Every 8-K that Birchtech Corp. (BCHT) has filed with the SEC in the last 24 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 8-K covers material events a company has to report between its quarterly reports, so if you follow BCHT and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full BCHT filings page.
Birchtech Corp. held its 2026 Annual Meeting on July 23, 2026. Stockholders approved an amendment to the Certificate of Incorporation reducing authorized common stock from 150,000,000 to 50,000,000 shares, and a Certificate of Amendment was filed in Delaware on July 27, 2026 to effect this change.
All four director nominees were elected, including Richard MacPherson with 10,249,226 votes for and 7,415,816 broker non-votes. Stockholders also ratified Rosenberg Rich Baker Berman, P.A. as independent registered public accounting firm for 2026 with 18,265,582 votes for, and approved on an advisory, non-binding basis the compensation of named executive officers.
Birchtech Corp. filed an amendment to its earlier report to disclose final compensation terms for its new Chief Financial Officer, Michael Mioska. Effective May 8, 2026, Mioska will provide full-time CFO services to Birchtech through an employer-of-record arrangement with Canadian firm Oyster HR Inc.
Under this structure, he is employed by Oyster HR Inc. and assigned to Birchtech. He will receive an annual base salary of $425,000 CAD, described as approximately $312,000 USD, and will be eligible for discretionary annual cash bonuses. The engagement is for an indefinite term, subject to standard notice and termination provisions, and all other terms from the original report remain unchanged.
Birchtech Corp. has appointed experienced finance executive Michael Mioska, CPA, MBA, as Chief Financial Officer. He has over 20 years of accounting, audit and financial reporting experience across the United States and Canada and has consulted for Birchtech since 2023.
Mioska has worked closely with Birchtech’s finance team, giving him deep familiarity with the company’s operations, systems and strategic priorities. Management expects his capital markets, M&A and reporting expertise to support the next phase of growth in Birchtech’s specialty activated carbon air and water treatment businesses.
Birchtech Corp. set the date for its 2026 Annual Meeting of Stockholders for Thursday, July 23, 2026, to be held as a virtual-only meeting conducted via remote communications. The company will provide the exact time, access details, and agenda items in its upcoming proxy statement.
Because no annual meeting was held in 2025, stockholders seeking to include proposals in the 2026 proxy materials under Rule 14a-8 must deliver them to the company’s Corsicana, Texas headquarters by the close of business on May 26, 2026. The same deadline applies to stockholder proposals or director nominations submitted outside Rule 14a-8, all of which must satisfy the advance notice provisions in Birchtech’s amended and restated bylaws.
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. 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. 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.