From wikipedia:
https://en.wikipedia.org/wiki/Board_of_directors
Inside director
An inside director is a director who is also an employee, officer, chief executive, major
shareholder, or someone similarly connected to the organization. Inside directors represent the interests of the entity's
stakeholders, and often have special knowledge of its inner workings, its financial or market position, and so on.
Typical inside directors are:
An inside director who is employed as a manager or executive of the organization is sometimes referred to as an executive director (not to be confused with the title
executive director sometimes used for the CEO position in some organizations).
Executive directors often have a specified area of responsibility in the organization, such as finance, marketing, human resources, or production.
[10]