** Shares of UK's Warehouse REIT Plc WHRW.L rise as much as 3.4% to 110p, their highest since April 2023
** Co says it could recommend Blackstone's BX.N 489 million-pound ($631.15 million) takeover proposal, if firm offer is made
** The 115 pence-per-share bid is a 39.6% premium to WHRW's closing price on February 28, the day before the initial bid was made
** The company had previously rejected four prior joint bids from Blackstone & Sixth Street
** Up to Wednesday's close, the stock has risen 35.4% YTD
($1 = 0.7748 pounds)
(Reporting by Raechel Thankam Job in Bengaluru)
((RaechelThankam.Job@thomsonreuters.com))