TABLE OF CONTENTS As filed with the Securities and Exchange Commission on December 19, 2025. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 MOMENTUS INC. (Exact Name of Registrant as Specified in Its Charter) (State or Other Jurisdiction of Incorporation or Organization) (Primary Standard Industrial Classification Code Number) Delaware 3714 84-1905538 (I.R.S. Employer Identification Number) 3901 N ...

Core Insights - Momentus (MNTS) shares experienced a 20% increase on October 14 following a new agreement with NASA, coinciding with NASA's organizational restructuring that includes job reductions, potentially benefiting private contractors like Momentus [1][3]. Company Overview - Momentus operates in the space infrastructure services sector, offering a diverse portfolio that includes satellite solutions, in-space transportation, and orbital infrastructure, positioning the company favorably in the growing commercial space market [3][4]. - The company serves both government and commercial clients across various space missions, which creates multiple revenue streams and growth opportunities [4]. Recent Performance - Momentus stock has been lucrative for high-risk investors, trading over 50% above its year-to-date low from mid-August [2]. - The recent NASA deal has validated Momentus' business model, making the stock attractive for speculative investors interested in in-space logistics and satellite servicing [3][4]. Challenges and Concerns - Despite the excitement surrounding the NASA agreement, there are concerns regarding the stock's surge, as Momentus shares were trading near the $1 level prior to the rally, indicating potential delisting risks [5]. - The absence of Wall Street coverage raises questions about institutional confidence in Momentus' business model and financial transparency [6]. - The company has faced execution challenges, regulatory setbacks, and issues with its orbital service vehicle, Vigoride, which has led to doubts about scalability and revenue generation [6][7]. - Momentus currently lacks consistent cash flow and proven commercial traction, making it more reliant on speculative interest rather than solid fundamentals [7].

Core Insights - Momentus Inc. has signed a contract to conduct a demonstration mission for Pulsar's Hall Effect Thruster technology, indicating a strategic partnership with UK-based Pulsar Fusion [1] Company Summary - Momentus Inc. is a U.S. company that provides satellites, satellite components, and transportation and on-orbit services [1] - The demonstration mission will be launched aboard Momentus' Vigoride orbital vehicle [1] Industry Summary - The partnership with Pulsar Fusion highlights advancements in propulsion technology within the satellite and space transportation industry [1]