United Maritime director reports 148,567 share stake

United Maritime Corp director Ioannis Kartsonas has filed an initial ownership report showing a direct holding of 148,567 shares of common stock.

Accepted by SEC EDGAR 03/18/2026 - 05:00 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

United Maritime Corp director Ioannis Kartsonas has filed an initial ownership report showing a direct holding of 148,567 shares of common stock. This Form 3 does not report a new purchase or sale, but establishes his existing equity position in the company.

Insider Trade Summary

Holdings reported, no transactions

Holdings

Insider KARTSONAS IOANNIS

Role Director

Type	Security	Shares	Price	Value
Holding	Shares of Common Stock, par value $0.0001 per share	--	--	--

Holdings: Shares of Common Stock, par value $0.0001 per share — 148,567 shares (Direct)

FAQ

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

What does the United Maritime Corp (USEA) Form 3 filing show?

The Form 3 shows director Ioannis Kartsonas directly holding 148,567 shares of United Maritime Corp common stock. This is an initial ownership statement, not a report of a new trade or transaction in the shares.

Did Ioannis Kartsonas buy or sell United Maritime (USEA) shares in this Form 3?

No buy or sell transaction is reported. The Form 3 simply lists that Ioannis Kartsonas directly holds 148,567 common shares of United Maritime Corp, establishing his existing ownership at the time of the filing.

How many United Maritime (USEA) shares does director Ioannis Kartsonas own?

Director Ioannis Kartsonas is reported as directly owning 148,567 shares of United Maritime Corp common stock. This figure comes from the Form 3 initial statement of beneficial ownership and reflects his position following the reported holding entry.

Is the United Maritime (USEA) Form 3 filing about derivative securities or options?

No derivative securities or options are shown. The Form 3 reports only shares of common stock, with a total of 148,567 shares held directly by director Ioannis Kartsonas and no listed derivative positions in the derivative summary.

What type of ownership does Ioannis Kartsonas report in United Maritime (USEA)?

The filing shows direct ownership of United Maritime Corp common stock. The transaction record identifies the ownership type as direct, with 148,567 shares listed as held directly by director Ioannis Kartsonas after the reported holding entry.

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

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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

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

KARTSONAS IOANNIS

(Last) (First) (Middle)

2 S END AVE

(Street)

NEW YORK NEW YORK 10280

(City) (State) (Zip)

UNITED STATES

(Country)

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

3. Issuer Name and Ticker or Trading Symbol
United Maritime Corp [ USEA ]

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
	Officer (give title below)		Other (specify below)

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)
Shares of Common Stock, par value $0.0001 per share	148,567	D

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:

	/s/ Ioannis Kartsonas	03/18/2026
	** 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)