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| Keyboard |
| Birchtech Corp
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|---|---|
| CIK # | 0000728385 |
| EDGAR Form | CIK | 2011 - 2026 |
|---|---|---|
| 10-K | [0000728385] | |
| 10-Q | [0000728385] | |
| 3 | [0000728385] | |
| 4 | [0000728385] | |
| 8-K | [0000728385] | |
| D | [0000728385] | |
| SC 13D | [0000728385] | |
| SC 13G | [0000728385] |
| Insider Transaction (Form 3/4/5) | Date | Action | Shares | Price | Value ($) |
|---|---|---|---|---|---|
|
Birchtech Corp BCHT
Common Stock
|
2026-02-27 | Buy | 312,500 | $2.40 | 750,000 |
|
Birchtech Corp BCHT
Common Stock
|
2025-12-12 | Tax withheld | 310,427 | $0.93 | 288,697 |
|
Birchtech Corp BCHT
Common Stock
|
2025-12-12 | Tax withheld | 155,214 | $0.93 | 144,349 |
|
Birchtech Corp BCHT
Common Stock
|
2025-12-12 | Option exercise | 250,000 | $0.58 | 145,000 |
|
Birchtech Corp BCHT
Common Stock
|
2025-12-12 | Option exercise | 500,000 | $0.58 | 290,000 |
|
Birchtech Corp BCHT
Stock Option (Right to Buy) · derivative
|
2025-12-12 | Option exercise | 250,000 | $0.00 | |
|
Birchtech Corp BCHT
Stock Option (Right to Buy) · derivative
|
2025-12-12 | Option exercise | 500,000 | $0.00 | |
|
Birchtech Corp BCHT
Stock Option (Right to Buy) · derivative
|
2025-12-11 | Option exercise | 300,000 | $0.00 | |
|
Birchtech Corp BCHT
Common Stock
|
2025-12-11 | Option exercise | 300,000 | $0.58 | 174,000 |
|
Birchtech Corp BCHT
Common Stock
|
2025-12-11 | Tax withheld | 190,560 | $0.91 | 173,410 |
|
Birchtech Corp BCHT
Stock Option (Right to Buy) · derivative
|
2025-06-20 | Option exercise | 500,000 | $0.00 | |
|
Birchtech Corp BCHT
Common Stock
|
2025-06-20 | Option exercise | 500,000 | $0.19 | 95,000 |
|
Birchtech Corp BCHT
Stock Option (Right to Buy) · derivative
|
2025-06-20 | Option exercise | 500,000 | $0.00 | |
|
Birchtech Corp BCHT
Common Stock
|
2025-06-20 | Tax withheld | 181,022 | $0.52 | 94,131 |
|
Birchtech Corp BCHT
Common Stock
|
2025-06-20 | Tax withheld | 181,022 | $0.52 | 94,131 |
|
Birchtech Corp BCHT
Common Stock
|
2025-06-20 | Option exercise | 500,000 | $0.19 | 95,000 |
|
Birchtech Corp BCHT
Stock Option (Right to Buy) · derivative
|
2025-01-09 | Grant | 100,000 | $0.00 | |
|
Birchtech Corp MEEC
Common Stock
|
2024-06-24 | Option exercise | 1,000,000 | $0.45 | 450,000 |
|
Birchtech Corp MEEC
Common Stock
|
2024-06-24 | Tax withheld | 681,715 | $0.66 | 449,932 |
|
Birchtech Corp MEEC
Common Stock
|
2024-06-24 | Option exercise | 600,000 | $0.27 | 162,000 |
| showing 20 of 200 most recent transactions | |||||