Symbols

BCHT

Birchtech·AMEX

--(--)

BCHT Filings

2026-03-31 · Earnings Call

Birchtech Corp (BCHT) Q4 2025 Earnings Call Transcript

2026-03-31 · Financials

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]

2026-03-17 · Key Events

Form 8-K - Current report

2026-03-02 · Ownership

Form 4 - Statement of changes in beneficial ownership of securities

2026-02-27 · Key Events

Form 8-K - Current report

2026-02-27 ·

Form 424B4 - Prospectus [Rule 424(b)(4)]

2026-02-25 ·

Form CERT - Certification by an exchange approving securities for listing

2026-02-18 ·

Form EFFECT - Notice of Effectiveness

2026-02-12 · SEC Inquiries

Form CORRESP - Correspondence

2026-02-12 · SEC Inquiries

Form CORRESP - Correspondence