CUSIP: 589492107 | US | Healthcare · Biotechnology | Micro Cap | 270 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/AEcoR1 Capital, LLC with EcoR1 Capital Fund Qualified, L.P. | 5,000,000 | 0.6% | Newly reported | Jun 30, 2026 | No 13F filer matched |
| Style | Turnover | Location | Filed | ||||
|---|---|---|---|---|---|---|---|
| 95,400 | $38.4K | 0.0% | ETF | Very Low | Melville, NY | 2026-10-22 | |
| 85,500 | $34.8K | 0.0% | Core | Low | Stamford, CT | 2026-11-05 | |
| 18,750 | $7.5K | 0.0% | Agg Growth | Medium | Boca Raton, FL | 2026-10-15 | |
| 17,500 | $7.0K | 0.0% | Core | Low | Toronto, Australia | 2026-11-09 | |
| 15,479 | $4.5K | 0.0% | ETF | Medium | New York, NY | 2026-11-03 | |
| 12,070 | $4.9K | 0.0% | Core | Very High | Chicago, IL | 2026-11-04 | |
| 8,675 | $3.5K | 0.0% | Core | Medium | New York, NY | 2026-11-04 | |
| 1,991 | $800 | 0.0% | Index | Very Low | Foster City, CA | 2026-10-08 | |
| 1,500 | $603 | 0.0% | ETF | N/A | Tampa, FL | 2026-10-30 | |
| 1,500 | $477 | 0.0% | Index | Low | Folsom, CA | 2026-11-06 | |
| 300 | $121 | 0.0% | ETF | Low | Meriden, CT | 2026-11-03 | |
| 100 | $40 | 0.0% | Core | Medium | Birmingham, AL | 2026-11-04 | |
| 13 | $5 | 0.0% | Index | Low | Minneapolis, MN | 2026-11-05 |