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Schedule 13G filing
Alta Partners LLC cut its C3is Inc. (CISS) stake below 5%
Alta Partners LLC reported owning 3.1% of C3is Inc. (CISS) (46,773 shares) in a Schedule 13G filed Oct 5, 2026.
A 13G is a passive stake: the holder does not plan to push for changes.
From a public Schedule 13G, linked above. Not investment advice, and not a recommendation to buy or sell.