American Tower Corp

AMT

Exchange: NYSE
Industry: Real Estate Investment Trusts
SEC CIK: 0001053507

SEC filings (opens in a new tab)

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

Value heldQ1 2021: $95.8B

Institutions holding AMT and their total value by quarter
Quarter	Holders	Value
Q2 2026	1,757	$72.0B
Q1 2026	1,760	$74.4B
Q4 2025	1,781	$77.0B
Q3 2025	1,799	$82.5B
Q2 2025	1,852	$96.5B
Q1 2025	1,845	$95.0B
Q4 2024	1,798	$79.6B
Q3 2024	1,852	$99.4B
Q2 2024	1,769	$83.8B
Q1 2024	1,769	$85.0B
Q4 2023	1,802	$93.6B
Q3 2023	1,634	$69.9B
Q2 2023	1,688	$82.1B
Q1 2023	1,706	$86.3B
Q4 2022	1,711	$90.0B
Q3 2022	1,693	$91.0B
Q2 2022	1,747	$109.0B
Q1 2022	1,723	$104.3B
Q4 2021	1,799	$121.8B
Q3 2021	1,678	$109.6B
Q2 2021	1,656	$111.7B
Q1 2021	1,613	$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
Institution	Shares	Value	% of portfolio	Change in shares	Action
Enterprise Bank & Trust Co	13,518	$3.23M	1.36%	–	–
Earnest Partners LLC	13,494	$3.23M	0.02%	–	–
Simmons Bank	13,360	$3.19M	0.24%	–	–
Bragg Financial Advisors, Inc	13,337	$3.19M	0.21%	–	–
Foster & Motley Inc	13,275	$3.17M	0.29%	–	–
TD Private Client Wealth LLC	13,270	$3.17M	0.15%	–	–
Phocas Financial Corp.	13,160	$3.15M	0.41%	–	–
Autus Asset Management, LLC	13,095	$3.13M	0.37%	–	–
Hemenway Trust Co LLC	13,034	$3.12M	0.34%	–	–
Transcend Wealth Collective, LLC	12,928	$3.09M	0.37%	–	–
Coldstream Capital Management Inc	12,912	$3.09M	0.18%	–	–
Strategic Blueprint, LLC	12,834	$3.07M	0.65%	–	–
Meiji Yasuda Asset Management Co Ltd.	12,766	$3.05M	0.23%	–	–
Central Trust Co	12,620	$3.02M	0.12%	–	–
Rossmore Private Capital	12,570	$3.00M	0.56%	–	–
Profund Advisors LLC	12,506	$2.99M	0.11%	–	–
Corient Capital Partners, LLC	12,456	$2.98M	0.25%	–	–
Alpha Omega Wealth Management LLC	12,431	$2.97M	0.52%	–	–
Homrich & Berg	12,371	$2.96M	0.08%	–	–
Greenline Partners, LLC	12,306	$2.94M	0.64%	–	–
Seeyond	12,252	$2.93M	0.29%	–	–
Capital Square, LLC	12,132	$2.92M	2.17%	–	–
Buckingham Strategic Wealth, LLC	12,192	$2.92M	0.14%	–	–
Private Trust Co NA	12,180	$2.91M	0.47%	–	–
Telos Capital Management, Inc.	12,164	$2.91M	0.42%	–	–
Nixon Peabody Trust Co	12,113	$2.90M	1.17%	–	–
Waratah Capital Advisors Ltd.	12,094	$2.89M	0.17%	–	–
Winfield Associates, Inc.	12,069	$2.88M	1.18%	–	–
AE Wealth Management LLC	12,066	$2.88M	0.03%	–	–
Cape Cod Five Cents Savings Bank	11,987	$2.87M	0.31%	–	–
Beech Hill Advisors, Inc.	11,940	$2.85M	1.18%	–	–
Presima Inc.	11,900	$2.85M	0.38%	–	–
Laurion Capital Management LP	11,867	$2.84M	0.04%	–	–
Summit Global Investments	11,837	$2.83M	0.18%	–	–
Alerus Financial NA	11,799	$2.82M	0.30%	–	–
Kentucky Retirement Systems Insurance Trust Fund	11,759	$2.81M	0.30%	–	–
Marshall Wace North America L.P.	11,744	$2.81M	0.01%	–	–
Citizens & Northern Corp	11,600	$2.77M	1.10%	–	–
Kornitzer Capital Management Inc	11,595	$2.77M	0.04%	–	–
Kayne Anderson Capital Advisors LP	11,600	$2.77M	0.09%	–	–
Ameritas Investment Partners, Inc.	11,920	$2.77M	0.11%	–	–
John G Ullman & Associates Inc	11,570	$2.77M	0.37%	–	–
RVB Capital Management LLC	11,500	$2.75M	2.11%	–	–
Howe & Rusling Inc	11,392	$2.72M	0.37%	–	–
Shepherd Financial Partners LLC	11,238	$2.69M	0.59%	–	–
HCR Wealth Advisors	11,234	$2.69M	0.53%	–	–
Dillon & Associates Inc	11,205	$2.68M	0.57%	–	–
Centaurus Financial, Inc.	11,182	$2.67M	0.26%	–	–
Texas Yale Capital Corp.	11,117	$2.66M	0.17%	–	–
USS Investment Management Ltd	11,100	$2.65M	0.02%	–	–
Sumitomo Life Insurance Co	11,095	$2.65M	0.11%	–	–
Bailard, Inc.	10,963	$2.62M	0.10%	–	–
Prelude Capital Management, LLC	10,805	$2.58M	0.18%	–	–
Toroso Investments, LLC	10,804	$2.58M	0.12%	–	–
Shelton Capital Management	10,801	$2.58M	0.09%	–	–
Wetherby Asset Management Inc	10,753	$2.57M	0.20%	–	–
Cetera Investment Advisers	10,728	$2.56M	0.05%	–	–
Strategic Capital Advisers, Inc.	10,713	$2.56M	2.23%	–	–
Wealthspire Advisors, LLC	10,688	$2.56M	0.06%	–	–
Mechanics Bank Trust Department	10,648	$2.54M	0.44%	–	–
Raymond James Trust N.A.	10,577	$2.53M	0.09%	–	–
Zeno Research, LLC	10,514	$2.51M	4.86%	–	–
M. Kulyk & Associates, LLC	10,481	$2.51M	0.94%	–	–
Gryphon Financial Partners LLC	10,481	$2.50M	0.59%	–	–
Regions Financial Corp	10,428	$2.49M	0.02%	–	–
IMA Wealth, Inc.	10,392	$2.48M	0.61%	–	–
Ingalls & Snyder LLC	10,340	$2.47M	0.12%	–	–
BBVA USA Bancshares, Inc.	10,311	$2.46M	0.12%	–	–
Cox Capital Mgt LLC	10,309	$2.46M	1.71%	–	–
Bessemer Securities LLC	10,250	$2.45M	1.04%	–	–
Iowa State Bank	10,204	$2.44M	0.73%	–	–
Bridgeway Capital Management, LLC	10,200	$2.44M	0.05%	–	–
Oak Asset Management, LLC	10,182	$2.43M	1.31%	–	–
Everence Capital Management Inc	10,172	$2.43M	0.22%	–	–
CPWM, LLC	10,173	$2.43M	0.21%	–	–
KCM Investment Advisors LLC	10,124	$2.42M	0.11%	–	–
Mattern Wealth Management LLC	10,084	$2.41M	0.85%	–	–
Ally Financial Inc.	10,000	$2.39M	0.23%	–	–
Valeo Financial Advisors, LLC	9,883	$2.36M	0.11%	–	–
Quantitative Investment Management, LLC	9,772	$2.34M	0.20%	–	–
Parallel Advisors, LLC	9,707	$2.32M	0.11%	–	–
Allstate Corp	9,706	$2.32M	0.07%	–	–
Inscription Capital, LLC	9,695	$2.32M	0.79%	–	–
Mayflower Financial Advisors, LLC	9,636	$2.30M	0.35%	–	–
Terry L. Blaker	9,626	$2.30M	0.15%	–	–
Banque Cantonale Vaudoise	9,620	$2.30M	0.12%	–	–
UBS Oconnor LLC	9,600	$2.29M	0.03%	–	–
Baldwin Investment Management, LLC	9,486	$2.27M	0.41%	–	–
Goelzer Investment Management, Inc.	9,477	$2.27M	0.20%	–	–
Welch & Forbes LLC	9,432	$2.25M	0.04%	–	–
Ledyard National Bank	9,429	$2.25M	0.24%	–	–
Clearstead Advisors, LLC	9,381	$2.24M	0.19%	–	–
Meitav Dash Investments Ltd	9,355	$2.24M	0.07%	–	–
Kranot Hishtalmut Le Morim Tichoniim Havera Menahelet LTD	9,355	$2.24M	0.46%	–	–
Lowell Blake & Associates Inc.	9,264	$2.21M	1.13%	–	–
Cornerstone Advisory, LLC	9,219	$2.20M	0.42%	–	–
Vestmark Advisory Solutions, Inc.	9,145	$2.19M	0.19%	–	–
Massmutual Trust Co FSB	9,069	$2.17M	0.10%	–	–
Cottage Street Advisors LLC	9,036	$2.16M	1.42%	–	–
TCF National Bank	8,993	$2.15M	0.24%	–	–