Aon (AON) shares were down 1.2% in Wednesday trading after Piper Sandler downgraded the company's stock to neutral from overweight and adjusted its price target to $377 from $355.
Intraday volume was over 618,000 shares, compared with the daily average of 1.5 million.
Price: $354.74, Change: $-4.15, Percent Change: -1.16%