Leone has guided Sequoia through several leadership transitions, first sharing the reins with Michael Moritz after founder Don Valentine stepped down, then taking over solo in 2012.
Even after passing the top job to Roelof Botha in 2022, he stayed involved behind the scenes.
With Botha stepping down last year and new co-stewards Alfred Lin and Pat Grady stepping up, bringing Leone back adds experience when it counts.
As Grady put it on X, When we realized how much gas Doug has left in the tank, we invited him to ramp back up as an investor at Sequoia.