CUSIP: 92854B109 | NYSE | Healthcare · Biotechnology | Micro Cap | 91 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 |
|---|---|---|---|---|---|
| 13D/AWilliams Gregg with Gregg G. Williams 2006 Trust, Williams International Co. LLC, Sam B. Williams 1995 Generation Skipping Trust, +1 more | 43,218,419 | 47.1% | New 5%+ stake | May 15, 2026 | No 13F filer matched |
| Style | Turnover | Location | Filed | ||||
|---|---|---|---|---|---|---|---|
| 607,276 | $753.0K | 0.1% | ETF | Low | Goring On Thames, United Kingdom | 2026-10-19 | |
| 518,622 | $643.2K | 0.0% | Index | Very Low | Boston, MA | 2026-11-06 | |
| 320,565 | $397.5K | 0.0% | ETF | Low | Waltham, MA | 2026-11-02 | |
| 25,000 | $31.0K | 0.0% | ETF | High | Needham, MA | 2026-10-09 | |
| 15,369 | $20.1K | 0.0% | ETF | Medium | New York, NY | 2026-11-03 | |
| 10,000 | $12.4K | 0.0% | Growth | Low | Burbank, CA | 2026-10-20 | |
| 3,787 | $4.7K | 0.0% | Core | Very High | Chicago, IL | 2026-11-04 | |
| 1,165 | $1.4K | 0.0% | Agg Growth | Low | Tokyo, Mexico | 2026-10-22 | |
| 103 | $128 | 0.0% | Agg Growth | Medium | Boca Raton, FL | 2026-10-15 | |
| 13 | $16 | 0.0% | Growth | Very High | Hong Kong, South Korea | 2026-10-29 | |
| 11 | $14 | 0.0% | Core | Medium | London, United Kingdom | 2026-11-06 |