51 institutions reported holding $8.3M of WESTPORT FUEL (WPRT) in SEC 13F filings for 2026-06-30. Largest institutional holders: HEIGHTS CAPITAL MANAGEMENT, INC ($3.0M), ROYCE & ASSOCIATES LP ($2.6M), GRACE & WHITE INC /NY ($1.6M), Baird Financial Group, Inc. ($316,454), CITADEL ADVISORS LLC ($270,203). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-06-30