SEC Form 4 · accession 0001258563-26-000002
NORTHERN TECHNOLOGIES INTERNATIONAL CORP · NTIC
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Matthew C Wolsfeld
Officer — CFO and Corporate Secretary
Period of report
Sep 1, 2026
Accepted (ET)
Sep 3, 2026 · 9:58 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0000875582
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | holding | — | — | — | 170,966 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock Option (right to buy)F1 | $8.08 | Sep 1, 2026 | A | 29,755 | A | — | Aug 31, 2036 | Common Stock | 29,755 | 29,755 | D |
Explanation of responses
- F1This option vests with respect to 9,919 shares on September 1, 2027, and with respect to 9,918 shares on each of September 1, 2028 and September 1, 2029.