Reiners Linda J. 4

What Happened
Linda J. Reiners, a member of Momentus Inc.'s Board of Directors, acquired two types of derivative-related awards on May 18, 2026: she converted or exercised 913 derivative units into shares (transaction code M) and was granted 6,039 Restricted Stock Units (RSUs) (transaction code A). Both items are reported at $0.00 per share in the Form 4 because they are derivative awards (RSUs/converted units), not open-market cash purchases or sales.

Key Details

• Transaction date(s): May 18, 2026; Form 4 filed May 20, 2026. The filing appears timely (filed within two business days).
• Transactions reported:
  • Conversion/exercise of derivative (M): 913 shares acquired at $0.00 each.
  • Grant/award of RSUs (A): 6,039 RSUs granted at $0.00 each.
• Shares owned after the transaction: Not specified in the supplied filing excerpt.
• Footnotes of note:
  • F1: Each RSU represents a contingent right to receive one share of Momentus Class A common stock.
  • F2: The 6,039 RSUs vest in full on the earlier of May 18, 2027 or the company’s 2027 Annual Meeting, subject to continued board service.
• No indication in the filing that shares were sold immediately (no cashless sale noted).

Context

• RSUs and derivative conversions reported at $0 often reflect non-cash awards or conversions rather than market purchases; their eventual economic value depends on vesting and the underlying stock price when shares are delivered.
• This filing reports an acquisition of derivative securities/awards by a director, which is routine for compensation and retention; it is not a public-market purchase or sale that directly signals immediate bullish or bearish insider trading.