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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
Wedge Capital Management L L P65,915$15.8M0.19%––
Prospect Capital Advisors, LLC66,445$15.9M6.99%––
Northwestern Mutual Wealth Management Co66,823$16.0M0.03%––
Fort Washington Investment Advisors Inc66,834$16.0M0.15%––
Bath Savings Trust Co67,169$16.1M2.05%––
Candriam Luxembourg S.C.A.74,876$16.1M0.13%––
Williams Jones Wealth Management, LLC.67,606$16.2M0.25%––
Oppenheimer Asset Management Inc.67,707$16.2M0.25%––
Braun Stacey Associates Inc67,990$16.3M0.68%––
Chilton Capital Management LLC68,134$16.3M1.10%––
Chicago Partners Investment Group LLC65,250$16.5M1.36%––
Oppenheimer & Co Inc70,227$16.8M0.34%––
Pittenger & Anderson Inc70,496$16.9M0.91%––
Destination Wealth Management70,960$17.0M0.70%––
Kings Point Capital Management71,539$17.1M1.69%––
Cullen/Frost Bankers, Inc.71,913$17.2M0.38%––
Vontobel Holding Ltd.71,935$17.2M0.13%––
Connor, Clark & Lunn Investment Management Ltd.72,183$17.3M0.10%––
British Columbia Investment Management Corp72,917$17.4M0.13%––
Texas Permanent School Fund74,204$17.7M0.22%––
MAI Capital Management74,259$17.8M0.40%––
Boston Private Wealth LLC75,506$18.1M0.25%––
Heritage Investors Management Corp75,700$18.1M0.80%––
Spire Wealth Management76,384$18.1M0.48%––
Gilder Gagnon Howe & Co LLC76,423$18.3M0.10%––
Metropolitan Life Insurance Co77,449$18.5M0.28%––
Agf Investments Inc.78,921$18.9M0.15%––
Fulton Breakefield Broenniman LLC79,880$19.1M1.77%––
Middleton & Co Inc81,645$19.5M2.20%––
Stock Yards Bank & Trust Co82,970$19.8M1.34%––
Claar Advisors LLC83,320$19.9M6.93%––
Sit Investment Associates Inc83,564$20.0M0.52%––
Nomura Asset Management Co Ltd84,346$20.2M0.13%––
Utah Retirement Systems84,698$20.2M0.28%––
Forsta Ap-Fonden84,800$20.3M0.28%––
Bank of Nova Scotia86,151$20.6M0.04%––
Financial Counselors Inc88,861$21.2M0.49%––
Xponance, Inc.88,870$21.2M0.45%––
Employees Retirement System of Texas89,500$21.4M0.28%––
EULAV Asset Management90,600$21.7M0.58%––
Baskin Financial Services Inc.92,576$22.1M2.28%––
DekaBank Deutsche Girozentrale93,504$22.2M0.07%––
Janney Montgomery Scott LLC94,045$22.5M0.11%––
Mackay Shields LLC96,222$23.0M0.17%––
Barr E S & Co96,513$23.1M1.81%––
Gulf International Bank (UK) Ltd96,841$23.1M0.32%––
Natixis Advisors, L.P.97,627$23.3M0.12%––
Vestcor Inc99,411$23.8M0.89%––
Whittier Trust Co99,696$23.8M0.46%––
RMB Capital Management, LLC100,402$24.0M0.89%––
Campbell Newman Asset Management Inc100,474$24.0M2.53%––
Worldquant Millennium Advisors LLC101,165$24.2M0.51%––
CIBC World Markets Inc.101,325$24.2M0.07%––
Raub Brock Capital Management LP102,156$24.4M3.85%––
Natixis103,611$24.6M0.08%––
Cohen Klingenstein LLC103,734$24.8M1.14%––
MetLife Investment Management105,896$25.3M0.23%––
Handelsbanken Fonder AB108,967$26.1M0.15%––
Boston Family Office LLC110,447$26.4M1.98%––
Boston Financial Mangement LLC111,131$26.6M1.17%––
State of Michigan Retirement System111,495$26.7M0.17%––
Gateway Investment Advisers LLC111,606$26.7M0.29%––
Motley Fool Wealth Management, LLC111,609$26.7M1.20%––
Trillium Asset Management, LLC112,459$26.9M0.85%––
HighTower Advisors, LLC113,010$27.0M0.09%––
KBC Group NV113,828$27.2M0.11%––
Commonwealth Equity Services, LLC114,161$27.3M0.08%––
Teachers Retirement System of the State of Kentucky114,609$27.4M0.27%––
ProShare Advisors LLC117,653$28.1M0.09%––
Zurcher Kantonalbank (Zurich Cantonalbank)119,459$28.6M0.17%––
Advisor Group Holdings, Inc.119,452$28.6M0.07%––
Segantii Capital Management Ltd120,000$28.7M1.25%––
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund120,025$28.7M0.26%––
Carnegie Capital Asset Management, LLC121,128$29.0M1.21%––
MUFG Americas Holdings Corp121,439$29.0M0.57%––
Schroder Investment Management Group122,854$29.4M0.04%––
Washington Trust Co123,886$29.6M0.91%––
Arizona State Retirement System125,181$29.9M0.26%––
Calamos Advisors LLC128,741$30.8M0.18%––
Greenleaf Trust129,737$31.0M0.41%––
Brown Brothers Harriman & Co130,545$31.2M0.20%––
Tiaa, FSB130,891$31.3M0.11%––
Rockefeller Capital Management L.P.130,977$31.3M0.21%––
LPL Financial LLC132,497$31.7M0.04%––
Robeco Institutional Asset Management B.V.132,608$31.7M0.08%––
Penserra Capital Management LLC134,226$32.1M0.59%––
Baird Financial Group, Inc.136,223$32.6M0.09%––
United Capital Financial Advisers, LLC136,460$32.6M0.18%––
Thrivent Financial for Lutherans139,193$33.3M0.07%––
Barton Investment Management140,226$33.5M3.12%––
Dearborn Partners LLC142,986$34.2M1.46%––
EP Wealth Advisors, LLC144,005$34.4M1.09%––
Aureus Asset Management, LLC145,091$34.7M2.69%––
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.145,196$34.7M0.23%––
Parallax Volatility Advisers, L.P.147,246$35.2M0.31%––
Polar Asset Management Partners Inc.147,852$35.3M0.53%––
Heard Capital LLC147,990$35.4M9.96%––
Comerica Bank139,987$35.6M0.21%––
Clal Insurance Enterprises Holdings Ltd149,892$35.8M0.41%––
Guggenheim Capital LLC150,013$35.9M0.24%––