| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Vanguard Group Inc | 10.94M (10.57%) | -233.04K Decreased by -2.13% | Mar 31, 25 |
| 2 | Cadian Capital Management LP | 10.79M (10.43%) | 5.57M Increased by +51.60% | Mar 31, 25 |
| 3 | Wellington Management Company LLP | 10.22M (9.88%) | -212.28K Decreased by -2.08% | Mar 31, 25 |
| 4 | BlackRock Inc | 9.23M (8.92%) | -94.18K Decreased by -1.02% | Mar 31, 25 |
| 5 | Eventide Asset Management, LLC | 6.08M (5.87%) | 1.52M Increased by +25.09% | Mar 31, 25 |
| 6 | Engaged Capital LLC | 5.18M (5.00%) | -225.30K Decreased by -4.35% | Mar 31, 25 |
| 7 | Morgan Stanley - Brokerage Accounts | 4.78M (4.62%) | 4.21M Increased by +88.07% | Mar 31, 25 |
| 8 | William Blair Investment Management, LLC | 4.40M (4.25%) | -377.19K Decreased by -8.56% | Mar 31, 25 |
| 9 | RA Capital Management, LLC | 3.58M (3.46%) | -4.94M Decreased by -138.03% | Dec 31, 24 |
| 10 | FMR Inc | 3.21M (3.10%) | -1.27M Decreased by -39.62% | Mar 31, 25 |
| 11 | Camber Capital Management LLC | 3.00M (2.90%) | -1.00M Decreased by -33.33% | Mar 31, 25 |
| 12 | State Street Corp | 2.93M (2.83%) | -28.96K Decreased by -0.99% | Mar 31, 25 |
| 13 | JPMorgan Chase & Co | 2.92M (2.83%) | -266.09K Decreased by -9.10% | Mar 31, 25 |
| 14 | Goldman Sachs Group Inc | 2.84M (2.74%) | 1.75M Increased by +61.86% | Mar 31, 25 |
| 15 | Dimensional Fund Advisors, Inc. | 2.83M (2.73%) | -68.38K Decreased by -2.42% | Mar 31, 25 |
| 16 | Rock Springs Capital Management LP | 2.70M (2.60%) | 635.70K Increased by +23.58% | Mar 31, 25 |
| 17 | Bellevue Group AG | 2.67M (2.58%) | 1.00M Increased by +37.46% | Sep 30, 24 |
| 18 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 2.66M (2.57%) | 2.66M Increased by +100.00% | Mar 31, 25 |
| 19 | Geode Capital Management, LLC | 2.59M (2.50%) | 73.59K Increased by +2.84% | Mar 31, 25 |
| 20 | State Street Corporation | 2.52M (2.43%) | 53.68K Increased by +2.13% | Mar 31, 24 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | Vanguard Health Care Inv | 6.78M (6.55%) | 0.00 Increased by 0.00% | Mar 31, 25 |
| 2 | Vanguard Total Stock Mkt Idx Inv | 3.57M (3.45%) | 75.10K Increased by +2.11% | Apr 30, 25 |
| 3 | Vanguard US Total Market Shares ETF | 3.48M (3.36%) | 3.03K Increased by +0.09% | Sep 30, 24 |
| 4 | Fidelity Small Cap Value Fund | 3.19M (3.09%) | -1.00M Decreased by -31.31% | Mar 31, 25 |
| 5 | Vanguard Explorer Inv | 3.09M (2.98%) | 211.93K Increased by +6.86% | Sep 30, 24 |
| 6 | iShares Russell 2000 ETF | 2.97M (2.87%) | 1.46K Increased by +0.05% | May 28, 25 |
| 7 | Vanguard Small Cap Index | 2.78M (2.69%) | 19.53K Increased by +0.70% | Apr 30, 25 |
| 8 | Eventide Gilead N | 2.69M (2.60%) | 406.71K Increased by +15.11% | Dec 31, 24 |
| 9 | Bellevue Healthcare Ord | 1.92M (1.86%) | 1.92M Increased by +100.00% | Jul 31, 24 |
| 10 | Select Medical Tech and Devcs | 1.90M (1.84%) | -356.50K Decreased by -18.73% | Nov 30, 23 |
| 11 | Eventide Healthcare & Life Sciences I | 1.78M (1.72%) | 333.42K Increased by +18.75% | Dec 31, 24 |
| 12 | Vanguard Institutional Extnd Mkt Idx Tr | 1.69M (1.63%) | 2.33K Increased by +0.14% | Apr 30, 25 |
| 13 | Vanguard Small Cap Growth Index Inv | 1.55M (1.50%) | 2.70K Increased by +0.17% | Apr 30, 25 |
| 14 | JPMorgan Small Cap Growth A | 1.50M (1.45%) | 0.00 Increased by 0.00% | Apr 30, 25 |
| 15 | JPM Global Healthcare C (acc) USD | 1.37M (1.32%) | -165.12K Decreased by -12.05% | Mar 31, 24 |
| 16 | CS (Lux) Digital Health Equity SB USD | 1.30M (1.26%) | -30.00K Decreased by -2.31% | Mar 31, 24 |
| 17 | Fidelity Select Health Care | 1.28M (1.24%) | -220.00K Decreased by -17.19% | Jun 30, 24 |
| 18 | Worldwide Healthcare Ord | 1.20M (1.16%) | 0.00 Increased by 0.00% | Nov 30, 24 |
| 19 | Fidelity Advisor® Health Care I | 1.20M (1.16%) | -196.77K Decreased by -16.35% | Nov 30, 23 |
| 20 | Fidelity Select Medical Tech and Devcs | 1.20M (1.16%) | -80.00K Decreased by -6.67% | Jun 30, 24 |