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American Tower Corporation (AMT)

American Tower Corporation at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

American Tower Corporation (AMT) is a REIT - Specialty company based in US with a market capitalization of $86.8B. Revenue grew 5.1% year-over-year and the company generated $3.8B in free cash flow. This page tracks AMT's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 4.69K employees · IPO Feb 27, 1998

Valuation

Valuation & price

$170.63 · as of May 17, 2026 · -26.6% vs 52w high

31.6

P/E ratio

Latest-FY diluted EPS

23.78

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$230$198$166Jul 25Dec 25Jul 26Jul 7, 25$220.02Jul 9, 25$221.83Jul 11, 25$219.24Jul 15, 25$218.92Jul 17, 25$223.04Jul 21, 25$226.50Jul 23, 25$230.18Jul 25, 25$229.87Jul 29, 25$214.71Jul 31, 25$208.39Aug 4, 25$212.98Aug 6, 25$208.90Aug 11, 25$206.08Aug 13, 25$204.15Aug 15, 25$206.12Aug 19, 25$206.65Aug 21, 25$209.73Aug 25, 25$211.12Aug 27, 25$203.27Aug 29, 25$203.85Sep 3, 25$196.26Sep 5, 25$198.32Sep 9, 25$194.60Sep 11, 25$196.55Sep 16, 25$194.73Sep 18, 25$193.03Sep 22, 25$193.21Sep 24, 25$192.93Sep 26, 25$194.27Sep 30, 25$192.32Oct 2, 25$191.17Oct 6, 25$185.57Oct 8, 25$185.59Oct 10, 25$186.68Oct 14, 25$186.51Oct 16, 25$191.47Oct 21, 25$192.37Oct 23, 25$190.30Oct 27, 25$189.73Oct 29, 25$179.08Oct 31, 25$178.98Nov 4, 25$180.35Nov 6, 25$178.09Nov 10, 25$179.72Nov 12, 25$183.35Nov 14, 25$183.59Nov 18, 25$181.55Nov 20, 25$179.12Nov 25, 25$179.76Nov 28, 25$181.27Dec 2, 25$175.81Dec 4, 25$178.83Dec 8, 25$183.20Dec 10, 25$180.26Dec 12, 25$180.70Dec 16, 25$179.13Dec 18, 25$174.29Dec 22, 25$172.53Dec 24, 25$174.80Dec 29, 25$175.83Jan 2, 26$174.80Jan 6, 26$175.82Jan 8, 26$170.33Jan 12, 26$171.53Jan 14, 26$177.48Jan 16, 26$183.57Jan 21, 26$178.17Jan 23, 26$178.75Jan 27, 26$180.07Jan 29, 26$181.34Feb 2, 26$173.70Feb 4, 26$176.55Feb 9, 26$173.71Feb 11, 26$180.48Feb 13, 26$192.10Feb 18, 26$186.62Feb 20, 26$187.31Feb 24, 26$190.19Feb 26, 26$185.01Mar 2, 26$190.20Mar 4, 26$190.80Mar 6, 26$188.59Mar 10, 26$186.12Mar 12, 26$179.86Mar 17, 26$185.07Mar 19, 26$182.76Mar 23, 26$176.50Mar 25, 26$167.27Mar 27, 26$169.52Mar 31, 26$172.58Apr 2, 26$173.73Apr 7, 26$174.08Apr 9, 26$179.93Apr 13, 26$180.94Apr 15, 26$176.99Apr 17, 26$182.36Apr 22, 26$176.31Apr 24, 26$178.21Apr 28, 26$178.40Apr 30, 26$182.71May 4, 26$180.88May 6, 26$180.16May 8, 26$176.53May 12, 26$178.82May 14, 26$170.50May 18, 26$177.28May 20, 26$184.02May 22, 26$183.85May 28, 26$186.68Jun 1, 26$187.53Jun 3, 26$182.24Jun 5, 26$194.12Jun 9, 26$190.83Jun 11, 26$189.31Jun 15, 26$185.76Jun 17, 26$181.09Jun 22, 26$176.43Jun 24, 26$174.46Jun 26, 26$175.59Jul 2, 26$166.03
$163.5752-week range$232.35
Loading valuation history…

Fundamentals

Key fundamentals

$86.8B

Market cap

5.1%

Revenue growth (YoY)

73.7%

Gross margin

$3.8B

Free cash flow (USD)

$43.5B

Net debt

0.5%

Share dilution

2/5

Graham criteria passed

Defensive-investor screen

Real Estate

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$5.8BFY 2017$6.7BFY 2018$7.4BFY 2019$7.6BFY 2020$8.0BFY 2021$9.4BFY 2022$9.6BFY 2023$10.0BFY 2024$10.1BFY 2025$10.6B
$5.8B$10.6B

Free cash flow by year

2016 → 2025

FY 2016$2.0BFY 2017$2.1BFY 2018$2.8BFY 2019$2.8BFY 2020$2.8BFY 2021$3.4BFY 2022$1.8BFY 2023$2.9BFY 2024$3.7BFY 2025$3.8B
$2B$3.8B

Gross margin by year

2021 → 2025

FY 202171.3%FY 202273.4%FY 202374.4%FY 202474.6%FY 202573.7%
71.3%73.7%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

0

Insider sells · 90 days

Earnings

Last report: 10-Q filed Apr 28, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • 8-K eventContract TerminationJun 4, 2026Filing
  • 8-K eventDebt RefinancingJun 2, 2026Filing
  • 8-K eventDebt IssuanceMay 27, 2026Filing
  • 8-K eventEquity Incentive Plan EstablishedMay 21, 2026Filing
  • 8-K eventSenior Notes OfferingMay 19, 2026Filing
  • 8-K eventDebt RefinancingMay 7, 2026Filing
  • 8-K eventEarnings ReleaseApr 28, 2026Filing
  • Quarterly report10-Q FiledApr 28, 2026Filing

Questions

Frequently asked questions

What is American Tower Corporation's market cap?

American Tower Corporation (AMT) has a market capitalization of $86.8B.

What is AMT's P/E ratio?

AMT trades at a price-to-earnings ratio of 31.6, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

What is AMT's price-to-book (P/B) ratio?

AMT trades at 23.78 times book value per share.

Are insiders buying AMT stock?

SEC Form 4 filings show no open-market insider buys at American Tower Corporation in the last 90 days (0 sells).

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Timeline

Every filing, insider trade & earnings on a price-anchored timeline

Filing Analyzer

Search the actual 10-K / 10-Q text with AI research angles

News

Latest press coverage in one feed

Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.