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MOBX 424B3: Shelf registration

Mobix Labs

Filed with the SEC on · accession 0001493152-26-045975

MOBX filed a 424B3 (prospectus (offering)) with the SEC on Oct 6, 2026. Mobix Labs filed a 424B3 prospectus covering the resale of up to 5,000,000 shares of Class A Common Stock by a selling stockholder, issuable upon conversion of Series A 10% Convertible Preferred Stock and related warrants. The stock moved +72.3% by the first close after the filing.

Summary of the filing

Mobix Labs filed a 424B3 prospectus covering the resale of up to 5,000,000 shares of Class A Common Stock by a selling stockholder, issuable upon conversion of Series A 10% Convertible Preferred Stock and related warrants. The company may receive up to $6,000,000 if the August 2026 Preferred Warrant is exercised, with proceeds intended for working capital and general corporate purposes.

For details, click here →How to read a 424B3 →

Key details

Maximum proceeds to company from exercise of August 2026 Preferred Warrant$6.0M
Number of Class A Common Stock shares registered for resaleshares 5.0M
Last closing price of Class A Common Stock on September 2, 2026$1
IssuerMobix Labs, Inc.
Selling stockholderSelling Stockholder (unnamed)

How MOBX stock reacted

Close before

$0.65

Oct 5, 2026

First close after

+72.28%

$1.12

5 trading days

+19.95%

$0.78

Since filing

-13.69%

$0.56

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Frequently asked questions

What did MOBX file with the SEC on Oct 6, 2026?

MOBX filed a 424B3 (Shelf registration). Mobix Labs filed a 424B3 prospectus covering the resale of up to 5,000,000 shares of Class A Common Stock by a selling stockholder, issuable upon conversion of Series A 10% Convertible Preferred Stock and related warrants. The company may receive up to $6,000,000 if the August 2026 Preferred Warrant is exercised, with proceeds intended for working capital and general corporate purposes.

What does a shelf registration mean for MOBX stock?

New shares dilute existing holders and are often sold at a discount to the market price.

How do I read a 424B3?

The final terms of an offering of shares or bonds. Look at price, number of shares and the discount to the market price. Large offerings dilute existing shareholders.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 424B3 (prospectus (offering)): The final terms of an offering of shares or bonds.

How did MOBX stock react to this filing?

MOBX closed at $0.65 before the filing and $1.12 on Oct 6, 2026 (+72.28%). Five trading days later: $0.78 (+19.95%).

Other MOBX SEC filings

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