| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | BlackRock Inc | 7.17M (8.35%) | 2.60M Increased by +36.32% | Mar 31, 26 |
| 2 | Deep Track Capital, LP | 6.77M (7.89%) | 6.77M Increased by +100.00% | Mar 31, 26 |
| 3 | Samsara BioCapital, LLC | 6.35M (7.39%) | 588.24K Increased by +9.27% | Mar 31, 26 |
| 4 | Foresite Capital Management V, LLC | 5.90M (6.87%) | 117.65K Increased by +2.00% | Mar 31, 26 |
| 5 | venBio Partners LLC | 4.53M (5.28%) | -91.39K Decreased by -2.02% | Mar 31, 26 |
| 6 | Foresite Capital Management VI LLC | 4.25M (4.95%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 7 | Vanguard Group Inc | 4.10M (4.78%) | 73.67K Increased by +1.80% | Dec 31, 25 |
| 8 | Vanguard Capital Management, LLC | 4.03M (4.70%) | 4.03M Increased by +100.00% | Mar 31, 26 |
| 9 | Cormorant Asset Management, LLC | 3.95M (4.60%) | 313.64K Increased by +7.94% | Mar 31, 26 |
| 10 | T. Rowe Price Associates, Inc. | 3.29M (3.83%) | 3.24M Increased by +98.47% | Mar 31, 26 |
| 11 | Saturn V Capital Management LLC | 3.20M (3.73%) | 66.12K Increased by +2.06% | Mar 31, 26 |
| 12 | UBS Group AG | 3.05M (3.56%) | 2.94M Increased by +96.27% | Mar 31, 26 |
| 13 | Nextech Invest, Ltd. | 2.92M (3.40%) | 0.00 Increased by 0.00% | Dec 31, 25 |
| 14 | Octagon Capital Advisors LP | 2.83M (3.30%) | 300.00K Increased by +10.60% | Mar 31, 26 |
| 15 | MPM Oncology Impact Management LP | 2.39M (2.78%) | -15.46K Decreased by -0.65% | Mar 31, 26 |
| 16 | HHG PLC | 2.12M (2.47%) | 2.12M Increased by +100.00% | Mar 31, 26 |
| 17 | Baker Bros Advisors LP | 2.01M (2.34%) | 450.00K Increased by +22.36% | Mar 31, 26 |
| 18 | SR ONE CAPITAL MANAGEMENT, LP | 1.96M (2.28%) | 0.00 Increased by 0.00% | Dec 31, 25 |
| 19 | Geode Capital Management, LLC | 1.92M (2.23%) | 430.79K Increased by +22.46% | Mar 31, 26 |
| 20 | State Street Corp | 1.80M (2.10%) | 542.37K Increased by +30.10% | Mar 31, 26 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Vanguard Total Stock Mkt Idx Inv | 3.04M (3.54%) | 9.01K Increased by +0.30% | Apr 30, 26 |
| 2 | iShares Russell 2000 ETF | 1.64M (1.91%) | 15.18K Increased by +0.92% | May 29, 26 |
| 3 | HBM Healthcare Investments AG Ord | 1.58M (1.84%) | 300.00K Increased by +19.01% | Mar 31, 26 |
| 4 | Vanguard Institutional Extnd Mkt Idx Tr | 914.00K (1.06%) | 7.40K Increased by +0.81% | Apr 30, 26 |
| 5 | T. Rowe Price New Horizons | 899.42K (1.05%) | 232.20K Increased by +25.82% | Apr 30, 26 |
| 6 | JPM Global Healthcare C acc USD | 723.20K (0.84%) | 124.53K Increased by +17.22% | Apr 30, 26 |
| 7 | Fidelity Small Cap Index | 672.20K (0.78%) | 118.87K Increased by +17.68% | Mar 31, 26 |
| 8 | US Small-Cap Growth II Equity Comp | 667.22K (0.78%) | 667.22K Increased by +100.00% | Mar 31, 26 |
| 9 | Fidelity Select Biotechnology | 620.00K (0.72%) | -87.70K Decreased by -14.15% | Apr 30, 26 |
| 10 | iShares Russell 2000 Value ETF | 591.00K (0.69%) | 0.00 Increased by 0.00% | May 29, 26 |
| 11 | iShares Biotechnology ETF | 526.13K (0.61%) | 10.08K Increased by +1.92% | May 29, 26 |
| 12 | Invesco Small Cap Core | 474.19K (0.55%) | 474.19K Increased by +100.00% | Mar 31, 26 |
| 13 | Principal U.S. Small Cap Equity | 443.40K (0.52%) | 443.40K Increased by +100.00% | Mar 31, 26 |
| 14 | Principal U.S. Small Cap Select Equity | 443.40K (0.52%) | 443.40K Increased by +100.00% | Mar 31, 26 |
| 15 | Fidelity Extended Market Index | 429.59K (0.50%) | -856.00 Decreased by -0.20% | Apr 30, 26 |
| 16 | Principal SmallCap R5 | 421.50K (0.49%) | -21.90K Decreased by -5.20% | Apr 30, 26 |
| 17 | State St Russell Sm/Mid Cp® Indx SL Cl I | 407.98K (0.48%) | 0.00 Increased by 0.00% | May 31, 26 |
| 18 | Schwab US Small-Cap ETF™ | 389.93K (0.45%) | 261.00 Increased by +0.07% | May 30, 26 |
| 19 | Invesco Main Street Small Cap R6 | 369.16K (0.43%) | -105.03K Decreased by -28.45% | Apr 30, 26 |
| 20 | T. Rowe Price Integrated US Sm Gr Eq | 367.20K (0.43%) | 38.10K Increased by +10.38% | Apr 30, 26 |