WPRT Westport Fuel Systems Inc.
Westport Fuel Systems Inc. (WPRT) Institutional Ownership
What the institutions did with WPRT last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| HEIGHTS CAPITAL MANAGEMENT, INC | 1.3M | 36.3% |
| ROYCE & ASSOCIATES LP | 1.1M | 31.0% |
| GRACE & WHITE INC /NY | 714.1K | 19.6% |
| Baird Financial Group, Inc. | 140.0K | 3.8% |
| CITADEL ADVISORS LLC | 90.0K | 2.5% |
| US BANCORP \DE\ | 73.1K | 2.0% |
| GOLDMAN SACHS GROUP INC | 31.6K | 0.9% |
| Cambridge Investment Research Advisors, Inc. | 23.5K | 0.6% |
| UBS Group AG | 19.3K | 0.5% |
| TD Waterhouse Canada Inc. | 18.1K | 0.5% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 18.0K | 0.5% |
| JANE STREET GROUP, LLC | 13.9K | 0.4% |
| HRT FINANCIAL LP | 13.3K | 0.4% |
| LPL Financial LLC | 11.3K | 0.3% |
| ROYAL BANK OF CANADA | 6.0K | 0.2% |
| MORGAN STANLEY | 3.8K | 0.1% |
| Tower Research Capital LLC (TRC) | 2.6K | 0.1% |
| GROUP ONE TRADING LLC | 2.0K | 0.1% |
| WELLS FARGO & COMPANY/MN | 1.7K | 0.0% |
| SIMPLEX TRADING, LLC | 1.6K | 0.0% |
| Allworth Financial LP | 1.0K | 0.0% |
| SWAN Capital LLC | 1.0K | 0.0% |
| JONES FINANCIAL COMPANIES LLLP | 710 | 0.0% |
| OSAIC HOLDINGS, INC. | 583 | 0.0% |
| Ascentis Wealth Management, LLC | 400 | 0.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| HEIGHTS CAPITAL MANAGEMENT, INC | New | 0 | 1.3M | +1.3M |
| ROYCE & ASSOCIATES LP | Increased | 491.9K | 1.1M | +639.6K |
| GRACE & WHITE INC /NY | Reduced | 1.0M | 714.1K | -292.6K |
| US BANCORP \DE\ | Reduced | 166.8K | 73.1K | -93.7K |
| CITADEL ADVISORS LLC | Reduced | 154.9K | 90.0K | -64.9K |
| Baird Financial Group, Inc. | Reduced | 163.9K | 140.0K | -23.9K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | 0 | 18.0K | +18.0K |
| HRT FINANCIAL LP | New | 0 | 13.3K | +13.3K |
| Centiva Capital, LP | Sold Out | 13.0K | 0 | -13.0K |
| Cambridge Investment Research Advisors, Inc. | Increased | 11.8K | 23.5K | +11.7K |
| GOLDMAN SACHS GROUP INC | Reduced | 38.2K | 31.6K | -6.6K |
| UBS Group AG | Increased | 16.4K | 19.3K | +2.9K |
| ROYAL BANK OF CANADA | Reduced | 7.9K | 6.0K | -1.9K |
| SIMPLEX TRADING, LLC | New | 0 | 1.6K | +1.6K |
| Federation des caisses Desjardins du Quebec | Reduced | 1.7K | 348 | -1.3K |
| JANE STREET GROUP, LLC | Reduced | 15.2K | 13.9K | -1.3K |
| LPL Financial LLC | Increased | 10.0K | 11.3K | +1.3K |
| GROUP ONE TRADING LLC | Increased | 897 | 2.0K | +1.1K |
| Tower Research Capital LLC (TRC) | Reduced | 3.7K | 2.6K | -1.1K |
| WELLS FARGO & COMPANY/MN | Increased | 1.4K | 1.7K | +295 |
| MORGAN STANLEY | Reduced | 4.1K | 3.8K | -288 |
| FIFTH THIRD BANCORP | Sold Out | 170 | 0 | -170 |
| NATIONAL BANK OF CANADA /FI/ | Sold Out | 124 | 0 | -124 |
| SECURITY NATIONAL BANK OF SIOUX CITY IOWA /IA/ | New | 0 | 124 | +124 |
| OSAIC HOLDINGS, INC. | Increased | 483 | 583 | +100 |
| THOMPSON INVESTMENT MANAGEMENT, INC. | Reduced | 125 | 60 | -65 |
| Rockefeller Capital Management L.P. | Reduced | 85 | 30 | -55 |
| MAI Capital Management | Sold Out | 33 | 0 | -33 |
| BROWN BROTHERS HARRIMAN & CO | New | 0 | 10 | +10 |
| Caitong International Asset Management Co., Ltd | New | 0 | 2 | +2 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.