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WOLSFELD MATTHEW C

CFO and Corporate Secretary · 2 insider transactions on file

All transactions

Date	Ticker	Company	Type	Shares	Price	Value	Filing
2026-07-01	NTIC	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	Option exercise	11,879	$6.70	$79,589.30	filing
2026-07-01	NTIC	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	Tax withholding	9,169	$8.68	$79,586.92	filing

Insider transactions from SEC Form 4 filings via EDGAR. Names appear as filed and aren't normalized across issuers.