SBXD · SilverBox Corp IV · Holdings
$11.00
+0.00 (+0.00%)
At close · Sep 30
Return incl. dividend (before tax)
Going-concern doubt
— flagged Aug 12, 2026
Substantial doubt about the company's ability to continue as a going concern.
“The Company's liquidity condition and mandatory liquidation within one year raises substantial doubt about the Company's ability to continue as a going concern for a period of time within one year after the date that the accompanying unaudited condensed financial statements are issued. Management plans to address this uncertainty through a Business Combination. No adjustments have been made to the carrying amounts of assets or liabilities should the Company be required to liquidate after the Combination Period. The Company intends to complete the initial Business Combination before the end of the Combination Period. However, there can be no assurance that the Company will be able to consummate any Business Combination by the end of the Combination Period.”View the 10-Q filed Aug 12, 2026
Market Cap
$73.15M
Shares
6.42M
Volume · Sep 30
653
Avg daily vol (3M)
35.89K
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
Holders: 49
Total Value: $221,718,224
Total Shares: 20,510,476
Institutional Ownership Trend
7 quarters
Holder Concentration
Across 49 13F filers · Δ vs Mar 31, 2026Top Holder
9.8%
−0.1 pts
Top 5
40.4%
+0.1 pts
Top 10
63.4%
−0.4 pts
HHI
513
Broadly held+4
Quarterly Activity
vs Mar 31, 2026
New
5
Increased
8
Decreased
11
Sold Out
2
Unchanged
25
Holder count:
+3
Institutional value:
+2.4%
Shares held:
+1.4%
Top Buyers
vs Mar 31, 2026| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mid BERKLEY W R CORP | +415,554 | 1,930,127 | |
| Mid HIGHBRIDGE CAPITAL MANAGEMENT LLC | +102,623 | 154,587 | |
| Mid METEORA CAPITAL, LLC | +86,092 | 139,311 | |
| Large TORONTO DOMINION BANK | +71,274 | 246,374 | |
| Mid Quarry LP | +58,403 | 200,000 |
Top Sellers
vs Mar 31, 2026| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mid AQR Arbitrage LLC | −322,975 | 1,012,401 | |
| Small RLH Capital LLC | −94,227 | 210,093 | |
| Small DLD Asset Management, LP | −71,073 | 50,000 | |
| Mid Periscope Capital Inc. | −50,000 | 75,000 | |
| Small Crossingbridge Advisors, LLC | −48,400 | 928,613 |
Top New Positions
vs Mar 31, 2026| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Small SkyView Investment Advisors, LLC | 179,449 | $1,939,843 | |
| Mid StoneX Group Inc. | 48,554 | $524,868 | |
| Large Alyeska Investment Group, L.P. | 24,500 | $264,845 | |
| Mid BOOTHBAY FUND MANAGEMENT, LLC | 11,719 | $126,682 | |
| Large Arax Advisory Partners | 4,221 | $45,629 |
Top Sold-Out Positions
vs Mar 31, 2026| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Large Verition Fund Management LLC | 145,142 | $1,553,019 | |
| Mega NATIONAL BANK OF CANADA /FI/ | 64 | $684 |
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mid Linden Advisors LP | $21,620,000 | 9.75% | 2,000,000 | Shares | 2026-08-14 | |
| Mid BERKLEY W R CORP | $20,864,672 | 9.41% | 1,930,127 | Shares | 2026-08-14 | |
| Mid MIZUHO SECURITIES USA LLC Broker-Dealer | $19,895,178 | 8.97% | 1,840,442 | Shares | 2026-07-28 | |
| Mid Polar Asset Management Partners Inc. | $16,301,534 | 7.35% | 1,508,005 | Shares | 2026-08-14 | |
| Mid AQR Arbitrage LLC | $10,944,054 | 4.94% | 1,012,401 | Shares | 2026-08-14 | |
| Mid WOLVERINE ASSET MANAGEMENT LLC | $10,743,150 | 4.85% | 993,816 | Shares | 2026-08-10 | |
| Mega D. E. Shaw & Co., Inc. | $10,695,381 | 4.82% | 989,397 | Shares | 2026-08-14 | |
| Mid MMCAP International Inc. SPC | $10,593,800 | 4.78% | 980,000 | Shares | 2026-08-14 | |
| Small Crossingbridge Advisors, LLC | $10,038,306 | 4.53% | 928,613 | Shares | 2026-08-13 | |
| Large PICTON MAHONEY ASSET MANAGEMENT | $8,917,158 | 4.02% | 824,899 | Shares | 2026-08-13 | |
| Small RiverPark Advisors, LLC | $7,335,806 | 3.31% | 678,613 | Shares | 2026-07-24 | |
| Mega GOLDMAN SACHS GROUP INC | $6,551,659 | 2.95% | 606,074 | Shares | 2026-08-14 | |
| Mid Magnetar Financial LLC | $5,630,096 | 2.54% | 520,823 | Shares | 2026-08-14 | |
| Large LMR Partners LLP | $5,405,000 | 2.44% | 500,000 | Shares | 2026-08-14 | |
| Large Calamos Advisors LLC | $5,405,000 | 2.44% | 500,000 | Shares | 2026-07-31 | |
| Mid First Trust Capital Management L.P. | $4,812,266 | 2.17% | 445,168 | Shares | 2026-08-13 | |
| Mid ARISTEIA CAPITAL, L.L.C. | $3,633,489 | 1.64% | 336,123 | Shares | 2026-08-14 | |
| Mid Westchester Capital Management, LLC | $3,518,492 | 1.59% | 325,485 | Shares | 2026-08-14 | |
| Mid RIVERNORTH CAPITAL MANAGEMENT, LLC | $3,242,967 | 1.46% | 299,997 | Shares | 2026-08-14 | |
| Small Context Capital Management, LLC | $2,842,500 | 1.28% | 262,951 | Shares | 2026-07-23 | |
| Mid MOORE CAPITAL MANAGEMENT, LP | $2,702,500 | 1.22% | 250,000 | Shares | 2026-08-14 | |
| Large TORONTO DOMINION BANK Bank | $2,663,302 | 1.20% | 246,374 | Shares | 2026-08-14 | |
| Mid Shaolin Capital Management LLC | $2,606,701 | 1.18% | 241,138 | Shares | 2026-08-14 | |
| Small Radcliffe Capital Management, L.P. | $2,458,777 | 1.11% | 227,454 | Shares | 2026-08-14 | |
| Small RLH Capital LLC | $2,271,105 | 1.02% | 210,093 | Shares | 2026-08-10 | |
| Small Wealthspring Capital LLC | $2,243,777 | 1.01% | 207,565 | Shares | 2026-07-15 | |
| Mid Quarry LP | $2,162,000 | 0.98% | 200,000 | Shares | 2026-08-14 | |
| Mega MILLENNIUM MANAGEMENT LLC | $2,162,000 | 0.98% | 200,000 | Shares | 2026-08-14 | |
| Small SkyView Investment Advisors, LLC | $1,939,843 | 0.87% | 179,449 | Shares | 2026-09-15 | |
| Mid MANGROVE PARTNERS IM, LLC | $1,693,083 | 0.76% | 156,622 | Shares | 2026-08-14 | |
| Mid HIGHBRIDGE CAPITAL MANAGEMENT LLC | $1,671,085 | 0.75% | 154,587 | Shares | 2026-08-14 | |
| Mid METEORA CAPITAL, LLC | $1,505,951 | 0.68% | 139,311 | Shares | 2026-08-14 | |
| Large HRT FINANCIAL LP | $1,259,916 | 0.57% | 116,551 | Shares | 2026-08-14 | |
| Mid Massar Capital Management, LP | $1,022,626 | 0.46% | 94,600 | Shares | 2026-08-14 | |
| Mid Periscope Capital Inc. | $810,750 | 0.37% | 75,000 | Shares | 2026-08-11 | |
| Small Lineage Point Capital LP | $540,954 | 0.24% | 50,042 | Shares | 2026-08-14 | |
| Small DLD Asset Management, LP | $540,500 | 0.24% | 50,000 | Shares | 2026-08-13 | |
| Mega JPMORGAN CHASE & CO | $540,500 | 0.24% | 50,000 | Shares | 2026-08-12 | |
| Mid StoneX Group Inc. | $524,868 | 0.24% | 48,554 | Shares | 2026-08-12 | |
| Large Clear Street Group Inc. | $322,300 | 0.15% | 29,815 | Shares | 2026-08-12 | |
| Large Alyeska Investment Group, L.P. | $264,845 | 0.12% | 24,500 | Shares | 2026-08-14 | |
| Mid GLAZER CAPITAL, LLC | $230,998 | 0.10% | 21,369 | Shares | 2026-08-17 | |
| Mega JANE STREET GROUP, LLC | $179,661 | 0.08% | 16,620 | Shares | 2026-08-14 | |
| Mid BOOTHBAY FUND MANAGEMENT, LLC | $126,682 | 0.06% | 11,719 | Shares | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC | $109,937 | 0.05% | 10,170 | Shares | 2026-09-02 | |
| Mega BNP PARIBAS ARBITRAGE, SA | $100,684 | 0.05% | 9,314 | Shares | 2026-08-13 | |
| Large Arax Advisory Partners | $45,629 | 0.02% | 4,221 | Shares | 2026-08-10 | |
| Mega UBS Group AG | $26,343 | 0.01% | 2,437 | Shares | 2026-08-13 | |
| Small FNY Investment Advisers, LLC | $399 | 0.00% | 37 | Shares | 2026-07-08 |