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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 2021

Institutional positions in American Tower Corp as of Mar 31, 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
1,613
No complete 13F data for Q4 2020
Shares held
400.8M
No complete 13F data for Q4 2020
Total value
$95.8B
No complete 13F data for Q4 2020

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 2021: 1,613 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 2021: $95.8B
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 2021

Shares, value and share of portfolio for each institution holding American Tower Corp.

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding AMT in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Bamco Inc186,555$44.6M0.11%––
Lasalle Investment Management Securities LLC184,179$44.0M1.39%––
Reaves W H & Co Inc179,347$42.9M1.49%––
Fifth Third Bancorp177,834$42.5M0.20%––
Teacher Retirement System of Texas174,469$41.7M0.23%––
Adelante Capital Management LLC169,137$40.4M2.54%––
Macquarie Group Ltd160,872$38.5M0.05%––
King Luther Capital Management Corp158,415$37.9M0.20%––
Klingenstein Fields & Co LP156,305$37.4M1.69%––
American International Group, Inc.153,462$36.7M0.15%––
Securian Asset Management, Inc152,179$36.4M0.79%––
B.S. Pension Fund Trustee Ltd acting for the British Steel Pension Fund142,000$36.2M8.08%––
Guggenheim Capital LLC150,013$35.9M0.24%––
Clal Insurance Enterprises Holdings Ltd149,892$35.8M0.41%––
Comerica Bank139,987$35.6M0.21%––
Heard Capital LLC147,990$35.4M9.96%––
Polar Asset Management Partners Inc.147,852$35.3M0.53%––
Parallax Volatility Advisers, L.P.147,246$35.2M0.31%––
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.145,196$34.7M0.23%––
Aureus Asset Management, LLC145,091$34.7M2.69%––
EP Wealth Advisors, LLC144,005$34.4M1.09%––
Dearborn Partners LLC142,986$34.2M1.46%––
Barton Investment Management140,226$33.5M3.12%––
Thrivent Financial for Lutherans139,193$33.3M0.07%––
United Capital Financial Advisers, LLC136,460$32.6M0.18%––
Baird Financial Group, Inc.136,223$32.6M0.09%––
Penserra Capital Management LLC134,226$32.1M0.59%––
Robeco Institutional Asset Management B.V.132,608$31.7M0.08%––
LPL Financial LLC132,497$31.7M0.04%––
Rockefeller Capital Management L.P.130,977$31.3M0.21%––
Tiaa, FSB130,891$31.3M0.11%––
Brown Brothers Harriman & Co130,545$31.2M0.20%––
Greenleaf Trust129,737$31.0M0.41%––
Calamos Advisors LLC128,741$30.8M0.18%––
Arizona State Retirement System125,181$29.9M0.26%––
Washington Trust Co123,886$29.6M0.91%––
Schroder Investment Management Group122,854$29.4M0.04%––
MUFG Americas Holdings Corp121,439$29.0M0.57%––
Carnegie Capital Asset Management, LLC121,128$29.0M1.21%––
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund120,025$28.7M0.26%––
Segantii Capital Management Ltd120,000$28.7M1.25%––
Advisor Group Holdings, Inc.119,452$28.6M0.07%––
Zurcher Kantonalbank (Zurich Cantonalbank)119,459$28.6M0.17%––
ProShare Advisors LLC117,653$28.1M0.09%––
Teachers Retirement System of the State of Kentucky114,609$27.4M0.27%––
Commonwealth Equity Services, LLC114,161$27.3M0.08%––
KBC Group NV113,828$27.2M0.11%––
HighTower Advisors, LLC113,010$27.0M0.09%––
Trillium Asset Management, LLC112,459$26.9M0.85%––
Motley Fool Wealth Management, LLC111,609$26.7M1.20%––
Gateway Investment Advisers LLC111,606$26.7M0.29%––
State of Michigan Retirement System111,495$26.7M0.17%––
Boston Financial Mangement LLC111,131$26.6M1.17%––
Boston Family Office LLC110,447$26.4M1.98%––
Handelsbanken Fonder AB108,967$26.1M0.15%––
MetLife Investment Management105,896$25.3M0.23%––
Cohen Klingenstein LLC103,734$24.8M1.14%––
Natixis103,611$24.6M0.08%––
Raub Brock Capital Management LP102,156$24.4M3.85%––
CIBC World Markets Inc.101,325$24.2M0.07%––
Worldquant Millennium Advisors LLC101,165$24.2M0.51%––
Campbell Newman Asset Management Inc100,474$24.0M2.53%––
RMB Capital Management, LLC100,402$24.0M0.89%––
Whittier Trust Co99,696$23.8M0.46%––
Vestcor Inc99,411$23.8M0.89%––
Natixis Advisors, L.P.97,627$23.3M0.12%––
Gulf International Bank (UK) Ltd96,841$23.1M0.32%––
Barr E S & Co96,513$23.1M1.81%––
Mackay Shields LLC96,222$23.0M0.17%––
Janney Montgomery Scott LLC94,045$22.5M0.11%––
DekaBank Deutsche Girozentrale93,504$22.2M0.07%––
Baskin Financial Services Inc.92,576$22.1M2.28%––
EULAV Asset Management90,600$21.7M0.58%––
Employees Retirement System of Texas89,500$21.4M0.28%––
Xponance, Inc.88,870$21.2M0.45%––
Financial Counselors Inc88,861$21.2M0.49%––
Bank of Nova Scotia86,151$20.6M0.04%––
Forsta Ap-Fonden84,800$20.3M0.28%––
Utah Retirement Systems84,698$20.2M0.28%––
Nomura Asset Management Co Ltd84,346$20.2M0.13%––
Sit Investment Associates Inc83,564$20.0M0.52%––
Claar Advisors LLC83,320$19.9M6.93%––
Stock Yards Bank & Trust Co82,970$19.8M1.34%––
Middleton & Co Inc81,645$19.5M2.20%––
Fulton Breakefield Broenniman LLC79,880$19.1M1.77%––
Agf Investments Inc.78,921$18.9M0.15%––
Metropolitan Life Insurance Co77,449$18.5M0.28%––
Gilder Gagnon Howe & Co LLC76,423$18.3M0.10%––
Spire Wealth Management76,384$18.1M0.48%––
Heritage Investors Management Corp75,700$18.1M0.80%––
Boston Private Wealth LLC75,506$18.1M0.25%––
MAI Capital Management74,259$17.8M0.40%––
Texas Permanent School Fund74,204$17.7M0.22%––
British Columbia Investment Management Corp72,917$17.4M0.13%––
Connor, Clark & Lunn Investment Management Ltd.72,183$17.3M0.10%––
Vontobel Holding Ltd.71,935$17.2M0.13%––
Cullen/Frost Bankers, Inc.71,913$17.2M0.38%––
Kings Point Capital Management71,539$17.1M1.69%––
Destination Wealth Management70,960$17.0M0.70%––
Pittenger & Anderson Inc70,496$16.9M0.91%––