Aon (AON) Shares Outstanding (Diluted Average) (2009 - 2026)

Aon's Shares Outstanding (Diluted Average) history runs 18 years deep, the most recent figure standing at $215.4 million for Q1 2026.

• In Q1 2026, Shares Outstanding (Diluted Average) fell 1.15% year-over-year to $215.4 million; the TTM figure through Mar 2026 stood at $215.4 million (down 1.15% YoY), while the FY2025 annual figure was $217.1 million, up 2.16% from the prior year.
• Shares Outstanding (Diluted Average) was $215.4 million for Q1 2026 at Aon, down from $217.1 million in the prior quarter.
• In the past five years, Shares Outstanding (Diluted Average) ranged from a high of $218.4 million in Q3 2024 to a low of $200.1 million in Q1 2024.
• Historically, Shares Outstanding (Diluted Average) has averaged $212.1 million across 5 years, with a median of $214.6 million in 2022.
• The sharpest annual moves came in 2022 and 2025: Shares Outstanding (Diluted Average) fell 5.83% in 2022, then gained 8.9% in 2025.
• A 5-year view of Shares Outstanding (Diluted Average) shows it stood at $213.2 million in 2022, then slipped by 3.85% to $205.0 million in 2023, then advanced by 3.66% to $212.5 million in 2024, then gained by 2.16% to $217.1 million in 2025, then declined by 0.78% to $215.4 million in 2026.
• The last three Shares Outstanding (Diluted Average) figures came in at $215.4 million (Q1 2026), $217.1 million (Q4 2025), and $217.3 million (Q3 2025), per Business Quant data.