A $433 Billion Wall Street Giant Has a Reputation Problem. It’s Josh Harris’s Job to Fix It.

A $433 Billion Wall Street Giant Has a Reputation Problem. It’s Josh Harris’s Job to Fix It.

Josh Harris, the co-founder of

Apollo Global Management Inc.,



APO -2.64%



obsessively weighs the risks and implications of decisions he makes: whom to hire for a role at the private-equity giant, whether to move forward with an investment or which trades to make to fill out the roster of the Philadelphia 76ers, the NBA team he co-owns. Former employees describe him as a micromanager who is known to call people numerous times in a day to discuss a small investment and spend an entire meeting rehashing unresolved questions from his previous one. Even Mr. Harris's friends joke about sometimes getting multiple calls from him in a single day to discuss the same matter.



This approach has helped to make Apollo an investing giant with $433 billion in