NORTHERN TECHNOLOGIES INTERNATIONAL CORP — All Filings
750 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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10-K
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10KSB
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10KSB40
10QSB
144
25
3
4
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424B5
5
8-A12B
8-A12B/A
8-K
ARS
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SC 13D
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SC 13G
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SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 8-K | FORM 8-K | 0001171843-26-000314 | Jan 16, 2026 | — |
| 10-Q | FORM 10-Q | 0001171843-26-000136 | Jan 8, 2026 | Nov 30, 2025 |
| 8-K | FORM 8-K | 0001171843-26-000135 | Jan 8, 2026 | — |
| 8-K | FORM 8-K | 0001171843-25-008020 | Dec 19, 2025 | Dec 18, 2025 |
| ARS | ARS | 0001171843-25-007670 | Dec 1, 2025 | Aug 31, 2025 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0001171843-25-007669 | Dec 1, 2025 | Jan 16, 2026 |
| DEFA14A | FORM DEFA14A | 0001171843-25-007668 | Dec 1, 2025 | — |
| 10-K | FORM 10-K | 0001171843-25-007481 | Nov 20, 2025 | Aug 31, 2025 |
| 8-K | FORM 8-K | 0001171843-25-007399 | Nov 18, 2025 | — |
| SCHEDULE 13G/A | — | 0000919574-25-006778 | Nov 13, 2025 | — |
| 4 | PRIMARY DOCUMENT | 0001258563-25-000006 | Sep 3, 2025 | Sep 1, 2025 |
| 4 | PRIMARY DOCUMENT | 0001258554-25-000006 | Sep 3, 2025 | Sep 1, 2025 |
| 4 | PRIMARY DOCUMENT | 0001562252-25-000007 | Sep 3, 2025 | Sep 1, 2025 |
| 4 | PRIMARY DOCUMENT | 0001302082-25-000003 | Sep 3, 2025 | Sep 1, 2025 |
| 4 | PRIMARY DOCUMENT | 0001309741-25-000006 | Sep 3, 2025 | Sep 1, 2025 |
| 4 | PRIMARY DOCUMENT | 0001213869-25-000007 | Sep 3, 2025 | Sep 1, 2025 |
| 4 | PRIMARY DOCUMENT | 0001791493-25-000003 | Sep 3, 2025 | Sep 1, 2025 |
| 4 | PRIMARY DOCUMENT | 0001960551-25-000003 | Sep 3, 2025 | Sep 1, 2025 |
| 4 | PRIMARY DOCUMENT | 0001791477-25-000004 | Sep 3, 2025 | Sep 1, 2025 |
| SCHEDULE 13G/A | — | 0000932471-25-000978 | Jul 29, 2025 | — |
| 4 | PRIMARY DOCUMENT | 0001213869-25-000006 | Jul 28, 2025 | Jul 24, 2025 |
| 10-Q | FORM 10-Q | 0001171843-25-004413 | Jul 11, 2025 | May 31, 2025 |
| 8-K | FORM 8-K | 0001171843-25-004410 | Jul 11, 2025 | Jul 10, 2025 |
| 4 | PRIMARY DOCUMENT | 0001562252-25-000006 | May 6, 2025 | — |
| 4 | PRIMARY DOCUMENT | 0001791477-25-000003 | Apr 28, 2025 | Apr 25, 2025 |
| 10-Q | FORM 10-Q | 0001171843-25-002130 | Apr 10, 2025 | Feb 28, 2025 |
| 8-K | FORM 8-K | 0001171843-25-002129 | Apr 10, 2025 | — |
| 8-K | FORM 8-K | 0001171843-25-000318 | Jan 17, 2025 | — |
| 10-Q | FORM 10-Q | 0001171843-25-000165 | Jan 10, 2025 | Nov 30, 2024 |
| 8-K | FORM 8-K | 0001171843-25-000134 | Jan 8, 2025 | — |
| ARS | ARS | 0001171843-24-006644 | Dec 2, 2024 | Aug 31, 2024 |
| DEFA14A | FORM DEFA14A | 0001171843-24-006643 | Dec 2, 2024 | — |
| DEF 14A | DEF14A | 0001171843-24-006642 | Dec 2, 2024 | Nov 2, 2024 |
| 10-K | FORM 10-K | 0001171843-24-006440 | Nov 19, 2024 | Aug 31, 2024 |
| 8-K | FORM 8-K | 0001171843-24-006439 | Nov 19, 2024 | — |
| SC 13G/A | — | 0001398344-24-020732 | Nov 14, 2024 | — |
| SC 13G/A | — | 0000932471-24-001173 | Nov 12, 2024 | — |
| SC 13G/A | — | 0000932471-24-000581 | Nov 4, 2024 | — |
| SC 13D/A | SC 13D/A | 0001140361-24-040129 | Sep 4, 2024 | — |
| 4 | PRIMARY DOCUMENT | 0001526513-24-000009 | Sep 4, 2024 | Sep 1, 2024 |
| 4 | PRIMARY DOCUMENT | 0001526513-24-000008 | Sep 4, 2024 | Sep 1, 2024 |
| 4 | PRIMARY DOCUMENT | 0001526513-24-000012 | Sep 4, 2024 | Sep 1, 2024 |
| 4 | PRIMARY DOCUMENT | 0001526513-24-000011 | Sep 4, 2024 | Sep 1, 2024 |
| 4 | PRIMARY DOCUMENT | 0001526513-24-000010 | Sep 4, 2024 | Sep 1, 2024 |
| 4 | PRIMARY DOCUMENT | 0001526513-24-000007 | Sep 4, 2024 | Sep 1, 2024 |
| 4 | PRIMARY DOCUMENT | 0001526513-24-000006 | Sep 4, 2024 | Sep 1, 2024 |
| 4 | PRIMARY DOCUMENT | 0001526513-24-000005 | Sep 4, 2024 | Sep 1, 2024 |
| 4 | PRIMARY DOCUMENT | 0001526513-24-000004 | Sep 4, 2024 | Sep 1, 2024 |
| 4 | PRIMARY DOCUMENT | 0001235802-24-000073 | Aug 29, 2024 | Aug 26, 2024 |
| 4 | PRIMARY DOCUMENT | 0001526513-24-000003 | Aug 2, 2024 | Aug 1, 2024 |