CUSIP: 00166B105 | NYSE | Healthcare · Biotechnology | Micro Cap | 325 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/AGoodman Corey S with venBio Global Strategic GP II, L.P., venBio Global Strategic GP II, Ltd., venBio Global Strategic Fund II L.P., +3 more | 12,927,442 | 10.0% | New 5%+ stake | Oct 14, 2026 | No 13F filer matched |
| 13G/AChen Yu with TCG Crossover Fund III, L.P., TCG Crossover GP III, LLC, TCG Crossover Fund II, L.P., +1 more | 5,655,487 | 4.2% | Newly reported | Jun 30, 2026 | No 13F filer matched |
| 13D/AJean George with LSV Associates, LLC, LSV Associates II, LLC, Lightstone Ventures, L.P., +3 more | 2,942,525 | 2.2% | Newly reported | May 27, 2026 | No 13F filer matched |
| 13D/AGoodman Corey S with Adelman Robert J, venBio Global Strategic GP II, Ltd., venBio Global Strategic GP II, L.P., +3 more | 13,163,549 | 10.0% | New 5%+ stake | Feb 2, 2026 | No 13F filer matched |
| Style | Turnover | Location | Filed | ||||
|---|---|---|---|---|---|---|---|
| 95,158 | $131.8K | 0.0% | Index | Low | Austin, TX | 2026-11-04 | |
| 38,090 | $44.9K | 0.0% | Core | Low | Plymouth, MN | 2026-10-13 | |
| 24,260 | $33.7K | 0.0% | Core | Medium | New York, NY | 2026-11-04 | |
| 17,500 | $24.3K | 0.0% | ETF | Medium | Los Angeles, CA | 2026-10-22 | |
| 13,977 | $19.4K | 0.0% | Core | Medium | Baton Rouge, LA | 2026-10-19 | |
| 13,220 | $18.4K | 0.0% | Growth | Low | Los Angeles, CA | 2026-11-04 | |
| 13,173 | $18.3K | 0.0% | Core | Low | Des Moines, IA | 2026-11-02 | |
| 12,305 | $17.1K | 0.0% | Growth | Low | Bethesda, MD | 2026-10-29 | |
| 10,800 | $14.6K | 0.0% | Growth | Medium | Shanghai, France | 2026-10-28 | |
| 10,352 | $14.4K | 0.0% | ETF | Low | Waltham, MA | 2026-11-02 | |
| 10,001 | $13.9K | 0.0% | Index | Very Low | Philadelphia, PA | 2026-11-03 | |
| 3,539 | $4.9K | 0.0% | GARP | Medium | Charlotte, NC | 2026-10-22 | |
| 1,106 | $1.5K | 0.0% | Index | Very Low | St. Louis, MO | 2026-10-20 | |
| 1,000 | $1.4K | 0.0% | Core | Very Low | Miami, FL | 2026-10-23 | |
| 921 | $1.3K | 0.0% | Core | Medium | Birmingham, AL | 2026-11-04 | |
| 624 | $867 | 0.0% | Index | Very Low | Foster City, CA | 2026-10-08 | |
| 202 | $281 | 0.0% | ETF | Very Low | Sylvania, OH | 2026-10-26 | |
| 23 | $32 | 0.0% | Index | Low | San Francisco, CA | 2026-10-08 | |
| 15 | $21 | 0.0% | Growth | Very High | Hong Kong, South Korea | 2026-10-29 | |
| 15 | $21 | 0.0% | Agg Growth | Low | Tokyo, Mexico | 2026-10-22 |