Af­ter decades in the big leagues, Mar­tin Mack­ay is go­ing small — and he's de­light­ed

Mar­tin Mack­ay has spent more than three decades in drug dis­cov­ery and de­vel­op­ment, reach­ing top R&D po­si­tions at Pfiz­er, As­traZeneca and Alex­ion, where he en­joyed big bud­gets in pur­suit of block­buster drugs and styl­ish­ly sur­vived a se­ries of big cor­po­rate shake­ups.

Now, the Scot­tish re­search ex­ec and some of his ex-Alex­ion col­leagues are go­ing small, in a big way. Mack­ay, for­mer Alex­ion SVP Stephen Uden and for­mer Alex­ion tax chief Jef­frey Fry­er band­ed to­geth­er af­ter the big Lud­wig Hantson purge in 2017 to start Rally­bio at the be­gin­ning of this year. And some mar­quee ven­ture groups are bankrolling their ef­fort with a $37 mil­lion A round.

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