SILVERBOX CORP IV (SBXD)
Institutional ownership reported to the SEC as of Q2 2026, across 7 quarters.
46
Reporting holders
$237.4M
Reported value
0.0%
Held as options
+3
Holder change
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| MIZUHO SECURITIES USA LLC | $39.0M | 3,637,389 | 0.37% | 4q | +102.4%+$19.7M |
| Linden Advisors LP | $21.6M | 2,000,000 | 0.11% | 7q | HELD |
| BERKLEY W R CORP | $20.9M | 1,930,127 | 0.99% | 7q | +27.4%+$4.5M |
| Polar Asset Management Partners Inc. | $16.3M | 1,508,005 | 0.27% | 7q | HELD |
| AQR Arbitrage LLC | $10.9M | 1,012,401 | 0.16% | 7q | -24.2%-$3.5M |
| WOLVERINE ASSET MANAGEMENT LLC | $10.7M | 993,816 | 0.09% | 6q | HELD |
| D. E. Shaw & Co., Inc. | $10.7M | 989,397 | 0.01% | 7q | HELD |
| MMCAP International Inc. SPC | $10.6M | 980,000 | 0.90% | 6q | HELD |
| Crossingbridge Advisors, LLC | $10.0M | 928,613 | 1.77% | 3q | -5.0%-$523.2K |
| PICTON MAHONEY ASSET MANAGEMENT | $8.9M | 824,899 | 0.07% | 7q | HELD |
| RiverPark Advisors, LLC | $7.3M | 678,613 | 3.35% | 3q | HELD |
| GOLDMAN SACHS GROUP INC | $6.6M | 606,074 | 0.00% | 7q | HELD |
| Magnetar Financial LLC | $5.6M | 520,823 | 0.05% | 5q | HELD |
| Calamos Advisors LLC | $5.4M | 500,000 | 0.02% | 6q | HELD |
| LMR Partners LLP | $5.4M | 500,000 | 0.02% | 7q | HELD |
| First Trust Capital Management L.P. | $4.8M | 445,168 | 0.28% | 5q | HELD |
| ARISTEIA CAPITAL, L.L.C. | $3.6M | 336,123 | 0.05% | 3q | HELD |
| Westchester Capital Management, LLC | $3.5M | 325,485 | 0.17% | 6q | HELD |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | $3.2M | 299,997 | 0.15% | 7q | HELD |
| Context Capital Management, LLC | $2.8M | 262,951 | 0.06% | 6q | HELD |
| MOORE CAPITAL MANAGEMENT, LP | $2.7M | 250,000 | 0.04% | 6q | HELD |
| TORONTO DOMINION BANK | $2.7M | 246,374 | 0.00% | 6q | +40.7%+$770.5K |
| Shaolin Capital Management LLC | $2.6M | 241,138 | 0.12% | 5q | -13.8%-$418.5K |
| Radcliffe Capital Management, L.P. | $2.5M | 227,454 | 0.19% | 5q | HELD |
| RLH Capital LLC | $2.3M | 210,093 | 1.09% | 2q | -31.0%-$1.0M |
| Wealthspring Capital LLC | $2.2M | 207,565 | 0.50% | 7q | HELD |
| MILLENNIUM MANAGEMENT LLC | $2.2M | 200,000 | 0.00% | 7q | HELD |
| Quarry LP | $2.2M | 200,000 | 0.18% | 3q | +41.2%+$631.3K |
| MANGROVE PARTNERS IM, LLC | $1.7M | 156,622 | 0.11% | 4q | HELD |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | $1.7M | 154,587 | 0.04% | 2q | +197.5%+$1.1M |
| Meteora Capital, LLC | $1.5M | 139,311 | 0.12% | 4q | +161.8%+$930.7K |
| Massar Capital Management, LP | $1.0M | 94,600 | 0.10% | 5q | HELD |
| Periscope Capital Inc. | $810.8K | 75,000 | 0.07% | 7q | -40.0%-$540.5K |
| JPMORGAN CHASE & CO | $541.0K | 50,000 | 0.00% | 5q | HELD |
| Lineage Point Capital LP | $541.0K | 50,042 | 0.11% | 3q | HELD |
| DLD Asset Management, LP | $540.5K | 50,000 | 0.04% | 6q | -58.7%-$768.3K |
| StoneX Group Inc. | $524.9K | 48,554 | 0.02% | new | NEW |
| Clear Street Group Inc. | $322.3K | 29,815 | 0.00% | 4q | HELD |
| Alyeska Investment Group, L.P. | $266.6K | 24,500 | 0.00% | new | NEW |
| JANE STREET GROUP, LLC | $179.7K | 16,620 | 0.00% | 2q | +13.0%+$20.6K |
| BOOTHBAY FUND MANAGEMENT, LLC | $126.7K | 11,719 | 0.00% | new | NEW |
| CITADEL ADVISORS LLC | $109.9K | 10,170 | 0.00% | 4q | -7.2%-$8.6K |
| BNP PARIBAS FINANCIAL MARKETS | $100.7K | 9,314 | 0.00% | 2q | HELD |
| Arax Advisory Partners | $45.6K | 4,221 | 0.00% | new | NEW |
| UBS Group AG | $26.3K | 2,437 | 0.00% | 7q | +64.4%+$10.3K |
| HRT FINANCIAL LP | $1.3K | 116,551 | 0.00% | 5q | HELD |
| GLAZER CAPITAL, LLC | $231 | 21,369 | 0.01% | 7q | HELD |
| FNY Investment Advisers, LLC | $0 | 37 | 0.00% | new | NEW |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-12 | 13G/A | AQR CAPITAL MANAGEMENT LLCwith 2 co-filers | 5.0% |
| 2026-08-06 | 13G/A | W. R. Berkley Corporationwith 1 co-filers | 9.4% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 46 | $237.4M | 21,990,054 | 5 | 8 | 7 | 0.0% |
| Q1 2026 | 43 | $215.0M | 20,095,359 | 5 | 9 | 5 | 0.0% |
| Q4 2025 | 43 | $207.6M | 19,633,520 | 6 | 7 | 8 | 0.0% |
| Q3 2025 | 46 | $192.2M | 18,355,924 | 6 | 9 | 13 | 0.0% |
| Q2 2025 | 45 | $200.1M | 18,278,699 | 15 | 9 | 12 | 0.0% |
| Q1 2025 | 32 | $183.8M | 18,060,527 | 11 | 4 | 3 | 0.0% |
| Q4 2024 | 23 | $138.2M | 13,690,496 | 23 | 0 | 0 | 0.0% |