Clarify Medical Inc., of San Diego, has appointed John Schellhorn as president, CEO and director.

Dih Technology Co., of Norwell, Mass., has appointed Vaseem Mahboob as executive vice president and chief financial officer.

Fast Biomedical Inc., of Indianapolis, added Gregory Brown to the board.

Sera Prognostics Inc., of Salt Lake City, said Jay Moyes is the new chief financial officer.

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