The Board of Directors of "Star Bulk Carriers Corp." (the "Company") Expresses Its Gratitude

Star Bulk Carriers completes a Greek share offering and secures Euronext Athens listing, raising €100.4 million in net proceeds for vessel investments.

Rhea-AI Summary

Star Bulk Carriers (SBLK) has completed a public offering of new common registered voting shares in Greece and secured approval for the listing and trading of all its common shares on the Main Market of the Regulated Securities Market of Euronext Athens as of 15 September 2026.

The offering generated gross proceeds of €107.8 million (€105.4 million from the Greek Public Offering and about €2.5 million from a Parallel Offering to a limited group of persons). After estimated offering and listing expenses of €7.4 million, net proceeds total €100.4 million. The company plans to use €57.02 million to fund the remaining €94.92 million investment plan for three vessels under construction and up to €43.4 million for further vessel acquisitions by its subsidiaries. Common shares will trade on Euronext Athens under ticker “SBLK”, with the opening price equal to the Nasdaq Global Select Market closing price on 15 September 2026, converted into euros at the European Central Bank EUR/USD reference rate.

Positive

• Gross proceeds of €107.8 million from Greek Public and Parallel Offerings
• Net proceeds of €100.4 million after €7.4 million in offering and listing expenses
• €57.02 million earmarked to complete €94.92 million investment plan for three vessels
• Up to €43.4 million allocated for additional newbuild or second-hand vessel acquisitions
• All common shares approved for trading on Euronext Athens Main Market under ticker SBLK

Negative

• None.

News Explained

On September 15, 2026, Star Bulk Carriers completed registration of the offering shares in beneficiaries’ securities accounts after Euronext Athens approved trading, leaving the new Athens listing pending its opening-price notice before the September 16 session.

Market Context

-4.35% was the 24-hour reaction recorded after the Sept. 4 offering and listing announcement; this n...

Analysis

-4.35% was the 24-hour reaction recorded after the Sept. 4 offering and listing announcement; this notice confirmed the completed offering, €100.4 million in net proceeds, and Euronext Athens listing approval.

Key Figures

Gross proceeds: €107.8 million Offering expenses: €7.4 million Net proceeds: €100.4 million +5 more

Gross proceeds

€107.8 million

Greek public offering and parallel offering, before expenses

Offering expenses

€7.4 million

Estimated offering and listing expenses

Net proceeds

€100.4 million

After estimated offering and listing expenses

Newbuilding investment

€57.02 million

Financing remaining investment in three vessels under construction

Additional vessel investments

Up to €43.4 million

Newbuild and second-hand vessel acquisitions by subsidiaries

Newbuilding funding completion

Within 2026

Expected timing for use of proceeds on vessels under construction

Acquisition funding period

Within 24 months

Expected period from commencement of Euronext Athens trading

Euronext Athens listing approval

September 15, 2026

Approval to list all Common Shares on the Main Market

Historical Context

3 past events · Latest: Sep 11

3 events

1. Sep 11

   Offering price announcement

   24h Move

   -1.1%

   Company priced 4.4 million new shares at €24.50 ahead of parallel listing.

2. Sep 08

   Offering price range

   24h Move

   -4.3%

   Company announced a €23.00–€25.50 price range for new shares.

3. Sep 04

   Parallel listing offering

   24h Move

   -4.3%

   Company launched Greek equity offering alongside planned Euronext Athens listing.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

parallel listing, securities act, regulation s, dematerialized form

4 terms

parallel listing financial

"for the parallel listing of all common shares issued and outstanding"

A parallel listing is when a company's same class of shares are listed and trade on more than one stock exchange at the same time, without creating a separate corporate entity. It matters to investors because it can expand who can buy the stock, change trading hours and currencies, affect liquidity and price differences between venues (creating arbitrage opportunities), and subject the company to multiple regulatory and reporting rules—like a store opening the same shop in two different malls.

securities act regulatory

"registered under the U.S. Securities Act of 1933"

A securities act is a law that governs the offering, sale and disclosure of stocks, bonds and other investment products to the public. It requires companies to provide clear, truthful information—like a product label for an investment—so buyers can understand risks and value before they invest. For investors, these rules reduce fraud, promote transparency, and help ensure fair access to market information.

regulation s regulatory

"in reliance on Regulation S under the Securities Act"

Regulation S is a set of rules that allows companies to sell securities (like shares or bonds) to investors outside the United States without having to follow all U.S. securities laws. It matters because it makes it easier for companies to raise money from international investors while still complying with U.S. regulations.

dematerialized form technical

"The Company’s Common Shares are held in dematerialized form"

A way of holding shares, bonds or other securities as electronic records instead of physical paper certificates. Like a bank ledger that shows who owns what, dematerialized form keeps ownership and transfer information in a centralized or networked system maintained by a registrar, depository, or broker. It matters to investors because it speeds trading and settlement, reduces the risk of lost or forged certificates, and makes corporate actions and record-keeping easier to manage.

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

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IMPORTANT NOTICE – DISCLAIMER

Not for release or distribution or publication in whole or in part, directly or indirectly, in or into, Australia, Canada, Japan or the Republic of South Africa. These materials do not contain or constitute an offer for sale or the solicitation of an offer to purchase securities in the United States, Australia, Canada, Japan or the Republic of South Africa.

The securities mentioned herein have not been and will not be registered under the U.S. Securities Act of 1933, as amended (the "Securities Act"), and may not be offered or sold in the United States or to U.S. persons absent such registration, except pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the Securities Act. No offering of securities was made in the United States or to U.S. persons.

ATHENS, Greece, Sept. 15, 2026 (GLOBE NEWSWIRE) -- to the investors for their response expressed to the recent public offering in Greece of new, common, registered, voting shares (the “New Shares”) of the Company for the parallel listing of all common shares issued and outstanding by the Company, including the New Shares (the “Common Shares”), on the Main Market of the Regulated Securities Market of Euronext Athens (the “Admission”).

In addition, we also extend our gratitude for their services to,
the Lead Advisor

the Co- Advisor

the Joint coordinators and the Bookrunners

the Lead Underwriters

and the Underwriters

the Law Firm “POTAMITISVEKRIS” and the auditing firm “Deloitte Certified Public Accountants S.A.”, which acted on behalf of the Joint Coordinators and Bookrunners, the Lead Advisor and Co-Advisor.

The total proceeds for the Company, prior to the deduction of public offering and listing expenses, amount to €107.8 mil. ($124.4¹mil.) (an amount of approximately €105.4 mil. ($121.6¹ mil.) raised through the Public Offering in Greece and an amount of approximately €2.5 mil. ($2.8¹ mil.) through the Parallel Offering to a limited group of persons in accordance with the Decision No. 4/379/18.04.2006 of the Board of Directors of the Hellenic Capital Market Commission).

After deducting the estimated offering and listing expenses borne by the Company, amounting to €7.4 mil. ($8.5 mil.), the total net proceeds amount to €100.4 mil. ($115.9¹ mil.). These funds will be allocated by the Company, in accordance with section 3 «REASONS FOR THE OFFER, USE OF PROCEEDS AND EXPENSES OF THE ISSUE/OFFER of the Prospectus dated 04.09.2026, as follows: (a) an amount of €57.0² mil. ($65.8 mil.) will be used to finance the remaining of the €94.9² million ($109.5 mil.) investment plan relating to the three vessels currently under construction and (b) the remaining amount, up to €43.4 million ($50.1¹mil.) will be used to finance new investments relating to the acquisition of newbuild and/or second-hand vessels by the Issuer’s subsidiaries. The use of the net proceeds referred to under (a) above is expected to be completed within 2026, while the use of the net proceeds referred to under (b) above is expected to be completed within twenty-four (24) months from the commencement of trading of the Common Shares on Euronext Athens. Pending final consummation of the net proceeds, as set forth above, the Company may elect to use proceeds, in accordance with applicable law, to engage in customary treasury, and cash management operations in the ordinary course of business or make temporary investments in cash equivalents, time deposits, commercial paper, government securities or other highly rated instruments.

Information to the investors about the use of the net proceeds raised will be made available through the websites of Euronext Athens and the Company.

The Company further informs that Euronext Athens on 15.09.2026, approved the listing to trading of all the Company’s Common Shares on the Main Market of the Regulated Securities Market of Euronext Athens. The Company’s Common Shares are held in dematerialized form and will be registered in the Share and the Securities Account in the Dematerialised Securities System, as provided by each beneficiary in the context of its participation in the Public Offering and the Parallel Offering to a limited group of persons. The registration of the Common Shares in the Securities Accounts of the beneficiaries in the Dematerialized Securities System of Euronext Securities Athens has been completed on Tuesday, 15.09.2026.

The ticker symbol of the Common Shares on Euronext Athens is ”SBLK”. The opening price on Euronext Athens will be equal to the closing price of the Common Shares on Nasdaq Global Select Market on 15.09.2026, converted from USD into EUR based on EUR/USD reference exchange rate published by the European Central Bank on 15.09.2026. An announcement regarding the opening price of the Common Shares on Euronext Athens will be published on Euronext Athens’ website and Company’s website on Wednesday 16 September 2026 prior to the opening of Euronext Athens.

The New Shares have not been, and will not be, registered under the U.S. federal securities laws or the securities laws of any other jurisdiction, and the New Shares may not be offered or sold in the United States or to U.S. persons unless an exemption from the registration requirements of the Securities Act is available. The New Shares were offered and sold to non-U.S. persons outside the United States in offshore transactions in reliance on Regulation S under the Securities Act.

Athens, Tuesday 15 September 2026
STAR BULK CARRIERS CORP

Important Notice – Disclaimer

This announcement includes “forward-looking statements,” with respect to our expectations or beliefs concerning future events. Words such as, but not limited to, “believe,” “expect,” “anticipate,” “estimate,” “intend,” “plan,” “targets,” “projects,” “likely,” “would,” “will,” “could,” “should,” “may,” “forecasts,” “potential,” “continue,” “possible” and similar expressions or phrases may identify forward-looking statements.

All forward-looking statements involve risks and uncertainties. The occurrence of the events described depend on many factors, some or all of which are not predictable or within our control. Important factors that, in our view, could cause actual results to differ materially from those discussed in the forward-looking statements include, but are not limited to, market conditions, disruptions to the mechanics required to operate cross-border trading, disruptions to trading on Euronext Athens, and other technical impediments to the commencement of trading. All future written and verbal forward-looking statements attributable to us or any person acting on our behalf are expressly qualified in their entirety by the cautionary statements contained or referred to in this section. We undertake no obligation, and specifically decline any obligation, except as required by law, to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

---

¹This figure has been converted into USD based on the EUR/USD exchange rate (€1 = 1.1539 USD) as of 15.09.2026 (Source: European Central Bank at Greek market close).
² This figure has been converted into EUR based on the EUR/USD exchange rate (€1 = 1.1539 USD) as of 15.09.2026 (Source: European Central Bank at Greek market close).

Contacts

Company:	Investor Relations / Financial Media:
Simos Spyrou, Christos Begleris	Nicolas Bornozis
Co ‐ Chief Financial Officers	President
Star Bulk Carriers Corp.	Capital Link, Inc.
c/o Star Bulk Management Inc.	230 Park Avenue, Suite 1540
40 Ag. Konstantinou Av.	New York, NY 10169
Maroussi 15124	Tel. (212) 661‐7566
Athens, Greece	E‐mail: starbulk@capitallink.com
Email: info@starbulk.com	www.capitallink.com
www.starbulk.com

Photos accompanying this announcement are available at 
https://www.globenewswire.com/NewsRoom/AttachmentNg/53364a20-944a-4d2a-9083-10dc730c2a37

https://www.globenewswire.com/NewsRoom/AttachmentNg/50f462d2-efa7-456d-ae44-e9d39f7b0c96

https://www.globenewswire.com/NewsRoom/AttachmentNg/16102d08-1e70-4c91-8f64-ad326fc3aad8

https://www.globenewswire.com/NewsRoom/AttachmentNg/aacf7ea3-5c06-4504-97f8-1db3c92a60c2

https://www.globenewswire.com/NewsRoom/AttachmentNg/154a3d81-a38e-460a-9efe-2b5bd857b798

https://www.globenewswire.com/NewsRoom/AttachmentNg/f0851e8c-70f2-495f-9ff5-0b2b57722b81

FAQ

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

How will Star Bulk Carriers allocate the net proceeds from the offering?

The company plans to use €57.02 million of the net proceeds to finance the remaining portion of the €94.92 million investment plan for three vessels currently under construction. The remaining amount, up to €43.4 million, is intended to finance new investments by the issuer’s subsidiaries in newbuild and/or second-hand vessels.

What is the expected timing for the use of the proceeds?

The use of the net proceeds allocated to the three vessels under construction is expected to be completed within 2026. The use of the remaining proceeds for new vessel investments is expected to be completed within 24 months from the commencement of trading of the common shares on Euronext Athens.

How was the offering structured between the Public Offering and the Parallel Offering?

Total gross proceeds of €107.8 million comprised approximately €105.4 million raised through the Public Offering in Greece and approximately €2.5 million raised through a Parallel Offering to a limited group of persons, carried out in accordance with Decision No. 4/379/18.04.2006 of the Board of Directors of the Hellenic Capital Market Commission.

How will the opening price of Star Bulk’s shares on Euronext Athens be determined?

The opening price of the common shares on Euronext Athens will equal the closing price of the company’s common shares on the Nasdaq Global Select Market on 15 September 2026, converted from USD into EUR using the EUR/USD reference exchange rate published by the European Central Bank on that date. An announcement with the opening price will be published on the Euronext Athens and company websites on 16 September 2026 before the market opens.

Where and how will investors’ shares be held following the listing on Euronext Athens?

The company’s common shares are held in dematerialized form and are registered in the Share and Securities Account in the Dematerialized Securities System of Euronext Securities Athens, as provided by each beneficiary in the context of participation in the Public Offering and the Parallel Offering. Registration of the common shares in the beneficiaries’ Securities Accounts was completed on 15 September 2026.

Where can investors find updates on the use of net proceeds?

Information for investors on the use of the net proceeds raised will be made available through the websites of Euronext Athens and Star Bulk Carriers, as stated by the company.

Were the new shares offered in the United States or to U.S. persons?

No offering of securities was made in the United States or to U.S. persons. The new shares have not been and will not be registered under U.S. federal securities laws or the securities laws of any other jurisdiction and may not be offered or sold in the United States or to U.S. persons unless an exemption from the registration requirements of the Securities Act is available. The new shares were offered and sold to non-U.S. persons outside the United States in offshore transactions in reliance on Regulation S under the Securities Act.