Alice owns $30$ units of Hanover, Inc., stock.

Betty owns $10$ units of Hanover, Inc., stock.

Charles owns $50$ units of Hanover, Inc., stock.

Darren owns $10$ units of Hanover, Inc., stock.

Evan, Frank, and Gary are responsible for the overall management of Hanover,

Inc., so they make the decisions for the corporation.

Evan, Frank, and Gary decide to hire the following people:

Hank as CEO of Hanover, Inc.

Ingrid as CFO of Hanover, Inc.

Jason as COO of Hanover, Inc.

What are Alice, Betty, Charles, and Darren known as$?$