** Shares of Couchbase rise over 29.3% in early trading
** Private equity firm Haveli Investments makes $1.5 bln all-cash offer to buy the data developer
** BASE shareholders to receive $24.50 per share, representing a 29.4% premium to stock's June 18 close
** Agreement includes a go-shop period that ends on Monday, in which the company can consider alternative offers
** BASE shares up 21.4% YTD, they fell ~31% in 2024
(Reporting by Ateev Bhandari in Bengaluru)
((Ateev.Bhandari@thomsonreuters.com;))