 Thrivent Financial for Lutherans boosted its stake in Pra Group Inc NASDAQ:PRAA by 5.3 during the first quarter, Holdings Channel.com reports. The institutional investor owned 38,058 shares of the business services providers stock after acquiring an additional 1,900 shares during the period. Thrivent Financial for Lutherans holdings in Pra Group were worth 1,055,000 at the ... 