Pioneer Power Solutions's top three insider shareholders as of September 29, 2026 are Nathan Mazurek (Chief Executive Officer, 2.01Mn shares), Nathan Mazurek (Chief Executive Officer, 1.98Mn shares), Wojciech Michalec (Chief Financial Officer, 375.00K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Nathan Mazurek | Chief Executive Officer | 3,988,355 | 0 | 3,988,355 | 81.6% | 03 Mar, 2026 |
| 2 | Wojciech Michalec | Chief Financial Officer | 650,000 | 0 | 650,000 | 13.3% | 02 May, 2025 |
| 3 | Thomas Klink | Director | 137,500 | 0 | 137,500 | 2.8% | 22 Oct, 2024 |
| 4 | Ian Ross | Director | 46,000 | 0 | 46,000 | 0.9% | 06 Dec, 2024 |
| 5 | Jonathan Tulkoff | Director | 44,500 | 0 | 44,500 | 0.9% | 24 Oct, 2024 |
| 6 | Yossi Cohn | Director | 23,500 | 0 | 23,500 | 0.5% | 06 Dec, 2024 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 02 Mar, 2026 | Nathan Mazurek | Chief Executive Officer | Acquired M | 1,000 | $2.18 | $2.18K | 1,977,496 | Direct |
| 02 Mar, 2026 | Nathan Mazurek | Chief Executive Officer | Disposed M | 1,000 | $0.00 | $0 | 0 | Direct |
| 18 Nov, 2025 | Nathan Mazurek | Chief Executive Officer | Acquired P | 10,000 | $3.39 | $33.87K | 1,976,496 | Direct |
| 02 May, 2025 | Wojciech Michalec | Chief Financial Officer | Disposed F | 25,000 | $5.92 | $148.00K | 275,000 | Direct |
| 19 Dec, 2024 | Wojciech Michalec | Chief Financial Officer | Disposed S | 1,960 | $4.12 | $8.08K | 313,040 | Direct |
| 20 Dec, 2024 | Wojciech Michalec | Chief Financial Officer | Disposed S | 13,040 | $4.09 | $53.33K | 300,000 | Direct |
| 05 Dec, 2024 | Jonathan Tulkoff | Director | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |
| 05 Dec, 2024 | Yossi Cohn | Director | Acquired M | 1,000 | $3.68 | $3.68K | 2,000 | Direct |
| 05 Dec, 2024 | Kytchener Stevenson Whyte | Director | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |
| 05 Dec, 2024 | David Tesler | Director | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |
| 05 Dec, 2024 | Wojciech Michalec | Chief Financial Officer | Acquired A | 50,000 | — | — | 315,000 | Direct |
| 05 Dec, 2024 | Thomas Klink | Director | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |
| 05 Dec, 2024 | Nathan Mazurek | Chief Executive Officer | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |
| 04 Dec, 2024 | Ian Ross | Director | Disposed S | 1,000 | $6.01 | $6.01K | 22,500 | Direct |
| 05 Dec, 2024 | Yossi Cohn | Director | Acquired M | 10,000 | $1.68 | $16.80K | 12,000 | Direct |
| 05 Dec, 2024 | Ian Ross | Director | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |
| 05 Dec, 2024 | Yossi Cohn | Director | Acquired M | 10,000 | $3.31 | $33.10K | 22,000 | Direct |
| 05 Dec, 2024 | Yossi Cohn | Director | Acquired M | 1,500 | $3.17 | $4.76K | 23,500 | Direct |
| 05 Dec, 2024 | Yossi Cohn | Director | Disposed M | 1,000 | $0.00 | $0 | 0 | Direct |
| 05 Dec, 2024 | Yossi Cohn | Director | Disposed M | 10,000 | $0.00 | $0 | 0 | Direct |