Birchtech Corp.
BCHTNYSECIK 728385TechnologyFiscal year ends Dec 31
Reports and events: 248 filings
Newest first, by EDGAR acceptance time (Eastern). Each filing’s page lists its documents on sec.gov and, for 10-K and 10-Q reports, the extracted sections.
What the forms are: 10-K, 10-Q, 8-K, Form 4, DEF 14A, Schedule 13D, Schedule 13G, amendments, accession numbers.
| Filed | Form | What it is | Accession number |
|---|---|---|---|
| 2023-05-3020:00 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001477932-23-004058 |
| 2023-05-1523:01 ET | 10-K | Annual reportPeriod 2022-12-31 | 0001477932-23-003370 |
| 2023-04-2020:30 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001477932-23-002776 |
| 2023-02-1519:00 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001477932-23-001060 |
| 2023-02-0322:00 ET | 8-K | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001477932-23-000748 |
| 2023-01-2512:00 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001477932-23-000521 |
| 2023-01-1818:30 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001477932-23-000366 |
| 2022-12-0722:00 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001477932-22-009159 |
| 2022-11-1418:55 ET | 10-Q | Quarterly reportPeriod 2022-09-30 | 0001477932-22-008466 |
| 2022-11-0221:00 ET | 8-K | 1.01 Entry into a material agreement; 1.02 Termination of a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001477932-22-008126 |
| 2022-09-3021:00 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001477932-22-007379 |
| 2022-08-3116:31 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001477932-22-006550 |
| 2022-08-1521:52 ET | 10-Q | Quarterly reportPeriod 2022-06-30 | 0001477932-22-006137 |
| 2022-08-0821:02 ET | 8-K | 4.01 Change of auditor; 9.01 Financial statements and exhibits | 0001477932-22-005733 |
| 2022-06-0620:30 ET | 8-K | 3.02 Unregistered sale of equity; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001477932-22-004152 |
| 2022-05-1815:15 ET | 10-Q | Quarterly reportPeriod 2022-03-31 | 0001477932-22-003623 |
| 2022-04-0520:30 ET | 10-K | Annual reportPeriod 2021-12-31 | 0001477932-22-002069 |
| 2022-03-1013:00 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001477932-22-001292 |
| 2022-02-2521:00 ET | 8-K | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001477932-22-001055 |
| 2022-02-1713:00 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001477932-22-000898 |
| 2022-01-2811:05 ET | 8-K | 1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits | 0001477932-22-000478 |
| 2022-01-2419:00 ET | DEF 14A | Proxy statementPeriod 2022-01-24 | 0001477932-22-000407 |
| 2021-11-2621:15 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001477932-21-008811 |
| 2021-11-1521:10 ET | 10-Q | Quarterly reportPeriod 2021-09-30 | 0001477932-21-008372 |
| 2021-11-1021:16 ET | S-1 | Registration statement | 0001477932-21-008001 |
| 2021-11-0510:02 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001477932-21-007834 |
| 2021-10-0515:16 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001477932-21-007030 |
| 2021-08-1620:31 ET | 10-Q | Quarterly reportPeriod 2021-06-30 | 0001477932-21-005606 |
| 2021-06-2813:38 ET | 8-K | 3.02 Unregistered sale of equity; 8.01 Other events; 9.01 Financial statements and exhibits | 0001477932-21-004303 |
| 2021-06-0920:00 ET | 8-K | 5.07 Shareholder vote results | 0001477932-21-003927 |
| 2021-06-0720:00 ET | 8-K | 1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits | 0001477932-21-003848 |
| 2021-05-1816:00 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001477932-21-003382 |
| 2021-05-1720:30 ET | 10-Q | Quarterly reportPeriod 2021-03-31 | 0001477932-21-003344 |
| 2021-04-3020:30 ET | DEF 14A | Proxy statementPeriod 2021-06-03 | 0001477932-21-002797 |
| 2021-04-0520:56 ET | 10-K | Annual reportPeriod 2020-12-31 | 0001477932-21-002039 |
| 2021-03-1221:30 ET | 8-K | 3.02 Unregistered sale of equity | 0001477932-21-001403 |
| 2021-03-1021:15 ET | 8-K | 5.08 Item not in the standard list; 9.01 Financial statements and exhibits | 0001477932-21-001347 |
| 2020-11-2322:00 ET | 10-Q | Quarterly reportPeriod 2020-09-30 | 0001477932-20-006882 |
| 2020-10-2317:00 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001477932-20-006043 |
| 2020-09-2320:05 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001477932-20-005566 |
| 2020-08-1921:00 ET | 10-Q | Quarterly reportPeriod 2020-06-30 | 0001477932-20-005080 |
| 2020-08-0616:00 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0001477932-20-004577 |
| 2020-07-1420:00 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001477932-20-003970 |
| 2020-07-0612:00 ET | 10-Q | Quarterly reportPeriod 2020-03-31 | 0001477932-20-003741 |
| 2020-06-0913:41 ET | 8-K | 4.01 Change of auditor; 9.01 Financial statements and exhibits | 0001477932-20-003266 |
| 2020-05-1517:51 ET | 8-K | 8.01 Other events | 0001477932-20-002791 |
| 2020-05-1421:01 ET | 10-K | Annual reportPeriod 2019-12-31 | 0001477932-20-002679 |
| 2020-04-1421:00 ET | 8-K | 4.02 Non-reliance on financial statements; 8.01 Other events | 0001477932-20-001960 |
| 2019-11-1922:00 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001477932-19-006721 |
| 2019-11-1422:01 ET | 10-Q | Quarterly reportPeriod 2019-09-30 | 0001477932-19-006565 |
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 14:55 ET. Listed shows no prices and gives no investment advice.