Silverbox Corp IV

CUSIP G81354105SHS CL AQ1 2026

13D / 13G Filings

Schedule 13D/13G on record

Beneficial Filers

Distinct reporting persons

Largest Stake

21.4%

Max % of class reported

Institutional Holders

13F filers (latest quarter)

15 filings · latest Feb 12, 2026

#	Filed	Reporting Person	Form	% of Class	Shares	Filing
1	Feb 12, 2026	Mizuho Financial Group, Inc.	13G	8.0%	1.65M	SEC
2	Feb 11, 2026	W. R. Berkley Corporation	13G	5.9%	1.21M	SEC
3	Nov 14, 2025	Highbridge Capital Management LLC	13G/A	1.4%	280.0K	SEC
4	Nov 10, 2025	The Goldman Sachs Group, Inc.	13G/A	11.0%	654.0K	SEC
5	Aug 14, 2025	Aqr Capital Management, LLC	13G/A	6.6%	1.35M	SEC
6	Aug 14, 2025	Highbridge Capital Management, LLC	13G	5.9%	1.23M	SEC
7	Aug 13, 2025	Healthcare Of Ontario Pension Plan Trust Fund	13G/A	0.5%	100.0K	SEC
8	Aug 13, 2025	The Goldman Sachs Group, Inc.	13G/A	11.0%	1.61M	SEC
9	Aug 12, 2025	Barclays PLC	13G/A	4.7%	970.9K	SEC
10	May 14, 2025	Healthcare Of Ontario Pension Plan Trust Fund	13G/A	8.8%	1.80M	SEC

See the full Schedule 13D/13G history for Silverbox Corp IV.

Largest reported positions · latest quarter

#	Fund	Shares	Value
1	Linden Advisors LP	2.00M	$21.40M
2	Mizuho Securities USA LLC	1.80M	$19.17M
3	Berkley W R Corp	1.51M	$16.21M
4	Polar Asset Management Partners Inc.	1.51M	$16.14M
5	Aqr Arbitrage LLC	1.34M	$14.29M
6	Wolverine Asset Management LLC	993.8K	$10.63M
7	D. E. Shaw & Co., Inc.	989.4K	$10.59M
8	Mmcap International Inc. Spc	980.0K	$10.49M
9	Crossingbridge Advisors, LLC	977.0K	$10.45M
10	Picton Mahoney Asset Management	824.9K	$8.83M