 BNP Paribas Arbitrage SA increased its stake in shares of Columbia Financial Inc NASDAQ:CLBK by 24.3 in the 1st quarter, according to its most recent 13F filing with the SEC. The firm owned 17,092 shares of the companys stock after buying an additional 3,338 shares during the period. BNP Paribas Arbitrage SAs holdings in Columbia ... 