0.03%+105+28.7%Added
Arcadia Investment Management Corp475$91.4K0.01%00.0%Unchanged
Wiser Advisor Group LLC484$93.1K0.12%+484New
Harel Insurance Investments & Financial Services Ltd.487$94.0K0.00%+487New
Coastline Trust Co492$94.6K0.01%00.0%Unchanged
LRI Investments, LLC502$96.5K0.01%00.0%Unchanged
Byrne Asset Management LLC507$97.5K0.06%+25+5.2%Added
Harbor Capital Advisors, Inc.507$98.0K0.01%+36+7.6%Added
Investment Research & Advisory Group, Inc.504$98.1K0.03%+4+0.8%Added
Sachetta, LLC523$100.6K0.04%+12+2.3%Added
Tompkins Financial Corp538$103.5K0.01%00.0%Unchanged
Pin Oak Investment Advisors Inc537$104.2K0.07%−48−8.2%Reduced
Steigerwald, Gordon & Koch Inc.544$104.6K0.01%+544New
Promus Capital, LLC545$104.8K0.07%00.0%Unchanged
Bruce G. Allen Investments, LLC555$106.7K0.08%+18+3.4%Added
Annis Gardner Whiting Capital Advisors, LLC552$106.8K0.02%−196−26.2%Reduced
Pinney & Scofield, Inc.557$107.1K0.07%00.0%Unchanged
Rise Advisors, LLC559$107.6K0.04%+11+2.0%Added
Rialto Wealth Management, LLC570$109.6K0.03%−1−0.2%Reduced
Deseret Mutual Benefit Administrators601$115.6K0.05%+280+87.2%Added
FWL Investment Management, LLC606$116.5K0.03%−21−3.3%Reduced
Ameritas Advisory Services, LLC611$117.6K0.01%−586−49.0%Reduced
Webster Bank, N. A.636$122.3K0.01%−200−23.9%Reduced
Painted Porch Advisors LLC647$124.4K0.05%+99+18.1%Added
Montag A & Associates Inc650$126.0K0.01%00.0%Unchanged
Ameriflex Group, Inc.660$126.9K0.05%+296+81.3%Added
Harbour Investments, Inc.681$130.9K0.00%+169+33.0%Added
JFS Wealth Advisors, LLC682$131.2K0.01%+502+278.9%Added
Munich Reinsurance Co Stock Corp in Munich693$133.3K0.00%+693New
Millstone Evans Group, LLC694$133.5K0.08%00.0%Unchanged
SJS Investment Consulting Inc.711$136.7K0.02%+711New
Cromwell Holdings LLC730$141.6K0.08%−25−3.3%Reduced
Caitong International Asset Management Co., Ltd750$144.2K0.10%+668+814.6%Added
Elgethun Capital Management760$146.1K0.03%+1+0.1%Added
Strengthening Families & Communities, LLC670$147.6K0.03%+12+1.8%Added
Hemington Wealth Management773$148.0K0.02%+26+3.5%Added
St Germain D J Co Inc779$149.8K0.01%−116−13.0%Reduced
Muzinich & Co., Inc.779$149.8K0.06%00.0%Unchanged
Quarry LP782$150.4K0.04%+782New
Golden State Wealth Management, LLC801$154.1K0.02%+182+29.4%Added
Clear Street Markets LLC806$155.0K0.05%+491+155.9%Added
Thurston, Springer, Miller, Herd & Titak, Inc.829$159.4K0.32%−10,315−92.6%Reduced
ORG Partners LLC829$159.6K0.03%+12+1.5%Added
Arlington Trust Co LLC852$163.9K0.03%−100−10.5%Reduced
Geneos Wealth Management Inc.861$165.5K0.00%−1,583−64.8%Reduced
Larson Financial Group LLC873$167.9K0.01%−460−34.5%Reduced
General Partner, Inc.877$168.7K0.09%−1,514−63.3%Reduced
Virtus Investment Advisers, Inc.894$171.9K0.05%+105+13.3%Added
Concord Wealth Partners933$179.4K0.02%−440−32.0%Reduced
LOM Asset Management Ltd942$181.0K0.06%+129+15.9%Added
Piscataqua Savings Bank947$182.1K0.14%00.0%Unchanged
Broadwater Capital Management LLC966$185.8K0.14%−212,539−99.5%Reduced
Global X Japan Co., Ltd.998$191.9K0.02%−168−14.4%Reduced
Copeland Capital Management, LLC999$192.1K0.00%00.0%Unchanged
Blume Capital Management, Inc.1,004$193.1K0.04%00.0%Unchanged
Hollencrest Capital Management1,015$195.2K0.01%−25−2.4%Reduced
Parvin Asset Management, LLC1,017$195.6K0.17%+257+33.8%Added
Kelly Lawrence W & Associates Inc1,020$196.2K0.05%00.0%Unchanged
Canopy Partners, LLC1,036$199.2K0.07%−184−15.1%Reduced