An investor consortium including U.S. buyout firm Blackstone and Thomson Reuters sold 33 million shares in the London Stock Exchange Group worth about 2.7 billion pounds ($3.41 billion), Barclays Bank said on Wednesday.

The placing of shares was upsized from 28 million, the investment bank running the sale, added.

Thomson Reuters is the owner of Reuters News.

($1 = 0.7923 pounds)

(Reporting by Yadarisa Shabong in Bengaluru; Editing by Sonia Cheema)