New Positions
12 managers initiated
Top five by reported value
- ROYCE & ASSOCIATES LP$357.2K
- JANE STREET GROUP, LLC$60.5K
- XTX Topco Ltd$30.6K
- LPL Financial LLC$15.8K
- RENAISSANCE TECHNOLOGIES LLC$15.7K
Westport Fuel Systems Inc TORONTO STOCK EXCHANGE:WPRT
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
12 new8 added27 reduced4 exited
Total Institutional Holders
47
as of 2025-12-31
Top Holder
GRACE & WHITE INC /NY
$1.8M
Largest QoQ Increase
ROYCE & ASSOCIATES LP
+227,504 sh
Largest QoQ Decrease
Baird Financial Group, Inc.
-371,792 sh
New Positions(12)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| ROYCE & ASSOCIATES LP | 227,504 | +227,504 | $357.2K | +$357.2K | — |
| JANE STREET GROUP, LLC | 38,543 | +38,543 | $60.5K | +$60.5K | — |
| XTX Topco Ltd | 19,468 | +19,468 | $30.6K | +$30.6K | — |
| LPL Financial LLC | 10,073 | +10,073 | $15.8K | +$15.8K | — |
| RENAISSANCE TECHNOLOGIES LLC | 10,023 | +10,023 | $15.7K | +$15.7K | — |
| Arkadios Wealth Advisors | 10,000 | +10,000 | $15.7K | +$15.7K | — |
| Allworth Financial LP | 1,025 | +1,025 | $1.6K | +$1.6K | — |
| Disciplined Equity Management, Inc. | 300 | +300 | $618 | +$618 | — |
| FIFTH THIRD BANCORP | 170 | +170 | $267 | +$267 | — |
| Planning Project LLC | 150 | +150 | $236 | +$236 | — |
| HRT FINANCIAL LP | 10,113 | +10,113 | $15 | +$15 | — |
| AllSquare Wealth Management LLC | 6 | +6 | $14 | +$14 | — |
Added To(8)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| GRACE & WHITE INC /NY | 1,160,087 | +114,787 | $1.8M | -$551.5K | 11.0% |
| CITADEL ADVISORS LLC | 150,186 | +82,053 | $235.8K | +$81.1K | 120.4% |
| SIMPLEX TRADING, LLC | 6,705 | +5,793 | $10.5K | +$10.5K | 635.2% |
| GOLDMAN SACHS GROUP INC | 38,753 | +7,401 | $60.8K | -$10.3K | 23.6% |
| UBS Group AG | 16,515 | +1,197 | $25.9K | -$8.8K | 7.8% |
| Tower Research Capital LLC (TRC) | 3,585 | +2,400 | $5.6K | +$2.9K | 202.5% |
| CITIGROUP INC | 2,554 | +1,750 | $4.0K | +$2.2K | 217.7% |
| CBIZ Investment Advisory Services, LLC | 45 | +20 | $71 | +$14 | 80.0% |
Reduced(27)
Sold Out(4)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| AMH Equity Ltd | 0 | -137,000 | $0 | -$311.0K | — |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0 | -10,196 | $0 | -$23.1K | — |
| VSM Wealth Advisory, LLC | 0 | -2,350 | $0 | -$5.3K | — |
| GROUP ONE TRADING, L.P. | 0 | -146 | $0 | -$331 | — |
Top Holders by reported value
Ranked by the dollar value reported on the latest Form 13F. Share counts reflect long positions as of 2025-12-31.
| Manager | Shares | $ Value | Δ Shares | QoQ % |
|---|---|---|---|---|
| GRACE & WHITE INC /NY | 1,160,087 | $1.8M | +114,787 | 11.0% |
| ROYCE & ASSOCIATES LP | 227,504 | $357.2K | +227,504 | — |
| Baird Financial Group, Inc. | 177,282 | $278.3K | -371,792 | -67.7% |
| US BANCORP \DE\ | 166,829 | $261.9K | 0 | 0.0% |
| CITADEL ADVISORS LLC | 150,186 | $235.8K | +82,053 | 120.4% |
| GOLDMAN SACHS GROUP INC | 38,753 | $60.8K | +7,401 | 23.6% |
| JANE STREET GROUP, LLC | 38,543 | $60.5K | +38,543 | — |
| XTX Topco Ltd | 19,468 | $30.6K | +19,468 | — |
| TD Waterhouse Canada Inc. | 18,092 | $28.6K | 0 | 0.0% |
| UBS Group AG | 16,515 | $25.9K | +1,197 | 7.8% |
| Royal Bank of Canada | 12,813 | $20.0K | -160,981 | -92.6% |
| LPL Financial LLC | 10,073 | $15.8K | +10,073 | — |
| RENAISSANCE TECHNOLOGIES LLC | 10,023 | $15.7K | +10,023 | — |
| Arkadios Wealth Advisors | 10,000 | $15.7K | +10,000 | — |
| SIMPLEX TRADING, LLC | 6,705 | $10.5K | +5,793 | 635.2% |
| Tower Research Capital LLC (TRC) | 3,585 | $5.6K | +2,400 | 202.5% |
| CITIGROUP INC | 2,554 | $4.0K | +1,750 | 217.7% |
| MORGAN STANLEY | 2,123 | $3.3K | -2,246 | -51.4% |
| Federation des caisses Desjardins du Quebec | 1,673 | $2.6K | -478 | -22.2% |
| BANK OF AMERICA CORP /DE/ | 1,558 | $2.4K | 0 | 0.0% |
New & Closed Positions this quarter
Closed Positions
4 managers exited
Top five by prior-quarter value
Methodology
Form 13F is the SEC's quarterly disclosure for institutional investment managers exercising discretion over $100 million or more in qualifying U.S. equity securities. Managers must file within 45 days of each calendar quarter end, which is why holdings shown here reflect a snapshot at the period date — not real-time positioning.
Quarter-over-quarter deltas compare each manager's most recently reported share count for WPRT against its prior-quarter count. New positions are entries where the prior count was zero; closed positions are entries where the current count is zero. Amendments (13F-HR/A) replace prior filings for the same period.
Source: SEC EDGAR Form 13F (XML information tables). Dollar values are as reported by the manager and may use mid-quarter pricing conventions. CUSIP-to-ticker resolution is best-effort.