Prognosis

A Harvard Professor Made $400 Million in Moderna’s Biotech IPO

Timothy Springer invested $5 million in the startup’s early days. His windfall is one in a series of savvy investments.

Timothy Springer smiles during an interview  in Boston, on Dec. 6.

Photographer: Scott Eisen/Bloomberg
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On the Sunday before Moderna Inc. launched one of the biggest initial public offerings in biotechnology history, one of its earliest investors was giving a lecture about rocks.

Timothy Springer, a professor of medicine at Harvard Medical School, is a collector of gongshi, or scholars’ rocks, from China. As Moderna executives prepared for the company’s much-anticipated stock-market debut, the unassuming academic spoke at the Boston Sculptors Gallery about his search for the fantastically shaped stones that have inspired poets and artists for centuries.