SilverBox Corp IV
SBXD- Exchange
- NYSE
- Industry
- Blank Checks
- SEC CIK
- 0002015947
No open-market purchases or sales by SilverBox Corp IV insiders were filed in the last 90 days; 49 institutions reported holding it in 13F filings for Q2 2026, worth $221.7M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in SilverBox Corp IV as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 46
- +1 vs. Q4 2025
- Shares held
- 20.2M
- +487.6K (+2.5%) vs. Q4 2025
- Total value
- $216.4M
- +$7.66M (+3.7%) vs. Q4 2025
- New holders
- 6
- 10 more added
- Sold out
- 5
- 9 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting SBXD on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 49 | $221.7M |
| Q1 2026 | 46 | $216.4M |
| Q4 2025 | 46 | $209.3M |
| Q3 2025 | 50 | $201.7M |
| Q2 2025 | 49 | $212.9M |
| Q1 2025 | 35 | $194.4M |
| Q4 2024 | 25 | $148.5M |
| Q3 2024 | 0 | $0 |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding SilverBox Corp IV; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FNY Investment Advisers, LLC | 37 | $0 | 0.00% | −50−57.5% | Reduced |
| National Bank of Canada | 64 | $672 | 0.00% | +64 | New |
| UBS Group AG | 1,482 | $15.9K | 0.00% | −736−33.2% | Reduced |
| BNP Paribas Arbitrage, SA | 9,322 | $99.7K | 0.00% | +9,322 | New |
| Citadel Advisors LLC | 10,964 | $117.3K | 0.00% | +333+3.1% | Added |
| Jane Street Group, LLC | 14,712 | $157.4K | 0.00% | +14,712 | New |
| Glazer Capital, LLC | 21,369 | $229.0K | 0.00% | +589+2.8% | Added |
| Clear Street Group Inc. | 29,915 | $320.1K | 0.00% | 00.0% | Unchanged |
| Lineage Point Capital LP | 50,042 | $535.4K | 0.13% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 50,000 | $535.5K | 0.00% | 00.0% | Unchanged |
| Highbridge Capital Management LLC | 51,964 | $556.5K | 0.04% | +51,964 | New |
| Meteora Capital, LLC | 53,219 | $569.4K | 0.04% | −16,781−24.0% | Reduced |
| Massar Capital Management, LP | 94,600 | $1.01M | 0.20% | 00.0% | Unchanged |
| HRT Financial LP | 116,551 | $1.25M | 0.00% | −22,644−16.3% | Reduced |
| DLD Asset Management, LP | 121,073 | $1.30M | 0.13% | −400−0.3% | Reduced |
| Periscope Capital Inc. | 125,000 | $1.34M | 0.23% | −61,353−32.9% | Reduced |
| Quarry LP | 141,597 | $1.52M | 0.31% | 00.0% | Unchanged |
| Verition Fund Management LLC | 145,142 | $1.55M | 0.02% | +145,142 | New |
| Mangrove Partners | 156,622 | $1.68M | 0.14% | 00.0% | Unchanged |
| Toronto Dominion Bank | 175,100 | $1.87M | 0.00% | +17,043+10.8% | Added |
| Millennium Management LLC | 200,000 | $2.14M | 0.00% | 00.0% | Unchanged |
| Wealthspring Capital LLC | 207,565 | $2.22M | 0.53% | −1,284−0.6% | Reduced |
| Radcliffe Capital Management, L.P. | 227,454 | $2.43M | 0.18% | 00.0% | Unchanged |
| Moore Capital Management, LP | 250,000 | $2.67M | 0.10% | 00.0% | Unchanged |
| Context Capital Management, LLC | 262,951 | $2.81M | 0.07% | 00.0% | Unchanged |
| Shaolin Capital Management LLC | 279,849 | $2.99M | 0.13% | +54,849+24.4% | Added |
| Rivernorth Capital Management, LLC | 299,997 | $3.21M | 0.16% | 00.0% | Unchanged |
| RLH Capital LLC | 304,320 | $3.26M | 1.65% | +304,320 | New |
| Westchester Capital Management, LLC | 325,485 | $3.48M | 0.17% | 00.0% | Unchanged |
| Aristeia Capital LLC | 336,123 | $3.60M | 0.08% | 00.0% | Unchanged |
| Vivaldi Asset Management, LLC | 445,168 | $4.76M | 0.25% | 00.0% | Unchanged |
| Calamos Advisors LLC | 500,000 | $5.35M | 0.02% | 00.0% | Unchanged |
| LMR Partners LLP | 500,000 | $5.35M | 0.05% | 00.0% | Unchanged |
| Magnetar Financial LLC | 520,823 | $5.58M | 0.06% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 606,166 | $6.49M | 0.00% | −880.0% | Reduced |
| RiverPark Advisors, LLC | 678,613 | $7.26M | 2.63% | +90,881+15.5% | Added |
| Picton Mahoney Asset Management | 824,899 | $8.83M | 0.09% | 00.0% | Unchanged |
| Crossingbridge Advisors, LLC | 977,013 | $10.5M | 1.89% | +339,281+53.2% | Added |
| MMCAP International Inc. SPC | 980,000 | $10.5M | 0.91% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 989,397 | $10.6M | 0.01% | 00.0% | Unchanged |
| Wolverine Asset Management LLC | 993,817 | $10.6M | 0.17% | +21,708+2.2% | Added |
| CNH Partners LLC | 1,335,376 | $14.3M | 0.23% | −11,626−0.9% | Reduced |
| Polar Asset Management Partners Inc. | 1,508,005 | $16.1M | 0.38% | +128,005+9.3% | Added |
| Berkley W R Corp | 1,514,573 | $16.2M | 0.87% | +302,899+25.0% | Added |
| Mizuho Securities USA LLC | 1,796,947 | $19.2M | 0.45% | +151,274+9.2% | Added |
| Linden Advisors LP | 2,000,000 | $21.4M | 0.12% | 00.0% | Unchanged |
| Governors Lane LP | 0 | $0 | 0.00% | −753,177−100.0% | Sold out |
| Creek Drive Management Group LLC | 0 | $0 | 0.00% | −140,000−100.0% | Sold out |
| Healthcare of Ontario Pension Plan Trust Fund | 0 | $0 | 0.00% | −99,998−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −19,355−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −17,330−100.0% | Sold out |
| UBS Oconnor LLC | – | – | – | – | Not filed |