There are some words that have exactly the same meaning:
Shareholder = stockholder
If you wanted to buy one share of stock in Google it would cost you today Dh 4,460 ($1214). This would make you a part owner of Google. You are a shareholder/stockholder. It means the same.
Stakeholder is anyone affected by an organization. Even though you and I don't own Google stock we are affected by how Google does business. We are stakeholders in Google.