MOBIX LABS INC

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

No. 333-

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORMS-1

REGISTRATION STATEMENT UNDER

THE SECURITIES ACT OF 1933

(Exact name of registrant as specified in its charter)

15420 Laguna Canyon Rd., Suite 100

Irvine, California 92618

(949) 808-8888

(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)

Keyvan Samini

President and Chief Financial Officer

15420 Laguna Canyon Rd., Suite 100

Irvine, California 92618

(949) 808-8888

(Name, address, including zip code, and telephone number, including area code, of agent for service)

Copies of all communications, including communications sent to agent for service, should be sent to:

Raymond Lee, Esq.Laurie L. Green, Esq.Greenberg Traurig, LLP18565 Jamboree RoadSuite 500Irvine, CA 92612(949) 732-6510

Approximate date of commencement of proposed sale to the public:

From time to time after this registration statement becomes effective

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, check the following box:☒

If this Form is filed to registered additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.☐

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.☐

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.☐

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

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act☐

The registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act or until this registration statement shall become effective on such date as the Commission, acting pursuant to said Section 8(a), may determine.

The information in this preliminary prospectus is not complete and may be changed. These securities may not be sold until the registration statement filed with the Securities and Exchange Commission is effective. The preliminary prospectus is not an offer to sell these securities and does not constitute the solicitation of offers to buy these securities in any jurisdiction where the offer or sale is not permitted.

SUBJECT TO COMPLETION, DATED APRIL 1, 2024

mobix labs, inc.

9,500,000 SHARES OF CLASS A COMMON STOCK

This prospectus relates to the offer and sale of up to 9,500,000 shares of our Class A common stock, par value $0.00001 per share, or Class A Common Stock, by B. Riley Principal Capital II, LLC, whom we refer to in this prospectus as “B. Riley Principal Capital II” or the “Selling Stockholder.”

The shares of Class A Common Stock to which this prospectus relates may be issued by us to B. Riley Principal Capital II pursuant to a Common Stock Purchase Agreement, dated as of March 18, 2024, that we entered into with B. Riley Principal Capital II, which we refer to in this prospectus as the Purchase Agreement. Such shares of Class A Common Stock include up to 9,500,000 shares of Class A Common Stock that we may, in our sole discretion, elect to sell to B. Riley Principal Capital II, from time to time after the date of this prospectus, pursuant to the Purchase Agreement.

We are not selling any securities under this prospectus and will not receive any of the proceeds from the sale of our Class A Common Stock by the Selling Stockholder. However, we may receive up to $100,000,000 aggregate gross proceeds under the Purchase Agreement from sales of Class A Common Stock we may elect to make to B. Riley Principal Capital II pursuant to the Purchase Agreement after the date of this prospectus. See “The Committed Equity Facility” for a description of the Purchase Agreement and “Selling Stockholder” for additional information regarding B. Riley Principal Capital II.

B. Riley Principal Capital II may sell or otherwise dispose of the Class A Common Stock described in this prospectus in a number of different ways and at varying prices. See “Plan of Distribution (Conflict of Interest)” for more information about how B. Riley Principal Capital II may sell or otherwise dispose of the Class A Common Stock pursuant to this prospectus. B. Riley Principal Capital II is an “underwriter” within the meaning of Section 2(a)(11) of the Securities Act of 1933, as amended, or the Securities Act.

We will pay the expenses incurred in registering under the Securities Act the offer and sale of the shares of Class A Common Stock to which this prospectus relates by the Selling Stockholder, including legal and accounting fees. We have also engaged Seaport Global Securities LLC to act as a “qualified independent underwriter” in this offering, whose fees and expenses will be borne by the Selling Stockholder. See section titled “Plan of Distribution (Conflict of Interest)” beginning on page 115 of this prospectus.

Shares of our Class A Common Stock are listed on the Nasdaq Stock Market LLC (“Nasdaq”) under the symbol “MOBX”. On March 28, 2024, the closing price of our Class A Common Stock was $2.01.

We are an “emerging growth company” and a “smaller reporting company” as defined under the federal securities laws and, as such, have elected to comply with certain reduced public company reporting requirements for this prospectus and may elect to do so in future filings. See “Prospectus Summary-Emerging Growth Company and Smaller Reporting Company.”

Investing in our securities involves a high degree of risk. You should review carefully the risks and uncertainties described in the section titled “Risk Factors” beginning on page 13 of this prospectus, and under similar headings in any amendments or supplements to this prospectus.

Neither the Securities and Exchange Commission (the “SEC”) nor any state securities commission has approved or disapproved of these securities, or passed upon the accuracy or adequacy of this prospectus. Any representation to the contrary is a criminal offense.

The date of this prospectus is , 2024.