SilverBox Corp IV
SilverBox Corp IV (SBXD) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · SBXD · as of Sep 30, 2025
Ownership Breakdown
51
Institutional Holders
▲ 1 vs Q2
$201.73M
Total Inst. Value
▼ $11.17M vs Q2
20.45M
Shares Outstanding
freeFloat 97.78%
19.27M
13F Shares Held
▼ 186,791 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
SBXD largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
LINDEN ADVISORS LP blank checks | 2.00M | 9.78% | 9.78% | $20.94B | Nov 14, 2025 | — held |
POLAR ASSET MANAGEMENT PARTNERS INC. blank checks | 1.48M | 7.24% | 7.24% | $15.50B | Dec 1, 2025 | — held |
AQR ARBITRAGE LLC blank checks | 1.35M | 6.59% | 6.59% | $14.10B | Nov 14, 2025 | — held |
SCULPTOR CAPITAL LP blank checks | 1.17M | 5.74% | 5.74% | $12.30B | Nov 14, 2025 | ▼ 25.6K |
D. E. SHAW & CO., INC. blank checks | 989.4K | 4.84% | 4.84% | $10.36B | Nov 14, 2025 | — held |
MMCAP INTERNATIONAL INC. SPC blank checks | 980.0K | 4.79% | 4.79% | $10.26B | Nov 10, 2025 | — held |
TORONTO DOMINION BANK blank checks | 938.0K | 4.59% | 4.59% | $9.82B | Nov 14, 2025 | ▲ 622.5K |
PICTON MAHONEY ASSET MANAGEMENT blank checks | 824.9K | 4.03% | 4.03% | $8.64B | Nov 12, 2025 | — held |
GOVERNORS LANE LP blank checks | 753.2K | 3.68% | 3.68% | $7.89B | Nov 14, 2025 | — held |
DECAGON ASSET MANAGEMENT LLP blank checks | 674.8K | 3.30% | 3.30% | $7.06B | Nov 14, 2025 | ▲ 233.7K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
9
Increased
+1.88M shares8
New Positions
first time holders15
Decreased
−880.8K shares0
Sold Out
fully exitedNet shares change (top 50)
+1.00M
+1.88M / −880.8K
Net new holders
+2
8 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
SBXD insider trading · insider activity
Source: SEC Form 4
0
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
No recent insider transactions reported.
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
SilverBox Corp IV (SBXD) is primarily owned by institutional investors, who hold approximately 94.2% of total shares outstanding. Company insiders own approximately 2.22%, while retail and public investors account for the remaining 3.58%.
The largest institutional shareholder of SilverBox Corp IV is LINDEN ADVISORS LP, holding approximately 2.00 million shares — equal to 9.78% of outstanding shares — as of September 30, 2025.
A total of 51 institutional investors currently hold SBXD stock, with a combined institutional value of approximately $201,730,829 as of the most recent 13F filing period.
Frequently asked questions
SBXD ownershipSilverBox Corp IV (SBXD) is primarily owned by institutional investors, who hold approximately 94.2% of shares. The largest shareholder is LINDEN ADVISORS LP with a 9.78% stake. Company insiders hold 2.22%. Data sourced from SEC Form 13F as of September 30, 2025.