Jack Dorsey is the Head and Chairperson of Block. Jack has held the CEO seat since 2009, and was previously President and Chief Executive Officer at Twitter.
Current company
Block
Block is an American financial services company.
financial servicesHeadquartered in San FranciscoFounded 2009NYSE: XYZ
Source: WikidataJack Dorsey has been CEO of Block since 2009. Before Block, Jack was President and Chief Executive Officer at Twitter from May 2007 until October 2008.
Career
Sources: Block, Inc. 2026 DEF 14A
Education
New York UniversityMissouri University of Science and TechnologySource
150+ decision makers at Block in Unify, vice president level and above. Choose a function to see who leads it.
Top decision makers at Block
Vice president level and above, most senior firstJack Dorsey leads a leadership team of 6 published executives. The most recent appointment is Arnaud Weber as Engineering Lead, in seat since November 2025.
Most senior 5 of 6
| Name | Title | In seat since |
|---|---|---|
| Jack Dorsey | Block Head and Chairperson | July 2009 |
| Amrita Ahuja | Foundational Lead, Chief Financial Officer, Chief Operating Officer and People Lead | January 2019 |
| Chrysty Esperanza | Counsel Lead, Chief Legal Officer, and Corporate Secretary | February 2023 |
| Brian Grassadonia | Ecosystem Lead | August 2024 |
| Owen Britton Jennings | Business Lead | Not stated |
Sources: Block 2026 DEF 14A
Jack Dorsey is the Head and Chairperson of Block. Jack has held the CEO seat since 2009, and was previously President and Chief Executive Officer at Twitter.
Jack Dorsey has been CEO of Block since 2009, according to Block, Inc. 2026 DEF 14A.
Jack Dorsey was President and Chief Executive Officer at Twitter from May 2007 until October 2008, according to Block, Inc. 2026 DEF 14A.
Jack Dorsey has been CEO of Block for 17 years, since 2009.
Amrita Ahuja (Foundational Lead, Chief Financial Officer, Chief Operating Officer and People Lead), Chrysty Esperanza (Counsel Lead, Chief Legal Officer, and Corporate Secretary), Brian Grassadonia (Ecosystem Lead), Owen Britton Jennings (Business Lead), and 1 more. Source: Block 2026 DEF 14A.
The seat holder is identified in Unify's professional profile dataset, then confirmed against the company's published leadership page, its SEC filings, and Wikipedia before publication. Career and education rows carry the public document they were taken from. Leadership team membership follows the company's own leadership page; in-seat dates come from filings where available and otherwise from the profile record. Company figures are read from the Unify headcount page for the same company and are profile coverage measures, never company-reported workforce totals. The employee preview lists vice president and senior vice president level profiles by department. No personal contact details are published.
