C3is (CISS) SEC Filings & 10K Form $0.69 -0.01 (-1.71%) As of 10:31 AM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share SEC Filings Stock AnalysisChartCompetitorsEarningsFinancialsHeadlinesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Recent C3is SEC Filings All Filing Types 1 10 10-D 10-K 10-M 10-Q 11-K 12b-25 13F 13H 144 15 15F 17-H 18 18-K 19b-4(e) 19b-4 19b-7 1-A 1-E 1-K 1-N 1-SA 1-U 1-Z 20-F 24F-2 25 2-E 3 4 40-F 5 6-K 7-M 8-A 8-K 8-M 9-M ABS DD-15E ABS-15G ABS-EE ADV ADV-E ADV-H ADV-NR ADV-W ATS ATS-R BD BD-N BDW C CA-1 CB CFPORTAL D F-1 F-10 F-3 F-4 F-6 F-7 F-8 F-80 F-N F-X ID MA MA-I MA-NR MA-W MSD MSDW n/a N-14 N-17D-1 N-17f-1 N-17f-2 N-18f-1 N-1A N-2 N-23c-3 N-27D-1 N-3 N-4 N-5 N-54A N-54C N-6 N-6EI-1 N-6F N-8A N-8B-2 N-8B-4 N-8F N-CR N-CSR N-MFP N-PX N-Q NRSRO N-SAR PF PILOT R31 S-1 S-11 S-20 S-3 S-4 S-6 S-8 SBSE SBSE-A SBSE-BD SBSE-C SBSE-W SCI SD SDR SE SF-1 SF-3 SIP T-1 T-2 T-3 T-4 T-6 TA-1 TA-2 TA-W TCR TH WB-APP X-17A-19 X-17A-5 Part I X-17A-5 Part II X-17A-5 Part IIA X-17A-5 Part IIB X-17A-5 Part III X-17A-5 Schedule I X-17F-1A Filing Types Include Ownership Filings Exclude Ownership Filings Only Show Ownership FIlings Ownership Filings Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 2 Years 3 Years Time Frame * Start Date * End Date Export to Excel DateFilerForm TypeView03/12/20258:05 AMC3is (Filer)Form 424B303/12/20258:01 AMC3is (Filer)Form 424B303/12/20257:55 AMC3is (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 03/12/20257:58 AMC3is (Filer)Form 424B303/06/202511:15 PMC3is (Filer)Form EFFECT02/21/20253:41 PMC3is (Filer)Form F-3Registration statement for securities of certain foreign private issuers 02/21/20253:17 PMC3is (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 02/18/20257:00 AMC3is (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 01/14/20256:00 PMC3is (Subject)Imperial Petroleum Inc./Marshall Islands (Filed by)Imperial Petroleum Inc./Marshall Islands (Filed by)Form SCHEDULE 13D/A01/02/20253:11 PMC3is (Filer)Form 424B301/02/20253:13 PMC3is (Filer)Form 424B3 Get the Latest News and Ratings for CISS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for C3is and its competitors with MarketBeat's FREE daily newsletter. 01/02/20253:14 PMC3is (Filer)Form 424B301/02/20253:06 PMC3is (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 12/15/202411:15 PMC3is (Filer)Form EFFECT12/15/202411:15 PMC3is (Filer)Form EFFECT12/15/202411:15 PMC3is (Filer)Form EFFECT12/10/20243:11 PMC3is (Filer)Form POS AM12/10/20243:13 PMC3is (Filer)Form POS AM12/10/20243:16 PMC3is (Filer)Form POS AM11/19/20243:46 PMC3is (Filer)Form 424B309/30/20248:06 AMC3is (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 09/30/20248:10 AMC3is (Filer)Form 424B309/30/20248:12 AMC3is (Filer)Form 424B309/30/20248:13 AMC3is (Filer)Form 424B309/18/20244:01 PMC3is (Subject)Flawless Management Inc. (Filed by)Form SC 13D/A08/30/20247:53 AMC3is (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 08/23/20243:30 PMC3is (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 06/24/20248:00 AMC3is (Subject)Flawless Management Inc. (Filed by)Form SC 13D/A05/28/20243:37 PMC3is (Filer)Form 424B305/28/20243:39 PMC3is (Filer)Form 424B305/20/20248:08 AMC3is (Subject)Flawless Management Inc. (Filed by)Form SC 13D05/08/202411:15 PMC3is (Filer)Form EFFECT05/08/202411:15 PMC3is (Filer)Form EFFECT05/08/202411:15 PMC3is (Filer)Form EFFECT05/01/20243:31 PMC3is (Filer)Form POS AM05/01/20243:33 PMC3is (Filer)Form POS AM05/01/20243:34 PMC3is (Filer)Form POS AM04/30/20248:23 AMC3is (Filer)Form 20-FRegistration statement / Annual report / Transition report 04/12/20243:07 PMC3is (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 04/12/20243:07 PMC3is (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 04/12/20243:11 PMC3is (Filer)Form 424B3Now that Trump’s be inaugurated, this day will be key (mark your calendar) (Ad)Mark your calendar for May 7th. Because on that day, I believe we could see a $2 Trillion shock INTO the market… Unleashing more explosive moves than ever before.So please watch this video now before the hammer falls and it’s too late.04/12/20243:11 PMC3is (Filer)Form 424B304/12/20243:13 PMC3is (Filer)Form 424B304/12/20243:13 PMC3is (Filer)Form 424B304/12/20243:14 PMC3is (Filer)Form 424B304/12/20243:14 PMC3is (Filer)Form 424B304/12/20247:40 AMC3is (Filer)Form 424B304/12/20247:32 AMC3is (Filer)Form 424B304/12/20247:37 AMC3is (Filer)Form 424B304/12/20247:28 AMC3is (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 (Data available from 1/1/2016 forward) Remove Ads Related Companies and Tools Related Companies USD Partners 10K Form Mondee 10K Form Air T 10K Form Blade Air Mobility 10K Form Imperial Petroleum 10K Form Pyxis Tankers 10K Form Webus International 10K Form Enbridge 10K Form Canadian Pacific Kansas City 10K Form Canadian National Railway 10K Form SEC Filings Tools Latest SEC FilingsInsider Trading Activity This page (NASDAQ:CISS) was last updated on 3/28/2025 by MarketBeat.com Staff From Our PartnersElon Warns: Exec Order 14024 Targets DollarExecutive Order 14024 is paving the way for irreversible damage to the dollar's value—threatening your wealth,...Priority Gold | SponsoredEx CIA predicts 40% “double crash” – April 11The scientists here don’t study deadly viruses… directed energy weapons… or even weather control technology… ...Paradigm Press | SponsoredNow that Trump’s be inaugurated, this day will be key (mark your calendar)Mark your calendar for May 7th. 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