Who owns SilverBox Corp IV, from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).
Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.
AQR CAPITAL MANAGEMENT LLC: 5.0% · 1,012,401 shares — AQR Capital Management Holdings, LLC: 5.0% · 1,012,401 shares — AQR Arbitrage, LLC: 5.0% · 1,012,401 shares
W. R. Berkley Corporation: 9.4% · 1,923,442 shares — Berkley Insurance Company: 9.4% · 1,923,442 shares
8 more 5% stakes behind a free account
See every investor who has disclosed crossing 5% of SilverBox Corp IV.
Sign up freeEvery institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of SilverBox Corp IV they hold.
| Investor | Position value | Shares | % of their portfolio | % of company | As of |
|---|---|---|---|---|---|
| MIZUHO SECURITIES USA LLC | $39M | 3,637,389 | 0.37% | — | June 30, 2026 |
| Linden Advisors LP | $21.6M | 2,000,000 | 0.11% | — | June 30, 2026 |
54 more institutional holders behind a free account
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Sign up freeFunds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets.
| Fund | Position value | % of net assets | % of company | As of |
|---|---|---|---|---|
| RIVERPARK SHORT TERM HIGH YIELD FUND | $7.34M | 1.49% | — | June 30, 2026 |
| First Trust Merger Arbitrage Fund | $3.99M | 0.25% | — | March 31, 2026 |
5 more funds behind a free account
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