 Traeger Inc.s is set to go public Thursday after grill makers initial public offering priced overnight at the top of the expected range, to value the Utah-based company at about 2.12 billion. The company raised 423.5 million, as it sold 23,529,411 share in the IPO, which priced at 18 a share, compared with an expectation of between 16 and 18 a share. 