CUSIP: 03528H109 | NYSE | Healthcare · Biotechnology | Micro Cap | 170 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/AMichael Catelani | 2,468,103 | 7.0% | New 5%+ stake | Jan 5, 2026 | No 13F filer matched |
| Style | Turnover | Location | Filed | ||||
|---|---|---|---|---|---|---|---|
| 494,949 | $1.5M | 0.0% | Core | Low | Great Falls, MT | 2026-10-28 | |
| 62,020 | $181.7K | 0.0% | ETF | Medium | Southfield, MI | 2026-10-08 | |
| 47,442 | $139.0K | 0.0% | Core | Low | New York, NY | 2026-11-05 | |
| 43,000 | $126.0K | 0.0% | Growth | Low | Santa Monica, CA | 2026-11-02 | |
| 40,500 | $118.7K | 0.0% | Core | Low | Austin, TX | 2026-11-02 | |
| 36,000 | $105.5K | 0.0% | Core | N/A | Colorado Springs, CO | 2026-10-21 | |
| 35,000 | $102.6K | 0.0% | ETF | Low | Walnut Creek, CA | 2026-10-16 | |
| 30,000 | $87.9K | 0.0% | Core | Medium | Zurich, Switzerland | 2026-10-16 | |
| 22,500 | $65.9K | 0.0% | Core | Low | Cedar Rapids, IA | 2026-11-05 | |
| 15,810 | $46.3K | 0.0% | Core | Low | Brooklyn, OH | 2026-11-04 | |
| 15,649 | $45.9K | 0.0% | ETF | Medium | San Francisco, CA | 2026-10-16 | |
| 13,752 | $40.3K | 0.0% | ETF | Medium | Saratoga Springs, NY | 2026-10-20 | |
| 12,000 | $35.2K | 0.0% | ETF | Low | Summit, NJ | 2026-10-23 | |
| 10,026 | $29.4K | 0.0% | Growth | Low | Englewood, CO | 2026-10-14 | |
| 5,000 | $14.7K | 0.0% | ETF | Very Low | Napa, CA | 2026-10-26 | |
| 3,039 | $8.9K | 0.0% | Growth | Very Low | Pittsburgh, PA | 2026-11-06 | |
| 1,634 | $4.8K | 0.0% | Yield | Very Low | Ashland, OH | 2026-10-28 | |
| 1,500 | $4.4K | 0.0% | Core | Low | Chicago, IL | 2026-10-27 | |
| 1,170 | $3.4K | 0.0% | Agg Growth | Low | Tokyo, Mexico | 2026-10-22 | |
| 680 | $2.0K | 0.0% | Growth | Low | Tampa, FL | 2026-10-16 | |
| 602 | $1.8K | 0.0% | Core | Very Low | Saint Louis, MO | 2026-10-27 | |
| 500 | $1.5K | 0.0% | Growth | Low | St Louis, MO | 2026-11-05 | |
| 400 | $1.2K | 0.0% | Index | Low | Minneapolis, MN | 2026-11-05 | |
| 37 | $108 | 0.0% | Growth | Very High | Hong Kong, South Korea | 2026-10-29 | |
| 2 | $6 | 0.0% | Core | Medium | London, United Kingdom | 2026-11-06 |