CUSIP: 00847X104 | NYSE | Healthcare · Biotechnology | Small Cap | 880 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/AFarallon Capital Management, L.L.C. with Farallon Healthcare Partners (GP), L.L.C., Farallon Capital Partners, L.P., Farallon Capital Institutional Partners, L.P., +10 more | 5,917,400 | 9.9% | New 5%+ stake | Jun 30, 2026 | No 13F filer matched |
| 13GD. E. Shaw & Co., L.P. | 3,034,031 | 5.1% | New 5%+ stake | Jun 25, 2026 | No 13F filer matched |
| Style | Turnover | Location | Filed | ||||
|---|---|---|---|---|---|---|---|
| 1,886,412 | $62.7M | 0.1% | Growth | High | Senningerberg, Netherlands | 2026-10-15 | |
| 1,286,303 | $42.8M | 0.0% | Index | Low | Austin, TX | 2026-11-04 | |
| 198,666 | $6.6M | 0.0% | Core | Low | New York, NY | 2026-11-05 | |
| 85,516 | $2.8M | 0.1% | Value | Very High | Hong Kong, South Korea | 2026-10-16 | |
| 79,081 | $2.6M | 0.0% | Yield | Low | Denver, CO | 2026-11-03 | |
| 53,138 | $1.8M | 0.0% | Core | Medium | New York, NY | 2026-11-04 | |
| 50,314 | $1.7M | 0.3% | Value | High | Chicago, IL | 2026-10-22 | |
| 44,087 | $1.5M | 0.0% | Core | Medium | Toronto Ontario, Australia | 2026-11-02 | |
| 42,877 | $1.4M | 0.0% | Core | Very High | Chicago, IL | 2026-11-04 | |
| 34,059 | $1.1M | 0.0% | Value | Medium | Parsippany, NJ | 2026-10-13 | |
| 28,861 | $959.6K | 0.0% | Core | Medium | Richmond, VA | 2026-10-28 | |
| 26,617 | $885.0K | 0.1% | Momentum | Medium | Chicago, IL | 2026-10-30 | |
| 26,219 | $871.8K | 0.0% | Growth | Low | Bethesda, MD | 2026-10-29 | |
| 20,634 | $686.1K | 0.0% | Index | Very Low | Overland Park, KS | 2026-11-02 | |
| 19,208 | $613.1K | 0.0% | Core | Low | Plymouth, MN | 2026-10-13 | |
| 19,130 | $636.1K | 0.0% | GARP | High | Meridian, ID | 2026-10-22 | |
| 18,246 | $606.7K | 0.0% | Core | Low | Trenton, NJ | 2026-11-05 | |
| 15,925 | $529.5K | 0.0% | Index | Very Low | Phoenix, AZ | 2026-11-03 | |
| 14,731 | $489.8K | 0.4% | Core | High | San Juan, PR | 2026-11-03 | |
| 14,602 | $485.5K | 0.0% | Core | Medium | Charlotte, NC | 2026-10-15 | |
| 12,350 | $410.6K | 0.0% | Growth | Low | Los Angeles, CA | 2026-11-04 | |
| 10,893 | $362.7K | 0.0% | Growth | Medium | Shanghai, France | 2026-10-28 | |
| 9,495 | $315.7K | 0.0% | Growth | Low | Bethesda, MD | 2026-10-29 | |
| 8,157 | $271.2K | 0.0% | Growth | Medium | Carouge, Switzerland | 2026-11-03 | |
| 5,000 | $166.0K | 0.0% | Core | Very Low | Juneau, AK | 2026-10-15 | |
| 3,489 | $116.0K | 0.2% | Deep Value | Very High | London, United Kingdom | 2026-11-03 | |
| 3,051 | $101.4K | 0.0% | Growth | Low | Seoul, Malaysia | 2026-11-03 | |
| 2,824 | $94.0K | 0.0% | Core | Medium | London, United Kingdom | 2026-11-04 | |
| 2,073 | $69.0K | 0.0% | Core | Medium | Brussels, Czech Republic | 2026-10-22 | |
| 2,001 | $66.5K | 0.0% | GARP | Low | Phoenix, AZ | 2026-10-02 | |
| 1,579 | $52.5K | 0.0% | ETF | Low | Concord, CA | 2026-10-21 | |
| 1,517 | $50.4K | 0.0% | Agg Growth | Medium | Guangzhou, France | 2026-10-26 | |
| 1,415 | $48 | 0.0% | Core | Low | Frankfurt, Hong Kong | 2026-10-27 | |
| 1,396 | $46.4K | 0.0% | Index | Very Low | St. Louis, MO | 2026-10-20 | |
| 1,197 | $39.8K | 0.0% | GARP | Medium | Charlotte, NC | 2026-10-22 | |
| 1,100 | $36.6K | 0.0% | Core | Medium | Columbus, OH | 2026-10-30 | |
| 805 | $26.8K | 0.0% | ETF | Low | Los Altos, CA | 2026-11-05 | |
| 638 | $21.2K | 0.0% | Index | Very Low | Foster City, CA | 2026-10-08 | |
| 599 | $19.9K | 0.0% | Value | Medium | Rancho Santa Fe, CA | 2026-10-14 | |
| 590 | $19.6K | 0.0% | Core | Medium | Birmingham, AL | 2026-11-04 | |
| 500 | $16.6K | 0.0% | Core | Low | Charleston, WV | 2026-10-19 | |
| 422 | $14.0K | 0.0% | Index | Low | San Francisco, CA | 2026-10-08 | |
| 419 | $13.9K | 0.0% | Index | Very Low | Cincinnati, OH | 2026-11-05 | |
| 399 | $13.3K | 0.0% | Index | Low | Atlanta, GA | 2026-10-23 | |
| 370 | $12.3K | 0.0% | ETF | Very Low | Sylvania, OH | 2026-10-26 | |
| 369 | $12.3K | 0.0% | ETF | Medium | Encinitas, CA | 2026-10-21 | |
| 320 | $10.6K | 0.0% | Core | Low | Memphis, TN | 2026-10-26 | |
| 314 | $10.4K | 0.0% | ETF | Medium | Akron, OH | 2026-10-13 | |
| 288 | $9.4K | 0.0% | Growth | Low | Bloomington, IN | 2026-10-09 | |
| 271 | $9.0K | 0.0% | ETF | Low | Fort Lauderdale, FL | 2026-10-30 | |
| 237 | $7.9K | 0.0% | ETF | Very Low | Orinda, CA | 2026-10-29 | |
| 233 | $7.7K | 0.0% | Growth | Low | Tampa, FL | 2026-10-16 | |
| 200 | $6.7K | 0.0% | Growth | Low | Abingdon, VA | 2026-11-02 | |
| 174 | $5.8K | 0.0% | Index | Low | Minneapolis, MN | 2026-11-05 | |
| 124 | $4.1K | 0.0% | Growth | Very High | Hong Kong, South Korea | 2026-10-29 | |
| 100 | $3.3K | 0.0% | ETF | Medium | Denver, CO | 2026-10-14 | |
| 83 | $2.8K | 0.0% | ETF | Low | Princeton, NJ | 2026-10-19 | |
| 66 | $2.2K | 0.0% | Growth | Low | St Louis, MO | 2026-11-05 | |
| 64 | $2.1K | 0.0% | ETF | Low | Hunt Valley, MD | 2026-10-23 | |
| 59 | $2.0K | 0.0% | Core | Very Low | Saint Louis, MO | 2026-10-27 | |
| 40 | $1.3K | 0.0% | GARP | Low | Mansfield, OH | 2026-10-27 | |
| 32 | $1.1K | 0.0% | Agg Growth | Low | Tokyo, Mexico | 2026-10-22 | |
| 27 | $898 | 0.0% | ETF | Low | New York, NY | 2026-10-28 | |
| 20 | $665 | 0.0% | Index | Low | San Francisco, CA | 2026-11-03 | |
| 16 | $532 | 0.0% | Core | Low | Manchester, VT | 2026-10-22 | |
| 11 | $350 | 0.0% | Core | Low | Keene, NH | 2026-10-27 | |
| 7 | $0 | 0.0% | Value | High | London, United Kingdom | 2026-10-30 | |
| 2 | $67 | 0.0% | ETF | Very Low | Hermitage, PA | 2026-11-03 | |
| 2 | $67 | 0.0% | ETF | Medium | Scottsdale, AZ | 2026-10-14 | |
| 2 | $67 | 0.0% | ETF | Medium | Hunt Valley, MD | 2026-11-03 |