Investor and financial figure profile
Jack Dorsey
Block cofounder and technology entrepreneur; informational profile.
Profile and relationships last checked .
About Jack Dorsey
Dorsey cofounded Block and has served as its principal executive officer and a director since July 2009. Its 2026 proxy records his board-chair role from October 2010 and the change of his executive title to Block Head in April 2022. The same filing describes two periods as Twitter’s chief executive: May 2007 to October 2008 and July 2015 to November 2021. He remained a Twitter director until May 2022. These dated roles explain his connection to technology-company leadership and financial technology. The profile describes those companies and responsibilities rather than assigning him a fund-management relationship.
Career and perspective
- Block’s 2026 proxy identifies him as Block Head and chairman.
- Former chief executive of Twitter.
Organizations and relationships
Block
EntrepreneurBlock cofounder and technology entrepreneur; informational profile.
Sources and editorial review
These primary sources support the profile and relationships. Biographies are original summaries; roles may change after the review date.