CUSIP: 799566104 | NYSE | Healthcare · Biotechnology | Small Cap | 454 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/AFMR LLC | 37,293,854 | 12.5% | New 5%+ stake | Sep 30, 2026 | 92d ahead of 13F (37,429,515 sh) · −135,661 |
| 13G/ARobert Nelsen with Arch Venture Fund X Overage, L.P., Arch Venture Partners IX, L.P., Arch Venture Partners IX Overage, L.P., +11 more | 46,173,125 | 15.4% | New 5%+ stake | Jun 30, 2026 | No 13F filer matched |
| Style | Turnover | Location | Filed | ||||
|---|---|---|---|---|---|---|---|
| 285,886 | $833.4K | 0.0% | Index | Low | Austin, TX | 2026-11-04 | |
| 128,012 | $373.2K | 0.0% | Core | Medium | New York, NY | 2026-11-04 | |
| 88,950 | $259.3K | 0.0% | Core | Medium | Richmond, VA | 2026-10-28 | |
| 83,705 | $244.0K | 0.0% | Growth | Low | Bethesda, MD | 2026-10-29 | |
| 79,232 | $231.0K | 0.0% | Index | Very Low | Overland Park, KS | 2026-11-02 | |
| 55,691 | $162.3K | 0.0% | Core | Low | Trenton, NJ | 2026-11-05 | |
| 54,622 | $159.0K | 0.0% | Growth | Medium | Shanghai, France | 2026-10-28 | |
| 51,000 | $148.7K | 0.0% | Core | Low | Irvine, CA | 2026-10-30 | |
| 48,623 | $141.7K | 0.0% | Index | Very Low | Phoenix, AZ | 2026-11-03 | |
| 40,617 | $118.4K | 0.0% | Core | Very High | Chicago, IL | 2026-11-04 | |
| 39,503 | $110.2K | 0.0% | Core | Low | Plymouth, MN | 2026-10-13 | |
| 32,132 | $93.7K | 0.0% | Growth | Medium | Carouge, Switzerland | 2026-11-03 | |
| 31,908 | $93.0K | 0.0% | Growth | Low | Bethesda, MD | 2026-10-29 | |
| 29,700 | $86.6K | 0.1% | Core | Very High | New York, NY | 2026-10-22 | |
| 23,545 | $68.6K | 0.0% | Core | Very Low | Seattle, WA | 2026-10-27 | |
| 22,494 | $66 | 0.0% | ETF | Low | Fairfield, IA | 2026-11-02 | |
| 22,000 | $64.1K | 0.0% | Agg Growth | Low | Coatesville, PA | 2026-10-29 | |
| 20,050 | $58.4K | 0.0% | ETF | Low | Omaha, NE | 2026-10-28 | |
| 19,801 | $57.7K | 0.0% | Core | Low | Des Moines, IA | 2026-11-02 | |
| 16,571 | $48.3K | 0.0% | Index | Very Low | Philadelphia, PA | 2026-11-03 | |
| 16,000 | $46.6K | 0.0% | ETF | Very Low | Los Angeles, CA | 2026-10-30 | |
| 15,711 | $45.8K | 0.0% | Core | Medium | Birmingham, AL | 2026-10-26 | |
| 15,298 | $44.6K | 0.0% | Growth | Low | Seoul, Malaysia | 2026-11-03 | |
| 15,000 | $43.7K | 0.0% | Core | High | Zurich, Switzerland | 2026-10-29 | |
| 14,391 | $42.0K | 0.0% | Core | Low | Zurich, Switzerland | 2026-11-03 | |
| 12,270 | $35.8K | 0.0% | Index | Very Low | Atlanta, GA | 2026-10-23 | |
| 11,972 | $34.9K | 0.0% | Core | Medium | Baton Rouge, LA | 2026-10-19 | |
| 11,084 | $32.3K | 0.0% | Index | Very Low | St. Louis, MO | 2026-10-20 | |
| 10,981 | $24.9K | 0.0% | ETF | High | Brighton, MI | 2026-10-19 | |
| 10,500 | $30.6K | 0.0% | Growth | Low | Menlo Park, CA | 2026-10-30 | |
| 10,000 | $28.9K | 0.0% | Core | Low | Toronto, Australia | 2026-10-16 | |
| 7,140 | $20.8K | 0.0% | ETF | Very Low | Redwood City, CA | 2026-11-02 | |
| 6,139 | $17.9K | 0.0% | Agg Growth | Medium | Guangzhou, France | 2026-10-26 | |
| 5,656 | $16.5K | 0.0% | GARP | Medium | Charlotte, NC | 2026-10-22 | |
| 5,000 | $14.6K | 0.0% | Growth | Low | Wellesley, MA | 2026-10-22 | |
| 3,976 | $11.6K | 0.0% | Growth | Medium | Helsinki, Hungary | 2026-11-05 | |
| 3,507 | $10.2K | 0.0% | Index | Low | Atlanta, GA | 2026-10-23 | |
| 3,142 | $9.2K | 0.0% | ETF | Low | Brentwood, TN | 2026-10-15 | |
| 2,963 | $8.6K | 0.0% | Agg Growth | Low | Tokyo, Mexico | 2026-10-22 | |
| 2,590 | $7.6K | 0.0% | Index | Low | San Francisco, CA | 2026-10-08 | |
| 2,230 | $6.5K | 0.0% | Growth | Low | Tampa, FL | 2026-10-16 | |
| 2,100 | $6.1K | 0.0% | GARP | Very High | Reno, NV | 2026-10-09 | |
| 2,000 | $5.8K | 0.0% | GARP | Medium | New York, NY | 2026-11-05 | |
| 1,623 | $4.7K | 0.0% | ETF | Medium | Akron, OH | 2026-10-13 | |
| 1,091 | $3.2K | 0.0% | Core | Medium | Birmingham, AL | 2026-11-04 | |
| 1,049 | $3.1K | 0.0% | ETF | Medium | Scottsdale, AZ | 2026-10-14 | |
| 1,000 | $2.9K | 0.0% | ETF | Medium | Denver, CO | 2026-10-14 | |
| 975 | $2.8K | 0.0% | ETF | Medium | Midvale, UT | 2026-10-20 | |
| 919 | $2.7K | 0.0% | Value | Medium | Rancho Santa Fe, CA | 2026-10-14 | |
| 316 | $921 | 0.0% | Index | Very Low | Foster City, CA | 2026-10-08 | |
| 284 | $828 | 0.0% | Core | Medium | Carmel, IN | 2026-11-05 | |
| 204 | $595 | 0.0% | Value | High | Cheyenne, WY | 2026-10-28 | |
| 200 | $583 | 0.0% | ETF | Low | Yorkville, IL | 2026-10-27 | |
| 100 | $292 | 0.0% | ETF | Medium | Kokomo, IN | 2026-11-04 | |
| 53 | $0 | 0.0% | Value | High | London, United Kingdom | 2026-10-30 | |
| 20 | $58 | 0.0% | Core | N/A | New York, NY | 2026-11-03 |