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
Ayrshire Capital Management LLC	4,074	$974.0K	0.60%	–	–
Financial Advocates Investment Management	4,090	$978.0K	0.07%	–	–
Schnieders Capital Management LLC	4,105	$981.0K	0.29%	–	–
Mutual Advisors, LLC	4,110	$982.0K	0.07%	–	–
Tranquility Partners, LLC	4,119	$985.0K	0.61%	–	–
First National Trust Co	4,123	$986.0K	0.06%	–	–
Benjamin Edwards Inc	4,130	$987.0K	0.75%	–	–
Connolly Sarah T.	4,130	$988.0K	0.88%	–	–
Trust Co	4,137	$989.0K	0.71%	–	–
Mount Yale Investment Advisors, LLC	4,159	$994.0K	0.13%	–	–
Level Four Advisory Services, LLC	4,185	$1.00M	0.08%	–	–
Lazard Freres Gestion S.A.S.	4,930	$1.00M	0.03%	–	–
River Wealth Advisors LLC	4,198	$1.00M	0.19%	–	–
Centerpoint Advisors, LLC	4,225	$1.01M	0.59%	–	–
Tokio Marine Asset Management Co Ltd	4,227	$1.01M	0.10%	–	–
Insight Wealth Strategies, LLC	4,257	$1.02M	0.14%	–	–
Te Ahumairangi Investment Management Ltd	4,263	$1.02M	0.13%	–	–
Mitchell McLeod Pugh & Williams Inc	4,293	$1.03M	0.43%	–	–
CWM, LLC	3,863	$1.04M	0.01%	–	–
Prime Capital Investment Advisors, LLC	4,364	$1.04M	0.08%	–	–
Quantitative Systematic Strategies LLC	4,368	$1.04M	0.16%	–	–
Pitcairn Co	4,376	$1.05M	0.07%	–	–
Mirova	4,382	$1.05M	0.12%	–	–
Keebeck Wealth Management, LLC	4,379	$1.05M	0.16%	–	–
Clarius Group, LLC	4,439	$1.06M	0.11%	–	–
Checchi Capital Advisers, LLC	4,485	$1.07M	0.15%	–	–
Landscape Capital Management, L.L.C.	4,497	$1.07M	0.17%	–	–
Bank of Nova Scotia Trust Co	4,507	$1.08M	0.10%	–	–
Moors & Cabot, Inc.	4,497	$1.08M	0.08%	–	–
BI Asset Management Fondsmaeglerselskab A/S	4,545	$1.09M	0.04%	–	–
Sentry Investment Management LLC	4,559	$1.09M	0.30%	–	–
Norway Savings Bank	4,594	$1.10M	0.58%	–	–
Affinity Investment Advisors, LLC	4,620	$1.10M	0.40%	–	–
Lederer & Associates Investment Counsel	4,636	$1.11M	0.78%	–	–
Minot Wealth Management LLC	4,673	$1.12M	0.29%	–	–
Fortem Financial Group, LLC	4,676	$1.12M	0.65%	–	–
Gs Investments, Inc.	4,735	$1.13M	2.48%	–	–
Horizon Investments, LLC	4,739	$1.13M	0.04%	–	–
San Francisco Sentry Investment Group (Ca)	4,763	$1.14M	0.48%	–	–
Spinnaker Trust	4,769	$1.14M	0.09%	–	–
Center for Financial Planning, Inc.	4,783	$1.14M	0.30%	–	–
Caldwell Trust Co	4,793	$1.15M	0.16%	–	–
CSU Producer Resources, Inc.	4,800	$1.15M	4.78%	–	–
Community Bank, N.A.	4,815	$1.15M	0.14%	–	–
JustInvest LLC	4,815	$1.15M	0.17%	–	–
Mitchell & Pahl Private Wealth, LLC	4,839	$1.16M	0.90%	–	–
Geneos Wealth Management Inc.	4,566	$1.16M	0.03%	–	–
Grove Bank & Trust	4,875	$1.17M	0.27%	–	–
O'Shaughnessy Asset Management, LLC	4,883	$1.17M	0.03%	–	–
Burney Co	4,897	$1.17M	0.06%	–	–
Douglass Winthrop Advisors, LLC	4,900	$1.17M	0.03%	–	–
Lavaca Capital LLC	4,925	$1.18M	0.68%	–	–
Leonteq Securities AG	4,927	$1.18M	0.08%	–	–
Veriti Management LLC	4,948	$1.18M	0.32%	–	–
Bradley Foster & Sargent Inc	4,980	$1.19M	0.03%	–	–
Nicolet Bankshares Inc	4,989	$1.19M	0.33%	–	–
Supplemental Annuity Collective Trust of NJ	5,000	$1.20M	0.41%	–	–
Citizens Business Bank	5,000	$1.20M	0.17%	–	–
Sheaff Brock Investment Advisors, LLC	5,007	$1.20M	0.13%	–	–
Paradigm Asset Management Co LLC	5,020	$1.20M	0.32%	–	–
Diversified Trust Co	5,024	$1.20M	0.05%	–	–
United Bank	5,050	$1.21M	0.85%	–	–
Prudent Man Advisors, LLC	5,065	$1.21M	0.51%	–	–
Berkshire Bank	5,084	$1.22M	0.31%	–	–
Somerset Trust Co	5,098	$1.22M	0.53%	–	–
Avantax Advisory Services, Inc.	5,143	$1.23M	0.03%	–	–
Covey Capital Advisors, LLC	5,194	$1.24M	1.03%	–	–
Aft, Forsyth & Sober, LLC	5,200	$1.24M	0.51%	–	–
Gyroscope Capital Management Group, LLC	5,250	$1.25M	0.50%	–	–
Fulton Bank, N.A.	5,303	$1.27M	0.06%	–	–
Brighton Jones LLC	5,304	$1.27M	0.08%	–	–
Davidson Capital Management Inc.	5,307	$1.27M	0.66%	–	–
Mid Atlantic Financial Management Inc	5,358	$1.28M	0.09%	–	–
Beacon Pointe Advisors, LLC	5,425	$1.29M	0.08%	–	–
Ferguson Wellman Capital Management, Inc	5,421	$1.30M	0.05%	–	–
Kayne Anderson Rudnick Investment Management LLC	5,435	$1.30M	0.00%	–	–
WMS Partners, LLC	5,441	$1.30M	0.30%	–	–
Equitable Trust Co	5,446	$1.30M	0.10%	–	–
Patten & Patten Inc	5,446	$1.30M	0.11%	–	–
Fuller & Thaler Asset Management, Inc.	5,450	$1.30M	0.01%	–	–
Wedbush Securities Inc	5,491	$1.31M	0.07%	–	–
RB Capital Management, LLC	5,491	$1.31M	0.58%	–	–
Lockheed Martin Investment Management Co	5,500	$1.31M	0.07%	–	–
Werlinich Asset Management, LLC	5,540	$1.32M	1.16%	–	–
We Are One Seven, LLC	5,582	$1.33M	0.23%	–	–
Joel Isaacson & Co., LLC	5,610	$1.34M	0.12%	–	–
American Assets Investment Management, LLC	5,612	$1.34M	0.19%	–	–
McDonald Partners LLC	5,617	$1.34M	0.35%	–	–
Bank Julius Baer & Co. Ltd, Zurich	5,629	$1.35M	0.01%	–	–
Arjuna Capital	5,633	$1.35M	0.66%	–	–
SeaCrest Wealth Management, LLC	5,644	$1.35M	0.18%	–	–
RKL Wealth Management LLC	5,677	$1.36M	0.18%	–	–
Argent Trust Co	5,744	$1.37M	0.10%	–	–
Busey Wealth Management	5,786	$1.38M	0.07%	–	–
Gotham Asset Management, LLC	5,834	$1.40M	0.06%	–	–
Sullivan, Bruyette, Speros & Blaney, LLC	5,836	$1.40M	0.06%	–	–
Western Wealth Management, LLC	5,836	$1.40M	0.19%	–	–
Algert Global LLC	5,847	$1.40M	0.45%	–	–
Total Clarity Wealth Management, Inc.	5,848	$1.40M	0.80%	–	–
SWS Partners	5,888	$1.41M	0.97%	–	–