Star Bulk COO sells 5,000 company shares

Star Bulk Carriers Corp. Chief Operating Officer Nikolaos Reskos reported an open-market sale of 5,000 common shares at $28.49 per share.

Rhea-AI Filing Summary

Star Bulk Carriers Corp. Chief Operating Officer Nikolaos Reskos reported an open-market sale of 5,000 common shares at $28.49 per share. After this transaction, he continues to hold 362,775 common shares directly, indicating he retains a substantial ownership position in the company.

Insights

Equity analyst

COO executes modest open-market sale while keeping a large stake.

Chief Operating Officer Nikolaos Reskos completed an open-market sale of 5,000 common shares of Star Bulk Carriers Corp. at $28.49 per share on June 1, 2026. The transaction is coded as a standard sale rather than an option exercise or tax event.

Following the sale, he directly owns 362,775 common shares. The filing shows no derivative positions such as options or warrants, suggesting the reported ownership is entirely in common shares. The sale represents only a fraction of his disclosed holdings, which points to a routine portfolio move rather than a transformative change.

Insider Trade Summary 10b5-1

Net Seller: 5,000 shares

Net Sell 1 txn

Insider Reskos Nikolaos

Role Chief Operating Officer

Sold 5,000 shs ($142K)

Type	Security	Shares	Price	Value
Sale	Common shares, par value $0.01 per share	5,000	$28.49	$142K

Holdings After Transaction: Common shares, par value $0.01 per share — 362,775 shares (Direct)

Key Figures

Shares sold: 5,000 shares Sale price per share: $28.49 per share Shares owned after sale: 362,775 shares

3 metrics

Shares sold 5,000 shares Open-market sale on June 1, 2026

Sale price per share $28.49 per share Average price for the 5,000-share sale

Shares owned after sale 362,775 shares Direct ownership following the transaction

Key Terms

open-market sale, non-derivative, Sale in open market or private transaction

3 terms

open-market sale financial

"transaction_action: "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

non-derivative financial

"transaction_type: "non-derivative""

Sale in open market or private transaction financial

"transaction_code_description: "Sale in open market or private transaction""

FAQ

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

What insider transaction did SBLK COO Nikolaos Reskos report?

Nikolaos Reskos reported an open-market sale of 5,000 Star Bulk Carriers Corp. common shares. The shares were sold as a non-derivative transaction, meaning they were regular shares, not options or other derivatives, and the sale was executed directly in the market.

At what price did the SBLK COO sell his Star Bulk Carriers shares?

The Star Bulk Carriers COO sold his 5,000 common shares at an average price of $28.49 per share. This price reflects the transaction value reported in the Form 4 and represents the consideration received per share in the open-market sale.

How many SBLK shares does Nikolaos Reskos own after this Form 4 sale?

After selling 5,000 common shares, Nikolaos Reskos directly owns 362,775 Star Bulk Carriers Corp. shares. This remaining position, disclosed in the Form 4, indicates he continues to hold a significant number of company shares following the reported transaction.

Was the SBLK COO’s transaction an option exercise or a straightforward share sale?

The transaction was a straightforward share sale, not an option exercise. It is classified as a non-derivative open-market sale, and the filing reports no related derivative transactions, such as stock options or warrants, associated with this particular trade.

Does the Form 4 for SBLK show any remaining derivative positions for the COO?

The Form 4 derivative summary is empty, indicating no remaining derivative positions like options or warrants are disclosed in this filing. The reported holdings for the COO therefore consist solely of common shares following the 5,000-share sale.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 06/03/2026 - 08:30 AM Learn about SEC filing dates

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).

X

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^*

Reskos Nikolaos

(Last) (First) (Middle)

40, AG KONSTANTINOU

(Street)

MAROUSI 15124

(City) (State) (Zip)

GREECE

(Country)

2. Issuer Name and Ticker or Trading Symbol
Star Bulk Carriers Corp. [ SBLK ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/01/2026

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
Common shares, par value $0.01 per share	06/01/2026		S		5,000	D	$28.49	362,775	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:

Remarks:

Daye of 10b5-1 (c) is 01/26/2026

	Nikolaos Reskos	06/03/2026
	** 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)