As of May 30, 2026, Northern Technologies International's top three insider holders are Matthew C Wolsfeld (Cfo And Corporate Secretary, 168.15K shares), Ramani Narayan (Director, 106.76K shares), G Patrick Lynch (President And Ceo, 105.28K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Richard Nigon | - | 47,148 | 0 | 03 Sep, 2025 |
| G Patrick Lynch | President And Ceo | 105,284 | 0 | 29 Aug, 2024 |
| Matthew C Wolsfeld | Cfo And Corporate Secretary | 168,149 | 0 | 16 Jul, 2024 |
| Sunggyu Lee | - | 3,319 | 0 | 21 Aug, 2023 |
| Ramani Narayan | - | 106,763 | 0 | 03 Oct, 2022 |
| Koh Soo Keong | - | 101,095 | 0 | 09 Jul, 2021 |
| Falkenhausen Konstantin Von | - | 18,219 | 0 | 06 May, 2025 |
| Nancy E. Calderon | - | 14,741 | 0 | 03 Sep, 2025 |
| Sarah E. Kemp | - | 16,270 | 0 | 03 Sep, 2025 |
| Cristina Lucia Duarte Pinho | - | 10,510 | 0 | 03 Sep, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 01 Sep, 2025 | Richard Nigon | Common Stock | A | 8,086 | $0.00 | 47,148 | D | A |
| 13 Nov, 2024 | Nancy E. Calderon | Common Stock | A | 5 | $13.29 | 7,960 | D | L |
| 01 Sep, 2025 | Sarah E. Kemp | Common Stock | A | 6,739 | $0.00 | 16,270 | D | A |
| 01 Sep, 2025 | Cristina Lucia Duarte Pinho | Common Stock | A | 6,739 | $0.00 | 10,510 | D | A |
| 01 Sep, 2025 | Cristina Lucia Duarte Pinho | Common Stock | A | 6,739 | $0.00 | 10,510 | D | A |
| 01 Sep, 2025 | Ramani Narayan | Stock Option (right to buy) | A | 16,287 | $0.00 | 16,287 | D | A |
| 01 Sep, 2025 | Matthew C Wolsfeld | Stock Option (right to buy) | A | 32,559 | $0.00 | 32,559 | D | A |
| 13 Nov, 2024 | Nancy E. Calderon | Common Stock | A | 11 | $13.29 | 7,971 | D | L |
| 01 Sep, 2025 | Sunggyu Lee | Stock Option (right to buy) | A | 16,287 | $0.00 | 16,287 | D | A |
| 01 Sep, 2025 | Falkenhausen Konstantin Von | Stock Option (right to buy) | A | 16,287 | $0.00 | 16,287 | D | A |
| 01 Sep, 2025 | Ramani Narayan | Stock Option (right to buy) | A | 16,287 | $0.00 | 16,287 | D | A |
| 01 Sep, 2025 | Matthew C Wolsfeld | Stock Option (right to buy) | A | 32,559 | $0.00 | 32,559 | D | A |
| 01 Sep, 2025 | Falkenhausen Konstantin Von | Stock Option (right to buy) | A | 16,287 | $0.00 | 16,287 | D | A |
| 12 Feb, 2025 | Nancy E. Calderon | Common Stock | A | 6 | $11.26 | 7,978 | D | L |
| 01 Sep, 2025 | G Patrick Lynch | Stock Option (right to buy) | A | 44,051 | $0.00 | 44,051 | D | A |
| 12 Feb, 2025 | Nancy E. Calderon | Common Stock | A | 13 | $11.26 | 7,991 | D | L |
| 14 May, 2025 | Nancy E. Calderon | Common Stock | A | 3 | $7.35 | 7,994 | D | L |
| 14 May, 2025 | Nancy E. Calderon | Common Stock | A | 3 | $7.35 | 7,997 | D | L |
| 13 Aug, 2025 | Nancy E. Calderon | Common Stock | A | 3 | $7.72 | 8,000 | D | L |
| 13 Aug, 2025 | Nancy E. Calderon | Common Stock | A | 3 | $7.72 | 8,002 | D | L |