| Rank | Holder | Shares | Change | Date reported |
|---|---|---|---|---|
| 1 | Bvf Inc | 21.75M | 0.00 Increased by 0.00% | Mar 31, 24 |
| 2 | Cormorant Asset Management, LLC | 8.49M | 0.00 Increased by 0.00% | Mar 31, 24 |
| 3 | FMR Inc | 4.37M | 522.97K Increased by +11.97% | Mar 31, 24 |
| 4 | venBio Select Advisor LLC | 2.58M | 0.00 Increased by 0.00% | Mar 31, 24 |
| 5 | Adage Capital Partners Gp LLC | 2.28M | 759.20K Increased by +33.23% | Mar 31, 24 |
| 6 | T. Rowe Price Associates, Inc. | 2.14M | -178.13K Decreased by -8.34% | Mar 31, 24 |
| 7 | Holocene Advisors, LP | 1.45M | 1.35M Increased by +92.73% | Mar 31, 24 |
| 8 | Federated Hermes Inc | 1.10M | 39.23K Increased by +3.57% | Mar 31, 24 |
| 9 | T. Rowe Price Investment Management,Inc. | 1.10M | -125.50K Decreased by -11.46% | Mar 31, 24 |
| 10 | AllianceBernstein L.P. | 955.51K | 46.36K Increased by +4.85% | Mar 31, 24 |
| 11 | Westfield Capital Management Company, LP | 910.87K | 298.82K Increased by +32.81% | Mar 31, 24 |
| 12 | Polar Capital Holdings PLC | 857.96K | -79.16K Decreased by -9.23% | Mar 31, 24 |
| 13 | Fred Alger Management, LLC | 666.72K | -143.86K Decreased by -21.58% | Mar 31, 24 |
| 14 | Marshall Wace Asset Management Ltd | 510.95K | 510.95K Increased by +100.00% | Mar 31, 24 |
| 15 | Pictet Asset Manangement SA | 499.84K | -116.72K Decreased by -23.35% | Mar 31, 24 |
| 16 | Balyasny Asset Management LLC | 424.69K | -173.81K Decreased by -40.93% | Mar 31, 24 |
| 17 | BlackRock Inc | 408.28K | 26.55K Increased by +6.50% | Mar 31, 24 |
| 18 | Finepoint Capital LP | 360.92K | -534.08K Decreased by -147.98% | Mar 31, 24 |
| 19 | Perceptive Advisors LLC | 339.01K | 256.61K Increased by +75.69% | Mar 31, 24 |
| 20 | Ghost Tree Capital, LLC | 300.00K | 220.00K Increased by +73.33% | Mar 31, 24 |
| Rank | Holder | Shares | Change | Date reported |
|---|---|---|---|---|
| 1 | T. Rowe Price Health Sciences | 1.05M | -17.21K Decreased by -1.64% | Mar 31, 24 |
| 2 | Polar Capital Healthcare Opports Inc | 608.77K | 0.00 Increased by 0.00% | Apr 30, 24 |
| 3 | Federated Hermes Kaufmann Growth | 555.00K | 0.00 Increased by 0.00% | Mar 31, 24 |
| 4 | Federated Hermes Kaufmann R | 555.00K | 0.00 Increased by 0.00% | Mar 31, 24 |
| 5 | T. Rowe Price New Horizons | 522.63K | -152.28K Decreased by -29.14% | Mar 31, 24 |
| 6 | US Small-Cap Growth II Equity Comp | 522.63K | -152.28K Decreased by -29.14% | Mar 31, 24 |
| 7 | Alger Small Cap Focus Composite | 483.56K | 0.00 Increased by 0.00% | Mar 31, 24 |
| 8 | Alger Small Cap Focus I | 483.56K | 0.00 Increased by 0.00% | Mar 31, 24 |
| 9 | Federated Hermes Kaufmann Small Cap A | 471.28K | 0.00 Increased by 0.00% | Mar 31, 24 |
| 10 | Federated Hermes Kaufmann Small Cap Grow | 471.28K | 0.00 Increased by 0.00% | Mar 31, 24 |
| 11 | Fidelity Growth Compy Commingled Pl O | 442.23K | 26.19K Increased by +5.92% | Apr 30, 24 |
| 12 | MEDICAL BioHealth EUR Acc | 435.62K | 0.00 Increased by 0.00% | Dec 31, 23 |
| 13 | T. Rowe Price Small-Cap Stock | 421.42K | 31.52K Increased by +7.48% | Mar 31, 24 |
| 14 | T. Rowe Price US Small-Cap Core Equity | 421.42K | 31.52K Increased by +7.48% | Mar 31, 24 |
| 15 | Harbor Small Cap Growth Instl | 400.52K | 132.64K Increased by +33.12% | Mar 31, 24 |
| 16 | Westfield Capital Mgt Co Sm-Cap Gr Eq | 400.52K | 141.18K Increased by +35.25% | Mar 31, 24 |
| 17 | Fidelity Blue Chip Growth | 396.52K | 0.00 Increased by 0.00% | Apr 30, 24 |
| 18 | APO Medical Opportunities R | 338.07K | 0.00 Increased by 0.00% | Apr 30, 24 |
| 19 | Fidelity Growth Company Fund | 311.53K | 19.10K Increased by +6.13% | Apr 30, 24 |
| 20 | AB Small Cap Growth A | 291.49K | -4.78K Decreased by -1.64% | Apr 30, 24 |