AMERICAN TOWER CORP /MA/ (AMT) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

Low Risk
Limited dilution potential
Last updated: April 28, 2026

Risk Assessment Details

Potential Dilution: 0.0% of current shares
Recent Dilution: 0.38% (2 years)
Historical Dilution Factor: minimal recent dilution
Outstanding Shares
470M
Potential Supply
0
Additional shares possible
Splits
None
Past 2 years

Summary

AMT currently has 466M outstanding shares. with minimal authorized share overhang for future dilution. The company has minimally diluted shareholders by 0.38% over the past 2 years.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
Apr 28, 2026

10-Q filing | 466.2M shares outstanding

470M 0
Oct 28, 2025

10-Q filing | 468.3M shares outstanding

470M 0
Jul 29, 2025

10-Q filing | 468.2M shares outstanding

470M 0
Apr 29, 2025

10-Q filing | 468.5M shares outstanding

470M 0
Feb 25, 2025

10-K filing | 467.0M shares outstanding

470M 0
Oct 29, 2024

10-Q filing | 467.2M shares outstanding

470M 0
Jul 30, 2024

10-Q filing | 467.0M shares outstanding

470M 0
Apr 30, 2024

10-Q filing | 466.5M shares outstanding

470M 0
Feb 27, 2024

10-K filing | 466.1M shares outstanding

470M 0
Oct 26, 2023

10-Q filing | 466.2M shares outstanding

470M 0
Jul 27, 2023

10-Q filing | 466.1M shares outstanding

470M 0
Apr 26, 2023

10-Q filing | 465.7M shares outstanding

470M 0
Feb 23, 2023

10-K filing | 462.8M shares outstanding

460M 0
Oct 27, 2022

10-Q filing | 465.6M shares outstanding

470M 0
Jul 28, 2022

10-Q filing | 459.8M shares outstanding

460M 0
Jun 03, 2022

8-K filing: American Tower Corporation announced its intention to offer 8,350,000 shares of its common stock in a registered public offering and subsequently priced the offering at $256.00 per share with an option for underwriters to purchase up to an additional 835,000 shares.

460M 0
Apr 27, 2022

10-Q filing | 455.9M shares outstanding

460M 0
Feb 25, 2022

10-K filing | 453.3M shares outstanding

450M 0
Oct 28, 2021

10-Q filing | 455.2M shares outstanding

460M 0
Jul 29, 2021

10-Q filing | 452.4M shares outstanding

450M 0
Apr 29, 2021

10-Q filing | 444.5M shares outstanding

440M 0
Feb 25, 2021

10-K filing | 443.6M shares outstanding

440M 0
Oct 29, 2020

10-Q filing | 443.8M shares outstanding

440M 0
Jul 30, 2020

10-Q filing | 443.4M shares outstanding

440M 0
Apr 29, 2020

10-Q filing | 443.1M shares outstanding

440M 0
Feb 25, 2020

10-K filing | 442.3M shares outstanding

440M 0
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