Birchtech Corp. reports

Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Corsicana, TX
SEC filing record 1 source field available
Fiscal year end
31 December
Birchtech Corp. has filed 801 SEC EDGAR filings since 09 Aug 2001

SEC filing history

Showing 1-25 of 596 matching filings.

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25
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1
8-K/A File 001-43118

FORM 8-K/A

Filing date
12 May 2026
Reporting date
01 May 2026
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3

PRIMARY DOCUMENT

Filing date
06 May 2026
Reporting date
01 May 2026
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4

PRIMARY DOCUMENT

Filing date
02 Mar 2026
Reporting date
27 Feb 2026
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424B4 File 333-292701

424B4

Filing date
27 Feb 2026
Reporting date
Not listed
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CERT File 001-43118

NYSE AMERICAN CERTIFICATION

Filing date
25 Feb 2026
Reporting date
Not listed
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EFFECT File 333-292701

EFFECT filing

Filing date
17 Feb 2026
Reporting date
Not listed
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CORRESP

CORRESP filing

Filing date
12 Feb 2026
Reporting date
Not listed
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CORRESP

CORRESP filing

Filing date
12 Feb 2026
Reporting date
Not listed
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CORRESP

CORRESP filing

Filing date
12 Feb 2026
Reporting date
Not listed
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CORRESP

CORRESP filing

Filing date
12 Feb 2026
Reporting date
Not listed
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8-A12B File 001-43118

FORM 8-A12B

Filing date
11 Feb 2026
Reporting date
Not listed
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CORRESP

CORRESP filing

Filing date
09 Feb 2026
Reporting date
Not listed
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CORRESP

CORRESP filing

Filing date
09 Feb 2026
Reporting date
Not listed
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4

PRIMARY DOCUMENT

Filing date
15 Dec 2025
Reporting date
12 Dec 2025
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