# SILVERBOX CORP IV (SBXD)

> Institutional ownership reported to the SEC as of Q2 2026, from Form 13F filings. Source: https://holderbook.com/stocks/SBXD/

- Reporting holders: 48
- Reported value: $239.0M
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [MIZUHO SECURITIES USA LLC](https://holderbook.com/funds/812291-mizuho-securities-usa-llc/) | $39.0M | 3,637,389 | 0.4% | 4 |
| [Linden Advisors LP](https://holderbook.com/funds/1279396-linden-advisors-lp/) | $21.6M | 2,000,000 | 0.1% | 7 |
| [BERKLEY W R CORP](https://holderbook.com/funds/11544-berkley-w-r-corp/) | $20.9M | 1,930,127 | 1.0% | 7 |
| [Polar Asset Management Partners Inc.](https://holderbook.com/funds/1326389-polar-asset-management-partners-inc/) | $16.3M | 1,508,005 | 0.3% | 7 |
| [AQR Arbitrage LLC](https://holderbook.com/funds/1167456-aqr-arbitrage-llc/) | $10.9M | 1,012,401 | 0.2% | 7 |
| [WOLVERINE ASSET MANAGEMENT LLC](https://holderbook.com/funds/1279891-wolverine-asset-management-llc/) | $10.7M | 993,816 | 0.1% | 6 |
| [D. E. Shaw & Co., Inc.](https://holderbook.com/funds/1009207-d-e-shaw-co-inc/) | $10.7M | 989,397 | 0.0% | 7 |
| [MMCAP International Inc. SPC](https://holderbook.com/funds/1304857-mmcap-international-inc-spc/) | $10.6M | 980,000 | 0.9% | 6 |
| [Crossingbridge Advisors, LLC](https://holderbook.com/funds/1770024-crossingbridge-advisors-llc/) | $10.0M | 928,613 | 1.8% | 3 |
| [PICTON MAHONEY ASSET MANAGEMENT](https://holderbook.com/funds/1539041-picton-mahoney-asset-management/) | $8.9M | 824,899 | 0.1% | 7 |
| [RiverPark Advisors, LLC](https://holderbook.com/funds/1484256-riverpark-advisors-llc/) | $7.3M | 678,613 | 3.4% | 3 |
| [GOLDMAN SACHS GROUP INC](https://holderbook.com/funds/886982-goldman-sachs-group-inc/) | $6.6M | 606,074 | 0.0% | 7 |
| [Magnetar Financial LLC](https://holderbook.com/funds/1352851-magnetar-financial-llc/) | $5.6M | 520,823 | 0.1% | 5 |
| [Calamos Advisors LLC](https://holderbook.com/funds/1316507-calamos-advisors-llc/) | $5.4M | 500,000 | 0.0% | 6 |
| [LMR Partners LLP](https://holderbook.com/funds/1578621-lmr-partners-llp/) | $5.4M | 500,000 | 0.0% | 7 |
| [First Trust Capital Management L.P.](https://holderbook.com/funds/1604488-first-trust-capital-management-l-p/) | $4.8M | 445,168 | 0.3% | 5 |
| [ARISTEIA CAPITAL, L.L.C.](https://holderbook.com/funds/1080171-aristeia-capital-l-l-c/) | $3.6M | 336,123 | 0.0% | 3 |
| [Westchester Capital Management, LLC](https://holderbook.com/funds/1512805-westchester-capital-management-llc/) | $3.5M | 325,485 | 0.2% | 6 |
| [RIVERNORTH CAPITAL MANAGEMENT, LLC](https://holderbook.com/funds/1447578-rivernorth-capital-management-llc/) | $3.2M | 299,997 | 0.2% | 7 |
| [Context Capital Management, LLC](https://holderbook.com/funds/1301396-context-capital-management-llc/) | $2.8M | 262,951 | 0.1% | 6 |
| [MOORE CAPITAL MANAGEMENT, LP](https://holderbook.com/funds/1448574-moore-capital-management-lp/) | $2.7M | 250,000 | 0.0% | 6 |
| [TORONTO DOMINION BANK](https://holderbook.com/funds/947263-toronto-dominion-bank/) | $2.7M | 246,374 | 0.0% | 6 |
| [Shaolin Capital Management LLC](https://holderbook.com/funds/1766806-shaolin-capital-management-llc/) | $2.6M | 241,138 | 0.1% | 5 |
| [Radcliffe Capital Management, L.P.](https://holderbook.com/funds/1218275-radcliffe-capital-management-l-p/) | $2.5M | 227,454 | 0.2% | 5 |
| [RLH Capital LLC](https://holderbook.com/funds/2008031-rlh-capital-llc/) | $2.3M | 210,093 | 1.1% | 2 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q2 2026 | 48 | $239.0M |
| Q1 2026 | 45 | $216.4M |
| Q4 2025 | 45 | $209.3M |
| Q3 2025 | 50 | $202.3M |
| Q2 2025 | 49 | $213.0M |
| Q1 2025 | 35 | $194.4M |
| Q4 2024 | 25 | $148.5M |