People said Claude Cowork research preview would kill
Thomson Reuters
Legal and professional information · NYSE: TRI
Why people said itAnthropic's Cowork legal plugin automates tasks such as contract review, so investors worried it could compete with paid legal research and data products.
Too early to tellShares slumped nearly 18% in tradingFebruary 2026
What was claimed ·
Anthropic’s announcement of specialized legal plugins for its Claude Cowork agentic desktop application sent Thomson ReutersHaystackID Newsline
Anthropic's legal plugin for Claude Cowork was said to threaten Thomson Reuters' legal research business.
Who else said it
- Anthropic's new AI tools deepen selloff in data analytics and software stocks, investors say · Reuters (via The Star) · Secondary source
- Anthropic’s AI Tools Rattle Software Stocks, Prompt Rethink of Sector Valuations · Decrypt · Secondary source
What happened
Thomson Reuters shares slumped by nearly 18% in trading on 3 February 2026 (Reuters' figure during trading), the day of the market reaction to Anthropic's legal plugin. The claim is under 12 months old, so it is too early to tell what effect, if any, followed.
Reuters reported that Thomson Reuters shares slumped by nearly 18% in trading on 3 February 2026 (on track for a record daily loss).
- Anthropic's new AI tools deepen selloff in data analytics and software stocks, investors say · Reuters (via The Star) · Secondary source
The verdict describes what happened to the product. It does not claim the AI release caused it. Last checked 11 November 2026. How verdicts are decided.