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Birchtech Corp.

BCHT Net buying
CIK 0000728385 #4842 in the set updated 19 Sep 2026
Bought (120 mo)
$2.84M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$599.46K
$0.00 on a plan · $0.00 straight out of an exercise
Sold at will
$599.46K
1 of 1 sales
Net
+$2.24M
+$2.24M against sales at will

By person

8 insiders · 55 transactions
7.0×

Richard MacPherson holds 7.0 times base salary in stock. $7.09M of shares against $1.00M in salary for 2025.

Salary from the company's own proxy. The shares are what Richard MacPherson last reported holding, valued at $2.40, the price Common Stock was last bought or sold at on the open market here, on 27 Feb 2026.

Insider
Role
Bought
Sold
Net
Holding
Worth
Change
Alterna Core Capital Assets Fund II, L.P. entity
10% owner
$2.04M (1)
+$2.04M
11,700,000
$28.08M
+127.0%
MacPherson Richard
President and CEO
$778.75K (2)
$599.46K (1)
+$179.29K
2,955,095
$7.09M
+342.7%
Greenberg Christopher
Chairman of the Board
$22.90K (4)
+$22.90K
5,480,533
$13.15M
+165.7%
Grantham Allan T
Former Director
$1.90K (1)
+$1.90K
1,357,778
$3.26M
+20.9%
Pavlish John
Senior VP/Chief Tech Officer
2,198,528
$5.28M
+134.4%
Kaye David M
Director
370,142
$888.34K
Van Zijl Frederick
Former Director
235,184
$564.44K
Grant Troy J
Director
200,000
$480.00K
+33.3%

No percentages here. This company's share count has moved by a factor of 3.7 over the window, from 26,305,966 to 96,866,109 shares. A split, a merger or a large issue changes what the company is, and a holding measured at one point in that run is not a fraction of it at another.

Insider
Date
Role
Action
Shares
Price
Amount
MacPherson Richard
12 Dec 2025
President and CEO
Exercised, kept
500,000
$0.58
$290.00K
Kaye David M
12 Dec 2025
Director
Exercised, kept
250,000
$0.58
$145.00K
Pavlish John
11 Dec 2025
Senior VP/Chief Tech Officer
Exercised, kept
300,000
$0.58
$174.00K
MacPherson Richard
20 Jun 2025
President and CEO
Exercised, kept
500,000
$0.19
$95.00K
Pavlish John
20 Jun 2025
Senior VP/Chief Tech Officer
Exercised, kept
500,000
$0.19
$95.00K
MacPherson Richard
24 Jun 2024
President and CEO
Exercised, kept
1,500,000
$0.27
$405.00K
Pavlish John
24 Jun 2024
Senior VP/Chief Tech Officer
Exercised, kept
600,000
$0.27
$162.00K
Pavlish John
24 Jun 2024
Senior VP/Chief Tech Officer
Exercised, kept
1,000,000
$0.45
$450.00K
Pavlish John
11 Dec 2023
Senior VP/Chief Tech Officer
Exercised, kept
13,750
$0.25
$3.44K
Kaye David M
11 Dec 2023
Director
Exercised, kept
6,250
$0.25
$1.56K
Pavlish John
30 Nov 2023
Senior VP/Chief Tech Officer
Exercised, kept
13,750
$0.33
$4.54K
Kaye David M
30 Nov 2023
Director
Exercised, kept
6,250
$0.33
$2.06K
MacPherson Richard
31 Oct 2023
President and CEO
Exercised, kept
16,458
$0.20
$3.29K
Pavlish John
31 Oct 2023
Senior VP/Chief Tech Officer
Exercised, kept
13,750
$0.20
$2.75K
Kaye David M
31 Oct 2023
Director
Exercised, kept
6,250
$0.20
$1.25K
Kaye David M
29 Sep 2023
Director
Exercised, kept
6,250
$0.26
$1.63K
MacPherson Richard
29 Sep 2023
President and CEO
Exercised, kept
16,458
$0.26
$4.28K
Pavlish John
29 Sep 2023
Senior VP/Chief Tech Officer
Exercised, kept
13,750
$0.26
$3.58K
MacPherson Richard
28 Jul 2023
President and CEO
Exercised, kept
16,458
$0.17
$2.80K
Pavlish John
28 Jul 2023
Senior VP/Chief Tech Officer
Exercised, kept
13,750
$0.17
$2.34K
Kaye David M
28 Jul 2023
Director
Exercised, kept
6,250
$0.17
$1.06K
Pavlish John
28 Jun 2023
Senior VP/Chief Tech Officer
Exercised, kept
13,750
$0.21
$2.89K
Kaye David M
28 Jun 2023
Director
Exercised, kept
6,250
$0.21
$1.31K
MacPherson Richard
28 Jun 2023
President and CEO
Exercised, kept
16,458
$0.21
$3.46K
MacPherson Richard
28 Jun 2023
President and CEO
Exercised, kept
8,229
$0.29
$2.39K
Kaye David M
7 Jun 2023
Secretary
Exercised, kept
6,250
$0.29
$1.81K
Pavlish John
5 Jun 2023
Senior VP/Chief Tech Officer
Exercised, kept
6,875
$0.29
$1.99K
Pavlish John
20 Feb 2023
Senior VP/Chief Tech Officer
Exercised, kept
50,000
$0.27
$13.50K
Greenberg Christopher
1 Feb 2023
Chairman of the Board
Exercised, kept
250,000
$0.19
$47.50K
Greenberg Christopher
1 Feb 2023
Chairman of the Board
Exercised, kept
600,000
$0.27
$162.00K
MacPherson Richard
1 Feb 2023
President and CEO
Exercised, kept
250,000
$0.28
$70.00K
Kaye David M
1 Feb 2023
Secretary
Exercised, kept
250,000
$0.19
$47.50K
Greenberg Christopher
15 Nov 2022
Chairman of the Board
Exercised, kept
8,333
$0.25
$2.08K
Greenberg Christopher
15 Nov 2022
Chairman of the Board
Exercised, kept
8,333
$0.33
$2.75K
Greenberg Christopher
15 Nov 2022
Chairman of the Board
Exercised, kept
8,333
$0.20
$1.67K
Greenberg Christopher
15 Nov 2022
Chairman of the Board
Exercised, kept
8,333
$0.26
$2.17K
Greenberg Christopher
15 Nov 2022
Chairman of the Board
Exercised, kept
8,333
$0.25
$2.08K
Greenberg Christopher
15 Nov 2022
Chairman of the Board
Exercised, kept
8,333
$0.17
$1.42K
Greenberg Christopher
15 Nov 2022
Chairman of the Board
Exercised, kept
8,333
$0.21
$1.75K
Greenberg Christopher
15 Nov 2022
Chairman of the Board
Exercised, kept
8,333
$0.29
$2.42K
Greenberg Christopher
15 Nov 2022
Chairman of the Board
Exercised, kept
150,000
$0.28
$42.00K
Greenberg Christopher
29 Jun 2021
Chairman of the Board
Exercised, kept
125,000
$0.81
$101.25K
Greenberg Christopher
1 May 2021
Chairman of the Board
Exercised, kept
25,000
$0.42
$10.50K
Greenberg Christopher
27 Jan 2021
Chairman of the Board
Exercised, kept
2,000,000
$0.23
$460.00K
Alterna Core Capital Assets Fund II, L.P.
29 Nov 2016
10% owner
Exercised, kept indirect
1,751,701
$0.35
$613.10K
Alterna Core Capital Assets Fund II, L.P.
29 Nov 2016
10% owner
Exercised, kept indirect
8,248,299
$0.50
$4.12M

What was left out

Form 4 filings counted 143
Amendments (4/A) skipped 1
Filings about a different issuer 0
Unreadable filings 0
Joint filings 3
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 0
Sales at will 1
Transactions with no price 0
Shares from compensation/vesting 33,092,429
Sales filed before the plan box existed 1
History held since 2 Sep 2016