Increased fees from hedge funds and mutual funds were cited as major factors in the rise in net income, which was up to $237 million for the quarter compared with $208 million a year earlier.
Total assets under management also increased by 27 per cent to reach $995 billion in December.
"2006 was a fantastic year for Mellon and 2007 should be even more exciting," commented Robert P Kelly, the chairman, president and chief executive of Mellon Financial.
"The proposed merger with Bank of New York will create a powerful and rapidly growing global competitor in our core asset management and servicing businesses and the opportunities for cost savings and revenue synergies are meaningful."