CUSIP: 04683R106 | NYSE | Healthcare · Biotechnology | Small Cap | 382 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 |
|---|---|---|---|---|---|
| 13GTang Capital Management, LLC with Tang Capital Partners, LP, Tang Capital Partners International, LP, Tang Capital Partners III, Inc, +1 more | 4,814,700 | 6.0% | New 5%+ stake | Oct 6, 2026 | No 13F filer matched |
| Style | Turnover | Location | Filed | ||||
|---|---|---|---|---|---|---|---|
| 1,300,324 | $6.8M | 0.0% | Index | Low | Austin, TX | 2026-11-04 | |
| 345,077 | $1.8M | 0.0% | Core | Medium | Geneva 73, Switzerland | 2026-10-16 | |
| 196,724 | $1.0M | 0.0% | Core | Low | New York, NY | 2026-11-05 | |
| 172,000 | $896.1K | 0.3% | ETF | Low | Woburn, MA | 2026-10-28 | |
| 171,100 | $891.4K | 0.0% | Core | Medium | Columbus, OH | 2026-10-30 | |
| 50,876 | $265.1K | 0.0% | Index | Very Low | Overland Park, KS | 2026-11-02 | |
| 34,225 | $178.3K | 0.0% | Core | Very High | Chicago, IL | 2026-11-04 | |
| 24,500 | $127.6K | 0.0% | ETF | Low | Altamonte Springs, FL | 2026-10-29 | |
| 16,100 | $83.9K | 0.0% | Growth | Medium | Foster City, CA | 2026-10-13 | |
| 14,875 | $77.5K | 0.0% | ETF | Medium | Birmingham, AL | 2026-11-03 | |
| 14,634 | $75.8K | 0.0% | Growth | Medium | Shanghai, France | 2026-10-28 | |
| 11,943 | $62.2K | 0.0% | Growth | Medium | St. Louis, MO | 2026-10-22 | |
| 11,685 | $60.9K | 0.0% | Growth | Low | Bethesda, MD | 2026-10-29 | |
| 11,266 | $58.1K | 0.0% | Core | Low | Plymouth, MN | 2026-10-13 | |
| 8,700 | $45.3K | 0.0% | ETF | Low | Brentwood, TN | 2026-10-15 | |
| 6,754 | $35.2K | 0.0% | Core | Medium | New York, NY | 2026-11-04 | |
| 5,000 | $26.0K | 0.0% | Growth | Very High | New York, NY | 2026-10-16 | |
| 4,397 | $22.9K | 0.0% | GARP | Low | Phoenix, AZ | 2026-10-02 | |
| 4,099 | $21.4K | 0.0% | Growth | Low | Seoul, Malaysia | 2026-11-03 | |
| 1,801 | $9.4K | 0.0% | Agg Growth | Medium | Guangzhou, France | 2026-10-26 | |
| 1,398 | $7.3K | 0.0% | GARP | Medium | Charlotte, NC | 2026-10-22 | |
| 588 | $3.1K | 0.0% | ETF | Very Low | Sylvania, OH | 2026-10-26 | |
| 494 | $2.6K | 0.0% | Index | Low | San Francisco, CA | 2026-10-08 | |
| 490 | $2.6K | 0.0% | Index | Very Low | Foster City, CA | 2026-10-08 | |
| 304 | $1.6K | 0.0% | Value | Medium | Rancho Santa Fe, CA | 2026-10-14 | |
| 286 | $1.5K | 0.0% | Index | Low | Minneapolis, MN | 2026-11-05 | |
| 246 | $1.3K | 0.0% | Core | Medium | Birmingham, AL | 2026-11-04 | |
| 122 | $636 | 0.0% | ETF | Medium | Akron, OH | 2026-10-13 | |
| 116 | $604 | 0.0% | ETF | Medium | Encinitas, CA | 2026-10-21 | |
| 106 | $552 | 0.0% | Index | Very Low | St. Louis, MO | 2026-10-20 | |
| 100 | $521 | 0.0% | ETF | Low | Austin, TX | 2026-11-02 | |
| 73 | $380 | 0.0% | Growth | Low | Tampa, FL | 2026-10-16 | |
| 55 | $287 | 0.0% | Growth | Very High | Hong Kong, South Korea | 2026-10-29 | |
| 43 | $0 | 0.0% | Value | High | London, United Kingdom | 2026-10-30 | |
| 2 | $10 | 0.0% | Agg Growth | Low | Tokyo, Mexico | 2026-10-22 |