stockholder
US /ˈstɑːkˌhoʊl.dɚ/
UK /ˈstɑːkˌhoʊl.dɚ/

1.
a person who owns shares in a company and therefore has an interest in its profitability and success
:
•
As a stockholder, she receives dividends from the company's profits.
•
The company's annual meeting is open to all stockholders.