Shoemaker Allbirds and its existing shareholders are seeking to raise up to $269 million in an initial public offering, adding to a fast-paced season for consumer-oriented listings in the United States. The San Francisco-based company is marketing 15.4 million shares for $12 to $14 each, according to its filing Monday with the US Securities and Exchange Commission. Existing backers are selling an additional 3.85 million shares in the listing. At the top of that range, Allbirds would have a market value of $2 billion based on the outstanding shares listed in its filing. The company is joining several other high-profile consumer names in going public. It comes a month after the IPO of On Holding, the maker of high-performance shoes backed by tennis star Roger Federer. Allbirds has been expanding beyond the wool sneakers favored by environmentally minded shoppers to include apparel. — BLOOMBERG NEWS