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    SEC Form 424B4 filed by Birchtech Corp.

    2/27/26 10:11:53 AM ET
    $BCHT
    Industrial Machinery/Components
    Industrials
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    Recent Analyst Ratings for
    $BCHT

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    President and CEO Macpherson Richard bought $750,000 worth of shares (312,500 units at $2.40), increasing direct ownership by 12% to 2,955,095 units (SEC Form 4)

    4 - Birchtech Corp. (0000728385) (Issuer)

    3/2/26 8:39:30 AM ET
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    Birchtech Corp. filed SEC Form 8-K: Other Events, Financial Statements and Exhibits

    8-K - Birchtech Corp. (0000728385) (Filer)

    3/17/26 4:05:47 PM ET
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    Birchtech Corp. filed SEC Form 8-K: Entry into a Material Definitive Agreement, Other Events, Financial Statements and Exhibits

    8-K - Birchtech Corp. (0000728385) (Filer)

    2/27/26 4:01:37 PM ET
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    SEC Form 424B4 filed by Birchtech Corp.

    424B4 - Birchtech Corp. (0000728385) (Filer)

    2/27/26 10:11:53 AM ET
    $BCHT
    Industrial Machinery/Components
    Industrials

    $BCHT
    Press Releases

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    Birchtech to Participate in the iAccess Alpha Virtual Best Ideas Spring Investment Conference

    CORSICANA, Texas, March 05, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE:BCHT) (TSX:BCHT) ("Birchtech" or the "Company"), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced that management will attend the upcoming iAccess Alpha Virtual Best Ideas Spring Investment Conference taking place on March 10-11, 2026. Richard MacPherson, President and CEO of Birchtech, is scheduled to host a webcasted presentation and one-on-one meetings with institutional investors throughout the duration of the event as follows: iAccess Alpha Virtual Best Ideas Spring Investment ConferencePresentation Date: Tuesday, March 10, 2026Presentation Time: 12:

    3/5/26 8:31:00 AM ET
    $BCHT
    Industrial Machinery/Components
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    Birchtech Issues Shareholder Letter and Provides Corporate Update

    CORSICANA, Texas, March 03, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE:BCHT) (TSX:BCHT) ("Birchtech" or the "Company"), a leader in specialty activated carbon technologies for sustainable air and water treatment, today issued the following letter to shareholders from Chief Executive Officer Richard MacPherson. Dear Fellow Shareholders, 2025 was a defining year for Birchtech. We advanced the commercialization of our water platform, strengthened our recurring clean air revenues, and secured a final federal court judgment that meaningfully reinforces the value of our intellectual property portfolio. As we enter 2026, Birchtech stands on a stronger foundation and is well positioned for c

    3/3/26 8:31:00 AM ET
    $BCHT
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    $BCHT
    Insider Trading

    Insider transactions reveal critical sentiment about the company from key stakeholders. See them live in this feed.

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    President and CEO Macpherson Richard bought $750,000 worth of shares (312,500 units at $2.40), increasing direct ownership by 12% to 2,955,095 units (SEC Form 4)

    4 - Birchtech Corp. (0000728385) (Issuer)

    3/2/26 8:39:30 AM ET
    $BCHT
    Industrial Machinery/Components
    Industrials