CUSIP: 90240B106 | NYSE | Healthcare · Biotechnology | Mid Cap | 290 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/ABlackRock, Inc. | 3,304,658 | 4.8% | +328,430 | Sep 30, 2026 | 3,031,972 sh (Jun 30, 2026) |
| 13D/ARA Capital Management, L.P. with RA Capital Healthcare Fund, L.P. | 14,130,492 | 19.9% | +1,863,917 | Sep 15, 2026 | 12,198,625 sh (Jun 30, 2026) |
| 13GBVF Partners L P with BVF GP Holdings LLC, Biotechnology Value Fund L P, BVF I GP LLC, +4 more | 4,215,886 | 6.1% | New 5%+ stake | Sep 14, 2026 | No 13F filer matched |
| 13GParadigm BioCapital Advisors GP LLC with Paradigm BioCapital International Fund Ltd. | 3,473,453 | 5.8% | New 5%+ stake | Sep 10, 2026 | No 13F filer matched |
| 13G/ANextech VI GP S.a. r.l. | 3,553,585 | 6.0% | New 5%+ stake | Jun 30, 2026 | No 13F filer matched |
| 13G/AFarallon Capital Management, L.L.C. with Farallon Healthcare Partners (GP), L.L.C., Farallon F5 (GP), L.L.C., Farallon Institutional (GP) V, L.L.C., +10 more | 6,000 | 0.0% | Newly reported | Jun 30, 2026 | No 13F filer matched |
| Style | Turnover | Location | Filed | ||||
|---|---|---|---|---|---|---|---|
| 750,000 | $16.4M | 24.5% | Growth | Very Low | Menlo Park, CA | 2026-10-23 | |
| 328,962 | $7.2M | 0.0% | Index | Low | Austin, TX | 2026-11-04 | |
| 103,901 | $2.3M | 0.0% | Core | Low | New York, NY | 2026-11-05 | |
| 82,072 | $1.8M | 0.0% | Core | Low | New York, NY | 2026-10-26 | |
| 79,051 | $1.7M | 0.0% | Yield | Low | Denver, CO | 2026-11-03 | |
| 31,000 | $678.0K | 0.0% | Core | Medium | Columbus, OH | 2026-10-30 | |
| 28,974 | $633.7K | 0.0% | Growth | Medium | New York, NY | 2026-10-16 | |
| 27,349 | $598.1K | 0.0% | Core | Medium | New York, NY | 2026-11-04 | |
| 23,085 | $504.9K | 0.0% | Index | Very Low | Overland Park, KS | 2026-11-02 | |
| 21,020 | $459.7K | 0.1% | ETF | Low | Woburn, MA | 2026-10-28 | |
| 17,710 | $387.3K | 0.0% | Growth | Low | Bethesda, MD | 2026-10-29 | |
| 17,056 | $373.0K | 0.0% | Value | Very High | Hong Kong, South Korea | 2026-10-16 | |
| 10,889 | $239.3K | 0.0% | Growth | Medium | Shanghai, France | 2026-10-28 | |
| 3,050 | $66.7K | 0.0% | Growth | Low | Seoul, Malaysia | 2026-11-03 | |
| 2,475 | $54.1K | 0.0% | Growth | Very High | Hong Kong, South Korea | 2026-10-29 | |
| 2,024 | $44.3K | 0.0% | Core | Medium | Hilton Head Island, SC | 2026-10-23 | |
| 1,701 | $37.2K | 0.0% | Agg Growth | Medium | Guangzhou, France | 2026-10-26 | |
| 1,600 | $35.0K | 0.0% | Growth | Medium | Sugar Land, TX | 2026-11-03 | |
| 1,217 | $26.6K | 0.0% | GARP | Medium | Charlotte, NC | 2026-10-22 | |
| 829 | $18.1K | 0.0% | Index | Very Low | St. Louis, MO | 2026-10-20 | |
| 819 | $17.9K | 0.0% | GARP | Low | Phoenix, AZ | 2026-10-02 | |
| 452 | $9.9K | 0.0% | Index | Very Low | Foster City, CA | 2026-10-08 | |
| 364 | $8.0K | 0.0% | Growth | Low | St Louis, MO | 2026-11-05 | |
| 223 | $4.9K | 0.0% | ETF | Low | Fort Lauderdale, FL | 2026-10-30 | |
| 144 | $3.2K | 0.0% | ETF | Medium | Akron, OH | 2026-10-13 | |
| 75 | $1.6K | 0.0% | Index | Low | San Francisco, CA | 2026-10-08 | |
| 59 | $1.3K | 0.0% | Index | Low | Minneapolis, MN | 2026-11-05 | |
| 47 | $1.0K | 0.0% | Core | Medium | Birmingham, AL | 2026-11-04 | |
| 43 | $940 | 0.0% | Index | Low | Atlanta, GA | 2026-10-23 | |
| 19 | $408 | 0.0% | ETF | Low | Herndon, VA | 2026-10-30 | |
| 12 | $263 | 0.0% | ETF | Very Low | Sylvania, OH | 2026-10-26 | |
| 9 | $0 | 0.0% | Value | High | London, United Kingdom | 2026-10-30 | |
| 7 | $153 | 0.0% | Value | High | Cheyenne, WY | 2026-10-28 | |
| 2 | $43 | 0.0% | Agg Growth | Low | Dallas, TX | 2026-11-03 | |
| 1 | $22 | 0.0% | ETF | Very Low | Boston, MA | 2026-10-26 | |
| 1 | $22 | 0.0% | Agg Growth | Low | Tokyo, Mexico | 2026-10-22 |