CUSIP: 501575104 | NYSE | Healthcare · Biotechnology | Mid Cap | 540 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/ABlackRock, Inc. | 5,450,286 | 6.6% | New 5%+ stake | Sep 30, 2026 | 5,538,210 sh (Jun 30, 2026) |
| 13G/APrice T Rowe Associates Inc | 8,873,588 | 10.7% | +1,761,243 | Aug 31, 2026 | 7,112,980 sh (Jun 30, 2026) |
| 13G/AAtlas Venture Associates X, LLC with Atlas Venture Associates Opportunity I, LLC, Atlas Venture Associates Opportunity I, L.P., Atlas Venture Opportunity Fund I, L.P. | 2,384,685 | 2.9% | Newly reported | Jun 30, 2026 | No 13F filer matched |
| Style | Turnover | Location | Filed | ||||
|---|---|---|---|---|---|---|---|
| 693,290 | $77.5M | 0.0% | Index | Low | Austin, TX | 2026-11-04 | |
| 298,928 | $33.4M | 0.0% | Growth | Medium | Carouge, Switzerland | 2026-11-03 | |
| 223,806 | $25.0M | 0.0% | Core | Low | New York, NY | 2026-11-05 | |
| 189,736 | $21.3M | 0.1% | Growth | Medium | Strassen, Netherlands | 2026-11-03 | |
| 137,929 | $15.4M | 0.3% | Growth | Medium | New York, NY | 2026-11-03 | |
| 126,813 | $14.2M | 0.0% | Core | Medium | New York, NY | 2026-11-04 | |
| 56,913 | $6.4M | 0.0% | Index | Very Low | Overland Park, KS | 2026-11-02 | |
| 49,618 | $5.5M | 0.0% | Index | Very Low | Cincinnati, OH | 2026-11-05 | |
| 30,490 | $3.4M | 0.1% | Core | Low | Shawnee Mission, KS | 2026-11-03 | |
| 30,383 | $3.4K | 0.0% | Value | High | Chicago, IL | 2026-10-22 | |
| 21,321 | $2.4M | 0.5% | Value | High | Marblehead, MA | 2026-10-27 | |
| 18,396 | $2.1M | 0.1% | Core | Medium | New Haven, CT | 2026-11-05 | |
| 16,909 | $1.9M | 0.1% | Growth | Low | Bethesda, MD | 2026-10-29 | |
| 16,603 | $1.9M | 0.0% | Core | Low | Trenton, NJ | 2026-11-05 | |
| 15,812 | $1.7M | 0.1% | Growth | Medium | Shanghai, France | 2026-10-28 | |
| 14,486 | $1.6M | 0.0% | Index | Very Low | Phoenix, AZ | 2026-11-03 | |
| 12,083 | $1.4M | 0.0% | Growth | Medium | Frankfurt, Hong Kong | 2026-10-30 | |
| 10,747 | $1.2M | 0.0% | Growth | Low | Bethesda, MD | 2026-10-29 | |
| 10,700 | $1.2M | 0.0% | Core | Medium | Columbus, OH | 2026-10-30 | |
| 8,264 | $923.8K | 0.0% | Growth | Low | New York, NY | 2026-11-04 | |
| 7,758 | $867.3K | 0.0% | Core | Low | Des Moines, IA | 2026-11-02 | |
| 7,204 | $805.3K | 0.1% | Value | High | Cheyenne, WY | 2026-10-28 | |
| 6,432 | $719 | 0.0% | ETF | Low | Fairfield, IA | 2026-11-02 | |
| 6,036 | $674.8K | 0.0% | Index | Very Low | Philadelphia, PA | 2026-11-03 | |
| 5,729 | $640.4K | 0.6% | Core | High | San Juan, PR | 2026-11-03 | |
| 5,265 | $588.6K | 0.1% | ETF | Medium | Salem, OR | 2026-10-16 | |
| 5,165 | $577.4K | 0.0% | Core | Very High | Chicago, IL | 2026-11-04 | |
| 4,870 | $544.4K | 0.1% | Core | Medium | Baton Rouge, LA | 2026-10-19 | |
| 4,599 | $514.1K | 0.0% | Growth | Low | Seoul, Malaysia | 2026-11-03 | |
| 4,508 | $503.9K | 0.0% | Core | Medium | Minnetonka, MN | 2026-11-05 | |
| 4,316 | $482.5K | 0.0% | GARP | High | Meridian, ID | 2026-10-22 | |
| 3,883 | $434.1K | 0.0% | ETF | Low | Concord, CA | 2026-10-21 | |
| 3,584 | $394.7K | 0.0% | Core | Medium | Charlotte, NC | 2026-11-04 | |
| 3,152 | $352.4K | 0.0% | Core | Low | Zurich, Switzerland | 2026-11-03 | |
| 3,103 | $81.5K | 0.0% | Core | Low | Plymouth, MN | 2026-10-13 | |
| 3,000 | $335.4K | 0.0% | Core | Medium | Richmond, VA | 2026-10-28 | |
| 3,000 | $335.6K | 0.0% | ETF | Very Low | London, United Kingdom | 2026-10-27 | |
| 2,524 | $282.2K | 0.0% | GARP | Low | Toronto, South Africa | 2026-11-05 | |
| 2,357 | $257.6K | 0.0% | Growth | Low | Plymouth, MN | 2026-10-13 | |
| 2,181 | $244.0K | 0.0% | Core | Low | Goshen, IN | 2026-11-03 | |
| 2,073 | $231.7K | 0.0% | Index | Very Low | St. Louis, MO | 2026-10-20 | |
| 2,038 | $227.8K | 0.0% | Growth | Medium | New York, NY | 2026-10-16 | |
| 2,035 | $227.5K | 0.0% | Index | Low | Minneapolis, MN | 2026-11-05 | |
| 2,000 | $223.6K | 0.2% | ETF | Medium | Las Vegas, NV | 2026-10-21 | |
| 2,000 | $223.6K | 0.2% | Core | Medium | Birmingham, AL | 2026-10-26 | |
| 1,919 | $214.5K | 0.0% | GARP | Medium | Charlotte, NC | 2026-10-22 | |
| 1,913 | $213.9K | 0.0% | ETF | Low | Waltham, MA | 2026-11-02 | |
| 1,901 | $212.5K | 0.4% | ETF | Low | San Francisco, CA | 2026-11-02 | |
| 1,716 | $192 | 0.0% | Core | Medium | Brussels, Czech Republic | 2026-10-22 | |
| 1,596 | $178.4K | 0.0% | Agg Growth | Medium | Guangzhou, France | 2026-10-26 | |
| 947 | $105.9K | 0.0% | Growth | Low | St Louis, MO | 2026-11-05 | |
| 814 | $91.0K | 0.0% | Index | Very Low | Foster City, CA | 2026-10-08 | |
| 737 | $82.4K | 0.0% | Growth | Low | Tampa, FL | 2026-10-16 | |
| 592 | $65.4K | 0.0% | Core | Medium | London, United Kingdom | 2026-11-04 | |
| 515 | $57.6K | 0.0% | Core | Medium | Birmingham, AL | 2026-11-04 | |
| 352 | $39.4K | 0.1% | Deep Value | Very High | London, United Kingdom | 2026-11-03 | |
| 276 | $30.9K | 0.0% | ETF | Low | New York, NY | 2026-11-03 | |
| 241 | $26.9K | 0.0% | Agg Growth | Low | Tokyo, Mexico | 2026-10-22 | |
| 200 | $22.4K | 0.0% | ETF | Medium | Chicago, IL | 2026-10-14 | |
| 200 | $22.4K | 0.0% | Core | High | Zurich, Switzerland | 2026-10-29 | |
| 168 | $18.7K | 0.0% | Index | Low | Atlanta, GA | 2026-10-23 | |
| 150 | $16.8K | 0.0% | Agg Growth | High | Tokyo, Mexico | 2026-11-02 | |
| 112 | $12.5K | 0.0% | GARP | Low | Phoenix, AZ | 2026-10-02 | |
| 108 | $12.1K | 0.0% | Core | Very Low | Saint Louis, MO | 2026-10-27 | |
| 102 | $11 | 0.0% | Value | High | London, United Kingdom | 2026-10-30 | |
| 76 | $8.5K | 0.0% | ETF | Medium | Encinitas, CA | 2026-10-21 | |
| 43 | $4.8K | 0.0% | Index | Low | San Francisco, CA | 2026-10-08 | |
| 41 | $4.6K | 0.0% | ETF | Medium | Scottsdale, AZ | 2026-10-14 | |
| 31 | $3.5K | 0.0% | Core | Low | Manchester, VT | 2026-10-22 | |
| 25 | $2.8K | 0.0% | ETF | Very Low | Gap, PA | 2026-11-04 | |
| 24 | $2.7K | 0.0% | Core | Medium | Orchard Park, NY | 2026-11-05 | |
| 24 | $2.7K | 0.0% | ETF | Medium | San Diego, CA | 2026-10-29 | |
| 23 | $2.6K | 0.0% | ETF | Medium | Midvale, UT | 2026-10-20 | |
| 21 | $2.3K | 0.0% | Index | Low | San Francisco, CA | 2026-11-03 | |
| 14 | $1.6K | 0.0% | ETF | Very Low | Hermitage, PA | 2026-11-03 | |
| 14 | $1.6K | 0.0% | ETF | Low | New York, NY | 2026-10-28 | |
| 13 | $1.6K | 0.0% | ETF | Low | Herndon, VA | 2026-10-30 | |
| 11 | $1.2K | 0.0% | ETF | Low | Mcdonough, GA | 2026-10-13 | |
| 9 | $1.0K | 0.0% | ETF | Very Low | Tulsa, OK | 2026-11-05 | |
| 6 | $671 | 0.0% | ETF | Very Low | Minneapolis, MN | 2026-10-09 | |
| 5 | $559 | 0.0% | Growth | Very High | Hong Kong, South Korea | 2026-10-29 | |
| 5 | $559 | 0.0% | ETF | Low | Beaver, PA | 2026-10-16 | |
| 4 | $448 | 0.0% | ETF | Very Low | Sylvania, OH | 2026-10-26 | |
| 3 | $336 | 0.0% | Core | Very Low | Denver, CO | 2026-10-15 | |
| 2 | $259 | 0.0% | Core | Low | Keene, NH | 2026-10-27 | |
| 1 | $112 | 0.0% | ETF | Very Low | Boston, MA | 2026-10-26 | |
| 1 | $112 | 0.0% | ETF | Medium | Hunt Valley, MD | 2026-11-03 |