Pioneer Power Solutions's top three insider shareholders as of September 09, 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 | 4,025,355 | 0 | 4,025,355 | 81.7% | 03 Mar, 2026 |
| 2 | Wojciech Michalec | Chief Financial Officer | 650,000 | 0 | 650,000 | 13.2% | 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 | David Tesler | Director | Acquired A | 10,000 | $0.00 | $0 | 10,000 | 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 |
| 04 Dec, 2024 | Ian Ross | Director | Disposed S | 1,000 | $6.01 | $6.01K | 22,500 | Direct |
| 05 Dec, 2024 | David Tesler | Director | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |
| 05 Dec, 2024 | Kytchener Stevenson Whyte | Director | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |
| 05 Dec, 2024 | Jonathan Tulkoff | Director | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |
| 05 Dec, 2024 | Jonathan Tulkoff | Director | 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 | 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 |
| 04 Dec, 2024 | Ian Ross | Director | Disposed S | 1,000 | $6.01 | $6.01K | 22,500 | Direct |
| 05 Dec, 2024 | Kytchener Stevenson Whyte | 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 |