"As a result of the recent review, the following people, whom you are listed as manager, came up on the decedents list.

As a result of the recent review, the following people, for whom you are listed as manager, came up on the decedents' list.

or...

As a result of the recent review, the following people, who are under your management, came up on the decedents' list.

who because speaking of individuals; whom is an object, who a person.

What?

Just to clarify:

who is for people
whom is also for people

who is like he
whom is like him

For example:

He likes him.
Who likes whom?