Listed

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.

Birchtech Corp., Reports and events
FiledFormWhat it isAccession number
2023-05-3020:00 ET8-K5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits0001477932-23-004058
2023-05-1523:01 ET10-KAnnual reportPeriod 2022-12-310001477932-23-003370
2023-04-2020:30 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0001477932-23-002776
2023-02-1519:00 ET8-K5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits0001477932-23-001060
2023-02-0322:00 ET8-K1.01 Entry into a material agreement; 9.01 Financial statements and exhibits0001477932-23-000748
2023-01-2512:00 ET8-K7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits0001477932-23-000521
2023-01-1818:30 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0001477932-23-000366
2022-12-0722:00 ET8-K5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits0001477932-22-009159
2022-11-1418:55 ET10-QQuarterly reportPeriod 2022-09-300001477932-22-008466
2022-11-0221:00 ET8-K1.01 Entry into a material agreement; 1.02 Termination of a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits0001477932-22-008126
2022-09-3021:00 ET8-K1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits0001477932-22-007379
2022-08-3116:31 ET8-K1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits0001477932-22-006550
2022-08-1521:52 ET10-QQuarterly reportPeriod 2022-06-300001477932-22-006137
2022-08-0821:02 ET8-K4.01 Change of auditor; 9.01 Financial statements and exhibits0001477932-22-005733
2022-06-0620:30 ET8-K3.02 Unregistered sale of equity; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits0001477932-22-004152
2022-05-1815:15 ET10-QQuarterly reportPeriod 2022-03-310001477932-22-003623
2022-04-0520:30 ET10-KAnnual reportPeriod 2021-12-310001477932-22-002069
2022-03-1013:00 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0001477932-22-001292
2022-02-2521:00 ET8-K5.07 Shareholder vote results; 9.01 Financial statements and exhibits0001477932-22-001055
2022-02-1713:00 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0001477932-22-000898
2022-01-2811:05 ET8-K1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits0001477932-22-000478
2022-01-2419:00 ETDEF 14AProxy statementPeriod 2022-01-240001477932-22-000407
2021-11-2621:15 ET8-K5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits0001477932-21-008811
2021-11-1521:10 ET10-QQuarterly reportPeriod 2021-09-300001477932-21-008372
2021-11-1021:16 ETS-1Registration statement0001477932-21-008001
2021-11-0510:02 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0001477932-21-007834
2021-10-0515:16 ET8-K7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits0001477932-21-007030
2021-08-1620:31 ET10-QQuarterly reportPeriod 2021-06-300001477932-21-005606
2021-06-2813:38 ET8-K3.02 Unregistered sale of equity; 8.01 Other events; 9.01 Financial statements and exhibits0001477932-21-004303
2021-06-0920:00 ET8-K5.07 Shareholder vote results0001477932-21-003927
2021-06-0720:00 ET8-K1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits0001477932-21-003848
2021-05-1816:00 ET8-K5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits0001477932-21-003382
2021-05-1720:30 ET10-QQuarterly reportPeriod 2021-03-310001477932-21-003344
2021-04-3020:30 ETDEF 14AProxy statementPeriod 2021-06-030001477932-21-002797
2021-04-0520:56 ET10-KAnnual reportPeriod 2020-12-310001477932-21-002039
2021-03-1221:30 ET8-K3.02 Unregistered sale of equity0001477932-21-001403
2021-03-1021:15 ET8-K5.08 Item not in the standard list; 9.01 Financial statements and exhibits0001477932-21-001347
2020-11-2322:00 ET10-QQuarterly reportPeriod 2020-09-300001477932-20-006882
2020-10-2317:00 ET8-K5.02 Departure or appointment of officers or directors0001477932-20-006043
2020-09-2320:05 ET8-K7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits0001477932-20-005566
2020-08-1921:00 ET10-QQuarterly reportPeriod 2020-06-300001477932-20-005080
2020-08-0616:00 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001477932-20-004577
2020-07-1420:00 ET8-K5.02 Departure or appointment of officers or directors0001477932-20-003970
2020-07-0612:00 ET10-QQuarterly reportPeriod 2020-03-310001477932-20-003741
2020-06-0913:41 ET8-K4.01 Change of auditor; 9.01 Financial statements and exhibits0001477932-20-003266
2020-05-1517:51 ET8-K8.01 Other events0001477932-20-002791
2020-05-1421:01 ET10-KAnnual reportPeriod 2019-12-310001477932-20-002679
2020-04-1421:00 ET8-K4.02 Non-reliance on financial statements; 8.01 Other events0001477932-20-001960
2019-11-1922:00 ET8-K5.02 Departure or appointment of officers or directors0001477932-19-006721
2019-11-1422:01 ET10-QQuarterly reportPeriod 2019-09-300001477932-19-006565

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.