 Squarepoint Ops LLC grew its stake in shares of Newpark Resources Inc NYSE:NR by 409.9 during the 1st quarter, Holdings Channel.com reports. The firm owned 192,377 shares of the oil and gas companys stock after buying an additional 154,650 shares during the quarter. Squarepoint Ops LLCs holdings in Newpark Resources were worth 173,000 as of ... 