Westport Fuel Systems
Supplies HPDI, hydrogen, and fuel-system technology for transport and industrial customers.
$1.82
After-hours close−0.02 (−1.29%)
At close$1.85(−0.27%)
Something off on this page? Send us feedback.
Breakdown13F · Form 4
Institutions 11.22%Insiders —
Shares outstanding 19.00M · Float 13.34M · 70.2% free float
Insiders — no current Form 4 position.
Institutions13F, as of Mar 31, 2026
44 holders · 2.13M shares · 8 new positions · 16 increased · 8 reduced · 12 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Grace & White Inc /NY | 1.01M | 5.30% | −153.4K | Apr 21, 2026 |
| Royce & Associates LP | 491.9K | 2.59% | +264.4K | May 12, 2026 |
| US Bancorp \DE\ | 166.8K | 0.88% | 0 | May 15, 2026 |
| Baird Financial Group, Inc. | 163.9K | 0.86% | −13.4K | May 14, 2026 |
| Citadel Advisors LLC | 154.9K | 0.82% | +126.7K | May 15, 2026 |
| Goldman Sachs Group Inc | 38.2K | 0.20% | −508 | May 15, 2026 |
| TD Waterhouse Canada Inc. | 18.1K | 0.10% | +22 | May 12, 2026 |
| UBS Group AG | 16.4K | 0.09% | −97 | May 5, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Kevin Douglasincl. Michelle Douglas, Nonexempt Trust FBO James E. Douglas, III +7 more | 10.50% | 1.82M | 13D | May 1, 2025 ↗ |
| CVI Investments, Inc. | 9.90% | 1.93M | 13G | Jun 29, 2026 ↗ |
| Grace & White, Inc. | 6.70% | 1.16M | 13G | Jan 27, 2026 ↗ |
| Alex Cushner | 6.68% | 1.14M | 13G | Feb 14, 2025 ↗ |
| Baird Robert W & Co Inc /WI/ | 5.30% | 916.2K | 13G | Feb 11, 2025 ↗ |
| Royce & Associates LP | 5.09% | 1.13M | 13G | Jul 22, 2026 ↗ |
InsidersForm 4
No current Form 4 position on record.
1 ten-percent owner holds 15.0K shares by Form 4, outside the officers-and-directors figure above · 1 person has not refiled in the last 18 months (40 shares), so they are not in the figure above
Latest trades
Nothing filed in the last 12 months.
CongressHouse and Senate disclosures
Not reported.