Mountain Crest Acquisition Corp. IV Common Stock. Replay the stock market charts of MCAF day by day, back to 2003. Open long and short positions without spending any money. Mountain Crest Acquisition Corp. IV does not have significant operations. It intends to effect a merger, share exchange, asset acquisition, share purchase, reorganization, or similar business combination with one or more businesses. The company was incorporated in 2021 and is based in New York, New York.