Rubico Inc. (RUBI) CEO and chairwoman listed as insider on Form 3

Rhea-AI Filing Summary

Rubico Inc. filed a Form 3 insider report for Ornithopoulou Kalliopi, who is identified as President, Chairwoman, CEO, and a director of the company. The filing lists no reported transactions, with buy, sell, acquire, and dispose share counts all shown as zero.

Key Figures

Insider buy transactions: 0 transactions Insider sell transactions: 0 transactions Derivative transactions: 0 transactions

3 metrics

Insider buy transactions 0 transactions buyCount in transactionSummary

Insider sell transactions 0 transactions sellCount in transactionSummary

Derivative transactions 0 transactions derivativeTransactionCount in transactionSummary

Key Terms

Form 3, reportingPersons, transactionSummary

3 terms

Form 3 regulatory

"INSIDER FILING DATA (Form 3): {"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

reportingPersons regulatory

""reportingPersons": [ { "name": "Ornithopoulou Kalliopi""

transactionSummary financial

""transactionSummary": { "buyCount": 0, "sellCount": 0"

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SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Ornithopoulou Kalliopi

(Last) (First) (Middle)

20 IOULIOU KAISARA STR.

(Street)

PAIANIA ATHENS 19002

(City) (State) (Zip)

GREECE

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
Rubico Inc. [ RUBI ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President, Chairwoman, and CEO

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

No securities are beneficially owned.

	/s/ Kalliopi Ornithopoulou	04/01/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)

FAQ

What does Rubico Inc. (RUBI) disclose in this Form 3 filing?

Rubico Inc. discloses a Form 3 insider report for Ornithopoulou Kalliopi. She is listed as President, Chairwoman, CEO, and director, and the summary shows zero insider buy, sell, acquire, or dispose transactions in this filing.

Who is the reporting person in Rubico Inc. (RUBI)'s Form 3?

The reporting person is Ornithopoulou Kalliopi. She is identified as a director and as an officer holding the titles President, Chairwoman, and CEO of Rubico Inc., according to the structured insider filing data provided.

Does Rubico Inc. (RUBI)'s Form 3 show any insider share purchases or sales?

No, the Form 3 data show no insider share purchases or sales. The transaction summary lists buyCount, sellCount, acquireCount, disposeCount, and netBuySellShares all as zero, indicating no reported trading activity in this filing.

Are there any derivative transactions reported in Rubico Inc. (RUBI)'s Form 3?

No derivative transactions are reported in this Form 3. The derivativeTransactionCount is zero, exerciseCount and exerciseShares are zero, and the derivativeSummary section is empty, indicating no options or similar instruments are listed here.

Does Rubico Inc. (RUBI)'s Form 3 include any footnote details?

The Form 3 structure includes a footnotes field, but it contains only a null entry in the provided data. No additional explanatory text about voting power, investment authority, or trading plans appears in the excerpt.