Sema4: Nat Turner, Emily Leproust, Eli Casdin

Sema4 has appointed three new members to its board of directors, who will take up their posts after the firm has gone public through a planned merger with special purpose acquisition company CM Life Sciences.

The new members are Nat Turner, cofounder and CEO of Flatiron Health; Emily Leproust, cofounder and CEO of Twist Bioscience; and Eli Casdin, founder and chief investment officer of Casdin Capital.