Aon has revealed that it has raised £350m through the sale of common stock in a bid to cut debts.
The world's second largest insurance broker, sold 32m shares of common stock at £11.05 per share.
Despite its success in raising the capital, Aon is believed to have hoped to raise £320m.
This figure is a further reduction from the £643m Aon said last week it needed globally to shore up its finances.
Aon granted the underwriters a 15% "over-allotment" option of 4.8m shares. Morgan Stanley arranged the sale along with William Blair as co-lead underwriter.