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