Security key
59833H200
- Security type / class
- Equity / COM SHS
- Total 13F shares
- 3,294,533
- Total 13F value
- $6,258,920
- Share change
- +3,195,449
- SEC-reported price per share
- $1.90
- Number of holders
- 23
- Value change
- +$6,070,660
- Number of buys
- 22
- Number of sells
- 1
Report period
Q1 2026
Institutions
23
Top holders
10
BCHT full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
Previous quarter: Q4 2025
Birchtech Corp. SEC filings
Birchtech Corp. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 59833H200
Recent filing periods:
Ownership snapshot
Top reported holders of BCHT - Birchtech Corp. - COM SHS (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Richard MacPherson
Disclosed value leader
Richard MacPherson
Comparable rows
0/12
Latest evidence
27 Feb 2026
3/4/5
13F
Highest disclosed value: $12,343,541
12 rows are not safely comparable across share classes.
Showing 1-6 of 12 holder rows.
Quick read
Richard MacPherson has the largest disclosed position value at $12.34M.
0 of 12 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Richard MacPherson's linked filing trail.
Disclosed position value
Top 5
Richard MacPherson
$12.34M
Christopher Greenberg
$5.38M
John Pavlish
$2.01M
David M. Kaye
$345.8K
Ancora Advisors LLC
$198.3K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 12 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Richard MacPherson |
3/4/5
President and CEO, Director, 10%+ Owner
|
—
class O/S missing
|
$12,343,541
2,955,095 shares
|
— | 27 Feb 2026 |
| Alterna Core Capital Assets Fund II, L.P. |
3/4/5
10%+ Owner
|
—
class O/S missing
|
—
11,700,000 shares
|
— | 28 Oct 2022 |
| Christopher Greenberg |
3/4/5
Chairman of the Board, Director
|
—
mixed-class rows
|
$5,377,314
5,630,533 shares
mixed-class rows
|
— | 15 Jan 2024 |
| John Pavlish |
3/4/5
Senior VP/Chief Tech Officer
|
—
mixed-class rows
|
$2,007,475
2,398,528 shares
mixed-class rows
|
— | 11 Dec 2025 |
| David M. Kaye |
3/4/5
Director
|
—
class O/S missing
|
$345,786
370,142 shares
|
— | 12 Dec 2025 |
| Ancora Advisors LLC |
13F
Company
|
—
class O/S missing
|
$198,315
52,884 shares
|
— | 31 Dec 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
23
Shares
3,294,533
Rows available
23
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
2
Q1 2026 holders
23
Holder diff
21
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend