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Birchtech Corp.
Measuring & Controlling Devices, NEC · DE · CIK 728385
Birchtech Corp. provides activated carbon technologies for air and water purification, including mercury capture and forever chemical removal
red 8-K · 90d
$55M
Market cap
$2.05
Last close
+2.5%
1D
-1.0%
5D
58K
Volume
Price · last 39 sessions+26.5%
May 4L $1.32 · H $2.34Jun 29
273
Total filings
Jun 24, 2026
Last filing
12/31
Fiscal year end
SC 13DSCHEDULE 13DAug 25, 2014SC 13DSC 13DJul 8, 2013SC 13DDENNIS L. PELINOApr 7, 2008SC 13DSC 13DMay 24, 2005SC 13DSC 13DJan 3, 2005
Insider Activity
In the 90 days to Feb 27, 2026: 1 insider bought $750K.
| Date | Insider | Action | Shares | Price | Value |
|---|---|---|---|---|---|
| Feb 27, 2026 | Macpherson RichardPresident and CEO | Buy | 312,500 | $2.40 | $750K |
Open-market buys & sells (Form 4, transaction codes P/S). Source: SEC structured insider data.
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