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.
- Shares are not adjusted for stock split.
"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 |
2024-04-23 Purchase |
2024-04-24 4:56 pm |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Kemp Sarah E. Director |
1,275 | $15.7 | $20,018 | 5,760 (Direct) |
View |
2023-08-14 Purchase |
2023-08-14 4:23 pm |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
500 | $13.17 | $6,585 | 3,062 (Direct) |
View |
2023-07-27 Sale |
2023-07-27 5:48 pm |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | NIGON RICHARD Director |
1,847 | $12.17 | $22,478 | 33,600 (Direct) |
View |
2023-04-18 Purchase |
2023-04-19 4:28 pm |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Kemp Sarah E. Director |
2,473 | $12.13 | $30,000 | 4,485 (Direct) |
View |
2023-01-30 Purchase |
2023-01-31 4:59 pm |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
500 | $12.92 | $6,459 | 2,562 (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 |
2024-09-01 Option Award |
2024-09-04 8:27 pm |
2025-09-01 2034-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | von Falkenhausen Konstantin Director |
9,843 | $0 | 26,962 (Direct) |
View |
2024-09-01 Option Award |
2024-09-04 8:20 pm |
N/A 2034-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | WOLSFELD MATTHEW C CFO and Corporate Secretary |
33,156 | $0 | 201,332 (Direct) |
View |
2024-09-01 Option Award |
2024-09-04 8:08 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Pinho Cristina Lucia Duarte Director |
3,771 | $0 | 3,771 (Direct) |
View |
2024-09-01 Option Award |
2024-09-04 7:59 pm |
2025-09-01 2034-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Lee Sunggyu Director |
9,843 | $0 | 13,162 (Direct) |
View |
2024-09-01 Option Award |
2024-09-04 7:59 pm |
2025-09-01 2034-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Narayan Ramani Director |
9,843 | $0 | 116,606 (Direct) |
View |
2024-02-14 Acquisition |
2024-09-04 7:53 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
11 | $13.47 | 6,954 (Direct) |
View |
2024-05-15 Acquisition |
2024-09-04 7:53 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
13 | $11.83 | 6,954 (Direct) |
View |
2024-08-14 Acquisition |
2024-09-04 7:53 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
6 | $11.99 | 6,954 (Direct) |
View |
2023-11-16 Acquisition |
2024-09-04 7:53 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
6 | $12.01 | 6,954 (Direct) |
View |
2024-09-01 Option Award |
2024-09-04 7:53 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
3,771 | $0 | 6,954 (Direct) |
View |
2024-08-14 Acquisition |
2024-09-04 7:53 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
11 | $13.34 | 6,954 (Direct) |
View |
2023-11-16 Acquisition |
2024-09-04 7:53 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
11 | $13.25 | 6,954 (Direct) |
View |
2024-05-15 Acquisition |
2024-09-04 7:53 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
4 | $18.04 | 6,954 (Direct) |
View |
2024-02-14 Acquisition |
2024-09-04 7:53 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
5 | $13.63 | 6,954 (Direct) |
View |
2024-09-01 Option Award |
2024-09-04 7:38 pm |
N/A 2034-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | LYNCH G PATRICK President & CEO 10% Owner |
44,858 | $0 | 1,353,476 (Direct) |
View |
2024-09-01 Option Award |
2024-09-04 7:24 pm |
2025-09-01 2034-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | NIGON RICHARD Director |
11,811 | $0 | 49,746 (Direct) |
View |
2024-09-01 Option Award |
2024-09-04 6:46 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Kemp Sarah E. Director |
3,771 | $0 | 9,531 (Direct) |
View |
2024-08-26 Exercise |
2024-08-29 5:47 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | LYNCH G PATRICK President and CEO 10% Owner |
10,488 | $10.05 | 1,308,618 (Direct) |
View |
2024-08-26 Exercise |
2024-08-29 5:47 pm |
N/A 2024-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | LYNCH G PATRICK President and CEO 10% Owner |
10,488 | $0 | 1,308,618 (Direct) |
View |
2024-08-26 Tax Withholding |
2024-08-29 5:47 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | LYNCH G PATRICK President and CEO 10% Owner |
7,710 | $13.67 | 1,308,618 (Direct) |
View |
2024-08-01 Exercise |
2024-08-02 6:21 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | NIGON RICHARD Director |
12,000 | $10.05 | 37,935 (Direct) |
View |
2024-08-01 Tax Withholding |
2024-08-02 6:21 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | NIGON RICHARD Director |
7,665 | $13.11 | 37,935 (Direct) |
View |
2024-08-01 Exercise |
2024-08-02 6:21 pm |
N/A 2024-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | NIGON RICHARD Director |
12,000 | $0 | 37,935 (Direct) |
View |
2024-07-31 Exercise |
2024-08-01 5:28 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | von Falkenhausen Konstantin Director |
8,000 | $10.05 | 17,119 (Direct) |
View |
2024-07-31 Exercise |
2024-08-01 5:28 pm |
N/A 2024-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | von Falkenhausen Konstantin Director |
8,000 | $0 | 17,119 (Direct) |
View |
2024-07-31 Tax Withholding |
2024-08-01 5:28 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | von Falkenhausen Konstantin Director |
6,081 | $13.22 | 17,119 (Direct) |
View |
2024-07-15 Exercise |
2024-07-17 4:15 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | WOLSFELD MATTHEW C CFO and Corporate Secretary |
7,752 | $10.05 | 168,149 (Direct) |
View |
2024-07-15 Exercise |
2024-07-17 4:15 pm |
N/A 2024-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | WOLSFELD MATTHEW C CFO and Corporate Secretary |
7,752 | $0 | 168,149 (Direct) |
View |
2022-11-16 Acquisition |
2023-09-06 6:18 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
11 | $12.96 | 13,037 (Direct) |
View |
2023-09-01 Option Award |
2023-09-06 6:18 pm |
2024-09-01 2033-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
9,921 | $0 | 13,037 (Direct) |
View |
2023-02-21 Acquisition |
2023-09-06 6:18 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
14 | $13.17 | 13,037 (Direct) |
View |
2023-05-18 Acquisition |
2023-09-06 6:18 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
16 | $11.56 | 13,037 (Direct) |
View |
2023-08-17 Acquisition |
2023-09-06 6:18 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
14 | $13.07 | 13,037 (Direct) |
View |
2023-09-01 Option Award |
2023-09-06 5:55 pm |
2024-09-01 2033-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Kemp Sarah E. Director |
9,921 | $0 | 14,406 (Direct) |
View |
2023-09-01 Option Award |
2023-09-06 5:49 pm |
2024-09-01 2033-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | NIGON RICHARD Director |
11,905 | $0 | 45,505 (Direct) |
View |
2023-09-01 Option Award |
2023-09-06 5:43 pm |
N/A 2033-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | LYNCH G PATRICK President & CEO |
45,381 | $0 | 1,351,221 (Direct) |
View |
2023-09-01 Option Award |
2023-09-06 5:31 pm |
N/A 2033-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | WOLSFELD MATTHEW C CFO and Corporate Secretary |
33,543 | $0 | 193,912 (Direct) |
View |
2023-09-01 Option Award |
2023-09-06 5:21 pm |
2024-09-01 2033-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | von Falkenhausen Konstantin Director |
9,921 | $0 | 25,121 (Direct) |
View |
2023-09-01 Option Award |
2023-09-06 5:14 pm |
2024-09-01 2033-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Narayan Ramani Director |
9,921 | $0 | 116,684 (Direct) |
View |
2023-09-01 Option Award |
2023-09-06 5:08 pm |
2024-09-01 2033-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Lee Sunggyu Director |
9,921 | $0 | 13,240 (Direct) |
View |
2023-09-01 Option Award |
2023-09-06 5:01 pm |
2024-09-01 2033-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Pinho Cristina Lucia Duarte Director |
9,921 | $0 | 9,921 (Direct) |
View |
2023-08-28 Exercise |
2023-08-28 5:48 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | von Falkenhausen Konstantin Director |
8,000 | $7.35 | 23,200 (Direct) |
View |
2023-08-28 Exercise |
2023-08-28 5:48 pm |
N/A 2023-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | von Falkenhausen Konstantin Director |
8,000 | $0 | 23,200 (Direct) |
View |
2023-08-17 Exercise |
2023-08-21 4:07 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Lee Sunggyu Director |
8,000 | $7.35 | 3,319 (Direct) |
View |
2023-08-17 Tax Withholding |
2023-08-21 4:07 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Lee Sunggyu Director |
4,681 | $12.56 | 3,319 (Direct) |
View |
2023-08-17 Exercise |
2023-08-21 4:07 pm |
N/A 2023-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Lee Sunggyu Director |
8,000 | $0 | 3,319 (Direct) |
View |
2023-08-08 Exercise |
2023-08-10 4:44 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | LYNCH G PATRICK President and CEO 10% Owner |
11,610 | $7.35 | 1,305,840 (Direct) |
View |
2023-08-08 Tax Withholding |
2023-08-10 4:44 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | LYNCH G PATRICK President and CEO 10% Owner |
6,387 | $13.36 | 1,305,840 (Direct) |
View |
2023-08-08 Exercise |
2023-08-10 4:44 pm |
N/A 2023-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | LYNCH G PATRICK President and CEO 10% Owner |
11,610 | $0 | 1,305,840 (Direct) |
View |
2023-07-26 Exercise |
2023-07-27 5:48 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | NIGON RICHARD Director |
12,000 | $7.35 | 33,600 (Direct) |
View |
2023-07-26 Tax Withholding |
2023-07-27 5:48 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | NIGON RICHARD Director |
7,153 | $12.33 | 33,600 (Direct) |
View |
2023-07-26 Exercise |
2023-07-27 5:48 pm |
N/A 2023-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | NIGON RICHARD Director |
12,000 | $0 | 33,600 (Direct) |
View |
2023-07-11 Exercise |
2023-07-12 5:17 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | WOLSFELD MATTHEW C CFO and Corporate Secretary |
8,582 | $7.35 | 160,338 (Direct) |
View |
2023-07-11 Exercise |
2023-07-12 5:17 pm |
N/A 2023-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | WOLSFELD MATTHEW C CFO and Corporate Secretary |
8,582 | $0 | 160,338 (Direct) |
View |
2023-01-20 Option Award |
2023-01-23 4:19 pm |
N/A 2033-01-19 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Pinho Cristina Lucia Duarte Director |
5,511 | $0 | 5,511 (Direct) |
View |
2022-10-14 Exercise |
2022-10-17 4:52 pm |
N/A 2022-11-16 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | von Falkenhausen Konstantin Director |
6,000 | $0 | 7,200 (Direct) |
View |
2022-10-14 Exercise |
2022-10-17 4:52 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | von Falkenhausen Konstantin Director |
6,000 | $5.125 | 7,200 (Direct) |
View |
2022-10-04 Tax Withholding |
2022-10-06 5:35 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | LYNCH G PATRICK President and CEO 10% Owner |
13,645 | $13.83 | 1,300,617 (Direct) |
View |
2022-10-04 Exercise |
2022-10-06 5:35 pm |
N/A 2022-11-16 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | LYNCH G PATRICK President and CEO 10% Owner |
36,824 | $0 | 1,300,617 (Direct) |
View |
2022-10-04 Exercise |
2022-10-06 5:35 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | LYNCH G PATRICK President and CEO 10% Owner |
36,824 | $5.125 | 1,300,617 (Direct) |
View |
2022-10-04 Tax Withholding |
2022-10-06 5:24 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | WOLSFELD MATTHEW C CFO and Corporate Secretary |
10,086 | $13.83 | 151,727 (Direct) |
View |
2022-10-04 Exercise |
2022-10-06 5:24 pm |
N/A 2022-11-16 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | WOLSFELD MATTHEW C CFO and Corporate Secretary |
27,218 | $0 | 151,727 (Direct) |
View |
2022-10-04 Exercise |
2022-10-06 5:24 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | WOLSFELD MATTHEW C CFO and Corporate Secretary |
27,218 | $5.125 | 151,727 (Direct) |
View |
2022-09-29 Exercise |
2022-10-03 5:34 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Narayan Ramani Director |
8,000 | $6.7 | 106,763 (Direct) |
View |
2022-09-29 Exercise |
2022-10-03 5:34 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Narayan Ramani Director |
11,737 | $10.8 | 106,763 (Direct) |
View |
2022-09-29 Exercise |
2022-10-03 5:34 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Narayan Ramani Director |
16,026 | $8.24 | 106,763 (Direct) |
View |
2022-09-29 Exercise |
2022-10-03 5:34 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Narayan Ramani Director |
8,000 | $9.175 | 106,763 (Direct) |
View |
2022-09-29 Exercise |
2022-10-03 5:34 pm |
N/A 2026-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Narayan Ramani Director |
43,763 | $0 | 106,763 (Direct) |
View |
2022-09-01 Option Award |
2022-09-14 4:53 pm |
2023-09-01 2032-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Lee Sunggyu Director |
10,309 | $0 | 10,309 (Direct) |
View |
2022-09-01 Option Award |
2022-09-06 9:28 pm |
2023-09-01 2032-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
10,309 | $0 | 12,371 (Direct) |
View |
2021-11-18 Acquisition |
2022-09-06 9:28 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
9 | $16.39 | 12,371 (Direct) |
View |
2022-02-17 Acquisition |
2022-09-06 9:28 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
11 | $13.32 | 12,371 (Direct) |
View |
2022-05-19 Acquisition |
2022-09-06 9:28 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
14 | $10.02 | 12,371 (Direct) |
View |
2022-08-18 Acquisition |
2022-09-06 9:28 pm |
N/A N/A |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | Calderon Nancy E. Director |
13 | $11.39 | 12,371 (Direct) |
View |
2022-09-01 Option Award |
2022-09-06 6:15 pm |
N/A 2032-08-31 |
NORTHERN TECHNOLOGIES INTERNATIONAL CORP | NTIC | LYNCH G PATRICK President and CEO 10% Owner |
47,517 | $0 | 1,324,955 (Direct) |
View |