Birchtech Corp.

8-K Modified rights of security holders; Amended charter or bylaws; Shareholder vote results Jul 28, 2026 10-Q Quarter ended 2026-03-31 May 13, 2026 8-K/A Director or officer change May 12, 2026 8-K Director or officer change May 6, 2026 8-K Item 5.08; Other events Apr 13, 2026 10-K Fiscal year ended 2025-12-31 Mar 31, 2026 8-K Other events Mar 17, 2026 8-K Entered a material agreement; Other events Feb 27, 2026 8-K Other events Jan 5, 2026 8-K Modified rights of security holders; Amended charter or bylaws Dec 29, 2025 10-Q Quarter ended 2025-09-30 Nov 13, 2025 10-Q Quarter ended 2025-06-30 Aug 14, 2025 8-K Director or officer change Jun 20, 2025 10-Q Quarter ended 2025-03-31 May 15, 2025 10-K Fiscal year ended 2024-12-31 Mar 31, 2025 8-K Previously issued financials not reliable Mar 31, 2025 8-K Results of operations (earnings release) Mar 4, 2025 8-K Shareholder vote results Jan 6, 2025 8-K Amended charter or bylaws; Other events Nov 15, 2024 10-Q Quarter ended 2024-09-30 Nov 14, 2024 8-K Other events Oct 21, 2024 8-K Amended charter or bylaws; Regulation FD disclosure; Other events Oct 17, 2024 10-Q Quarter ended 2024-06-30 Aug 12, 2024 8-K Other events Aug 1, 2024 8-K Director or officer change Jun 13, 2024 10-Q Quarter ended 2024-03-31 May 15, 2024 10-K Fiscal year ended 2023-12-31 Apr 16, 2024 8-K Other events Mar 5, 2024 8-K Entered a material agreement; Results of operations (earnings release); Other events Mar 4, 2024 8-K Other events Jan 4, 2024 8-K Shareholder vote results Dec 7, 2023 10-Q Quarter ended 2023-09-30 Nov 20, 2023 8-K Other events Nov 14, 2023 8-K Director or officer change Nov 7, 2023 8-K Director or officer change Oct 16, 2023 8-K Item 5.08; Other events Sep 15, 2023 8-K Changed accountants Sep 14, 2023 10-Q Quarter ended 2023-06-30 Aug 16, 2023 8-K Other events Jul 10, 2023 8-K Director or officer change Jul 6, 2023