CUSIP: 929033207 | NYSE | Healthcare · Biotechnology | Small Cap | 154 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/AFMR LLC | 6,509,996 | 12.0% | +1,577,847 | Jul 31, 2026 | 31d ahead of 13F (4,932,149 sh) · +1,577,847 |
| 13D/ARA Capital Management, L.P. with RA Capital Healthcare Fund, L.P. |
| Style | Turnover | Location | Filed | ||||
|---|---|---|---|---|---|---|---|
| 78,371 | $1.5M | 0.0% | Yield | Low | Denver, CO | 2026-11-03 | |
| 53,732 | $1.0M | 0.1% | Agg Growth | Very Low | New Brunswick, NJ | 2026-10-26 | |
| 47,400 | $904.4K | 0.0% | Core | Medium | Columbus, OH | 2026-10-30 | |
| 22,564 | $430.5K | 0.0% | Core | Medium | New York, NY | 2026-11-04 | |
| 16,811 | $320.8K | 0.0% | Growth | Low | Bethesda, MD | 2026-10-29 | |
| 11,586 | $221.1K | 0.0% | Index | Very Low | Overland Park, KS | 2026-11-02 | |
| 10,795 | $197.9K | 0.0% | Growth | Medium | Shanghai, France | 2026-10-28 | |
| 4,730 | $90.2K | 0.0% | Core | Very High | Chicago, IL | 2026-11-04 | |
| 3,506 | $64.3K | 0.0% | Core | Medium | London, United Kingdom | 2026-11-04 | |
| 3,500 | $66 | 0.0% | Growth | Very High | New York, NY | 2026-10-16 | |
| 3,023 | $57.7K | 0.0% | Growth | Low | Seoul, Malaysia | 2026-11-03 | |
| 1,960 | $37.4K | 0.0% | GARP | Low | Mansfield, OH | 2026-10-27 | |
| 1,487 | $28.4K | 0.0% | Index | Low | San Francisco, CA | 2026-11-03 | |
| 1,165 | $22.2K | 0.0% | Agg Growth | Medium | Guangzhou, France | 2026-10-26 | |
| 1,107 | $21.1K | 0.0% | GARP | Medium | Charlotte, NC | 2026-10-22 | |
| 728 | $13.9K | 0.0% | GARP | Low | Phoenix, AZ | 2026-10-02 | |
| 522 | $10.0K | 0.0% | Index | Very Low | Foster City, CA | 2026-10-08 | |
| 438 | $8.4K | 0.0% | Index | Very Low | St. Louis, MO | 2026-10-20 | |
| 418 | $8.0K | 0.0% | ETF | Very Low | Sylvania, OH | 2026-10-26 | |
| 337 | $6.4K | 0.0% | Index | Low | San Francisco, CA | 2026-10-08 | |
| 254 | $4.8K | 0.0% | Growth | Very High | Hong Kong, South Korea | 2026-10-29 | |
| 253 | $4.8K | 0.0% | Index | Low | Atlanta, GA | 2026-10-23 | |
| 213 | $4.1K | 0.0% | ETF | Medium | Encinitas, CA | 2026-10-21 | |
| 187 | $3.6K | 0.0% | ETF | Low | New York, NY | 2026-11-03 | |
| 131 | $2.5K | 0.0% | Core | Low | Baltimore, MD | 2026-10-27 | |
| 88 | $1.7K | 0.0% | Value | Medium | Rancho Santa Fe, CA | 2026-10-14 | |
| 65 | $1.2K | 0.0% | Core | Very Low | Saint Louis, MO | 2026-10-27 | |
| 57 | $1.1K | 0.0% | Core | Medium | Birmingham, AL | 2026-11-04 | |
| 20 | $382 | 0.0% | ETF | Medium | Akron, OH | 2026-10-13 | |
| 15 | $286 | 0.0% | Growth | Low | Tampa, FL | 2026-10-16 | |
| 9 | $171 | 0.0% | Agg Growth | Low | Dallas, TX | 2026-11-03 | |
| 3 | $63 | 0.0% | ETF | Low | Herndon, VA | 2026-10-30 | |
| 3 | $57 | 0.0% | Agg Growth | Low | Tokyo, Mexico | 2026-10-22 |
| 12,937,855 |
| 19.9% |
| +41,336 |
| Jul 16, 2026 |
| 16d ahead of 13F (2,402,095 sh) · +10,535,760 |
| 13G/AVhcp Co-Investment Holdings III, LLC | 5,676,370 | 9.9% | New 5%+ stake | Jun 30, 2026 | No 13F filer matched |
| 13G/AVerve Capital Limited | 3,410,892 | 6.3% | New 5%+ stake | Jun 30, 2026 | No 13F filer matched |
| 13G/AFhmlsp, L.L.C. with Fhmls XII, L.L.C., Frazier Life Sciences XII, L.P., Fhmls XII, L.P., +3 more | 2,258,001 | 4.2% | Newly reported | Jun 30, 2026 | No 13F filer matched |
| 13DForbion Growth III Management B.V. | 10,237,714 | 10.0% | New 5%+ stake | Dec 18, 2025 | No 13F filer matched |
| 13D/AReprogrammed Interchange LLC | 1,204,442 | 17.6% | New 5%+ stake | Oct 15, 2025 | No 13F filer matched |