| The Vanguard Group, Inc. |
5,267,388 |
8.47 |
193,793 |
12/31/20 |
| Fidelity Management & Research Company LLC |
5,071,244 |
8.15 |
45,459 |
12/31/20 |
| Jackson Square Partners, LLC |
3,186,987 |
5.12 |
3,186,987 |
12/31/20 |
| Capital World Investors |
3,072,964 |
4.94 |
1,518,075 |
12/31/20 |
| BlackRock Institutional Trust Company, N.A. |
2,984,144 |
4.80 |
106,641 |
12/31/20 |
| Wellington Management Company, LLP |
2,264,434 |
3.64 |
-378,484 |
12/31/20 |
| Invesco Advisers, Inc. |
1,690,537 |
2.72 |
84,504 |
12/31/20 |
| Credit Suisse Asset Management |
1,394,929 |
2.24 |
650,434 |
12/31/20 |
| Gilder Gagnon Howe & Co. LLC |
1,390,517 |
2.24 |
-9,844 |
12/31/20 |
| T. Rowe Price Associates, Inc. |
1,371,380 |
2.21 |
42,692 |
12/31/20 |
| Voya Investment Management LLC |
1,355,246 |
2.18 |
304,590 |
12/31/20 |
| Fred Alger Management, LLC |
1,325,951 |
2.13 |
-63,116 |
12/31/20 |
| Federated Hermes Global Investment Management Corp. |
1,273,800 |
2.05 |
-600 |
12/31/20 |
| Brown Capital Management, LLC |
1,223,209 |
1.97 |
4,468 |
12/31/20 |
| Fidelity Institutional Asset Management |
1,168,642 |
1.88 |
214,181 |
12/31/20 |
| Delphi Ventures L.P. |
1,000,000 |
1.60 |
-- |
2/28/21 |
| Ivy Investment Management Company |
876,155 |
1.41 |
-379,846 |
12/31/20 |
| State Street Global Advisors (US) |
836,107 |
1.34 |
48,161 |
12/31/20 |
| Geode Capital Management, L.L.C. |
746,173 |
1.20 |
58,692 |
12/31/20 |
| Capital Research Global Investors |
701,800 |
1.12 |
701,800 |
3/31/21 |
| American Century Investment Management, Inc. |
681,250 |
1.10 |
19,034 |
12/31/20 |
| RTW Investments L.P. |
660,982 |
1.06 |
57,501 |
12/31/20 |
| Blickenstaff (Kim D) |
652,390 |
1.04 |
10,640 |
2/28/21 |
| TimesSquare Capital Management, LLC |
643,300 |
1.03 |
64,270 |
12/31/20 |
| Norges Bank Investment Management (NBIM) |
617,583 |
0.99 |
93,081 |
12/31/20 |
| Ardevora Asset Management LLP |
615,538 |
0.98 |
64,701 |
3/31/21 |
| Stephens Investment Management Group, LLC |
586,506 |
0.94 |
-13,478 |
12/31/20 |
| SEI Investments Management Corporation |
552,088 |
0.89 |
508,114 |
12/31/20 |
| Jennison Associates LLC |
546,987 |
0.88 |
-17,480 |
12/31/20 |
| Sectoral Asset Management Inc. |
471,818 |
0.76 |
248,850 |
12/31/20 |
| Friess Associates LLC |
467,861 |
0.75 |
57,149 |
12/31/20 |
| Chicago Capital, LLC |
458,893 |
0.73 |
18,719 |
3/31/21 |
| Charles Schwab Investment Management, Inc. |
440,843 |
0.71 |
15,453 |
12/31/20 |
| Morgan Stanley & Co. LLC |
392,944 |
0.63 |
376,203 |
12/31/20 |
| Bellevue Asset Management AG |
385,184 |
0.62 |
71,740 |
12/31/20 |
| Westfield Capital Management Company, L.P. |
380,432 |
0.61 |
130,862 |
12/31/20 |
| Nuveen LLC |
378,187 |
0.61 |
64,303 |
12/31/20 |
| Eagle Asset Management, Inc. |
368,558 |
0.59 |
-431,189 |
12/31/20 |
| Columbia Threadneedle Investments (US) |
364,693 |
0.59 |
-1,604 |
12/31/20 |
| Boston Common Asset Management, LLC |
360,874 |
0.58 |
-- |
2/28/21 |
| Eaton Vance Management |
342,526 |
0.55 |
63,496 |
12/31/20 |
| Goldman Sachs Asset Management, L.P. |
339,290 |
0.55 |
-30,091 |
12/31/20 |
| BlackRock Financial Management, Inc. |
321,376 |
0.52 |
-100,721 |
12/31/20 |
| Renaissance Technologies LLC |
316,427 |
0.51 |
-126,669 |
12/31/20 |
| Columbus Circle Investors |
311,279 |
0.50 |
-261,272 |
12/31/20 |
| Macquarie Investment Management |
304,628 |
0.49 |
201,769 |
12/31/20 |
| Baillie Gifford & Co. |
295,445 |
0.48 |
176 |
12/31/20 |
| Goldman Sachs & Company, Inc. |
269,292 |
0.43 |
23,539 |
12/31/20 |
| First Light Asset Management, LLC |
267,274 |
0.43 |
10,069 |
12/31/20 |
| New York State Common Retirement Fund |
263,485 |
0.42 |
-18,360 |
12/31/20 |
