Birchtech (BCHT)
Supplies activated-carbon systems for utility mercury control and water treatment.
$1.71
vs last close−0.03 (−1.72%)
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13F · 13D/G · Form 4
| Institutions | 17.30% | 4.55M shares | |
|---|---|---|---|
| 27 holders · as of Jun 30, 2026 | |||
| Other | 82.70% | 21.75M shares | |
| remainder | |||
26.31M company shares as of Aug 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
13F, as of Jun 30, 2026
27 holders · 4.55M shares · 9 new positions · 16 increased · 2 reduced · 5 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Heartland Advisors Inc | 1.00M | 3.80% | 0 | Aug 11, 2026 |
| Vanguard Capital Management LLC | 721.2K | 2.74% | +721.2Knew | Aug 13, 2026 |
| Ancora Advisors, LLC | 700.2K | 2.66% | +271.6K | Aug 14, 2026 |
| Chapin Davis, Inc. | 686.7K | 2.61% | 0 | Jul 7, 2026 |
| Aristides Capital LLC | 425.0K | 1.62% | 0 | Aug 13, 2026 |
| White Pine Capital LLC | 330.2K | 1.26% | −21.7K | Aug 5, 2026 |
| Geode Capital Management, LLC | 139.2K | 0.53% | +139.2Knew | Aug 12, 2026 |
| Vanguard Fiduciary Trust Co | 103.7K | 0.39% | +103.7Knew | Aug 13, 2026 |
13D/G · 5% or more, as filed
No 13D/G filer at 5% or more on record.
Form 4
Latest trades
Nothing filed in the last 12 months.
House and Senate disclosures
Not reported.