Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
2022-01-12 Purchase | 2022-01-13 4:02 pm | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Kemp Sarah E. Director | 2,012 | $14.91 | $30,005 | 2,012 (Direct) | View |
2021-01-25 Purchase | 2021-01-25 6:11 pm | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director | 1,000 | $14.78 | $14,776 | 2,000 (Direct) | View |
2020-07-23 Purchase | 2020-07-24 08:07 am | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director | 1,000 | $8.6 | $8,600 | 1,000 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
2022-04-22 Exercise | 2022-04-25 4:59 pm | N/A 2025-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Narayan Ramani Director | 8,000 | $0 | 63,000 (Direct) | View |
2022-04-22 Exercise | 2022-04-25 4:59 pm | N/A N/A | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Narayan Ramani Director | 8,000 | $7.425 | 63,000 (Direct) | View |
2021-11-12 Exercise | 2021-11-12 5:59 pm | N/A N/A | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Narayan Ramani Director | 8,000 | $10.05 | 55,000 (Direct) | View |
2021-11-12 Exercise | 2021-11-12 5:59 pm | N/A 2023-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Narayan Ramani Director | 16,000 | $0 | 55,000 (Direct) | View |
2021-11-12 Exercise | 2021-11-12 5:59 pm | N/A N/A | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Narayan Ramani Director | 8,000 | $7.35 | 55,000 (Direct) | View |
2021-09-01 Option Award | 2021-09-02 5:52 pm | N/A 2031-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | LYNCH G PATRICK CEO 10% Owner | 32,540 | $0 | 1,309,978 (Direct) | View |
2021-09-01 Option Award | 2021-09-02 5:40 pm | N/A 2031-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | WOLSFELD MATTHEW C CFO | 24,051 | $0 | 158,586 (Direct) | View |
2021-09-01 Option Award | 2021-09-02 5:30 pm | 2022-09-01 2031-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Kemp Sarah E. Director | 6,859 | $0 | 6,859 (Direct) | View |
2021-09-01 Option Award | 2021-09-02 5:25 pm | 2022-09-01 2031-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director | 6,859 | $0 | 8,859 (Direct) | View |
2021-09-01 Option Award | 2021-09-02 5:19 pm | 2022-09-01 2031-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | NIGON RICHARD Director | 8,230 | $0 | 38,830 (Direct) | View |
2021-09-01 Option Award | 2021-09-02 5:13 pm | 2022-09-01 2031-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Narayan Ramani Director | 6,859 | $0 | 45,859 (Direct) | View |
2021-09-01 Option Award | 2021-09-02 5:04 pm | 2022-09-01 2031-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | von Falkenhausen Konstantin Director | 6,859 | $0 | 8,059 (Direct) | View |
2021-07-07 Exercise | 2021-07-09 4:30 pm | N/A N/A | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Keong Koh Soo Director | 8,000 | $9.18 | 101,095 (Direct) | View |
2021-07-07 Exercise | 2021-07-09 4:30 pm | N/A N/A | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Keong Koh Soo Director | 11,737 | $10.8 | 101,095 (Direct) | View |
2021-07-07 Exercise | 2021-07-09 4:30 pm | N/A N/A | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Keong Koh Soo Director | 8,000 | $6.7 | 101,095 (Direct) | View |
2021-07-07 Exercise | 2021-07-09 4:30 pm | N/A N/A | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Keong Koh Soo Director | 8,000 | $10.05 | 101,095 (Direct) | View |
2021-07-07 Exercise | 2021-07-09 4:30 pm | N/A 2023-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Keong Koh Soo Director | 67,763 | $0 | 101,095 (Direct) | View |
2021-07-07 Exercise | 2021-07-09 4:30 pm | N/A N/A | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Keong Koh Soo Director | 8,000 | $7.43 | 101,095 (Direct) | View |
2021-07-07 Exercise | 2021-07-09 4:30 pm | N/A N/A | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Keong Koh Soo Director | 8,000 | $7.35 | 101,095 (Direct) | View |
2021-07-07 Exercise | 2021-07-09 4:30 pm | N/A N/A | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Keong Koh Soo Director | 16,026 | $8.24 | 101,095 (Direct) | View |
2020-09-01 Option Award | 2020-09-03 4:34 pm | N/A 2030-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | LYNCH G PATRICK CEO 10% Owner | 74,742 | $0 | 1,352,180 (Direct) | View |
2020-09-01 Option Award | 2020-09-03 4:23 pm | N/A 2030-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | WOLSFELD MATTHEW C CFO | 55,244 | $0 | 189,711 (Direct) | View |
2020-09-01 Option Award | 2020-09-02 6:05 pm | 2021-09-01 2030-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | NIGON RICHARD Director | 19,231 | $0 | 49,831 (Direct) | View |
2020-09-01 Option Award | 2020-09-02 5:54 pm | 2021-09-01 2030-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Kemp Sarah E. Director | 16,026 | $0 | 16,026 (Direct) | View |
2020-09-01 Option Award | 2020-09-02 5:49 pm | 2021-09-01 2030-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director | 16,026 | $0 | 17,026 (Direct) | View |
2020-09-01 Option Award | 2020-09-02 5:40 pm | 2021-09-01 2030-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Narayan Ramani Director | 16,026 | $0 | 55,026 (Direct) | View |
2020-09-01 Option Award | 2020-09-02 5:29 pm | 2021-09-01 2030-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | von Falkenhausen Konstantin Director | 16,026 | $0 | 17,226 (Direct) | View |
2020-09-01 Option Award | 2020-09-02 5:22 pm | 2021-09-01 2030-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Keong Koh Soo Director | 16,026 | $0 | 49,358 (Direct) | View |
2019-10-22 Option Award | 2019-10-24 4:28 pm | 2020-10-22 2029-10-22 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director | 8,366 | $0 | 8,366 (Direct) | View |
2019-10-22 Option Award | 2019-10-24 4:21 pm | 2020-10-22 2029-10-22 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Kemp Sarah E. Director | 8,366 | $0 | 8,366 (Direct) | View |
2019-09-01 Option Award | 2019-09-04 6:10 pm | 2020-09-01 2029-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | LYNCH G PATRICK CEO 10% Owner | 58,651 | $0 | 1,336,089 (Direct) | View |
2019-09-01 Option Award | 2019-09-04 5:55 pm | 2020-09-01 2029-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | WOLSFELD MATTHEW C CFO | 43,351 | $0 | 177,745 (Direct) | View |
2019-09-01 Option Award | 2019-09-04 5:44 pm | 2020-09-01 2029-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | NIGON RICHARD Director | 14,085 | $0 | 44,685 (Direct) | View |
2019-09-01 Option Award | 2019-09-04 5:34 pm | 2020-09-01 2029-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Narayan Ramani Director | 11,737 | $0 | 50,737 (Direct) | View |
2019-09-01 Option Award | 2019-09-04 5:21 pm | 2020-09-01 2029-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | von Falkenhausen Konstantin Director | 11,737 | $0 | 12,937 (Direct) | View |
2019-09-01 Option Award | 2019-09-04 5:02 pm | 2020-09-01 2029-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Keong Koh Soo Director | 11,737 | $0 | 45,069 (Direct) | View |
2018-09-01 Option Award | 2018-09-05 5:32 pm | 2019-09-01 2028-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | WOLSFELD MATTHEW C CFO | 10,198 | $0 | 77,369 (Direct) | View |
2018-09-01 Option Award | 2018-09-05 5:23 pm | 2019-09-01 2028-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | LYNCH G PATRICK CEO 10% Owner | 13,798 | $0 | 652,518 (Direct) | View |
2018-09-01 Option Award | 2018-09-05 5:12 pm | 2019-09-01 2028-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Colwell Barbara D. Director | 2,773 | $0 | 4,273 (Direct) | View |
2018-09-01 Option Award | 2018-09-05 5:05 pm | 2019-09-01 2028-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | von Falkenhausen Konstantin Director | 2,773 | $0 | 3,373 (Direct) | View |
2018-09-01 Option Award | 2018-09-05 4:56 pm | 2019-09-01 2028-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Narayan Ramani Director | 2,773 | $0 | 22,273 (Direct) | View |
2018-09-01 Option Award | 2018-09-05 4:47 pm | 2019-09-01 2028-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Keong Koh Soo Director | 2,773 | $0 | 19,439 (Direct) | View |
2018-09-01 Option Award | 2018-09-05 4:35 pm | 2019-09-01 2028-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | NIGON RICHARD Director | 3,328 | $0 | 18,628 (Direct) | View |
2017-09-07 Exercise | 2017-09-08 5:33 pm | N/A 2022-11-15 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | NIGON RICHARD Director | 1,500 | $10.25 | 15,300 (Direct) | View |
2017-09-01 Option Award | 2017-09-05 5:49 pm | N/A 2027-08-31 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | WOLSFELD MATTHEW C CFO | 4,325 | $0 | 71,425 (Direct) | View |