BERKLEY W R CORP - 30 Sep 2025 SCHEDULE 13G Report for BEST SPAC I ACQUISITION CORP. Class A ordinary shares, no par value (BSAA)

Filing Manager: BERKLEY W R CORP
Reporting Manager: W. R. Berkley Corporation
Security: BEST SPAC I ACQUISITION CORP. Class A ordinary shares, no par value
Symbol: BSAA
Shares outstanding: 5,971,660 shares
Disclosed Ownership: 298,583 shares
Ownership: 5%
Form type: SCHEDULE 13G
Filing time: 10 Nov 2025, 18:13:05 UTC
Date of event: 30 Sep 2025
SEC: View on sec.gov

Reporting Managers (2)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
W. R. Berkley Corporation	5%	298,583	0	298,583	/s/ Richard M. Baio	Richard M. Baio/Executive Vice President and Chief Financial Officer
Berkley Insurance Company	5%	298,583	0	298,583	/s/ Richard M. Baio	Richard M. Baio/Executive Vice President and Treasurer