Shares Outstanding for American Tower (AMT)
According to American Tower's latest reported financial statements, the company's latest reported diluted shares outstanding is 466.83M. Diluted weighted-average shares outstanding is the share count used to compute per-share metrics like EPS. Buybacks lower it; new issuance, stock-based compensation, and convertible securities raise it. Multiply by the stock price for market capitalization.
Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .
Currently viewingShares OutstandingSwitch metric
Latest period
466.83M
YoY change
+0.2%
5Y CAGR
+1.0%
Peak year (2025)
469.14M
Latest annual
469.14M
Shares Outstanding history chart for American Tower (AMT) from 1997 to 2025
Shares Outstanding history table for American Tower (AMT) from 1997 to 2025
| Fiscal year | Period ended | Reported | Shares Outstanding | YoY |
|---|---|---|---|---|
| 2025 | 469.14M | +0.2% | ||
| 2024 | 468.12M | +0.2% | ||
| 2023 | 467.16M | +1.0% | ||
| 2022 | 462.75M | +2.1% | ||
| 2021 | 453.29M | +1.6% | ||
| 2020 | 446.10M | +0.1% | ||
| 2019 | 445.52M | +0.6% | ||
| 2018 | 442.96M | +2.6% | ||
| 2017 | 431.69M | +0.6% | ||
| 2016 | 429.28M | +1.5% | ||
| 2015 | 423.02M | +5.7% | ||
| 2014 | 400.09M | +0.2% | ||
| 2013 | 399.15M | -0.0% | ||
| 2012 | 399.29M | -0.2% | ||
| 2011 | 400.20M | -1.0% | ||
| 2010 | 404.07M | -0.7% | ||
| 2009 | 406.95M | -2.7% | ||
| 2008 | 418.36M | -1.8% | ||
| 2007 | 426.08M | -2.3% | ||
| 2006 | 436.22M | +44.2% | ||
| 2005 | 302.51M | +34.8% | ||
| 2004 | 224.34M | +7.8% | ||
| 2003 | 208.10M | +6.5% | ||
| 2002 | 195.45M | +2.0% | ||
| 2001 | 191.59M | +13.6% | ||
| 2000 | 168.72M | +12.7% | ||
| 1999 | 149.75M | +87.7% | ||
| 1998 | 79.79M | -71.0% | ||
| 1997 | 275.32M | — |
Shares Outstanding values are taken from American Tower's reported income statements (10-Q quarterly and 10-K annual filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the date the filing was reported; YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.
Analysis
The 2025 reading of American Tower (AMT) diluted shares outstanding is 469.14M – edged up 0.2% year-over-year.
American Tower diluted shares outstanding compound annual growth for the 2020–2025 (5 years) window is +1.0%, sustaining 12 straight years of year-over-year growth.
469.14M stands as the all-time-high annual diluted shares outstanding, posted in 2025, against a low of 79.79M during 1998.
Among 8 Real Estate peers, American Tower (AMT) ranks 4th; the peer median for diluted shares outstanding is 338.79M.
American Tower Shares Outstanding by Year
American Tower Shares Outstanding 2025: 469.14M
American Tower diluted shares outstanding in 2025 was 469.14M, edged up 0.2% from 2024. This figure represents the highest annual value in the available history.
American Tower Shares Outstanding 2024: 468.12M
American Tower diluted shares outstanding in 2024 was 468.12M, edged up 0.2% from 2023.
American Tower Shares Outstanding 2023: 467.16M
American Tower diluted shares outstanding in 2023 was 467.16M, edged up 1.0% from 2022.
American Tower Shares Outstanding 2022: 462.75M
American Tower diluted shares outstanding in 2022 was 462.75M, edged up 2.1% from 2021.
American Tower Shares Outstanding 2021: 453.29M
American Tower diluted shares outstanding in 2021 was 453.29M.
See more financial history for American Tower (AMT).
Sector peers — Shares Outstanding
Companies in the same sector as American Tower, ranked by their latest diluted shares outstanding.
| Company | Shares Outstanding | Sector |
|---|---|---|
| Prologis, Inc. (PLD) | 958.02M | Real Estate |
| Realty Income Corporation (O) | 904.79M | Real Estate |
| Welltower Inc. (WELL) | 679.52M | Real Estate |
| Digital Realty Trust, Inc. (DLR) | 351.57M | Real Estate |
| Simon Property Group, Inc. (SPG) | 326.02M | Real Estate |
| CBRE Group, Inc. (CBRE) | 300.75M | Real Estate |
| Public Storage (PSA) | 175.90M | Real Estate |
| Equinix, Inc. (EQIX) | 98.12M | Real Estate |
Frequently asked questions
What is American Tower's diluted shares outstanding?
- Latest reported diluted shares outstanding for American Tower (AMT) is 466.83M (period ending March 31, 2026).
How has American Tower diluted shares outstanding changed year-over-year?
- American Tower (AMT) diluted shares outstanding changed +0.2% year-over-year on the latest annual filing.
What is the long-term growth rate of American Tower diluted shares outstanding?
- American Tower (AMT) diluted shares outstanding compound annual growth rate is +1.0% over the most recent 5 years available.
When did American Tower diluted shares outstanding hit its highest annual value?
- American Tower diluted shares outstanding reached its highest annual value of 469.14M in 2025.
What was American Tower diluted shares outstanding in 2024?
- American Tower (AMT) diluted shares outstanding in 2024 was 468.12M.
What was American Tower diluted shares outstanding in 2025?
- American Tower (AMT) diluted shares outstanding in 2025 was 469.14M.
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