 Principal Financial Group Inc. lessened its holdings in shares of Northfield Bancorp Inc NASDAQ:NFBK by 3.6 during the first quarter, HoldingsChannel reports. The firm owned 345,982 shares of the banks stock after selling 13,066 shares during the quarter. Principal Financial Group Inc.s holdings in Northfield Bancorp were worth 3,872,000 at the end of the most ... 