Jeremy Grantham acquired 7.81M Abbott Laboratories shares worth $1.04B. That's 2.99% of their equity portfolio (7th largest holding). The first Abbott Laboratories trade was made in Q1 2013. Since then Jeremy Grantham bought shares 24 more times and sold shares on 27 occasions. The stake costed the investor $425M, netting the investor a gain of 144% so far.