CUSIP: 578784100 | NYSE | Healthcare · Biotechnology | Mid Cap | 246 institutional holders
5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.
| Holder | Shares | % of Class | Change | Event Date | vs 13F |
|---|---|---|---|---|---|
| 13G/AParadigm BioCapital Advisors LP | 0 | 0.0% | No shares held | Jun 30, 2026 | No 13F filer matched |
| Style | Turnover | Location | Filed | ||||
|---|---|---|---|---|---|---|---|
| 273,932 | $7.5M | 0.0% | Growth | Medium | Strassen, Netherlands | 2026-11-03 | |
| 249,636 | $6.8M | 1.5% | Agg Growth | Very Low | Somerville, MA | 2026-11-03 | |
| 100,556 | $2.7M | 0.0% | Index | Low | Austin, TX | 2026-11-04 | |
| 73,574 | $2.0M | 0.0% | Yield | Low | Denver, CO | 2026-11-03 | |
| 57,125 | $1.6M | 0.0% | Value | Very High | Hong Kong, South Korea | 2026-10-16 | |
| 56,281 | $1.5M | 0.0% | Growth | Low | Bethesda, MD | 2026-10-29 | |
| 32,671 | $888.0K | 0.0% | Core | Medium | New York, NY | 2026-11-04 | |
| 18,286 | $497 | 0.0% | Value | Very High | Castle Rock, CO | 2026-11-04 | |
| 13,736 | $371.1K | 0.0% | Growth | Medium | Shanghai, France | 2026-10-28 | |
| 9,529 | $259.0K | 0.0% | Index | Very Low | Overland Park, KS | 2026-11-02 | |
| 7,592 | $206.4K | 0.0% | Core | Low | Trenton, NJ | 2026-11-05 | |
| 2,839 | $77.2K | 0.0% | Growth | Low | Seoul, Malaysia | 2026-11-03 | |
| 1,370 | $37.2K | 0.0% | Agg Growth | Medium | Guangzhou, France | 2026-10-26 | |
| 1,300 | $35.3K | 0.0% | Growth | Medium | Sugar Land, TX | 2026-11-03 | |
| 1,089 | $29.6K | 0.0% | GARP | Medium | Charlotte, NC | 2026-10-22 | |
| 935 | $25.4K | 0.0% | Core | Low | Keene, NH | 2026-10-27 | |
| 909 | $24.7K | 0.0% | Growth | Very High | Hong Kong, South Korea | 2026-10-29 | |
| 482 | $13.1K | 0.0% | Index | Very Low | Tokyo, Mexico | 2026-11-05 | |
| 327 | $8.9K | 0.0% | Index | Low | San Francisco, CA | 2026-10-08 | |
| 326 | $8.9K | 0.0% | Index | Very Low | St. Louis, MO | 2026-10-20 | |
| 261 | $7.1K | 0.0% | Growth | Low | Tampa, FL | 2026-10-16 | |
| 202 | $5.5K | 0.0% | GARP | Low | Phoenix, AZ | 2026-10-02 | |
| 158 | $4.3K | 0.0% | Index | Very Low | Foster City, CA | 2026-10-08 | |
| 117 | $3.2K | 0.0% | Core | Medium | Birmingham, AL | 2026-11-04 | |
| 112 | $3.0K | 0.0% | ETF | Medium | San Diego, CA | 2026-10-29 | |
| 100 | $2.7K | 0.0% | Core | Very High | Chicago, IL | 2026-11-04 | |
| 42 | $1.1K | 0.0% | ETF | Low | Hunt Valley, MD | 2026-10-23 | |
| 23 | $734 | 0.0% | ETF | Low | Herndon, VA | 2026-10-30 | |
| 17 | $462 | 0.0% | Index | Low | Atlanta, GA | 2026-10-23 | |
| 15 | $409 | 0.0% | Core | Very Low | Saint Louis, MO | 2026-10-27 | |
| 11 | $299 | 0.0% | ETF | Medium | Scottsdale, AZ | 2026-10-14 | |
| 7 | $0 | 0.0% | Value | High | London, United Kingdom | 2026-10-30 | |
| 7 | $190 | 0.0% | Value | Medium | Rancho Santa Fe, CA | 2026-10-14 |