Birchtech Corp. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Kaye David M | — | Option Exercise | 250,000 | $0.58 | $145,000 | 525,356 | Dec 12, 2025 |
| MacPherson Richard | President and CEO | Option Exercise | 500,000 | $0.58 | $290,000 | 13,523,381 | Dec 12, 2025 |
| Pavlish John | Senior VP/Chief Tech Officer | Tax Withholding | 190,560 | $0.91 | $173,410 | 2,198,528 | Dec 11, 2025 |
| Pavlish John | Senior VP/Chief Tech Officer | Option Exercise | 500,000 | $0.19 | $95,000 | 2,270,110 | Jun 20, 2025 |
| MacPherson Richard | President and CEO | Option Exercise | 500,000 | $0.19 | $95,000 | 13,204,403 | Jun 20, 2025 |
| Pavlish John | Senior VP/Chief Tech Officer | Tax Withholding | 245,418 | $0.66 | $161,976 | 1,770,110 | Jun 24, 2024 |
| MacPherson Richard | President and CEO | Tax Withholding | 613,544 | $0.66 | $404,939 | 12,704,403 | Jun 24, 2024 |
| Grant Troy J | — | Award / Grant | 50,000 | — | — | 200,000 | Jan 15, 2024 |
| Kaye David M | — | Option Exercise | 6,250 | $0.25 | $1,563 | 276,934 | Dec 11, 2023 |
| Pavlish John | Senior VP/Chief Tech Officer | Tax Withholding | 3,472 | $0.99 | $3,437 | 1,097,243 | Dec 11, 2023 |
| Kaye David M | — | Option Exercise | 6,250 | $0.33 | $2,063 | 272,796 | Nov 30, 2023 |
| Pavlish John | Senior VP/Chief Tech Officer | Option Exercise | 13,750 | $0.33 | $4,538 | 1,091,611 | Nov 30, 2023 |
| Kaye David M | — | Option Exercise | 6,250 | $0.20 | $1,250 | 269,627 | Oct 31, 2023 |
| Pavlish John | Senior VP/Chief Tech Officer | Tax Withholding | 6,777 | $0.41 | $2,779 | 1,077,861 | Oct 31, 2023 |
| MacPherson Richard | President and CEO | Tax Withholding | 8,112 | $0.41 | $3,326 | 11,817,947 | Oct 31, 2023 |
| Pavlish John | Senior VP/Chief Tech Officer | Tax Withholding | 9,109 | $0.39 | $3,553 | 1,070,888 | Sep 29, 2023 |
| MacPherson Richard | President and CEO | Option Exercise | 16,458 | $0.26 | $4,279 | 11,820,504 | Sep 29, 2023 |
| Kaye David M | — | Option Exercise | 6,250 | $0.26 | $1,625 | 267,518 | Sep 29, 2023 |
| Kaye David M | — | Option Exercise | 6,250 | $0.17 | $1,063 | 264,477 | Jul 28, 2023 |
| Pavlish John | Senior VP/Chief Tech Officer | Option Exercise | 13,750 | $0.17 | $2,338 | 1,073,307 | Jul 28, 2023 |
| MacPherson Richard | President and CEO | Tax Withholding | 8,451 | $0.33 | $2,789 | 11,804,046 | Jul 28, 2023 |
| MacPherson Richard | President and CEO | Tax Withholding | 7,954 | $0.30 | $2,386 | 11,791,101 | Jun 28, 2023 |
| Kaye David M | — | Tax Withholding | 4,375 | $0.30 | $1,313 | 258,227 | Jun 28, 2023 |
| Pavlish John | Senior VP/Chief Tech Officer | Option Exercise | 13,750 | $0.21 | $2,888 | 1,069,182 | Jun 28, 2023 |
| Kaye David M | Secretary | Tax Withholding | 4,898 | $0.37 | $1,812 | 256,352 | Jun 7, 2023 |
| Pavlish John | Senior VP/Chief Tech Officer | Option Exercise | 6,875 | $0.29 | $1,994 | 1,060,678 | Jun 5, 2023 |
| Pavlish John | Senior VP/Chief Tech Officer | Option Exercise | 50,000 | $0.27 | $13,500 | 1,085,945 | Feb 20, 2023 |
| Kaye David M | Secretary | Option Exercise | 250,000 | $0.19 | $47,500 | 350,000 | Feb 1, 2023 |
| MacPherson Richard | President and CEO | Tax Withholding | 140,000 | $0.50 | $70,000 | 11,790,826 | Feb 1, 2023 |
| Greenberg Christopher | Chairman of the Board | Option Exercise | 600,000 | $0.27 | $162,000 | 5,177,533 | Feb 1, 2023 |
| Greenberg Christopher | Chairman of the Board | Option Exercise | 8,333 | $0.29 | $2,417 | 4,519,202 | Nov 15, 2022 |
| MacPherson Richard | President and CEO | Award / Grant | 3,000,000 | — | — | 11,680,826 | Nov 8, 2022 |
| Greenberg Christopher | Chairman of the Board | Purchase | 10,000 | $0.24 | $2,400 | 4,360,869 | Sep 2, 2022 |
| Kaye David M | Secretary | Award / Grant | 100,000 | — | — | 100,000 | May 31, 2022 |
| Greenberg Christopher | Chairman of the Board | Award / Grant | 150,000 | — | — | 4,350,869 | May 31, 2022 |
| Greenberg Christopher | Chairman of the Board | Option Exercise | 125,000 | $0.81 | $101,250 | 4,200,869 | Jun 29, 2021 |
| Greenberg Christopher | Chairman of the Board | Tax Withholding | 9,131 | $1.15 | $10,501 | 4,084,869 | May 1, 2021 |
| MacPherson Richard | President and CEO | Sale | 582,000 | $1.03 | $599,460 | 8,680,826 | Apr 19, 2021 |
| MacPherson Richard | President and CEO | Purchase | 25,000 | $1.15 | $28,750 | 9,262,826 | Mar 22, 2021 |
| MacPherson Richard | President and CEO | X | 2,000,000 | $0.23 | $460,000 | 9,237,826 | Jan 27, 2021 |
| Greenberg Christopher | Chairman of the Board | X | 2,000,000 | $0.23 | $460,000 | 4,069,000 | Jan 27, 2021 |
| Grantham Allan T | — | Award / Grant | 229,333 | — | — | 229,333 | Jun 4, 2019 |
| Van Zijl Frederick | — | Award / Grant | 235,184 | — | — | 235,184 | May 14, 2019 |
| Grantham Allan T | — | Purchase | 5,000 | $0.38 | $1,900 | 1,062,245 | Aug 25, 2017 |
| Greenberg Christopher | Chairman of the Board | Purchase | 15,700 | $0.38 | $5,966 | 40,700 | Aug 25, 2017 |
| Greenberg Christopher | Chairman of the Board | Purchase | 25,000 | $0.43 | $10,750 | 25,000 | Jun 6, 2017 |
| Pavlish John | Senior VP/Chief Tech Officer | Award / Grant | 97,958 | — | — | 1,035,945 | May 23, 2017 |
| Alterna Core Capital Assets Fund II, L.P. | — | X | 902,939 | $1.47 | $1,327,320 | 11,700,000 | Nov 29, 2016 |
| Miller Roger P. | — | Purchase | 1,700,000 | $1.20 | $2,040,000 | 51,497,819 | Nov 18, 2016 |
| MacPherson Richard | President and CEO | Gift | 25,000 | — | — | 10,730,905 | Jun 30, 2016 |