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C3is Inc. (CISS) is the issuer in an amended ownership report listing holdings by three Jane Street entities. Jane Street Group, LLC reported beneficial ownership of 16,992 shares, or 0.5%; Jane Street Capital, LLC reported 13,492 shares, or 0.4%; and Jane Street Global Trading, LLC reported 3,500 shares, or 0.1%. Each entity reported shared voting and shared dispositive power over its stated amount, with zero sole voting and dispositive power.
Key Figures
Jane Street Group, LLC beneficial ownership:16,992 sharesJane Street Capital, LLC beneficial ownership:13,492 sharesJane Street Global Trading, LLC beneficial ownership:3,500 shares+3 more
6 metrics
Jane Street Group, LLC beneficial ownership16,992 sharesReported ownership; 0.5% of the class
Jane Street Capital, LLC beneficial ownership13,492 sharesReported ownership; 0.4% of the class
Jane Street Global Trading, LLC beneficial ownership3,500 sharesReported ownership; 0.1% of the class
Jane Street Group, LLC ownership of class0.5%Reported percentage of the class
Jane Street Capital, LLC ownership of class0.4%Reported percentage of the class
Jane Street Global Trading, LLC ownership of class0.1%Reported percentage of the class
Key Terms
beneficially owned, Shared Voting Power, Shared Dispositive Power
3 terms
beneficially ownedfinancial
"Amount beneficially owned: 16,992.00"
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.
Shared Voting Powerregulatory
"Shared Voting Power 16,992.00"
Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.
Shared Dispositive Powerregulatory
"Shared Dispositive Power 16,992.00"
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
How many CISS shares did the Jane Street entities report owning?
Jane Street Group, LLC reported 16,992 shares (0.5%); Jane Street Capital, LLC reported 13,492 shares (0.4%); and Jane Street Global Trading, LLC reported 3,500 shares (0.1%).
What voting power did Jane Street report over CISS shares?
Jane Street Group, LLC reported shared voting and shared dispositive power over 16,992 shares; Jane Street Capital, LLC reported both powers over 13,492 shares; and Jane Street Global Trading, LLC reported both powers over 3,500 shares. Each reported zero sole voting and sole dispositive power.
Jane Street Group, LLC
Jane Street Capital, LLC
Jane Street Global Trading, LLC
(b)
Address or principal business office or, if none, residence:
Jane Street Group, LLC
250 Vesey Street 3rd Floor
New York, NY 10281
Jane Street Capital, LLC
250 Vesey Street 3rd Floor
New York, NY 10281
Jane Street Global Trading, LLC
250 Vesey Street 3rd Floor
New York, NY 10281
(c)
Citizenship:
See Item 4 of Cover Page.
(d)
Title of class of securities:
Common Stock, par value $0.01 per share
(e)
CUSIP No.:
Y18284409
Item 3.
If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)
Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)
Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)
Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)
Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)
An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)
An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)
A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)
A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)
A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)
A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:
(k)
Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.
Ownership
(a)
Amount beneficially owned:
16,992.00
(b)
Percent of class:
0.5%
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
0
(ii) Shared power to vote or to direct the vote:
16,992.00
(iii) Sole power to dispose or to direct the disposition of:
0
(iv) Shared power to dispose or to direct the disposition of:
16,992.00
Item 5.
Ownership of 5 Percent or Less of a Class.
Ownership of 5 percent or less of a class
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
Not Applicable
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary.
Subsidiary
Jane Street Capital, LLC
Jane Street Global Trading, LLC
Item 8.
Identification and Classification of Members of the Group.
Not Applicable
Item 9.
Notice of Dissolution of Group.
Not Applicable
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.
