Ameriprise unit J&W Seligman & Co. unit was also on the receiving end of a subpoena in connection with a goverment probe on insider trading, Bloomberg reports
"Like many other firms, a couple weeks ago, Seligman received a general information request that is not specific to individuals or securities," Bloomberg quotes
Ameriprise spokesman Ben Pratt as stating in e-mailed comments.
Armie Margaret Lee
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