American Tower (AMT) Shares Outstanding (Weighted Average) (2009 - 2026)

American Tower has disclosed Shares Outstanding (Weighted Average) across 16 years of filings, most recently posting $466.2 million for Q1 2026.

• Shares Outstanding (Weighted Average) for Q1 2026 came in at $466.2 million, changed 0.31% year-over-year; the trailing twelve-month figure through Mar 2026 was $466.2 million (changed 0.31% YoY), and the FY2025 annual result was $467.9 million, changed 0.2% from the prior year.
• Shares Outstanding (Weighted Average) came in at $466.2 million for Q1 2026 at American Tower, roughly flat from $467.9 million in the prior quarter.
• In the past five years, Shares Outstanding (Weighted Average) ranged from a high of $468.0 million in Q3 2025 to a low of $455.9 million in Q1 2022.
• The 5-year median for Shares Outstanding (Weighted Average) is $466.5 million (2024), against an average of $465.2 million.
• Across the five-year window, Shares Outstanding (Weighted Average) advanced 2.58% in 2022 and declined 0.31% in 2026, its largest moves.
• American Tower's Shares Outstanding (Weighted Average) stood at $460.1 million in 2022, then rose by 1.31% to $466.2 million in 2023, then advanced by 0.18% to $467.0 million in 2024, then gained by 0.2% to $467.9 million in 2025, then fell by 0.37% to $466.2 million in 2026.
• The last three Shares Outstanding (Weighted Average) figures came in at $466.2 million (Q1 2026), $467.9 million (Q4 2025), and $468.0 million (Q3 2025), per Business Quant data.