Star Bulk (SBLK) COO trims holdings with 10,000-share open sale

Rhea-AI Filing Summary

Star Bulk Carriers COO Nikolaos Reskos reported open-market sales totaling 10,000 common shares of the company. He sold 8,406 shares at $25.05 per share on April 15, 2026 and 1,594 shares at $25.00 per share on April 14, 2026. After these transactions, he directly holds 440,878 common shares, indicating he retained the vast majority of his position.

Insider Trade Summary

Net Seller: 10,000 shares ($250,420)

Net Sell 2 txns

Insider Reskos Nikolaos

Role COO

Sold 10,000 shs ($250K)

Type	Security	Shares	Price	Value
Sale	Common shares par value $0.01 per share	8,406	$25.05	$211K
Sale	Common shares par value $0.01 per share	1,594	$25.00	$40K

Holdings After Transaction: Common shares par value $0.01 per share — 440,878 shares (Direct)

Footnotes (1)

Key Figures

Shares sold April 15, 2026: 8,406 shares at $25.05 Shares sold April 14, 2026: 1,594 shares at $25.00 Total shares sold: 10,000 shares +2 more

5 metrics

Shares sold April 15, 2026 8,406 shares at $25.05 Open-market sale of common shares coded S

Shares sold April 14, 2026 1,594 shares at $25.00 Open-market sale of common shares coded S

Total shares sold 10,000 shares Net-sell shares from transaction summary

Shares held after latest sale 440,878 shares Direct ownership following April 15, 2026 transaction

Transaction code S (sale in open market) Non-derivative common share transactions

Key Terms

open-market sale, non-derivative, transaction code S, common shares par value $0.01 per share

4 terms

open-market sale financial

"transaction_action: "open-market sale" for common shares"

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" for common share sales"

transaction code S financial

"transaction_code: "S" described as sale in open market"

common shares par value $0.01 per share financial

"security_title: "Common shares par value $0.01 per share""

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)
	COO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/14/2026

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	04/14/2026		S		1,594	D	$25	449,284	D
Common shares par value $0.01 per share	04/15/2026		S		8,406	D	$25.05	440,878	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:

	NIKOLAOS RESKOS	04/16/2026
	** 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 insider transaction did SBLK COO Nikolaos Reskos report?

COO Nikolaos Reskos reported selling 10,000 Star Bulk Carriers common shares in open-market transactions. He sold 8,406 shares at $25.05 on April 15, 2026 and 1,594 shares at $25.00 on April 14, 2026, while maintaining a large remaining shareholding.

How many Star Bulk (SBLK) shares does the COO still hold after the sale?

After selling 10,000 common shares, COO Nikolaos Reskos directly holds 440,878 Star Bulk Carriers shares. This indicates the reported sales represent only a small portion of his overall position, with the bulk of his ownership in the company remaining unchanged by these trades.

On what dates did the SBLK COO sell his shares and at what prices?

Nikolaos Reskos sold Star Bulk Carriers common shares on April 14 and April 15, 2026. He sold 1,594 shares at $25.00 per share on April 14 and 8,406 shares at $25.05 per share on April 15 in open-market transactions.

What type of transactions did the SBLK COO use to sell his shares?

The COO’s sales were reported as open-market transactions coded “S” for non-derivative common shares. This indicates regular market sales rather than option exercises, gifts, or tax-withholding events, and reflects straightforward disposals of already-owned Star Bulk Carriers common stock.

How many Star Bulk (SBLK) shares in total did the COO sell in this Form 4?

Across two reported trades, COO Nikolaos Reskos sold a total of 10,000 Star Bulk Carriers common shares. The Form 4 transaction summary aggregates 8,406 shares sold on April 15, 2026 and 1,594 shares sold on April 14, 2026 into this combined net-sell amount.