Bill Ackman's position in McDonald`s is currently worth $2.61B. That's 18.09% of their entire equity portfolio (3rd largest holding). The investor owns 1.17% of the outstanding McDonald`s stock. Bill Ackman acquired their 8.25M shares between 2005 and 2009. So far they never sold any shares in the company. The stake costed the investor $396M, netting the investor a gain of 560% so far.