# Stack Overflow owners

entity: /record/stack-overflow.md  
predicate: owned_by  
page: /record/stack-overflow/owned_by  
as_of: 2026-10-31  

As of October 31, 2026, Stack Overflow's owner on the AsOf record is Prosus, undated on the record, from 2 secondary sources (wsj.com and siliconangle.com). The record holds 1 claim on Stack Overflow's owner, 1 still open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.

## Current owners

What the record asserts on 2026-10-31.

- [Stack Overflow](/record/stack-overflow.md) | owned_by | Prosus | valid undated to present | conf 0.80 | valid | [clm_0C5218B4E2C6](/claim/clm_0C5218B4E2C6.md)
  sources: https://www.wsj.com/articles/software-developer-community-stack-overflow-sold-to-tech-giant-prosus-for-1-8-billion-11622648400, https://www.wikidata.org/wiki/Q549037, https://siliconangle.com/2021/06/02/stack-overflow-acquired-tech-investment-group-prosus-1-8b/

## Every dated value

One claim per line, oldest first. Superseded claims stay visible.

- [Stack Overflow](/record/stack-overflow.md) | owned_by | Prosus | valid undated to present | conf 0.80 | valid | [clm_0C5218B4E2C6](/claim/clm_0C5218B4E2C6.md)
  sources: https://www.wsj.com/articles/software-developer-community-stack-overflow-sold-to-tech-giant-prosus-for-1-8-billion-11622648400, https://www.wikidata.org/wiki/Q549037, https://siliconangle.com/2021/06/02/stack-overflow-acquired-tech-investment-group-prosus-1-8b/

## Questions this record answers

### What is Stack Overflow's current owner?

Prosus, undated on the record, from 2 secondary sources (wsj.com and siliconangle.com). The record asserts this claim as of October 31, 2026 (status valid, confidence 0.80).


## Get this data

- JSON: /v1/entities/stack-overflow/owned_by (this fact) · /v1/entities/stack-overflow?predicates=owned_by (with the entity's coverage; add as_of=YYYY-MM-DD for a date)
- MCP: entity_state(entity: "stack-overflow", predicates: ["owned_by"], scope: "all")
- Entity twin: /record/stack-overflow.md · timeline: /timelines/stack-overflow.md

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AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.