Company · CIK 728385

# Birchtech Corp.

| CIK | [728385](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000728385) (SEC EDGAR) |
| --- | --- |
| Industry (SIC) | 3829 — Measuring & Controlling Devices, NEC |
| Incorporated in | DE |
| Business address | TX |
| Listed | BCHT (NYSE) |
| First annual or quarterly report | 2008-05-19 |

## Offerings

 3 registrations

| Registration | Label and status | First filed | Last event | Filings |
| --- | --- | --- | --- | --- |
| 333-292701 | Registered company Final prospectus | 2026-01-13 | 2026-02-27 | 5 |
| 333-260960 | Registered company Withdrawn | 2021-11-10 | 2022-08-24 | 2 |
| 333-215307 | Registered company Effective | 2016-12-23 | 2017-01-10 | 2 |

## Filings

 10

| Filed | Filing | Registration | Accession |
| --- | --- | --- | --- |
| 2026-02-27 | [424B4](https://www.sec.gov/Archives/edgar/data/728385/000110465926021168/0001104659-26-021168-index.htm) Final prospectus | 333-292701 | 0001104659-26-021168 |
| 2026-02-17 | [EFFECT](https://www.sec.gov/Archives/edgar/data/728385/999999999526000607/9999999995-26-000607-index.htm) Declared effective | 333-292701 | 9999999995-26-000607 |
| 2026-02-12 | [S-1/A](https://www.sec.gov/Archives/edgar/data/728385/000110465926014131/0001104659-26-014131-index.htm) Amendment | 333-292701 | 0001104659-26-014131 |
| 2026-02-03 | [S-1/A](https://www.sec.gov/Archives/edgar/data/728385/000110465926009808/0001104659-26-009808-index.htm) Amendment | 333-292701 | 0001104659-26-009808 |
| 2026-01-13 | [S-1](https://www.sec.gov/Archives/edgar/data/728385/000110465926003397/0001104659-26-003397-index.htm) Registration filed | 333-292701 | 0001104659-26-003397 |
| 2025-10-23 | [DRS](https://www.sec.gov/Archives/edgar/data/728385/000110465925101822/0001104659-25-101822-index.htm) Draft made public | 377-08605 | 0001104659-25-101822 |
| 2022-08-24 | [RW](https://www.sec.gov/Archives/edgar/data/728385/000147793222006437/0001477932-22-006437-index.htm) Withdrawn | 333-260960 | 0001477932-22-006437 |
| 2021-11-10 | [S-1](https://www.sec.gov/Archives/edgar/data/728385/000147793221008001/0001477932-21-008001-index.htm) Registration filed | 333-260960 | 0001477932-21-008001 |
| 2017-01-10 | [EFFECT](https://www.sec.gov/Archives/edgar/data/728385/999999999517000071/9999999995-17-000071-index.htm) Declared effective | 333-215307 | 9999999995-17-000071 |
| 2016-12-23 | [S-1](https://www.sec.gov/Archives/edgar/data/728385/000147793216014307/0001477932-16-014307-index.htm) Registration filed | 333-215307 | 0001477932-16-014307 |

[All filings of this company](https://equitycapital.markets/filings?cik=728385) · [CSV](https://equitycapital.markets/filings.csv?cik=728385)

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Source page: https://equitycapital.markets/company/728385 · Data: U.S. SEC EDGAR · CC BY 4.0