curl https://financialmodelingprep.com/api/v3/institutional-holder/AAPL?apikey=YOUR_API_KEY
{
"holder" : "The Vanguard Group, Inc.",
"shares" : 336729000,
"dateReported" : "2020-03-31",
"change" : 7405180
}, {
"holder" : "Berkshire Hathaway Inc.",
"shares" : 245156000,
"dateReported" : "2020-03-31",
"change" : 0
}, {
"holder" : "BlackRock Institutional Trust Company, N.A.",
"shares" : 187355000,
"dateReported" : "2020-03-31",
"change" : -2500560
}, {
"holder" : "State Street Global Advisors (US)",
"shares" : 180559000,
"dateReported" : "2020-03-31",
"change" : -2295830
}, {
"holder" : "Fidelity Management & Research Company",
"shares" : 89764900,
"dateReported" : "2020-03-31",
"change" : -2990180
}, {
"holder" : "Geode Capital Management, L.L.C.",
"shares" : 64178600,
"dateReported" : "2020-03-31",
"change" : 1696500
}, ...