CUSIP: 04317A107 | NYSE | Healthcare · Biotechnology | Micro Cap | 127 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/ARA Capital Management, L.P. with RA Capital Healthcare Fund, L.P. | 18,415,956 | 37.9% | +604,333 | Jul 22, 2026 | 17,955,642 sh (Jun 30, 2026) |
| 13G/AKush Parmar with 5AM Opportunities II (GP), LLC, 5AM Opportunities II, L.P., 5AM Ventures VI, L.P., +1 more |
| Style | Turnover | Location | Filed | ||||
|---|---|---|---|---|---|---|---|
| 299,311 | $2.1M | 26.6% | Core | Very Low | Sausalito, CA | 2026-11-02 | |
| 101,355 | $721.6K | 0.0% | Core | Low | Las Vegas, NV | 2026-10-27 | |
| 44,815 | $319.1K | 0.0% | Index | Low | Austin, TX | 2026-11-04 | |
| 41,976 | $298.9K | 0.0% | Core | Low | New York, NY | 2026-11-05 | |
| 29,633 | $211.0K | 0.0% | Value | Very High | Hong Kong, South Korea | 2026-10-16 | |
| 20,700 | $147.4K | 0.0% | Growth | Medium | Foster City, CA | 2026-10-13 | |
| 11,372 | $81.0K | 0.0% | Index | Very Low | Overland Park, KS | 2026-11-02 | |
| 2,295 | $16.3K | 0.0% | ETF | Low | Carmel, IN | 2026-11-05 | |
| 1,971 | $14.0K | 0.0% | Core | Very High | Chicago, IL | 2026-11-04 | |
| 1,600 | $11.2K | 0.0% | Growth | Medium | Shanghai, France | 2026-10-28 | |
| 1,043 | $7.4K | 0.0% | Value | High | Cheyenne, WY | 2026-10-28 | |
| 944 | $6.7K | 0.0% | Core | Medium | New York, NY | 2026-11-04 | |
| 497 | $3.5K | 0.0% | Index | Very Low | Foster City, CA | 2026-10-08 | |
| 316 | $2.3K | 0.0% | GARP | Medium | Charlotte, NC | 2026-10-22 | |
| 235 | $1.7K | 0.0% | Index | Low | Minneapolis, MN | 2026-11-05 | |
| 155 | $1.1K | 0.0% | Growth | Medium | Boston, MA | 2026-10-05 | |
| 73 | $520 | 0.0% | Index | Low | San Francisco, CA | 2026-11-03 | |
| 36 | $256 | 0.0% | Growth | Very High | Hong Kong, South Korea | 2026-10-29 | |
| 8 | $57 | 0.0% | ETF | Very Low | Sylvania, OH | 2026-10-26 | |
| 3 | $21 | 0.0% | Agg Growth | Low | Dallas, TX | 2026-11-03 | |
| 2 | $14 | 0.0% | Core | Medium | Birmingham, AL | 2026-11-04 | |
| 1 | $7 | 0.0% | ETF | Medium | Encinitas, CA | 2026-10-21 |
| 2,353,304 |
| 4.8% |
| Newly reported |
| Jun 30, 2026 |
| No 13F filer matched |
| 13G/AVenrock Healthcare Capital Partners EG, L.P. | 2,043,596 | 4.2% | Newly reported | Jun 30, 2026 | No 13F filer matched |
| 13D/AGC Corp with GC Cell Corporation | 5,999,703 | 12.3% | New 5%+ stake | May 11, 2026 | No 13F filer matched |