Max Nisen, Columnist

Moderna’s Rich IPO Valuation Raises the Stakes for Investors

The biotech firm is burning cash like mad, and it will be years before it has a product on the market.

The ratio of big promises to actual data is pretty extreme.

Photographer: Adam Glanzman/Bloomberg
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Moderna Inc. could have picked a better time to go public.

But in the teeth of a difficult market, the Cambridge, Massachusetts-based biotech pulled off the sector’s biggest-ever IPO on Thursday, raising more than $600 million at a rich $7.5 billion valuation. Its shares were priced at $23 each, at the midpoint of the expected range.