Springworks Therapeutics Inc., said it priced its IPO of 9 million shares of common stock at $18 each with gross proceeds expected to be $162 million. The underwriters have been granted a 30-day option to purchase up to 1.35 million additional shares of its common stock at the IPO price, less underwriting discounts and commissions. Shares (NASDAQ:SWTX) rocketed on their first day of trading Friday, ending the day at $22.63, up 25.7%.