** Shares of contract research firm IQVIA Holdings IQV.N rise 2.26% to $167.77 premarket
** Co says it will acquire five Charles River CRL.N labs that work on early-stage drug discovery
** Deal expands co's platform in oncology, neurology, immunology, metabolism and rare diseases - IQV
** Co says move strengthens ability to support pharma and biotech clients from early discovery through clinical development
** Financial terms undisclosed; transaction expected to close in Q2, co says
** Stock up ~15% in 2025
(Reporting by Sahil Pandey in Bengaluru)
((Sahil.Pandey@thomsonreuters.com))