C3is Inc.: TowerView reports 0% common-stock stake

C3is Inc. (CISS) reports that TowerView LLC beneficially owns 0 shares of its common stock, or 0.0% of the class.

Rhea-AI Filing Summary

C3is Inc. (CISS) reports that TowerView LLC beneficially owns 0 shares of its common stock, or 0.0% of the class. The signature identifies Daniel R Tisch as a member.

Key Figures

Beneficially owned: 0 shares Percent of class: 0.0%

2 metrics

Beneficially owned 0 shares TowerView LLC's reported ownership of C3is Inc. common stock

Percent of class 0.0% TowerView LLC's reported beneficial ownership

Key Terms

beneficially owned, Sole power to vote or to direct the vote, Sole power to dispose or to direct the disposition of

3 terms

beneficially owned regulatory

"Amount beneficially owned: 0"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Sole power to vote or to direct the vote regulatory

"Sole power to vote or to direct the vote"

Sole power to dispose or to direct the disposition of regulatory

"Sole power to dispose or to direct the disposition of"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many CISS shares does TowerView LLC beneficially own?

TowerView LLC reports beneficial ownership of 0 shares of C3is Inc. (CISS) common stock, equal to 0.0% of the class.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 10/02/2026 - 08:54 AM Accepted by SEC EDGAR 10/02/2026 - 08:54 AM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

C3is Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

Y18284300

(CUSIP Number)

08/19/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): Y18284300

1

Names of Reporting Persons

TOWERVIEW LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power
6	Shared Voting Power
7	Sole Dispositive Power
8	Shared Dispositive Power

9

Aggregate Amount Beneficially Owned by Each Reporting Person

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

12

Type of Reporting Person (See Instructions)

SCHEDULE 13G

Item 1.
(a)	Name of issuer: C3is Inc.
(b)	Address of issuer's principal executive offices: 331 KIFISSIAS AVENUE, 331 KIFISSIAS AVENUE, ATHENS, GREECE, 14561.
Item 4.	Ownership
(a)	Amount beneficially owned: 0
(b)	Percent of class: 0.0 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote:
	(ii) Shared power to vote or to direct the vote:
	(iii) Sole power to dispose or to direct the disposition of:
	(iv) Shared power to dispose or to direct the disposition of:
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

TOWERVIEW LLC

Signature:	Daniel R Tisch
Name/Title:	Member
Date:	10/02/2026