SEC Form 3 · accession 0002153488-26-000001
NORTHERN TECHNOLOGIES INTERNATIONAL CORP · NTIC
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Brian James Haglund
Officer — Chief Operating Officer
Period of report
Sep 4, 2026
Accepted (ET)
Sep 9, 2026 · 9:05 pm EDT
Rule 10b5-1 plan
unknown — predates the checkbox
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 | — | — | — | 1,589 | 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 | $8.24 | holding | — | — | — | — | Aug 31, 2030 | Common Stock | 21,370 | — | D |
| Stock Option (right to buy)F1 | $16.97 | holding | — | — | — | — | Aug 31, 2031 | Common Stock | 7,753 | — | D |
| Stock Option (right to buy)F1 | $11.38 | holding | — | — | — | — | Aug 31, 2032 | Common Stock | 17,684 | — | D |
| Stock Option (right to buy)F1 | $13.25 | holding | — | — | — | — | Aug 31, 2033 | Common Stock | 18,383 | — | D |
| Stock Option (right to buy)F2 | $13.26 | holding | — | — | — | — | Aug 31, 2034 | Common Stock | 19,988 | — | D |
| Stock Option (right to buy)F3 | $7.42 | holding | — | — | — | — | Aug 31, 2035 | Common Stock | 21,027 | — | D |
| Stock Option (right to buy)F4 | $8.08 | holding | — | — | — | — | Aug 31, 2036 | Common Stock | 21,137 | — | D |
Explanation of responses
- F1This option has fully vested.
- F2This option has vested with respect to 13,324 shares and will vest with respect to the remaining shares on September 1, 2027.
- F3This option has vested with respect to 7,009 shares and will vest with respect to 7,009 shares on each of September 1, 2027 and September 1, 2028.
- F4This option vests with respect to 7,045 shares on September 1, 2027 and with respect to 7,046 shares on each of September 1, 2028 and September 1, 2029.