Flawless Management Inc. - 09 Oct 2025 SCHEDULE 13D/A Report for C3IS INC. Common Stock, par value $0.01 per share (CISS)

Filing Manager
Flawless Management Inc.
Reporting Manager
Harry N. Vafias
Security
C3IS INC. Common Stock, par value $0.01 per share
Symbol
CISS
Shares outstanding
2,718,297 shares
Disclosed Ownership
100,577 shares
Ownership
3.7%
Form type
SCHEDULE 13D/A
Filing time
10 Oct 2025, 17:00:03 UTC
Date of event
09 Oct 2025
Previous filing
01 Oct 2025
SEC
View on sec.gov

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Flawless Management Inc. 0.01% 4 0 4 /s/ Harry N. Vafias Harry N. Vafias, President 0001328920
Arethusa Properties LTD 2.7% 72,331 0 72,331 /s/ Harry N. Vafias Harry N. Vafias, President 0002004014
Harry N. Vafias 3.7% 100,577 28,242 72,335 /s/ Harry N. Vafias Harry N. Vafias