Quick Takeaways
- BCHT - Birchtech Corp. has 12 insiders with reported activity on this page.
- No net insider buy/sell flow is currently reported for the last year.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 12 Insiders of Birchtech Corp.
- Symbol
- BCHT on NYSE
- Location
- Corsicana, TX
What Changed
- No meaningful buy/sell imbalance is currently visible in the one-year window.
- Activity will update as new Forms 3/4/5 are filed.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Source Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsInsider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 08 May 2025.
Buys
$0
Shares: 0
Insiders: 0
Sells
$0
Shares: 0
Insiders: 0
Net
$0
Shares: 0
Insiders: 0
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Birchtech Corp. executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Richard MacPherson | President and CEO, Director, 10%+ Owner | $12,343,541 | Mixed | 27 Feb 2026 | ||
| Christopher Greenberg | Chairman of the Board, Director | $5,377,314 | Mixed | 15 Jan 2024 | ||
| John Pavlish | Senior VP/Chief Tech Officer | $2,007,475 | Mixed | 11 Dec 2025 | ||
| David M. Kaye | Director | $345,786 | Mixed | 12 Dec 2025 | ||
| Troy J. Grant | Director | $198,040 | Mixed | 15 Jan 2024 | ||
| Mitzi H. Coogler | Director | $6,601 | Mixed | 09 Jan 2025 | ||
| Michael David Mioska | Chief Financial Officer | Mixed | 01 May 2026 | |||
| James Trettel | Vice President of Operations | Mixed | 15 Jan 2024 | |||
| Fiona Fitzmaurice | Chief Financial Officer | Mixed | 15 Jan 2024 | |||
| Jami L. Satterthwaite | Chief Financial Officer | Mixed | 31 May 2022 | |||
| Gregory R. Powell | Chief Financial Officer | Mixed | 01 Mar 2023 | |||
| Alterna Core Capital Assets Fund II, L.P. | 10%+ Owner | Mixed | 28 Oct 2022 |
Top shareholders of Birchtech Corp. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Richard MacPherson |
3/4/5
|
President and CEO, Director, 10%+ Owner |
—
class O/S missing
|
2,955,095
|
$12,343,541 | — | 27 Feb 2026 | |
| Christopher Greenberg |
3/4/5
|
Chairman of the Board, Director |
—
mixed-class rows
|
5,630,533
mixed-class rows
|
$5,377,314 | — | 15 Jan 2024 | |
| John Pavlish |
3/4/5
|
Senior VP/Chief Tech Officer |
—
mixed-class rows
|
2,398,528
mixed-class rows
|
$2,007,475 | — | 11 Dec 2025 | |
| David M. Kaye |
3/4/5
|
Director |
—
class O/S missing
|
370,142
|
$345,786 | — | 12 Dec 2025 | |
| Ancora Advisors LLC |
13F
|
Company |
—
class O/S missing
|
52,884
|
$198,315 | — | 31 Dec 2025 | |
| Troy J. Grant |
3/4/5
|
Director |
—
class O/S missing
|
200,000
|
$198,040 | — | 15 Jan 2024 | |
| Mink Brook Asset Management LLC |
13F
|
Company |
—
class O/S missing
|
46,200
|
$146,878 | — | 31 Dec 2025 | |
| Mitzi H. Coogler |
3/4/5
|
Director |
—
mixed-class rows
|
110,000
mixed-class rows
|
$6,601 | — | 09 Jan 2025 | |
| Alterna Core Capital Assets Fund II, L.P. |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
11,700,000
|
— | — | 28 Oct 2022 | |
| James Trettel |
3/4/5
|
Vice President of Operations |
—
class O/S missing
|
200,000
|
— | — | 15 Jan 2024 | |
| Jami L. Satterthwaite |
3/4/5
|
Chief Financial Officer |
—
class O/S missing
|
100,000
|
— | — | 31 May 2022 | |
| Fiona Fitzmaurice |
3/4/5
|
Chief Financial Officer |
—
class O/S missing
|
25,000
|
— | — | 15 Jan 2024 |
Recent Insider Transactions by Companies or Individuals for Birchtech Corp.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Richard MacPherson | BCHT | Common Stock | Purchase | 11.8% | 312,500 | 2,955,095 | 27 Feb 2026 | Direct | ||
| David M. Kaye | BCHT | Common Stock | Tax liability | -29.5% | -155,214 | 370,142 | 12 Dec 2025 | Direct | ||
| David M. Kaye | BCHT | Common Stock | Options Exercise | 90.8% | 250,000 | 525,356 | 12 Dec 2025 | Direct | ||
| David M. Kaye | BCHT | Stock Option (Right to Buy) | Options Exercise | -100% | -250,000 | 0 | 12 Dec 2025 | Direct | ||
| Richard MacPherson | BCHT | Common Stock | Tax liability | -2.3% | -310,427 | 13,212,954 | 12 Dec 2025 | Direct | ||
| Richard MacPherson | BCHT | Common Stock | Options Exercise | 3.84% | 500,000 | 13,523,381 | 12 Dec 2025 | Direct | ||
| Richard MacPherson | BCHT | Stock Option (Right to Buy) | Options Exercise | -100% | -500,000 | 0 | 12 Dec 2025 | Direct | ||
| John Pavlish | BCHT | Common Stock | Tax liability | -7.98% | -190,560 | 2,198,528 | 11 Dec 2025 | Direct | ||
| John Pavlish | BCHT | Common Stock | Options Exercise | 14.4% | 300,000 | 2,389,088 | 11 Dec 2025 | Direct | ||
| John Pavlish | BCHT | Stock Option (Right to Buy) | Options Exercise | -60% | -300,000 | 200,000 | 11 Dec 2025 | Direct | ||
| John Pavlish | BCHT | Common Stock | Tax liability | -7.97% | -181,022 | 2,089,088 | 20 Jun 2025 | Direct | ||
| John Pavlish | BCHT | Common Stock | Options Exercise | 28.2% | 500,000 | 2,270,110 | 20 Jun 2025 | Direct | ||
| John Pavlish | BCHT | Stock Option (Right to Buy) | Options Exercise | -100% | -500,000 | 0 | 20 Jun 2025 | Direct | ||
| Richard MacPherson | BCHT | Common Stock | Tax liability | -1.37% | -181,022 | 13,023,381 | 20 Jun 2025 | Direct | ||
| Richard MacPherson | BCHT | Common Stock | Options Exercise | 3.94% | 500,000 | 13,204,403 | 20 Jun 2025 | Direct | ||
| Richard MacPherson | BCHT | Stock Option (Right to Buy) | Options Exercise | -100% | -500,000 | 0 | 20 Jun 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.