Momentus MNTS Insider Ownership

Updated Oct 5, 2026

Across the past 12 months, open-market trades by Momentus insiders were all purchases, totaling $35,141.

• A count shows 2 insiders buying MNTS stock on the open market over the past 12 months and none selling.
• Among Momentus' insiders, the largest open-market purchases in the past 12 months were by Chris Hadfield (Director), totaling $22,360, most recently on May 21, 2026.
• Business Quant data shows Momentus insiders holding 98.05K shares in total in their latest Form 4 filings, unchanged from 98.05K shares at the end of Q2 2026.
• Momentus insiders hold 94.55K shares directly (96.43% of their total) and 3.5K shares (3.57%) indirectly, through entities such as trusts and partnerships.
• Per Business Quant, 11 insiders of MNTS hold shares, counting officers, directors and 10% owners who have filed a Form 4 in the past two years.
• Momentus' top three insider holders by shares held are John C. Rood (Chief Executive Officer, 55.47K shares), Jon Layman (Chief Legal Officer, 14.27K shares) and Robert E. Schwarz (Chief Technology Officer, 6.48K shares).
• John C. Rood holds 56.58% of the combined insider position in Momentus.
• Institutional investors held 21.52% of Momentus stock at the end of Q2 2026, while the latest Form 4 filings of its insiders account for about 0.82%; other investors, including the public, hold roughly 77.66%.
• Over the past 12 months, 10 insiders reported transactions in Momentus stock in 19 Form 4 filings.
• This summary of Momentus insider activity covers Form 4 filings through May 22, 2026.