TOKYO (Reuters) -Subway operator Tokyo Metro said on Friday it plans to list on the Tokyo Stock Exchange on Oct. 23, setting the stage for what would be Japan's largest initial public offering (IPO) in about six years.

The initial public offering of Tokyo Metro Co., one of two subway operators based in Japan’s capital, is seeking to raise around ¥319.6 billion ($2.24 billion), giving a big boost to the country’s market for new listings.

The company is offering 7.5 million shares for $17 to $19 apiece, according to a filing Wednesday

Obesity-focused biotech BioAge Labs said on Wednesday it was seeking a valuation of as much as $587 million in its initial public offering in the United States, according to a regulatory filing.

BioAge Labs Inc., a clinical-stage biotechnology company developing therapies for obesity and metabolic disease, is seeking to raise as much as $157.5 million in its initial public offering and a private placement.