Pioneer Power Solutions's top three insider shareholders as of May 23, 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).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Nathan Mazurek | Chief Executive Officer | 2,010,859 | 0 | 13 Sep, 2023 |
| Ian Ross | - | 23,500 | 0 | 18 Nov, 2024 |
| Jonathan Tulkoff | - | 44,500 | 0 | 24 Oct, 2024 |
| Yossi Cohn | - | 23,500 | 0 | 06 Dec, 2024 |
| Thomas Klink | - | 137,500 | 0 | 22 Oct, 2024 |
| Wojciech Michalec | Chief Financial Officer | 375,000 | 0 | 26 Apr, 2022 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 02 Mar, 2026 | Nathan Mazurek | Common Stock, par value $0.001 per share | A | 1,000 | $2.18 | 1,977,496 | D | M |
| 02 Mar, 2026 | Nathan Mazurek | Stock Option (Right to Buy) | D | 1,000 | $0.00 | 0 | D | M |
| 18 Nov, 2025 | Nathan Mazurek | Common Stock, par value $0.001 per share | A | 10,000 | $3.39 | 1,976,496 | D | P |
| 02 May, 2025 | Wojciech Michalec | Common Stock, par value $0.001 per share | D | 25,000 | $5.92 | 275,000 | D | F |
| 19 Dec, 2024 | Wojciech Michalec | Common Stock, par value $0.001 per share | D | 1,960 | $4.12 | 313,040 | D | S |
| 20 Dec, 2024 | Wojciech Michalec | Common Stock, par value $0.001 per share | D | 13,040 | $4.09 | 300,000 | D | S |
| 05 Dec, 2024 | Nathan Mazurek | Stock Option (Right to Buy) | A | 10,000 | $0.00 | 10,000 | D | A |
| 05 Dec, 2024 | David Tesler | Stock Option (Right to Buy) | A | 10,000 | $0.00 | 10,000 | D | A |
| 05 Dec, 2024 | Jonathan Tulkoff | Stock Option (Right to Buy) | A | 10,000 | $0.00 | 10,000 | D | A |
| 05 Dec, 2024 | Jonathan Tulkoff | Stock Option (Right to Buy) | A | 10,000 | $0.00 | 10,000 | D | A |
| 05 Dec, 2024 | Kytchener Stevenson Whyte | Stock Option (Right to Buy) | A | 10,000 | $0.00 | 10,000 | D | A |
| 05 Dec, 2024 | Kytchener Stevenson Whyte | Stock Option (Right to Buy) | A | 10,000 | $0.00 | 10,000 | D | A |
| 05 Dec, 2024 | Wojciech Michalec | Common Stock, par value $0.001 per share | A | 50,000 | - | 315,000 | D | A |
| 05 Dec, 2024 | David Tesler | Stock Option (Right to Buy) | A | 10,000 | $0.00 | 10,000 | D | A |
| 05 Dec, 2024 | Yossi Cohn | Common Stock, par value $0.001 per share | A | 1,000 | $3.68 | 2,000 | D | M |
| 05 Dec, 2024 | Thomas Klink | Stock Option (Right to Buy) | A | 10,000 | $0.00 | 10,000 | D | A |
| 04 Dec, 2024 | Ian Ross | COMMON STOCK, PAR VALUE $0.001 PER SHARE | D | 1,000 | $6.01 | 22,500 | D | S |
| 04 Dec, 2024 | Ian Ross | COMMON STOCK, PAR VALUE $0.001 PER SHARE | D | 1,000 | $6.01 | 22,500 | D | S |
| 05 Dec, 2024 | Ian Ross | Stock Option (Right to Buy) | A | 10,000 | $0.00 | 10,000 | D | A |
| 05 Dec, 2024 | Ian Ross | Stock Option (Right to Buy) | A | 10,000 | $0.00 | 10,000 | D | A |