| Type | Title | Date Released | |
|---|---|---|---|
SCHEDULE 13G | LYTTON LAURENCE W (Filed by) | ||
10-Q | Form 10-Q | ||
8-K | Birchtech Corp. Announces Results of 2026 Annual Meeting and Reduction of Authorized Common Stock | ||
ARS | Form ARS | ||
DEF 14A | Form DEF 14A | ||
PRE 14A | Form PRE 14A | ||
10-Q | Form 10-Q | ||
8-K/A | CFO Appointment Finalized with Oyster HR Inc., Annual Salary Set at $425,000 CAD, Plus Discretionary Bonuses | ||
3 | Mioska Michael David (Reporting) | ||
8-K | Birchtech Corp. Appoints Michael Mioska as Chief Financial Officer | ||
8-K | Birchtech Corp. Announces Date for 2026 Annual Meeting of Stockholders | ||
10-K | Form 10-K |