** Akebia Therapeutics' AKBA.O shares down 25% in extended trading to $2.13 as co looks to raise equity
** Cambridge, Massachusetts-based biopharma focused on kidney disease commences stock offering; deal size not disclosed
** Leerink Partners and Piper Sandler are jt bookrunners
** With ~236.2 mln share outstanding, co has about $600 mln market cap, per LSEG data
** AKBA shares rose for fourth straight session gaining 68% along the way. Stock ended Weds up 11.4% at $2.84
** Last Thurs, co said it expects its anemia drug branded as Vafseo to generate $10-$11 mln of net product revs in Q1
(Lance Tupper is a Reuters market analyst. The views expressed are his own)
((lance.tupper@tr.com 1-646-279-6380))