# Jack Dorsey CEO roles entity: /record/jack-dorsey.md predicate: ceo_of page: /record/jack-dorsey/ceo_of as_of: 2026-11-08 cite: AsOf. "Jack Dorsey ceo of: Block, Inc.", as of 2009-07-01. Claim clm_E94C4CA5C0E0, https://asof.is/claim/clm_E94C4CA5C0E0, accessed 2026-11-08. Source: https://www.sec.gov/Archives/edgar/data/1512673/000162828026027203/sq-20260423.htm. As of November 8, 2026, the AsOf record says Jack Dorsey is CEO of Block, Inc. (since July 1, 2009), from a primary source (sec.gov) and 2 further sources (the-independent.com and sec.gov); it also holds 1 earlier term, Twitter, Inc. (2015 to 2021). 2 claims on Jack Dorsey's CEO roles, 1 open and 1 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted. ## Current CEO roles What the record asserts on 2026-11-08. - [Jack Dorsey](/record/jack-dorsey.md) | ceo_of | [Block, Inc.](/record/block.md) | valid 2009-07-01 to present | conf 0.85 | valid | [clm_E94C4CA5C0E0](/claim/clm_E94C4CA5C0E0.md) sources: https://www.the-independent.com/tech/jack-dorsey-block-layoffs-ai-b2928612.html, https://www.sec.gov/Archives/edgar/data/1512673/000162828026027203/sq-20260423.htm, https://www.wikidata.org/wiki/Q110778747, https://www.sec.gov/Archives/edgar/data/0001512673/000121465926005714/o57260px14a6g.htm ## Every dated value One claim per line, oldest first. Superseded claims stay visible. - [Jack Dorsey](/record/jack-dorsey.md) | ceo_of | [Block, Inc.](/record/block.md) | valid 2009-07-01 to present | conf 0.85 | valid | [clm_E94C4CA5C0E0](/claim/clm_E94C4CA5C0E0.md) sources: https://www.the-independent.com/tech/jack-dorsey-block-layoffs-ai-b2928612.html, https://www.sec.gov/Archives/edgar/data/1512673/000162828026027203/sq-20260423.htm, https://www.wikidata.org/wiki/Q110778747, https://www.sec.gov/Archives/edgar/data/0001512673/000121465926005714/o57260px14a6g.htm - [Jack Dorsey](/record/jack-dorsey.md) | ceo_of | [Twitter, Inc.](/record/twitter-inc.md) | valid 2015-09-30 to 2021-11-29 | conf 0.85 | superseded | [clm_AFDF7C7A62D5](/claim/clm_AFDF7C7A62D5.md) sources: https://www.wikidata.org/wiki/Q1390577, http://www.europe1.fr/economie/jack-dorsey-confirme-aux-commandes-de-twitter-2524801, https://www.sec.gov/Archives/edgar/data/1418091/000156459015008279/twtr-8k_20150930.htm, https://www.sec.gov/Archives/edgar/data/1418091/000119312521342255/d401229d8k.htm, https://twitter.com/jack/status/1465347002426867720/photo/1 ## Questions this record answers ### What is Jack Dorsey CEO of? Block, Inc., since July 1, 2009, as the record asserts on November 8, 2026, from a primary source (sec.gov) and 2 further sources (the-independent.com and sec.gov). ### Where was Jack Dorsey CEO before? Twitter, Inc. (September 30, 2015 to November 29, 2021), each a closed claim on the record with its sources. ### When did Jack Dorsey's CEO roles last change? The latest value on the record is Twitter, Inc., dated September 30, 2015; before it the record holds Block, Inc., dated July 1, 2009. ## Read on - This page: /record/jack-dorsey/ceo_of (markdown: /record/jack-dorsey/ceo_of.md) - Entity twin: /record/jack-dorsey.md ยท timeline: /timelines/jack-dorsey.md --- AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.