Matthew C. Wolsfeld

Insider Reports History

Location
4201 Woodland Road, 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:

Stock Role Class Num Shares Value Price $ Report Date Ownership
NORTHERN TECHNOLOGIES INTERNATIONAL CORP CFO and Corporate Secretary Common Stock 168K $1.25M $7.41 Sep 1, 2025 Direct
NORTHERN TECHNOLOGIES INTERNATIONAL CORP CFO and Corporate Secretary Stock Option (right to buy) 32.6K Sep 1, 2025 Direct

Insider Reports Filed by Matthew C. Wolsfeld

Symbol Company Period Transactions Value $ Form Type Date Filed Role
NTIC NORTHERN TECHNOLOGIES INTERNATIONAL CORP Sep 1, 2025 1 $0 4 Sep 3, 2025 CFO and Corporate Secretary
NTIC NORTHERN TECHNOLOGIES INTERNATIONAL CORP Sep 1, 2024 1 $0 4 Sep 4, 2024 CFO and Corporate Secretary
NTIC NORTHERN TECHNOLOGIES INTERNATIONAL CORP Jul 15, 2024 2 $77.9K 4 Jul 17, 2024 CFO and Corporate Secretary
NTIC NORTHERN TECHNOLOGIES INTERNATIONAL CORP Sep 1, 2023 1 $0 4 Sep 6, 2023 CFO and Corporate Secretary
NTIC NORTHERN TECHNOLOGIES INTERNATIONAL CORP Jul 11, 2023 2 $63.1K 4 Jul 12, 2023 CFO and Corporate Secretary
NTIC NORTHERN TECHNOLOGIES INTERNATIONAL CORP Oct 4, 2022 3 $2.87 4 Oct 6, 2022 CFO and Corporate Secretary
NTIC NORTHERN TECHNOLOGIES INTERNATIONAL CORP Sep 1, 2022 1 $0 4 Sep 6, 2022 CFO and Corporate Secretary
NTIC NORTHERN TECHNOLOGIES INTERNATIONAL CORP Sep 1, 2021 1 $0 4 Sep 2, 2021 CFO and Corporate Secretary