SBXD · Insider trading · 13F holders · Congress trades
Silverbox Corp Iv-A (SBXD)
Who is buying and selling SBXD: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 11
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
SBXD at a glance
- No open-market insider purchases or sales of SBXD were filed in the last 90 days.
- 11 13F filers hold SBXD among their 50 largest positions, worth $123.0M combined. The biggest bets by portfolio weight are RiverPark Advisors, LLC (3.6%), Crossingbridge Advisors, LLC (1.9%) and SkyView Investment Advisors, LLC (1.5%). In their latest 13Fs, 0 managers opened a new position and 1 added to one.
- No member of Congress has disclosed a trade in SBXD.
SBXD insider trading
No open-market insider purchases or sales of SBXD were filed in the last 90 days.
Who owns SBXD? Hedge funds and superinvestors
11 13F filers hold SBXD among their 50 largest positions, worth $123.0M combined. The biggest bets by portfolio weight are RiverPark Advisors, LLC (3.6%), Crossingbridge Advisors, LLC (1.9%) and SkyView Investment Advisors, LLC (1.5%). In their latest 13Fs, 0 managers opened a new position and 1 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Linden Advisors LPHedge fund | 0.9% | $21.6M | 2,000,000 | +0.0% shares | Q2 2026 |
| Berkley W R CorpInsurance company | 1.1% | $20.9M | 1,930,127 | +27.4% shares | Q2 2026 |
| Mizuho Securities USA LLCBroker-dealer | 0.5% | $19.2M | 1,796,947 | +0.0% shares | Q2 2026 |
| Polar Asset Management Partners Inc.Hedge fund | 0.4% | $16.3M | 1,508,005 | +0.0% shares | Q2 2026 |
| Wolverine Asset Management LLCHedge fund | 0.4% | $10.7M | 993,816 | -0.0% shares | Q2 2026 |
| MMCAP International Inc. SPCInvestment manager | 0.9% | $10.6M | 980,000 | +0.0% shares | Q2 2026 |
| Crossingbridge Advisors, LLCMutual fund manager | 1.9% | $10.0M | 928,613 | -5.0% shares | Q2 2026 |
| RiverPark Advisors, LLCMutual fund manager | 3.6% | $7.3M | 678,613 | +0.0% shares | Q2 2026 |
| RLH Capital LLCHedge fund | 1.1% | $2.3M | 210,093 | -31.0% shares | Q2 2026 |
| Quarry LPHedge fund | 0.4% | $2.2M | 200,000 | — | Q2 2026 |
| SkyView Investment Advisors, LLCInstitutional asset manager | 1.5% | $1.9M | 179,449 | — | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 11). Screen SBXD in the grand portfolio →
SBXD stock trades by members of Congress
No member of Congress has disclosed a trade in SBXD.
SBXD questions and answers
Are insiders buying SBXD stock?
No open-market insider purchases or sales of SBXD were filed in the last 90 days.
Which hedge funds own SBXD?
11 13F filers hold SBXD among their 50 largest positions, worth $123.0M combined. The biggest bets by portfolio weight are RiverPark Advisors, LLC (3.6%), Crossingbridge Advisors, LLC (1.9%) and SkyView Investment Advisors, LLC (1.5%). In their latest 13Fs, 0 managers opened a new position and 1 added to one.
Has Congress traded SBXD?
No member of Congress has disclosed a trade in SBXD.
Who is the largest holder of SBXD?
Among 13F filers, Linden Advisors LP reports the largest SBXD position, $21.6M (2,000,000 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is RiverPark Advisors, LLC's: 3.6% of its portfolio.
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