The 56-year-old chief financial officer of investment bank Jefferies has died from the coronavirus, the firm said Sunday. He is the first senior Wall Street executive known to have succumbed to the disease, which has killed more than 30,000 people world-wide.

The New York-based firm announced Peg Broadbent’s death Sunday morning and named Teri Gendron, currently CFO of Jefferies’s financial-services arm, as his interim successor.

“His...