Fast-mov­ing Si­en­na Bio vaults from buy­out to B round to $75M IPO

Si­en­na Bio­phar­ma­ceu­ti­cals has been mov­ing fast over the past 12 months.

A year ago the com­pa­ny com­plet­ed a $46 mil­lion Se­ries A, then five months lat­er bagged the UK biotech Cre­abilis in a deal her­ald­ed on­ly by its to­tal pack­age val­ue of $150 mil­lion. In April, they fol­lowed up with a $40 mil­lion B round.

Now the West­lake Vil­lage, CA-based biotech wants to go af­ter a $75 mil­lion IPO, hop­ing that in­vestors will buy in­to their promise of a two-pronged de­vel­op­ment strat­e­gy op­er­at­ed by a group of in­dus­try pros with deep ex­pe­ri­ence in the field.

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