The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Wolsfeld Matthew C since 2023.
This trader's CIK number is 1258563.
At the time of last reporting, Wolsfeld Matthew C was the CFO and Corporate Secretary of Northern Technologies International Corp. (stock ticker symbol NTIC).
Also see all insider trading activities at Northern Technologies International Corp.
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2026 | NTIC | 0 | $0 | 0 | $0 | 23,758 | $159,178 |
| 2024 | NTIC | 0 | $0 | 0 | $0 | 7,752 | $77,907 |
| 2023 | NTIC | 0 | $0 | 0 | $0 | 8,582 | $63,077 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2026-07-01 | NTIC | Option Ex | 11,879 | 6.70 | 79,589 |
| 2026-07-01 | NTIC | Option Ex | 11,879 | 6.70 | 79,589 |
| 2024-07-15 | NTIC | Option Ex | 7,752 | 10.05 | 77,907 |
| 2023-07-11 | NTIC | Option Ex | 8,582 | 7.35 | 63,077 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Wolsfeld Matthew C (CFO and Corporate Secretary of Northern Technologies International Corp at the time of this reporting) see the Securities and Exchange Commission (SEC) website.