C3is INC. (CISS) — SEC Filings

Q: What are the key financial highlights for C3is INC.?

Key financial highlights for C3is INC. are extracted from the most recent 10-K or 10-Q filings, including revenue, net income, EPS, debt-to-equity, cash position, and operating margin.

Q: Who are the key executives at C3is INC.?

Key executives at C3is INC. are identified from SEC filings including 10-K annual reports, proxy statements, and insider trade forms.

Q: What are the main risk factors for C3is INC. stock?

Risk factors for C3is INC. (CISS) are assessed from SEC filings using AI analysis. Each filing is categorized as high, medium, or low risk based on disclosed risk factors and financial indicators.

Q: What are recent predictions and forward guidance from C3is INC.?

Forward-looking statements and predictions from C3is INC. are extracted from SEC filings including earnings reports, annual reports, and current event filings.

Latest SEC filings for C3is INC.. Recent 6-K filing on Apr 23, 2026. AI-decoded analysis of earnings, risk factors, and insider trades.

View C3is INC. on SEC EDGAR

Overview

C3is INC. (CISS) is a publicly traded company tracked on ReadTheFiling. The most recent enriched filing is a 6-K filed on Apr 23, 2026: On April 23, 2026, C3is Inc. filed a Form 6-K, reporting information as a foreign issuer. The filing includes standard documents like the 6-K report itself and an exhibit (EX-99.1). The company's mailing and business addresses are both listed as 331 Kifissias Avenue, Erithrea, Athens, Greece.

Sentiment Summary

Across 39 filings, the sentiment breakdown is: 2 bullish, 2 bearish, 35 neutral. The dominant filing sentiment for C3is INC. is neutral.

Filing Type Overview

C3is INC. (CISS) has filed 27 6-K, 2 20-F, 5 SC 13D/A, 4 SC 13G, 1 SC 13D with the SEC between Jan 2024 to Apr 2026.

Filings by Year

2026 · 2025 · 2024

Recent Filings (39)

C3is Inc. Files 6-K Report — 6-K · Apr 23, 2026 Risk: low
On April 23, 2026, C3is Inc. filed a Form 6-K, reporting information as a foreign issuer. The filing includes standard documents like the 6-K report itself and
C3is Inc. Buys Tanker for $16.88M — 6-K · Dec 19, 2025 Risk: medium
C3is Inc. announced on December 19, 2025, that it has entered into a Vessel Acquisition Agreement to purchase a 2008-built product tanker with a 50,000 dwt capa
C3is Inc. Completes Unit Offering — 6-K · Dec 12, 2025 Risk: medium
On December 12, 2025, C3is Inc. completed a registered offering of 7,500,000 units. This offering included 1,700,000 common units, with each common unit compris
C3is Inc. Reports Q3 2025 Financial Results — 6-K · Nov 18, 2025 Risk: medium
C3is Inc. filed a Form 6-K on November 18, 2025, to report its financial and operating results for the three and nine months ended September 30, 2025. The filin
C3is Inc. to Sell 800,000 Shares in Registered Direct Offering — 6-K · Oct 9, 2025 Risk: medium
On October 8, 2025, C3is Inc. entered into a securities purchase agreement with institutional investors to sell 800,000 shares of common stock at an unspecified
C3is Inc. Files 6-K for Q2 2025 — 6-K · Sep 29, 2025 Risk: medium
C3is Inc. filed a 6-K report for the period ending June 30, 2025. The filing includes financial data and details related to its operations in deep sea foreign t
C3is Inc. Reports Q2 2025 Preliminary Financial Results — 6-K · Sep 2, 2025 Risk: low
C3is Inc. filed a Form 6-K on September 2, 2025, to report its preliminary financial and operating results for the three and six months ended June 30, 2025. The
C3is Inc. Files August 2025 Report with Shareholder Meeting Docs — 6-K · Aug 29, 2025 Risk: low
C3is Inc. filed a Form 6-K on August 29, 2025, reporting its activities for August 2025. The filing includes Exhibit 99.1, a Proxy Statement for the 2025 Annual
C3is Inc. Files 6-K with Q1 2025 Financials — 6-K · Jun 25, 2025 Risk: medium
C3is Inc. filed a Form 6-K on June 25, 2025, incorporating by reference its unaudited interim financial statements for the three months ended March 31, 2025. Th
C3is Inc. Reports Q1 2025 Financial Results — 6-K · May 16, 2025 Risk: low
C3is Inc. filed a Form 6-K on May 16, 2025, to report its financial and operating results for the three months ended March 31, 2025. The filing includes a press
C3is Inc. Files 2024 Annual Report — 20-F · Apr 28, 2025 Risk: medium
C3is Inc. filed its 20-F annual report for the fiscal year ending December 31, 2024. The company, incorporated in 1T and headquartered in Athens, Greece, operat
C3is Inc. Executes 1-for-6 Reverse Stock Split — 6-K · Apr 4, 2025 Risk: medium
On April 3, 2025, C3is Inc. implemented a one-for-six reverse stock split, amending its Restated Articles of Incorporation. This action was effective as of 11:5
C3is Inc. Announces 1-for-6 Reverse Stock Split — 6-K · Apr 2, 2025 Risk: medium
C3is Inc. announced a one-for-six (1-for-6) reverse stock split of its common stock, par value $0.01 per share. This corporate action will take effect at 11:59
C3is Inc. Reports Q4 2024 Unaudited Financial Results — 6-K · Mar 12, 2025 Risk: low
C3is Inc. filed a Form 6-K on March 12, 2025, reporting its unaudited financial and operating results for the three and twelve months ended December 31, 2024. T
C3is Inc. Discloses Reverse Stock Split — 6-K · Feb 21, 2025 Risk: medium
C3is Inc. filed a Form 6-K on February 21, 2025, to disclose a reverse stock split that occurred on December 31, 2024. The filing is a report of a foreign priva
C3is Inc. Files 6-K with Shareholder Meeting Documents — 6-K · Feb 18, 2025 Risk: low
C3is Inc. filed a Form 6-K on February 18, 2025, reporting on its activities for February 2025. The filing includes Exhibit 99.1, a Proxy Statement for a Specia
C3is Inc. Executes 1-for-2.5 Reverse Stock Split — 6-K · Jan 2, 2025 Risk: medium
On December 31, 2024, C3is Inc. filed an amendment to its Restated Articles of Incorporation to implement a one-for-2.5 reverse stock split. This action was eff
C3is Inc. Reports Q3 2024 Financial Results — 6-K · Nov 19, 2024 Risk: low
C3is Inc. filed a Form 6-K on November 19, 2024, to report its financial and operating results for the three and nine months ended September 30, 2024. The repor
C3is Inc. Files 6-K for Q2 2024 Financials — 6-K · Sep 30, 2024 Risk: medium
C3is Inc. filed a 6-K report for the period ending June 30, 2024. The filing includes financial data for the second quarter of 2024 and the fiscal year ending D
C3is Inc. Ownership Update Filed — SC 13D/A · Sep 18, 2024 Risk: medium
Harry N. Vafias, through Flawless Management Inc. and Arethusa Properties Ltd, has filed an amendment (No. 2) to their Schedule 13D for C3is Inc. on September 1
C3is Inc. Files August 2024 Report with Shareholder Meeting Docs — 6-K · Aug 30, 2024 Risk: low
C3is Inc. filed a Form 6-K on August 30, 2024, to report on its activities for August 2024. The filing includes Exhibit 99.1 (Proxy Statement for the 2024 Annua
C3is Inc. Reports Q2 2024 Financial Results — 6-K · Aug 23, 2024 Risk: low
C3is Inc. filed a Form 6-K on August 23, 2024, to report its financial and operating results for the three and six months ended June 30, 2024. The report includ
Vafias Amends C3is Inc. Stake Filing — SC 13D/A · Jun 24, 2024 Risk: medium
Harry N. Vafias, through Flawless Management Inc. and Arethusa Properties Ltd, has amended their Schedule 13D filing for C3is Inc. on June 20, 2024. This amendm
C3is Inc. Reports Q1 2024 Financial Results — 6-K · May 28, 2024 Risk: medium
C3is Inc. filed a Form 6-K on May 28, 2024, to report its financial and operating results for the three months ended March 31, 2024. The filing includes Exhibit
SC 13G Filing — SC 13G · May 24, 2024
Vafias Group Reports 10% Stake in C3is Inc. — SC 13D · May 20, 2024 Risk: medium
Harry N. Vafias, through Flawless Management Inc. and Arethusa Properties Ltd, has reported a beneficial ownership of 10.0% of C3is Inc. common stock as of May
Imperial Petroleum Amends C3is Inc. Stake Filing — SC 13D/A · May 1, 2024 Risk: medium
Imperial Petroleum Inc. filed an amendment (No. 3) to its Schedule 13D on May 1, 2024, concerning C3is Inc. The filing indicates a change in the beneficial owne
C3is Inc. Files 20-F Annual Report for Fiscal Year 2023 — 20-F · Apr 30, 2024 Risk: medium
C3is Inc. (CISS) filed a Foreign Annual Report (20-F) with the SEC on April 30, 2024. C3is Inc. filed its 20-F annual report for the fiscal year ended December
C3is Inc. Executes 1-for-100 Reverse Stock Split — 6-K · Apr 12, 2024 Risk: medium
On April 11, 2024, C3is Inc. announced it has filed an amendment to its Restated Articles of Incorporation to implement a one-for-100 reverse stock split for it
C3is Inc. Files Preliminary Q4 and FY 2023 Results — 6-K · Mar 26, 2024 Risk: low
C3is Inc. filed a Form 6-K on March 26, 2024, to report its preliminary financial and operating results for the fourth quarter and full year ended December 31,
SC 13G Filing — SC 13G · Mar 25, 2024
Imperial Petroleum amends C3is Inc. filing — SC 13D/A · Mar 20, 2024 Risk: medium
Imperial Petroleum Inc. filed an amendment (No. 2) to its Schedule 13D on March 20, 2024, regarding its holdings in C3is Inc. The filing indicates a change in b
C3is Inc. Completes Public Offering of 120M Units — 6-K · Mar 19, 2024 Risk: medium
On March 19, 2024, C3is Inc. completed a public offering of 120,000,000 units. These units comprised 70,000,000 common units, with each common unit including on
C3is Inc. Receives Nasdaq Delisting Determination — 6-K · Mar 15, 2024 Risk: high
C3is Inc. received a Delisting Determination Letter from Nasdaq on March 15, 2024. This filing incorporates by reference a press release dated March 15, 2024, w
C3is Inc. Gets 180-Day NASDAQ Extension for Bid Price Compliance — 6-K · Feb 22, 2024 Risk: medium
C3is Inc. announced on February 22, 2024, that NASDAQ has granted it a 180-day extension to regain compliance with the minimum bid price rule. This extension pr
S.H.N. Financial Investments Takes 9.99% Stake in C3is Inc. — SC 13G · Feb 9, 2024 Risk: low
S.H.N. Financial Investments Ltd., an Israeli company, has reported acquiring 2,000,000 shares of C3is Inc. common stock, representing a significant 9.99% owner
L1 Capital Takes 1.5M Share Stake in C3is Inc. — SC 13G · Jan 29, 2024
L1 Capital Global Opportunities Master Fund, Ltd. reported acquiring 1,500,000 shares of C3is Inc. common stock, representing a significant stake in the deep-se
Imperial Petroleum Amends C3is Inc. Stake on Jan 23, 2024 — SC 13D/A · Jan 24, 2024
Imperial Petroleum Inc. filed an amended Schedule 13D/A on January 23, 2024, regarding its ownership in C3is Inc. This amendment indicates a change in their ben
C3is Completes 28M Unit Public Offering; Aegis Exercises Over-Allotment — 6-K · Jan 23, 2024
On January 23, 2024, C3is Inc. completed a public offering of 28,000,000 units, raising capital by selling 6,660,000 common units and 21,340,000 pre-funded unit

Risk Profile

Risk Assessment: Of CISS's 34 recent filings, 1 were flagged as high-risk, 22 as medium-risk, and 11 as low-risk. The overall risk profile suggests moderate risk with a balanced mix of positive and cautionary disclosures.

Key Executives

Vafias family
Nina Pyndiah
Harry N. Vafias
January 25, 2024

Top Tags

sec-filing (8) · financial-results (8) · 6-K (6) · reverse-stock-split (5) · ownership-change (5) · corporate-action (4) · amendment (4) · shipping (3) · offering (3) · quarterly-report (3)

Key Numbers

Vessel Purchase Price: $16.88M — Cost of the acquired product tanker
Tanker Capacity: 50,000 dwt — Size of the acquired vessel
Vessel Year Built: 2008 — Age of the acquired tanker
Units Offered: 7,500,000 units — Total number of units in the registered offering.
Common Units Offered: 1,700,000 common units — Specific component of the offering, including common shares and warrants.
Shares of Common Stock: 800,000 — Number of shares to be sold in the registered direct offering.
Financial Period: Q1 2025 — Financial results for the three months ended March 31, 2025, are included.
Fiscal Year End: 2024 — The period covered by the 20-F filing.
Fiscal Year End Month/Day: 1231 — Indicates the end of the fiscal year for reporting.
Reverse Stock Split Ratio: 1-for-6 — Indicates that every six shares will be consolidated into one share.
Beneficial Ownership: 10.0% — Harry N. Vafias and associated entities hold this percentage of C3is Inc. common stock.
Filing Date: 2024-04-30 — Date the 20-F report was filed
SEC File Number: 001-41717 — SEC file number for C3is Inc.
Extension Period: 180-day — Time granted by NASDAQ to regain compliance
Announcement Date: February 22, 2024 — Date C3is Inc. issued the press release

Forward-Looking Statements

{"claim":"C3is Inc. stock may experience increased trading volume due to the disclosed institutional investment.","entity":"C3is Inc.","targetDate":"Q1 2024","confidence":"medium"}
{"claim":"Other institutional investors might take notice of S.H.N. Financial Investments Ltd.'s stake and conduct their own due diligence on C3is Inc.","entity":"C3is Inc.","targetDate":"Q2 2024","confidence":"medium"}

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Frequently Asked Questions

What are the latest SEC filings for C3is INC. (CISS)?

C3is INC. has 39 recent SEC filings from Jan 2024 to Apr 2026, including 27 6-K, 5 SC 13D/A, 4 SC 13G. Each filing includes an AI-generated plain-English summary.

What is the overall sentiment of CISS filings?

Across 39 filings, the sentiment breakdown is: 2 bullish, 2 bearish, 35 neutral. The dominant sentiment is neutral.

Where can I find C3is INC. SEC filings explained simply?

ReadTheFiling provides AI-powered plain-English summaries of all C3is INC. (CISS) SEC filings, including 10-K annual reports, 10-Q quarterly reports, 8-K current reports, and insider trades.

What are the key financial highlights for C3is INC.?

Financial highlights for C3is INC. are available when 10-K or 10-Q filings are enriched with AI analysis. Check back as new filings are processed.

What is the investment thesis for CISS?

The investment thesis for CISS includes bull, base, and bear case scenarios derived from AI analysis of recent SEC filings.

Who are the key executives at C3is INC.?

Key executives identified across C3is INC.'s filings include Vafias family, Nina Pyndiah, Harry N. Vafias, January 25, 2024.

What are the main risk factors for C3is INC. stock?

Of CISS's 34 assessed filings, 1 were flagged high-risk, 22 medium-risk, and 11 low-risk.

What are recent predictions and forward guidance from C3is INC.?

Recent forward-looking statements from C3is INC. include guidance on {"claim":"C3is Inc. stock may experience increased trading volume due to the disclosed institutional investment.","entit and 1 other predictions.