CUSIP: 56400P706 | NYSE | Healthcare · Biotechnology | Small Cap | 724 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 |
|---|---|---|---|---|---|
| 13GRubric Capital Management LP | 18,000,000 | 5.8% | New 5%+ stake | Jun 30, 2026 | No 13F filer matched |
| Style | Turnover | Location | Filed | ||||
|---|---|---|---|---|---|---|---|
| 4,986,096 | $19.4M | 1.9% | Core | Low | Federal Way, WA | 2026-11-03 | |
| 4,180,525 | $16.3M | 4.1% | Deep Value | Very Low | Summit, NJ | 2026-10-15 | |
| 728,000 | $2.8M | 0.4% | Core | Medium | New York, NY | 2026-10-26 | |
| 426,020 | $1.7M | 0.0% | Yield | Low | Denver, CO | 2026-11-03 | |
| 235,157 | $917.1K | 0.0% | Growth | Medium | Chicago, IL | 2026-10-13 | |
| 212,570 | $829.0K | 0.0% | Index | Low | Austin, TX | 2026-11-04 | |
| 203,031 | $791.8K | 0.0% | Core | Medium | New York, NY | 2026-11-04 | |
| 198,864 | $775.6K | 0.0% | Index | Very Low | Overland Park, KS | 2026-11-02 | |
| 143,302 | $558.9K | 0.0% | Core | Medium | Toronto Ontario, Australia | 2026-11-02 | |
| 111,661 | $435.5K | 0.0% | Growth | Low | Bethesda, MD | 2026-10-29 | |
| 106,406 | $325.6K | 0.0% | Core | Low | Plymouth, MN | 2026-10-13 | |
| 94,641 | $369.1K | 0.0% | Core | Low | Trenton, NJ | 2026-11-05 | |
| 82,707 | $322.6K | 0.0% | Index | Very Low | Phoenix, AZ | 2026-11-03 | |
| 80,123 | $312.5K | 0.0% | Core | Very High | Chicago, IL | 2026-11-04 | |
| 72,311 | $282.0K | 0.0% | Index | Very Low | Tokyo, Mexico | 2026-11-05 | |
| 71,469 | $238.7K | 0.0% | Growth | Medium | Shanghai, France | 2026-10-28 | |
| 70,700 | $279 | 0.0% | Core | Low | Pittsburgh, PA | 2026-10-26 | |
| 64,551 | $251.8K | 0.0% | ETF | Low | Waltham, MA | 2026-11-02 | |
| 51,131 | $199.4K | 0.0% | Growth | Low | Bethesda, MD | 2026-10-29 | |
| 51,100 | $155.9K | 0.0% | Core | Medium | Springdale, AR | 2026-10-19 | |
| 47,600 | $185.6K | 0.0% | ETF | Low | Morristown, NJ | 2026-10-26 | |
| 43,374 | $169.2K | 0.0% | Growth | Medium | Carouge, Switzerland | 2026-11-03 | |
| 36,794 | $143.5K | 0.0% | Core | Low | Des Moines, IA | 2026-11-02 | |
| 33,968 | $108.4K | 0.0% | GARP | Low | Chicago, IL | 2026-10-27 | |
| 32,278 | $125.9K | 0.0% | Value | High | Cheyenne, WY | 2026-10-28 | |
| 29,839 | $116.4K | 0.0% | Index | Very Low | Philadelphia, PA | 2026-11-03 | |
| 25,207 | $98.3K | 0.0% | Core | Very Low | Seattle, WA | 2026-11-03 | |
| 24,238 | $94.5K | 0.0% | GARP | Very High | Chicago, IL | 2026-11-05 | |
| 22,720 | $88.6K | 0.0% | Growth | Low | San Diego, CA | 2026-10-13 | |
| 20,000 | $78.0K | 0.0% | ETF | Low | Omaha, NE | 2026-10-28 | |
| 19,300 | $75.3K | 0.0% | Core | Medium | Richmond, VA | 2026-10-28 | |
| 19,224 | $75.0K | 0.0% | Growth | Medium | Tampa, FL | 2026-10-16 | |
| 18,108 | $70.6K | 0.1% | Value | High | Phoenix, AZ | 2026-10-26 | |
| 18,000 | $70.2K | 0.0% | Core | Medium | Naples, FL | 2026-10-19 | |
| 16,431 | $64.1K | 0.0% | Growth | Low | Seoul, Malaysia | 2026-11-03 | |
| 15,536 | $60.6K | 0.0% | Core | Low | Zurich, Switzerland | 2026-11-03 | |
| 15,500 | $60.5K | 0.0% | ETF | Very Low | Springfield, MO | 2026-10-13 | |
| 14,776 | $57 | 0.0% | Core | Very Low | Juneau, AK | 2026-10-15 | |
| 14,348 | $56 | 0.0% | Core | Medium | Brussels, Czech Republic | 2026-10-22 | |
| 14,130 | $55.1K | 0.0% | Value | Very High | Greenwich, CT | 2026-11-02 | |
| 11,203 | $38.3K | 0.0% | Growth | Low | Plymouth, MN | 2026-10-13 | |
| 11,160 | $43.5K | 0.0% | Growth | Low | Los Angeles, CA | 2026-11-04 | |
| 11,149 | $43.5K | 0.0% | Core | Low | North Little Rock, AR | 2026-10-23 | |
| 10,940 | $42.7K | 0.0% | ETF | Medium | Lancaster, PA | 2026-10-22 | |
| 10,689 | $41.7K | 0.0% | Index | Very Low | Atlanta, GA | 2026-10-23 | |
| 10,626 | $41.4K | 0.0% | Core | Very Low | Charlotte, NC | 2026-10-27 | |
| 10,548 | $41.1K | 0.0% | ETF | Low | Rock Hill, SC | 2026-10-01 | |
| 10,500 | $41.5K | 0.0% | Core | Very High | Orlando, FL | 2026-11-02 | |
| 10,422 | $40.6K | 0.0% | GARP | Medium | Charlotte, NC | 2026-10-22 | |
| 10,000 | $39 | 0.0% | Core | Low | Pasadena, CA | 2026-10-22 | |
| 10,000 | $30.2K | 0.0% | ETF | Low | Minnetonka, MN | 2026-10-15 | |
| 7,100 | $27.7K | 0.0% | Agg Growth | Medium | Guangzhou, France | 2026-10-26 | |
| 5,677 | $22.1K | 0.0% | Index | Very Low | St. Louis, MO | 2026-10-20 | |
| 5,000 | $19.5K | 0.0% | Core | Low | Keene, NH | 2026-10-27 | |
| 3,164 | $12.3K | 0.0% | Core | Medium | Birmingham, AL | 2026-11-04 | |
| 3,051 | $11.9K | 0.0% | Index | Low | Atlanta, GA | 2026-10-23 | |
| 1,738 | $6.8K | 0.0% | Value | Medium | Rancho Santa Fe, CA | 2026-10-14 | |
| 1,549 | $6.0K | 0.0% | Growth | Very High | Hong Kong, South Korea | 2026-10-29 | |
| 1,436 | $5.6K | 0.0% | Index | Low | San Francisco, CA | 2026-10-08 | |
| 1,348 | $5.3K | 0.0% | ETF | Very Low | Mesa, AZ | 2026-10-27 | |
| 1,327 | $5.2K | 0.0% | Growth | Low | St Louis, MO | 2026-11-05 | |
| 1,123 | $4.4K | 0.0% | ETF | Medium | Encinitas, CA | 2026-10-21 | |
| 917 | $3.6K | 0.0% | ETF | Low | Fort Lauderdale, FL | 2026-10-30 | |
| 700 | $2.7K | 0.0% | Growth | Low | Mishawaka, IN | 2026-10-22 | |
| 600 | $2.3K | 0.0% | Growth | Low | Santa Monica, CA | 2026-11-02 | |
| 565 | $2.2K | 0.0% | Growth | Low | Tampa, FL | 2026-10-16 | |
| 551 | $2.2K | 0.0% | Index | Low | San Francisco, CA | 2026-11-03 | |
| 500 | $2.0K | 0.0% | Core | Low | Feasterville, PA | 2026-10-30 | |
| 433 | $1.7K | 0.0% | ETF | Very Low | Sylvania, OH | 2026-10-26 | |
| 381 | $1.5K | 0.0% | ETF | Low | Concord, CA | 2026-10-21 | |
| 354 | $1.4K | 0.0% | ETF | Low | Southfied, MI | 2026-10-26 | |
| 295 | $1.2K | 0.0% | Index | Very Low | Foster City, CA | 2026-10-08 | |
| 249 | $971 | 0.0% | ETF | Medium | Melbourne, FL | 2026-11-05 | |
| 208 | $812 | 0.0% | ETF | Medium | Akron, OH | 2026-10-13 | |
| 200 | $780 | 0.0% | Core | Low | Troy, MI | 2026-10-23 | |
| 120 | $469 | 0.0% | Core | Very Low | Saint Louis, MO | 2026-10-27 | |
| 80 | $312 | 0.0% | ETF | Medium | Santa Ana, CA | 2026-11-02 | |
| 63 | $246 | 0.0% | ETF | Medium | Southfield, MI | 2026-10-08 | |
| 60 | $234 | 0.0% | ETF | Low | Bethlehem, PA | 2026-10-23 | |
| 45 | $0 | 0.0% | Value | High | London, United Kingdom | 2026-10-30 | |
| 30 | $117 | 0.0% | Core | Low | Baltimore, MD | 2026-10-27 | |
| 25 | $98 | 0.0% | Growth | Low | Boston, MA | 2026-10-21 | |
| 16 | $64 | 0.0% | GARP | High | Meridian, ID | 2026-10-22 | |
| 13 | $51 | 0.0% | Agg Growth | Low | Coatesville, PA | 2026-10-29 | |
| 6 | $23 | 0.0% | Agg Growth | Low | Tokyo, Mexico | 2026-10-22 | |
| 4 | $16 | 0.0% | ETF | Medium | Scottsdale, AZ | 2026-10-14 |