Baillie Gifford's position in Alnylam Pharmaceuticals is currently worth $994 Million. That's 0.76% of their equity portfolio (30th largest holding). The investor owns 5.26% of the outstanding Alnylam Pharmaceuticals stock. The first Alnylam Pharmaceuticals trade was made in Q1 2013. Since then Baillie Gifford bought shares 25 more times and sold shares on eighteen occasions. The stake costed the investor $621 Million, netting the investor a gain of 60% so far.