SEC 13F Intelligence

SILVERBOX CORP IV

CUSIP G81354121

Silverbox Corp IV has 28 institutional holders in Filings Flow’s 13F database, together reporting 6.06M shares worth $1M as of Q1 2026. The largest reported holders are Harraden Circle Investments, LLC, Linden Advisors LP, and Polar Asset Management Partners Inc..

Institutional Holders
28
Q1 2026
Reported Value
$1M
Ticker
unmapped
private placement or foreign
Quarters Tracked
6

Ownership Trend

Institutional holders
Q4 ’24: 17Q4 ’24Q1 ’25: 25Q1 ’25Q2 ’25: 30Q2 ’25Q3 ’25: 28Q3 ’25Q4 ’25: 29Q4 ’25Q1 ’26: 28Q1 ’26filingsflow.com
Total reported value
Q4 ’24: $947,265Q4 ’24Q1 ’25: $2MQ1 ’25Q2 ’25: $7MQ2 ’25Q3 ’25: $3MQ3 ’25Q4 ’25: $2MQ4 ’25Q1 ’26: $1MQ1 ’26filingsflow.com

Holders

Mixed quarters
Manager% of PortfolioValueSharesQuarter
Harraden Circle Investments, LLC$499M AUM0.07%$276,176240.2KQ2 2025OLDER
MMCAP International Inc. SPC$1.2B AUM0.01%$73,141326.7KQ1 2026
Governors Lane LP$1.6B AUM0.01%$90,168321.9KQ4 2025OLDER
Wealthspring Capital LLC$421M AUM0.00%$16,97377.2KQ1 2026
DLD Asset Management, LP$1.1B AUM0.00%$33,638150.2KQ1 2026
Polar Asset Management Partners Inc.$5.0B AUM0.00%$147,774660.0KQ1 2026
Bulldog Investors, LLP$445M AUM0.00%$12,95258.1KQ1 2026
PERISCOPE CAPITAL INC.$902M AUM0.00%$18,02570.0KQ1 2026
ARISTEIA CAPITAL, L.L.C.$4.8B AUM0.00%$94,885368.5KQ1 2026
AQR Arbitrage LLC$6.1B AUM0.00%$118,169527.7KQ1 2026
Shaolin Capital Management LLC$2.7B AUM0.00%$44,680199.6KQ1 2026
CSS LLC/IL$2.1B AUM0.00%$29,671132.5KQ1 2026
Sculptor Capital LP$9.6B AUM0.00%$120,999469.9KQ1 2026
RIVERNORTH CAPITAL MANAGEMENT, LLC$2.0B AUM0.00%$22,392100.0KQ1 2026
LINDEN ADVISORS LP$17.9B AUM0.00%$191,333666.7KQ1 2026
HIGHBRIDGE CAPITAL MANAGEMENT LLC$3.1B AUM0.00%$20,03845.5KQ3 2025OLDER
Context Capital Management, LLC$4.3B AUM0.00%$23,357104.3KQ1 2026
Saba Capital Management, L.P.$3.6B AUM0.00%$17,43567.7KQ1 2026
MOORE CAPITAL MANAGEMENT, LP$4.9B AUM0.00%$18,65883.3KQ1 2026
Magnetar Financial LLC$9.8B AUM0.00%$33,106150.5KQ1 2026
PICTON MAHONEY ASSET MANAGEMENT$13.5B AUM0.00%$45,525203.3KQ1 2026
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND$62.2B AUM0.00%$146,667666.7KQ1 2026
CLEAR STREET LLC$25.1B AUM0.00%$58,07548.4KQ2 2025OLDER
StoneX Group Inc.$1.9B AUM0.00%$3,39215.4KQ1 2026
Calamos Advisors LLC$28.2B AUM0.00%$47,833166.7KQ1 2026
Walleye Capital LLC$24.0B AUM0.00%$36,841164.5KQ1 2026
LMR Partners LLP$45.4B AUM0.00%$37,317166.7KQ1 2026
Schonfeld Strategic Advisors LLC$14.2B AUM0.00%$11,50010.0KQ2 2025OLDER
Clear Street Group Inc.$24.6B AUM0.00%$10,83748.4KQ1 2026
Parallax Volatility Advisers, L.P.$38.6B AUM0.00%$11,85178.8KQ1 2026
BNP PARIBAS FINANCIAL MARKETS$205.8B AUM0.00%$55,244214.5KQ1 2026
TORONTO DOMINION BANK$69.7B AUM0.00%$10,34446.2KQ1 2026
MILLENNIUM MANAGEMENT LLC$240.3B AUM0.00%$14,92866.7KQ1 2026

Holdings are reported up to 45 days after quarter end. Share counts are as filed and not adjusted for stock splits.