United Maritime director buys 15,000 shares

United Maritime Corp director Dimitrios Kostopoulos purchased 15,000 shares of common stock on July 31, 2026 at $2.74 per share in a purchase classified as an open market or private transaction.

Accepted by SEC EDGAR 08/04/2026 - 05:47 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

United Maritime Corp director Dimitrios Kostopoulos purchased 15,000 shares of common stock on July 31, 2026 at $2.74 per share in a purchase classified as an open market or private transaction. After this buy, he directly holds 335,000 shares of United Maritime Corp.

Insider Trade Summary

Net Buyer: 15,000 shares

Net Buy 1 txn

Insider Kostopoulos Dimitrios

Role Director

Bought 15,000 shs ($41K)

Type	Security	Shares	Price	Value
Purchase	Shares of Common Stock, par value $0.0001 per share	15,000	$2.74	$41K

Holdings After Transaction: Shares of Common Stock, par value $0.0001 per share — 335,000 shares (Direct)

Key Figures

Shares purchased: 15,000 shares Purchase price: $2.74 per share Shares owned after transaction: 335,000 shares +1 more

4 metrics

Shares purchased 15,000 shares Common stock acquired on July 31, 2026

Purchase price $2.74 per share Price paid for the 15,000 common shares

Shares owned after transaction 335,000 shares Director’s direct holdings following the July 31, 2026 purchase

Par value $0.0001 per share Par value of United Maritime Corp common stock

Key Terms

par value, open market or private transaction, direct or indirect ownership

3 terms

par value financial

"Shares of Common Stock, par value $0.0001 per share"

Par value is the fixed amount printed on a bond or stock that represents its original value when issued. It’s like the face value of a coin or bill—what the issuer promises to pay back or the starting price of a stock—though it often doesn’t change with market prices. It matters because it helps determine certain financial details, like how much the company will pay back at maturity.

open market or private transaction financial

"transaction_code_description: Purchase in open market or private transaction"

direct or indirect ownership financial

"direct_or_indirect field indicating D for direct ownership"

FAQ

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

What insider transaction did USEA director Dimitrios Kostopoulos report?

Director Dimitrios Kostopoulos reported a purchase of 15,000 shares of United Maritime Corp common stock on July 31, 2026 at $2.74 per share, classified as an open market or private transaction, increasing his direct holdings.

At what price did the USEA director buy the 15,000 shares?

The shares were bought at $2.74 per share. This per-share price applies to the 15,000 common shares acquired in the reported transaction dated July 31, 2026, described as an open market or private transaction.

How many United Maritime Corp (USEA) shares does the director hold after this trade?

After the reported purchase, Dimitrios Kostopoulos directly holds 335,000 shares of United Maritime Corp common stock. This figure reflects his post-transaction ownership as disclosed for the July 31, 2026 transaction.

Was the USEA director’s trade made under a Rule 10b5-1 trading plan?

The trade was not reported under a Rule 10b5-1 trading plan. The filing’s Rule 10b5-1 checkbox is unchecked, indicating the July 31, 2026 purchase was not designated as being made pursuant to such a pre-arranged plan.

What type of security did the USEA director acquire in this Form 4?

The transaction involved shares of common stock, par value $0.0001 per share, of United Maritime Corp. All 15,000 shares acquired in the July 31, 2026 transaction are reported as this non-derivative security type.

Is the USEA director’s ownership in this Form 4 direct or indirect?

The Form 4 classifies the director’s ownership as direct. After buying 15,000 shares on July 31, 2026, Dimitrios Kostopoulos is shown with 335,000 directly held shares of United Maritime Corp common stock.

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

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SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Kostopoulos Dimitrios

(Last) (First) (Middle)

154 VOULIAGMENIS AVENUE

(Street)

GLYFADA ATTICA 16674

(City) (State) (Zip)

GREECE

(Country)

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

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

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/31/2026

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

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

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

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Shares of Common Stock, par value $0.0001 per share	07/31/2026		P		15,000	A	$2.74	335,000	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Dimitrios Kostopoulos	08/04/2026
	** 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 4 (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 4: SEC 1474 (03-26)