Buy4

EUROSEAS LTD.

ESEA

Total Value

$74.6K

Net $74.6K bought

Filing Date

Oct 5, 2026

2 transactions

Purchases

$74.6K

2 transactions

Trade Summary

On Oct 2, 2026, Pittas Aristeidis P, Director, purchased $74.6K of EUROSEAS LTD. (ESEA) across 2 transactions. The filing covers Common stock and reflects net buying of $74.6K. Reported prices ranged from $71.07. Insider transactions are sourced from SEC Form 4 disclosures and should be reviewed alongside company fundamentals and the insider's broader trading history.

Price at the Time of the Trade

ESEA daily price with the insider's purchase marked at $71.07.

Bought in the lower half of the 6-month range · the stock trades 2% higher today.

Price data is delayed and provided for context only — not investment advice.

Insider Information

Name: Pittas Aristeidis P
Role: Director

Filing Details

Filing Date: Oct 5, 2026
Transaction Date: Oct 2, 2026
Accession Number: 0002127484-26-000019
Form Type: 4
Net Trading Amount: $74.6K

Non-Derivative Transactions

Date	Security	Shares	Price	Type	Value
Oct 2, 2026	Common stock	525	$71.07	Purchase	$37.3K
Oct 2, 2026	Common stock	525	$71.07	Purchase	$37.3K

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Footnotes

(F1)The Reporting Person owns a 25% interest and has effective control over voting and disposition of the shares owned by Family United Navigation Co. The Reporting Person disclaims beneficial ownership of the securities held by Family United Navigation Co. except to the extent of such reporting person's respective pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of the reported shares for purposes of Section 16 or for any other purpose.
(F2)The Reporting person's spouse owns 25% interest and has effective control over voting and disposition of the shares owned by Family United Navigation Co. The Reporting Person disclaims beneficial ownership of the securities held by Family United Navigation Co. except to the extent of such reporting person's respective pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of the reported shares for purposes of Section 16 or for any other purpose.

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^*

Pittas Aristeidis P

(Last)

(First)

(Middle)

4 MESSOGEIOU & EVROPIS STREET

(Street)

MAROUSSI

151 24

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
EUROSEAS LTD. [ ESEA ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
10/02/2026

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

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 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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common stock	10/02/2026		P		525⁽¹⁾	A	$71.0721	58,950	I	Family United Navigation Co.
Common stock	10/02/2026		P		525⁽²⁾	A	$71.0721	58,950	I	Family United Navigation Co.

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. The Reporting Person owns a 25% interest and has effective control over voting and disposition of the shares owned by Family United Navigation Co. The Reporting Person disclaims beneficial ownership of the securities held by Family United Navigation Co. except to the extent of such reporting person's respective pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of the reported shares for purposes of Section 16 or for any other purpose.

2. The Reporting person's spouse owns 25% interest and has effective control over voting and disposition of the shares owned by Family United Navigation Co. The Reporting Person disclaims beneficial ownership of the securities held by Family United Navigation Co. except to the extent of such reporting person's respective pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of the reported shares for purposes of Section 16 or for any other purpose.

	Aristides P. Pittas	10/05/2026
	** 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 as rendered by the SEC from accession 0002127484-26-000019.

EUROSEAS LTD.

Trade Summary

Price at the Time of the Trade

Company Information

Insider Information

Filing Details

Non-Derivative Transactions

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Footnotes

SEC Form 4

SEC Filing

SEC Form 4

Price at the Time of the Trade