Relx, Pearson and Informa slide as Anthropic launches AI legal tool

(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.

On its website, Anthropic described the tool as an AI-powered productivity plugin for in-house legal teams, primarily designed for its agentic desktop application Cowork, although it also works in Claude Code.

The tool is part of 11 plugins designed to automate specific tasks within a company.

According to the GitHub page, the legal productivity plugin can "review contracts, triage NDAs, navigate compliance, assess risk, prep for meetings, and draft templated responses". All of this is configurable to an organisation's "specific playbook and risk tolerances," it said.

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.