Mark A. Schlossberg has been appointed general counsel and senior vice president of Impax Laboratories. Schlossberg previously served as vice president and associate general counsel for Amgen Inc., where he was responsible for areas of corporate governance and securities law, licensing, mergers and acquisitions, sales and marketing, and global operations.

The Howard Hughes Corp. has named Peter F. Riley senior vice president, general counsel and secretary. Riley has been a partner at K&L Gates since 2004 and previously led the tax department at Kelly, Hart & Hallman. He also served as senior tax counsel at Simpson Thacher & Bartlett.