As many biopharmas rethink plans to go public on less-than-welcoming U.S. markets, Hillevax Inc. forged ahead, pricing an upsized IPO April 28, offering 11.8 million shares at $17 apiece, the midpoint of its previously proposed range, for gross proceeds of about $200 million. That’s the highest amount raised in a U.S. IPO so far in 2022, which saw only nine companies go public on Nasdaq during the first quarter.