Columbia Thermostat Fund
    SEC Filings

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    All SEC filings by Columbia Thermostat Fund (COTZX) — annual and quarterly reports, current reports, registrations, proxies and ownership forms, updated in real time.

    Financials

    N-CSRSCertified semi-annual shareholder report (management investment company)Sep 4, 2026
    N-CENAnnual report (registered investment company)Mar 10, 2026
    N-CSRCertified annual shareholder report (management investment company)Mar 6, 2026
    N-CSRSCertified semi-annual shareholder report (management investment company)Sep 4, 2025
    N-CENAnnual report (registered investment company)Mar 12, 2025
    N-CSRCertified annual shareholder report (management investment company)Mar 5, 2025
    N-CSRSCertified semi-annual shareholder report (management investment company)Sep 5, 2024
    N-CENAnnual report (registered investment company)Mar 13, 2024
    N-CSRCertified annual shareholder report (management investment company)Mar 1, 2024
    N-CSRSCertified semi-annual shareholder report (management investment company)Sep 1, 2023

    Events

    No results found.

    Registrations and Prospectuses

    40-APP/AApplication for exemptive order (Investment Company Act)Oct 24, 2025
    POS EXAdditional exhibits for listingJul 18, 2025
    40-APP/AApplication for exemptive order (Investment Company Act)Jun 26, 2025
    40-APPApplication for exemptive order (Investment Company Act)May 19, 2025
    POS EXAdditional exhibits for listingApr 4, 2025
    POS EXAdditional exhibits for listingJun 13, 2023
    N-14/ARegistration statement for investment companies business combinationFeb 9, 2023
    N-14Registration statement for investment companies business combinationFeb 3, 2023
    RWRegistration withdrawal requestFeb 3, 2023
    N-14Registration statement for investment companies business combinationDec 20, 2022

    Proxies

    N-PXAnnual report of proxy voting recordAug 18, 2026
    N-PXAnnual report of proxy voting recordAug 21, 2025
    DEF 14ADefinitive proxyJan 13, 2025
    N-PXAnnual report of proxy voting recordSep 3, 2024
    N-PXAnnual report of proxy voting recordAug 24, 2023
    N-PXAnnual report of proxy voting recordAug 18, 2022
    N-PXAnnual report of proxy voting recordAug 24, 2021
    N-PXAnnual report of proxy voting recordAug 21, 2020
    N-PXAnnual report of proxy voting recordAug 22, 2019
    N-PXAnnual report of proxy voting recordAug 21, 2018

    Other

    CORRESPCorrespondence with SECMar 21, 2024
    EFFECTNotice of effectivenessFeb 13, 2023
    CORRESPCorrespondence with SECFeb 9, 2023
    CORRESPCorrespondence with SECApr 3, 2020
    CORRESPCorrespondence with SECApr 1, 2020
    CORRESPCorrespondence with SECJul 29, 2013
    CORRESPCorrespondence with SECAug 17, 2011
    CORRESPCorrespondence with SECDec 22, 2010

    Ownership

    NPORT-PColumbia Thermostat Fund (jun 2026 Report)Aug 28, 2026
    NPORT-PColumbia Acorn International Select (jun 2026 Report)Aug 28, 2026
    NPORT-PColumbia Acorn Fund (jun 2026 Report)Aug 28, 2026
    NPORT-PColumbia Acorn International (jun 2026 Report)Aug 28, 2026
    NPORT-PColumbia Acorn European Fund (jun 2026 Report)Aug 28, 2026
    NPORT-PColumbia Acorn International Select (mar 2026 Report)May 28, 2026
    NPORT-PColumbia Acorn Fund (mar 2026 Report)May 28, 2026
    NPORT-PColumbia Thermostat Fund (mar 2026 Report)May 28, 2026
    NPORT-PColumbia Acorn International (mar 2026 Report)May 28, 2026
    NPORT-PColumbia Acorn European Fund (mar 2026 Report)May 28, 2026