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WPRT 424B3: Secondary offering

Westport Fuel Systems

Filed with the SEC on · accession 0001628280-26-063649

WPRT filed a 424B3 (prospectus (offering)) with the SEC on Sep 28, 2026. The final terms of an offering of shares or bonds. The stock moved +1.0% by the first close after the filing.

Summary of the filing

Westport Fuel Systems filed a prospectus for the resale of up to 12,690,355 common shares by Roth Principal Investments LLC under a committed equity facility, with potential gross proceeds to the company of up to $25,000,000 from future sales to the selling shareholder.

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

Key details

Maximum aggregate gross proceeds from share sales to selling shareholder$25.0M
Number of common shares registered for resale$12.7M
IssuerWestport Fuel Systems Inc.
Selling shareholder/underwriterRoth Principal Investments, LLC
Qualified independent underwriterDigital Offering, LLC

How WPRT stock reacted

Close before

$2.03

Sep 25, 2026

First close after

+0.99%

$2.05

5 trading days

-7.39%

$1.88

Since filing

+9.36%

$2.22

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Frequently asked questions

What did WPRT file with the SEC on Sep 28, 2026?

WPRT filed a 424B3 (Secondary offering). Westport Fuel Systems filed a prospectus for the resale of up to 12,690,355 common shares by Roth Principal Investments LLC under a committed equity facility, with potential gross proceeds to the company of up to $25,000,000 from future sales to the selling shareholder.

What does a secondary offering mean for WPRT 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 WPRT stock react to this filing?

WPRT closed at $2.03 before the filing and $2.05 on Sep 28, 2026 (+0.99%). Five trading days later: $1.88 (-7.39%).

Other WPRT SEC filings

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