Burtech Acquisition -CW23BZAIWPreferred / convertible
13F holders, Q4 2025 (December 31)20holders −3
1new positions
4sold out
1famous investor
$0.39avg. 13F price*
At the end of Q4 2025, 20 institutions reported holding Burtech Acquisition -CW23 (BZAIW) in their 13F filings, down 3 from Q3 2025. 1 opened new positions and 4 sold out. The largest holders were Calamos Advisors LLC ($371K), Caption Management, LLC ($359K) and D. E. Shaw & Co. ($333K). One famous investor held it David E. Shaw ( of D. E. Shaw & Co.'s portfolio).
- Company
- Burtech Acquisition -CW23
- Filed as
- BLAIZE HLDGS INC (Q4 2025)
- CUSIP
- 092915115
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 1 | $180 |
| Exits | 4 | $589K |
All 13F filers, Q3 2025 → Q4 2025: 1,102,114 shares bought and 1,366,124 shares sold, net −264,010 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 20 holders
| Calamos Advisors LLC | — | No change | 1,000,000 | $371K |
| Caption Management, LLC | — | Add +87.6% | 898,556 | $359K |
| D. E. Shaw & Co. | — | No change | 900,000 | $333K |
| Saba Capital Management, L.P. | — | Reduce -11.7% | 874,225 | $332K |
| MMCAP International Inc. SPC | — | No change | 750,000 | $300K |
| LMR Partners LLP | — | No change | 615,000 | $246K |
| Aristeia Capital, L.L.C. | — | Add +155.6% | 514,598 | $195K |
| Hudson Bay Capital Management LP | — | Add +37.7% | 455,888 | $182K |
| Wolverine Asset Management LLC | — | Add +153.5% | 402,909 | $161K |
| Sculptor Capital LP | — | Reduce -10.5% | 223,724 | $85K |
| Whitebox Advisors LLC | — | No change | 209,250 | $84K |
| Clear Street Group Inc. | — | Reduce -30.9% | 201,429 | $81K |
| Q Global Advisors, LLC | — | Reduce -40.0% | 150,000 | $60K |
| Creative Planning | — | No change | 134,700 | $54K |
| Apollon Wealth Management, LLC | — | Reduce -4.7% | 100,500 | $40K |
| Ionic Capital Management LLC | — | Reduce -29.4% | 84,427 | $34K |
| Rpo LLC | — | No change | 45,520 | $18K |
| Shaolin Capital Management LLC | — | Reduce -42.9% | 40,000 | $16K |
| Yakira Capital Management, Inc. | — | Reduce -36.2% | 26,439 | $11K |
| UBS Group AG | — | New | 449 | $180 |
"% of holder's portfolio" is BZAIW's weight in each manager's 13F, not the share of Burtech Acquisition -CW23 the manager owns.