Company · CIK 0000875582 · SIC 3470 — Coating, Engraving & Allied Services · Nasdaq
NORTHERN TECHNOLOGIES INTERNATIONAL CORP · NTIC
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 4, 2026 AForm 4 → | Sep 9, 9:36 pm EDT | Gautam RamdasPresident and CEO | 43,805 | — | — | 118,932 | — | |
| Sep 1, 2026 AForm 4 → | Sep 3, 4:26 pm EDT | Richard NigonDirector | 7,426 | — | — | 54,574 | — | |
| Sep 1, 2026 AForm 4 → | Sep 3, 4:23 pm EDT | Sunggyu LeeDirector | 6,188 | — | — | 9,507 | — | |
| Sep 1, 2026 AForm 4 → | Sep 3, 4:19 pm EDT | Sarah E. KempDirector | 6,188 | — | — | 22,458 | — | |
| Sep 1, 2026 AForm 4 → | Sep 3, 4:14 pm EDT | Cristina Lucia Duarte PinhoDirector | 6,188 | — | — | 16,698 | — | |
| Jul 29, 2026 SForm 4 → | Jul 31, 4:34 pm EDT | G Patrick LynchPresident and CEO, Director, 10% Owner | 16,072 | $8.00 | $128,523 | 105,284 | −13.2% | |
| Jul 29, 2026 MForm 4 → | Jul 31, 4:34 pm EDT | G Patrick LynchPresident and CEO, Director, 10% Owner | 16,072 | $6.70 | $107,682 | 121,356 | — | |
| Jul 20, 2026 SForm 4 → | Jul 21, 4:28 pm EDT | Richard NigonDirector | 12,000 | $8.00 | $96,048 | 47,148 | −20.3% | |
| Jul 20, 2026 MForm 4 → | Jul 21, 4:28 pm EDT | Richard NigonDirector | 12,000 | $6.70 | $80,400 | 59,148 | — | |
| Jul 1, 2026 FMForm 4 → | Jul 2, 4:44 pm EDT | Matthew C WolsfeldCFO and Corporate Secretary | 21,048 | $7.56 | $159,176 | 170,966 | — | |
| Nov 12, 2025 ALForm 4 → | Sep 3, 2026, 4:01 pm EDT | Nancy E. CalderonDirector | 6,198 | $8.38 | $85 | 20,940 | — | late |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 4, 2026 AForm 4 → | Sep 9, 9:36 pm EDT | Gautam RamdasPresident and CEO | 15,278 | — | — | 15,278 | — | |
| Sep 1, 2026 AForm 4 → | Sep 4, 7:54 am EDT | G Patrick LynchPresident and CEO, Director, 10% Owner | 40,257 | — | — | 40,257 | — | late |
| Sep 1, 2026 AForm 4 → | Sep 3, 9:58 pm EDT | Matthew C WolsfeldCFO and Corporate Secretary | 29,755 | — | — | 29,755 | — | |
| Sep 1, 2026 AForm 4 → | Sep 3, 4:10 pm EDT | Konstantin von FalkenhausenDirector | 15,044 | — | — | 15,044 | — | |
| Sep 1, 2026 AForm 4 → | Sep 3, 4:07 pm EDT | Ramani NarayanDirector | 15,044 | — | — | 15,044 | — | |
| Jul 29, 2026 MForm 4 → | Jul 31, 4:34 pm EDT | G Patrick LynchPresident and CEO, Director, 10% Owner | 16,072 | — | — | 0 | — | |
| Jul 20, 2026 MForm 4 → | Jul 21, 4:28 pm EDT | Richard NigonDirector | 12,000 | — | — | 0 | — | |
| Jul 1, 2026 MForm 4 → | Jul 2, 4:44 pm EDT | Matthew C WolsfeldCFO and Corporate Secretary | 11,879 | — | — | 0 | — |