NTIC insider transaction filings
NORTHERN TECHNOLOGIES INTERNATIONAL CORP — 15 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-07-31. Screen NTIC transaction legs live →
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-07-31 | 4 | LYNCH G PATRICK — President and CEO, Director, 10% owner | Option exercise (M): 16,072 @ $6.70 · Sale (S): 2 @ $8.10 · Sale (S): 16,070 @ $8.00 · Option exercise (M): 16,072 (derivative) @ $0 | EDGAR |
| 2026-07-21 | 4 | NIGON RICHARD — Director | Option exercise (M): 12,000 @ $6.70 · Sale (S): 12,000 @ $8.00 · Option exercise (M): 12,000 (derivative) @ $0 | EDGAR |
| 2026-07-02 | 4 | WOLSFELD MATTHEW C — CFO and Corporate Secretary | Option exercise (M): 11,879 @ $6.70 · Tax withholding (F): 9,169 @ $8.68 · Option exercise (M): 11,879 (derivative) @ $0 | EDGAR |
| 2025-09-03 | 4 | Pinho Cristina Lucia Duarte — Director | Grant/award (A): 6,739 @ $0 | EDGAR |
| 2025-09-03 | 4 | Kemp Sarah E. — Director | Grant/award (A): 6,739 @ $0 | EDGAR |
| 2025-09-03 | 4 | Calderon Nancy E. — Director | Code (L): 5.42 @ $13.29 · Code (L): 11.38 @ $13.29 · Code (L): 6.43 @ $11.26 · Code (L): 13.50 @ $11.26 · Code (L): 2.78 @ $7.35 · Code (L): 2.97 @ $7.35 · +3 more | EDGAR |
| 2025-09-03 | 4 | von Falkenhausen Konstantin — Director | Grant/award (A): 16,287 (derivative) @ $0 | EDGAR |
| 2025-09-03 | 4 | Narayan Ramani — Director | Grant/award (A): 16,287 (derivative) @ $0 | EDGAR |
| 2025-09-03 | 4 | Lee Sunggyu — Director | Grant/award (A): 16,287 (derivative) @ $0 | EDGAR |
| 2025-09-03 | 4 | WOLSFELD MATTHEW C — CFO and Corporate Secretary | Grant/award (A): 32,559 (derivative) @ $0 | EDGAR |
| 2025-09-03 | 4 | LYNCH G PATRICK — President and CEO, Director, 10% owner | Grant/award (A): 44,051 (derivative) @ $0 | EDGAR |
| 2025-09-03 | 4 | NIGON RICHARD — Director | Grant/award (A): 8,086 @ $0 | EDGAR |
| 2025-07-28 | 4 | NIGON RICHARD — Director | Option exercise (M): 12,000 @ $7.43 · Tax withholding (F): 10,873 @ $8.20 · Option exercise (M): 12,000 (derivative) @ $0 | EDGAR |
| 2025-05-06 | 4 | von Falkenhausen Konstantin — Director | Purchase (P): 1,100 @ $7.23 | EDGAR |
| 2025-04-28 | 4 | Calderon Nancy E. — Director | Purchase (P): 1,000 @ $7.45 | EDGAR |
Recent 8-K events — NORTHERN TECHNOLOGIES INTERNATIONAL CORP
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-07-09 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-04-24 | 8-K | 8.01 — Other Events | EDGAR |
| 2026-04-09 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-01-16 | 8-K | 5.07 — Submission of Matters to a Vote of Security Holders | EDGAR |
| 2026-01-08 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-12-19 | 8-K | 1.01 — Entry into a Material Definitive Agreement 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-11-18 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-07-11 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-04-10 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
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