Dawn A. Harms - 31 Dec 2022 Form 4 Insider Report for Momentus Inc. (MNTS)

Role: Chief Revenue Officer
Signature: /s/ Jikun Kim, Attorney-in-Fact
Issuer symbol: MNTS
Transactions as of: 31 Dec 2022
Net transactions value: -$20,387
Form type: 4
Filing time: 04 Jan 2023, 11:15:14 UTC
Previous filing: 22 Mar 2022
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MNTS	Class A Common Stock	Options Exercise	$0	+49,648	+112%	$0.000000	93,906	31 Dec 2022	Direct
transaction	MNTS	Class A Common Stock	Tax liability	$20,387	-26,140	-28%	$0.7799	67,766	31 Dec 2022	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	MNTS	Restricted Stock Units	Options Exercise	$0	-49,648	-100%	$0.000000^*	0	31 Dec 2022	Class A Common Stock	49,648	$0.000000	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	These shares were withheld by the Issuer in order to satisfy certain tax withholding obligations in connection with the issuance of vested restricted stock units.
F2	The RSU Award will vest in three equal installments on November 20, 2021, December 31, 2021, and December 31, 2022, subject to Executive's continued Employment through each such vesting date.