Star Bulk COO buys 10,000 shares in offering

Star Bulk’s chief operating officer increased his direct holdings via a Greek parallel offering purchase.

Rhea-AI Filing Summary

Star Bulk Carriers Corp. (SBLK) reported that Chief Operating Officer Nikolaos Reskos purchased 10,000 common shares on September 15, 2026, in a Parallel Offering in Greece at EUR 24.50 per share (approximately $28.27). Following this transaction, he directly holds 410,875 common shares, and no Rule 10b5-1 plan is reported.

Insider Trade Summary

Net Buyer: 10,000 shares

Net Buy 1 txn

Insider Reskos Nikolaos

Role Chief Operating Officer

Bought 10,000 shs ($283K)

Type	Security	Shares	Price	Value
Purchase	Common shares, par value $0.01 per share	10,000	$28.27	$283K

Holdings After Transaction: Common shares, par value $0.01 per share — 410,875 shares (Direct)

Key Figures

Shares purchased: 10,000 shares Purchase price per share (EUR): EUR 24.50 per share Purchase price per share (USD equivalent): $28.27 per share +2 more

5 metrics

Shares purchased 10,000 shares Common shares bought by COO on September 15, 2026

Purchase price per share (EUR) EUR 24.50 per share Offering price in the Parallel Offering in Greece

Purchase price per share (USD equivalent) $28.27 per share USD equivalent of the EUR 24.50 offering price

Total consideration (approximate, USD) $282,700 10,000 shares at approximately $28.27 per share

Shares owned after transaction 410,875 shares Direct holdings of COO Nikolaos Reskos after the purchase

Key Terms

Parallel Offering, dual listing, EURONEXT ATHENS, Rule 10b5-1 plan

4 terms

Parallel Offering financial

"Participation in a Parallel Offering, undertaken by Star Bulk Carriers Corp in Greece"

dual listing market

"following its dual listing on EURONEXT ATHENS"

A dual listing is when a company makes the same shares available on two different stock exchanges, often in different countries, so investors can buy and sell the same ownership stake in more than one market—like a shop opening branches in two cities that sell the same product. It matters to investors because it can widen the pool of buyers, make shares easier to trade, expose the stock to different currencies and rules, and create price differences or arbitrage opportunities that affect returns and risk.

EURONEXT ATHENS market

"following its dual listing on EURONEXT ATHENS"

Rule 10b5-1 plan regulatory

"no Rule 10b5-1 plan is reported for this transaction"

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

FAQ

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

What insider transaction did SBLK report for Chief Operating Officer Nikolaos Reskos?

Star Bulk Carriers Corp. reported that Chief Operating Officer Nikolaos Reskos purchased 10,000 common shares on September 15, 2026, in a Parallel Offering in Greece, increasing his direct holdings to 410,875 shares.

At what price were the SBLK shares purchased in this Form 4 transaction?

The 10,000 Star Bulk Carriers Corp. shares were purchased at an offering price of EUR 24.50 per share, described as equivalent to $28.27 per share, as part of a Parallel Offering undertaken in Greece.

How many SBLK shares does the insider own after this reported purchase?

After the reported purchase, Chief Operating Officer Nikolaos Reskos directly owns 410,875 common shares of Star Bulk Carriers Corp., according to the Form 4 data.

Was the SBLK insider trade made under a Rule 10b5-1 trading plan?

No. The filing indicates that no Rule 10b5-1 plan is reported for this transaction; the document-level checkbox for Rule 10b5-1 plans is marked false.

What was the context of the SBLK insider’s share purchase?

The purchase was described as participation in a Parallel Offering, undertaken by Star Bulk Carriers Corp. in Greece following its dual listing on EURONEXT ATHENS, with the insider subscribing to 10,000 new common shares.

Is the reported SBLK insider ownership held directly or indirectly?

The Form 4 states that the 410,875 shares held after the transaction are owned directly by the insider, as indicated by the direct ownership code.

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

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Available on EDGAR 09/17/2026 - 08:30 AM Accepted by SEC EDGAR 09/17/2026 - 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).

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 151254

(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)
09/15/2026

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	09/15/2026		P		10,000	A	$28.27	410,875	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:

Participation in a Parallel Offering, undertaken by Star Bulk Carriers Corp in Greece, following its dual listing on EURONEXT ATHENS, by subscribing to 10,000 new common shares at the offering price of EUR 24.50 per share (or equivalent $28.27)

	Nikolaos Reskos	09/17/2026
	** 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)