Jikun Kim - 20 Dec 2021 Form 4 Insider Report for Momentus Inc. (MNTS)

Role: Chief Financial Officer
Signature: /s/Jikun Kim
Issuer symbol: MNTS
Transactions as of: 20 Dec 2021
Net transactions value: -$18,613
Form type: 4
Filing time: 21 Dec 2021, 15:24:34 UTC
Previous filing: 26 Nov 2021
Next filing: 20 Jan 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	+7,635	+17%	$0.000000	53,241	20 Dec 2021	Direct
transaction	MNTS	Class A Common Stock	Tax liability	$18,613	-4,020	-7.6%	$4.63^*	49,221	20 Dec 2021	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	-7,635	-2.9%	$0.000000	251,944	20 Dec 2021	Class A Common Stock	7,635	$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 29.2% of the total number of RSUs upon November 20, 2021. As to the balance of the 70.8% of the total number of RSUs, these RSUs will vest monthly on the 20th of each month, evenly split (70.8%/34) across the following 34 months, subject to Executive's continued Employment through each such vesting date.