Welcome to our dedicated page for Birchtech SEC filings (Ticker: BCHT), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Birchtech Corp.'s SEC filings document an operating company focused on specialty activated carbon technologies for sustainable air and water treatment. The filings cover common stock registered on NYSE American, public offering registration statements, underwriting agreements, completed equity financing events, and related capital-structure disclosures.
Material-event reports also record governance and corporate matters, including executive finance leadership, annual meeting procedures, shareholder proposal and director nomination mechanics, and patent-related litigation outcomes. The filing record ties these disclosures to Birchtech's SEA® mercury-capture technology, water treatment platform, intellectual property portfolio, and public-company reporting obligations.
Birchtech Corp. expanded its recent stock sale through a partial use of the underwriters’ over-allotment option. The company originally sold 6,250,000 common shares at $2.40 per share, generating gross proceeds of $15.0 million.
On March 17, 2026, the underwriters bought an additional 600,000 shares at the same price, adding approximately $1.4 million of gross proceeds. In total, 6,850,000 shares have been issued in the offering, with aggregate gross proceeds of about $16.4 million and 337,500 over-allotment shares still available.
Birchtech Corp. President and CEO Richard MacPherson reported an open-market purchase of the company’s common stock. He bought 312,500 shares at $2.40 per share for a total of $750,000 in a public offering of 6,250,000 shares that closed on February 27, 2026.
Following this transaction, his directly owned stake increased to 2,955,095 common shares. The share amounts in the filing reflect Birchtech’s 1-for-5 reverse stock split that became effective on December 26, 2025.
Birchtech Corp. completed an underwritten public offering of 6,250,000 shares of common stock at $2.40 per share, generating approximately $13.1 million in net proceeds. Underwriters also have a 30‑day option to buy up to 937,500 additional shares, which would lift net proceeds to about $15.2 million if fully exercised.
The company plans to use the cash, together with existing funds, for ongoing operating expenses, working capital and other general corporate purposes. Birchtech’s CEO purchased $750,000 of stock in the deal, or 312,500 shares, and directors and executive officers agreed to a 90‑day lock‑up. The offering supports Birchtech’s uplisting, as its common stock was approved for trading on the NYSE American under the symbol BCHT while remaining listed on the Toronto Stock Exchange.
Birchtech Corp. is offering 6,250,000 shares of common stock in a primary offering at $2.40 per share. The offering is expected to produce proceeds to the company of $13,950,000 before expenses, with a 30-day underwriter option for an additional 937,500 shares. The company reports 19,455,966 shares outstanding prior to the offering and 25,705,966 shares outstanding immediately after the offering (assuming no exercise of the option). The prospectus gives effect to a 1-for-5 reverse stock split effective December 26, 2025 and notes expected NYSE American trading under the symbol BCHT beginning February 26, 2026. The Chief Executive Officer intends to purchase $750,000 (an aggregate of 312,500 shares) in the offering.
Birchtech Corp. plans a primary offering of 4,464,286 shares of common stock, with an assumed price of $3.36 per share, and has granted underwriters a 30‑day option for 669,643 additional shares. Estimated net proceeds are about $13.1 million, or $15.2 million if the option is fully exercised.
The company provides specialty activated carbon technologies for mercury emissions control at coal‑fired power plants and is expanding into PFAS-focused water treatment. As of February 11, 2026, 19,455,966 shares were outstanding, rising to 23,920,252 after the offering. Key risks include heavy reliance on evolving U.S. environmental regulations, customer concentration, active patent challenges, going‑concern uncertainty, and dependence on collection of a $78.4 million patent judgment that is under appeal.
Birchtech Corp. is conducting a primary offering of 5,449,592 shares of common stock, based on an assumed public offering price of $3.67 per share. The company expects to raise approximately $17.7 million in net proceeds, or about $20.5 million if underwriters fully exercise a 817,439‑share over‑allotment option.
Shares outstanding are expected to increase from 19,455,966 to 24,905,558. Birchtech plans to use the cash, together with existing funds, for ongoing operating expenses, working capital, and general corporate purposes. The company has applied to list its stock on the NYSE American under the symbol “BCHT”, with NYSE American approval a condition to closing the deal; trading would cease on the OTCQB if the uplisting occurs.
Birchtech provides specialty activated carbon technologies for mercury emissions control at coal‑fired power plants and is expanding into water treatment focused on PFAS removal. It highlights regulatory uncertainty around U.S. emissions and water rules, customer concentration, patent protection challenges, and a going concern risk given a year‑end 2025 cash balance of about $2.3 million.
Birchtech Corp. is registering 4,819,278 shares of common stock in a primary offering at an assumed price of $4.15 per share, with a 30‑day option for underwriters to buy up to 722,892 additional shares. The company expects net proceeds of about $17.7 million, or $20.5 million if the option is fully exercised, to fund operating expenses, working capital and general corporate purposes.
Birchtech recently completed a 1‑for‑5 reverse stock split effective December 26, 2025 to help meet listing requirements and plans to move its shares from the OTCQB to the NYSE American under the symbol “BCHT,” which is a condition to closing this offering. Shares outstanding were 19,455,966 before the deal and would be 24,275,244 afterward, excluding the underwriters’ option.
The company provides specialty activated carbon technologies for mercury emissions control at coal‑fired power plants and is expanding into water treatment for PFAS and other contaminants. It discloses substantial doubt about its ability to continue as a going concern given a cash balance of approximately $2.3 million at December 31, 2025 and relies on expected litigation recoveries, new water‑business revenue, and this equity raise to improve liquidity.
Birchtech Corp. reports that on December 29, 2025, a U.S. District Court entered a final judgment in its favor in a previously disclosed patent infringement case against the remaining CERT defendants. The court awarded Birchtech $78,397,157.05 in damages, including pre-judgment interest.
The judgment follows a jury verdict returned on March 1, 2024 for Birchtech and subsequent post-trial proceedings. The court denied the CERT defendants’ motions on implied license and infringement liability, granted Birchtech’s request for pre- and post-judgment interest, and denied Birchtech’s request for enhanced damages.