David M. Kaye
Secretary at Birchtech Corp.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: Birchtech Corp., 3 years.
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
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Birchtech Corp. July 23, 202682.4%
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Birchtech Corp. December 30, 202494.4%
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Birchtech Corp. December 5, 202398.4%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Dec 12, 2025 | Birchtech Corp. | Option exercise | +250,000 | $0.58 | $145,000 |
| Dec 12, 2025 | Birchtech Corp. | Shares withheld for tax | −155,214 | $0.93 | $144,349 |
| Dec 11, 2023 | Birchtech Corp. | Option exercise | +6,250 | $0.25 | $1,563 |
| Dec 11, 2023 | Birchtech Corp. | Shares withheld for tax | −1,578 | $0.99 | $1,562 |
| Nov 30, 2023 | Birchtech Corp. | Option exercise | +6,250 | $0.33 | $2,063 |
| Nov 30, 2023 | Birchtech Corp. | Shares withheld for tax | −2,112 | $0.98 | $2,070 |
| Oct 31, 2023 | Birchtech Corp. | Option exercise | +6,250 | $0.20 | $1,250 |
| Oct 31, 2023 | Birchtech Corp. | Shares withheld for tax | −3,081 | $0.41 | $1,263 |
| Sep 29, 2023 | Birchtech Corp. | Option exercise | +6,250 | $0.26 | $1,625 |
| Sep 29, 2023 | Birchtech Corp. | Shares withheld for tax | −4,141 | $0.39 | $1,615 |
| Jul 28, 2023 | Birchtech Corp. | Option exercise | +6,250 | $0.17 | $1,063 |
| Jul 28, 2023 | Birchtech Corp. | Shares withheld for tax | −3,209 | $0.33 | $1,059 |
| Jun 28, 2023 | Birchtech Corp. | Option exercise | +6,250 | $0.21 | $1,313 |
| Jun 28, 2023 | Birchtech Corp. | Shares withheld for tax | −4,375 | $0.30 | $1,313 |
| Jun 7, 2023 | Birchtech Corp. | Option exercise | +6,250 | $0.29 | $1,813 |
Questions about David M. Kaye
What boards is David M. Kaye on?
David M. Kaye sits on the board of Birchtech Corp.
How long has David M. Kaye served on boards?
Our records show at least 4 years of board service across 1 board, the earliest from 2023.
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