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WPRT 424B3: Secondary offering

Westport Fuel Systems

Filed with the SEC on · accession 0001628280-26-062320

WPRT filed a 424B3 (prospectus (offering)) with the SEC on Sep 16, 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 entered into a common shares purchase agreement with Roth Principal Investments to sell up to $25 million of its common shares at the company's discretion over a 36-month period, with a registration statement to be filed for the resale of up to 12,690,355 shares.

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

Key details

Commitment Amount$25.0M
Maximum Purchase Shares$12.7M
IssuerWestport Fuel Systems Inc.
InvestorRoth Principal Investments, LLC

How WPRT stock reacted

Close before

$1.97

Sep 15, 2026

First close after

+1.02%

$1.99

5 trading days

+0.51%

$1.98

Since filing

+12.69%

$2.22

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Frequently asked questions

What did WPRT file with the SEC on Sep 16, 2026?

WPRT filed a 424B3 (Secondary offering). Westport Fuel Systems entered into a common shares purchase agreement with Roth Principal Investments to sell up to $25 million of its common shares at the company's discretion over a 36-month period, with a registration statement to be filed for the resale of up to 12,690,355 shares.

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 $1.97 before the filing and $1.99 on Sep 16, 2026 (+1.02%). Five trading days later: $1.98 (+0.51%).

Other WPRT SEC filings

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