$Fisher & Paykel Healthcare Corp(FPH.AU)$ $Fisher & Paykel Healthcare Corporation Limited(FPH.NZ)$ $S&P/NZX 50(NZ50C.NZ)$ $S&P/NZX 50(NZ50G.NZ)$ Every investor in Fisher & Paykel Healthcare Corporation Limited (NZSE:FPH) should be aware of the most powerful shareholder groups. Large companies usually have institutions as shareholders, and we usually see insiders owning shares in smaller companies. We also tend to see lower insider ownership in companies that were previously publicly owned.Fisher & Paykel Healthcare is a pretty big company. It has a market capitalization of NZ$11b. Normally institu