| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | BlackRock Inc | 4.64M (10.48%) | -4.21M Decreased by -90.67% | Mar 31, 26 |
| 2 | Politan Capital Management LP | 4.59M (10.36%) | 0.00 Increased by 0.00% | Mar 31, 26 |
| 3 | Vanguard Group Inc | 4.35M (9.82%) | -461.23K Decreased by -10.61% | Dec 31, 25 |
| 4 | Pentwater Capital Management LP | 3.18M (7.17%) | 3.18M Increased by +100.00% | Mar 31, 26 |
| 5 | T. Rowe Price Investment Management,Inc. | 2.93M (6.61%) | 803.69K Increased by +27.43% | Dec 31, 25 |
| 6 | Barclays PLC | 2.74M (6.19%) | 2.69M Increased by +97.87% | Mar 31, 26 |
| 7 | HBK INVESTMENTS L P | 2.58M (5.81%) | 2.58M Increased by +100.00% | Mar 31, 26 |
| 8 | Massachusetts Financial Services Company | 2.34M (5.29%) | -321.08K Decreased by -13.71% | Mar 31, 26 |
| 9 | Vanguard Capital Management, LLC | 2.05M (4.63%) | 2.05M Increased by +100.00% | Mar 31, 26 |
| 10 | Vanguard Portfolio Management, LLC | 2.01M (4.53%) | 2.01M Increased by +100.00% | Mar 31, 26 |
| 11 | NAYA CAPITAL MANAGEMENT UK LTD | 1.56M (3.52%) | 1.56M Increased by +100.00% | Dec 31, 25 |
| 12 | Westfield Capital Management Company, L.P. | 1.52M (3.44%) | 102.80K Increased by +6.75% | Dec 31, 25 |
| 13 | FMR Inc | 1.45M (3.27%) | -6.41M Decreased by -442.05% | Mar 31, 26 |
| 14 | State Street Corp | 1.44M (3.24%) | 22.53K Increased by +1.57% | Mar 31, 26 |
| 15 | Westfield Capital Management Company, LP | 1.39M (3.15%) | 262.37K Increased by +18.82% | Sep 30, 24 |
| 16 | State Street Corporation | 1.36M (3.07%) | 2.92K Increased by +0.21% | Mar 31, 24 |
| 17 | Alyeska Investment Group, L.P. | 1.26M (2.84%) | -121.78K Decreased by -9.67% | Dec 31, 25 |
| 18 | Farallon Capital Management, L.L.C. | 1.26M (2.84%) | 139.00K Increased by +11.04% | Sep 30, 24 |
| 19 | Holocene Advisors, LP | 1.24M (2.81%) | -89.69K Decreased by -7.21% | Jun 30, 25 |
| 20 | Thrivent Financial For Lutherans | 1.22M (2.75%) | 360.50K Increased by +29.61% | Jun 30, 24 |
| Rank | Holder | SharesFloat % | Change | Date reported |
|---|---|---|---|---|
| 1 | MFS Mid Cap Growth A | 1.64M (3.69%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 2 | MFS Mid Cap Growth Equity | 1.64M (3.69%) | -7.58K Decreased by -0.46% | Mar 31, 26 |
| 3 | iShares Core S&P Mid-Cap ETF | 1.55M (3.50%) | 288.00 Increased by +0.02% | May 29, 26 |
| 4 | Vanguard US Total Market Shares ETF | 1.53M (3.46%) | -71.94K Decreased by -4.70% | Sep 30, 24 |
| 5 | Vanguard Total Stock Mkt Idx Inv | 1.46M (3.29%) | 3.35K Increased by +0.23% | Apr 30, 26 |
| 6 | Select Medical Tech and Devcs | 1.20M (2.71%) | 50.00K Increased by +4.17% | Nov 30, 23 |
| 7 | BlackRock Mid-Cap Growth Equity Instl | 1.20M (2.70%) | -18.64K Decreased by -1.56% | Jul 31, 25 |
| 8 | Capital Group AMCAP Composite | 1.19M (2.69%) | -1.56K Decreased by -0.13% | Mar 31, 24 |
| 9 | VA CollegeAmerica Amcap 529A | 1.19M (2.69%) | -1.56K Decreased by -0.13% | Mar 31, 24 |
| 10 | BlackRock Global Uncons Eq Z USD Acc | 1.07M (2.41%) | -9.11K Decreased by -0.85% | Oct 31, 25 |
| 11 | Vanguard Small Cap Index | 1.05M (2.37%) | -2.20K Decreased by -0.21% | Apr 30, 26 |
| 12 | Fidelity Select Health Care | 1.00M (2.26%) | -230.00K Decreased by -23.00% | Jan 31, 26 |
| 13 | BlackRock Event Driven Equity Instl | 971.82K (2.19%) | 0.00 Increased by 0.00% | Apr 30, 26 |
| 14 | T. Rowe Price Mid-Cap Growth | 767.60K (1.73%) | 369.50K Increased by +48.14% | Jan 31, 26 |
| 15 | Smithson Investment Trust Ord | 691.14K (1.56%) | 0.00 Increased by 0.00% | Aug 31, 23 |
| 16 | T. Rowe Price US Small-Cap Core Equity | 667.08K (1.51%) | 72.67K Increased by +10.89% | Dec 31, 25 |
| 17 | T. Rowe Price Small-Cap Stock | 666.07K (1.50%) | -1.01K Decreased by -0.15% | Jan 31, 26 |
| 18 | Vanguard Small Cap Growth Index Inv | 590.59K (1.33%) | 783.00 Increased by +0.13% | Apr 30, 26 |
| 19 | Fidelity Advisor® Health Care I | 575.00K (1.30%) | 45.00K Increased by +7.83% | Nov 30, 23 |
| 20 | Fidelity Select Medical Tech and Devcs | 560.00K (1.26%) | -690.00K Decreased by -123.21% | Feb 28, 26 |