Star Bulk Carriers officer sells 16,500 shares

Star Bulk Carriers Corp. Chief Strategy Officer Charis Plakantonaki reported an open-market sale of common shares.

Rhea-AI Filing Summary

Star Bulk Carriers Corp. Chief Strategy Officer Charis Plakantonaki reported an open-market sale of common shares. On April 8, 2026, she sold 16,500 common shares at an average price of $24.5564 per share. Following this transaction, she directly owns 60,228 common shares of the company.

Insights

Insider trading and governance analyst

Star Bulk’s strategy chief executed a routine open-market share sale.

The Chief Strategy Officer, Charis Plakantonaki, sold 16,500 Star Bulk common shares at $24.5564 each in an open-market transaction. This is disclosed as a standard sale of non-derivative common stock, with no derivative exercises reported.

After the sale, she continues to hold 60,228 common shares directly, indicating she retains a substantial equity stake. The filing does not reference any trading plan or related entities, and shows no remaining derivative positions, suggesting a straightforward equity sale rather than a complex restructuring.

Insider Trade Summary

Net Seller: 16,500 shares

Net Sell 1 txn

Insider Plakantonaki Charis

Role Chief Strategy Officer

Sold 16,500 shs ($405K)

Type	Security	Shares	Price	Value
Sale	Common shares par value $ 0.01 per share	16,500	$24.5564	$405K

Holdings After Transaction: Common shares par value $ 0.01 per share — 60,228 shares (Direct)

Key Figures

Shares sold: 16,500 shares Sale price per share: $24.5564 per share Shares owned after transaction: 60,228 shares +1 more

4 metrics

Shares sold 16,500 shares Open-market sale of common shares on April 8, 2026

Sale price per share $24.5564 per share Average price for the 16,500 shares sold

Shares owned after transaction 60,228 shares Directly held common shares following the sale

Net shares sold 16,500 shares Net-sell direction with no offsetting buys in summary

Key Terms

open-market sale, Form 4/A, Common shares par value $ 0.01 per share, net-sell

4 terms

open-market sale financial

"transaction_action": "open-market sale""

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.

Form 4/A regulatory

"INSIDER FILING DATA (Form 4/A):"

Form 4/A is an amended filing that corrects or updates an earlier Form 4, the mandatory report that insiders (like company executives, directors, or large shareholders) must file when their ownership stakes change. Think of it as an edited receipt showing who bought or sold stock and when; investors use it to track insider confidence, detect potential conflicts, and spot trading patterns that might signal future company prospects.

Common shares par value $ 0.01 per share financial

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

net-sell financial

""netBuySellDirection": "net-sell""

FAQ

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

What insider transaction did SBLK’s Chief Strategy Officer report?

Star Bulk Carriers’ Chief Strategy Officer, Charis Plakantonaki, reported an open-market sale of company shares. She sold 16,500 common shares on April 8, 2026 at an average price of $24.5564 per share, according to the Form 4/A filing.

How many Star Bulk (SBLK) shares did the insider sell and at what price?

The insider sold 16,500 Star Bulk common shares in a single open-market transaction. The reported average sale price was $24.5564 per share, providing a clear view of the transaction’s scale and pricing based on the Form 4/A disclosure.

How many SBLK shares does the insider hold after this Form 4/A sale?

After the reported sale, the Chief Strategy Officer directly holds 60,228 Star Bulk common shares. This post-transaction holding shows she maintains a significant equity position in the company following the 16,500-share open-market disposition.

Was the SBLK insider transaction in derivatives or common shares?

The reported SBLK insider transaction involved non-derivative common shares only. The filing describes a sale of common shares with a par value of $0.01 per share and shows no derivative transactions or remaining derivative positions for this reporting person.

Does the SBLK Form 4/A show net buying or net selling activity?

The Form 4/A shows net selling activity by the insider. Transaction summary data indicates one sale totaling 16,500 shares, net sell direction, and no offsetting purchases or exercises, resulting in a pure reduction of the insider’s directly held common shares.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 04/16/2026 - 12:59 PM 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^*

Plakantonaki Charis

(Last) (First) (Middle)

57 PANAGIOTOU ANAGNOSTOPOULOU

(Street)

ATHENS 10672

(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 Strategy Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/08/2026

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)
04/16/2026

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	04/08/2026		S		16,500	D	$24.5564	60,228	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:

	Charis Plakantonaki	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)