WOLSFELD MATTHEW C has filed 7 insider transactions across 1 company since July 2023.
Most recent transaction: a grant/award of 32559 shares of NORTHERN TECHNOLOGIES INTERNATIONAL CORP ($NTIC) on September 01, 2025.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sept. 1, 2025 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | $NTIC | WOLSFELD MATTHEW C | CFO and Corporate Secretary | A | Stock Option (right to buy) | 32559 | $0.00 | 32,559.0000 | 9,639,676 | 9999.99% | 0.34% |
| Sept. 1, 2024 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | $NTIC | WOLSFELD MATTHEW C | CFO and Corporate Secretary | A | Stock Option (right to buy) | 33156 | $0.00 | 33,156.0000 | 9,833,450 | 9999.99% | 0.34% |
| July 15, 2024 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | $NTIC | WOLSFELD MATTHEW C | CFO and Corporate Secretary | M | Common Stock | 7752 | $10.05 | 168,149.0000 | 0 | 4.83% | 0.00% |
| July 15, 2024 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | $NTIC | WOLSFELD MATTHEW C | CFO and Corporate Secretary | M | Stock Option (right to buy) | 7752 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Sept. 1, 2023 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | $NTIC | WOLSFELD MATTHEW C | CFO and Corporate Secretary | A | Stock Option (right to buy) | 33543 | $0.00 | 33,543.0000 | 0 | 9999.99% | 0.00% |
| July 11, 2023 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | $NTIC | WOLSFELD MATTHEW C | CFO and Corporate Secretary | M | Common Stock | 8582 | $7.35 | 160,338.0000 | 0 | 5.66% | 0.00% |
| July 11, 2023 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP | $NTIC | WOLSFELD MATTHEW C | CFO and Corporate Secretary | M | Stock Option (right to buy) | 8582 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |