Star Bulk director granted 7,580 restricted shares

Erhardt Koert reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Erhardt Koert reported acquisition or exercise transactions in this Form 4 filing.

Star Bulk Carriers Corp. director Erhardt Koert received a grant of 7,580 common shares as restricted stock compensation. The award carried a grant price of $0.00 per share and is structured as an equity incentive rather than a market purchase. Following this grant, Koert directly holds 10,080 common shares. The restricted shares vest on November 20, 2026, subject to the terms and conditions of the restricted stock grant agreement.

Insider Trade Summary

Grant/Award: 7,580 shares

Grant/Award 1 txn

Insider Erhardt Koert

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common shares, par value $0.01 per share	7,580	$0.00	$0.00

Holdings After Transaction: Common shares, par value $0.01 per share — 10,080 shares (Direct)

Footnotes (1)

1. F1. Represents a grant of shares of restricted stock pursuant to a restricted stock grant agreement of the same date which vest on November 20, 2026 , subject to the terms and conditions of the agreement.

Key Figures

Restricted stock grant: 7,580 shares Grant price: $0.00 per share Post-grant holdings: 10,080 shares +1 more

4 metrics

Restricted stock grant 7,580 shares Grant of restricted common shares to director Erhardt Koert

Grant price $0.00 per share Reported transaction price for the restricted stock award

Post-grant holdings 10,080 shares Total common shares directly held by Erhardt Koert after grant

Vesting date November 20, 2026 Vesting date for the restricted stock grant, subject to conditions

Key Terms

restricted stock, grant, award, or other acquisition, vest

3 terms

restricted stock financial

"Represents a grant of shares of restricted stock pursuant to a restricted stock grant agreement"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

vest financial

"which vest on November 20, 2026 , subject to the terms and conditions"

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

FAQ

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

What insider transaction did Star Bulk Carriers (SBLK) director Erhardt Koert report?

Erhardt Koert reported receiving a grant of 7,580 restricted common shares of Star Bulk Carriers as equity compensation. The Form 4 shows this as a grant or award transaction, not an open-market purchase or sale, with a reported price of $0.00 per share.

How many Star Bulk Carriers (SBLK) shares does Erhardt Koert hold after this grant?

After the restricted stock grant, Erhardt Koert directly holds 10,080 common shares of Star Bulk Carriers. This total reflects his updated ownership position disclosed in the Form 4, combining previously held shares with the newly awarded restricted stock.

When do Erhardt Koert’s restricted Star Bulk Carriers (SBLK) shares vest?

The 7,580 restricted shares granted to Erhardt Koert vest on November 20, 2026. Vesting is subject to the terms and conditions of the restricted stock grant agreement referenced in the Form 4 footnote for this equity award.

Was the Star Bulk Carriers (SBLK) insider transaction a market buy or sell?

The transaction was not a market buy or sell; it was a grant of restricted stock. The Form 4 lists transaction code A for a grant, award, or other acquisition, and reports a per-share price of $0.00 as typical for equity compensation.

What type of security did Erhardt Koert receive from Star Bulk Carriers (SBLK)?

Erhardt Koert received restricted common shares of Star Bulk Carriers, each with a par value of $0.01. The award is documented as a grant of restricted stock that will vest in the future under the applicable grant agreement terms.

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

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Accepted by SEC EDGAR 06/16/2026 - 11:58 AM EDT 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^*

Erhardt Koert

(Last) (First) (Middle)

C/O SCHWARTZ & WEISS, P.C.

457 MADISON AVENUE

(Street)

NEW YORK NEW YORK 10022

(City) (State) (Zip)

UNITED STATES

(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)
06/12/2026

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	06/12/2026		A(1)		7,580	A	$0	10,080	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:

1. Represents a grant of shares of restricted stock pursuant to a restricted stock grant agreement of the same date which vest on November 20, 2026 , subject to the terms and conditions of the agreement.

	Koert Erhardt	06/16/2026
	** 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)