Media & Investors

Ownership Summary

Top Holders

Holder Shares Held % O/S Share Change Filing Date
PRIMECAP Management Company 9,488,000 17.64 9,488,000 12/31/19
Federated Global Investment Management Corp. 6,934,316 12.90 1,449,253 9/30/19
BVF Partners L.P. 6,750,482 12.55 -- 9/30/19
BlackRock Institutional Trust Company, N.A. 3,161,745 5.88 723,485 9/30/19
Delphi Ventures L.P. 2,426,702 4.51 -- 3/31/19
The Vanguard Group, Inc. 2,330,657 4.33 217,468 9/30/19
Advanced Technology Ventures 2,110,082 3.92 -- 3/31/19
Dimensional Fund Advisors, L.P. 1,483,622 2.76 18,451 9/30/19
Adage Capital Management, L.P. 1,300,000 2.42 100,000 9/30/19
Point72 Asset Management, L.P. 1,200,000 2.23 -735,800 9/30/19

Top Holders: Mutual Funds

Fund Shares Held % O/S Share Change Filing Date
Federated Kaufmann Small Cap Fund 3,650,000 6.79 1,449,253 9/30/19
Federated Kaufmann Fund 3,197,902 5.95 -- 9/30/19
Vanguard Total Stock Market Index Fund 1,409,585 2.62 -- 12/31/19
iShares Russell 2000 ETF 1,081,922 2.01 17,945 12/31/19
Vanguard Extended Market Index Fund 660,428 1.23 -- 12/31/19
DFA U.S. Small Cap Portfolio 406,248 0.76 23,932 10/31/19
iShares Russell 2000 Value ETF 388,391 0.72 2,530 12/31/19
DFA U.S. Targeted Value Portfolio 349,946 0.65 -- 10/31/19
Wellington Global Healthcare Equity Fund 281,548 0.52 -- 10/31/19
Fidelity Extended Market Index Fund 223,512 0.42 -- 11/30/19

* Insider values reflect direct beneficial ownership.

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