# EDGAR Filing Document

**Accession Number:** 0001370416
**File Stem:** 0001171843-26-001812
**Filing Date:** 2026-3
**Character Count:** 7368
**Document Hash:** 4065847b75945ee8aaebfa2a7af90f4d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001171843-26-001812.hdr.sgml**: 20260320

**ACCESSION NUMBER**: 0001171843-26-001812

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 3

**CONFORMED PERIOD OF REPORT**: 20260320

**FILED AS OF DATE**: 20260320

**DATE AS OF CHANGE**: 20260320

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** WESTPORT FUEL SYSTEMS INC.
- **CENTRAL INDEX KEY:** 0001370416
- **STANDARD INDUSTRIAL CLASSIFICATION:** ENGINES & TURBINES [3510]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 000000000

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34152
- **FILM NUMBER:** 26776062

**BUSINESS ADDRESS:**
- **STREET 1:** 1691 WEST 75TH AVENUE
- **CITY:** VANCOUVER
- **STATE:** A1
- **ZIP:** V6P6G2
- **BUSINESS PHONE:** 6047182000

**MAIL ADDRESS:**
- **STREET 1:** 1691 WEST 75TH AVENUE
- **CITY:** VANCOUVER
- **STATE:** A1
- **ZIP:** V6P6G2

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** WESTPORT INNOVATIONS INC
- **DATE OF NAME CHANGE:** 20060726

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**Form 6-K**

**REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934**

**For the month of March 2026**

Commission File Number: **001-34152**

**WESTPORT FUEL SYSTEMS INC.**

(Translation of registrant's name into English)

**1691 West 75th Avenue, Vancouver, British Columbia, Canada, V6P 6P2**

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F [ X ] &nbsp;&nbsp;&nbsp;&nbsp; Form 40-F [ ]

------

**INCORPORATION BY REFERENCE**

Exhibit 99.1 to this Form 6-K is hereby incorporated by reference into the Company's Registration Statement on Form F-3 (File No.333-289669) and the Registration Statement on Form S-8, as amended (Registration No.333-248912).

On March 20, 2026, the Registrant issued a press release, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

[(c) Exhibit 99.1. Press release dated March 20, 2026](exh_991.htm)

------

**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

---

| | |
|:---|:---|
|  | <u>**&nbsp;&nbsp;&nbsp;&nbsp;WESTPORT FUEL SYSTEMS INC.&nbsp;&nbsp;&nbsp;&nbsp;**</u> |
|  | (Registrant) |
| Date: March 20, 2026 | <u>&nbsp;&nbsp;&nbsp;&nbsp;/s/ Elizabeth Owens&nbsp;&nbsp;&nbsp;&nbsp;</u> |
|  | Elizabeth Owens |
|  | Chief Financial Officer |

---

## Exhibit 99.1

**EXHIBIT 99.1**

![logo](exh991small_1.jpg)

**Westport's Statement on Cybersecurity Incident**

VANCOUVER, British Columbia, March 20, 2026 (GLOBE NEWSWIRE) -- On March 17, 2026, Westport Fuel Systems Inc. ("Westport" or "the Company") (TSX:WPRT / Nasdaq: WPRT) identified unauthorized access to its network. This incident involved unauthorized access to certain of Westport's internal IT business applications along with other business and employee information.

Immediately upon learning of the incident, the Company engaged experts, activated our incident response protocol, and took action to contain the incident. Our investigation is continuing. We are in the process of identifying additional security protocols that we can implement to respond to the evolving landscape of cybersecurity threats.

The Company's manufacturing operations are managed on dedicated servers that are separate from those accessed in connection with this incident. As a result, the incident has not affected the continuity of our manufacturing activities. Our ability to fulfill customer orders and maintain operational delivery remains fully intact, with no disruptions anticipated. We currently do not expect a material impact on our daily business operations.

Given the timing of this incident within our year-end financial reporting cycle, we are undertaking an essential internal assessment of the integrity and accuracy of our financial results prior to releasing them. As a result, we expect we will be filing our annual financial results after the March 31, 2026 continuous disclosure deadline required under applicable securities laws.

**About Westport Fuel Systems** 

Westport is a technology and innovation company connecting synergistic technologies to power a cleaner tomorrow. As a leading supplier of affordable, alternative fuel, low-emissions transportation technologies, we design, manufacture, and supply advanced components and systems that enable the transition from traditional fuels to cleaner energy solutions.

Our proven technologies support a wide range of clean fuels – including natural gas, renewable natural gas, and hydrogen – empowering OEMs and commercial transportation industries to meet performance demands, regulatory requirements, and climate targets in a cost-effective way. With decades of expertise and a commitment to engineering excellence, Westport is helping our partners achieve sustainability goals—without compromising performance or cost-efficiency – making clean, scalable transport solutions a reality.

Westport Fuel Systems is headquartered in Vancouver, Canada. For more information, visit www.westport.com.

***Cautionary Note Regarding Forward Looking Statements***

*This press release contains forward-looking statements, including statements regarding the impact of the cybersecurity incident on the continuity of Westport's manufacturing activities, Westport's ability to fulfill customer orders and maintain operational delivery, the materiality of the impact of the cybersecurity event on Westport's daily operations, the integrity and accuracy of our financial statements, and the anticipated timing of the filing of Westport's annual financial results. These forward-looking statements are neither promises nor guarantees but involve known and unknown risks and uncertainties and are based on both the views of management and assumptions that may cause actual results to differ materially from those expressed or implied. These risks, uncertainties and assumptions include those related to the cybersecurity incident, general economic conditions of and access to the capital and debt markets, solvency, governmental policies and regulation, foreign exchange rate fluctuations, supply-chain factors and other risks and assumptions described in our most recent Annual Information Form and other filings with securities regulators. Readers should not place undue reliance on any such forward-looking statements, which speak only as of the date of publication. We disclaim any obligation to publicly update or revise such statements to reflect any change in our expectations or in events, conditions or circumstances on which any such statements may be based, or that may affect the likelihood that actual results will differ from those set forth in these forward looking statements except as required by National Instrument 51-102. The contents of any website, RSS feed or twitter account referenced in this press release are not incorporated by reference herein.*

**Contact Information**

Investor Relations

Westport Fuel Systems

**T:** +1 604-718-2046

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;