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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, Q1 2026

Institutional positions in American Tower Corp as of Mar 31, 2026. 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
1,760
+9 vs. Q4 2025
Shares held
431.5M
+28.6M (+7.1%) vs. Q4 2025
Total value
$74.4B
+$10.2B (+15.9%) vs. Q4 2025
New holders
155
725 more added
Sold out
146
651 more reduced

30 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2026: 1,760 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 heldQ1 2026: $74.4B
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, Q1 2026

Shares, value and share of portfolio for each institution holding American Tower Corp; share changes are against Q4 2025.

Institutions holding AMT in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Hager Investment Management Services, LLC680$117.4K0.06%−1,671−71.1%Reduced
Bayforest Capital Ltd680$117.4K0.13%−724−51.6%Reduced
Ballast Advisors LLC691$119.3K0.03%+691New
Millstone Evans Group, LLC694$119.8K0.07%00.0%Unchanged
Pinnacle Wealth Planning Services, Inc.737$127.2K0.01%−162−18.0%Reduced
Golden State Wealth Management, LLC739$127.7K0.01%−8−1.1%Reduced
Geneos Wealth Management Inc.769$132.7K0.00%−82−9.6%Reduced
Capital Advisors, Ltd. LLC781$135.0K0.02%+26+3.4%Added
Copeland Capital Management, LLC790$136.3K0.00%−209−20.9%Reduced
Westfuller Advisors, LLC819$141.4K0.06%−30−3.5%Reduced
Blume Capital Management, Inc.825$142.4K0.02%00.0%Unchanged
LRI Investments, LLC886$152.9K0.01%+484+120.4%Added
Paladin Advisory Group, LLC911$157.2K0.12%−326−26.4%Reduced
Centaurus Financial, Inc.922$159.0K0.01%−14−1.5%Reduced
Parallax Volatility Advisers, L.P.912$159.4K0.01%+912New
Piscataqua Savings Bank947$163.4K0.11%00.0%Unchanged
Global X Japan Co., Ltd.987$170.3K0.01%+208+26.7%Added
Trust Co989$170.7K0.02%−14−1.4%Reduced
Cassaday & Co Wealth Management LLC1,006$173.6K0.00%−549−35.3%Reduced
Hollencrest Capital Management1,015$175.2K0.01%00.0%Unchanged
Kelly Lawrence W & Associates Inc1,020$176.0K0.05%00.0%Unchanged
Evelyn Partners Investment Management (Europe) Ltd1,058$182.6K0.06%00.0%Unchanged
Virtus Investment Advisers, Inc.1,066$184.0K0.05%+124+13.2%Added
Montag A & Associates Inc1,069$184.5K0.01%+196+22.5%Added
Larson Financial Group LLC1,081$186.6K0.01%+38+3.6%Added
CoreFirst Bank & Trust1,083$186.9K0.10%00.0%Unchanged
Colonial Trust Co1,088$187.7K0.03%+33+3.1%Added
Guinness Asset Management LTD1,092$188.5K0.00%+467+74.7%Added
Tiemann Investment Advisors, LLC1,092$188.5K0.07%+1,092New
Rexford Capital Inc1,129$194.8K0.14%+7+0.6%Added
Cary Street Partner Investment Advisory LLC1,152$198.8K0.05%−8−0.7%Reduced
LOM Asset Management Ltd1,152$198.8K0.06%+146+14.5%Added
Edmond de Rothschild Holding S.A.1,159$200.0K0.00%+115+11.0%Added
Centerpoint Advisors, LLC1,165$201.0K0.07%00.0%Unchanged
StrongBox Wealth, LLC1,165$201.1K0.06%−60−4.9%Reduced
Victory Financial Group, LLC1,169$201.7K0.02%+1,169New
Indie Asset Partners, LLC1,175$202.8K0.23%−234−16.6%Reduced
Northside Capital Management, LLC1,180$203.6K0.02%00.0%Unchanged
Uhlmann Price Securities, LLC1,184$204.3K0.01%+14+1.2%Added
Castle Rock Wealth Management, LLC1,178$204.6K0.04%−10−0.8%Reduced
Caxton Associates LLP1,186$204.7K0.00%−1,425−54.6%Reduced
Castle Wealth Management LLC1,187$204.8K0.07%+1+0.1%Added
Atlas Brown,Inc.1,187$204.9K0.06%+16+1.4%Added
Keynote Financial Services LLC1,188$205.0K0.11%+1,188New
Viawealth, LLC1,189$205.2K0.11%+1,189New
Capital Wealth Alliance, LLC1,196$206.4K0.09%−550−31.5%Reduced
National Philanthropic Trust1,196$206.4K0.00%+1,196New
Marex Group plc1,199$206.9K0.00%+1,199New
Analyst IMS Investment Management Services Ltd.1,198$207.0K0.01%+1,198New
Alps Advisors Inc1,200$207.1K0.00%−10−0.8%Reduced
SMH Capital Advisors Inc1,200$207.1K0.59%00.0%Unchanged
Catalyst Capital Advisors LLC1,200$207.1K0.00%00.0%Unchanged
Klingman & Associates, LLC1,202$207.4K0.01%+1,202New
Tranquility Partners, LLC1,203$207.5K0.08%+13+1.1%Added
Enterprise Financial Services Corp1,212$209.2K0.11%−27−2.2%Reduced
New Wave Wealth Advisors LLC1,217$210.0K0.07%+1,217New
Novem Group1,219$210.4K0.02%−312−20.4%Reduced
Canopy Partners, LLC1,219$210.4K0.07%+55+4.7%Added
SHP Wealth Management1,228$211.9K0.02%+27+2.2%Added
William Allan, LLC1,229$212.1K0.13%+2+0.2%Added
Drucker Wealth 3.0, LLC1,229$212.1K0.04%−389−24.0%Reduced
Weatherly Asset Management L. P.1,232$212.6K0.02%−2−0.2%Reduced
Capital Asset Advisory Services LLC1,171$212.7K0.01%−615−34.4%Reduced
Boothbay Fund Management, LLC1,234$213.0K0.01%−2,050−62.4%Reduced
Cetera Trust Company, N.A1,235$213.1K0.12%−90−6.8%Reduced
a16z Perennial Management, L.P.1,237$213.5K0.02%00.0%Unchanged
Hutner Capital Management Inc1,237$213.5K0.09%−231−15.7%Reduced
Aventura Private Wealth, LLC1,241$214.3K0.08%−179−12.6%Reduced
AGH Wealth Advisors, LLC1,242$214.3K0.16%+86+7.4%Added
Brucke Financial, Inc.1,244$214.7K0.11%+1,244New
Norway Savings Bank1,247$215.2K0.10%−95−7.1%Reduced
Roman Butler Fullerton & Co1,223$215.5K0.06%+12+1.0%Added
KCM Investment Advisors LLC1,251$216.0K0.01%−646−34.1%Reduced
East Coast Asset Management, LLC.1,253$216.3K0.07%00.0%Unchanged
Yelin Lapidot Holdings Management Ltd.1,256$216.8K0.05%−151−10.7%Reduced
Blue Chip Partners, Inc.1,260$217.4K0.02%+87+7.4%Added
TIAA Wealth Investment Management LLC1,270$219.2K0.00%+1,270New
Grimes & Company, Inc.1,272$219.5K0.01%+75+6.3%Added
Csenge Advisory Group1,273$219.7K0.01%−226−15.1%Reduced
Onefund, LLC1,286$220.0K0.14%−63−4.7%Reduced
Busey Wealth Management1,275$220.0K0.01%−324−20.3%Reduced
South Plains Financial, Inc.1,281$221.1K0.13%+142+12.5%Added
Texas Bank & Trust Co1,281$221.1K0.08%−40−3.0%Reduced
Kingswood Wealth Advisors, LLC1,282$221.2K0.01%+139+12.2%Added
Patrick M Sweeney & Associates, Inc1,282$221.2K0.14%−40−3.0%Reduced
Advisors Management Group Inc1,291$222.0K0.04%+23+1.8%Added
Regal Investment Advisors LLC1,287$222.0K0.01%+1,287New
Osborne Partners Capital Management, LLC1,300$224.4K0.01%00.0%Unchanged
Bahl & Gaynor Inc1,301$224.5K0.00%−41−3.1%Reduced
Advisortrust Partners, LLC1,302$224.7K0.09%+1,302New
Grant Street Asset Management, Inc.1,304$225.0K0.04%−55−4.0%Reduced
Platform Technology Partners1,305$225.2K0.04%−12−0.9%Reduced
OneAscent Wealth Management LLC1,307$225.6K0.07%−18−1.4%Reduced
Biltmore Family Office, LLC1,314$226.8K0.03%+1,314New
Cape Investment Advisory, Inc.1,317$227.3K0.08%−16−1.2%Reduced
Nelson, Van Denburg & Campbell Wealth Management Group, LLC1,326$228.9K0.01%+1,326New
Paradigm Financial Partners, LLC1,335$230.4K0.04%+1,335New
Evermay Wealth Management LLC1,338$230.9K0.03%−176−11.6%Reduced
Horizon Bancorp Inc1,336$231.0K0.11%+37+2.8%Added
Accuvest Global Advisors1,337$231.0K0.22%+114+9.3%Added