Northern Technologies International Corporation
    SEC Filings

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    All SEC filings by Northern Technologies International Corporation (NTIC) — annual and quarterly reports, current reports, registrations, proxies and ownership forms, updated in real time.

    Financials

    10-QQuarterly reportView DiffJul 9, 2026
    10-QQuarterly reportView DiffApr 9, 2026
    10-QQuarterly reportView DiffJan 8, 2026
    ARSAnnual report to shareholdersDec 1, 2025
    10-KAnnual reportView DiffNov 20, 2025
    10-QQuarterly reportView DiffJul 10, 2025
    10-QQuarterly reportView DiffApr 10, 2025
    10-QQuarterly reportView DiffJan 10, 2025
    ARSAnnual report to shareholdersDec 2, 2024
    10-KAnnual reportView DiffNov 19, 2024

    Events

    8-KNorthern Technologies International Corporation Reports Financial Results for Third Quarter Fiscal 2026Jul 9, 2026
    8-KOther EventsApr 24, 2026
    8-KNorthern Technologies International Corporation Reports Financial Results for Second Quarter Fiscal 2026Apr 9, 2026
    8-KSubmission of Matters to a Vote of Security HoldersJan 16, 2026
    8-KNorthern Technologies International Corporation Reports Financial Results for First Quarter Fiscal 2026Jan 8, 2026
    8-KEntry Into a Material Definitive AgreementDec 18, 2025
    8-KNorthern Technologies International Corporation Reports Financial Results for Fourth Quarter and Full Year Fiscal 2025Nov 18, 2025
    8-KNorthern Technologies International Corporation Reports Financial Results for Third Quarter Fiscal 2025Jul 10, 2025
    8-KNorthern Technologies International Corporation Reports Financial Results for Second Quarter Fiscal 2025Apr 10, 2025
    8-KSubmission of Matters to a Vote of Security HoldersJan 17, 2025

    Registrations and Prospectuses

    S-8Registration of securities for employeesJan 22, 2024
    S-8 POSRegistration of securities for employees (post-effective amendment)Jan 22, 2024
    S-8 POSRegistration of securities for employees (post-effective amendment)Jan 22, 2024
    S-8Registration of securities for employeesJan 19, 2021
    S-8Registration of securities for employeesJan 28, 2019
    S-3Shelf registrationDec 5, 2012
    S-8 POSRegistration of securities for employees (post-effective amendment)Feb 3, 2012
    S-8Registration of securities for employeesJan 24, 2011
    S-8 POSRegistration of securities for employees (post-effective amendment)Nov 23, 2010
    424B5Prospectus supplement for primary offeringSep 18, 2009

    Proxies

    DEF 14ADefinitive proxyView DiffDec 1, 2025
    DEFA14AAdditional proxy soliciting materialsDec 1, 2025
    DEFA14AAdditional proxy soliciting materialsDec 2, 2024
    DEF 14ADefinitive proxyView DiffDec 2, 2024
    DEFA14AAdditional proxy soliciting materialsDec 4, 2023
    DEF 14ADefinitive proxyView DiffDec 4, 2023
    DEFA14AAdditional proxy soliciting materialsDec 20, 2022
    DEFA14AAdditional proxy soliciting materialsDec 5, 2022
    DEF 14ADefinitive proxyView DiffDec 5, 2022
    PRE 14APreliminary proxyNov 16, 2022

    Other

    UPLOADLetter from SECMar 10, 2015
    CORRESPCorrespondence with SECFeb 20, 2015
    UPLOADLetter from SECFeb 10, 2015
    EFFECTNotice of effectivenessDec 18, 2012
    UPLOADLetter from SECJun 29, 2010
    CORRESPCorrespondence with SECJun 24, 2010
    UPLOADLetter from SECJun 21, 2010
    CORRESPCorrespondence with SECMay 27, 2010
    UPLOADLetter from SECMay 13, 2010
    CORRESPCorrespondence with SECMar 16, 2010

    Ownership

    4Lynch G PatrickSep 4, 2026
    4Wolsfeld Matthew CSep 3, 2026
    4Nigon RichardSep 3, 2026
    4Lee SunggyuSep 3, 2026
    4Kemp Sarah E.Sep 3, 2026
    4Pinho Cristina Lucia DuarteSep 3, 2026
    4Von Falkenhausen KonstantinSep 3, 2026
    4Narayan RamaniSep 3, 2026
    4Calderon Nancy E.Sep 3, 2026
    4Lynch G PatrickJul 31, 2026