# EDGAR Filing Document

**Accession Number:** 0001781162
**File Stem:** 0001140361-26-022579
**Filing Date:** 2026-5
**Character Count:** 20577
**Document Hash:** 16b294a6d1494cf5b44705545c1abbb7
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-26-022579.hdr.sgml**: 20260622

**ACCESSION NUMBER**: 0001140361-26-022579

**CONFORMED SUBMISSION TYPE**: S-8

**PUBLIC DOCUMENT COUNT**: 14

**FILED AS OF DATE**: 20260522

**DATE AS OF CHANGE**: 20260522

**EFFECTIVENESS DATE**: 20260522

**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:** S-8
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-296162
- **FILM NUMBER:** 261013005

**BUSINESS ADDRESS:**
- **STREET 1:** 1762 AUTOMATION PARKWAY
- **CITY:** SAN JOSE
- **STATE:** CA
- **ZIP:** 95131
- **BUSINESS PHONE:** 6505647820

**MAIL ADDRESS:**
- **STREET 1:** 1762 AUTOMATION PARKWAY
- **CITY:** SAN JOSE
- **STATE:** CA
- **ZIP:** 95131

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Stable Road Acquisition Corp.
- **DATE OF NAME CHANGE:** 20190628

#### As filed with the Securities and Exchange Commission on May 22, 2026.

#### Registration No. 333-<br>

### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

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### FORM S-8

#### REGISTRATION STATEMENT

#### UNDER

#### THE SECURITIES ACT OF 1933

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## MOMENTUS INC.

#### (Exact Name of Registrant as Specified in Its Charter)

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---

| | | |
|:---|:---|:---|
| **Delaware** | **3714** | **84-1905538** |
| **(State or Other Jurisdiction of**<br> **Incorporation or Organization)** | **(Primary Standard Industrial**<br> **Classification Code Number)** | **(I.R.S. Employer**<br> **Identification Number)** |

---

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#### <br>

#### 1762 Automation Parkway

#### San Jose, CA 95131
(650) 564-7820

#### (Address, Including Zip Code, and Telephone Number, Including Area Code, of Registrant's Principal

#### Executive Offices)

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#### <br>

#### Momentus Inc. 2021 Equity Incentive Plan

#### (Full Title of the Plans)

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#### <br>

#### John C. Rood

#### Chief Executive Officer

#### 1762 Automation Parkway

#### San Jose, CA 95131

#### Telephone: (650) 564-7820

#### (Name, Address, Including Zip Code, and Telephone Number, Including Area Code, of Agent for Service)

#### Copies to:

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| | |
|:---|:---|
| **Stephen C. Hinton, Esq.**<br> **Bradley Arant Boult Cummings LLP**<br> **ONE 22 ONE**<br> **1221 Broadway**<br> **Nashville, Tennessee 37203**<br> **Telephone: (615) 244-2582** | **Lon Ensler**<br> **Chief Financial Officer**<br> **1762 Automation Parkway**<br> **San Jose, CA 95131**<br> **Telephone: (650) 564-7820** |

---

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer ☐ Accelerated filer ☐ <br> Non-accelerated filer ☒ Smaller reporting company ☒ <br> 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 7(a)(2)(B) of the Securities Act. ☐

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#### EXPLANATORY NOTE
This Registration Statement on Form S-8 is being filed by Momentus Inc. (the "**Company**") to register 500,000 additional shares of the Company's Class A Common Stock, par value $0.00001 per share ("**Common Stock**"), reserved for issuance under the Company's 2021 Equity Incentive Plan (the "**2021 Plan**"), which was approved by our stockholders at the 2026 Annual Meeting of Stockholders held on May 19, 2026.

Pursuant to General Instruction E regarding Registration of Additional Securities, the contents of the Registration Statements on Form S-8 filed with the Securities and Exchange Commission (the "**Commission**") on February 2, 2026 (Registration No. 333-293128), May 30, 2025 (Registration No. 333-287706), March 23, 2023 (Registration No. 333-270762), March 14, 2022 (Registration No. 333-263524), and October 18, 2021 (Registration No. 333-260331) are incorporated by reference herein except as otherwise updated or modified by this filing. All exhibits required by General Instruction E to Form S-8 are filed as exhibits hereto.

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#### PART II

#### INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

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| | |
|:---|:---|
|  **Item 3.**  | **Incorporation of Documents by Reference** |

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The Registrant hereby incorporates by reference into this Registration Statement the following documents previously filed with the Commission (other than information in a report on Form 8-K that is furnished and not filed pursuant to Form 8-K and, except as may be noted in any such Form 8-K, exhibits filed on such form that are related to such information): <br>

(i) The Registrant's [Annual Report on Form 10-K](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001781162/000162828026022291/mnts-20251231.htm) for the fiscal year ended December 31, 2025 (the "**Annual Report**"), filed with the Commission on March 31, 2026;

<br> (ii) our [Definitive Proxy Statement on Schedule 14A](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001781162/000114036126014277/ny20066708x1_def14a.htm)filed with the Commission on April 10, 2026;

<br> (iii) our [Quarterly Report on Form 10-Q](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001781162/000162828026034490/mnts-20260331.htm) for the quarterly period ended March 31, 2026, filed with the Commission on May 13, 2026;

(iv) All other reports filed by the Registrant with the Commission pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934, as amended (the "**Exchange Act**") (other than the reports, or portions thereof, deemed to have been furnished and not filed with the Commission) since the end of the fiscal year covered by the Annual Report referred to in (i) above;

(v) the description of our securities contained in [Exhibit 4.19](https://www.sec.gov/Archives/edgar/data/1781162/000114036125014782/ny20047547x1_ex4-19.htm) to our Registration Statement on Form S-1, as filed with the Commission on April 22, 2025, and including any further amendment or report filed for the purpose of updating such description; and

(vi) our Current Reports filed on Form 8-K with the Commission on [January 9, 2026](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001781162/000114036126000853/ef20062616_8k.htm), [January 13, 2026](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001781162/000114036126001016/ef20062613_8k.htm), [February 12, 2026](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001781162/000114036126004972/ef20065509_8k.htm), [February 20, 2026](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001781162/000114036126006335/ef20066258_8k.htm), [April 13, 2026](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001781162/000114036126014365/ef20070362_8k.htm), [April 16, 2026](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001781162/000114036126014988/ef20070575_8k.htm), [April 20, 2026](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001781162/000114036126015530/ef20070972_8k.htm), [May 5, 2026](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001781162/000114036126019009/ef20072374_8k.htm), and [May 22, 2026](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001781162/000114036126022497/ef20074640_8k.htm).

All documents filed by the Registrant pursuant to Sections 13(a), 13(c), 14, and 15(d) of the Exchange Act after the date of this Registration Statement and prior to the filing of a post-effective amendment which indicates that all securities offered hereby have been sold or which deregisters all securities then remaining unsold shall be deemed to be incorporated by reference into this Registration Statement and to be a part hereof from the date of filing of such documents; provided, however, that documents or information deemed to have been furnished, and exhibits furnished in connection with such items, and not filed in accordance with the rules of the Commission shall not be deemed incorporated by reference into this Registration Statement.

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| | |
|:---|:---|
|  **Item 8.**  | **Exhibits** |

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  |  | **Incorporated by Reference** | **Incorporated by Reference** | **Incorporated by Reference** | **Incorporated by Reference** | |
| **Exhibit**<br> **Number** | **Exhibit Title** | **Form** | **File No.** | **Exhibit** | **Date** | <br>**Filed**<br> **Herewith** |
| [5.1](ef20074675_ex5-1.htm) | Opinion of Bradley Arant Boult Cummings LLP as to the validity of the securities being registered. |  |  |  |  | X |
| [23.1](ef20074675_ex23-1.htm) | Consent of Frank, Rimerman + Co. LLP, independent registered public accounting firm. |  |  |  |  | X |
| [23.2](ef20074675_ex5-1.htm) | Consent of Bradley Arant Boult Cummings LLP (included in Exhibit 5.1). |  |  |  |  | X |
| [24.1](#POWEROFATTORNEY) | Power of Attorney (filed as part of signature page hereto). |  |  |  |  | X |
| [99.1](https://www.sec.gov/Archives/edgar/data/1781162/000121390021043676/ea146069ex10-5_momentusinc.htm) | Momentus Inc. 2021 Equity Incentive Plan. | 8-K | 001-39128 | 10.5 | August 18, 2021 |  |
| [99.2](https://www.sec.gov/Archives/edgar/data/1781162/000114036125019803/ef20049298_ex10-1.htm) | First Amendment to Momentus Inc. 2021 Equity Incentive Plan. | 8-K | 001-39128 | 10.1 | May 20, 2025 |  |
| [99.3](https://www.sec.gov/Archives/edgar/data/1781162/000114036126022497/ef20074640_ex10-1.htm) | Second Amendment to Momentus Inc. 2021 Equity Incentive Plan. | 8-K | 001-39128 | 10.1 | May 22, 2026 |  |
| [107.1](ef20074675_ex107.htm) | Filing Fee Table. |  |  |  |  | X |

---

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**SIGNATURES**

Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of San Jose, State of California, on May 22, 2026.

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| | | |
|:---|:---|:---|
|  | **Momentus Inc.** | **Momentus Inc.** |
| Date: May 22, 2026 | By: | /s/ John C. Rood |
|  | Name: | John C. Rood |
|  | Title: | Chief Executive Officer and Chairperson of the Board of Directors |

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#### POWER OF ATTORNEY

**KNOW ALL PERSONS BY THESE PRESENTS**, that the undersigned officers and directors of Momentus Inc., a Delaware corporation, do hereby constitute and appoint John C. Rood and Lon Ensler, and each of them, the lawful attorneys-in-fact and agents with full power and authority to do any and all acts and things and to execute any and all instruments which said attorneys and agents, and any one of them, determine may be necessary or advisable or required to enable said corporation to comply with the Securities Act of 1933, as amended, and any rules or regulations or requirements of the Securities and Exchange Commission in connection with this Registration Statement. Without limiting the generality of the foregoing power and authority, the powers granted include the power and authority to sign the names of the undersigned officers and directors in the capacities indicated below to this Registration Statement, to any and all amendments, both pre-effective and post-effective, and supplements to this Registration Statement, and to any and all instruments or documents filed as part of or in conjunction with this Registration Statement or amendments or supplements thereof, and each of the undersigned hereby ratifies and confirms that all said attorneys and agents, or any one of them, shall do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed by the following persons on behalf of the Registrant in the capacities and on the dates indicated.

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| | | |
|:---|:---|:---|
| **Signature** | **Title** | **Date** |
| /s/ John C. Rood | Chief Executive Officer and Chairman of the Board of Directors<br> (*Principal Executive Officer*) | May 22, 2026 |
| John C. Rood | Chief Executive Officer and Chairman of the Board of Directors<br> (*Principal Executive Officer*) | May 22, 2026 |
| /s/ Lon Ensler | Chief Financial Officer<br> (*Principal Financial and Accounting Officer*) | May 22, 2026 |
| Lon Ensler | Chief Financial Officer<br> (*Principal Financial and Accounting Officer*) | May 22, 2026 |
| /s/ Chris Hadfield | Director | May 22, 2026 |
| Chris Hadfield | Director | May 22, 2026 |
| /s/ Brian Kabot | Director | May 22, 2026 |
| Brian Kabot | Director | May 22, 2026 |
| /s/ Mitchel Kugler | Director | May 22, 2026 |
| Mitchel Kugler | Director | May 22, 2026 |
| /s/ Victorino Mercado | Director | May 22, 2026 |
| Victorino Mercado | Director | May 22, 2026 |
| /s/ Kimberly A. Reed | Director | May 22, 2026 |
| Kimberly A. Reed | Director | May 22, 2026 |
| /s/ Linda J. Reiners | Director | May 22, 2026 |
| Linda J. Reiners | Director | May 22, 2026 |

---

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## Exhibit 5.1

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#### Exhibit 5.1<br>

![](image00001.jpg)

May 22, 2026

Momentus Inc.

1762 Automation Parkway

San Jose, California 95131

Ladies and Gentlemen:

We have acted as special counsel to Momentus Inc., a Delaware corporation (the "***Company***"), in connection with the proposed issuance by the Company of up to 500,000 shares (the "***Shares***") of the Company's Class A common stock, par value $0.00001 per share ("***Common Stock***"), pursuant to the Momentus Inc. 2021 Equity Incentive Plan, as amended (the "***2021 Plan***"). The Shares are included in the Company's Registration Statement on Form S-8 (the "***Registration Statement***"), filed by the Company with the U.S. Securities and Exchange Commission (the "***SEC***") under the provisions of the Securities Act of 1933, as amended (the "***Securities Act***"), on the date hereof. This opinion is being delivered to you in accordance with the requirements of Item 601(b)(5) of Regulation S-K under the Securities Act.

In connection with rendering the opinion set forth in this opinion letter, we have reviewed the Registration Statement, the 2021 Plan, and the originals, or photostatic or certified copies, of such records of the Company and certificates of officers of the Company, certificates of public officials and such other documents as we have deemed relevant and necessary as a basis for the opinion expressed herein.

In our examination, we have assumed the genuineness of all signatures, the legal capacity and competency of all natural persons, the authenticity of all documents submitted to us as originals, the conformity to all original documents of all documents submitted to us as copies and the accuracy and completeness of all information provided to us by the Company.

We have also assumed, without independent investigation, that at the time of the issuance of the Shares: (i) all of the terms and conditions for such issuance set forth in the 2021 Plan and any related agreements will have been fully satisfied, waived or discharged; (ii) each award agreement setting forth the terms of each award granted pursuant to the 2021 Plan will be consistent with the 2021 Plan and will have been duly authorized and validly executed and delivered by the parties thereto; (iii) a sufficient number of shares of Common Stock will remain available for issuance; and (iv) the legal consideration payable in connection with the issuance of the Shares pursuant to the 2021 Plan will not be less than the par value of the Common Stock and will be otherwise proper and sufficient.

Based upon the foregoing and the other matters stated herein, we are of the opinion that, when issued and delivered in accordance with the terms set forth in the 2021 Plan and against payment of the consideration therefor, the issuance of the Shares will have been duly authorized by all necessary corporate action of the Company, and the Shares will be validly issued, fully paid and nonassessable.

We render no opinion herein as to matters involving the laws of any jurisdiction other than the General Corporation Law of the State of Delaware, as amended (the "***DGCL***"), and the United States of America. This opinion is limited to the current DGCL and the current federal laws of the United States, and to the facts as they exist on the date hereof. We assume no obligation to revise or supplement our opinion should the present laws, or the interpretations thereof, be changed in respect of any circumstances or events that occur subsequent to the date hereof. This opinion letter is limited to the opinion expressly stated herein, and no other opinions are to be inferred or implied.

Bradley Arant Boult Cummings LLP \| One Federal Place \| 1819 Fifth Avenue North \| Birmingham, AL 35203-2119 \| 205.521.8000 \| bradley.com

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We hereby consent to the filing of this opinion with the SEC as an Exhibit to the above-referenced Registration Statement. In giving this consent, we do not hereby admit that we are within the category of persons whose consent is required under Section 7 of the Securities Act or the rules and regulations of the SEC promulgated thereunder.

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| |
|:---|
| Very truly yours, |
| /s/ Bradley Arant Boult Cummings LLP |

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## Exhibit 23.1

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#### Exhibit 23.1

#### CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of our report dated March 31, 2026, relating to the consolidated financial statements of Momentus Inc. and Subsidiaries, appearing in the Annual Report on Form 10-K of Momentus Inc. for the year ended December 31, 2025.

/s/ Frank, Rimerman + Co. LLP

San Francisco, California

May 22, 2026

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## Ex-Filing

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

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**Exhibit 107**

**CALCULATION OF FILING FEE TABLE**

**Form S-8**

(Form Type)

**Momentus Inc.**

(Exact Name of Registrant as Specified in its Charter)

**<u>Table 1: Newly Registered Securities</u>**

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| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| **Security Type** | **Security Class Title** | **Fee Calculation Rule** | **Amount Registered<sup>(1)</sup>** | **Proposed Maximum Offering <br>Price Per Share<sup>(2)</sup>** | **Maximum Aggregate<br>Offering Price<sup>(2)</sup>** | **Fee Rate** | &nbsp;&nbsp; **Amount of Registration Fee<sup>(3)</sup>** |
| Equity | Class A Common Stock, par value $0.00001 per share | Rule 457(c) and Rule 457(h) | 500000 | $5.45 | $2725000.00 | 0.0001381 | $376.32 |
| &nbsp;&nbsp; **Total Offering Amounts** | &nbsp;&nbsp; **Total Offering Amounts** | &nbsp;&nbsp; **Total Offering Amounts** | &nbsp;&nbsp; **Total Offering Amounts** |  | $2725000.00 |  | $376.32 |
| &nbsp;&nbsp; **Total Fee Offsets** | &nbsp;&nbsp; **Total Fee Offsets** | &nbsp;&nbsp; **Total Fee Offsets** | &nbsp;&nbsp; **Total Fee Offsets** |  |  |  | $0 |
| &nbsp;&nbsp; **Net Fee Due** | &nbsp;&nbsp; **Net Fee Due** | &nbsp;&nbsp; **Net Fee Due** | &nbsp;&nbsp; **Net Fee Due** |  |  |  | $376.32 |

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(1) Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the "Securities Act"), this Registration Statement shall also cover any additional securities that may be offered or issued pursuant to the Momentus Inc. 2021 Equity Incentive Plan (the "2021 Plan") as a result of adjustments for stock dividends, stock splits or similar transactions effected without receipt of consideration, that increase the number of outstanding shares of the Class A common stock, par value $0.00001 per share (the "Common Stock") of Momentus Inc. (the "Company").

(2) Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(c) and Rule 457(h) of the Securities Act, based upon the average of the high and low sales prices of the Common Stock on the Nasdaq Capital Market on May 15, 2026.

(3) The Company is registering 500,000 shares of Common Stock relating to the 2021 Plan. Pursuant to General Instruction E to Form S-8, the fee set forth in the table above is only with respect to those additional shares.

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