C3is Inc. (CISS) IPO - S-1 Filing, Stock & Insider Activity
C3is Inc. IPO - Status & S-1 Filing
- Ticker: CISS
- Status: Registered - S-1 filed with the SEC
- S-1 filed: 2025-12-05
- Exchange: NASDAQ
- Expected price range: not yet disclosed (set in a later S-1/A or pricing amendment)
- Shares offered: 321,971
- SEC CIK: 0001951067 · View the S-1 on SEC EDGAR →
C3is Inc. is pre-IPO, so no insider Form 4 transactions have been filed yet. Once insiders begin reporting trades after the offering, they will appear on this page automatically.
Track every registration update on the InsiderAlpha IPO tracker.
C3is Inc. (CISS) - no SEC Form 4 insider filings recorded in the last 90 days. InsiderAlpha tracks every CISS SEC filing - Form 4, Form 144, and 8-K - in real time, including Rule 10b5-1 plan detection.
About C3is Inc. (CISS)
C3is Inc. trades under the ticker CISS.
| SEC CIK | 0001951067 |
|---|
Form 4 Transaction Code Reference
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in CISS insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
CISS Insider Trading - FAQ
- What is the latest insider trade for CISS?
- C3is Inc. (CISS) had 0 insider filings in the last 90 days. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
- How many insiders are buying CISS stock?
- 0 insider purchases of CISS were filed in the last 90 days.
- How many insiders are selling CISS stock?
- 0 insider sales of CISS were filed in the last 90 days.
- Where can I see CISS SEC filings (Form 4, 10-K, 10-Q, 8-K)?
- This page tracks CISS Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Companies with Insider Activity
Other companies in the InsiderAlpha index with a significant SEC Form 4 insider-trading footprint:
- $CLBK Columbia Financial, Inc./MD/
- $CLBR Colombier Acquisition Corp. III
- $CLBZ Collab Z Inc.
- $CLGN CollPlant Biotechnologies Ltd
- $CLIK Click Holdings Ltd.
- $CLOO VanEck CLO Opportunities Fund
- $CLRS Clear Street Group Inc.
- $CMIIU Columbus Circle Capital Corp II
- $CMND Clearmind Medicine Inc.
- $CMXHF CSL LTD
Learn More
- What is SEC Form 4?
- How to read insider buying signals
- Rule 10b5-1 trading plans explained
- The cluster buying signal
Open the live CISS dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.