Momentus Inc. Class A Common Stock. Replay the stock market charts of MNTS day by day, back to 2003. Open long and short positions without spending any money. Momentus Inc., together with its subsidiaries, operates as a commercial space company. The company focuses on providing in-space infrastructure services, including in-space transportation, hosted payloads, and in-orbit services. Its principal and target customers include satellite operators. The company is headquartered in San Jose, California.