Ameriprise's acquisition of privately held J. & W. Seligman & Co. brings more mutual-fund and significant hedge-fund assets under the Minneapolis-based company's roof. Target: J. & W. Seligman & Co., founded 1864.
Business: Manages $3 billion in hedge-fund assets; manages growth and technology mutual funds.
Headquarters: New York, with a technology practice team headquartered in Palo Alto, Calif.
Employees: About 300.
Price: $440 million cash
