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Birchtech Corp.

BCHT Clue Score34
United States Fiscal year ends December CIK 0000728385
$1.39 -3.47% Close, 9 Oct 2026

Price, with every insider trade on it

Closing prices, 12 months · point at a dot for who traded, or at the line for the close
1.39 on 9 Oct 2026
4 2 1 Oct 2025 Apr 2026 Oct 2026 13 Oct 2025 $0.67 14 Oct 2025 $0.70 15 Oct 2025 $0.70 16 Oct 2025 $0.68 17 Oct 2025 $0.67 20 Oct 2025 $0.68 21 Oct 2025 $0.70 22 Oct 2025 $0.69 23 Oct 2025 $0.69 24 Oct 2025 $0.69 27 Oct 2025 $0.68 28 Oct 2025 $0.67 29 Oct 2025 $0.76 30 Oct 2025 $0.74 31 Oct 2025 $0.75 3 Nov 2025 $0.77 4 Nov 2025 $0.74 5 Nov 2025 $0.73 6 Nov 2025 $0.70 7 Nov 2025 $0.70 10 Nov 2025 $0.70 11 Nov 2025 $0.69 12 Nov 2025 $0.73 13 Nov 2025 $0.75 14 Nov 2025 $0.77 17 Nov 2025 $0.80 18 Nov 2025 $0.78 19 Nov 2025 $0.76 20 Nov 2025 $0.78 21 Nov 2025 $0.85 24 Nov 2025 $0.89 25 Nov 2025 $0.87 26 Nov 2025 $0.87 28 Nov 2025 $0.89 1 Dec 2025 $0.88 2 Dec 2025 $0.87 3 Dec 2025 $0.88 4 Dec 2025 $0.86 5 Dec 2025 $0.88 8 Dec 2025 $0.91 9 Dec 2025 $0.95 10 Dec 2025 $0.93 11 Dec 2025 $0.91 12 Dec 2025 $0.89 15 Dec 2025 $0.88 16 Dec 2025 $0.89 17 Dec 2025 $0.66 18 Dec 2025 $0.70 19 Dec 2025 $0.83 22 Dec 2025 $0.81 23 Dec 2025 $0.77 24 Dec 2025 $0.80 26 Dec 2025 $0.75 29 Dec 2025 $0.81 30 Dec 2025 $0.80 31 Dec 2025 $3.75 2 Jan 2026 $4.13 5 Jan 2026 $4.24 6 Jan 2026 $4.34 7 Jan 2026 $4.30 8 Jan 2026 $4.17 9 Jan 2026 $4.15 12 Jan 2026 $3.94 13 Jan 2026 $3.94 14 Jan 2026 $3.79 15 Jan 2026 $3.82 16 Jan 2026 $3.98 20 Jan 2026 $3.76 21 Jan 2026 $3.94 22 Jan 2026 $3.89 23 Jan 2026 $3.96 26 Jan 2026 $3.80 27 Jan 2026 $3.79 28 Jan 2026 $3.68 29 Jan 2026 $3.67 30 Jan 2026 $3.60 2 Feb 2026 $3.58 3 Feb 2026 $3.45 4 Feb 2026 $3.49 5 Feb 2026 $3.45 6 Feb 2026 $3.36 9 Feb 2026 $3.40 10 Feb 2026 $3.33 11 Feb 2026 $3.36 12 Feb 2026 $3.16 13 Feb 2026 $3.19 17 Feb 2026 $3.09 18 Feb 2026 $2.84 19 Feb 2026 $2.76 20 Feb 2026 $2.76 23 Feb 2026 $2.82 24 Feb 2026 $2.70 25 Feb 2026 $2.81 26 Feb 2026 $2.40 27 Feb 2026 $2.36 2 Mar 2026 $2.35 3 Mar 2026 $2.24 4 Mar 2026 $2.28 5 Mar 2026 $2.27 6 Mar 2026 $2.35 9 Mar 2026 $2.32 10 Mar 2026 $2.40 11 Mar 2026 $2.32 12 Mar 2026 $2.29 13 Mar 2026 $2.10 16 Mar 2026 $2.13 17 Mar 2026 $2.16 18 Mar 2026 $2.18 19 Mar 2026 $2.14 20 Mar 2026 $2.14 23 Mar 2026 $2.09 24 Mar 2026 $2.09 25 Mar 2026 $2.07 26 Mar 2026 $2.05 27 Mar 2026 $1.91 30 Mar 2026 $1.87 31 Mar 2026 $1.90 1 Apr 2026 $1.93 2 Apr 2026 $1.86 6 Apr 2026 $1.95 7 Apr 2026 $1.88 8 Apr 2026 $1.89 9 Apr 2026 $1.74 10 Apr 2026 $1.66 13 Apr 2026 $1.73 14 Apr 2026 $1.80 15 Apr 2026 $1.82 16 Apr 2026 $1.68 17 Apr 2026 $1.62 20 Apr 2026 $1.51 21 Apr 2026 $1.54 22 Apr 2026 $1.51 23 Apr 2026 $1.52 24 Apr 2026 $1.55 27 Apr 2026 $1.59 28 Apr 2026 $1.48 29 Apr 2026 $1.57 30 Apr 2026 $1.61 1 May 2026 $1.59 4 May 2026 $1.62 5 May 2026 $1.63 6 May 2026 $1.51 7 May 2026 $1.41 8 May 2026 $1.40 11 May 2026 $1.34 12 May 2026 $1.32 13 May 2026 $1.34 14 May 2026 $1.57 15 May 2026 $1.48 18 May 2026 $1.43 19 May 2026 $1.35 20 May 2026 $1.39 21 May 2026 $1.41 22 May 2026 $1.38 26 May 2026 $1.54 27 May 2026 $1.56 28 May 2026 $1.80 29 May 2026 $1.72 1 Jun 2026 $1.80 2 Jun 2026 $1.86 3 Jun 2026 $2.10 4 Jun 2026 $2.13 5 Jun 2026 $1.92 8 Jun 2026 $2.00 9 Jun 2026 $1.89 10 Jun 2026 $1.93 11 Jun 2026 $2.08 12 Jun 2026 $2.10 15 Jun 2026 $2.06 16 Jun 2026 $2.17 17 Jun 2026 $2.02 18 Jun 2026 $2.34 22 Jun 2026 $2.07 23 Jun 2026 $1.98 24 Jun 2026 $1.96 25 Jun 2026 $2.03 26 Jun 2026 $2.00 29 Jun 2026 $2.05 30 Jun 2026 $2.05 1 Jul 2026 $2.12 2 Jul 2026 $2.08 6 Jul 2026 $2.12 7 Jul 2026 $2.10 8 Jul 2026 $2.05 9 Jul 2026 $1.94 10 Jul 2026 $1.92 13 Jul 2026 $1.92 14 Jul 2026 $1.87 15 Jul 2026 $1.71 16 Jul 2026 $1.71 17 Jul 2026 $1.60 20 Jul 2026 $1.68 21 Jul 2026 $1.54 22 Jul 2026 $1.51 23 Jul 2026 $1.51 24 Jul 2026 $1.40 27 Jul 2026 $1.43 28 Jul 2026 $1.40 29 Jul 2026 $1.38 30 Jul 2026 $1.38 31 Jul 2026 $1.36 3 Aug 2026 $1.41 4 Aug 2026 $1.37 5 Aug 2026 $1.38 6 Aug 2026 $1.39 7 Aug 2026 $1.39 10 Aug 2026 $1.43 11 Aug 2026 $1.37 12 Aug 2026 $1.48 13 Aug 2026 $1.44 14 Aug 2026 $1.29 17 Aug 2026 $1.30 18 Aug 2026 $1.39 19 Aug 2026 $1.38 20 Aug 2026 $1.40 21 Aug 2026 $1.35 24 Aug 2026 $1.28 25 Aug 2026 $1.30 26 Aug 2026 $1.28 27 Aug 2026 $1.24 28 Aug 2026 $1.19 31 Aug 2026 $1.20 1 Sep 2026 $1.18 2 Sep 2026 $1.16 3 Sep 2026 $1.17 4 Sep 2026 $1.19 8 Sep 2026 $1.19 9 Sep 2026 $1.34 10 Sep 2026 $1.33 11 Sep 2026 $1.38 14 Sep 2026 $1.46 15 Sep 2026 $1.62 16 Sep 2026 $1.60 17 Sep 2026 $1.65 18 Sep 2026 $1.76 21 Sep 2026 $1.74 22 Sep 2026 $1.65 23 Sep 2026 $1.73 24 Sep 2026 $1.62 25 Sep 2026 $1.61 28 Sep 2026 $1.57 29 Sep 2026 $1.48 30 Sep 2026 $1.40 1 Oct 2026 $1.43 2 Oct 2026 $1.50 5 Oct 2026 $1.46 6 Oct 2026 $1.49 7 Oct 2026 $1.45 8 Oct 2026 $1.44 9 Oct 2026 $1.39 MacPherson Richard President and CEO Bought $750.00K 27 Feb 2026 · at $2.40 · 11.8% of stake
1 buy0 sales at will0 planned sales

Key numbers

Fiscal year 2025, ended 31 Dec 2025, as filed
Revenue
$17.63M
Net income
$3.03M
Free cash flow
$729.41K
Gross margin
42.0%
Operating margin
-17.2%
Net margin
-17.2%
Revenue growth, 1 yr
1.3%
Revenue growth, 5 yr
16.7% a year

Revenue and profit

Fiscal years, as filed with the SEC · point at a year for the detail
Full statements →
8M -6M FY20 Fiscal year 2020 Revenue $8.16M Net income $5.83M Margin -71.4% 13M -4M FY21 Fiscal year 2021 Revenue $13.01M Net income $3.63M Margin -27.9% · growth +59.5% 22M -2M FY22 Fiscal year 2022 Revenue $21.62M Net income $1.58M Margin -7.3% · growth +66.2% 18M 6M FY23 Fiscal year 2023 Revenue $17.63M Net income $5.67M Margin 32.2% · growth -18.5% 17M -11M FY24 Fiscal year 2024 Revenue $17.41M Net income $10.80M Margin -62.1% · growth -1.2% 18M -3M FY25 Fiscal year 2025 Revenue $17.63M Net income $3.03M Margin -17.2% · growth +1.3%
RevenueNet incomeLoss

Latest insider transactions

From Form 4, most recent first
All of them →
DateInsiderTypeValueOf own stake
27 Feb 2026 MacPherson Richard
President and CEO
Bought $750.00K 11.8%
2 Sep 2022 Greenberg Christopher
Chairman of the Board
Bought $2.40K 0.2%
19 Apr 2021 MacPherson Richard
President and CEO
Sold, plan not stated $599.46K 6.3%
22 Mar 2021 MacPherson Richard
President and CEO
Bought $28.75K 0.3%
25 Aug 2017 Greenberg Christopher
Chairman of the Board
Bought $9.87K 100%
25 Aug 2017 Grantham Allan T
Director
Bought $1.90K 0.5%