{"id":"clm_0C5218B4E2C6","entity":"stack-overflow","predicate":"owned_by","value":"Prosus","value_json":{"item":"Q67389109","note":"Prosus agreed to buy Stack Overflow in 2021, and a search result from 2026 still lists Prosus as owner. The 2008 date on the record is the site's launch date, not the date Prosus took ownership.","rank":"normal","check":{"on":"2026-10-30","url":"https://siliconangle.com/2021/06/02/stack-overflow-acquired-tech-investment-group-prosus-1-8b/","pages":2,"quote":"Tech investment firm Prosus NV today said it will pay $1.8 billion to acquire Stack Overflow, a hugely popular website  for developers that boasts more than 100 million users.","outcome":"checked"},"undated":true,"verdict":"confirmed","verified":"2026-10-29","wikidata":"Q549037","demoted_on":"2026-10-28","demoted_reason":"wikidata is an index, not a source: valid needs a primary source or two independent domains"},"valid_from":null,"undated":true,"valid_to":null,"published":"2021-06-02","recorded":"2026-10-27","confidence":0.8,"status":"valid","assertable":true,"superseded_by":null,"supersedes":[],"first_seen_at":"2026-10-27T21:44:24.661367+00:00","updated_at":"2026-10-30T07:30:40.940547+00:00","sources":[{"url":"https://www.wsj.com/articles/software-developer-community-stack-overflow-sold-to-tech-giant-prosus-for-1-8-billion-11622648400","tier":"secondary","publisher":null,"published_at":null},{"url":"https://www.wikidata.org/wiki/Q549037","tier":"secondary","publisher":"Wikidata","published_at":null},{"url":"https://siliconangle.com/2021/06/02/stack-overflow-acquired-tech-investment-group-prosus-1-8b/","tier":"secondary","publisher":"siliconangle.com","published_at":"2021-06-02T00:00:00+00:00"}],"evidence":{"by":"page-read","on":"2026-10-30","quote":"Tech investment firm Prosus NV today said it will pay $1.8 billion to acquire Stack Overflow, a hugely popular website  for developers that boasts more than 100 million users.","url":"https://siliconangle.com/2021/06/02/stack-overflow-acquired-tech-investment-group-prosus-1-8b/"},"legend":{"dates":"valid_from: when the claim took effect (a period figure: the day its period closed). published: the earliest day a source on the record published it (a filing's filing date, a post's date; null when no source carries one). recorded: the day AsOf first held it. A figure can take effect weeks before it is published.","why_not":{},"checked_by":{"page-read":"its source page states the value and the date"}}}