Filed by Stable Road Acquisition Corp. pursuant to Rule 425

under the Securities Act of 1933

and deemed filed pursuant to Rule 14a-12

under the Securities Exchange Act of 1934

Subject Company: Stable Road Acquisition Corp. (File No. 001-39128)

The following communication was made available by Momentus Inc. on Twitter on April 19, 2021.

Forward-Looking Statements

This communication may contain a number of “forward-looking statements” as defined in the Private Securities Litigation Reform Act of 1995. Forward-looking statements include statements about the expected timing of the completion of the proposed business combination, information concerning Stable Road Acquisition Corp. (the “Parent”) or Momentus Inc.’s (the “Company’s”) projected future results of operations, revenues, business strategies, and the expected timing of Momentus Inc.’s first mission. These forward-looking statements are based on Parent’s or the Company’s management’s current expectations, estimates, projections and beliefs, as well as a number of assumptions concerning future events. When used in this press release, the words “estimates,” “projected,” “expects,” “anticipates,” “forecasts,” “plans,” “intends,” “believes,” “seeks,” “may,” “will,” “should,” “future,” “propose” and variations of these words or similar expressions (or the negative versions of such words or expressions) are intended to identify forward-looking statements.

These forward-looking statements are not guarantees of future performance, conditions or results, and involve a number of known and unknown risks, uncertainties, assumptions and other important factors, many of which are outside Parent’s or the Company’s management’s control, that could cause actual results to differ materially from the results discussed in the forward-looking statements. These risks, uncertainties, assumptions and other important factors include, but are not limited to: changes in domestic and foreign business, market, financial, political and legal conditions; the inability of the parties to successfully or timely consummate the proposed business combination, including the risk that any required regulatory approvals (including licenses) are not obtained, are delayed or are subject to unanticipated conditions that could adversely affect the combined company or the expected benefits of the proposed business combination or that the approval of the stockholders of Parent or the Company is not obtained; failure to realize the anticipated benefits of the proposed business combination; risks relating to the uncertainty of the projected financial information with respect to the Company including estimated revenues; risks related to the ability of customers to cancel contracts for convenience; risks related to the rollout of the Company’s business and the timing of expected business milestones; the effects of competition on the Company’s future business; level of product service or product or launch failures that could lead customers to use competitors’ services; developments and changes in laws and regulations, including increased regulation of the space transportation industry; the impact of significant investigative, regulatory or legal proceedings; the amount of redemption requests made by Parent’s public stockholders; the ability of Parent or the combined company to issue equity or equity-linked securities in connection with the proposed business combination or in the future; and other risks and uncertainties indicated from time to time in the definitive proxy statement/consent solicitation statement/prospectus relating to the proposed business combination, including those under “Risk Factors” therein, and other documents filed or to be filed with the SEC by Parent. You are cautioned not to place undue reliance upon any forward-looking statements, which speak only as of the date made.

Forward-looking statements included in this press release speak only as of the date of this press release. Except as required by law, neither Parent nor the Company undertakes any obligation to update or revise its forward-looking statements to reflect events or circumstances after the date of this release. Additional risks and uncertainties are identified and discussed in the Parent’s reports filed with the SEC and available at the SEC’s website at www.sec.gov.

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Disclaimer

This communication is for informational purposes only and is neither an offer to purchase, nor a solicitation of an offer to sell, subscribe for or buy any securities or the solicitation of any vote in any jurisdiction pursuant to the proposed transactions or otherwise, nor shall there be any sale, issuance or transfer or securities in any jurisdiction in contravention of applicable law. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended.

INVESTMENT IN ANY SECURITIES DESCRIBED HEREIN HAS NOT BEEN APPROVED OR DISAPPROVED BY THE SEC OR ANY OTHER REGULATORY AUTHORITY NOR HAS ANY AUTHORITY PASSED UPON OR ENDORSED THE MERITS OF THE PROPOSED TRANSACTIONS OR THE ACCURACY OR ADEQUACY OF THE INFORMATION CONTAINED HEREIN. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

Additional Information About the Transactions

In connection with the proposed transaction contemplated by the merger agreement (the “Proposed Transaction”), Parent has filed with the SEC a registration statement on Form S-4, as amended (the “Registration Statement”) that includes a proxy statement of Parent, a consent solicitation statement of the Company and prospectus of Parent, and each party will file other documents with the SEC regarding the Proposed Transaction. A definitive proxy statement/consent solicitation statement/prospectus and other relevant documents will be sent to the stockholders of Parent and the Company, seeking any required stockholder approval, and is not intended to provide the basis for any investment decision or any other decision in respect of such matters. PARENT’S STOCKHOLDERS AND OTHER INTERESTED PERSONS ARE ADVISED TO READ, WHEN AVAILABLE, THE REGISTRATION STATEMENT AND THE PROXY STATEMENT/CONSENT SOLICITATION STATEMENT/PROSPECTUS WHICH FORMS A PART OF THE REGISTRATION STATEMENT, AS WELL AS ANY AMENDMENTS THERETO, AND THE EFFECTIVE REGISTRATION STATEMENT AND DEFINITIVE PROXY STATEMENT/CONSENT SOLICITATION/PROSPECTUS IN CONNECTION WITH PARENT’S SOLICITATION OF PROXIES FOR PARENT’S SPECIAL MEETING OF STOCKHOLDERS TO APPROVE THE TRANSACTIONS CONTEMPLATED BY THE MERGER AGREEMENT (THE “SPECIAL MEETING”), BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE PROPOSED TRANSACTION. When available, the definitive proxy statement/consent solicitation statement/prospectus will be mailed to Parent’s stockholders as of a record date to be established for voting on the Proposed Transaction and the other matters to be voted upon at the Special Meeting. Parent’s stockholders will also be able to obtain copies of the proxy statement/consent solicitation statement/prospectus, and all other relevant documents filed or that will be filed with the SEC in connection with the Proposed Transaction, without charge, once available, at the SEC’s website at www.sec.gov or by directing a request to: Stable Road Capital LLC, James Norris, CPA, Chief Financial Officer, 1345 Abbot Kinney Blvd, Venice, CA 90291, Tel: 310-956-4919, james@stableroadcapital.com. 

Participants in the Solicitation

Parent, the Company and certain of their respective directors, executive officers and other members of management and employees may be deemed participants in the solicitation of proxies of Parent’s stockholders in connection with the Proposed Transaction. PARENT’S STOCKHOLDERS AND OTHER INTERESTED PERSONS MAY OBTAIN, WITHOUT CHARGE, MORE DETAILED INFORMATION REGARDING THE DIRECTORS AND OFFICERS OF PARENT IN ITS ANNUAL REPORT ON FORM 10-K FOR THE FISCAL YEAR ENDED DECEMBER 31, 2020, WHICH WAS FILED WITH THE SEC ON MARCH 8, 2021. INFORMATION REGARDING THE PERSONS WHO MAY, UNDER SEC RULES, BE DEEMED PARTICIPANTS IN THE SOLICITATION OF PROXIES TO PARENT’S STOCKHOLDERS IN CONNECTION WITH THE PROPOSED TRANSACTION AND OTHER MATTERS TO BE VOTED AT THE SPECIAL MEETING IS SET FORTH IN THE DEFINITIVE PROXY STATEMENT WHICH PARENT HAS FILED WITH THE SEC. Additional information regarding the interests of participants in the solicitation of proxies in connection with the Proposed Transaction is included in the Registration Statement and amendments thereto that Parent has filed with the SEC.

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