Oppenheimer Asset Management Inc. Purchases 135,602 Shares of MDU Resources Group, Inc. $MDU
Oppenheimer Asset Management Inc. raised its stake in MDU Resources Group, Inc. (NYSE:MDU - Free Report) by 604.3% in the fourth quarter, according to the company in its most recent disclosure with the Securities & Exchange Commission. The institutional investor owned 158,043 shares of the uti...