NEW YORK, Sept. 09, 2019 (GLOBE NEWSWIRE) -- Halper Sadeh LLP, a global investor rights law firm, announces it is investigating the following companies: Oritani Financial Corp. (NASDAQ: ORIT) The investigation concerns whether Oritani and its board of directors violated the federal securities laws and/or breached their fiduciary duties to shareholders in connection with the proposed sale of Oritani to Valley National Bancorp for 1.60 shares of Valley common stock for each share of Oritani common stock.