Navios Maritime Holdings is offering nearly 23% more for two series of preferred shares as it seeks to persuade investors to hand over the securities.

The New York-listed bulker owner, which is the parent of four other Navios group companies, said it is also giving preferred shareholders more time to take part in the deal.

Navios said it will pay $7.18 for each Series G preferred share, which is more than the $5.85