# EDGAR Filing Document

**Accession Number:** 0001781162
**File Stem:** 0001140361-25-024111
**Filing Date:** 2025-6
**Character Count:** 13239
**Document Hash:** b00eb1b7dc77a6e6d01b8968cf7dd4ee
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-25-024111.hdr.sgml**: 20250630

**ACCESSION NUMBER**: 0001140361-25-024111

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 15

**CONFORMED PERIOD OF REPORT**: 20250630

**ITEM INFORMATION**: Other Events

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20250630

**DATE AS OF CHANGE**: 20250630

**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:** 251088970

**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'?

#### 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
June 30, 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 <br> 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:

---

| | | |
|:---|:---|:---|
| 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.** |

---

On June 30, 2025, Momentus Inc. (the "Company") issued the attached press releases regarding business developments. The press releases are filed as Exhibits 99.1 and 99.2 to this Current Report on Form 8-K and are incorporated by reference herein.

---

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

---

(d) Exhibits

---

| | |
|:---|:---|
| **Exhibit Number** | **Exhibit Description** |
| [99.1](ny20047547x20_ex99-1.htm) | Press Release, dated June 30, 2025, issued by Momentus Inc. |
| [99.2](ny20047547x20_ex99-2.htm) | Press Release, dated June 30, 2025, issued by Momentus Inc. |
| 104 | Cover Page Interactive Data File (formatted in Inline XBRL and contained in Exhibit 101) |

---

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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:June 30, 2025 | Title: | Interim Chief Financial Officer |

---

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## Exhibit 99.1

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#### Exhibit 99.1

#### Momentus Awarded NASA Contract for In-Space Power System Demonstration

*Powering the Future of Space: Advancing In-Orbit Assembly with Next-Generation Electric Systems*

SAN JOSE, Calif., June 30, 2025--(BUSINESS WIRE)— Momentus Inc. (NASDAQ: MNTS) ("Momentus" or the "Company"), a U.S. commercial space firm specializing in satellite solutions, transportation, and in-space infrastructure, has been awarded a contract by the National Aeronautics and Space Administration (NASA). The agreement will support the demonstration of a Power Processing Unit (PPU) for Hall Thrusters based upon CisLunar Industries' Modular Configurable Electric Power Converter (MCEPC) technologies, designed to advance high Delta V Dynamic Maneuver and in-space assembly (ISAM) operations.

The expansion of space infrastructure demands sustainable and scalable electric power solutions that enhance efficiency while minimizing weight and size. Efficient power generation exceeding **1 kW** is essential for high Delta V Dynamic Maneuvering, sensing, and ISAM applications, necessitating advancements in conversion technologies.

Under the new contract managed by NASA's Flight Opportunities program based at the agency's Armstrong Flight Research Center in Edwards, California, Momentus will host a **payload from CisLunar Industries** to conduct in-orbit testing of next-generation PPU technology and power management systems. This PPU payload will be among several payloads that Momentus will carry aboard its Vigoride 7 Orbital Service Vehicle scheduled for launch no earlier than February 2026 on a SpaceX Transporter mission to Low Earth Orbit. The mission will validate the technology's performance, with real-time data transmissions to **Momentus mission operations**, enabling updates to PPU operating conditions in support of NASA's ISAM objectives.

By demonstrating cutting-edge power conversion technologies in orbit, Momentus and CisLunar Industries are taking a crucial step towards enabling scalable in-space infrastructure. This mission not only advances NASA's ISAM objectives but also underscores the importance of efficient power management for future dual-use orbital operations and next-generation space operations.

#### 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.**

#### 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.

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## Exhibit 99.2

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#### Exhibit 99.2

#### Momentus Wins Contract in Highly Competitive U.S. Space Force SpaceWERX Sustained Space Maneuver Challenge

#### Mission Demonstrates Low-Cost Multi-Spectral Rendezvous Technology

**SAN JOSE, Calif.—June 30, 2025**—*Momentus Inc.* (NASDAQ: MNTS), a U.S. commercial space company offering satellite buses and in-space infrastructure services, today announced it has signed a $1.86M Direct to Phase II Small Business Innovation Research (SBIR) contract with SpaceWERX, the innovation arm of the U.S. Space Force. The award supports the in-space flight demonstration of a novel, low-cost multi-spectral sensor suite for Rendezvous and Proximity Operations (RPO), scheduled for early 2026.

Under this contract, Momentus will demonstrate an internally developed RPO system equipped with optical, infrared, and lidar sensors. The technology integrates machine vision algorithms and advanced data fusion used to guide the safe and autonomous approach of a spacecraft to an uncharacterized object in low Earth orbit.

"This contract marks a major milestone in advancing cost-effective, autonomous in-space operations," said *John Rood*, Chief Executive Officer of Momentus. "We're honored to support the U.S. Space Force and Department of the Air Force in developing the advanced capabilities needed to support their plans for dynamic space operations such as orbital servicing and refueling of satellites, assembly of structures in space, and debris mitigation."

The flight demonstration will take place aboard SpaceX's Transporter-16 rideshare mission scheduled for launch no earlier than February 2026, where Momentus will host the RPO payload on its *Vigoride* orbital service vehicle. The demonstration will be conducted alongside a group of commercial and Department of Defense customers.

The project stems from the SpaceWERX Sustained Space Maneuver Challenge launched in 2024, where Momentus' proposal was selected out of numerous challengers for a Direct to Phase II award following a competitive evaluation. Contract negotiations were concluded in early June 2025.

**About Momentus Inc.** Momentus is a U.S. commercial space company that provides satellite buses and in-space infrastructure services, including in-space transportation, hosted payloads, and orbital delivery solutions for microsatellites and CubeSats.

#### 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.

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