Ex-Retrophin BD chief flips his rare dis­ease start­up on­to Nas­daq via re­verse merg­er with Pro­teon

Pro­teon Ther­a­peu­tics’ lead and on­ly drug for kid­ney and vas­cu­lar dis­eases may not be worth much in in­vestors’ eyes, but its Nas­daq list­ing is prov­ing valu­able to Ar­Tara Ther­a­peu­tics as the shell for a re­verse merg­er.

An un­named syn­di­cate is in­ject­ing $42.5 mil­lion in­to the com­bined com­pa­ny, in which Ar­Tara will dom­i­nate in both name and share struc­ture. Cur­rent Pro­teon stock­hold­ers are col­lec­tive­ly as­signed around 10% of the new en­ti­ty $TARA.

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