** Shares of cancer therapy developer Harpoon Therapeutics
HARP.O doubles to $21.10 premarket
** U.S. drugmaker Merck & Co MRK.N is in advanced talks to
buy HARP for around $700 million, Bloomberg News reports
** MRK is in talks to pay about $23 per HARP share,
representing 118% premium to HARP's last close of $10.55
** A deal could be announced within days if talks don't fall
apart, the report added
** MRK and HARP did not immediately respond to Reuters
requests for comment
** HARP stock has risen 56.6% in 2023, while MRK fell 1.7%
(Reporting by Purvi Agarwal in Bengaluru)
((Purvi.Agarwal@thomsonreuters.com))