Star Bulk Carriers (SBLK) COO receives 48,100-share restricted stock grant with multi-year vesting

Rhea-AI Filing Summary

Reskos Nikolaos reported acquisition or exercise transactions in this Form 4 filing.

Star Bulk Carriers Corp. reported that Chief Operating Officer Nikolaos Reskos received a grant of 48,100 common shares as restricted stock on June 12, 2026. The award was granted at no cash cost per share, as part of his compensation.

According to the grant terms, 50% of the restricted shares vest on November 20, 2026, 25% vest on May 20, 2027, and the remaining 25% vest on May 20, 2029, subject to the agreement’s conditions. After this award, Reskos directly holds 410,875 common shares.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Reskos Nikolaos

Role Chief Operating Officer

Type	Security	Shares	Price	Value
Grant/Award	Common shares, par value $0.01 per share	48,100	$0.00	--

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

Footnotes (1)

1. [object Object]

Key Figures

Restricted shares granted: 48,100 shares Price per granted share: $0.00 per share Holdings after transaction: 410,875 shares +3 more

6 metrics

Restricted shares granted 48,100 shares Grant of restricted common shares on June 12, 2026

Price per granted share $0.00 per share Compensation grant, not a market purchase

Holdings after transaction 410,875 shares Direct common share ownership following grant

Initial vesting tranche 50% of grant Vests on November 20, 2026

Second vesting tranche 25% of grant Vests on May 20, 2027

Final vesting tranche 25% of grant Vests on May 20, 2029

Key Terms

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

4 terms

restricted stock financial

"Represents a grant of shares of restricted stock issued pursuant to a restricted stock 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.

restricted stock agreement financial

"shares of restricted stock issued pursuant to a restricted stock agreement dated and effective June 12, 2026"

vest financial

"Fifty per cent (50%) of the shares vest on November 20, 2026, twenty five per cent (25%) vest on May 20, 2027"

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.

grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

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Form 4 Insider Transactions: What Each Field Means →

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)
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)		48,100	A	$0	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:

1. Represents a grant of shares of restricted stock issued pursuant to a restricted stock agreement dated and effective June 12, 2026. Fifty per cent (50%) of the shares vest on November 20, 2026, twenty five per cent (25%) vest on May 20, 2027 and the remaining 25 per cent (25%) vest on May 20, 2029, in each case subject to the terms and conditions of the agreement

	Nikolaos Reskos	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)

FAQ

What did Star Bulk Carriers (SBLK) COO Nikolaos Reskos report in this Form 4?

COO Nikolaos Reskos reported receiving a grant of 48,100 restricted common shares of Star Bulk Carriers. The award is compensation-related, carries no cash exercise price, and increases his direct holdings to 410,875 common shares following the transaction.

How many Star Bulk Carriers (SBLK) shares were granted to the COO?

The COO received a grant of 48,100 common shares as restricted stock. These shares were awarded at a stated price of $0.00 per share, reflecting a compensation grant rather than a market purchase, and are subject to a multi-year vesting schedule.

What is the vesting schedule for the 48,100 restricted shares at Star Bulk Carriers (SBLK)?

The restricted stock vests in three stages: 50% on November 20, 2026, 25% on May 20, 2027, and the remaining 25% on May 20, 2029. Each vesting tranche is subject to the terms and conditions of the restricted stock agreement.

How many Star Bulk Carriers (SBLK) shares does the COO hold after this grant?

Following the restricted stock grant, the COO directly holds 410,875 common shares of Star Bulk Carriers. This figure includes the 48,100 newly granted restricted shares, which will vest over time under the specified schedule and agreement terms.

Was this Star Bulk Carriers (SBLK) transaction a market buy or sell by the COO?

The transaction was a grant of restricted stock classified as an acquisition under code “A,” not an open‑market buy or sell. The shares were awarded as compensation, with a transaction price per share recorded as $0.00.

What agreement governs the new restricted stock grant at Star Bulk Carriers (SBLK)?

The grant is governed by a restricted stock agreement dated and effective June 12, 2026. This agreement specifies the vesting dates, percentage tranches, and other terms and conditions applicable to the COO’s 48,100 restricted shares.