CUSIP: 98422E103 | NYSE | Healthcare · Biotechnology | Small Cap | 467 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/AVanguard Capital Management LLC | 9,086,791 | 5.0% | +449,151 | Sep 30, 2026 | 92d ahead of 13F (7,340,229 sh) · +1,746,562 |
| Style | Turnover | Location | Filed | ||||
|---|---|---|---|---|---|---|---|
| 1,695,568 | $16.2M | 0.0% | Index | Low | Austin, TX | 2026-11-04 | |
| 1,060,000 | $10.1M | 6.0% | ETF | Very Low | Fair Lawn, NJ | 2026-10-09 | |
| 693,260 | $6.6M | 1.0% | Growth | Medium | Boston, MA | 2026-10-19 | |
| 540,367 | $5.2M | 0.0% | Core | Medium | New York, NY | 2026-11-04 | |
| 495,873 | $4.7M | 0.0% | Core | Low | New York, NY | 2026-11-05 | |
| 264,350 | $2.5M | 0.0% | Core | Low | Des Moines, IA | 2026-11-02 | |
| 256,795 | $2.5M | 0.1% | Value | Very High | Hong Kong, South Korea | 2026-10-16 | |
| 213,337 | $2.0M | 0.0% | ETF | Low | Waltham, MA | 2026-11-02 | |
| 206,004 | $2.1M | 0.0% | ETF | Very Low | West Hartford, CT | 2026-10-08 | |
| 202,547 | $1.9M | 0.1% | Growth | Low | Bethesda, MD | 2026-10-29 | |
| 157,265 | $1.5M | 0.0% | Index | Very Low | Overland Park, KS | 2026-11-02 | |
| 156,900 | $1.5M | 0.0% | Core | Medium | Columbus, OH | 2026-10-30 | |
| 151,326 | $1.4M | 0.1% | Value | Very High | Greenwich, CT | 2026-11-02 | |
| 133,378 | $1.3M | 0.1% | Core | Medium | New Haven, CT | 2026-11-05 | |
| 76,313 | $730.1K | 0.0% | Core | Medium | Zeist, Philippines | 2026-10-30 | |
| 54,389 | $520.0K | 0.0% | Core | Low | Trenton, NJ | 2026-11-05 | |
| 52,320 | $500 | 0.0% | Deep Value | Medium | Richmond, VA | 2026-11-05 | |
| 50,547 | $515.1K | 0.0% | Core | Low | Plymouth, MN | 2026-10-13 | |
| 48,489 | $463.6K | 0.4% | Core | High | San Juan, PR | 2026-11-03 | |
| 47,503 | $454.1K | 0.0% | Value | High | Cheyenne, WY | 2026-10-28 | |
| 47,399 | $453.1K | 0.0% | Index | Very Low | Phoenix, AZ | 2026-11-03 | |
| 40,324 | $385 | 0.0% | ETF | Low | Fairfield, IA | 2026-11-02 | |
| 36,004 | $355 | 0.0% | Core | Low | Frankfurt, Hong Kong | 2026-10-27 | |
| 34,107 | $326.1K | 0.0% | Growth | Medium | Carouge, Switzerland | 2026-11-03 | |
| 33,266 | $332.0K | 0.0% | Growth | Medium | Shanghai, France | 2026-10-28 | |
| 30,000 | $286.8K | 0.0% | ETF | Low | Greenwood Village, CO | 2026-11-05 | |
| 27,853 | $266.3K | 0.0% | Growth | Low | Bethesda, MD | 2026-10-29 | |
| 20,050 | $191.7K | 0.0% | ETF | Very Low | Los Angeles, CA | 2026-10-16 | |
| 19,000 | $181.6K | 0.1% | ETF | Very Low | Jacksonville, FL | 2026-10-30 | |
| 16,182 | $154.7K | 0.0% | Index | Very Low | Philadelphia, PA | 2026-11-03 | |
| 14,832 | $127.0K | 0.0% | ETF | Medium | New York, NY | 2026-11-03 | |
| 14,700 | $140.5K | 0.0% | Core | Medium | Richmond, VA | 2026-10-28 | |
| 13,650 | $130.5K | 0.0% | Growth | Very Low | Seattle, WA | 2026-10-27 | |
| 13,286 | $135.5K | 0.0% | GARP | Low | Chicago, IL | 2026-10-27 | |
| 12,829 | $122.6K | 0.0% | GARP | Very High | Chicago, IL | 2026-11-05 | |
| 11,154 | $106.6K | 0.0% | Index | Low | New York, NY | 2026-10-29 | |
| 9,317 | $89.1K | 0.0% | Growth | Low | Seoul, Malaysia | 2026-11-03 | |
| 7,607 | $72 | 0.0% | Core | Very Low | Juneau, AK | 2026-10-15 | |
| 5,707 | $54.6K | 0.0% | GARP | Medium | Charlotte, NC | 2026-10-22 | |
| 5,524 | $52.8K | 0.0% | ETF | Low | Troy, MI | 2026-10-27 | |
| 4,573 | $44 | 0.0% | Core | Medium | Brussels, Czech Republic | 2026-10-22 | |
| 3,825 | $36.6K | 0.0% | Agg Growth | Medium | Guangzhou, France | 2026-10-26 | |
| 3,310 | $31.6K | 0.0% | GARP | Very High | Reno, NV | 2026-10-09 | |
| 3,167 | $30.3K | 0.0% | Index | Very Low | St. Louis, MO | 2026-10-20 | |
| 2,973 | $28.4K | 0.0% | Index | Low | San Francisco, CA | 2026-10-08 | |
| 2,529 | $24.2K | 0.0% | Agg Growth | Low | Tokyo, Mexico | 2026-10-22 | |
| 2,200 | $21.0K | 0.0% | ETF | Medium | Kokomo, IN | 2026-11-04 | |
| 2,019 | $19.3K | 0.0% | Growth | Very High | Hong Kong, South Korea | 2026-10-29 | |
| 1,476 | $14.1K | 0.0% | ETF | Medium | Scottsdale, AZ | 2026-10-14 | |
| 1,402 | $13.4K | 0.0% | Core | Medium | Birmingham, AL | 2026-11-04 | |
| 1,167 | $11.2K | 0.0% | Value | Medium | Rancho Santa Fe, CA | 2026-10-14 | |
| 1,128 | $10.8K | 0.0% | ETF | Medium | Akron, OH | 2026-10-13 | |
| 1,000 | $9.6K | 0.0% | Core | N/A | Tampa, FL | 2026-10-30 | |
| 1,000 | $9.6K | 0.0% | Core | Low | Chicago, IL | 2026-10-27 | |
| 1,000 | $9.6K | 0.0% | ETF | Low | Aventura, FL | 2026-10-15 | |
| 955 | $9.1K | 0.0% | Growth | Low | St Louis, MO | 2026-11-05 | |
| 814 | $7.8K | 0.0% | Core | Low | Springfield, MA | 2026-10-05 | |
| 736 | $7.0K | 0.0% | ETF | Very Low | Sylvania, OH | 2026-10-26 | |
| 631 | $6.0K | 0.0% | Index | Low | Atlanta, GA | 2026-10-23 | |
| 452 | $4.3K | 0.0% | ETF | Medium | Encinitas, CA | 2026-10-21 | |
| 340 | $3.3K | 0.0% | ETF | Low | Fort Lauderdale, FL | 2026-10-30 | |
| 306 | $2.9K | 0.0% | GARP | Low | Phoenix, AZ | 2026-10-02 | |
| 265 | $2.5K | 0.0% | Core | Very Low | Saint Louis, MO | 2026-10-27 | |
| 209 | $2.0K | 0.0% | Index | Very Low | Foster City, CA | 2026-10-08 | |
| 200 | $1.9K | 0.0% | Core | Low | Higganum, CT | 2026-11-02 | |
| 177 | $1.7K | 0.0% | ETF | Low | Concord, CA | 2026-10-21 | |
| 134 | $1.3K | 0.0% | Index | Low | San Francisco, CA | 2026-11-03 | |
| 117 | $1.1K | 0.0% | Core | Medium | Orchard Park, NY | 2026-11-05 | |
| 60 | $574 | 0.0% | Index | Low | Minneapolis, MN | 2026-11-05 | |
| 40 | $382 | 0.0% | ETF | Low | Wakefield, MA | 2026-11-03 | |
| 21 | $201 | 0.0% | ETF | Medium | Hendersonville, Tn 37075, TN | 2026-11-03 | |
| 6 | $57 | 0.0% | Growth | Low | Tampa, FL | 2026-10-16 | |
| 1 | $11 | 0.0% | ETF | Low | Herndon, VA | 2026-10-30 |