Aon (AON) Shares Outstanding (2009 - 2026)

Aon's Shares Outstanding history runs 18 years deep, the most recent figure standing at $213.6 million for Q1 2026.

• In Q1 2026, Shares Outstanding fell 1.16% year-over-year to $213.6 million; the TTM figure through Mar 2026 stood at $213.6 million (down 1.16% YoY), while the FY2025 annual figure was $214.5 million, down 0.69% from the prior year.
• Shares Outstanding was $213.6 million for Q1 2026 at Aon, roughly flat from $214.5 million in the prior quarter.
• In the past five years, Shares Outstanding ranged from a high of $217.2 million in Q2 2024 to a low of $198.6 million in Q4 2023.
• Historically, Shares Outstanding has averaged $209.9 million across 5 years, with a median of $212.9 million in 2022.
• The sharpest annual moves came in 2022 and 2025: Shares Outstanding dropped 6.23% in 2022, then grew 8.81% in 2025.
• A 5-year view of Shares Outstanding shows it stood at $205.4 million in 2022, then decreased by 3.31% to $198.6 million in 2023, then grew by 8.76% to $216.0 million in 2024, then dropped by 0.69% to $214.5 million in 2025, then dropped by 0.42% to $213.6 million in 2026.
• The last three Shares Outstanding figures came in at $213.6 million (Q1 2026), $214.5 million (Q4 2025), and $215.2 million (Q3 2025), per Business Quant data.