Ownership Profile
Ownership Profile
Top Holders
| Holder | Shares Held | % O/S | Share Change | Filing Date |
|---|---|---|---|---|
| Fidelity Management & Research Company | 20,900,662 | 14.88 | 275,564 | 6/30/19 |
| The Vanguard Group, Inc. | 12,856,865 | 9.15 | 383,350 | 6/30/19 |
| Biogen Inc | 11,501,153 | 8.19 | -- | 3/1/19 |
| ClearBridge Investments, LLC | 9,502,032 | 6.76 | 3,722 | 6/30/19 |
| Baillie Gifford & Co. | 8,444,249 | 6.01 | -200,102 | 6/30/19 |
| Bellevue Asset Management AG | 7,957,128 | 5.66 | -70,515 | 6/30/19 |
| Wellington Management Company, LLP | 7,658,199 | 5.45 | 119,123 | 6/30/19 |
| BlackRock Institutional Trust Company, N.A. | 7,425,310 | 5.28 | 444,200 | 6/30/19 |
| State Street Global Advisors (US) | 3,585,679 | 2.55 | 1,032,591 | 6/30/19 |
| Ivy Investment Management Company | 3,180,059 | 2.26 | -182,247 | 6/30/19 |
Top Holders: Mutual Funds
| Fund | Shares Held | % O/S | Share Change | Filing Date |
|---|---|---|---|---|
| Fidelity Growth Company Fund | 8,662,533 | 6.17 | 91,728 | 7/31/19 |
| BB Biotech Fd | 7,674,470 | 5.46 | -1,066,864 | 6/30/19 |
| Vanguard Total Stock Market Index Fund | 3,528,695 | 2.51 | 51,441 | 8/31/19 |
| Vanguard Small-Cap Index Fund | 3,212,184 | 2.29 | -29,180 | 8/31/19 |
| Ivy Science and Technology Fund | 2,918,326 | 2.08 | -172,300 | 6/30/19 |
| Fidelity Series Growth Company Fund | 2,349,804 | 1.67 | 42,019 | 7/31/19 |
| ClearBridge Aggressive Growth Fund | 2,342,745 | 1.67 | -205,000 | 6/30/19 |
| Fidelity Select Biotechnology Portfolio | 2,066,877 | 1.47 | -373,700 | 7/31/19 |
| Hartford MidCap Fund | 2,022,646 | 1.44 | -5,102 | 7/31/19 |
| Vanguard Extended Market Index Fund | 2,015,117 | 1.43 | 46,455 | 8/31/19 |
* Insider values reflect direct beneficial ownership.
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