PPSI — PIONEER POWER SOLUTIONS, INC.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.
Performance
Technicals
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Measured signals that fired on PPSI
| date | signal | measured base rate |
|---|---|---|
| 2026-08-07 | Short volume far above its own normal short | -0.76% over 21 days · t = -2.79 · n = 5,897 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-03-02 | MAZUREK NATHAN Chief Executive Officer | Option exercise | 1.0K | 2.18 | 2.2K |
| 2025-11-18 | MAZUREK NATHAN Chief Executive Officer | Open-market purchase | 10.0K | 3.39 | 33.9K |
| 2025-05-02 | Michalec Wojciech Chief Financial Officer | Shares withheld for tax | 25.0K | 5.92 | 148.0K |
| 2024-12-20 | Michalec Wojciech Chief Financial Officer | Open-market sale | 13.0K | 4.09 | 53.3K |
| 2024-12-19 | Michalec Wojciech Chief Financial Officer | Open-market sale | 2.0K | 4.12 | 8.1K |
| 2024-12-05 | Cohn Yossi Director | Option exercise | 10.0K | 3.31 | 33.1K |
| 2024-12-05 | Cohn Yossi Director | Option exercise | 10.0K | 1.68 | 16.8K |
| 2024-12-05 | Cohn Yossi Director | Option exercise | 1.5K | 3.17 | 4.8K |
| 2024-12-05 | Cohn Yossi Director | Option exercise | 1.0K | 3.68 | 3.7K |
| 2024-12-05 | Michalec Wojciech Chief Financial Officer | Grant or award | 50.0K | — | — |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | 637.4K | 196.1K |
| Spectrum Investment Advisors, Inc. | 446.9K | 137.5K |
| GEODE CAPITAL MANAGEMENT, LLC | 375.1K | 115.4K |
| DIMENSIONAL FUND ADVISORS LP | 251.0K | 77.2K |
| Squarepoint Ops LLC | 219.6K | 67.6K |
| RENAISSANCE TECHNOLOGIES LLC | 208.7K | 64.2K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 180.7K | 55.6K |
| VANGUARD FIDUCIARY TRUST CO | 115.7K | 35.6K |
| STATE STREET CORP | 110.6K | 34.0K |
| BlackRock, Inc. | 93.2K | 28.7K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| 8-K | 2026-08-17 | 2026-08-17 | on EDGAR ↗ |
| 10-Q | 2026-08-14 | 2026-06-30 | on EDGAR ↗ |
| 8-K | 2026-05-18 | 2026-05-18 | on EDGAR ↗ |
| 8-K | 2026-05-18 | 2026-05-18 | on EDGAR ↗ |
| 10-Q | 2026-05-15 | 2026-03-31 | on EDGAR ↗ |
| 8-K | 2026-04-08 | 2026-04-08 | on EDGAR ↗ |
| 10-K | 2026-04-08 | 2025-12-31 | on EDGAR ↗ |
| NT 10-K | 2026-04-01 | 2025-12-31 | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- Pioneer Power Solutions, Inc. (PPSI) filed form 8-K · 2026-08-17 · SEC EDGAR
- PIONEER POWER SOLUTIONS, INC. (PPSI) filed form 8-K · 2026-08-17 · SEC EDGAR
- PIONEER POWER SOLUTIONS, INC. (PPSI) filed form 10-Q · 2026-08-14 · SEC EDGAR
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