(Adds background throughout, share price in paragraph 5)
April 5 (Reuters) - Johnson & Johnson JNJ.N will buy
medical device maker Shockwave Medical SWAV.O for about $12.5
billion, the companies said on Friday, helping the healthcare
conglomerate boost its portfolio of medical devices.
The California-based company makes a device which uses
shockwaves to break down calcified plaque in heart vessels,
similar to how kidney stones are treated.
Under the deal, J&J would pay $335 per share in cash for
the medical device maker. The offer price implies a 4.7% premium
to Shockwave's last close of $319.99 on Thursday.
Shockwave, a company that makes devices to treat heart
disease, has a market capitalization of about $12 billion,
according to LSEG data.
Shares of Shockwave rose 1% in premarket trading.
(Reporting by Sriparna Roy and Bhanvi Satija in Bengaluru;
Editing by Savio D'Souza)
((Sriparna.Roy@thomsonreuters.com;))