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.
Q3 2025 vs. Q2 2025
How the institutions holding Birchtech Corp. changed between Q2 2025 and Q3 2025.
All holders in Q3 2025All holders in Q2 2025
| Measure | Q2 2025 | Q3 2025 | Change |
|---|---|---|---|
| Holders | 1 | 2 | +1 |
| Shares | 131.0K | 212.6K | +81.6K (+62.3%) |
| Value | $88.4K | $154.0K | +$65.5K (+74.1%) |
New holders (1)
Institutions that held Birchtech Corp. at the end of Q3 2025 but not at the end of Q2 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| FNY Investment Advisers, LLC | 81,600 | $59.0K | 0.02% |
Sold out (0)
Institutions that held Birchtech Corp. at the end of Q2 2025 and filed for Q3 2025 without it.
None.