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

Role: Chief Financial Officer
Signature: /s/Jikun Kim
Stock symbol: MNTS
Transactions as of: Dec 20, 2021
Transactions value $: -$18,613
Form type: 4
Date filed: 12/21/2021, 03:24 PM
Previous filing: Nov 26, 2021
Next filing: Jan 20, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MNTS	Class A Common Stock	Options Exercise	$0	+7.64K	+16.74%	$0.00	53.2K	Dec 20, 2021	Direct
transaction	MNTS	Class A Common Stock	Tax liability	-$18.6K	-4.02K	-7.55%	$4.63^*	49.2K	Dec 20, 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	-7.64K	-2.94%	$0.00	252K	Dec 20, 2021	Class A Common Stock	7.64K	$0.00	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.