ONCE - Spark Therapeutics, Inc.

NasdaqGS - NasdaqGS Real Time Price. Currency in USD

Major Holders

Currency in USD
Breakdown
7.45%% of Shares Held by All Insider
92.25%% of Shares Held by Institutions
99.67%% of Float Held by Institutions
241Number of Institutions Holding Shares

Top Institutional Holders

HolderSharesDate Reported% OutValue
FMR, LLC3,891,577Dec 30, 201810.25%152,316,323
Blackrock Inc.3,106,298Dec 30, 20188.18%121,580,503
Vanguard Group, Inc. (The)2,917,324Dec 30, 20187.68%114,184,061
Wellington Management Company, LLP2,835,671Dec 30, 20187.47%110,988,162
JP Morgan Chase & Company2,483,445Dec 30, 20186.54%97,202,037
Partner Fund Management, L.P.2,183,393Dec 30, 20185.75%85,458,002
Price (T.Rowe) Associates Inc1,970,766Dec 30, 20185.19%77,135,781
State Street Corporation1,819,998Dec 30, 20184.79%71,234,721
Federated Investors, Inc.1,426,700Dec 30, 20183.76%55,841,038
Baker Brothers Advisors, LLC1,384,130Dec 30, 20183.65%54,174,848

Top Mutual Fund Holders

HolderSharesDate Reported% OutValue
Hartford Mid Cap Fund1,365,591Oct 30, 20183.60%61,437,939
SPDR (R) Ser Tr-SPDR (R) S&P (R) Biotech ETF1,215,433Feb 27, 20193.20%137,708,558
Federated Kaufmann Fund1,069,500Dec 30, 20182.82%41,860,230
Fidelity Select Portfolios - Biotechnology905,620Feb 27, 20192.39%102,606,746
Vanguard Small-Cap Index Fund813,373Sep 29, 20182.14%44,369,497
Vanguard Total Stock Market Index Fund807,172Sep 29, 20182.13%44,031,232
Price (T.Rowe) Health Sciences Fund675,979Dec 30, 20181.78%26,457,818
Fidelity Growth Company Fund668,438Feb 27, 20191.76%75,734,025
IndexIQ Tr-IQ ARB Merger Arbitrage ETF667,887Mar 30, 20191.76%76,058,971
iShares Russell 2000 ETF663,026Feb 27, 20191.75%75,120,845