Birchtech Corp. · AMEX:BCHT
Birchtech Corp. shareholders
As of Jun 30, 2026, 26 institutions reported holding Birchtech Corp., 17.3% of its shares. Largest: Heartland Advisors Inc, Vanguard and Ancora Advisors LLC. New holders, exits, insiders and big stakes, each with its filing.
| Holder | Shares | % of Birchtech Corp. | Change | Filed |
|---|---|---|---|---|
| Heartland Advisors Inc | 1M | 3.8% | no change | Aug 11, 2026 |
| Vanguard | 825K | 3.1% | new | Aug 13, 2026 |
| Ancora Advisors LLC | 700K | 2.7% | +272K | Aug 14, 2026 |
| Chapin Davis, Inc. | 687K | 2.6% | no change | Jul 7, 2026 |
| Aristides Capital LLC | 425K | 1.6% | no change | Aug 13, 2026 |
| White Pine Capital LLC | 330K | 1.3% | +40,981 | Aug 5, 2026 |
| Geode Capital | 139K | 0.53% | new | Aug 12, 2026 |
| BlackRock | 71,250 | 0.27% | new | Aug 7, 2026 |
| ARS Investment Partners, LLC | 64,200 | 0.24% | +13,100 | Jul 9, 2026 |
| Diametric Capital, LP | 52,954 | 0.20% | +11,269 | Aug 14, 2026 |