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 1926, 2026

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)	(Commission File Number)	(I.R.S. Employer Identification No.)

1762 Automation Parkway San Jose, California		95131
(Address of Principal Executive Offices)		(Zip Code)

(650) 564-7820

Registrant’'s telephone number, including area code

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

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

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

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

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

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

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

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

Emerging growth company ☐

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

Item 51.0701 ~~Submission~~Entry ofinto ~~Matters to~~ a ~~Vote~~Material ofDefinitive ~~Security Holders~~Agreement.

On May 1926, 2026, Momentus Inc., a Delaware corporation (“Momentus” or the “Company”), ~~held~~entered ~~its~~into ~~2026~~a ~~Annual~~Securities ~~Meeting~~Purchase ofAgreement ~~Stockholders~~ (the “~~Annual~~Securities Purchase ~~Meeting~~Agreement”). Awith ~~quorum~~institutional ~~was~~investors ~~present~~(the at“Investors”) for a private placement of (i) 2,173,420 shares of the ~~meeting~~Company’s Class A common stock, par value $0.00001 ~~The~~per ~~final~~share ~~results~~(the ~~of voting~~“Common Stock”), for ~~each~~$8.50 ~~matter~~per ~~submitted~~share and (ii) pre-funded warrants to apurchase ~~vote~~up to 768,580 shares of ~~stockholders~~Common atStock (the ~~Annual~~“Pre-Funded ~~Meeting~~Warrants” ~~are~~and, ~~set~~together ~~forth~~with ~~below~~the Common Stock, the “Securities”).

~~Proposal~~The 1private placement closed on May 28, 2026. The Company received aggregate gross proceeds from the private placement of approximately $25 million, before deducting estimated placement agent commissions and expenses, which are payable by the Company.

~~Election~~The Securities Purchase Agreement contains customary representations, warranties and agreements by the Company, customary conditions to closing, indemnification obligations of ~~Two~~the ~~Directors~~Company and the Investors, other obligations of the parties and termination provisions. The representations, warranties and covenants in the Securities Purchase Agreement were made only for purposes of such agreement and as of specific dates, were solely for the benefit of the parties to such agreement, and may be subject to limitations agreed upon by the contracting parties.

~~Voting~~The ~~results~~Company agreed to use the net proceeds from the private placement for general corporate purposes, which may include repayment of principal on the ~~election~~Company’s indebtedness, capital expenditures, and funding its working capital needs, but not in violation of ~~directors~~the ~~were~~Foreign Corrupt Practices Act of 1977, as ~~follows:~~amended, or the regulations promulgated by the Office of Foreign Assets Control of the U.S. Treasury Department. The Securities Purchase Agreement is governed by the laws of the State of New York.

Momentus Nominees	For	Withheld	Broker Non-Votes
Chris Hadfield	892,532	22,286	1,361,297
John C. Rood	890,446	24,372	1,361,297

The Company also agreed that, from the date of the Securities Purchase Agreement until 5 days after the date that the resale registration statement required by the Registration Rights Agreement (as defined below) becomes effective (the “Effective Date”), subject to certain limited exceptions set forth in the Securities Purchase Agreement, the Company will not (i) issue, enter into any agreement to issue or announce the issuance or proposed issuance of any shares of Common Stock or Common Stock Equivalents (as defined in the Securities Purchase Agreement), or (ii) file any registration statement or any amendment or supplement thereto other than as contemplated pursuant to the Registration Rights Agreement. Further, until 30 days after the Effective Date, the Company is prohibited from effecting or entering into an agreement to effect any issuance by the Company or any of its subsidiaries of Common Stock or Common Stock Equivalents (or a combination of units thereof) involving a Variable Rate Transaction (as defined in the Securities Purchase Agreement), subject to certain limited exceptions set forth in the Securities Purchase Agreement; provided, however, that sales of shares of Common Stock at a price no less than $20.00 per share in an “at the market” offering with A.G.P./Alliance Global Partners (the “Placement Agent”) acting as the sales agent may be made, and after 5 days following the Effective Date, such sales may be made at a price below $20.00 per share.

~~Accordingly,~~The ~~both~~purchase price of ~~the~~each ~~Company’s~~Pre-Funded ~~nominees~~Warrant ~~were~~equals ~~elected~~$8.50 toper ~~serve~~share asminus ~~directors~~the $0.00001 exercise price per share of the ~~Company~~Pre-Funded ~~until~~Warrant. ~~the~~The Pre-Funded ~~2029~~Warrants ~~Annual~~are ~~Meeting~~exercisable ofat ~~Stockholders~~any ~~and~~time ~~until~~after their ~~respective successors~~original ~~are appointed~~issuance, ~~elected,~~ and ~~qualified~~will not expire until exercised in full.

~~Proposal~~The 2Pre-Funded Warrants provide that the Investor will not have the right to exercise any portion thereof if such exercise would cause the aggregate number of shares of Common Stock beneficially owned by the Investor (together with its affiliates) to exceed 9.99% of the number of shares of Common Stock outstanding immediately after giving effect to the exercise, as such percentage ownership is determined in accordance with the terms of the Pre‑Funded Warrants.

~~Ratification~~In connection with the private placement, the Company entered into a Registration Rights Agreement with the Investor (the “Registration Rights Agreement”) requiring the Company to file a registration statement covering the resale of ~~Appointment~~all of ~~Auditors~~the Registrable Securities (as defined in the Registration Rights Agreement) with the Securities and Exchange Commission (the “SEC”) no later than the 10th trading day following the date of the Registration Rights Agreement, and have the registration statement declared effective by the SEC as promptly as practicable after the filing thereof, but in any event no later than 15th calendar day following the date of the Registration Rights Agreement, or in the event of a “limited review” by the SEC, the 30th day following the date of the Registration Rights Agreement, or in the event of a “full review” by the SEC, the 45th day following the date of the Registration Rights Agreement.

~~Ratification~~Upon the occurrence of any Event (as defined in the ~~appointment~~Registration ofRights ~~Frank~~Agreement), ~~Rimerman~~which, +among ~~Co.~~others, ~~LLP~~prohibits asthe Investor from reselling the Securities for more than 10 consecutive calendar days or more than an aggregate of 15 calendar days during any 12-month period, the Company’s ~~independent~~is ~~registered~~obligated ~~public~~to ~~accounting~~pay ~~firm~~to ~~for~~the Investor, on each monthly anniversary of each such Event, an amount in cash, as partial liquidated damages and not as a penalty, equal to the ~~2026~~product ~~fiscal~~of ~~year~~1.5% ~~was~~multiplied ~~approved~~by the aggregate subscription amount paid by such Investor pursuant to the ~~following~~Securities ~~vote:~~Purchase Agreement.

For	Against	Abstain
2,256,257	14,739	5,119

The Company may not file any other registration statements until all Registrable Securities (as defined in the Registration Rights Agreement) are registered pursuant to a registration statement that is declared effective by the SEC, provided that the Company may file amendments to registration statements filed prior to the date of the Registration Rights Agreement so long as no new securities are registered on any such existing registration statements. All fees and expenses incident to the performance of or compliance with the Registration Rights Agreement by the Company will be borne by the Company, whether or not any Registrable Securities (as defined in the Registration Rights Agreement) are sold pursuant to a registration statement.

~~Proposal~~In 3connection with the private placement, on May 26, 2026, the Company entered into a Placement Agency Agreement with the Placement Agent. As part of its compensation for acting as Placement Agent for the private placement, the Company paid the Placement Agent a cash fee of 7.0% of the aggregate gross proceeds and issued to the Placement Agent warrants to purchase 147,100 shares of Common Stock (the “Placement Agent Warrants”) at an exercise price of $9.35 per share, which are exercisable 180 days from the date of commencement of sales of the private placement offering.

~~Equity~~The ~~Incentive~~above ~~Plan~~summary ~~Proposal~~of the private placement, the Pre-Funded Warrants, the Placement Agent Warrants, the Securities Purchase Agreement and the Registration Rights Agreement does not purport to be complete and is qualified in its entirety by reference to such applicable agreements, copies of which are attached as Exhibits 4.1, 4.2, 10.1 and 10.2 to this Current Report on Form 8-K and incorporated herein by reference.

~~Approval~~This ofCurrent Report on Form 8-K shall not constitute an ~~amendment~~offer to ~~the~~sell ~~Company’s~~or ~~2021~~the ~~Equity~~solicitation ~~Incentive~~of ~~Plan~~an offer to ~~increase~~buy the ~~number~~Common Stock discussed herein, nor shall there be any offer, solicitation, or sale of ~~shares~~Common ~~available~~Stock ~~for~~in ~~issuance~~any ~~thereunder~~state ~~was~~or ~~approved~~jurisdiction byin which such offer, solicitation or sale would be unlawful prior to registration or qualification under the ~~following~~securities ~~vote:~~laws of any such state or jurisdiction.

For	Against	Abstain	Broker Non-Vote
795,227	113,598	5,993	1,361,297

Item 3.02

Unregistered Sales of Equity Securities.

~~Proposal~~The information contained above in Item 1.01 of this Current Report on Form 8-K related to the Securities is hereby incorporated by reference into this Item 3.02. The Securities and the Placement Agent Warrants were sold without registration under the Securities Act of 1933, as amended (the “Securities Act”), in reliance on the exemptions provided by Section 4(a)(2) of the Securities Act as a transaction not involving a public offering and Rule 506(b) of Regulation D promulgated under the Securities Act as sales to accredited investors and in reliance on similar exemptions under applicable state laws.

~~Evergreen~~Item ~~Share~~7.01 ~~Proposal~~Regulation FD Disclosure.

~~Approval~~On ofMay an27, ~~amendment~~2026, toMomentus ~~the~~issued ~~Company’s~~a ~~2021~~press ~~Equity~~release ~~Incentive~~announcing ~~Plan~~the topricing ~~increase~~of ~~annual~~the ~~evergreen~~private ~~percentage~~placement. ~~increase~~A tocopy of the ~~number~~press ofrelease ~~shares~~is ~~available~~attached ~~for~~as ~~issuance~~Exhibit 99.1 ~~thereunder~~to ~~was~~this ~~approved~~Current ~~by the~~Report ~~following~~on ~~vote:~~Form 8-K.

For	Against	Abstain	Broker Non-Vote
668,009	117,635	129,174	1,361,297

This information and the information contained in Exhibit 99.1 is furnished and shall not be deemed “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, and shall not be deemed to be incorporated by reference in any filing under the Securities Act or the Securities Exchange Act of 1934, as amended, except as may be expressly set forth by specific reference in any such filing, regardless of any general incorporation language in the filing.

~~Proposal~~The 5Company does not have, and expressly disclaims, any obligation to release publicly any updates or any changes in its expectations or any change in events, conditions, or circumstances on which any forward-looking statement is based.

Say-on-Pay Proposal

Approval, on an advisory basis, of the compensation of the Company’s named executive officers was approved by the following vote:

For	Against	Abstain	Broker Non-Vote
842,147	54,357	18,314	1,361,297

Proposal 6

Say-on-Pay Frequency Proposal

Approval, on an advisory basis, of the frequency of future advisory votes on the compensation of the Company’s named executive officers was approved at a frequency of every “three years” by the following vote:

1 Year	2 Years	3 Years	Abstain
218,956	3,315	667,946	24,601

Item 9.01

Financial Statements and Exhibits.

(d) Exhibits~~. The exhibits listed on the exhibit index accompanying this Current Report on Form 8-K are furnished herewith.~~

Exhibit No.		Description
Exhibit Number		Exhibit Description
10.1		Second Amendment to the 2021 Equity Incentive Plan.
4.1		Form of Pre-Funded Warrant
104		Cover Page Interactive Data File (embedded within the Inline XBRL document).
4.2		Form of Placement Agent Warrant
10.1		Form of Securities Purchase Agreement
10.2		Form of Registration Rights Agreement
99.1		Press Release, dated May 27, 2026, issued by Momentus Inc. announcing the pricing of the private placement.
104		Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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

		By:	/s/ Lon Ensler
		Name:	Lon Ensler
Dated:	May 2229, 2026	Title:	Chief Financial Officer

Filing Compare · Momentus Inc.