Birchtech Corp.
BCHT- Exchange
- NYSE
- Industry
- Measuring & Controlling Devices, NEC
- SEC CIK
- 0000728385
No open-market purchases or sales by Birchtech Corp. insiders were filed in the last 90 days; 27 institutions reported holding it in 13F filings for Q2 2026, worth $9.33M in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Birchtech Corp. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Birchtech Corp., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| MacPherson Richard | President and CEO | 2,955,095 | Mar 2, 2026 | 2 |
| Kaye David M | Director | 370,142 | Dec 15, 2025 | 1 |
| Pavlish John | Senior VP/Chief Tech Officer | 2,198,528 | Dec 15, 2025 | 1 |
| Coogler Mitzi H | Director | – | Jan 13, 2025 | 0 |
| Greenberg Christopher | Chairman of the Board | 5,427,533 | Jan 16, 2024 | 0 |
| Trettel James | Vice President of Operations | – | Jan 16, 2024 | 0 |
| Grant Troy J | Director | 200,000 | Jan 16, 2024 | 0 |
| Fitzmaurice Fiona | Chief Financial Officer | – | Jan 16, 2024 | 0 |
| Alterna Core Capital Assets Fund II, L.P. | 10% Owner | – | Nov 1, 2022 | 0 |
| Goldin Earle | 10% Owner | – | Nov 1, 2022 | 0 |
| Miller Roger P. | 10% Owner | – | Nov 1, 2022 | 0 |
| Press Eric M. | 10% Owner | – | Nov 1, 2022 | 0 |
| AC Midwest Energy LLC | 10% Owner | – | Nov 1, 2022 | 0 |
| Alterna Capital Partners LLC | 10% Owner | – | Nov 1, 2022 | 0 |
| Alterna General Partner II LLC | 10% Owner | – | Nov 1, 2022 | 0 |
| Satterthwaite Jami L. | Chief Financial Officer | – | Jun 2, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Mar 2, 2026 (view filing) | Feb 27 | 3 days | MacPherson RichardPresident and CEO | PPurchase | +312.5K | $2.40 | +$750.0K | +11.8%2.96M after | |
| Nov 1, 2022 (view filing)2:36 PM ET | Oct 28 | 4 days | Alterna Core Capital Assets Fund II, L.P. and 6 others10% Owner | SSale | −11.7M | $0.00 | $0 | –11.7M after | Derivative |
| Sep 6, 2022 (view filing)3:41 PM ET | Sep 2 | 4 days | Greenberg ChristopherChairman of the Board | PPurchase | +10.0K | $0.24 | +$2.40K | +0.2%4.36M after |