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WESTPORT FUEL SYSTEMS INC. — Investor Relations & Filings

Ticker · WPRT ISIN · CA9609083097 US Manufacturing
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Filings indexed 829 across all filing types
Latest filing 2026-06-04 Regulatory Filings
Country US United States of America
Listing US WPRT

About WESTPORT FUEL SYSTEMS INC.

https://wfsinc.com

Westport Fuel Systems Inc. engineers, manufactures, and supplies advanced alternative fuel systems and components focused on decarbonizing hard-to-abate transport applications. The company's core technology is its High-Pressure Direct Injection (HPDI) fuel system, which enables heavy-duty engines to operate on clean gaseous fuels such as liquefied natural gas (LNG), compressed natural gas (CNG), liquefied petroleum gas (LPG), and hydrogen. Westport provides comprehensive solutions, including on-engine systems and off-engine high-pressure controls and components, primarily for Original Equipment Manufacturers (OEMs) to facilitate emissions reduction.

Recent filings

Filing Released Lang Actions
6-K
Regulatory Filings
2026-06-04 English
SD
Regulatory Filings Classification · 90% confidence The document is an SEC Form SD “Specialized Disclosure Report” filed under Rule 13p-1 to disclose conflict minerals information. It is not an announcement of another report but is itself a regulatory compliance filing. It does not present financial statements like an annual or interim report, nor is it a management, ESG or investor presentation. Therefore it falls under the general regulatory filings category (RNS).
2026-05-27 English
FORM 6-K
Regulatory Filings Classification · 87% confidence The document is a U.S. SEC Form 6-K submitted by a foreign private issuer. Form 6-K filings are general regulatory disclosures for foreign issuers and do not fall into specific categories like earnings releases, annual reports, or management changes. Since there is no dedicated category for Form 6-K, it defaults to the "Regulatory Filings" (RNS) catch-all category.
2026-05-27 English
6-K
Regulatory Filings Classification · 91% confidence The document is a Form 6-K filed by a foreign private issuer (Westport Fuel Systems Inc.) under the U.S. Securities Exchange Act, providing notice of auditor changes and incorporating related exhibits by reference. It functions as a regulatory filing announcement rather than containing substantive financial statements or being a standalone report (e.g., 10-K or IR). Therefore, it falls under the general regulatory filings category (RNS).
2026-05-21 English
6-K - WESTPORT FUEL SYSTEMS INC. (0001370416) (Filer)
Regulatory Filings Classification · 88% confidence The document is a Form 6-K filing by a foreign private issuer (Westport Fuel Systems) furnishing a press release as Exhibit 99.1. It contains no substantive financial statements or management discussion, but is a regulatory compliance submission under the Securities Exchange Act. It does not match any specific category (e.g., Annual Report, Interim Report, Earnings Release) and is best classified as a general regulatory filing.
2026-05-08 English
20-F - WESTPORT FUEL SYSTEMS INC. (0001370416) (Filer)
Annual Report
2026-04-23 English

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