InsiderTrades

Form 4 for MNTS Momentus Inc.

Accepted 2026-05-21 19:24:11 ET · period of report 2026-05-19 · accession 0002018153-26-000003 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2026-05-21 19:24 2026-05-19 MNTS Ensler Lon CFO A - Grant $0.00 +5,405 5,405 New $0
D 2026-05-21 19:24 2026-05-19 MNTS Ensler Lon CFO A - Grant $0.00 +15.1K 23.6K +178% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Class A Common Stock 2026-05-19 A A 5,405 $0.00 5,405 D — —
2 Derivative Restricted Stock Units 2026-05-19 A A 15,107 $0.00 23,593 D — · — to — 15,107 Class A Common Stock (F1) Each Restricted Stock Unite (RSU) represents a contingent right to receive one share of Momentus Inc. Class A Common Stock. (F2) Represents a grant of RSUs, which vest in three equal annual installments from Vesting Commencement Date, subject to Executive's continued Employment through each such vesting date. (F2) Represents a grant of RSUs, which vest in three equal annual installments from Vesting Commencement Date, subject to Executive's continued Employment through each such vesting date.