Star Bulk director buys 2,000 shares at $28.27

Star Bulk Carriers Corp. (SBLK) director Nikolaos Karellis purchased 2,000 common shares on September 15, 2026 at $28.27 per share, participating in a Parallel Offering in Greece following the company’s dual listing on Euronext Athens.

Rhea-AI Filing Summary

Star Bulk Carriers Corp. (SBLK) director Nikolaos Karellis purchased 2,000 common shares on September 15, 2026 at $28.27 per share, participating in a Parallel Offering in Greece following the company’s dual listing on Euronext Athens. After this purchase, Karellis directly owns 9,580 common shares. No Rule 10b5-1 trading plan is reported.

Insider Trade Summary

Net Buyer: 2,000 shares

Net Buy 1 txn

Insider Karellis Nikolaos

Role Director

Bought 2,000 shs ($57K)

Type	Security	Shares	Price	Value
Purchase	Common shares, par value $0.01 per share	2,000	$28.27	$57K

Holdings After Transaction: Common shares, par value $0.01 per share — 9,580 shares (Direct)

Key Figures

Shares purchased: 2,000 shares Purchase price per share: $28.27 per share Total shares owned after transaction: 9,580 shares +1 more

4 metrics

Shares purchased 2,000 shares Common shares purchased by director on September 15, 2026

Purchase price per share $28.27 per share Equivalent to €24.50 offering price in Parallel Offering

Total shares owned after transaction 9,580 shares Director’s direct holdings after the reported purchase

Parallel Offering price in euros €24.50 per share Offering price for new common shares subscribed in Greece

Key Terms

Parallel Offering, dual listing, Rule 10b5-1, common shares, par value $0.01 per share

4 terms

Parallel Offering financial

"Participation in the Parallel Offering undertaken by STAR BULK CARRIERS CORP in Greece"

dual listing financial

"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.

Rule 10b5-1 regulatory

"No Rule 10b5-1 trading plan is reported"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

common shares, par value $0.01 per share financial

"Common shares, par value $0.01 per share"

FAQ

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

What insider transaction did SBLK director Nikolaos Karellis report?

Nikolaos Karellis reported a purchase of 2,000 Star Bulk Carriers (SBLK) common shares on September 15, 2026, as part of a Parallel Offering undertaken in Greece following the company’s dual listing on Euronext Athens.

At what price did the SBLK shares trade in this insider purchase?

The 2,000 Star Bulk Carriers (SBLK) common shares were purchased at $28.27 per share, which corresponds to an offering price of €24.50 per share in the Parallel Offering in Greece.

How many SBLK shares does Nikolaos Karellis own after this transaction?

Following the reported transaction, Nikolaos Karellis directly owns 9,580 Star Bulk Carriers (SBLK) common shares, according to the post-transaction holdings disclosed.

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

No. The filing indicates no Rule 10b5-1 trading plan for this transaction, meaning the purchase was not reported as being made pursuant to a pre-arranged trading plan.

What special offering did the SBLK insider participate in?

The insider participated in a Parallel Offering in Greece, undertaken by Star Bulk Carriers Corp. following its dual listing on Euronext Athens, subscribing for 2,000 new common shares at the offering price.

What type of security did the SBLK director purchase?

The transaction involved common shares, par value $0.01 per share, of Star Bulk Carriers Corp. (SBLK), classified as a non-derivative security in the filing.

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

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Available on EDGAR 09/16/2026 - 11:17 AM Accepted by SEC EDGAR 09/16/2026 - 11:16 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^*

Karellis Nikolaos

(Last) (First) (Middle)

C/O STAR BULK MANAGEMENT INC

40 AG KONSTANTINOU MAROUSI

(Street)

ATHENS 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)

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

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		2,000	A	$28.27	9,580	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 the Parallel Offering undertaken by STAR BULK CARRIERS CORP in Greece, following its dual listing on EURONEXT ATHENS, pursuant to which subscribed to 2000 new common shares at the offering price of euro 24.50 per share (or equivalent $28.27 per share)

	Nikolaos Karellis	09/16/2026
	** 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)