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. 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.
Birchtech Corp. is implementing a 1-for-5 reverse stock split of its common stock. A certificate of amendment was filed in Delaware on December 23, 2025, making the split effective on December 26, 2025. Trading on a split-adjusted basis is expected to begin on December 31, 2025.
Every 5 issued and outstanding shares of common stock will be automatically converted into 1 share. Stockholders’ overall ownership percentage will stay the same, but any fractional share will be rounded up to the next whole share. The number of authorized shares and the $0.001 par value will not change, and outstanding equity awards, options and warrants will be adjusted proportionally.
The trading symbol BCHT will remain the same, though a temporary “D” will be added on the OTCQB for 20 business days. The company’s transfer agent, Transfer Online, Inc., will coordinate the exchange process, with book-entry and street-name holdings adjusted automatically.
Birchtech Corp. director David M. Kaye reported exercising stock options for 250,000 shares of common stock on 12/12/2025. The options had an exercise price of $0.58 per share. The transaction was structured as a cashless exercise, where 155,214 shares were withheld by the company at a VWAP of $0.9342 per share to pay the exercise cost, resulting in 94,786 net shares of common stock being issued to him.
After these transactions, Kaye directly beneficially owned 370,142 shares of Birchtech common stock, and the underlying stock option for 250,000 shares was fully exercised, leaving no derivative securities beneficially owned.
Birchtech Corp. insider Richard MacPherson, the company’s President, CEO, director and 10% owner, reported an option exercise and related share withholding. On 12/12/2025 he exercised a stock option for 500,000 shares of common stock at $0.58 per share using a cashless exercise.
To fund the exercise cost, 310,427 shares were withheld by Birchtech at a VWAP of $0.9342 per share, resulting in 189,573 net new shares of common stock being issued to him. After these transactions, he directly owns 13,212,954 shares of Birchtech common stock.