SEC Form 4 · accession 0001562252-26-000001
NORTHERN TECHNOLOGIES INTERNATIONAL CORP · NTIC
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Konstantin von Falkenhausen
Director
Period of report
Sep 1, 2026
Accepted (ET)
Sep 3, 2026 · 4:10 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 | — | — | — | 18,219 | 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) | $8.08 | Sep 1, 2026 | A | 15,044 | A | Sep 1, 2027 | Aug 31, 2036 | Common Stock | 15,044 | 15,044 | D |