SEC Insider Transactions from Lee Sunggyu.

Last updated: 2026-03-14 11:20 UTC | Total transactions: 6

Lee Sunggyu has filed 6 insider transactions across 1 company since August 2023.

Most recent transaction: a grant/award of 16287 shares of NORTHERN TECHNOLOGIES INTERNATIONAL CORP ($NTIC) on September 01, 2025.

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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 Lee Sunggyu Director A Stock Option (right to buy) 16287 $0.00 16,287.0000 9,639,676 9999.99% 0.17%
Sept. 1, 2024 NORTHERN TECHNOLOGIES INTERNATIONAL CORP $NTIC Lee Sunggyu Director A Stock Option (right to buy) 9843 $0.00 9,843.0000 9,833,450 9999.99% 0.10%
Sept. 1, 2023 NORTHERN TECHNOLOGIES INTERNATIONAL CORP $NTIC Lee Sunggyu Director A Stock Option (right to buy) 9921 $0.00 9,921.0000 0 9999.99% 0.00%
Aug. 17, 2023 NORTHERN TECHNOLOGIES INTERNATIONAL CORP $NTIC Lee Sunggyu Director M Common Stock 8000 $7.35 8,000.0000 0 9999.99% 0.00%
Aug. 17, 2023 NORTHERN TECHNOLOGIES INTERNATIONAL CORP $NTIC Lee Sunggyu Director F Common Stock 4681 $12.56 3,319.0000 0 58.51% 0.00%
Aug. 17, 2023 NORTHERN TECHNOLOGIES INTERNATIONAL CORP $NTIC Lee Sunggyu Director M Stock Option (right to buy) 8000 $0.00 0.0000 0 100.00% 0.00%