| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| LYNCH G PATRICK | President and CEO, Director, 10%+ Owner | C/O NORTHERN TECHNOLOGIES INT'L CORP., 4201 WOODLAND ROAD, PO BOX 69, CIRCLE PINES | /s/ Matthew C. Wolsfeld-Attorney-in-fact | 2025-09-03 | 0001258554 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | NTIC | Common Stock | 105K | Sep 1, 2025 | Direct | ||||||
| holding | NTIC | Common Stock | 1.2M | Sep 1, 2025 | (1) | F1 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NTIC | Stock Option (right to buy) | Award | $0 | +44.1K | $0.00 | 44.1K | Sep 1, 2025 | Common Stock | 44.1K | $7.42 | Direct | F2 |
| Id | Content |
|---|---|
| F1 | These shares are held directly by Inter Alia Holding Company of which G. Patrick Lynch is an officer and stockholder. Mr. G. Patrick Lynch disclaims beneficial ownership of the shares held by Inter Alia Holding Company, except to the extent of his pecuniary interest therein. |
| F2 | This option vests with respect to 14,684 shares on each of September 1, 2026 and September 1, 2027 and with respect to 14,683 shares on September 1, 2028. |