Star Bulk Carriers has withdrawn from a $470.5 million agreement to purchase 16 dry bulk vessels from Diana Shipping, removing a significant fleet component from Diana's protracted effort to acquire Genco Shipping & Trading. The cancellation comes amid a broader wave of consolidation in the fragmented dry bulk sector, where operators have sought scale to improve cost efficiency and competitive positioning in a market characterized by cyclical freight rates and evolving environmental regulatory requirements.

The two Greek shipping companies mutually terminated the sale and purchase agreement at Star Bulk's request. The transaction, originally signed in March, was contingent upon Diana successfully completing its proposed acquisition of Genco.

The vessel package comprised one newcastlemax, six capesizes, seven ultramaxes, and two supramaxes, with a combined carrying capacity of approximately 1.8 million deadweight tons and an average fleet age of 11.4 years. Had the acquisition proceeded, Star Bulk's fleet would have expanded to roughly 157 vessels, reinforcing its position as one of the largest publicly listed dry bulk owners by vessel count.

Star Bulk Chief Executive Petros Pappas attributed the withdrawal to the lack of progress in the negotiations between Diana and Genco, while reiterating his support for the proposed takeover.

Diana stated that the termination of the vessel sale would have no impact on its offer for Genco or the $1.411 billion in financing committed by six international banks. The current proposal includes $24.80 per share in cash, subject to an adjustment for Genco's recently declared $0.80 dividend, along with one Diana share valued at $2.54 at the time the offer was presented.

Diana, already Genco's largest shareholder, allowed a separate hostile tender offer to expire on July 24 after approximately 11.78 million shares were tendered, representing 31.6% of the Genco stock not already under Diana's control.

The Athens-based Diana has maintained its cash-and-stock proposal before Genco's board despite losing a proxy contest in June, in which shareholders voted to re-elect all six Genco-backed directors. The standoff highlights the challenges acquirers face in completing hostile transactions in the shipping sector, where dual-class share structures, entrenched management, and disagreement over net asset valuations frequently complicate takeover attempts. With Star Bulk's vessel purchase now off the table, attention turns to whether Diana can secure Genco board engagement or pursue alternative paths to combine the two fleets.