Oppenheimer Asset Management Inc. purchased a new stake in shares of Artivion, Inc. (NYSE:AORT – Free Report) during the second quarter, according to its most recent 13F filing with the SEC. The institutional investor purchased 21,513 shares of the company’s stock, valued at approximately $669,000. Oppenheimer Asset Management Inc. owned approximately 0.05% of Artivion at the end of the most recent quarter. Get Artivion alerts: A number of other institutional investors have also added to or reduced their s ...