Premier Inc. has filed plans for an initial public offering of up to $100 million in common stock, as the hospital-owned health-care alliance aims to raise proceeds for working capital and general corporate purposes. The company is owned by 181 U.S. hospitals, health systems and other health-care organizations and upon completion of a planned reorganization, all of those owners will own Class B stock in Premier. Premier's alliance was formed in 1996 through a merger, though the oldest entity of that group had existed in 1969. About 72% of Premier's member owners have been part of the company's alliance for more than 10 years. [Registration required.]