CUSIP: 90184D100 | NYSE | Healthcare · Diagnostics & Research | Mid Cap | 854 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 | 9,535,193 | 14.4% | +775,112 | Sep 30, 2026 | 4,703,044 sh (Jun 30, 2026) |
| 13G/AARK Investment Management LLC | 3,385,850 | 5.1% | −1,163,953 | Aug 31, 2026 | No 13F filer matched |
| 13G/AArtisan Partners Asset Management Inc. | 4,802,017 | 7.7% | New 5%+ stake | Jun 30, 2026 | No 13F filer matched |
| Style | Turnover | Location | Filed | ||||
|---|---|---|---|---|---|---|---|
| 776,099 | $150.0M | 0.1% | Index | Very Low | Chiyoda-Ku, Tokyo, Mexico | 2026-10-29 | |
| 638,303 | $123.3K | 0.0% | GARP | Medium | Minneapolis, MN | 2026-11-05 | |
| 349,956 | $67.6M | 0.0% | Core | Low | New York, NY | 2026-11-05 | |
| 255,851 | $48.1M | 0.1% | Core | Medium | Charlotte, NC | 2026-11-04 | |
| 236,442 | $45.7M | 0.0% | Index | Low | Austin, TX | 2026-11-04 | |
| 209,258 | $40.4M | 0.0% | Core | Low | Des Moines, IA | 2026-11-02 | |
| 116,782 | $22.6M | 0.1% | Growth | Medium | San Francisco, CA | 2026-10-22 | |
| 95,929 | $18.5M | 0.1% | Index | Low | East Lansing, MI | 2026-10-27 | |
| 83,061 | $15.5M | 0.0% | Growth | Medium | Carouge, Switzerland | 2026-11-03 | |
| 74,949 | $14.5M | 0.0% | Index | Very Low | Overland Park, KS | 2026-11-02 | |
| 55,562 | $10.7M | 0.0% | Core | Medium | New York, NY | 2026-11-04 | |
| 52,086 | $10.1K | 0.0% | Core | Medium | Kobenhavn, Greece | 2026-10-22 | |
| 46,568 | $8.7M | 0.4% | Core | Medium | London, United Kingdom | 2026-11-04 | |
| 42,240 | $8.2M | 0.0% | Growth | Low | Los Angeles, CA | 2026-11-04 | |
| 29,925 | $5.8K | 0.0% | Value | High | Chicago, IL | 2026-10-22 | |
| 29,561 | $5.7M | 0.0% | Growth | Low | Seoul, Malaysia | 2026-11-03 | |
| 28,895 | $5.6M | 1.5% | Growth | Very High | New York, NY | 2026-11-05 | |
| 28,818 | $5.6M | 0.0% | Core | Medium | Rotterdam, Philippines | 2026-10-20 | |
| 28,406 | $5.5M | 0.0% | Index | Very Low | Tokyo, Mexico | 2026-11-05 | |
| 26,248 | $5.1M | 0.0% | Growth | Medium | Naperville, IL | 2026-11-02 | |
| 24,943 | $4.8M | 0.0% | Core | Low | Great Falls, MT | 2026-10-28 | |
| 22,539 | $4.4M | 0.1% | Core | Low | Wayne, PA | 2026-11-02 | |
| 21,800 | $4.2M | 0.0% | Core | Medium | Columbus, OH | 2026-10-30 | |
| 18,603 | $3.6M | 0.0% | Core | Low | Trenton, NJ | 2026-11-05 | |
| 18,550 | $3.6M | 0.1% | Growth | Low | Bethesda, MD | 2026-10-29 | |
| 16,190 | $3.1M | 0.0% | Index | Very Low | Phoenix, AZ | 2026-11-03 | |
| 15,000 | $2.9M | 0.0% | Agg Growth | Very High | Hong Kong, South Korea | 2026-10-28 | |
| 14,092 | $2.7M | 0.0% | Core | Very High | Chicago, IL | 2026-11-04 | |
| 12,141 | $2.3M | 0.2% | Core | Medium | Galveston, TX | 2026-10-06 | |
| 12,102 | $2.3M | 0.1% | Growth | Medium | Shanghai, France | 2026-10-28 | |
| 11,758 | $2.3M | 0.0% | Growth | Medium | Oklahoma City, OK | 2026-10-28 | |
| 10,615 | $2.1M | 0.0% | Growth | Low | Bethesda, MD | 2026-10-29 | |
| 9,181 | $1.8K | 0.0% | Value | Very High | Castle Rock, CO | 2026-11-04 | |
| 8,449 | $1.6M | 0.0% | Index | Low | Minneapolis, MN | 2026-11-05 | |
| 8,068 | $1.6M | 0.0% | GARP | Very High | Chicago, IL | 2026-11-05 | |
| 8,064 | $1.6M | 0.1% | Growth | Medium | New York, NY | 2026-10-16 | |
| 7,452 | $1.4M | 0.0% | Index | Low | Rockford, IL | 2026-10-28 | |
| 7,238 | $1.4M | 0.0% | Core | Medium | Richmond, VA | 2026-10-28 | |
| 6,240 | $1.2M | 0.0% | Index | Very Low | Philadelphia, PA | 2026-11-03 | |
| 6,143 | $1.2M | 0.0% | Growth | High | Woodland Hills, CA | 2026-10-16 | |
| 6,000 | $1.2M | 0.1% | GARP | Very High | Singapore, Turkey | 2026-11-04 | |
| 5,539 | $1.1M | 0.0% | Growth | Medium | Stockholm, Sweden | 2026-10-22 | |
| 5,514 | $1.1M | 0.2% | Core | Medium | Baton Rouge, LA | 2026-10-19 | |
| 5,425 | $1.0M | 0.0% | Core | Low | New York, NY | 2026-11-03 | |
| 5,187 | $1.0M | 0.0% | Index | Low | Tampa, FL | 2026-11-05 | |
| 5,100 | $985.5K | 0.7% | Momentum | Medium | Forest, VA | 2026-10-28 | |
| 5,056 | $977.0K | 0.0% | Growth | Low | Paris Cedex 008, India | 2026-10-21 | |
| 5,019 | $969.9K | 0.7% | Growth | Low | Niwot, CO | 2026-10-08 | |
| 4,772 | $725.6K | 0.0% | Core | Low | Plymouth, MN | 2026-10-13 | |
| 4,655 | $899.5K | 0.1% | Core | Medium | Birmingham, AL | 2026-10-26 | |
| 4,487 | $861 | 0.0% | Core | Low | Frankfurt, Hong Kong | 2026-10-27 | |
| 4,318 | $834.4K | 0.0% | GARP | High | Meridian, ID | 2026-10-22 | |
| 4,262 | $823.6K | 0.0% | Core | Low | Zurich, Switzerland | 2026-11-03 | |
| 4,207 | $813.0K | 0.0% | Core | Medium | Toronto Ontario, Australia | 2026-11-02 | |
| 3,781 | $730.6K | 0.0% | Core | Low | Carlsbad, CA | 2026-10-21 | |
| 3,755 | $725.6K | 0.2% | Growth | Low | Atlanta, GA | 2026-10-08 | |
| 3,375 | $652.2K | 0.1% | Momentum | High | Montreal, Austria | 2026-10-15 | |
| 3,078 | $594.8K | 0.0% | Core | Low | Brooklyn, OH | 2026-11-04 | |
| 3,000 | $579.7K | 0.1% | Value | Medium | Chicago, IL | 2026-11-02 | |
| 2,594 | $374.8K | 0.0% | Growth | Low | Sandy, UT | 2026-10-20 | |
| 2,594 | $374.8K | 0.0% | Growth | Medium | Sandy, UT | 2026-10-20 | |
| 2,454 | $474.2K | 0.0% | Growth | Medium | Tampa, FL | 2026-10-16 | |
| 2,332 | $450.6K | 0.1% | ETF | Low | Santa Monica, CA | 2026-11-03 | |
| 2,242 | $433.2K | 0.0% | Value | High | Cheyenne, WY | 2026-10-28 | |
| 2,227 | $430.3K | 0.0% | ETF | Medium | Urbandale, IA | 2026-10-29 | |
| 2,187 | $422.6K | 0.0% | GARP | Medium | Charlotte, NC | 2026-10-22 | |
| 2,165 | $418.4K | 0.1% | Growth | Low | Pittsburgh, PA | 2026-10-28 | |
| 2,128 | $411 | 0.0% | Core | Low | Goshen, IN | 2026-11-03 | |
| 2,121 | $410 | 0.0% | Core | Medium | Brussels, Czech Republic | 2026-10-22 | |
| 2,008 | $388.0K | 0.0% | Value | Very High | Greenwich, CT | 2026-11-02 | |
| 1,987 | $300.6K | 0.0% | Core | Medium | Wesley Chapel, FL | 2026-10-20 | |
| 1,924 | $371.8K | 0.0% | Index | Low | New York, NY | 2026-10-29 | |
| 1,868 | $287.3K | 0.0% | ETF | Medium | New York, NY | 2026-11-03 | |
| 1,862 | $359.8K | 0.0% | GARP | Low | Toronto, South Africa | 2026-11-05 | |
| 1,800 | $347.8K | 0.1% | Momentum | Low | Easton, MA | 2026-10-20 | |
| 1,773 | $342.6K | 1.3% | Growth | Low | Sacramento, CA | 2026-11-03 | |
| 1,771 | $342.2K | 0.0% | Index | Very Low | St. Louis, MO | 2026-10-20 | |
| 1,739 | $336.0K | 0.0% | Index | Very Low | Atlanta, GA | 2026-10-23 | |
| 1,694 | $327.3K | 0.0% | Index | Low | New York, NY | 2026-11-05 | |
| 1,685 | $326 | 0.0% | Core | Very Low | New York, NY | 2026-10-23 | |
| 1,586 | $306.5K | 0.1% | Growth | Medium | Schaumburg, IL | 2026-10-14 | |
| 1,562 | $301.8K | 0.0% | Core | Low | New York, NY | 2026-10-20 | |
| 1,541 | $297.7K | 0.0% | Core | Low | New York, NY | 2026-11-05 | |
| 1,425 | $275.4K | 0.0% | ETF | Low | Waltham, MA | 2026-11-02 | |
| 1,425 | $275.4K | 0.0% | Agg Growth | Low | Tokyo, Mexico | 2026-10-22 | |
| 1,404 | $271.3K | 0.0% | Core | Low | Wayne, PA | 2026-10-23 | |
| 1,372 | $264.4K | 0.0% | Core | High | Denver, CO | 2026-11-05 | |
| 1,368 | $264.3K | 0.0% | Growth | Medium | Falls Church, VA | 2026-11-04 | |
| 1,343 | $259.5K | 0.0% | ETF | Low | Overland Park, KS | 2026-10-20 | |
| 1,338 | $258.4K | 0.0% | Index | Very Low | Cincinnati, OH | 2026-11-05 | |
| 1,327 | $256.4K | 0.0% | Index | Very Low | Foster City, CA | 2026-10-08 | |
| 1,259 | $243.3K | 0.0% | ETF | Low | Sonoma, CA | 2026-10-13 | |
| 1,196 | $231.1K | 0.0% | Core | Very Low | Seattle, WA | 2026-11-03 | |
| 1,177 | $227.4K | 0.0% | Growth | Medium | Provo, UT | 2026-10-20 | |
| 1,128 | $218.0K | 0.1% | Value | Medium | Greenwich, CT | 2026-10-13 | |
| 1,055 | $203.9K | 0.0% | Agg Growth | Medium | Guangzhou, France | 2026-10-26 | |
| 719 | $138.9K | 0.0% | Growth | Low | St Louis, MO | 2026-11-05 | |
| 700 | $135.3K | 0.0% | Core | Low | Wilmington, DE | 2026-10-23 | |
| 597 | $115.4K | 0.0% | Growth | Very Low | Beverly Hills, CA | 2026-10-27 | |
| 548 | $105.9K | 0.0% | Index | Low | Atlanta, GA | 2026-10-23 | |
| 502 | $97.0K | 0.0% | Growth | Medium | Boston, MA | 2026-10-19 | |
| 497 | $96.0K | 0.0% | Agg Growth | High | Tokyo, Mexico | 2026-11-02 | |
| 497 | $96.0K | 0.1% | Core | Low | Calabasas, CA | 2026-10-19 | |
| 486 | $94.0K | 0.0% | Index | Low | San Francisco, CA | 2026-10-08 | |
| 382 | $73.8K | 0.0% | Core | Medium | Birmingham, AL | 2026-11-04 | |
| 322 | $62.2K | 0.0% | ETF | Low | Atlanta, GA | 2026-10-13 | |
| 283 | $54.7K | 0.0% | GARP | Low | Phoenix, AZ | 2026-10-02 | |
| 273 | $52.8K | 0.0% | Value | Medium | Rancho Santa Fe, CA | 2026-10-14 | |
| 227 | $43.9K | 0.0% | Core | Very Low | Saint Louis, MO | 2026-10-27 | |
| 170 | $32.9K | 0.0% | ETF | Medium | Encinitas, CA | 2026-10-21 | |
| 131 | $25.3K | 0.0% | ETF | Low | New York, NY | 2026-11-03 | |
| 128 | $24.7K | 0.0% | Value | High | Royal Exchange, China | 2026-11-05 | |
| 123 | $23.8K | 0.0% | GARP | Low | Mansfield, OH | 2026-10-27 | |
| 119 | $23.0K | 0.0% | Index | Low | San Francisco, CA | 2026-11-03 | |
| 110 | $21.3K | 0.0% | Growth | Low | Lutherville, MD | 2026-10-13 | |
| 100 | $19.3K | 0.0% | Agg Growth | Low | Coatesville, PA | 2026-10-29 | |
| 97 | $18.7K | 0.0% | ETF | Low | Dallas, TX | 2026-11-03 | |
| 82 | $16 | 0.0% | Value | High | London, United Kingdom | 2026-10-30 | |
| 80 | $15 | 0.0% | ETF | Very Low | Honolulu, HI | 2026-10-29 | |
| 74 | $14.3K | 0.0% | Core | High | Zurich, Switzerland | 2026-10-29 | |
| 70 | $13.5K | 0.0% | ETF | Medium | San Diego, CA | 2026-10-29 | |
| 65 | $12.6K | 0.0% | Agg Growth | Very Low | Northbrook, IL | 2026-10-21 | |
| 58 | $11.2K | 0.0% | Core | Low | Springfield, MA | 2026-10-05 | |
| 52 | $10.0K | 0.0% | ETF | Low | Princeton, NJ | 2026-10-19 | |
| 50 | $9.7K | 0.0% | Core | Low | Baltimore, MD | 2026-10-27 | |
| 40 | $7.7K | 0.0% | Core | Low | Spokane, WA | 2026-10-14 | |
| 36 | $7.0K | 0.0% | ETF | Very Low | Sylvania, OH | 2026-10-26 | |
| 34 | $6.6K | 0.0% | Core | Medium | Orchard Park, NY | 2026-11-05 | |
| 33 | $6 | 0.0% | ETF | Low | The Woodlands, TX | 2026-11-04 | |
| 30 | $5.8K | 0.0% | Growth | Medium | Mclean, VA | 2026-10-30 | |
| 29 | $5.6K | 0.0% | ETF | Medium | Akron, OH | 2026-10-13 | |
| 28 | $5.4K | 0.0% | ETF | Low | Brentwood, TN | 2026-10-15 | |
| 28 | $5.4K | 0.0% | ETF | Medium | Midvale, UT | 2026-10-20 | |
| 23 | $4.4K | 0.0% | ETF | Low | Fort Lauderdale, FL | 2026-10-30 | |
| 22 | $4.3K | 0.0% | ETF | Very Low | Orinda, CA | 2026-10-29 | |
| 20 | $3.9K | 0.0% | ETF | Medium | Columbia, MO | 2026-10-20 | |
| 20 | $3.9K | 0.0% | ETF | Very Low | Gap, PA | 2026-11-04 | |
| 20 | $3.9K | 0.0% | Core | Low | Irvine, CA | 2026-10-30 | |
| 19 | $3.7K | 0.0% | ETF | Low | New York, NY | 2026-10-28 | |
| 19 | $3.7K | 0.0% | ETF | Low | Concord, CA | 2026-10-21 | |
| 15 | $2.8K | 0.0% | Core | Low | Keene, NH | 2026-10-27 | |
| 10 | $1.9K | 0.0% | Growth | Low | Tampa, FL | 2026-10-16 | |
| 6 | $1.0K | 0.0% | ETF | Low | Herndon, VA | 2026-10-30 | |
| 5 | $966 | 0.0% | ETF | Very Low | Tulsa, OK | 2026-11-05 | |
| 3 | $579 | 0.0% | Agg Growth | Low | Dallas, TX | 2026-11-03 | |
| 2 | $386 | 0.0% | Deep Value | Very High | London, United Kingdom | 2026-11-03 | |
| 1 | $193 | 0.0% | Core | Low | Cleveland, OH | 2026-10-20 | |
| 1 | $194 | 0.0% | Core | Very Low | Denver, CO | 2026-10-15 |