Stewart Newton and 100 staff at Newton Investment Management will receive huge windfalls when Mellon Financial Corporation buys the remaining 25% of shares in the company one year early.

Mellon, which bought 75% of Newton in July 1998 with an option to buy the remaining 25% in 2002 and 2003, has decided to buy 20% of the shares on July 1, 2001 and 5% on May 1, 2002.