Guy Spier acquired 65.8 Thousand Mastercard Incorporated shares worth $26.9 Million. That's 12.20% of their entire equity portfolio (4th largest holding). Guy Spier acquired their 65.8 Thousand shares in Q4 2014. So far they never sold any shares in the company. The stake costed the investor $5.37 Million, netting the investor a gain of 401% so far.