Birchtech Corp.: which funds bought and sold
Institutions that bought and sold Birchtech shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 15 institutions that filed 13F reports for both quarters added to or opened positions in Birchtech, and 7 cut or closed them. Together they added a net 697K shares, +22.1% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 9,609 shares (−18.8%); index fund managers were net buyers of 1.1M shares. 9 opened a new position and 5 sold out entirely.
Bought, Q2 2026 15 institutions, 9 of them new holders Sold, Q2 2026 7 institutions, 5 of them sold out
Net change, all compared +697K shares (+22.1%)
Net change, active managers −9,609 shares (−18.8%), 0 bought, 1 sold
Buyers versus sellers
15 bought 9 7 sold
Active managers and hedge funds 0 bought · 1 sold · −9,609
Index fund managers 5 bought · 0 sold · +1.1M
Other institutions 10 bought · 6 sold · −376K
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Vanguard Capital Management LLC Index funds | +721K New position | 721K | $1.5M |
| Geode Capital Management, LLC Index funds | +139K New position | 139K | $285,343 |
| Vanguard Fiduciary Trust Co Index funds | +104K New position | 104K | $212,517 |
| Blackrock, Inc. Index funds | +71K New position | 71K | $146,063 |
| Northern Trust Corp Index funds | +48K New position | 48K | $97,488 |
| Corient Private Wealth LP | +22K New position | 22K | $44,165 |
| Crewe Advisors LLC | +19K +114.5% | 36K | $72,980 |
| Ars Investment Partners, LLC | +13K +25.6% | 64K | $131,610 |
| Diametric Capital, LP | +11K +27.0% | 53K | $104,730 |
| UBS Group AG | +8,207 +112.3% | 16K | $31,802 |
| Persistent Asset Partners Ltd | +3,094 New position | 3,094 | $6,121 |
| Royal Bank Of Canada | +506 New position | 506 | $1,000 |
| National Bank Of Canada | +83 +1.7% | 4,882 | $11,978 |
| Barclays PLC | +2 New position | 2 | $4 |
| Caitong International Asset Management Co., Ltd | +1 +11.1% | 10 | $20 |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| None of the active managers on our list. | |||
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| White Pine Capital LLC | −311K −48.5% | 330K | $676,816 |
| Focus Partners Wealth | −43K Sold out | 0 | — |
| HRT Financial LP | −34K Sold out | 0 | — |
| Mink Brook Asset Management LLC | −30K Sold out | 0 | — |
| Gts Securities LLC | −25K Sold out | 0 | — |
| Prelude Capital Management, LLC | −10K Sold out | 0 | — |
| Citadel Advisors LLC Hedge fund | −9,609 −18.8% | 41K | $84,839 |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Citadel Advisors LLC Hedge fund | −9,609 −18.8% | 41K | $84,839 |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Vanguard Capital Management LLCIndex funds | 721K | $1.5M |
| Geode Capital Management, LLCIndex funds | 139K | $285,343 |
| Vanguard Fiduciary Trust CoIndex funds | 104K | $212,517 |
| Blackrock, Inc.Index funds | 71K | $146,063 |
| Northern Trust CorpIndex funds | 48K | $97,488 |
| Corient Private Wealth LP | 22K | $44,165 |
| Persistent Asset Partners Ltd | 3,094 | $6,121 |
| Royal Bank Of Canada | 506 | $1,000 |
| Barclays PLC | 2 | $4 |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Focus Partners Wealth | 43K | $81,130 |
| HRT Financial LP | 34K | $64,000 |
| Mink Brook Asset Management LLC | 30K | $57,000 |
| Gts Securities LLC | 25K | $47,943 |
| Prelude Capital Management, LLC | 10K | $19,716 |
Who holds the shares
- Institutions reporting
- 26
- Ten largest holders
- 93.3% of 13F-reported shares
- Index fund managers
- 28.1% of 13F-reported shares
- Active managers and hedge funds
- 1.1% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 0 | 1 | 0 | 0 | −9,609 | −18.8% |
| Index fund managers | 5 | 0 | 5 | 0 | +1.1M | — |
| Other institutions | 10 | 6 | 4 | 5 | −376K | −12.1% |