MNTSW / Momentus Inc. - Equity Warrant - Документы SEC, Годовой отчет, Доверенное заявление

Momentus Inc. - Варрант на акции
US ˙ NasdaqCM ˙ US60879E1192

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LEI 5299005U2981F57VGS41
CIK 1781162
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Momentus Inc. - Equity Warrant
SEC Filings (Chronological Order)
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August 22, 2025 424B7

Momentus Inc. Up to 1,217,593 Shares of Common Stock

Filed pursuant to Rule 424(b)(7) Registration No. 333-283727 PROSPECTUS SUPPLEMENT NO. 1 (To prospectus dated January 2, 2025) Momentus Inc. Up to 1,217,593 Shares of Common Stock This Prospectus Supplement No. 1 (this “Prospectus Supplement”) supplements the prospectus dated January 2, 2025 (the “Prospectus”) relating to the resale of shares of Class A common stock, par value $0.00001 per share (

August 22, 2025 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934         Filed by the Registrant     ☒ Filed by a Party other than the Registrant      ☐         Check the appropriate box: ☒ Preliminary Proxy Statement  ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)

August 22, 2025 424B7

Momentus Inc. Up to 952,940 Shares of Common Stock

Filed pursuant to Rule 424(b)(7) Registration No. 333-287712 PROSPECTUS SUPPLEMENT NO. 1 (To prospectus dated June 27, 2025) Momentus Inc. Up to 952,940 Shares of Common Stock This Prospectus Supplement No. 1 (this “Prospectus Supplement”) supplements the prospectus dated June 27, 2025 (the “Prospectus”) relating to the resale of shares of Class A common stock, par value $0.00001 per share (the “C

August 19, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934         Filed by the Registrant     ☒ Filed by a Party other than the Registrant      ☐         Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, For Use of the Commission Only (as permitted

August 19, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001

August 14, 2025 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SEC FILE NUMBER 001-39128 FORM 12b-25 CUSIP NUMBER 60879E309 NOTIFICATION OF LATE FILING (Check one): ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: June 30, 2025 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transit

August 14, 2025 8-K

Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits

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 August 13, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commi

August 14, 2025 EX-4.1

COMMON STOCK PURCHASE WARRANT MOMENTUS INC.

Exhibit 4.1 THIS SECURITY HAS NOT BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, THIS SECURITY MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSU

August 14, 2025 EX-10.1

MOMENTUS INC. 3901 N. First Street San Jose, California 95134

Exhibit 10.1 MOMENTUS INC. 3901 N. First Street San Jose, California 95134 August 13, 2025 To the Holder of Certain Existing Common Stock Purchase Warrants Re: Inducement Offer to Exercise Existing Common Stock Purchase Warrants Dear Holder: Momentus Inc. (the “Company”) is pleased to offer (this “Inducement Offer”) to you (“Holder”, “you” or similar terminology) the opportunity to receive new war

August 6, 2025 EX-10.1

[Signature Page Follows]

Exhibit 10.1 August 1, 2025 Lon Ensler RE: EMPLOYMENT AGREEMENT Dear Lon: This Employment Agreement (the “Agreement”) between you (referred to hereinafter as the “Executive” or “you”) and Momentus Inc. (the “Company”), a Delaware corporation, sets forth the terms and conditions that shall govern Executive’s employment (referred to hereinafter as “Employment”) with the Company, effective as of Augu

August 6, 2025 8-K

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 August 1, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exac

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 August 1, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commis

July 18, 2025 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934         Filed by the Registrant     ☒ Filed by a Party other than the Registrant      ☐         Check the appropriate box: ☒ Preliminary Proxy Statement  ☐ Confidential, For Use of the Commission Only (as permitted b

July 7, 2025 CORRESP

Momentus Inc. 3901 N. First Street San Jose, California 95124 (650) 564-7820 July 7, 2025

Momentus Inc. 3901 N. First Street San Jose, California 95124 (650) 564-7820 July 7, 2025 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Office of Manufacturing 100 F Street, NE Washington, D.C. 20549 Attention: Kristin Baldwin Re: Momentus Inc. Registration Statement on Form S-1 File No. 333-287942 REQUEST FOR ACCELERATION OF EFFECTIVENESS Requested Dat

July 2, 2025 8-K

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

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 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commiss

July 2, 2025 EX-4.2

PRE-FUNDED COMMON STOCK PURCHASE WARRANT MOMENTUS INC.

Exhibit 4.2 PRE-FUNDED COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: 2,156,880 Issue Date: July 1, 2025 THIS PRE-FUNDED COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [NAME OF HOLDER] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after

July 2, 2025 EX-1.1

A.G.P./Alliance Global Partners 590 Madison Avenue, 28th Floor New York, NY 10022

Exhibit 1.1 A.G.P./Alliance Global Partners 590 Madison Avenue, 28th Floor New York, NY 10022 June 30, 2025 Momentus Inc. 3901 N. First Street San Jose, California 95134 Attention: John Rood Re: Placement Agency Agreement Dear Mr. Rood: Subject to the terms and conditions of this letter agreement (the “Agreement”) between A.G.P./Alliance Global Partners, as the sole placement agent (“A.G.P.”) (A.G

July 2, 2025 EX-4.3

AMENDMENT TO COMMON STOCK PURCHASE WARRANTS

Exhibit 4.3 AMENDMENT TO COMMON STOCK PURCHASE WARRANTS This AMENDMENT TO COMMON STOCK PURCHASE WARRANTS (this “Amendment”) is entered into as of June 30, 2025, by and between Momentus Inc., a Delaware corporation (the “Company”), and Armistice Capital Master Fund Ltd. (the “Holder”). WHEREAS, the Holder is the holder of the following Common Stock Purchase Warrants issued on each of: (i) October 2

July 2, 2025 EX-10.1

SECURITIES PURCHASE AGREEMENT

Exhibit 10.1 SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of June 30, 2025, between Momentus Inc., a Delaware corporation (the “Company”), and each of the purchasers identified on the signature pages hereto (including its successors and assigns, the “Purchaser”). WHEREAS, subject to the terms and conditions set forth in this Agreement and pursuant

July 2, 2025 EX-4.1

COMMON STOCK PURCHASE WARRANT MOMENTUS INC.

Exhibit 4.1 COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: 2,836,800 Original Issuance Date: July 1, 2025 THIS COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [NAME OF HOLDER] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after the Stockh

July 1, 2025 424B5

Momentus Inc. 680,000 Shares of Common Stock Pre-Funded Warrants to Purchase up to 2,156,880 Shares of Common Stock Warrants to Purchase up to 2,836,880 Shares of Common Stock 4,993,760 Shares of Common Stock Issuable upon Exercise of Pre-Funded Warr

TABLE OF CONTENTS Filed Pursuant to Rule 424(b)(5) Registration No. 333-288123 PROSPECTUS   Momentus Inc. 680,000 Shares of Common Stock Pre-Funded Warrants to Purchase up to 2,156,880 Shares of Common Stock Warrants to Purchase up to 2,836,880 Shares of Common Stock 4,993,760 Shares of Common Stock Issuable upon Exercise of Pre-Funded Warrants and Warrants Momentus Inc. (the “Company,” “Momentus,

June 30, 2025 EX-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

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

June 30, 2025 EX-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

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,

June 30, 2025 8-K

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

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 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commiss

June 25, 2025 8-K

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 24, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exact

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 24, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commiss

June 23, 2025 EX-4.13

COMMON STOCK PURCHASE WARRANT MOMENTUS INC.

Exhibit 4.13 COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: [] Original Issuance Date: June [ ], 2025 THIS COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after 1,[ ](the “Initial Exercise

June 23, 2025 S-1/A

As filed with the Securities and Exchange Commission on June 20, 2025

As filed with the Securities and Exchange Commission on June 20, 2025 Registration No.

June 23, 2025 EX-4.14

PRE-FUNDED COMMON STOCK PURCHASE WARRANT MOMENTUS INC.

Exhibit 4.14 PRE-FUNDED COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: [] Issue Date: June [ ] , 2025 THIS PRE-FUNDED COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [●] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after the date hereof

June 23, 2025 EX-1.1

A.G.P./Alliance Global Partners 590 Madison Avenue, 28th Floor New York, NY 10022

Exhibit 1.1 A.G.P./Alliance Global Partners 590 Madison Avenue, 28th Floor New York, NY 10022 June , 2025 Momentus Inc. 3901 N. First Street San Jose, California 95134 Attention: John Rood Re: Placement Agency Agreement Dear Mr. Rood: Subject to the terms and conditions of this letter agreement (the “Agreement”) between A.G.P./Alliance Global Partners, as the sole placement agent (“A.G.P.”) (A.G.P

June 23, 2025 EX-10.34

SECURITIES PURCHASE AGREEMENT

Exhibit 10.34 SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of June , 2025, between Momentus Inc., a Delaware corporation (the “Company”), and each of the purchasers identified on the signature pages hereto (including its successors and assigns, the “Purchaser”). WHEREAS, subject to the terms and conditions set forth in this Agreement and pursuant

June 20, 2025 8-K

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 17, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exact

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 17, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commiss

June 18, 2025 EX-FILING FEES

Calculation of Filing Fee Table Form S-1/A (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Table Form S-1/A (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Class A common stock, $0.00001 p

June 18, 2025 S-1

As filed with the Securities and Exchange Commission on June 18, 2025

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on June 18, 2025 Registration No.

June 18, 2025 EX-10.39

A.G.P./Alliance Global Partners 590 Madison Avenue, 28th Floor New York, New York 10022

Exhibit 10.39 A.G.P./Alliance Global Partners 590 Madison Avenue, 28th Floor New York, New York 10022 June 17, 2025 MOMENTUS INC. 3901 N. First Street San Jose, CA 95134 Attention: Lon Ensler Dear Mr. Ensler, Reference is made to that certain Convertible Promissory Note, dated April 12, 2025 (the “Initial Convertible Promissory Note”), issued to A.G.P./Alliance Global Partners (“AGP” or the “Holde

June 18, 2025 EX-10.38

AMENDMENT TO LOAN AGREEMENT AND REGISTRATION RIGHTS AGREEMENT

Exhibit 10.38 AMENDMENT TO LOAN AGREEMENT AND REGISTRATION RIGHTS AGREEMENT This Amendment to Loan Agreement and the Registration Rights Agreement (this “Amendment”) is dated as of June 17, 2025 (the “Effective Date”) and is made and entered into between Momentus Inc., a Delaware corporation (the “Company”), and J.J. Astor & Co., a Utah corporation (including its successors and assigns, the “Lende

June 18, 2025 EX-10.37

AMENDMENT TO LOAN AGREEMENT AND REGISTRATION RIGHTS AGREEMENT

Exhibit 10.37 AMENDMENT TO LOAN AGREEMENT AND REGISTRATION RIGHTS AGREEMENT This Amendment to Loan Agreement and the Registration Rights Agreement (this “Amendment”) is dated as of June 17, 2025 (the “Effective Date”) and is made and entered into between Momentus Inc., a Delaware corporation (the “Company”), and J.J. Astor & Co., a Utah corporation (including its successors and assigns, the “Lende

June 18, 2025 EX-FILING FEES

Calculation of Filing Fee Table Form S-1 (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Table Form S-1 (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price (1)(2) Fee Rate Amount of Registration Fee Equity Class A common stock, $0.00001

June 18, 2025 S-1/A

As filed with the Securities and Exchange Commission on June 17, 2025.

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on June 17, 2025.

June 11, 2025 S-1

As filed with the Securities and Exchange Commission on June 11, 2025.

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on June 11, 2025.

June 11, 2025 EX-FILING FEES

Calculation of Filing Fee Table Form S-1 (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Table Form S-1 (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Class A common stock, $0.00001 pa

June 5, 2025 8-K

Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

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 May 30, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commissi

June 2, 2025 EX-4.12

COMMON STOCK PURCHASE WARRANT MOMENTUS INC.

Exhibit 4.12 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGIST

June 2, 2025 EX-10.34

REGISTRATION RIGHTS AGREEMENT

Exhibit 10.34 REGISTRATION RIGHTS AGREEMENT This Registration Rights Agreement (this “Agreement”) is made and entered into as of May 30, 2025 by and between Momentus Inc. a Delaware corporation (the “Company”), and J.J. Astor & Co., a Utah corporation (“Lender”). This Agreement is made pursuant to the Loan Agreement, dated as of the date hereof, between the Company and the Lender (the “Loan Agreem

June 2, 2025 EX-FILING FEES

Calculation of Filing Fee Table Form S-1 (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Table Form S-1 (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Class A common stock, $0.00001 par

June 2, 2025 EX-10.33

LOAN AGREEMENT

Exhibit 10.33 LOAN AGREEMENT This Loan Agreement (this “Agreement”) is dated as of May 30, 2025 (the “Agreement Date”) and is made and entered into between Momentus Inc., a Delaware corporation (the “Company”), and J.J. Astor & Co., a Utah corporation (including its successors and assigns, the “Lender”). WHEREAS, the Company wishes to borrow the sum of up to $1,500,000 in two tranches of $750,000

June 2, 2025 S-1

As filed with the Securities and Exchange Commission on May 30, 2025.

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on May 30, 2025.

May 30, 2025 S-8

As filed with the Securities and Exchange Commission on May 30, 2025.

As filed with the Securities and Exchange Commission on May 30, 2025. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 MOMENTUS INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 3714 84-1905538 (State or Other Jurisdiction of Incorporation or Organization) (Primary Stand

May 30, 2025 EX-99.6

THIRD AMENDMENT TO THE MOMENTUS INC. 2022 INDUCEMENT EQUITY PLAN

Exhibit 99.6 THIRD AMENDMENT TO THE MOMENTUS INC. 2022 INDUCEMENT EQUITY PLAN THIS THIRD AMENDMENT TO THE MOMENTUS INC. 2022 INDUCEMENT EQUITY PLAN (this “Third Amendment”) is effective as of April 22, 2025. Capitalized terms used and not defined herein shall have the meanings ascribed to them in the Plan (as defined below), and all section references shall refer to the Plan. WHEREAS, Momentus Inc

May 30, 2025 EX-FILING FEES

Calculation of Filing Fee Table Form S-8 (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Table Form S-8 (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price Per Share (2) Maximum Aggregate Offering Price(2) Fee Rate Amount of Registration Fee (3) Equity Class A Common Stock,

May 20, 2025 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

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 May 19, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commissi

May 20, 2025 EX-10.1

FIRST AMENDMENT TO THE MOMENTUS INC. 2021 EQUITY INCENTIVE PLAN

Exhibit 10.1 FIRST AMENDMENT TO THE MOMENTUS INC. 2021 EQUITY INCENTIVE PLAN THIS FIRST AMENDMENT TO THE MOMENTUS INC. 2021 EQUITY INCENTIVE PLAN (this “First Amendment”) is effective as of May 19, 2025. Capitalized terms used and not defined herein shall have the meanings ascribed to them in the Plan (as defined below), and all section references shall refer to the Plan. RECITALS WHEREAS, Momentu

May 19, 2025 8-K

Other Events

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 May 19, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commissi

May 15, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 00

May 15, 2025 EX-10.3

Convertible Promissory Note dated May 13, 2025 by and between Momentus Inc. and A.G.P./Alliance Global Partners.

THIS NOTE AND THE SECURITIES ISSUABLE UPON THE CONVERSION HEREOF HAVE NOT BEEN REGISTERED UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED, OR UNDER THE SECURITIES LAWS OF ANY STATE.

May 15, 2025 DRS

As confidentially submitted to the Securities and Exchange Commission on May 14, 2025. This draft registration statement has not been publicly filed with the Securities and Exchange Commission and all information herein remains strictly confidential.

TABLE OF CONTENTS As confidentially submitted to the Securities and Exchange Commission on May 14, 2025.

April 28, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934         Filed by the Registrant     ☒ Filed by a Party other than the Registrant      ☐         Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, For Use of the Commission Only (as permitted

April 28, 2025 CORRESP

Momentus Inc. 3901 N. First Street San Jose, California 95124 (650) 564-7820

Momentus Inc. 3901 N. First Street San Jose, California 95124 (650) 564-7820 April 28, 2025 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Office of Manufacturing 100 F Street, NE Washington, D.C. 20549 Attention: Kristin Baldwin Re: Momentus Inc. Registration Statement on Form S-1 File No. 333-286661 REQUEST FOR ACCELERATION OF EFFECTIVENESS Requested D

April 22, 2025 S-1

As filed with the Securities and Exchange Commission on April 21, 2025.

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on April 21, 2025.

April 22, 2025 EX-FILING FEES

Calculation of Filing Fee Table Form S-1 (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Table Form S-1 (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Class A common stock, $0.00001 pa

April 22, 2025 EX-4.19

Exhibit 4.19

Exhibit 4.19 DESCRIPTION OF SECURITIES The following description summarizes the most important terms of our capital stock. Because it is only a summary, it does not contain all of the information that may be important to you, and is qualified by reference to the Second Amended and Restated Certificate of Incorporation, as amended, the Amended and Restated Bylaws, as amended, and the Amended and Re

April 15, 2025 8-K

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 April 15, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exac

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 April 15, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commis

April 15, 2025 8-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 April 15, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 April 15, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Comm

April 14, 2025 EX-99.1

Momentus Signs Long-Term Agreement to Partner with Leading 3D Printing Technology Leader Velo3D Aims to enable faster production of satellite and space system components, and make possible new revenue streams for innovative Silicon Valley space compa

Exhibit 99.1 Momentus Signs Long-Term Agreement to Partner with Leading 3D Printing Technology Leader Velo3D Aims to enable faster production of satellite and space system components, and make possible new revenue streams for innovative Silicon Valley space company SAN JOSE, Calif., April 14, 2025-(BUSINESS WIRE)— Momentus Inc. (NASDAQ: MNTS) (“Momentus” or the “Company”), a U.S. commercial space

April 14, 2025 EX-3.1

, dated April 14, 2025 (incorporated by reference to Exhibit 3.1

Exhibit 3.1 CERTIFICATE OF DESIGNATIONS OF PREFERENCES, RIGHTS AND LIMITATIONS OF SERIES A CONVERTIBLE PREFERRED STOCK OF MOMENTUS INC. Pursuant to Section 151 of the Delaware General Corporation Law (as amended, supplemented or restated from time to time, the “DGCL”), Momentus Inc., a corporation organized and existing under the laws of the State of Delaware (the “Company”), in accordance with th

April 14, 2025 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934         Filed by the Registrant     ☒ Filed by a Party other than the Registrant      ☐         Check the appropriate box: ☒ Preliminary Proxy Statement  ☐ Confidential, For Use of the Commission Only (as permitted b

April 14, 2025 8-K

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 April 12, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exac

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 April 12, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commis

April 14, 2025 EX-10.1

MASTER SERVICES AGREEMENT

Exhibit 10.1 EXECUTION VERSION MASTER SERVICES AGREEMENT This Master Services Agreement (this “Agreement”), dated as of April 12, 2025 (the “Effective Date”), is entered into by and between Velo3D, Inc., a Delaware corporation (“Velo3D”) and Momentus Inc., a Delaware corporation (“Momentus” and together with the Velo3D, the “Parties”, and each a “Party”). WHEREAS, Velo3D has the capability and cap

April 9, 2025 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No. 1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No. 1) (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-39128

April 1, 2025 NT 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SEC FILE NUMBER FORM 12b-25 CUSIP NUMBER NOTIFICATION OF LATE FILING

NT 10-K 1 ef20046702nt10k.htm NT 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SEC FILE NUMBER 001-39128 FORM 12b-25 CUSIP NUMBER 60879E309 NOTIFICATION OF LATE FILING (Check one): ☒ Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: December 31, 2024 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F

April 1, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR o ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-39128 M

March 27, 2025 8-K

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 March 20, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exac

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 March 20, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commis

March 21, 2025 8-K

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 March 20, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exac

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 March 20, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commis

March 21, 2025 EX-4.1

COMMON STOCK PURCHASE WARRANT MOMENTUS INC.

Exhibit 4.1 THIS SECURITY HAS NOT BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, THIS SECURITY MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSU

March 21, 2025 EX-10.1

MOMENTUS INC. 3901 N. First Street San Jose, California 95134

Exhibit 10.1 MOMENTUS INC. 3901 N. First Street San Jose, California 95134 March 20, 2025 To the Holder of Class A Warrants and Class B Warrants to Purchase Shares of Class A Common Stock of Momentus Inc. Issued on September 17, 2024 Re: Inducement Offer to Exercise Existing Class A and Class B Common Stock Purchase Warrants Dear Holder: Momentus Inc. (the “Company”) is pleased to offer (this “Ind

March 4, 2025 8-K

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 March 3, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exact

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 March 3, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commiss

February 13, 2025 EX-1.1

A.G.P./Alliance Global Partners 590 Madison Avenue, 28th Floor New York, NY 10022

Exhibit 1.1 A.G.P./Alliance Global Partners 590 Madison Avenue, 28th Floor New York, NY 10022 February 10, 2025 Momentus Inc. 3901 N. First Street San Jose, California 95134 Attention: John Rood Re: Placement Agency Agreement Dear Mr. Rood: Subject to the terms and conditions of this letter agreement (the “Agreement”) between A.G.P./Alliance Global Partners, as the sole placement agent (“A.G.P.”)

February 13, 2025 EX-10.1

SECURITIES PURCHASE AGREEMENT

Exhibit 10.1 SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of February 10, 2025, between Momentus Inc., a Delaware corporation (the “Company”), and each of the purchasers identified on the signature pages hereto (including its successors and assigns, the “Purchaser”). WHEREAS, subject to the terms and conditions set forth in this Agreement and purs

February 13, 2025 EX-99.1

Momentus Announces $5 Million Offering Priced At-The-Market Under Nasdaq Rules

Exhibit 99.1 Momentus Announces $5 Million Offering Priced At-The-Market Under Nasdaq Rules SAN JOSE, Calif. (BUSINESS WIRE) — February 10, 2025 — Momentus Inc. (NASDAQ: MNTS) (“Momentus” or the “Company”) a U.S. commercial space company that offers satellite buses, transportation, and other in-space infrastructure services, today announced the pricing of its “reasonable best efforts” offering wit

February 13, 2025 EX-4.3

AMENDMENT TO COMMON STOCK PURCHASE WARRANTS

Exhibit 4.3 AMENDMENT TO COMMON STOCK PURCHASE WARRANTS This AMENDMENT TO COMMON STOCK PURCHASE WARRANTS (this “Amendment”) is entered into as of February 10, 2025, by and between Momentus Inc., a Delaware corporation (the “Company”), and Armistice Capital Master Fund Ltd. (the “Holder”). WHEREAS, the Holder is the holder of the following Common Stock Purchase Warrants issued on each of: (i) Septe

February 13, 2025 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits

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 February 10, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Com

February 13, 2025 EX-4.2

PRE-FUNDED COMMON STOCK PURCHASE WARRANT MOMENTUS INC.

Exhibit 4.2 PRE-FUNDED COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: 973,886 Issue Date: February 11, 2025 THIS PRE-FUNDED COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, Armistice Capital Master Fund Ltd. or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at

February 13, 2025 EX-4.1

COMMON STOCK PURCHASE WARRANT MOMENTUS INC.

Exhibit 4.1 COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: 1,273,886 Original Issuance Date: February 11, 2025 THIS COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, Armistice Capital Master Fund Ltd. or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time

February 13, 2025 EX-4.4

AMENDED AND RESTATED PLACEMENT AGENT COMMON STOCK PURCHASE WARRANT MOMENTUS INC.

Exhibit 4.4 THE REGISTERED HOLDER OF THIS PURCHASE WARRANT BY ITS ACCEPTANCE HEREOF, AGREES THAT IT WILL NOT SELL, TRANSFER, ASSIGN, PLEDGE OR HYPOTHECATE, OR BE THE SUBJECT OF ANY HEDGING, SHORT SALE, DERIVATIVE, PUT, OR CALL TRANSACTION THAT WOULD RESULT IN THE EFFECTIVE ECONOMIC DISPOSITION OF THIS PURCHASE WARRANT OR THE UNDERLYING SECURITIES FOR A PERIOD OF ONE HUNDRED EIGHTY (180) DAYS IMMED

February 13, 2025 EX-99.2

Momentus Announces Closing of $5 Million Offering Priced At-The-Market Under NASDAQ Rules

Exhibit 99.2 Momentus Announces Closing of $5 Million Offering Priced At-The-Market Under NASDAQ Rules SAN JOSE, Calif. (BUSINESS WIRE) — February 11, 2025 — Momentus Inc. (NASDAQ: MNTS) (“Momentus” or the “Company”), a U.S. commercial space company that offers satellite buses, transportation, and other in-space infrastructure services, today announced the closing of its previously announced “reas

February 11, 2025 424B5

Momentus Inc. 300,000 Shares of Common Stock Pre-Funded Warrants to Purchase up to 973,886 Shares of Common Stock, Warrants to Purchase up to 1,273,886 Shares of Common Stock, Placement Agent Warrants to Purchase up to 63,694 Shares of Common Stock,

TABLE OF CONTENTS Filed Pursuant to Rule 424(b)(5) Registration No. 333-284393 PROSPECTUS   Momentus Inc. 300,000 Shares of Common Stock Pre-Funded Warrants to Purchase up to 973,886 Shares of Common Stock, Warrants to Purchase up to 1,273,886 Shares of Common Stock, Placement Agent Warrants to Purchase up to 63,694 Shares of Common Stock, Up to 2,311,466 Shares of Common Stock Issuable upon Exerc

February 6, 2025 CORRESP

Momentus Inc. 3901 N. First Street San Jose, California 95124 (650) 564-7820 February 6, 2025

Momentus Inc. 3901 N. First Street San Jose, California 95124 (650) 564-7820 February 6, 2025 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Office of Manufacturing 100 F Street, NE Washington, D.C. 20549 Attention: Eranga Dias Re: Momentus Inc. Registration Statement on Form S-1 File No. 333-284393 REQUEST FOR ACCELERATION OF EFFECTIVENESS Requested Dat

February 6, 2025 CORRESP

A.G.P. / Alliance Global Partners 590 Madison Ave., 28th Floor New York, NY 10022

A.G.P. / Alliance Global Partners 590 Madison Ave., 28th Floor New York, NY 10022 February 6, 2025 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Re: Momentus Inc. Registration Statement on Form S-1 File No: 333-284393 Ladies and Gentlemen: Pursuant to Rule 461 of the General Rules and Regulations of the U.S. Securities a

January 31, 2025 EX-99.1

Momentus Announces Departure of Paul Ney to Join Trump Administration

Exhibit 99.1 Momentus Announces Departure of Paul Ney to Join Trump Administration SAN JOSE, Calif.-(BUSINESS WIRE)-Jan. 28, 2025- Momentus Inc. (NASDAQ: MNTS), a U.S. commercial space company offering satellite buses, technologies, transportation, and other in-space transportation services, today announced that Paul Ney, Momentus Chief Legal Officer and Corporate Secretary, has resigned from his

January 31, 2025 8-K

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 January 27, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Ex

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 January 27, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Comm

January 29, 2025 S-1/A

As filed with the Securities and Exchange Commission on January 29, 2025.

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on January 29, 2025.

January 21, 2025 S-1

As filed with the Securities and Exchange Commission on January 21, 2025.

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on January 21, 2025.

January 21, 2025 EX-FILING FEES

Calculation of Filing Fee Tables Form S-1/A (Form Type) Momentus, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Tables Form S-1/A (Form Type) Momentus, Inc.

January 21, 2025 EX-4.9

FORM OF PLACEMENT AGENT COMMON STOCK PURCHASE WARRANT MOMENTUS INC.

Exhibit 4.9 FORM OF PLACEMENT AGENT COMMON STOCK PURCHASE WARRANT MOMENTUS INC. THE REGISTERED HOLDER OF THIS PURCHASE WARRANT BY ITS ACCEPTANCE HEREOF, AGREES THAT IT WILL NOT SELL, TRANSFER OR ASSIGN THIS PURCHASE WARRANT EXCEPT AS HEREIN PROVIDED AND THE REGISTERED HOLDER OF THIS PURCHASE WARRANT AGREES THAT IT WILL NOT SELL, TRANSFER, ASSIGN, PLEDGE OR HYPOTHECATE THIS PURCHASE WARRANT FOR A P

January 21, 2025 EX-10.25

SECURITIES PURCHASE AGREEMENT

Exhibit 10.25 SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of [], 2025, between Momentus Inc., a Delaware corporation (the “Company”), and each of the purchasers identified on the signature pages hereto (including its successors and assigns, the “Purchaser”). WHEREAS, subject to the terms and conditions set forth in this Agreement and pursuant to

January 21, 2025 EX-4.10

DESCRIPTION OF SECURITIES

Exhibit 4.10 DESCRIPTION OF SECURITIES The following description summarizes the most important terms of our capital stock. Because it is only a summary, it does not contain all of the information that may be important to you, and is qualified by reference to the Second Amended and Restated Certificate of Incorporation, as amended, the Amended and Restated Bylaws, as amended, and the Amended and Re

January 16, 2025 EX-99.1

Nasdaq Grants Momentus Inc. Continued Listing

Exhibit 99.1 Nasdaq Grants Momentus Inc. Continued Listing SAN JOSE, Calif. (BUSINESS WIRE) — January 16, 2025 — Momentus Inc. (NASDAQ: MNTS) (the “Company” or “Momentus”), a U.S. commercial space company, announced today that the Nasdaq Hearings Panel issued a letter granting the Company’s request to continue its listing on The Nasdaq Capital Market until April 15, 2025, while the Company execute

January 16, 2025 8-K

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 January 13, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Ex

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 January 13, 2025 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Comm

December 31, 2024 CORRESP

Momentus Inc. 3901 N. First Street San Jose, California 95124 (650) 564-7820 December 31, 2024

Momentus Inc. 3901 N. First Street San Jose, California 95124 (650) 564-7820 December 31, 2024 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Office of Energy & Transportation 100 F Street, NE Washington, D.C. 20549 Attention: Eranga Dias Re: Momentus Inc. Registration Statement on Form S-1 Filed on December 11, 2024 File No. 333-283727 Ladies and Gentle

December 26, 2024 S-1/A

As filed with the Securities and Exchange Commission on December 23, 2024.

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on December 23, 2024.

December 26, 2024 EX-FILING FEES

Calculation of Filing Fee Table Form S-1/A (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Table Form S-1/A (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Fees to be Paid Equity Class A common s

December 18, 2024 EX-10.1

SECURITIES PURCHASE AGREEMENT

Exhibit 10.1 SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of December 17, 2024, between Momentus Inc., a Delaware corporation (the “Company”), and each of the purchasers identified on the signature pages hereto (including its successors and assigns, the “Purchaser”). WHEREAS, subject to the terms and conditions set forth in this Agreement and purs

December 18, 2024 EX-1.1

A.G.P./Alliance Global Partners 590 Madison Avenue, 28th Floor New York, NY 10022

Exhibit 1.1 A.G.P./Alliance Global Partners 590 Madison Avenue, 28th Floor New York, NY 10022 December 17, 2024 Momentus Inc. 3901 N. First Street San Jose, California 95134 Attention: John Rood Re: Placement Agency Agreement Dear Mr. Rood: Subject to the terms and conditions of this letter agreement (the “Agreement”) between A.G.P./Alliance Global Partners, as the sole placement agent (“A.G.P.”)

December 18, 2024 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

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 December 17, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Com

December 18, 2024 424B4

Momentus Inc. 230,000 Shares of Common Stock Pre-Funded Warrants to Purchase up to 570,000 Shares of Common Stock, Warrants to Purchase up to 800,000 Shares of Common Stock, Placement Agent Warrants to Purchase up to 40,000 Shares of Common Stock, Up

TABLE OF CONTENTS Filed Pursuant to Rule 424(b)(4) Registration No. 333-283539 PROSPECTUS   Momentus Inc. 230,000 Shares of Common Stock Pre-Funded Warrants to Purchase up to 570,000 Shares of Common Stock, Warrants to Purchase up to 800,000 Shares of Common Stock, Placement Agent Warrants to Purchase up to 40,000 Shares of Common Stock, Up to 1,410,000 Shares of Common Stock Issuable upon Exercis

December 18, 2024 EX-4.3

PLACEMENT AGENT COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: [___] Original Issuance Date: [___]

Exhibit 4.3 PLACEMENT AGENT COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: [] Original Issuance Date: [] THIS PLACEMENT AGENT COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, A.G.P./Alliance Global Partners or its designees or assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter se

December 18, 2024 EX-4.2

PRE-FUNDED COMMON STOCK PURCHASE WARRANT MOMENTUS INC.

Exhibit 4.2 PRE-FUNDED COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: [] Issue Date: [] THIS PRE-FUNDED COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after the date hereof (the “Initial E

December 18, 2024 EX-99.2

Momentus Announces Closing of $5 Million Offering Priced At-The-Market Under NASDAQ Rules

Exhibit 99.2 Momentus Announces Closing of $5 Million Offering Priced At-The-Market Under NASDAQ Rules SAN JOSE, Calif. (BUSINESS WIRE) — December 18, 2024 — Momentus Inc. (NASDAQ: MNTS) (“Momentus” or the “Company”), a U.S. commercial space company that offers satellite buses, transportation, and other in-space infrastructure services, today announced the closing of its previously announced “reas

December 18, 2024 EX-99.1

Momentus Announces $5 Million Offering Priced At-The-Market Under NASDAQ Rules

Exhibit 99.1 Momentus Announces $5 Million Offering Priced At-The-Market Under NASDAQ Rules SAN JOSE, Calif. (BUSINESS WIRE) — December 17, 2024 — Momentus Inc. (NASDAQ: MNTS) (“Momentus” or the “Company”), a U.S. commercial space company that offers satellite buses, transportation, and other in-space infrastructure services, today announced the pricing of its “reasonable best efforts” offering wi

December 18, 2024 EX-4.1

COMMON STOCK PURCHASE WARRANT MOMENTUS INC.

Exhibit 4.1 COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: [] Original Issuance Date: [] THIS COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [NAME OF HOLDER] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after the date hereof (the “Initi

December 17, 2024 8-K

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 December 17, 2024 Date of Report (date of earliest event reported) Momentus Inc. (E

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 December 17, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Com

December 17, 2024 EX-99.1

Momentus to Deploy Defense Department and Commercial Payloads on Rideshare Mission with SpaceX in 2026

Exhibit 99.1 Momentus to Deploy Defense Department and Commercial Payloads on Rideshare Mission with SpaceX in 2026 (BUSINESS WIRE) — December 17, 2024 — Momentus Inc. (NASDAQ: MNTS) (“Momentus” or the “Company”), a U.S. commercial space company offering satellite buses, technologies, transportation, and other in-space infrastructure services, today announced it has signed a contract with SpaceX t

December 17, 2024 8-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 November 30, 2024 Date of Report (date of earliest event reported) Momentus Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 November 30, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (C

December 16, 2024 8-K

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 December 13, 2024 Date of Report (date of earliest event reported) Momentus Inc. (E

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 December 13, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Com

December 16, 2024 CORRESP

Momentus Inc. 3901 N. First Street San Jose, California 95124 (650) 564-7820 December 16, 2024

Momentus Inc. 3901 N. First Street San Jose, California 95124 (650) 564-7820 December 16, 2024 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Office of Energy & Transportation 100 F Street, NE Washington, D.C. 20549 Attention: Arangas Dias Re: Momentus Inc. Registration Statement on Form S-1 Filed on December 2, 2024 File No. 333-283539 Ladies and Gentle

December 16, 2024 CORRESP

A.G.P. / Alliance Global Partners 590 Madison Ave., 28th Floor New York, NY 10022

A.G.P. / Alliance Global Partners 590 Madison Ave., 28th Floor New York, NY 10022 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Re: Momentus Inc. Registration Statement on Form S-1 File No: 333-283539 Ladies and Gentlemen: Pursuant to Rule 461 of the General Rules and Regulations of the U.S. Securities and Exchange Commi

December 16, 2024 EX-10.1

Loan Agreement, dated December 13, 2024, by and between Momentus Inc. and J.J. Astor & Co.

Exhibit 10.1 LOAN AGREEMENT This Loan Agreement (this “Agreement”) is dated as of December 13, 2024, and is made and entered into between Momentus Inc., a Delaware corporation (the “Company”), and J.J. Astor & Co., a Utah corporation (including its successors and assigns, the “Lender”). WHEREAS, the Company wishes to borrow the sum of $2,000,000, and the Company wishes to enter into this Agreement

December 16, 2024 EX-4.1

Form of Warrant

Exhibit 4.1 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTR

December 11, 2024 EX-FILING FEES

Calculation of Filing Fee Table Form S-1 (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Table Form S-1 (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Class A common stock, $0.00001 par

December 11, 2024 S-1

As filed with the Securities and Exchange Commission on December 10, 2024.

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on December 10, 2024.

December 10, 2024 S-1/A

As filed with the Securities and Exchange Commission on December 9, 2024.

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on December 9, 2024.

December 10, 2024 EX-99.1

Momentus Inc. Announces

Exhibit 99.1 Momentus Inc. Announces Reverse Stock Split SAN JOSE, CA – December 9, 2024 – Momentus Inc. (NASDAQ: MNTS) (“Momentus” or the “Company”), a U.S. commercial space company that offers satellite buses, transportation and other in-space infrastructure services, today announced it has effectuated a 1-for-14 reverse stock split (the “Reverse Stock Split”) of its Class A common stock (the “C

December 10, 2024 EX-3.1

Second Certificate of Amendment to the Second Amended and Restated Certificate of Incorporation of Momentus Inc. (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed on December 10, 2024).

Exhibit 3.1 SECOND CERTIFICATE OF AMENDMENT TO THE SECOND AMENDED AND RESTATED CERTIFICATE OF INCORPORATION, AS AMENDED OF MOMENTUS INC. MOMENTUS INC. (the “Corporation”), a corporation organized and existing under and by virtue of the provisions of the General Corporation Law of the State of Delaware (the “DGCL”), does hereby certify as follows: FIRST: This Second Certificate of Amendment amends

December 10, 2024 EX-4.7

FORM OF PRE-FUNDED COMMON STOCK PURCHASE WARRANT MOMENTUS INC.

Exhibit 4.7 FORM OF PRE-FUNDED COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: [] Issue Date: [] THIS PRE-FUNDED COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after the date hereof (the “I

December 10, 2024 8-K

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 December 4, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Ex

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 December 4, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Comm

December 10, 2024 EX-10.25

SECURITIES PURCHASE AGREEMENT

Exhibit 10.25 SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of December [], 2024, between Momentus Inc., a Delaware corporation (the “Company”), and each of the purchasers identified on the signature pages hereto (including its successors and assigns, the “Purchaser”). WHEREAS, subject to the terms and conditions set forth in this Agreement and pur

December 10, 2024 EX-1.1

Exhibit 1.1 A.G.P./Alliance Global Partners 590 Madison Avenue, 28th Floor New York, NY 10022 December [__], 2024 Momentus Inc. 3901 N. First Street San Jose, California 95134 Attention: John Rood Re: Placement Agency Agreement Dear Mr. Rood: Subject

Exhibit 1.1 A.G.P./Alliance Global Partners 590 Madison Avenue, 28th Floor New York, NY 10022 December [], 2024 Momentus Inc. 3901 N. First Street San Jose, California 95134 Attention: John Rood Re: Placement Agency Agreement Dear Mr. Rood: Subject to the terms and conditions of this letter agreement (the “Agreement”) between A.G.P./Alliance Global Partners, as the sole placement agent (“A.G.P.”)

December 10, 2024 EX-4.8

COMMON STOCK PURCHASE WARRANT MOMENTUS INC.

Exhibit 4.8 COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: [] Original Issuance Date: [], 2024 THIS COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after the date hereof (the “Initial Exerc

December 10, 2024 EX-4.9

FORM OF PLACEMENT AGENT COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: [___] Original Issuance Date: [___]

Exhibit 4.9 FORM OF PLACEMENT AGENT COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: [] Original Issuance Date: [] THIS PLACEMENT AGENT COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after t

December 10, 2024 EX-FILING FEES

Calculation of Filing Fee Tables Form S-1/A (Form Type) Momentus, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Tables Form S-1/A (Form Type) Momentus, Inc.

December 5, 2024 8-K

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 November 30, 2024 Date of Report (date of earliest event reported) Momentus Inc. (E

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 November 30, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Com

December 5, 2024 EX-10.1

First Amendment to Secured Convertible Promissory Note, dated July 12, 2024, by and between Space Infrastructures Ventures, LLC and Momentus Inc.

FIRST AMENDMENT TO SECURED CONVERTIBLE PROMISSORY NOTE FOR VALUE RECEIVED, MOMENTUS INC.

December 5, 2024 EX-10.2

First Amendment to Secured Convertible Promissory Note, dated October 24, 2024, by and between Space Infrastructures Ventures, LLC and Momentus Inc.

FIRST AMENDMENT TO SECURED CONVERTIBLE PROMISSORY NOTE FOR VALUE RECEIVED, MOMENTUS INC.

December 2, 2024 S-1

As filed with the Securities and Exchange Commission on November 29, 2024.

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on November 29, 2024.

December 2, 2024 EX-FILING FEES

Calculation of Filing Fee Table Form S-1 (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Table Form S-1 (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price (1)(2)(3) Fee Rate Amount of Registration Fee Equity Class A common stock, $0.00

November 22, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

November 22, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934

DEFA14A 1 ef20039179defa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission Only (as permitted by Ru

November 14, 2024 SC 13G/A

MNTS / Momentus Inc. / ARMISTICE CAPITAL, LLC Passive Investment

SC 13G/A 1 armistice-mnts093024a1.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Momentus Inc. (Name of Issuer) Class A common stock (Title of Class of Securities) 60879E200 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to desi

November 14, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

November 14, 2024 EX-4.4

Secured Convertible Promissory Note, dated July 12, 2024, by and between Space Infrastructures Ventures, LLC and Momentus Inc.

SECURED CONVERTIBLE PROMISSORY NOTE Up to $2,300,000 July 12, 2024 FOR VALUE RECEIVED, MOMENTUS INC.

November 14, 2024 SC 13G/A

MNTS / Momentus Inc. / ARMISTICE CAPITAL, LLC Passive Investment

SC 13G/A 1 armistice-mnts093024a1.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Momentus Inc. (Name of Issuer) Class A common stock (Title of Class of Securities) 60879E200 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to desi

November 13, 2024 8-K

Other Events

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 November 13, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Com

November 1, 2024 CORRESP

Momentus Inc. 3901 N. First Street San Jose, California 95124 (650) 564-7820 November 1, 2024

Momentus Inc. 3901 N. First Street San Jose, California 95124 (650) 564-7820 November 1, 2024 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Office of Energy & Transportation 100 F Street, NE Washington, D.C. 20549 Attention: Sarah Sidwell Re: Momentus Inc. Registration Statement on Form S-1 Filed on October 18, 2024 File No. 333-282724 Ladies and Gentle

November 1, 2024 S-1/A

As filed with the Securities and Exchange Commission on November 1, 2024.

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on November 1, 2024.

November 1, 2024 EX-FILING FEES

Calculation of Filing Fee Table Form S-1 (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Table Form S-1 (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Class A common stock, $0.00001 par

October 29, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934         Filed by the Registrant     ☒ Filed by a Party other than the Registrant      ☐         Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, For Use of the Commission Only (as permitted

October 28, 2024 8-K

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 24, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Ex

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 24, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Comm

October 28, 2024 EX-10.1

Secured Convertible Promissory Note, dated October 24, 2024, by and between Space Infrastructures Ventures, LLC and Momentus Inc. (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on October 28, 2024).

Exhibit 10.1 SECURED CONVERTIBLE PROMISSORY NOTE Up to $3,000,000 October 24, 2024 FOR VALUE RECEIVED, MOMENTUS INC. (the “Borrower”) hereby unconditionally promises to pay to the order of SPACE INFRASTRUCTURES VENTURES, LLC (the “Lender”) the principal amount of up to $3,000,000 to the account specified by the Lender from time to time in writing, pursuant to the terms of this secured, convertible

October 24, 2024 8-K

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 17, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Ex

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 17, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Comm

October 18, 2024 EX-10.23

Secured Convertible Promissory Note, dated July 12, 2024, by and between Space Infrastructures Ventures, LLC and Momentus Inc. (incorporated by reference to Exhibit 10.23 to the Company’s Registration Statement on Form S-1 (Registration No. 333-282724) filed on October 18, 2024).

Exhibit 10.23 SECURED CONVERTIBLE PROMISSORY NOTE Up to $2,300,000 July , 2024 FOR VALUE RECEIVED, MOMENTUS INC. (the “Borrower”) hereby unconditionally promises to pay to the order of SPACE INFRASTRUCTURES VENTURES, LLC (the “Lender”) the principal amount of up to $2,300,000 to the account specified by the Lender from time to time in writing, pursuant to the terms of this secured, convertible pro

October 18, 2024 EX-10.22

Form of Secured Promissory Note (incorporated by reference to Exhibit 10.22 to the Company’s Registration Statement on Form S-1 (Registration No. 333-282724) filed on October 18, 2024).

Exhibit 10.22 SECURED PROMISSORY NOTE $[ ] Dated: June 21, 2024 FOR VALUE RECEIVED, the undersigned, Momentus Inc., a Delaware corporation, (“Borrower”) HEREBY UNCONDITIONALLY PROMISES TO PAY to the order of John Rood (“Lender”) the principal amount of [Amount] ($ ) plus interest on the aggregate unpaid principal amount at the rate of five and twelve one-hundredths percent (5.12%) per annum (the “

October 18, 2024 EX-FILING FEES

Calculation of Filing Fee Table Form S-1 (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Table Form S-1 (Form Type) Momentus Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Class A common stock, $0.00001 par

October 18, 2024 S-1

As filed with the Securities and Exchange Commission on October 18, 2024.

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on October 18, 2024.

October 18, 2024 EX-4.6

PLACEMENT AGENT COMMON STOCK PURCHASE WARRANT MOMENTUS INC.

Exhibit 4.6 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTR

October 18, 2024 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934         Filed by the Registrant     ☒ Filed by a Party other than the Registrant      ☐         Check the appropriate box: ☒ Preliminary Proxy Statement  ☐ Confidential, For Use of the Commission Only (as permitted b

October 15, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 00

October 15, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001

September 26, 2024 8-K

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 September 24, 2024 Date of Report (date of earliest event reported) Momentus Inc. (

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 September 24, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Co

September 26, 2024 EX-99.1

UNITED STATES DISTRICT COURT NORTHERN DISTRICT OF CALIFORNIA

Exhibit 99.1 UNITED STATES DISTRICT COURT NORTHERN DISTRICT OF CALIFORNIA MELISSA HANNA, Derivatively on Behalf of MOMENTUS INC. (F/K/A STABLE ROAD ACQUISITION CORP.), Plaintiff, vs. BRIAN KABOT, JUAN MANUEL QUIROGA, JAMES NORRIS, JAMES HOFMOCKEL, MIKHAIL KOKORICH, DAWN HARMS, FRED KENNEDY, CHRIS HADFIELD, MITCHEL B. KUGLER, VICTORINO MERCADO, KIMBERLEY A. REED, LINDA J. REINERS, JOHN C. ROOD, STA

September 26, 2024 EX-99.2

UNITED STATES DISTRICT COURT NORTHERN DISTRICT OF CALIFORNIA

Exhibit 99.2 UNITED STATES DISTRICT COURT NORTHERN DISTRICT OF CALIFORNIA MELISSA HANNA, Derivatively on Behalf of MOMENTUS INC. (F/K/A STABLE ROAD ACQUISITION CORP.), Plaintiff, vs. BRIAN KABOT, JUAN MANUEL QUIROGA, JAMES NORRIS, JAMES HOFMOCKEL, MIKHAIL KOKORICH, DAWN HARMS, FRED KENNEDY, CHRIS HADFIELD, MITCHEL B. KUGLER, VICTORINO MERCADO, KIMBERLEY A. REED, LINDA J. REINERS, JOHN C. ROOD, STA

September 20, 2024 SC 13G/A

MNTS / Momentus Inc. / Otsuka Masaya - AMENDMENT NO. 2 Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Momentus Inc. (Name of Issuer) Ordinary Share (Title of Class of Securities) 60879E200 (CUSIP Number) September 18,2024 (Date of Event Which Requires Filing of This Statement) Check the appropriate box to designate the rule pursuant to which this Schedul

September 16, 2024 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No. 1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No. 1) (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-39128

September 16, 2024 EX-10.1

Form of Securities Purchase Agreement (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on September 16, 2024).

Exhibit 10.1 EXECUTION VERSION SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of September 15, 2024, between Momentus Inc., a Delaware corporation (the “Company”), and each of the purchasers identified on the signature pages hereto (including its successors and assigns, the “Purchaser”). WHEREAS, subject to the terms and conditions set forth in this

September 16, 2024 8-K

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 September 15, 2024 Date of Report (date of earliest event reported) Momentus Inc. (

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 September 15, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Co

September 16, 2024 EX-4.2

Form of Class A Warrant (incorporated by reference to Exhibit 4.2 to the Company’s Current Report on Form 8-K filed on September 16, 2024).

Exhibit 4.2 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTR

September 16, 2024 EX-4.1

Form of Pre-Funded Warrant (incorporated by reference to Exhibit 4.1 to the Company’s Current Report on Form 8-K filed on September 16, 2024).

Exhibit 4.1 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTR

September 16, 2024 EX-99.1

Momentus Announces $2.75 Million Private Placement

Exhibit 99.1 Momentus Announces $2.75 Million Private Placement SAN JOSE, Calif., September 16, 2024-Momentus Inc. (NASDAQ: MNTS) (“Momentus” or the “Company”), a U.S. commercial space company that offers satellite buses, transportation, and other in-space infrastructure services, today announced that it has entered into a securities purchase agreement with a single U.S. institutional investor for

September 16, 2024 EX-4.3

Form of Class B Warrant (incorporated by reference to Exhibit 4.3 to the Company’s Current Report on Form 8-K filed on September 16, 2024).

Exhibit 4.3 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTR

September 16, 2024 EX-10.2

Form of Registration Rights Agreement (incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed on September 16, 2024).

Exhibit 10.2 EXECUTION VERSION REGISTRATION RIGHTS AGREEMENT This Registration Rights Agreement (this “Agreement”) is made and entered into as of September 15, 2024, between Momentus Inc., a Delaware corporation (the “Company”), and each of the several purchasers signatory hereto (each such purchaser, a “Purchaser” and, collectively, the “Purchasers”). This Agreement is made pursuant to the Securi

September 6, 2024 8-K

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 September 6, 2024 Date of Report (date of earliest event reported) Momentus Inc. (E

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 September 6, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Com

September 4, 2024 CORRESP

Momentus Inc. 3901 N. First Street San Jose, California

Momentus Inc. 3901 N. First Street San Jose, California September 4, 2024 Securities and Exchange Commission Division of Corporation Finance Office of Manufacturing Attn: Andrew Blume Kevin Woody Re: Momentus Inc. Form 10-K for the Fiscal Year Ended December 31, 2023 File No. 001-39128 Dear Mr. Blume and Mr. Woody: By your letter dated August 20, 2024 (the “SEC Letter”), the staff of the Division

August 28, 2024 SC 13G

MNTS / Momentus Inc. / Otsuka Masaya Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 0)* Momentus Inc. (Name of Issuer) Ordinary Share (Title of Class of Securities) 60879E200 (CUSIP Number) August 23,2024 (Date of Event Which Requires Filing of This Statement) Check the appropriate box to designate the rule pursuant to which this Schedule i

August 28, 2024 SC 13G/A

MNTS / Momentus Inc. / Otsuka Masaya - AMENDMENT NO. 1 Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Momentus Inc. (Name of Issuer) Ordinary Share (Title of Class of Securities) 60879E200 (CUSIP Number) August 28,2024 (Date of Event Which Requires Filing of This Statement) Check the appropriate box to designate the rule pursuant to which this Schedule i

August 27, 2024 8-K

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 August 21, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exa

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 August 21, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commi

August 15, 2024 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

NT 10-Q 1 ef20034229nt10q.htm NT 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SEC FILE NUMBER 001-39128 FORM 12b-25 CUSIP NUMBER 60879E200 NOTIFICATION OF LATE FILING (Check one): ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: June 30, 2024 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Tr

July 18, 2024 8-K

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 July 12, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact

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 July 12, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commiss

July 2, 2024 8-K

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 26, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact

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 26, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commiss

June 21, 2024 8-K

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 18, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact

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 18, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commiss

June 6, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR o ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-39128 M

June 6, 2024 EX-97.1

Momentus Inc. Policy for the Recovery of Erroneously Awarded Compensation

MOMENTUS INC. POLICY FOR THE RECOVERY OF ERRONEOUSLY AWARDED COMPENSATION (Adopted November 27, 2023) 1. Introduction The Board Directors (the “Board”) of Momentus Inc. (the “Company”) has adopted this policy (the “Policy”) for the recovery of Erroneously Awarded Compensation (as defined in Section 6 below) in the event of an Accounting Restatement (as defined in Section 5 below), intending to sat

June 6, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ D

May 30, 2024 EX-99.1

Momentus Receives Nasdaq Deficiency Notification Regarding Delayed Form 10-Q

Exhibit 99.1 Momentus Receives Nasdaq Deficiency Notification Regarding Delayed Form 10-Q SAN JOSE, Calif., May 30, 2024 – Momentus Inc. (NASDAQ: MNTS) (“Momentus” or the “Company”), a U.S. commercial space company that offers satellite buses, transportation, and other in-space infrastructure services, today announced that it received notice (the “Notice”) from the Nasdaq Capital Market LLC (“Nasd

May 30, 2024 8-K

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 May 23, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact

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 May 23, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commissi

May 17, 2024 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SEC FILE NUMBER 001-39128 FORM 12b-25 CUSIP NUMBER 60879E200 NOTIFICATION OF LATE FILING (Check one): ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: March 31, 2024 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transi

May 14, 2024 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box: ☒ Preliminary Proxy Statement  ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2))  ☐ D

May 6, 2024 8-K

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 May 6, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact n

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 May 6, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commissio

April 19, 2024 EX-99.1

Momentus Receives Nasdaq Deficiency Notification Regarding Delayed Form 10-K

Exhibit 99.1 Momentus Receives Nasdaq Deficiency Notification Regarding Delayed Form 10-K SAN JOSE, Calif., April 19, 2024 – Momentus Inc. (NASDAQ: MNTS) (“Momentus” or the “Company”), a U.S. commercial space company that offers satellite buses, transportation, and other in-space infrastructure services, today announced that it received formal notice (the “Notice”) from the Nasdaq Capital Market L

April 19, 2024 8-K

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 April 17, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exac

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 April 17, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commis

April 2, 2024 NT 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SEC FILE NUMBER FORM 12b-25 CUSIP NUMBER NOTIFICATION OF LATE FILING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SEC FILE NUMBER 001-39128 FORM 12b-25 CUSIP NUMBER 60879E200 NOTIFICATION OF LATE FILING (Checkone): ☒ Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: December 31, 2023 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Tran

March 29, 2024 8-K

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

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 March 27, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commis

March 25, 2024 EX-99.2

Momentus Announces Cancellation of Special Meeting of Stockholders

Exhibit 99.2 Momentus Announces Cancellation of Special Meeting of Stockholders SAN JOSE, CA – March 25, 2024– Momentus Inc. (NASDAQ: MNTS) (“Momentus” or the “Company”), announced today that it has cancelled the Company’s special meeting of stockholders that was originally scheduled for March 15, 2024, but was adjourned due to a lack of quorum. About Momentus Inc. Momentus is a U.S. commercial sp

March 25, 2024 EX-99.1

Momentus Announces Chief Financial Officer Transition

Exhibit 99.1 Momentus Announces Chief Financial Officer Transition SAN JOSE, Calif.-(BUSINESS WIRE)-Momentus Inc. (NASDAQ: MNTS) ("Momentus" or the "Company"), a U.S. commercial space company that offers satellite buses, transportation and other in-space infrastructure services, welcomes new interim Chief Financial Officer (CFO) Lon Ensler to the Company. Ensler will assume the role of interim CFO

March 25, 2024 8-K

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 March 19, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exac

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 March 19, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commis

March 18, 2024 8-K

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 March 15, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exac

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 March 15, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commis

March 7, 2024 EX-4.1

PRE-FUNDED COMMON STOCK PURCHASE WARRANT MOMENTUS INC.

Exhibit 4.1 PRE-FUNDED COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: 3,304,280 Issue Date: March 7 , 2024 THIS PRE-FUNDED COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [INVESTOR] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after the

March 7, 2024 EX-4.2

Form of Warrant (incorporated by reference to Exhibit 4.2 to the Company’s Current Report on Form 8-K, filed on March 7, 2024).

Exhibit 4.2 COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: 4,624,280 Original Issuance Date: March 7, 2024 Initial Exercise Date: March 7, 2024 THIS COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [INVESTOR] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at

March 7, 2024 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

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 March 4, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commiss

March 7, 2024 EX-99.1

Momentus Announces $4.0 Million Registered Direct Offering Priced At-the-Market Under Nasdaq Rules

Exhibit 99.1 Momentus Announces $4.0 Million Registered Direct Offering Priced At-the-Market Under Nasdaq Rules SAN JOSE, Calif., March 5, 2024-Momentus Inc. (NASDAQ: MNTS) (“Momentus” or the “Company”), a U.S. commercial space company that offers satellite buses, transportation, and other in-space infrastructure services, today announced that it has entered into a securities purchase agreement wi

March 7, 2024 EX-10.1

Form of Securities Purchase Agreement (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K, filed on March 7, 2024).

Exhibit 10.1 SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of March 4 , 2024, between Momentus Inc., a Delaware corporation (the “Company”), and each of the purchasers identified on the signature pages hereto (including its successors and assigns, the “Purchaser”). WHEREAS, subject to the terms and conditions set forth in this Agreement and pursuan

March 6, 2024 424B5

Momentus Inc. 1,320,000 Shares of Class A Common Stock Pre-Funded Warrants to Purchase up to 3,304,280 Shares of Class A Common Stock Warrants to Purchase up to 4,624,280 Shares of Class A Common Stock Class A Common Stock Underlying the Pre-Funded W

TABLE OF CONTENTS Filed pursuant to Rule 424(b)(5) Registration No. 333-267230 PROSPECTUS SUPPLEMENT (to the prospectus dated September 12, 2022)   Momentus Inc. 1,320,000 Shares of Class A Common Stock Pre-Funded Warrants to Purchase up to 3,304,280 Shares of Class A Common Stock Warrants to Purchase up to 4,624,280 Shares of Class A Common Stock Class A Common Stock Underlying the Pre-Funded War

March 5, 2024 EX-99

Momentus Awarded NASA Contract to Provide Flight and Payload Integration Services

Exhibit 99.1 Momentus Awarded NASA Contract to Provide Flight and Payload Integration Services SAN JOSE, CA – March 5, 2024 Momentus Inc. (NASDAQ: MNTS)(“Momentus” or the “Company”), a leading provider of in-space transportation services, is pleased to announce that it has been awarded a NASA indefinite-delivery/indefinite-quantity (ID/IQ) base contract award with a performance period of five year

March 5, 2024 8-K

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 March 4, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact

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 March 4, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commiss

February 16, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy St

February 14, 2024 SC 13G

US60879E2000 / MOMENTUS INC / ARMISTICE CAPITAL, LLC Passive Investment

SC 13G 1 armistice-mnts123123.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Momentus Inc. (Name of Issuer) Class A common stock (Title of Class of Securities) 60879E200 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate th

February 14, 2024 SC 13G/A

MNTS / Momentus Inc. / SCOGGIN MANAGEMENT LP Passive Investment

SC 13G/A 1 e619272sc13ga-momentus.htm SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b)(c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (Amendment No. 1) * Momentus Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 60879

February 12, 2024 8-K

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

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 February 7, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Comm

February 7, 2024 SC 13D/A

MNTS / Momentus Inc. / Prime Movers Lab Fund I LP Activist Investment

SC 13D/A 1 momentus13da.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 8)* MOMENTUS INC. (Name of Issuer) Common Stock, par value $0.00001 per share (Title of Class of Securities) 60879E 101 (CUSIP Number) Taylor Frankel c/o Prime Movers Lab P.O. Box 12829 Jackson, WY 83002 307-203-5036 (Name, Address

February 5, 2024 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant To Section 14(A) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box: ☒ Preliminary Proxy Statement  ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2))  ☐ Definitive Proxy St

February 2, 2024 8-K

Regulation FD Disclosure, Termination of a Material Definitive Agreement, Financial Statements and Exhibits

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 January 29, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Comm

February 2, 2024 EX-99.1

Momentus Completes All Requirements of the National Security Agreement (NSA)

Exhibit 99.1 Momentus Completes All Requirements of the National Security Agreement (NSA) January 31, 2024 NSA Terminated by Committee on Foreign Investment in the United States SAN JOSE, Calif.-(BUSINESS WIRE)-Jan. 31, 2024- Momentus Inc. (NASDAQ: MNTS) ("Momentus" or the "Company"), a U.S. commercial space company that offers satellite buses and in-space infrastructure services including transpo

January 17, 2024 424B5

Momentus Inc. 900,000 Shares of Class A Common Stock Pre-Funded Warrants to Purchase up to 2,787,000 Shares of Class A Common Stock Warrants to Purchase up to 3,687,000 Shares of Class A Common Stock Class A Common Stock Underlying the Pre-Funded War

TABLE OF CONTENTS Filed pursuant to Rule 424(b)(5) Registration No. 333-267230 PROSPECTUS SUPPLEMENT (to the prospectus dated September 12, 2022)   Momentus Inc. 900,000 Shares of Class A Common Stock Pre-Funded Warrants to Purchase up to 2,787,000 Shares of Class A Common Stock Warrants to Purchase up to 3,687,000 Shares of Class A Common Stock Class A Common Stock Underlying the Pre-Funded Warra

January 16, 2024 EX-99.1

Momentus Announces $4.0 Million Registered Direct Offering Priced At-the-Market Under Nasdaq Rules

Exhibit 99.1 Momentus Announces $4.0 Million Registered Direct Offering Priced At-the-Market Under Nasdaq Rules SAN JOSE, Calif., January 16, 2024-Momentus Inc. (NASDAQ: MNTS) (“Momentus” or the “Company”), a U.S. commercial space company that offers satellite buses, transportation, and other in-space infrastructure services, today announced that it has entered into a securities purchase agreement

January 16, 2024 EX-4.2

orm of Warrant (incorporated by reference to Exhibit 4.2 to the Company's Current Report on Form 8-K, filed on January 16, 2024).

Exhibit 4.2 COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: Original Issuance Date: January [●], 2024 Initial Exercise Date: [●], 2024 THIS COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [INVESTOR] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time

January 16, 2024 8-K

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 January 12, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Ex

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 January 12, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Comm

January 16, 2024 EX-4.1

Form of Pre-Funded Warrant (incorporated by reference to Exhibit 4.1 to the Company's Current Report on Form 8-K, filed on January 16, 2024))

Exhibit 4.1 PRE-FUNDED COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: Issue Date: THIS PRE-FUNDED COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [INVESTOR] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after the date hereof (the “Initial

January 16, 2024 EX-10.1

Form of Securities Purchase Agreement (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K, filed on January 16, 2024).

Exhibit 10.1 EXECUTION VERSION SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of January [●], 2024, between Momentus Inc., a Delaware corporation (the “Company”), and each of the purchasers identified on the signature pages hereto (including its successors and assigns, the “Purchaser”). WHEREAS, subject to the terms and conditions set forth in this

January 12, 2024 8-K

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 January 10, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Ex

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 January 10, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Comm

January 9, 2024 8-K

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 January 3, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exa

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 January 3, 2024 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commi

December 6, 2023 8-K

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 December 6, 2023 Date of Report (date of earliest event reported) Momentus Inc. (Ex

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 December 6, 2023 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Comm

November 29, 2023 8-K

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 November 21, 2023 Date of Report (date of earliest event reported) Momentus Inc. (E

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 November 21, 2023 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Com

November 14, 2023 8-K

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 November 14, 2023 Date of Report (date of earliest event reported) Momentus Inc. (E

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 November 14, 2023 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Com

November 14, 2023 EX-99.2

Copyright 2023. Momentus Inc. Not Export Controlled. Any use, reproduction, or distribution without the express consent of Momentus is strictly prohibited. This Document is Public Domain Copyright 023. Momentus Inc. Not Export Controlled. Any use, re

Copyright 2023. Momentus Inc. Not Export Controlled. Any use, reproduction, or distribution without the express consent of Momentus is strictly prohibited. This Document is Public Domain Copyright 023. Momentus Inc. Not Export Controlled. Any use, reproduction, or distribution without the express consent of Momentu is strictly prohibited. Q3 2023 Business and Financial Highlights November 14, 2023

November 14, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

November 14, 2023 EX-99.1

MOMENTUS INC. CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) (in thousands, except share data)

Momentus Inc. Announces Third Quarter 2023 Financial Results SAN JOSE, Calif.-(BUSINESS WIRE)- Nov. 14, 2023- Momentus Inc. (NASDAQ: MNTS) (“Momentus” or the “Company”), a U.S. commercial space company that offers satellite buses, transportation, and other in-space infrastructure services, today announced its financial results for the third quarter of 2023. "In the third quarter, we saw significan

November 9, 2023 424B5

Momentus Inc. Warrants to Purchase up to 5,808,538 Shares of Class A Common Stock Class A Common Stock Underlying the Warrants

TABLE OF CONTENTS Filed pursuant to Rule 424(b)(5) Registration No. 333-267230 PROSPECTUS SUPPLEMENT (to the prospectus dated September 12, 2022)   Momentus Inc. Warrants to Purchase up to 5,808,538 Shares of Class A Common Stock Class A Common Stock Underlying the Warrants We are offering warrants (the “Warrants”) to purchase 5,808,538 shares of our Class A common stock, par value $.00001 per sha

November 9, 2023 424B5

Momentus Inc. 2,904,269 Shares of Class A Common Stock Issuable Upon Exercise of Warrants

Filed pursuant to Rule 424(b)(5) Registration No. 333-267230 PROSPECTUS SUPPLEMENT (to the prospectus dated September 12, 2022)   Momentus Inc. 2,904,269 Shares of Class A Common Stock Issuable Upon Exercise of Warrants This prospectus supplement updates, supersedes, and amends certain information contained in the prospectus dated September 12, 2022 (the “Original Prospectus”) as supplemented by t

November 9, 2023 EX-99.1

Momentus Announces Closing of Warrant Inducement Transaction for $6.5 Million in Gross Proceeds

Exhibit 99.1 Momentus Announces Closing of Warrant Inducement Transaction for $6.5 Million in Gross Proceeds SAN JOSE, Calif., November 9, 2023–Momentus Inc. (NASDAQ: MNTS) (“Momentus” or the “Company”), a U.S. commercial space company that offers satellite buses, transportation, and other in‑space infrastructure services, announced today that it has closed its previously announced agreement with

November 9, 2023 8-K

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 November 9, 2023 Date of Report (date of earliest event reported) Momentus Inc. (Ex

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 November 9, 2023 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Comm

November 7, 2023 EX-10.1

Form of Warrant Inducement Agreement (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on November 7, 2023).

Exhibit 10.1 MOMENTUS INC. 3901 N. First Street San Jose, California 95134 November 6, 2023 To the Holder of Warrants to Purchase Shares of Class A Common Stock of Momentus Inc. Issued on October 4, 2023, September 11, 2023 and February 27, 2023 Re: Inducement Offer to Exercise Existing Common Stock Purchase Warrants Dear Holder: Momentus Inc. (the “Company”) is pleased to offer (this “Inducement

November 7, 2023 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

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 November 6, 2023 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Comm

November 7, 2023 EX-4.1

COMMON STOCK PURCHASE WARRANT MOMENTUS INC.

Exhibit 4.1 COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: Original Issuance Date: November [●], 2023 Initial Exercise Date: [●], 2023 THIS COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [INVESTOR] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time

October 30, 2023 8-K

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 30, 2023 Date of Report (date of earliest event reported) Momentus Inc. (Ex

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 30, 2023 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Comm

October 17, 2023 SC 13G

MNTS / Momentus Inc - Class A / SCOGGIN MANAGEMENT LP Passive Investment

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b)(c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (Amendment No.

October 4, 2023 424B5

Momentus Inc. 290,000 Shares of Class A Common Stock Pre-Funded Warrants to Purchase up to 1,710,000 Shares of Class A Common Stock Warrants to Purchase up to 2,000,000 Shares of Class A Common Stock Class A Common Stock Underlying the Pre-Funded War

TABLE OF CONTENTS Filed pursuant to Rule 424(b)(5) Registration No. 333-267230 PROSPECTUS SUPPLEMENT (to the prospectus dated September 12, 2022)   Momentus Inc. 290,000 Shares of Class A Common Stock Pre-Funded Warrants to Purchase up to 1,710,000 Shares of Class A Common Stock Warrants to Purchase up to 2,000,000 Shares of Class A Common Stock Class A Common Stock Underlying the Pre-Funded Warra

October 3, 2023 EX-4.3

Form of Warrant Amendment Agreement (incorporated by reference to Exhibit 4.3 to the Company's Current Report on Form 8-K, filed on October 3, 2023)

Exhibit 4.3 AMENDMENT TO COMMON STOCK PURCHASE WARRANTS This AMENDMENT TO COMMON STOCK PURCHASE WARRANTS (this “Amendment”) is entered into as of October [●], 2023, by and between Momentus Inc., a Delaware corporation (the “Company”), and (the “Holder”). WHEREAS, the Holder is the holder of a Common Stock Purchase Warrant issued on (the “ Warrant”) to purchase shares of Class A common stock of the

October 3, 2023 EX-10.1

Form of Securities Purchase Agreement (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K, filed on October 3, 2023)

Exhibit 10.1 SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of October [●], 2023, between Momentus Inc., a Delaware corporation (the “Company”), and each of the purchasers identified on the signature pages hereto (including its successors and assigns, the “Purchaser”). WHEREAS, subject to the terms and conditions set forth in this Agreement and purs

October 3, 2023 EX-4.1

Form of Pre-Funded Warrant (incorporated by reference to Exhibit 4.1 to the Company's Current Report on Form 8-K, filed on October 3, 2023)

Exhibit 4.1 PRE-FUNDED COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: Issue Date: THIS PRE-FUNDED COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [INVESTOR] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after the date hereof (the “Initial

October 3, 2023 8-K

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 2, 2023 Date of Report (date of earliest event reported) Momentus Inc. (Exa

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 2, 2023 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Commi

October 3, 2023 EX-99.1

Momentus Announces $4.0 Million Registered Direct Offering Priced At-the-Market Under Nasdaq Rules

Exhibit 99.1 Momentus Announces $4.0 Million Registered Direct Offering Priced At-the-Market Under Nasdaq Rules SAN JOSE, Calif., October 2, 2023-Momentus Inc. (NASDAQ: MNTS) (“Momentus” or the “Company”), a U.S. commercial space company that offers satellite buses, transportation, and other in-space infrastructure services, today announced that it has entered into a securities purchase agreement

October 3, 2023 EX-4.2

Form of Warrant (incorporated by reference to Exhibit 4.2 to the Company's Current Report on Form 8-K, filed on October 3, 2023)

Exhibit 4.2 COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: Original Issuance Date: October [●], 2023 Initial Exercise Date: [●], 2023 THIS COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [INVESTOR] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time

September 18, 2023 SC 13D/A

MNTS / Momentus Inc - Class A / Prime Movers Lab Fund I LP Activist Investment

SC 13D/A 1 momentus13da.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 7)* MOMENTUS INC. (Name of Issuer) Common Stock, par value $0.00001 per share (Title of Class of Securities) 60879E 101 (CUSIP Number) Taylor Frankel c/o Prime Movers Lab P.O. Box 12829 Jackson, WY 83002 307-203-5036 (Name, Address

September 13, 2023 SC 13D/A

MNTS / Momentus Inc - Class A / Prime Movers Lab Fund I LP Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No.

September 12, 2023 8-K

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 September 11, 2023 Date of Report (date of earliest event reported) Momentus Inc. (

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 September 11, 2023 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Co

September 12, 2023 EX-99.1

Momentus Announces Closing of $5.0 Million Registered Direct Offering Priced At-the-Market Under Nasdaq Rules

Exhibit 99.1 Momentus Announces Closing of $5.0 Million Registered Direct Offering Priced At-the-Market Under Nasdaq Rules SAN JOSE, Calif., September 11, 2023–Momentus Inc. (NASDAQ: MNTS) (“Momentus” or the “Company”), a U.S. commercial space company that offers satellite buses, transportation, and other in-space infrastructure services, today announced that it has closed its previously announced

September 8, 2023 EX-99.1

Momentus Regains Compliance with Nasdaq Minimum Bid Price

Exhibit 99.1 Momentus Regains Compliance with Nasdaq Minimum Bid Price SAN JOSE, Calif., September 8, 2023-Momentus Inc. (NASDAQ: MNTS) (“Momentus” or the “Company”), a U.S. commercial space company that offers satellite buses, transportation, and other in-space infrastructure services, today announced that it has received formal notice from the Listing Qualifications staff of The Nasdaq Stock Mar

September 8, 2023 424B5

Momentus Inc. 210,000 Shares of Class A Common Stock Pre-Funded Warrants to Purchase up to 462,948 Shares of Class A Common Stock Series A Warrants to Purchase up to 672,948 Shares of Class A Common Stock Series B Warrants to Purchase up to 672,948 S

TABLE OF CONTENTS Filed pursuant to Rule 424(b)(5) Registration No. 333-267230 PROSPECTUS SUPPLEMENT (to the prospectus dated September 12, 2022)   Momentus Inc. 210,000 Shares of Class A Common Stock Pre-Funded Warrants to Purchase up to 462,948 Shares of Class A Common Stock Series A Warrants to Purchase up to 672,948 Shares of Class A Common Stock Series B Warrants to Purchase up to 672,948 Sha

September 8, 2023 8-K

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 September 8, 2023 Date of Report (date of earliest event reported) Momentus Inc. (E

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 September 8, 2023 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Com

September 7, 2023 EX-4.3

Form of Series B Warrant (incorporated by reference to Exhibit 4.1 to the Company's Current Report on Form 8-K, filed on September 7, 2023)

Exhibit 4.3 SERIES B COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: Original Issuance Date: September [●], 2023 Initial Exercise Date: [●], 2023 THIS SERIES B COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [INVESTOR] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set

September 7, 2023 8-K

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 September 7, 2023 Date of Report (date of earliest event reported) Momentus Inc. (E

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 September 7, 2023 Date of Report (date of earliest event reported) Momentus Inc. (Exact name of registrant as specified in its charter) Delaware 001-39128 84-1905538 (State or other jurisdiction of incorporation or organization) (Com

September 7, 2023 EX-4.1

Form of Pre-Funded Warrant (incorporated by reference to Exhibit 4.1 to the Company's Current Report on Form 8-K, filed on September 7, 2023)

Exhibit 4.1 PRE-FUNDED COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: Issue Date: THIS PRE-FUNDED COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [INVESTOR] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after the date hereof (the “Initial

September 7, 2023 EX-99.1

Momentus Announces $5.0 Million Registered Direct Offering Priced At-the-Market Under Nasdaq Rules

Exhibit 99.1 Momentus Announces $5.0 Million Registered Direct Offering Priced At-the-Market Under Nasdaq Rules SAN JOSE, Calif., September 7, 2023–Momentus Inc. (NASDAQ: MNTS) (“Momentus” or the “Company”), a U.S. commercial space company that offers satellite buses, transportation, and other in-space infrastructure services, today announced that it has entered into a securities purchase agreemen

September 7, 2023 EX-4.2

Form of Series A Warrant (incorporated by reference to Exhibit 4.2 to the Company's Current Report on Form 8-K, filed on September 7, 2023)

Exhibit 4.2 SERIES A COMMON STOCK PURCHASE WARRANT MOMENTUS INC. Warrant Shares: Original Issuance Date: September [●], 2023 Initial Exercise Date: [●], 2023 THIS SERIES A COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [INVESTOR] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set

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