Relx, Pearson and Informa slide as Anthropic launches AI legal tool
By Michele Maatouk
Date: Tuesday 03 Feb 2026
(Sharecast News) - Relx, Pearson and Informa were all under the cosh on Tuesday after US AI company Anthropic released an AI-powered productivity tool for companies' in-house legal teams.
Shares of Dutch firm Wolters Kluwer, London Stock Exchange Group and Thomson Reuters were also sharply lower after Anthropic launched the tool on its GitHub page.
The tool is part of 11 plugins designed automate specific tasks within a company.
At 1230 GMT, Relx shares were down 11%, Pearson was down 4%, Informa was 3.8% lower and LSEG was off 7.3%. Wolters Kluwer had tumbled 8.8% in Amsterdam and Thomson Reuters was 8.3% lower in pre-market trade.
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