John Halloran

SierraConstellation Partners LLC is a national interim management and advisory firm that serves middle-market companies and their partners and investors. The private company is based in Los Angeles, CA, and has a presence in several other locations. SierraConstellation Partners specializes in helping companies navigate through difficult business challenges by providing effective operational improvements and financial solutions. The team of senior professionals at SierraConstellation Partners has decades of experience operating and advising companies, including former CEOs, COOs, CFOs, private equity investors, and investment bankers. The company was founded by Lawrence R. Perkins, who has been the CEO since incorporation.

PLx Pharma, Inc. is a late-stage specialty pharmaceutical company, which engages in the development and commercialization of a technology platform for approved drugs. It offers the PLxGuard delivery system, which uses surface acting lipids, such as phospholipids and free fatty acids, to modify the physiochemical properties of various drugs with a targeted release to select portions of the gastrointestinal (GI) tract. The company was founded by Ronald R. Zimmerman on November 12, 2002 and is headquartered in Dover, DE.