Key facts
- This page summarizes Richard Nigon's Form 4 filing for NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC).
- 3 reported transactions and 1 derivative row are listed below.
- Accepted by SEC: 28 Jul 2025, 17:26.
Richard Nigon - 24 Jul 2025 Form 4 Insider Report for NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC)
- Reporting relationship
- Director
- Issuer ticker
- NTIC
- Reported as of
- 24 Jul 2025
- Net transaction value
- +$1.4
- SEC form
- 4
- Accepted by SEC
- 28 Jul 2025, 17:26:36 UTC
- Prior SEC filing
- 21 May 2025
- Next SEC filing
- 03 Sep 2025
- 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
Richard Nigon filed Form 4 for NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC) on 28 Jul 2025.
Change
- Previous filing in this sequence was filed on 21 May 2025.
- Current net transaction value: +$1.4.
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 0001213869
Primary reporting owner
NIGON RICHARD
- 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
- 28 Jul 2025
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
NTIC
transaction
Common Stock
Options Exercise
- Transaction value
- $89,160
- Shares
- +12,000
- Change %
- +32%
- Price
- $7.43
- Shares after
- 49,935
- Date
- 24 Jul 2025
- Ownership
- Direct
NTIC
transaction
Common Stock
Tax liability
- Transaction value
- $89,159
- Shares
- -10,873
- Change %
- -22%
- Price
- $8.20
- Shares after
- 39,062
- Date
- 24 Jul 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)
Options Exercise
- Transaction value
- $0
- Shares
- -12,000
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 24 Jul 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 12,000
- Exercise price
- $7.43
- Footnotes
- F1
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 1 footnote
Footnote F1
This option has fully vested.