Birchtech Corp. (BCHT)

CIK 728385 · operating company. SEC filings, financial statements, 10-K sections, 8-K items and insider trades for Birchtech Corp..

Recent SEC filings

FiledFormAccession number
Aug 13, 202610-Q0001477932-26-004988
Jul 28, 20268-K0001477932-26-004563
Jun 24, 2026DEF 14A0001477932-26-003963
Jun 24, 2026ARS0001477932-26-003964
Jun 8, 2026PRE 14A0001477932-26-003688
May 13, 202610-Q0001477932-26-003054
May 12, 20268-K/A0001477932-26-002995
May 6, 20268-K0001477932-26-002802
May 6, 202630000945836-26-000003
Apr 13, 20268-K0001477932-26-002165
Mar 31, 202610-K0001477932-26-001835
Mar 17, 20268-K0001104659-26-029450
Mar 2, 202640001358094-26-000001
Feb 27, 20268-K0001104659-26-021534
Feb 27, 2026424B40001104659-26-021168
Feb 25, 2026CERT0001143313-26-000011
Feb 17, 2026EFFECT9999999995-26-000607
Feb 12, 2026S-1/A0001104659-26-014131
Feb 11, 20268-A12B0001104659-26-013041
Feb 3, 2026S-1/A0001104659-26-009808
Jan 13, 2026S-10001104659-26-003397
Jan 5, 20268-K0001477932-26-000031
Dec 29, 20258-K0001477932-25-009214
Dec 15, 202540001358094-25-000007
Dec 15, 202540001358094-25-000008