TapewireFind a company

person · Reporting owner

Lee Sunggyu

Disclosed activity across 1 company

Tapewire entity
1771
SEC CIK
0001302082

Export transaction history ↓

Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
NORTHERN TECHNOLOGIES INTERNATIONAL CORPNTIC · Entity 1510DirectorSeptember 01, 2026September 03, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

NORTHERN TECHNOLOGIES INTERNATIONAL CORP

Report date September 01, 2026 · Filed September 03, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect9,507 Reported balance After 2026-09-01 transaction · row 1 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 1 · 2026-09-01 · Grant · Acquired 6,188 · Balance 9,507

F1: These shares will vest on September 1, 2027 and be issued upon settlement of a restricted stock unit award granted under the Northern Technologies International Corporation 2024 Stock Incentive Plan, conditioned upon the Reporting Person remaining a director of Northern Technologies International Corporation through the vesting date.

F2: Includes 6,188 shares issuable upon vesting and settlement of restricted stock units.

Filing footnotes · ownership attribution and instrument terms

F1: These shares will vest on September 1, 2027 and be issued upon settlement of a restricted stock unit award granted under the Northern Technologies International Corporation 2024 Stock Incentive Plan, conditioned upon the Reporting Person remaining a director of Northern Technologies International Corporation through the vesting date.

F2: Includes 6,188 shares issuable upon vesting and settlement of restricted stock units.

Transaction history

JSON API
Reset

Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
September 01, 2026 Filed Sep 3, 2026 20:23 UTC NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 GrantCommon Stock 6,188 $0.00 $0.00
Disclosure

SEC source: 0001302082-26-000001 · primary_doc.xml · nonDerivative · entry 1

Lee Sunggyu · CIK 0001302082 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,507

F1 · shares: These shares will vest on September 1, 2027 and be issued upon settlement of a restricted stock unit award granted under the Northern Technologies International Corporation 2024 Stock Incentive Plan, conditioned upon the Reporting Person remaining a director of Northern Technologies International Corporation through the vesting date.

F2 · balance_after: Includes 6,188 shares issuable upon vesting and settlement of restricted stock units.

Read SEC document
September 01, 2025 Filed Sep 3, 2025 20:59 UTC NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 GrantStock Option (right to buy) · Derivative 16,287 $0.00 Strike: $7.42 $0.00
Disclosure

SEC source: 0001302082-25-000003 · primary_doc.xml · derivative · entry 2

Lee Sunggyu · CIK 0001302082 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,287

Underlying: Common Stock · 16,287 shares

Expires 2035-08-31

Read SEC document
September 01, 2024 Filed Sep 4, 2024 23:59 UTC NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 GrantStock Option (right to buy) · Derivative 9,843 $0.00 Strike: $13.26 $0.00
Disclosure

SEC source: 0001526513-24-000011 · primary_doc.xml · derivative · entry 2

Lee Sunggyu · CIK 0001302082 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,843

Underlying: Common Stock · 9,843 shares

Expires 2034-08-31

Read SEC document
September 01, 2023 Filed Sep 6, 2023 21:08 UTC NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 GrantStock Option (right to buy) · Derivative 9,921 $0.00 Strike: $13.25 $0.00
Disclosure

SEC source: 0001526513-23-000005 · primary_doc.xml · derivative · entry 2

Lee Sunggyu · CIK 0001302082 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,921

Underlying: Common Stock · 9,921 shares

Expires 2033-08-31

Read SEC document
August 17, 2023 Filed Aug 21, 2023 20:07 UTC NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 Exercise / conversionStock Option (right to buy) · Derivative 8,000 $0.00 Strike: $7.35 $0.00
Disclosure

SEC source: 0001235802-23-000099 · primary_doc.xml · derivative · entry 3

Lee Sunggyu · CIK 0001302082 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 8,000 shares

Expires 2023-08-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: This option has fully vested.

Read SEC document
August 17, 2023 Filed Aug 21, 2023 20:07 UTC NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 Tax withholdingCommon Stock 4,681 $12.56 $58,793.36
Disclosure

SEC source: 0001235802-23-000099 · primary_doc.xml · nonDerivative · entry 2

Lee Sunggyu · CIK 0001302082 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,319

Read SEC document
August 17, 2023 Filed Aug 21, 2023 20:07 UTC NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 Exercise / conversionCommon Stock 8,000 $7.35 $58,800.00
Disclosure

SEC source: 0001235802-23-000099 · primary_doc.xml · nonDerivative · entry 1

Lee Sunggyu · CIK 0001302082 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
September 01, 2022 Filed Sep 14, 2022 20:53 UTC NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 GrantStock Option (right to buy) · Derivative 10,309 $0.00 Strike: $11.38 $0.00
Disclosure

SEC source: 0001526513-22-000008 · primary_doc.xml · derivative · entry 2

Lee Sunggyu · CIK 0001302082 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,309

Underlying: Common Stock · 10,309 shares

Expires 2032-08-31

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.