• Momentus director Brian Kabot increased his direct holding in Class A common stock to 4,458 shares.
• Purchase of 250 shares at USD 5.62 per share.
• Receipt of 6,039 restricted stock units, each convertible into one share of Class A common stock, vesting in full on the earlier of May 18, 2027 or the 2027 annual meeting, subject to continued board service.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Momentus Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001786113-26-000004), on May 20, 2026, and is solely responsible for the information contained therein.