By Echo Wang NEW YORK (Reuters) -BrightSpring Health Services, which is backed by private equity firm KKR & Co, on Thursday priced its initial public offering below its targeted range to raise $633 million. BrightSpring, which was aiming to price its offering between $15 and $18 apiece, sold about 53.3 million shares at $13 per share. The IPO values BrightSpring at $2.2 billion. BrightSpring’s underwhelming offering could hamper a potential recovery in the market for U.S. IPOs, which was starting to show early signs of a rebound, with some high-profile names expected to go public in the coming…