Jim Simons acquired 472 Thousand National Instruments shares worth $28.2 Million. That's 0.04% of their equity portfolio (492nd largest holding). The first National Instruments trade was made in Q2 2013. Since then Jim Simons bought shares fourteen more times and sold shares on 22 occasions. The stake costed the investor $23.7 Million, netting the investor a gain of 19% so far.