** Drug developer Tango Therapeutics' TNGX.O shares rise 20% to $10.47 premarket
** Co announces pricing of underwritten offering of 21 mln shares and pre-funded warrants to purchase up to 3.2 mln shares at $8.66/share
** Offering, whose proceeds are expected to be ~$210 mln, priced at par with stock's last close of $8.66
** Investors include Farallon, TCGX, Balyasny, Woodline, Invus, Adage, Boxer, Logos, Nantahala, T. Rowe Price, and a large institutional investor, co says
** Leerink, Cantor are joint bookrunners for offering
** Concurrently, TNGX secures $15 mln more in a private placement
** Separately, co's experimental therapy TNG462 increases survival without progession of disease to 7.2 months in an early-stage study in a type of cancer tumors
** This supports our decision to initiate a pivotal trial in 2026 - TNGX
** Up to last close, stock up ~180% YTD
(Reporting by Sahil Pandey in Bengaluru)
((Sahil.Pandey@thomsonreuters.com))