Alnylam’s head of R&D leaves “to pursue other interests.” <A HREF="http://biz.yahoo.com/prnews/040719/nem032_1.html" target="_blank">http://biz.yahoo.com/prnews/040719/nem032_1.html</A> This makes the second recent IPO, where the R&D chief departed almost immediately after the IPO. It also happened at MEMY.