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SCHEDULE Filed 2025-10-01 Event 2025-09-29 SEC 0001193125-25-226783 →

Flawless Management Inc. C3is Inc. CISS

Stake: 6.30% Shares: 100,577 CUSIP: Y18284169 Class: Common Stock, par value $0.01 per share

Item 4 — Purpose of Transaction

The Reporting Persons acquired the securities described in this Schedule 13D for investment purposes and intend to review their investment in the Issuer on a continuing basis. Any Reporting Person may from time to time acquire additional securities of the Issuer, or retain or sell all or a portion of the shares then held by the Reporting Persons, in the open market, block trades, underwritten public offerings or privately negotiated transactions. Any actions any Reporting Person might undertake with respect to its investment in the Issuer may be made at any time and from time to time and will be dependent upon such Reporting Person's review of numerous factors, including, but not limited to: ongoing evaluation of the Issuer's business, financial condition, operations, prospects and strategic alternatives; price levels of the Issuer's securities; general market, industry and economic conditions; the relative attractiveness of alternative business and investment opportunities; tax considerations; liquidity of the Issuer's securities; and other factors and future developments. Mr. Vafias serves as the Non-Executive Chairman of the Issuer and therefore regularly engages in discussions with management of the Issuer, the board of directors of the Issuer, other shareholders of the Issuer and other relevant parties, which discussions may include matters ranging from the operations and conduct of the Issuer's business to considering or exploring extraordinary corporate transactions including the events listed in Items 4(a) through 4(j) of Schedule 13D. In connection with these discussions, the Reporting Persons may, either directly or through one or more affiliates, determine to take any available course of action or to take no course of action and may at any time and from time to time take steps to further or implement such course of action, including any of the events listed in Items 4(a) through 4(j) of Schedule 13D. Any action or actions the Reporting Persons may undertake with respect to their investment in the Issuer or the operations and conduct of the Issuer's business will be dependent upon the Reporting Persons' review of numerous factors, including those listed above, and the Reporting Persons specifically reserve the right to change their intentions, or to formulate plans and proposals, with respect to any or all of the matters described in this paragraph, subject to applicable law and regulations.

Cross-References

Insider Activity (last 365d)
0 transactions
0 buys · 0 sales · 0 awards/exercises
Issuer Cluster
4 13D/G filings on this issuer
3 other filings besides this one
Filer Track Record
9 filings by this filer
8 other filings in the data moat
Short Interest · settle 2026-03-31
DTC 1.00
58,387 shares short · -3.7% vs prior

Other 13D/G Filings on C3is Inc.

FiledFormFilerStakeShares
2025-10-10 SCHEDULE Flawless Management Inc. 3.70% 100,577 view →
2025-10-10 SCHEDULE Imperial Petroleum Inc./Marshall Islands 68.80% 6,000,000 view →
2025-01-14 SCHEDULE Imperial Petroleum Inc./Marshall Islands 73.10% 11,532,251 view →

Other Filings by Flawless Management Inc.

FiledFormIssuerStakeShares
2025-12-03 SCHEDULE Imperial Petroleum Inc./Marshall Islands IMPPP 29.60% 13,205,673 view →
2025-10-10 SCHEDULE C3is Inc. CISS 3.70% 100,577 view →
2024-01-08 SC Imperial Petroleum Inc./Marshall Islands IMPPP view →
2023-12-11 SC Imperial Petroleum Inc./Marshall Islands IMPPP view →
2023-05-31 SC StealthGas Inc. GASS view →
2022-04-04 SC Imperial Petroleum Inc./Marshall Islands IMPPP view →
2021-06-01 SC StealthGas Inc. GASS view →
2020-03-27 SC StealthGas Inc. GASS view →

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