Twitter CEO and co-founder Jack Dorsey did not take a single penny in 2017 for running the micro-blogging platform. Dorsey declined for the third straight year any salary. He, however, has shares whose value went up 20 percent since the beginning of 2018. Dorsey, who is also the CEO of payments company Square, owns 65.5 million shares in the company which currently is worth $3.1 billion.

"As a testament to his commitment to and belief in Twitter's long-term value creation potential, our CEO, Jack Dorsey, declined all compensation for 2017," said a proxy statement that Twitter filed with the US Security and Exchange Commission (SEC).