Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Circle Pines, MN
SEC filing record 1 source field available
Fiscal year end
31 August
NORTHERN TECHNOLOGIES INTERNATIONAL CORP has filed 774 SEC EDGAR filings since 11 Jul 1996

SEC filing history

Showing 26-50 of 519 matching filings.

Per page
25
Current page
2
ARS File 001-11038

ARS

Filing date
01 Dec 2025
Reporting date
31 Aug 2025
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DEF 14A File 001-11038

DEFINITIVE PROXY STATEMENT

Filing date
01 Dec 2025
Reporting date
16 Jan 2026
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DEFA14A File 001-11038

FORM DEFA14A

Filing date
01 Dec 2025
Reporting date
Not listed
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SCHEDULE 13G/A File 005-47411

SCHEDULE 13G/A filing

Filing date
13 Nov 2025
Reporting date
Not listed
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4

PRIMARY DOCUMENT

Filing date
03 Sep 2025
Reporting date
01 Sep 2025
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4

PRIMARY DOCUMENT

Filing date
03 Sep 2025
Reporting date
01 Sep 2025
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4

PRIMARY DOCUMENT

Filing date
03 Sep 2025
Reporting date
01 Sep 2025
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4

PRIMARY DOCUMENT

Filing date
03 Sep 2025
Reporting date
01 Sep 2025
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4

PRIMARY DOCUMENT

Filing date
03 Sep 2025
Reporting date
01 Sep 2025
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4

PRIMARY DOCUMENT

Filing date
03 Sep 2025
Reporting date
01 Sep 2025
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4

PRIMARY DOCUMENT

Filing date
03 Sep 2025
Reporting date
01 Sep 2025
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4

PRIMARY DOCUMENT

Filing date
03 Sep 2025
Reporting date
01 Sep 2025
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4

PRIMARY DOCUMENT

Filing date
03 Sep 2025
Reporting date
01 Sep 2025
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SCHEDULE 13G/A File 005-47411

SCHEDULE 13G/A filing

Filing date
29 Jul 2025
Reporting date
Not listed
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4

PRIMARY DOCUMENT

Filing date
28 Jul 2025
Reporting date
24 Jul 2025
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4

PRIMARY DOCUMENT

Filing date
06 May 2025
Reporting date
06 May 2025
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4

PRIMARY DOCUMENT

Filing date
28 Apr 2025
Reporting date
25 Apr 2025
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