MATTHEW C. WOLSFELD

Insider Reports History

Location
Circle Pines, MN
Signature
/s/ Matthew C. Wolsfeld-Attorney-in-fact
All insider transactions
Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by MATTHEW C. WOLSFELD:

Company Role Class Num Shares Value Price $ Report Date Ownership
NORTHERN TECHNOLOGIES INTERNATIONAL CORP CFO and Corporate Secretary Common Stock 168,256 $1,246,776 $7.41 01 Sep 2025 Direct
NORTHERN TECHNOLOGIES INTERNATIONAL CORP CFO and Corporate Secretary Stock Option (right to buy) 32,559 01 Sep 2025 Direct

Insider Reports Filed by MATTHEW C. WOLSFELD

Symbol Company Period Transactions Value $ Form Type Role Filing Time
NTIC NORTHERN TECHNOLOGIES INTERNATIONAL CORP 01 Sep 2025 1 $0 4 CFO and Corporate Secretary 03 Sep 2025, 19:10
NTIC NORTHERN TECHNOLOGIES INTERNATIONAL CORP 01 Sep 2024 1 $0 4 CFO and Corporate Secretary 04 Sep 2024, 20:20
NTIC NORTHERN TECHNOLOGIES INTERNATIONAL CORP 15 Jul 2024 2 +$77,908 4 CFO and Corporate Secretary 17 Jul 2024, 16:15
NTIC NORTHERN TECHNOLOGIES INTERNATIONAL CORP 01 Sep 2023 1 $0 4 CFO and Corporate Secretary 06 Sep 2023, 17:31
NTIC NORTHERN TECHNOLOGIES INTERNATIONAL CORP 11 Jul 2023 2 +$63,078 4 CFO and Corporate Secretary 12 Jul 2023, 17:17
NTIC NORTHERN TECHNOLOGIES INTERNATIONAL CORP 04 Oct 2022 3 +$2.87 4 CFO and Corporate Secretary 06 Oct 2022, 17:24
NTIC NORTHERN TECHNOLOGIES INTERNATIONAL CORP 01 Sep 2022 1 $0 4 CFO and Corporate Secretary 06 Sep 2022, 18:06
NTIC NORTHERN TECHNOLOGIES INTERNATIONAL CORP 01 Sep 2021 1 $0 4 CFO and Corporate Secretary 02 Sep 2021, 17:40