Ownership Profile
Ownership Profile
Top Holders
| Holder | Shares Held | % O/S | Share Change | Filing Date |
|---|---|---|---|---|
| Fidelity Management & Research Company | 20,947,127 | 14.89 | 24,443 | 12/31/19 |
| The Vanguard Group, Inc. | 11,966,392 | 8.51 | -248,083 | 12/31/19 |
| Baillie Gifford & Co. | 8,790,025 | 6.25 | 374,736 | 12/31/19 |
| Bellevue Asset Management AG | 8,431,820 | 5.99 | 109,906 | 12/31/19 |
| ClearBridge Investments, LLC | 7,947,576 | 5.65 | -1,343,348 | 12/31/19 |
| BlackRock Institutional Trust Company, N.A. | 6,955,154 | 4.94 | -8,776 | 12/31/19 |
| Wellington Management Company, LLP | 6,737,856 | 4.79 | -1,007,483 | 12/31/19 |
| Biogen Inc | 5,750,577 | 4.09 | -5,750,576 | 12/31/19 |
| State Street Global Advisors (US) | 3,847,385 | 2.74 | 196,602 | 12/31/19 |
| Invesco Advisers, Inc. | 2,331,852 | 1.66 | -5,648 | 12/31/19 |
Top Holders: Mutual Funds
| Fund | Shares Held | % O/S | Share Change | Filing Date |
|---|---|---|---|---|
| Fidelity Growth Company Fund | 8,514,444 | 6.12 | 228,918 | 2/29/20 |
| BB Biotech Fd | 7,994,955 | 5.74 | -- | 12/31/19 |
| Vanguard Total Stock Market Index Fund | 3,653,649 | 2.62 | 71,830 | 2/29/20 |
| Vanguard Small-Cap Index Fund | 3,240,446 | 2.33 | -1,504 | 2/29/20 |
| Hartford MidCap Fund | 2,323,791 | 1.67 | -141,796 | 2/29/20 |
| ClearBridge Aggressive Growth Fund | 2,306,791 | 1.66 | -- | 12/31/19 |
| Fidelity Series Growth Company Fund | 2,085,834 | 1.50 | -55,100 | 2/29/20 |
| Ivy Science and Technology Fund | 2,045,947 | 1.47 | -872,379 | 12/31/19 |
| Vanguard Small-Cap Growth Index Fund | 1,879,293 | 1.35 | -20,864 | 2/29/20 |
| Vanguard Extended Market Index Fund | 1,818,302 | 1.31 | -8,274 | 2/29/20 |
* Insider values reflect direct beneficial ownership.
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