    <SEC-DOCUMENT>0001140361-25-038678-index.html : 20251020
    <SEC-HEADER>0001140361-25-038678.hdr.sgml : 20251020
    <ACCEPTANCE-DATETIME>20251020172730
    ACCESSION NUMBER:		0001140361-25-038678
    CONFORMED SUBMISSION TYPE:	424B5
    PUBLIC DOCUMENT COUNT:		2
    FILED AS OF DATE:		20251020
    DATE AS OF CHANGE:		20251020

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Momentus Inc.
    		CENTRAL INDEX KEY:			0001781162
    		STANDARD INDUSTRIAL CLASSIFICATION:	GUIDED MISSILES & SPACE VEHICLES & PARTS [3760]
    		ORGANIZATION NAME:           	04 Manufacturing
    		EIN:				841905538
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		424B5
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-290425
    		FILM NUMBER:		251404823

    	BUSINESS ADDRESS:
    		STREET 1:		3901 N. FIRST STREET
    		CITY:			SAN JOSE
    		STATE:			CA
    		ZIP:			95134
    		BUSINESS PHONE:		6505647820

    	MAIL ADDRESS:
    		STREET 1:		3901 N. FIRST STREET
    		CITY:			SAN JOSE
    		STATE:			CA
    		ZIP:			95134

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	Stable Road Acquisition Corp.
    		DATE OF NAME CHANGE:	20190628
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>424B5
    <SEQUENCE>1
    <FILENAME>ny20047547x38_424b5.htm
    <DESCRIPTION>424B5
    <TEXT>
    Document 1 - file: ny20047547x38_424b5.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>ny20047547x38_img01.jpg
    <TEXT>
    Document 2 - file: ny20047547x38_img01.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>