Mitsui Sumitomo Insurance Co Ltd

13D and 13G Filings

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing since 12/18/2024, newest first.

Issuer % of Class Filed
W. R. Berkley Corporation 13D/A Amendment 4
WRB · 084423102
15.8% 6/4/2026
Event 6/3/2026
W. R. Berkley Corporation 13D/A Amendment 3
WRB · 084423102
15.7% 3/5/2026
Event 3/4/2026
W. R. Berkley Corporation 13D/A Amendment 2
WRB · 084423102
14.9% 2/6/2026
Event 2/5/2026
W. R. Berkley Corporation 13D/A Amendment 1
WRB · 084423102
13.9% 1/14/2026
Event 1/13/2026
W. R. Berkley Corporation 13D
WRB · 084423102
12.8% 12/11/2025
Event 12/4/2025