Polar Asset Management Partners Inc. - Jun 30, 2025 SCHEDULE 13G/A Report for Silverbox Corp IV Class A ordinary shares, par value $0.0001 per share (SBXDU)

Filing Manager: Polar Asset Management Partners Inc.
Reporting Manager: Polar Asset Management Partners Inc.
Security: Silverbox Corp IV Class A ordinary shares, par value $0.0001 per share
Symbol: SBXDU
Shares outstanding: 20.6M shares
Disclosed Ownership: 1.48M shares
Ownership: 7.2%
Form type: SCHEDULE 13G/A
Date filed: 8/14/2025, 02:44 PM
Date of event: Jun 30, 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Polar Asset Management Partners Inc.	7.2%	1.48M	1.48M	0	Andrew Ma	Chief Compliance Officer