May's IPO parade marched onward Friday, with anti-infectives specialist Iterum Therapeutics plc raising about $80 million in an offering that started below-range and inched downward from there. The company's 6.15 million-share (NASDAQ:ITRM) offering priced at $13 per share instead of the planned $14 to $16. Shares closed at $12.85 on Friday.