Key facts
- This page summarizes Sunggyu Lee's Form 4 filing for NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC).
- 1 reported transaction and 1 derivative row are listed below.
- Accepted by SEC: 03 Sep 2025, 16:59.
Sunggyu Lee - 01 Sep 2025 Form 4 Insider Report for NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC)
- Reporting relationship
- Director
- Issuer ticker
- NTIC
- Reported as of
- 01 Sep 2025
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 03 Sep 2025, 16:59:07 UTC
- Prior SEC filing
- 04 Sep 2024
- Next SEC filing
- 03 Sep 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Matthew C. Wolsfeld-Attorney-in-fact
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Sunggyu Lee filed Form 4 for NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC) on 03 Sep 2025.
Change
- Previous filing in this sequence was filed on 04 Sep 2024.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001302082
Primary reporting owner
Lee Sunggyu
- Relationship
- Director
- Address
- C/O NORTHERN TECHNOLOGIES INT'L CORP., 4201 WOODLAND ROAD, PO BOX 69, CIRCLE PINES
- Signature
- /s/ Matthew C. Wolsfeld-Attorney-in-fact
- Signature date
- 03 Sep 2025
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
NTIC
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 3,319
- Date
- 01 Sep 2025
- Ownership
- Direct
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
NTIC
transaction
Derivative
Stock Option (right to buy)
Award
- Transaction value
- $0
- Shares
- +16,287
- Change %
- Price
- $0.000000
- Shares after
- 16,287
- Date
- 01 Sep 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 16,287
- Exercise price
- $7.42
* marks a reported price that did not pass the local price check.