Birchtech Corp.

OTC:BCHT

Measuring & Controlling Devices, NEC·CORSICANA, TX

CEO

Macpherson Richard

Financials

20 shown

Type	Period	Ended	Filed
10-Q	Q3 2025	9/30/25	11/13/25	→
10-Q	Q2 2025	6/30/25	8/14/25	→
10-Q	Q1 2025	3/31/25	5/15/25	→
10-K	FY 2024	12/31/24	3/31/25	→
10-Q	Q3 2024	9/30/24	11/14/24	→
10-Q	Q2 2024	6/30/24	8/12/24	→
↓

Earnings Releases (8-K)

8 shown

Filed	Period
3/4/25	Q1 FY2025	→
3/4/24	Q1 FY2024	→
4/20/23	Q1 FY2023	→
1/18/23	Q4 FY2023	→
3/10/22	Q1 FY2022	→
2/17/22	Q1 FY2022	→
↓

News (8-K)

72 shown

Filed	Type	Description
2/27/26	Agreement	Entry into a Material Definitive Agreement	→
1/5/26	Other	Other Events	→
12/29/25	Other	Material Modification to Rights of Security Holders	→
6/20/25	Exec Change	Departure or Appointment of Directors or Certain Officers	→
3/31/25	Restatement	Non-Reliance on Previously Issued Financial Statements	→
1/6/25	Vote	Submission of Matters to a Vote of Security Holders	→
↓

Prospectuses & Registrations

11 shown

Filed	Form	Description
2/27/26	424B4	424B4	→
2/12/26	S-1/A	S-1/A	→
2/3/26	S-1/A	S-1/A	→
1/13/26	S-1	S-1	→
11/27/24	ARS	ARS	→
11/6/23	ARS	ARS	→
↓

Filing History(788 filings)

TypeDateAccessionPeriodSize

Mar 2, 2026

0001358094-26-000001PRIMARY DOCUMENT

Feb 27, 2026

5.2 KB

8-K

Feb 27, 2026

0001104659-26-021534FORM 8-K

Feb 25, 2026

470.9 KB

424B4

Feb 27, 2026

0001104659-26-021168424B4

—

3.9 MB

CERT

Feb 25, 2026

0001143313-26-000011NYSE AMERICAN CERTIFICATION

—

375.9 KB

EFFECT

Feb 17, 2026

9999999995-26-000607

—

2.0 KB

S-1/A

Feb 12, 2026

0001104659-26-014131S-1/A

—

23.0 MB

8-A12B

Feb 11, 2026

0001104659-26-013041FORM 8-A12B

—

16.1 KB

S-1/A

Feb 3, 2026

0001104659-26-009808S-1/A

—

23.1 MB

S-1

Jan 13, 2026

0001104659-26-003397S-1

—

22.9 MB

8-K

Jan 5, 2026

0001477932-26-000031FORM 8-K

Dec 29, 2025

118.7 KB

8-K

Dec 29, 2025

0001477932-25-009214FORM 8-K

Dec 23, 2025

155.9 KB

Dec 15, 2025

0001358094-25-000008PRIMARY DOCUMENT

Dec 12, 2025

8.6 KB

Dec 15, 2025

0001358094-25-000007PRIMARY DOCUMENT

Dec 12, 2025

8.7 KB

Dec 15, 2025

0001358094-25-000006PRIMARY DOCUMENT

Dec 11, 2025

8.7 KB

10-Q

Nov 13, 2025

0001477932-25-008185FORM 10-Q

Sep 30, 2025

5.6 MB

DRS

Oct 23, 2025

0001104659-25-101822

—

2.2 MB

10-Q

Aug 14, 2025

0001477932-25-005905FORM 10-Q

Jun 30, 2025

5.1 MB

Jun 23, 2025

0000945836-25-000004PRIMARY DOCUMENT

Jun 20, 2025

8.7 KB

Jun 23, 2025

0000945836-25-000003PRIMARY DOCUMENT

Jun 20, 2025

8.7 KB

8-K

Jun 20, 2025

0001477932-25-004727FORM 8-K

Jun 13, 2025

121.9 KB

10-Q

May 15, 2025

0001477932-25-003808FORM 10-Q

Mar 31, 2025

4.6 MB

10-K

Mar 31, 2025

0001477932-25-002237FORM 10-K

Dec 31, 2024

10.7 MB

8-K

Mar 31, 2025

0001477932-25-002233FORM 8-K

Mar 28, 2025

132.0 KB

8-K

Mar 4, 2025

0001477932-25-001435FORM 8-K

Mar 4, 2025

145.3 KB

Jan 13, 2025

0000945836-25-000002PRIMARY DOCUMENT

Jan 9, 2025

5.2 KB

25 filings shown

Filed	Form	Description
11/27/24	DEF 14A	DEF 14A	→
11/13/24	PRE 14A	PRE 14A	→
11/3/23	DEF 14A	DEF 14A	→
2/7/22	DEFA14A	DEFA14A	→
1/24/22	DEF 14A	DEF 14A	→
1/10/22	PRE 14A	PRE 14A	→
↓

Birchtech Corp.

Financials

Earnings Releases (8-K)

News (8-K)

Prospectuses & Registrations

Filing History(788 filings)

Proxies

Ownership

Other Filings

Filed	Form	Description
3/2/26	4	PRIMARY DOCUMENT	→
12/15/25	4	PRIMARY DOCUMENT	→
12/15/25	4	PRIMARY DOCUMENT	→
12/15/25	4	PRIMARY DOCUMENT	→
6/23/25	4	PRIMARY DOCUMENT	→
6/23/25	4	PRIMARY DOCUMENT	→
↓

Filed	Form	Description
2/25/26	CERT	NYSE AMERICAN CERTIFICATION	→
2/17/26	EFFECT	EFFECT	→
2/11/26	8-A12B	FORM 8-A12B	→
10/23/25	DRS	DRS	→
8/24/22	RW	RW	→
8/21/19	D/A	D/A	→
↓