Momentus (MNTS) shares are heading for their best month on record following a notable insider purchase. Former astronaut and company director Chris Hadfield acquired 2,000 shares at $7.19 each on May 21. This transaction increased his total holdings to 3,500 shares.

Broader space sector excitement also drives the rally after a recent SpaceX IPO filing. Momentus relies on SpaceX missions to launch its spacecraft.

The company’s outlook includes a strong revenue forecast for 2026. Momentus is also reporting an expanding pipeline of government contracts.