Birchtech Corp. — 4 Filings
322 4 filings on record
This page lists all 4 filings submitted to the SEC by Birchtech Corp. (BCHT), sorted by most recent first. Each row links to the full filing on EdgarLookup. Birchtech Corp. has filed 322 4 documents with the SEC since 2001. To view all SEC filings by Birchtech Corp., see the full filings list.
All
10-K
10-K/A
10-Q
10-Q/A
10KSB
10KSB/A
10QSB
10SB12G
3
3/A
4
4/A
424B3
424B4
5
8-A12B
8-K
8-K/A
ARS
CERT
CORRESP
D
D/A
DEF 14A
DEF 14C
DEFA14A
DRS
EFFECT
NT 10-K
NT 10-Q
PRE 14A
PRE 14C
REGDEX
RW
S-1
S-1/A
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SC 14F1
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 4 | PRIMARY DOCUMENT | 0001358094-26-000001 | Mar 2, 2026 | Feb 27, 2026 |
| 4 | PRIMARY DOCUMENT | 0001358094-25-000006 | Dec 15, 2025 | Dec 11, 2025 |
| 4 | PRIMARY DOCUMENT | 0001358094-25-000007 | Dec 15, 2025 | Dec 12, 2025 |
| 4 | PRIMARY DOCUMENT | 0001358094-25-000008 | Dec 15, 2025 | Dec 12, 2025 |
| 4 | PRIMARY DOCUMENT | 0000945836-25-000004 | Jun 23, 2025 | Jun 20, 2025 |
| 4 | PRIMARY DOCUMENT | 0000945836-25-000003 | Jun 23, 2025 | Jun 20, 2025 |
| 4 | PRIMARY DOCUMENT | 0000945836-25-000002 | Jan 13, 2025 | Jan 9, 2025 |
| 4 | PRIMARY DOCUMENT | 0000945836-24-000010 | Jun 26, 2024 | Jun 24, 2024 |
| 4 | PRIMARY DOCUMENT | 0000945836-24-000009 | Jun 26, 2024 | Jun 24, 2024 |
| 4 | PRIMARY DOCUMENT | 0000945836-24-000001 | Jan 16, 2024 | Jan 15, 2024 |
| 4 | PRIMARY DOCUMENT | 0000945836-24-000004 | Jan 16, 2024 | Jan 15, 2024 |
| 4 | PRIMARY DOCUMENT | 0000945836-24-000002 | Jan 16, 2024 | Jan 15, 2024 |
| 4 | PRIMARY DOCUMENT | 0000945836-24-000003 | Jan 16, 2024 | Jan 15, 2024 |
| 4 | PRIMARY DOCUMENT | 0000945836-24-000006 | Jan 16, 2024 | Jan 15, 2024 |
| 4 | PRIMARY DOCUMENT | 0000945836-24-000007 | Jan 16, 2024 | Jan 15, 2024 |
| 4 | PRIMARY DOCUMENT | 0000945836-24-000005 | Jan 16, 2024 | Jan 15, 2024 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000025 | Dec 13, 2023 | Dec 11, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000024 | Dec 13, 2023 | Dec 11, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000023 | Dec 4, 2023 | Nov 30, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000022 | Dec 4, 2023 | Nov 30, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000018 | Nov 2, 2023 | Oct 31, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000019 | Nov 2, 2023 | Oct 31, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000020 | Nov 2, 2023 | Oct 31, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000017 | Oct 3, 2023 | Sep 29, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000015 | Oct 2, 2023 | Sep 29, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000016 | Oct 2, 2023 | Sep 29, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000014 | Aug 1, 2023 | Jul 28, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000013 | Aug 1, 2023 | Jul 28, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000012 | Aug 1, 2023 | Jul 28, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000010 | Jun 30, 2023 | Jun 28, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000009 | Jun 30, 2023 | Jun 28, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000011 | Jun 30, 2023 | Jun 28, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000007 | Jun 7, 2023 | Jun 5, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000008 | Jun 7, 2023 | — |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000004 | Feb 22, 2023 | Feb 20, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000001 | Feb 3, 2023 | Feb 1, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000002 | Feb 3, 2023 | Feb 1, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-23-000003 | Feb 3, 2023 | Feb 1, 2023 |
| 4 | PRIMARY DOCUMENT | 0000945836-22-000008 | Nov 17, 2022 | Nov 15, 2022 |
| 4 | PRIMARY DOCUMENT | 0000945836-22-000007 | Nov 10, 2022 | Nov 8, 2022 |
| 4 | PRIMARY DOCUMENT | 0001565778-22-000003 | Nov 1, 2022 | Oct 28, 2022 |
| 4 | PRIMARY DOCUMENT | 0000945836-22-000006 | Sep 6, 2022 | Sep 2, 2022 |
| 4 | PRIMARY DOCUMENT | 0000945836-22-000003 | Jun 2, 2022 | May 31, 2022 |
| 4 | PRIMARY DOCUMENT | 0000945836-22-000004 | Jun 2, 2022 | May 31, 2022 |
| 4 | PRIMARY DOCUMENT | 0000945836-22-000005 | Jun 2, 2022 | May 31, 2022 |
| 4 | PRIMARY DOCUMENT | 0000945836-22-000002 | Jun 2, 2022 | May 31, 2022 |
| 4 | PRIMARY DOCUMENT | 0000945836-22-000001 | Jun 2, 2022 | May 31, 2022 |
| 4 | PRIMARY DOCUMENT | 0000945836-21-000014 | Nov 24, 2021 | Nov 22, 2021 |
| 4 | PRIMARY DOCUMENT | 0000945836-21-000015 | Nov 24, 2021 | Nov 22, 2021 |
| 4 | PRIMARY DOCUMENT | 0000945836-21-000013 | Nov 24, 2021 | Nov 22, 2021 |