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Schedule 13D filing
Imperial Petroleum Inc./Marshall Islands disclosed a 80.5% stake in C3is Inc. (CISS)
Imperial Petroleum Inc./Marshall Islands reported owning 80.5% of C3is Inc. (CISS) (6,136,475 shares) in a Schedule 13D filed Aug 28, 2026.
A 13D means the holder may push for changes at the company.
From a public Schedule 13D, linked above. Not investment advice, and not a recommendation to buy or sell.