PIONEER POWER SOLUTIONS, INC. (PPSI) — Institutional Holders, Q2 2026
35 institutional investment managers reported a PPSI position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $5.8M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
PPSI in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- ACADIAN ASSET MANAGEMENTNew · +127,977 sh+$504.2K
- JANE STREET GROUPNew · +114,403 sh+$450.7K
- CITADEL ADVISORSNew · +70,794 sh+$278.9K
- HRT FINANCIALNew · +64,889 sh+$255.7K
- RENAISSANCE TECHNOLOGIESAdded · +62,288 sh+$245.4K
Biggest sellers
- Squarepoint OpsSold out · -67,558 sh-$266.2K
- MARSHALL WACE, LLPSold out · -15,454 sh-$60.9K
- GSA CAPITAL PARTNERS LLPSold out · -13,388 sh-$52.7K
- GROUP ONE TRADING, L.P.Sold out · -8,928 sh-$35.2K
- Tower Research Capital (TRC)Trimmed · -1,663 sh-$6.6K
PPSI 13F holders ranked 1–35 of 35
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT#1 · 195,788 sh | 195,788 | $771.4K | 0.00% | -0.2% |
| 2 | Spectrum Investment Advisors#2 · 137,500 sh | 137,500 | $541.8K | 0.22% | 0.0% |
| 3 | ACADIAN ASSET MANAGEMENT#3 · 127,977 sh | 127,977 | $503.0K | <0.01% | New |
| 4 | RENAISSANCE TECHNOLOGIES#4 · 126,488 sh | 126,488 | $498.4K | <0.01% | +97.0% |
| 5 | GEODE CAPITAL MANAGEMENT#5 · 116,631 sh | 116,631 | $459.6K | 0.00% | +1.1% |
| 6 | JANE STREET GROUP#6 · 114,403 sh | 114,403 | $450.7K | 0.00% | New |
| 7 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#7 · 80,369 sh | 80,369 | $316.7K | 0.00% | +44.6% |
| 8 | DIMENSIONAL FUND ADVISORS#8 · 80,092 sh | 80,092 | $315.6K | <0.01% | +3.7% |
| 9 | CITADEL ADVISORS#9 · 70,794 sh | 70,794 | $278.9K | 0.00% | New |
| 10 | HRT FINANCIAL#10 · 64,889 sh | 64,889 | $255.0K | <0.01% | New |
| 11 | BlackRock#11 · 59,974 sh | 59,974 | $236.3K | 0.00% | +109.2% |
| 12 | VANGUARD FIDUCIARY#12 · 48,231 sh | 48,231 | $190.0K | 0.00% | +35.5% |
| 13 | STATE STREET#13 · 34,028 sh | 34,028 | $134.1K | 0.00% | 0.0% |
| 14 | XTX Topco Ltd#14 · 27,432 sh | 27,432 | $108.1K | <0.01% | +26.2% |
| 15 | NewEdge Advisors#15 · 21,786 sh | 21,786 | $85.8K | <0.01% | 0.0% |
| 16 | JAMES INVESTMENT RESEARCH#16 · 21,786 sh | 21,786 | $85.8K | — | 0.0% |
| 17 | Sage Capital Management#17 · 21,000 sh | 21,000 | $82.7K | — | 0.0% |
| 18 | NORTHERN#18 · 20,974 sh | 20,974 | $82.6K | 0.00% | +45.0% |
| 19 | Stratos Wealth Advisors#19 · 20,800 sh | 20,800 | $82.0K | <0.01% | +20.2% |
| 20 | Legacy Advisors#20 · 16,025 sh | 16,025 | $63.1K | — | 0.0% |
| 21 | SMITH, MOORE#21 · 13,000 sh | 13,000 | $51.2K | <0.01% | 0.0% |
| 22 | SIMPLEX TRADING#22 · 12,751 sh | 12,751 | $50.2K | 0.00% | +3543.1% |
| 23 | UBS Group AG#23 · 12,523 sh | 12,523 | $49.3K | 0.00% | New |
| 24 | Pekin Hardy Strauss#24 · 10,000 sh | 10,000 | $39.4K | <0.01% | New |
| 25 | Rockefeller Capital Management L.P.#25 · 10,000 sh | 10,000 | $39.4K | <0.01% | 0.0% |
| 26 | MORGAN STANLEY#26 · 7,740 sh | 7,740 | $30.5K | 0.00% | 0.0% |
| 27 | OSAIC#27 · 1,076 sh | 1,076 | $4.2K | 0.00% | -0.5% |
| 28 | JONES FINANCIAL COMPANIES LLLP#28 · 1,000 sh | 1,000 | $3.9K | 0.00% | 0.0% |
| 29 | NATIONAL BANK OF CANADA#29 · 300 sh | 300 | $1.2K | 0.00% | 0.0% |
| 30 | Global Retirement Partners#30 · 253 sh | 253 | $997.00 | 0.00% | — |
| 31 | Tower Research Capital (TRC)#31 · 220 sh | 220 | $867.00 | 0.00% | -88.3% |
| 32 | SBI Securities , Ltd.#32 · 158 sh | 158 | $623.00 | — | -1.9% |
| 33 | WELLS FARGO & COMPANY#33 · 48 sh | 48 | $190.00 | 0.00% | 0.0% |
| 34 | Caitong International Asset Management , Ltd#34 · 30 sh | 30 | $118.00 | 0.00% | New |
| 35 | Strive Financial Group#35 · 3 sh | 3 | $12.00 | 0.00% | New |
Funds that sold out of PPSI in Q2 2026 (7)
Held PPSI at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| Squarepoint Ops67,558 sh | 67,558 | $219.6K |
| MARSHALL WACE, LLP15,454 sh | 15,454 | $50.2K |
| GSA CAPITAL PARTNERS LLP13,388 sh | 13,388 | $44.0K |
| GROUP ONE TRADING, L.P.8,928 sh | 8,928 | $29.0K |
| ARMSTRONG ADVISORY GROUP400 sh | 400 | $1.3K |
| Clarity Asset Management250 sh | 250 | $813.00 |
| ROYAL BANK OF CANADA2 sh | 2 | $0.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.