| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Cormorant Asset Management, LLC | 8.32M (19.30%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 2 | Suvretta Capital Management, LLC | 6.80M (15.78%) | 21.00K Increased by +0.31% | Mar 31, 25 |
| 3 | Adage Capital Partners Gp LLC | 6.20M (14.38%) | 450.00K Increased by +7.26% | Mar 31, 25 |
| 4 | BlackRock Inc | 5.72M (13.27%) | 440.67K Increased by +7.70% | Mar 31, 25 |
| 5 | Franklin Resources Inc | 4.15M (9.62%) | 12.29K Increased by +0.30% | Mar 31, 25 |
| 6 | Federated Hermes Inc | 4.09M (9.47%) | 378.13K Increased by +9.26% | Mar 31, 25 |
| 7 | Vanguard Group Inc | 3.83M (8.89%) | 31.14K Increased by +0.81% | Mar 31, 25 |
| 8 | TCG Crossover Management, LLC | 3.57M (8.28%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 9 | RA Capital Management, LLC | 3.18M (7.38%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 10 | Citadel Advisors Llc | 2.29M (5.30%) | -180.78K Decreased by -7.91% | Mar 31, 25 |
| 11 | Millennium Management LLC | 2.05M (4.75%) | 917.80K Increased by +44.85% | Mar 31, 24 |
| 12 | State Street Corp | 1.59M (3.69%) | 101.54K Increased by +6.37% | Mar 31, 25 |
| 13 | Geode Capital Management, LLC | 1.59M (3.69%) | 54.13K Increased by +3.40% | Mar 31, 25 |
| 14 | Perceptive Advisors LLC | 1.54M (3.56%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 15 | Goldman Sachs Group Inc | 1.53M (3.55%) | -130.87K Decreased by -8.54% | Mar 31, 25 |
| 16 | Patient Square Capital | 1.48M (3.44%) | 71.65K Increased by +4.83% | Mar 31, 25 |
| 17 | T. Rowe Price Associates, Inc. | 1.35M (3.14%) | -790.73K Decreased by -58.40% | Mar 31, 25 |
| 18 | T. Rowe Price Investment Management,Inc. | 1.27M (2.94%) | -802.81K Decreased by -63.28% | Sep 30, 24 |
| 19 | Essex Woodlands Health Ventures | 1.17M (2.71%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 20 | Octagon Capital Advisors LP | 1.09M (2.54%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Vanguard Total Stock Mkt Idx Inv | 2.07M (4.80%) | 82.42K Increased by +3.98% | Apr 30, 25 |
| 2 | Federated Hermes Kaufmann Growth | 2.04M (4.73%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 3 | Federated Hermes Kaufmann R | 2.04M (4.73%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 4 | Franklin Biotechnology Discv A(acc)USD | 1.88M (4.35%) | 12.69K Increased by +0.68% | May 31, 25 |
| 5 | iShares Russell 2000 ETF | 1.64M (3.79%) | 0.00 Increased by 0.00% | May 31, 25 |
| 6 | Federated Hermes Kaufmann Small Cap A | 1.61M (3.74%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 7 | Federated Hermes Kaufmann Small Cap Grow | 1.61M (3.74%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 8 | Vanguard US Total Market Shares ETF | 1.56M (3.62%) | 0.00 Increased by 0.00% | Sep 30, 24 |
| 9 | Franklin Small Cap Growth SMA | 1.19M (2.77%) | 1.19M Increased by +99.99% | Mar 31, 24 |
| 10 | Franklin Small Cap Growth Adv | 1.17M (2.71%) | 0.00 Increased by 0.00% | Apr 30, 25 |
| 11 | Franklin US Small Cap Growth Equity | 1.17M (2.71%) | -9.73K Decreased by -0.83% | Mar 31, 25 |
| 12 | Vanguard Institutional Extnd Mkt Idx Tr | 1.10M (2.55%) | 2.25K Increased by +0.20% | Apr 30, 25 |
| 13 | Franklin Biotechnology Discovery A | 1.04M (2.40%) | 400.00 Increased by +0.04% | Apr 30, 25 |
| 14 | T. Rowe Price New Horizons | 900.54K (2.09%) | -248.79K Decreased by -27.63% | Mar 31, 25 |
| 15 | US Small-Cap Growth II Equity Comp | 900.54K (2.09%) | -249.12K Decreased by -27.66% | Mar 31, 25 |
| 16 | Columbia Small Cap Growth | 693.23K (1.61%) | 251.24K Increased by +36.24% | Jun 30, 24 |
| 17 | abrdn Healthcare Investors | 675.21K (1.57%) | 155.38K Increased by +23.01% | May 31, 25 |
| 18 | Fidelity Small Cap Index | 654.93K (1.52%) | 2.34K Increased by +0.36% | Mar 31, 25 |
| 19 | Jennison Health Sciences Equity | 649.15K (1.51%) | 649.15K Increased by +100.00% | Dec 31, 23 |
| 20 | PGIM Jennison Health Sciences Z | 649.15K (1.51%) | 0.00 Increased by 0.00% | Jan 31, 24 |