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
B.S. Pension Fund Trustee Ltd acting for the British Steel Pension Fund	142,000	$36.2M	8.08%	–	–
Securian Asset Management, Inc	152,179	$36.4M	0.79%	–	–
American International Group, Inc.	153,462	$36.7M	0.15%	–	–
Klingenstein Fields & Co LP	156,305	$37.4M	1.69%	–	–
King Luther Capital Management Corp	158,415	$37.9M	0.20%	–	–
Macquarie Group Ltd	160,872	$38.5M	0.05%	–	–
Adelante Capital Management LLC	169,137	$40.4M	2.54%	–	–
Teacher Retirement System of Texas	174,469	$41.7M	0.23%	–	–
Fifth Third Bancorp	177,834	$42.5M	0.20%	–	–
Reaves W H & Co Inc	179,347	$42.9M	1.49%	–	–
Lasalle Investment Management Securities LLC	184,179	$44.0M	1.39%	–	–
Bamco Inc	186,555	$44.6M	0.11%	–	–
Advisors Asset Management, Inc.	187,117	$44.7M	0.70%	–	–
Victory Capital Management Inc	187,485	$44.8M	0.05%	–	–
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main	188,137	$45.0M	0.08%	–	–
Millennium Management LLC	190,387	$45.5M	0.06%	–	–
Two Sigma Advisers, LP	191,900	$45.9M	0.13%	–	–
Treasurer of the State of North Carolina	193,541	$46.3M	0.29%	–	–
Commonwealth of Pennsylvania Public School Empls Retrmt Sys	193,636	$46.3M	0.57%	–	–
Haverford Trust Co	194,576	$46.5M	0.60%	–	–
Capital Bank & Trust Co	194,944	$46.6M	0.55%	–	–
State of Tennessee, Treasury Department	195,376	$46.7M	0.19%	–	–
Northeast Investment Management	196,155	$46.9M	2.77%	–	–
Skandinaviska Enskilda Banken AB (publ)	196,194	$46.9M	0.31%	–	–
Alberta Investment Management Corp	196,300	$46.9M	0.42%	–	–
Loomis Sayles & Co L P	197,793	$47.3M	0.06%	–	–
CCLA Investment Management Ltd	197,802	$47.3M	0.95%	–	–
Howland Capital Management LLC	198,406	$47.4M	2.64%	–	–
STRS Ohio	200,218	$47.9M	0.18%	–	–
Cincinnati Financial Corp	201,619	$48.2M	1.25%	–	–
Raymond James Financial Services Advisors, Inc.	209,759	$50.1M	0.11%	–	–
Nordea Investment Management AB	212,708	$50.3M	0.07%	–	–
Healthcare of Ontario Pension Plan Trust Fund	217,765	$52.1M	0.13%	–	–
Factory Mutual Insurance Co	218,238	$52.2M	0.67%	–	–
Pictet Asset Management Ltd	219,402	$52.5M	0.06%	–	–
Ninety One UK Ltd	220,442	$52.7M	0.15%	–	–
Skye Global Management LP	222,000	$53.1M	1.06%	–	–
Asset Management One Co.,Ltd.	222,089	$53.1M	0.21%	–	–
Nissay Asset Management Corp	225,944	$54.0M	0.53%	–	–
Mackenzie Financial Corp	226,221	$54.1M	0.08%	–	–
NN Investment Partners Holdings N.V.	232,118	$55.5M	0.33%	–	–
Prudential PLC	235,650	$56.3M	0.39%	–	–
State of Alaska, Department of Revenue	241,467	$57.7M	0.63%	–	–
Zurich Insurance Group Ltd	241,903	$57.8M	0.83%	–	–
Voya Investment Management LLC	249,016	$59.5M	0.12%	–	–
AMF Pensionsforsakring AB	249,915	$59.8M	0.45%	–	–
Jane Street Group, LLC	251,044	$60.0M	0.17%	–	–
Westpac Banking Corp	255,453	$61.1M	0.67%	–	–
American Assets Capital Advisers, LLC	259,068	$61.9M	8.04%	–	–
CIBC Asset Management Inc	259,510	$62.0M	0.26%	–	–
Truist Financial Corp	265,985	$63.6M	0.11%	–	–
Ranger Global Real Estate Advisors, LLC	269,991	$64.5M	6.91%	–	–
GW&K Investment Management, LLC	277,146	$66.3M	0.61%	–	–
Partners Group Holding AG	277,295	$66.3M	5.70%	–	–
Rheos Capital Works Inc.	278,300	$66.5M	4.40%	–	–
Madison Asset Management, LLC	279,967	$66.9M	0.93%	–	–
Glenmede Trust Co NA	284,376	$68.0M	0.37%	–	–
Public Employees Retirement System of Ohio	285,402	$68.2M	0.27%	–	–
M&T Bank Corp	287,536	$68.7M	0.30%	–	–
Epoch Investment Partners, Inc.	292,320	$69.9M	0.33%	–	–
Keybank National Association	293,662	$70.2M	0.33%	–	–
Royal London Asset Management Ltd	299,142	$71.6M	0.33%	–	–
Chevy Chase Trust Holdings, Inc.	299,788	$71.7M	0.26%	–	–
Rothschild & Co Asset Management US Inc.	307,232	$73.4M	0.91%	–	–
Susquehanna International Group, LLP	310,419	$74.2M	0.10%	–	–
State of New Jersey Common Pension Fund D	313,059	$74.8M	0.26%	–	–
Douglas Lane & Associates, LLC	315,713	$75.5M	1.17%	–	–
Kames Capital plc	317,859	$76.0M	1.13%	–	–
Brookfield Asset Management Inc.	320,648	$76.7M	0.37%	–	–
Bartlett & Co. Wealth Management LLC	320,993	$76.7M	1.54%	–	–
Bartlett & Co. LLC	320,993	$76.7M	1.54%	–	–
BNP Paribas Arbitrage, SA	321,454	$76.8M	0.17%	–	–
Colony Capital, Inc.	323,000	$77.2M	9.85%	–	–
Davis R M Inc	323,480	$77.3M	2.12%	–	–
Tesco Pension Investment Ltd	331,721	$79.3M	1.50%	–	–
Scotia Capital Inc.	334,129	$79.9M	0.67%	–	–
Bristol Gate Capital Partners Inc.	335,025	$80.1M	4.78%	–	–
First Trust Advisors LP	337,685	$80.7M	0.10%	–	–
Locust Wood Capital Advisers, LLC	338,503	$80.9M	5.77%	–	–
Echo Street Capital Management LLC	348,856	$83.4M	0.75%	–	–
Aviva PLC	352,356	$84.2M	0.41%	–	–
Toronto Dominion Bank	354,171	$84.7M	0.15%	–	–
The PNC Financial Services Group, Inc.	357,157	$85.4M	0.08%	–	–
Stifel Financial Corp	358,607	$85.7M	0.14%	–	–
Ci Investments Inc.	372,551	$89.1M	0.38%	–	–
M&G Investment Management Ltd	372,769	$89.1M	0.75%	–	–
Eaton Vance Management	372,751	$89.1M	0.13%	–	–
Korea Investment CORP	378,591	$90.5M	0.29%	–	–
Johnson Investment Counsel Inc	380,071	$90.9M	1.37%	–	–
First Republic Investment Management, Inc.	385,948	$92.3M	0.30%	–	–
Nisa Investment Advisors, LLC	394,570	$94.3M	0.60%	–	–
ClearBridge Investments Ltd	402,829	$96.3M	4.05%	–	–
Prudential Financial Inc	408,354	$97.6M	0.15%	–	–
Storebrand Asset Management AS	411,127	$98.3M	0.52%	–	–
Federated Hermes, Inc.	428,870	$102.5M	0.20%	–	–
Uniplan Investment Counsel, Inc.	432,898	$103.5M	6.63%	–	–
Manning & Napier Group, LLC	462,742	$110.6M	0.94%	–	–
Evercore Wealth Management, LLC	463,812	$110.9M	2.20%	–	–
AXA S.A.	464,629	$111.1M	0.34%	–	–
Duff & Phelps Investment Management Co	466,572	$111.5M	1.52%	–	–