Westport Fuel Systems
WPRT
48 hedge funds and large institutions have $3.13M invested in Westport Fuel Systems in 2025 Q4 according to their latest regulatory filings, with 11 funds opening new positions, 7 increasing their positions, 10 reducing their positions, and 3 closing their positions.
310% more call options, than puts
Call options by funds: $168K | Put options by funds: $41K
267% more first-time investments, than exits
New positions opened: 11 | Existing positions closed: 3
14% more funds holding
Funds holding: 42 → 48 (+6)
1.4% less ownership
Funds ownership: 12.88% → 11.49% (-1.4%)
30% less repeat investments, than reductions
Existing positions increased: 7 | Existing positions reduced: 10
38% less capital invested
Capital invested by funds: $5.07M → $3.13M (-$1.95M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
RA
Royce & Associates
New York
|
+$426K |
| 2 |
GWI
Grace & White Inc
Ny,
New York
|
+$215K |
| 3 |
Jane Street
New York
|
+$53.4K |
| 4 |
XT
XTX Topco
George Town,
Cayman Islands
|
+$36.4K |
| 5 |
HF
HRT Financial
New York
|
+$18.9K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Baird Financial Group
Milwaukee,
Wisconsin
|
-$695K |
| 2 |
Royal Bank of Canada
Toronto,
Ontario, Canada
|
-$313K |
| 3 |
Citadel Advisors
Miami,
Florida
|
-$42.4K |
| 4 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$23.1K |
| 5 |
VWA
VSM Wealth Advisory
Hunt Valley,
Maryland
|
-$5.33K |
WPRT Hedge Fund Activity: Q4 2025 in Review
48 of the 8,270 institutional investors tracked by Wall St. Rank reported a position in Westport Fuel Systems (WPRT) for Q4 2025, worth a combined $3.13M — down 38% from $5.07M a quarter earlier.
Buyers outnumbered sellers: 11 funds opened new WPRT positions and 3 closed out — a net gain of 8 holders — while 7 added to existing stakes and 10 trimmed.
The largest buyer was Royce & Associates, opening a new position worth an estimated $426K. The largest seller was Baird Financial Group, cutting an estimated $695K.
- 48 institutional investors held Westport Fuel Systems (WPRT) as of Q4 2025, up from 42 in Q3 2025.
- Funds reported $3.13M of Westport Fuel Systems stock for Q4 2025, down 38% quarter-over-quarter.
- 11 funds opened new Westport Fuel Systems positions in Q4 2025 and 3 closed out, a net change of +8 holders.
- The largest Westport Fuel Systems buyer in Q4 2025 was Royce & Associates, an estimated $426K added.
- The largest Westport Fuel Systems seller in Q4 2025 was Baird Financial Group, an estimated $695K sold.
Based on aggregated 13F filings for Q4 2025.