Silverbox Corp. IV-ASBXDF
13F holders, Q4 2025 (December 31)At the end of Q4 2025, 46 institutions reported holding Silverbox Corp. IV-A (SBXDF) in their 13F filings, down 4 from Q3 2025. 6 opened new positions and 12 sold out. The largest holders were Linden Advisors LP ($21.2M), Mizuho Securities USA LLC ($17.3M) and Polar Asset Management Partners Inc. ($14.6M). 3 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Silverbox Corp. IV-A
- CUSIP
- G81354105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 6 | $18.4M |
| Exits | 12 | $33.5M |
All 13F filers, Q3 2025 → Q4 2025: 4,554,744 shares bought and 4,219,126 shares sold, net +335,618 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 46 holders
| Linden Advisors LP | 1.60% | No change | 2,000,000 | $21.2M |
| Mizuho Securities USA LLC | 0.29% | Add +461.2% | 1,645,673 | $17.3M |
| Polar Asset Management Partners Inc. | 0.38% | Reduce -6.8% | 1,380,000 | $14.6M |
| AQR Arbitrage LLC | 0.38% | No change | 1,347,002 | $14.3M |
| Berkley W R Corp. | 0.73% | Add +607.8% | 1,211,674 | $12.8M |
| D. E. Shaw & Co. | 0.01% | No change | 989,397 | $10.5M |
| MMCAP International Inc. SPC | 1.05% | No change | 980,000 | $10.4M |
| Wolverine Asset Management LLC | 0.60% | Add +44.5% | 972,109 | $10.3M |
| Picton Mahoney Asset Management | 0.10% | No change | 824,899 | $8.7M |
| Governors Lane LP | 0.74% | No change | 753,177 | $8.0M |
| Crossingbridge Advisors, LLC | 4.00% | New | 637,732 | $6.7M |
| Goldman Sachs Group Inc. | 0.00% | No change | 606,254 | $6.4M |
| RiverPark Advisors, LLC | 3.21% | New | 587,732 | $6.2M |
| Magnetar Financial LLC | 0.06% | No change | 520,823 | $5.5M |
| LMR Partners LLP | 0.07% | No change | 500,000 | $5.3M |
| Calamos Advisors LLC | 0.03% | No change | 500,000 | $5.3M |
| First Trust Capital Management L.P. | 0.29% | No change | 445,168 | $4.7M |
| Aristeia Capital, L.L.C. | 0.18% | New | 336,123 | $3.6M |
| Westchester Capital Management, LLC | 0.16% | No change | 325,485 | $3.4M |
| Rivernorth Capital Management, LLC | 0.15% | No change | 299,997 | $3.2M |
| Context Capital Management, LLC | 0.93% | No change | 262,951 | $2.8M |
| Moore Capital Management, LP | 0.06% | No change | 250,000 | $2.6M |
| Radcliffe Capital Management, L.P. | 0.34% | Add +28.2% | 227,454 | $2.4M |
| Shaolin Capital Management LLC | 0.31% | Add +14.3% | 225,000 | $2.4M |
| Wealthspring Capital LLC | 0.53% | Reduce -1.1% | 208,849 | $2.2M |
| Millennium Management | 0.00% | No change | 200,000 | $2.1M |
| Periscope Capital Inc. | 0.40% | Reduce -6.8% | 186,353 | $2.0M |
| Toronto Dominion Bank | 0.00% | Reduce -83.2% | 158,057 | $1.7M |
| Mangrove Partners Im, LLC | 0.14% | No change | 156,622 | $1.7M |
| Quarry LP | 0.26% | New | 141,597 | $1.5M |
| Creek Drive Management Group LLC | 1.10% | — | 140,000 | $1.5M |
| HRT Financial LP | 0.00% | Add +19.0% | 139,195 | $1.5M |
| DLD Asset Management, LP | 0.44% | Add +1.2% | 121,473 | $1.3M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.00% | No change | 99,998 | $1.1M |
| Massar Capital Management, LP | 0.20% | No change | 94,600 | $1.0M |
| Meteora Capital, LLC | 0.06% | Reduce -53.3% | 70,000 | $741K |
| Lineage Point Capital LP | 0.20% | — | 50,042 | $529K |
| JPMorgan Chase & Co. | 0.00% | No change | 50,000 | $529K |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | 0.01% | No change | 47,830 | $506K |
| Clear Street Group Inc. | 0.00% | Add +199.2% | 29,915 | $317K |
| Glazer Capital, LLC | 0.01% | Add +3.9% | 20,780 | $220K |
| Schonfeld Strategic Advisors LLC | 0.00% | New | 19,355 | $205K |
| Two Sigma Securities, LLC | 0.03% | New | 17,330 | $183K |
| Citadel Advisors | 0.00% | Reduce -77.2% | 10,631 | $112K |
| UBS Group AG | 0.00% | Reduce -83.5% | 2,218 | $23K |
| FNY Investment Advisers, LLC | 0.00% | Reduce -13.0% | 87 | $0 |
"% of holder's portfolio" is SBXDF's weight in each manager's 13F, not the share of Silverbox Corp. IV-A the manager owns.