4processed

Form 4 — Insider Transaction

Momentus Inc.(MNTSW)

Filing Date

May 19, 2026

Accepted

May 19, 2026

Accession No.

0002018153-26-000003

CIK

0001781162

Insider Transactions

InsiderTitleTypeSharesPriceValueOwned AfterSecurityDate
Ensler LonChief Financial OfficerOther5.4K$05.4KClass A Common StockMay 19, 2026
Ensler LonChief Financial OfficerOther15.1K$023.6KRestricted Stock UnitsMay 19, 2026