Silverbox Corp. IV-A- 29SBXWFPreferred / convertible
13F holders, Q2 2026 (June 30)29holders +1
1new positions
0sold out
$0.15avg. 13F price*
At the end of Q2 2026, 29 institutions reported holding Silverbox Corp. IV-A- 29 (SBXWF) in their 13F filings, up 1 from Q1 2026. 1 opened new positions and 0 sold out. The largest holders were Healthcare of Ontario Pension Plan Trust Fund ($107K), Polar Asset Management Partners Inc. ($106K) and Linden Advisors LP ($90K).
- Company
- Silverbox Corp. IV-A- 29
- CUSIP
- G81354121
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 1 | $225 |
| Exits | 0 | $0 |
All 13F filers, Q1 2026 → Q2 2026: 37,603 shares bought and 9,782 shares sold, net +27,821 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 29 holders
| Healthcare of Ontario Pension Plan Trust Fund | — | No change | 666,666 | $107K |
| Polar Asset Management Partners Inc. | — | No change | 660,000 | $106K |
| Linden Advisors LP | — | No change | 666,667 | $90K |
| Sculptor Capital LP | — | No change | 469,900 | $75K |
| AQR Arbitrage LLC | — | Add +0.6% | 531,111 | $72K |
| MMCAP International Inc. SPC | — | No change | 326,666 | $52K |
| Aristeia Capital, L.L.C. | — | No change | 368,485 | $50K |
| BNP Paribas Financial Markets | — | No change | 214,539 | $34K |
| Picton Mahoney Asset Management | — | No change | 203,326 | $33K |
| Shaolin Capital Management LLC | — | Add +1.0% | 201,633 | $32K |
| Calamos Advisors LLC | — | No change | 166,666 | $27K |
| LMR Partners LLP | — | No change | 166,666 | $27K |
| Walleye Capital LLC | — | No change | 164,542 | $26K |
| DLD Asset Management, LP | — | No change | 150,235 | $24K |
| Magnetar Financial LLC | — | Reduce -2.5% | 146,684 | $23K |
| CSS LLC | — | No change | 132,521 | $21K |
| Context Capital Management, LLC | — | No change | 104,317 | $17K |
| Moore Capital Management, LP | — | No change | 83,333 | $13K |
| Parallax Volatility Advisers, L.P. | — | No change | 78,848 | $13K |
| Wealthspring Capital LLC | — | No change | 77,152 | $12K |
| Rivernorth Capital Management, LLC | — | No change | 99,999 | $12K |
| Gritstone Asset Management LLC | — | No change | 73,411 | $12K |
| Periscope Capital Inc. | — | No change | 70,000 | $11K |
| Saba Capital Management, L.P. | — | No change | 67,710 | $9K |
| Bulldog Investors, LLP | — | Reduce -1.4% | 57,285 | $9K |
| Clear Street Group Inc. | — | Reduce -0.2% | 48,300 | $8K |
| StoneX Group Inc. | — | Add +199.3% | 46,151 | $7K |
| Toronto Dominion Bank | — | Reduce -11.0% | 41,080 | $7K |
| Arax Advisory Partners | — | New | 1,407 | $225 |
"% of holder's portfolio" is SBXWF's weight in each manager's 13F, not the share of Silverbox Corp. IV-A- 29 the manager owns.