Pioneer Power Solutions
PPSI
34 hedge funds and large institutions have $4.12M invested in Pioneer Power Solutions in 2025 Q4 according to their latest regulatory filings, with 10 funds opening new positions, 10 increasing their positions, 8 reducing their positions, and 4 closing their positions.
150% more first-time investments, than exits
New positions opened: 10 | Existing positions closed: 4
25% more capital invested
Capital invested by funds: $3.28M → $4.12M (+$837K)
25% more repeat investments, than reductions
Existing positions increased: 10 | Existing positions reduced: 8
21% more funds holding
Funds holding: 28 → 34 (+6)
1% more ownership
Funds ownership: 6.85% → 7.85% (+1%)
24% less call options, than puts
Call options by funds: $96K | Put options by funds: $126K
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
SIA
Spectrum Investment Advisors
Mequon,
Wisconsin
|
+$576K |
| 2 |
XT
XTX Topco
George Town,
Cayman Islands
|
+$57.2K |
| 3 |
SMC
Smith, Moore & Co
Clayton,
Missouri
|
+$54.4K |
| 4 |
Renaissance Technologies
New York
|
+$41.7K |
| 5 |
Dimensional Fund Advisors
Austin,
Texas
|
+$25.7K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
-$133K |
| 2 |
Goldman Sachs
New York
|
-$73K |
| 3 |
Group One Trading
Chicago,
Illinois
|
-$43.7K |
| 4 |
CCM
Corsair Capital Management
New York
|
-$43.2K |
| 5 |
Simplex Trading
Chicago,
Illinois
|
-$35K |
PPSI Hedge Fund Activity: Q4 2025 in Review
34 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in Pioneer Power Solutions (PPSI) for Q4 2025, worth a combined $4.12M — up 25% from $3.28M a quarter earlier.
Buyers outnumbered sellers: 10 funds opened new PPSI positions and 4 closed out — a net gain of 6 holders — while 10 added to existing stakes and 8 trimmed.
The largest buyer was Spectrum Investment Advisors, opening a new position worth an estimated $576K. The largest seller was Jane Street, cutting an estimated $133K.
- 34 institutional investors held Pioneer Power Solutions (PPSI) as of Q4 2025, up from 28 in Q3 2025.
- Funds reported $4.12M of Pioneer Power Solutions stock for Q4 2025, up 25% quarter-over-quarter.
- 10 funds opened new Pioneer Power Solutions positions in Q4 2025 and 4 closed out, a net change of +6 holders.
- The largest Pioneer Power Solutions buyer in Q4 2025 was Spectrum Investment Advisors, an estimated $576K added.
- The largest Pioneer Power Solutions seller in Q4 2025 was Jane Street, an estimated $133K sold.
Based on aggregated 13F filings for Q4 2025.