C3is INC Schedule 13G passive stakes

S.H.N. Financial Investments Ltd. has amended its Schedule 13G filing, reporting a reduced beneficial ownership of C3is Inc. common shares and warrants.

Ascent Partners Fund LLC and its affiliates have filed a Schedule 13G, reporting beneficial ownership of 1,610,566 shares of C3is Inc. common stock, representing 9.99% of the class, subject to ownership limitations.

Alta Partners LLC has filed an amendment to its Schedule 13G, reporting beneficial ownership of 8.2% of C3is Inc. common stock.

CVI Investments, Inc. and Heights Capital Management, Inc. have jointly filed a Schedule 13G, reporting beneficial ownership of 9.9% of C3is Inc. common stock.

Lind Global Fund III LP, Lind Global Partners III LLC, and Jeff Easton have jointly filed a Schedule 13G, reporting beneficial ownership of 1,325,482 shares of C3is Inc. common stock, representing 9.99% of the class.

TowerView LLC has reported beneficial ownership of 35,000 shares, representing 6.5% of the outstanding Common Stock of C3is Inc., as of May 18, 2026.

Evergreen Capital Management LLC has filed an amendment to its Schedule 13G, indicating it no longer holds more than 5% of C3is Inc. common stock.

Alta Partners LLC has reported a 5.2% beneficial ownership stake in C3is Inc., holding 56,176 shares of common stock.

Ayrton Capital LLC, Alto Opportunity Master Fund, SPC, and Waqas Khatri have jointly disclosed a 9.99% beneficial ownership stake in C3IS INC. common stock.

Evergreen Capital Management LLC has reported a 9.99% beneficial ownership stake in C3is Inc., comprising common shares and pre-funded warrants.

Athanasios Tsiakmakis reports beneficial ownership of 5.02% of C3is Inc.'s common stock in an amended Schedule 13G filing.

Evergreen Capital Management LLC/NV has reported a 9.99% passive ownership stake in C3is Inc., holding 443,213 shares of common stock.

S.H.N. Financial Investments Ltd. has reported a 9.99% beneficial ownership stake in C3is Inc., comprising common shares and pre-funded warrants.

L1 Capital Global Opportunities Master Fund, Ltd. has reported a 9.99% beneficial ownership stake in C3is Inc.'s common stock.

S.H.N. Financial Investments Ltd. has filed an amended Schedule 13G, reporting beneficial ownership of 2.7% of C3is Inc.'s common shares through C-2 Warrants.

Athanasios Tsiakmakis has reported a 14.36% beneficial ownership stake in C3is Inc., holding 155,000 shares of common stock.

An amendment to Schedule 13G reveals Pandora Consultants II SA and the Vafias family beneficially own 2.7% of C3IS Inc. common stock.

Wexford Capital LP and affiliated entities have increased their beneficial ownership in C3is Inc. to 7.02% of outstanding common stock.

Wexford Capital LP and its affiliates have reported a 10.23% beneficial ownership stake in C3is Inc. common stock as of September 22, 2025.

L1 Capital Global Opportunities Master Fund, Ltd. has filed an amended Schedule 13G, reporting a 4.99% passive beneficial ownership stake in C3is Inc. as of December 31, 2024.