# EDGAR Filing Document

**Accession Number:** 0001781162
**File Stem:** 0001140361-25-037763
**Filing Date:** 2025-10
**Character Count:** 14221
**Document Hash:** 30311a5dc01f2edf128d84ae77ef88a0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-25-037763.hdr.sgml**: 20251009

**ACCESSION NUMBER**: 0001140361-25-037763

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 15

**CONFORMED PERIOD OF REPORT**: 20251009

**ITEM INFORMATION**: Other Events

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20251009

**DATE AS OF CHANGE**: 20251009

**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:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39128
- **FILM NUMBER:** 251383660

**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

?xml version='1.0' encoding='ASCII'?

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### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

### FORM 8-K

#### CURRENT REPORT

#### Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934
October 9, 2025

Date of Report (date of earliest event reported)

## Momentus Inc.

#### (Exact name of registrant as specified in its charter)

---

| | | |
|:---|:---|:---|
| **Delaware**<br>| **001-39128**<br>| **84-1905538**<br>|
| (State or other jurisdiction of incorporation or organization) | (Commission File Number) | (I.R.S. Employer Identification No.) |

---

---

| | |
|:---|:---|
| **3901 N. First Street**<br>**San Jose, California** | **95134**<br>|
| (Address of Principal Executive Offices) | (Zip Code) |

---

(650) 564-7820

Registrant's telephone number, including area code

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to section 12(g) of the Act:

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| | | |
|:---|:---|:---|
| Title of each class | Trading Symbol(s) | Name of each exchange on which registered |
| Class A common stock<br>| MNTS<br>| The Nasdaq Stock Market LLC<br>|
| Warrants<br>| MNTSW<br>| The Nasdaq Stock Market LLC<br>|

---

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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| | |
|:---|:---|
| **Item 8.01.** | **Other Information.** |

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On October 9, 2025, Momentus Inc. (the "Company") issued the attached press releases announcing that (i) the Company was awarded a $5.1 million contract on September 26, 2025 by NASA's Flight Opportunities program to support the Commercial Orbital System for Microgravity In-Space Crystallization demonstration (the "COSMIC press release") and (ii) the Company was awarded a $2.5 million contract on September 29, 2025 by NASA's Armstrong Flight Research Center to conduct a demonstration on-orbit of a new thruster called the Rotating Detonation Rocket Engine (the "RDRE press release"). The COSMIC press release and the RDRE press release are filed as Exhibits 99.1 and 99.2, respectively, to this Current Report on Form 8-K and are incorporated by reference herein.

---

| | |
|:---|:---|
| **Item 9.01.** | **Financial Statements and Exhibits.** |

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(d) Exhibits

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| | |
|:---|:---|
| **Exhibit Number** | **Exhibit Description** |
| [99.1](ef20056825_ex99-1.htm) | Press Release, dated October 9, 2025, issued by Momentus Inc. |
| [99.2](ef20056825_ex99-2.htm) | Press Release, dated October 9, 2025, issued by Momentus Inc. |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document) |

---

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#### SIGNATURE
**Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.**

---

| | | | |
|:---|:---|:---|:---|
|  |  | By: | /s/ Lon Ensler |
|  |  | Name: | Lon Ensler |
| Dated: | October 9, 2025 | Title: | Chief Financial Officer |

---

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## Exhibit 99.1

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**Exhibit 99.1**<br>

#### Momentus Awarded $5.1M Contract from NASA for Mission to Support Production of Advanced Materials in Space

*To Provide Orbital Platform for NASA's COSMIC Demonstration*

**San Jose, CA — October 9, 2025** — *Momentus Inc. (*NASDAQ: MNTS), a U.S. commercial space company offering satellites, satellite components, and in-space transportation and services, announced today that it was awarded a $5.1 million contract on September 26 by NASA's Flight Opportunities program to support the Commercial Orbital System for Microgravity In-Space Crystallization (COSMIC) demonstration, a pioneering technology designed to leverage the microgravity environment of space to advance crystal growth for pharmaceuticals, semiconductors, and advanced materials.

As part of this mission, Momentus' Vigoride orbital service vehicle will serve as the next-generation orbital platform to host the COSMIC payloads. Vigoride's modular design and precision maneuvering capabilities make it an ideal platform for sustained microgravity experiments and commercial manufacturing in low Earth orbit.

"Momentus is proud to support NASA and the COSMIC mission with our versatile Vigoride platform," said John Rood, CEO of Momentus. "We're excited to play a key role in this flight test that seeks to unlock new frontiers in space-based manufacturing and usher in a new era where microgravity becomes a driver of innovation and economic growth."

A collaborative effort between SpaceWorks Enterprises and Astral Materials, <u>COSMIC was selected in June 2025 as a winner</u> of the NASA TechLeap Prize's <u>Space Technology Payload Challenge</u>. The COSMIC demonstration flight builds on decades of scientific research aboard the International Space Station and is a step toward commercializing in-space production. While on-orbit, SpaceWorks and Astral Materials payload will demonstrate a novel semiconductor manufacturing technology. By partnering with NASA, Momentus aims to accelerate innovation and bring space-enhanced products back to Earth.

#### About Momentus

Momentus is a U.S. commercial space company offering satellites, satellite components, and in-space transportation and infrastructure services. The Company offers satellites to support government and commercial customers for missions like communications, missile tracking, and cutting-edge science missions. Momentus offers services such as hosted payloads, support for in-space assembly, on-orbit servicing and refueling, and transportation of satellites to specific orbits.

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#### Forward-Looking Statements

This press release contains certain statements which may constitute "forward-looking statements" for purposes of the federal securities laws. Forward-looking statements include, but are not limited to, statements regarding the expected filing of the Company's Form 10-K and Form 10-Q and its management team's expectations, hopes, beliefs, intentions or strategies regarding the future, projections, forecasts or other characterizations of future events or circumstances, including any underlying assumptions, and are not guarantees of future performance. Because forward-looking statements relate to the future, they are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict and many of which are outside of Momentus' control. Many factors could cause actual future events to differ materially from the forward-looking statements in this press release, including but not limited to risks and uncertainties included under the heading "Risk Factors" in the Annual Report on Form 10-K filed by the Company on April 9, 2025, as such factors may be updated from time to time in our other filings with the Commission, accessible on the Commission's website at www.sec.gov and the Investor Relations section of our website at investors.momentus.space. Forward-looking statements speak only as of the date they are made. Readers are cautioned not to put undue reliance on forward-looking statements, and, except as required by law, the Company assumes no obligation and does not intend to update or revise these forward-looking statements, whether as a result of new information, future events, or otherwise.

Contact information:

<u>press@momentusspace.com</u>

<u>investors@momentusspace.com</u>

<u>info@spaceworks.aero</u>

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## Exhibit 99.2

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#### Exhibit 99.2<br>

#### Momentus Awarded Contract from NASA to Test Groundbreaking Thruster In Space

**San Jose, CA — October 9, 2025** — *Momentus Inc. (*NASDAQ: MNTS), a U.S. commercial space company offering satellites, satellite components, and in-space transportation and services, today announced that it was awarded a $2.5 million contract on September 29, 2025 by NASA's Armstrong Flight Research Center to conduct a demonstration on-orbit of a new thruster called the Rotating Detonation Rocket Engine (RDRE).

"We're proud to be selected by NASA to perform this key mission to advance the development of transformative space technologies," said John Rood, CEO of Momentus. "This latest contract is the sixth contract we have been awarded in recent months by NASA and along with contracts we are currently executing to support U.S. Defense Department organizations like the Defense Advanced Research Project Agency (DARPA) and the Air Force Research Labs innovation organization SpaceWERX, we are very pleased to be playing major roles on programs at the forefront of space technology."

Under NASA's <u>Space Technology Payload Challenge</u>, the fourth installment in its TechLeap Prize initiative to accelerate the development and flight testing of transformative space technologies, <u>Juno Propulsion was selected to develop the RDRE thruster</u> designed to redefine the state of the art in in-space propulsion. Momentus will provide the Vigoride satellite platform and operate it in space, enabling Juno's RDRE thruster to be tested in orbit. This partnership marks a critical step toward validating the technology in a relevant space environment.

The Juno Propulsion compact RDRE thruster utilizes non-toxic, storable propellants—nitrous oxide and ethane—to deliver high-efficiency thrust with simplified architecture. These propellants are much safer to handle than toxic hydrazine fuels. Unlike conventional engines, RDREs use detonation waves to combust propellants more efficiently, achieving significantly higher specific impulse. With Momentus providing the satellite bus and on-orbit operations on their fifth Vigoride mission, Juno is now positioned to bring RDRE technology to orbit for the first time.

#### About Momentus

Momentus is a U.S. commercial space company offering satellites, satellite components, and in-space transportation and infrastructure services. The Company offers satellites to support government and commercial customers for missions like communications, missile tracking, and cutting-edge science missions. Momentus offers services such as hosted payloads, support for in-space assembly, on-orbit servicing and refueling, and transportation of satellites to specific orbits.

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#### Forward-Looking Statements

This press release contains certain statements which may constitute "forward-looking statements" for purposes of the federal securities laws. Forward-looking statements include, but are not limited to, statements regarding the expected filing of the Company's Form 10-K and Form 10-Q and its management team's expectations, hopes, beliefs, intentions or strategies regarding the future, projections, forecasts or other characterizations of future events or circumstances, including any underlying assumptions, are not guarantees of future performance. Because forward-looking statements relate to the future, they are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict and many of which are outside of Momentus' control. Many factors could cause actual future events to differ materially from the forward-looking statements in this press release, including but not limited to risks and uncertainties included under the heading "Risk Factors" in the Annual Report on Form 10-K filed by the Company on April 9, 2025, as such factors may be updated from time to time in our other filings with the Commission, accessible on the Commission's website at www.sec.gov and the Investor Relations section of our website at investors.momentus.space. Forward-looking statements speak only as of the date they are made. Readers are cautioned not to put undue reliance on forward-looking statements, and, except as required by law, the Company assumes no obligation and does not intend to update or revise these forward-looking statements, whether as a result of new information, future events, or otherwise.

Contact information:

<u>press@momentusspace.com</u>

<br> <u>investors@momentusspace.com</u>

<br> <u>info@junopropulsion.com</u>

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