Every 424B that Westport Fuel Systems Inc (WPRT) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 424B covers the supplement that carries the terms of a priced offering, so if you follow WPRT and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full WPRT filings page.
Westport Fuel Systems Inc. (WPRT), now Aetherion Technologies Inc., changed its name on October 14, 2026. The company expects its common shares to begin trading under AETR on Nasdaq and the Toronto Stock Exchange on or about October 23, 2026, subject to final exchange approvals; until then, trading continues under WPRT. The company’s CUSIP and ISIN numbers will change.
The prospectus supplement updates the existing prospectus with the name-change information.
Westport Fuel Systems Inc. changed its name to Aetherion Technologies Inc. effective October 14, 2026. Its common shares are expected to begin trading under ticker symbol AETR on Nasdaq and the TSX on or about October 23, 2026, subject to final exchange approvals; trading continues under WPRT until then. The company’s CUSIP and ISIN numbers will change. On October 15, 2026, the last reported common-share prices were $1.82 on Nasdaq and C$2.54 on the TSX.
Westport Fuel Systems Inc. registered up to 12,690,355 common shares for resale by Roth Principal Investments, LLC, representing shares Westport may elect to issue and sell to Roth under a committed equity facility. After Commencement, Westport may sell up to $25,000,000 in aggregate gross proceeds at its discretion over a period of up to 36 months, but is not obligated to sell. Westport receives no proceeds from Roth’s public resales; proceeds from sales to Roth are intended for working capital and general corporate purposes. Market-open and intraday purchases are priced at VWAP less 3.0%; pre-market and post-market purchases are priced at VWAP less 5.0%.
Nasdaq rules cap issuance at 3,797,247 shares unless TSX and shareholder approvals are obtained or the average purchase price equals or exceeds $1.9957; a separate 4.99% beneficial ownership limit applies. If all registered shares were issued, they would represent approximately 66.8% of the 18,995,734 shares outstanding as of September 15, 2026. Management identifies substantial doubt about the company’s ability to continue as a going concern, projecting cash and cash equivalents will be insufficient to fund operations through the next 12 months from its June 30, 2026 interim financial statements.
Westport Fuel Systems Inc. (WPRT) established a committed equity facility with Roth Principal Investments, giving Westport the right, but not the obligation, to sell up to US$25,000,000 of common shares over a commitment period of up to 36 months, subject to price and volume conditions. A related registration registers the resale by Roth of up to 12,690,355 common shares acquired under this facility. Individual purchases may be made during market, intraday, pre‑market and post‑market sessions at discounts of 3% or 5% to VWAP, provided the prior Nasdaq close is at least US$1.00. Issuances are capped at 3,797,247 shares (19.99% of pre‑agreement shares) unless shareholder and TSX approvals or a pricing safe harbor remove this cap, and Roth cannot exceed 4.99% beneficial ownership. Westport expects any proceeds to be used for working capital and general corporate purposes and will pay up to US$500,000 in commitment fees plus legal and underwriting-related costs.
Westport Fuel Systems is conducting a registered offering of 1,600,000 common shares and pre-funded warrants to purchase up to 3,254,369 common shares as set forth in a prospectus supplement dated June 22, 2026. The combined offering price is $2.06 per Share and $2.05999 per Pre-Funded Warrant, with the Pre-Funded Warrants exercisable at $0.00001 per share.
The prospectus supplement states the issuer expects net proceeds of approximately $8.9 million assuming full exercise of the Pre-Funded Warrants (excluding any proceeds from Private Warrants). The Pre-Funded Warrants and Private Warrants contain a 9.99% Beneficial Ownership Limitation and are not listed for trading. Management discloses a material uncertainty about the company’s ability to continue as a going concern and indicates proceeds will be used for working capital and general corporate purposes.