开盘$111.08
昨收$113.60
当日区间$109.81 – $111.81
成交量8.35M
市值$190.39B
市盈率（TTM）40.9
股息率2.26%
股权结构与仓位
谁在持有、谁在做空，以及大资金的流向
机构持股比例81.1%+0.17 个百分点，较上季度
持仓机构数3,422+40 ，较上季度
内部人近期交易36次买入 / 12次卖出净买入
空头持仓比例1.00% 占流通股回补天数 1.8 · 截至 15 Oct 2026
卖空成交量占比18.8%近5日成交量平均占比
卖空成交量占当日成交量比例
大单净流入，近20个交易日
大单买入减卖出的净额（美元）。该窗口期内：−$149.95M（8个净流入日，12个净流出日）。
按单量净流入，近20个交易日
超大单/大单近似机构级别交易；中单/小单近似散户级别交易。各档买入减卖出净额，按窗口期累计。
已披露的前五大股东合计持有28.3%的流通股。
最大股东
按投资者类型
过去6次双周报告中（31 Jul 2026至15 Oct 2026），空头持仓占流通股比例已从1.31%降至1.00%。
近期机构持仓变动
| 股东 | 类型 | 期间 | 持股变动 | 新持股比例 |
|---|---|---|---|---|
| Assenagon Asset Management S.A. | Mutual Fund | 2026/Q3 | +1,968,916 | 0.3% |
| Charles Schwab Investment Management | Mutual Fund | 2026/Q3 | +14,174,487 | 3.5% |
| BlackRock | Mutual Fund | 2026/Q3 | +6,876,018 | 8.8% |
| Citadel Advisors LLC | Hedge Fund | 2026/Q3 | +6,681,381 | 0.5% |
| Arrowstreet Capital, Limited Partnership | Mutual Fund | 2026/Q3 | +5,374,956 | 0.6% |
| SG Americas Securities, LLC | Private Company | 2026/Q3 | +4,736,848 | 0.4% |
| Barrow, Hanley, Mewhinney & Strauss, LLC | Mutual Fund | 2026/Q3 | +3,546,275 | 0.2% |
| Marshall Wace LLP | Hedge Fund | 2026/Q3 | +3,531,500 | 0.3% |
| Millennium Management LLC | Hedge Fund | 2026/Q3 | +3,039,714 | 0.3% |
| T. Rowe Price Group, Inc. | Mutual Fund | 2026/Q3 | +3,019,067 | 1.3% |
| Deutsche Asset & Wealth Management | Mutual Fund | 2026/Q3 | +2,664,096 | 0.9% |
| AQR Capital Management | Hedge Fund | 2026/Q3 | +2,612,790 | 0.2% |
| Flossbach von Storch SE | Mutual Fund | 2026/Q3 | +2,092,385 | 0.6% |
| The Goldman Sachs Group, Inc. | Public Company | 2026/Q3 | +2,006,794 | 0.4% |
| Strategic Advisers LLC | Mutual Fund | 2026/Q3 | +1,883,195 | 0.3% |
按报告期列出的机构买卖动态，变动幅度从大到小排列。
内部人交易
| 日期 | 内部人 | 职位 | 交易类型 | 股数 | 价格 | 交易后持股 |
|---|---|---|---|---|---|---|
| 29 Sep 2026 | John Stratton | Independent Director | Other Derivative Acquisition | +397 | – | 14,499 |
| 29 Sep 2026 | Kevin Conroy | Director | Other Derivative Acquisition | +318 | – | 551 |
| 29 Sep 2026 | Michael Roman | Independent Director | Other Derivative Acquisition | +381 | – | 7,166 |
| 29 Sep 2026 | Patricia Gonzalez | Independent Director | Other Derivative Acquisition | +333 | – | 6,331 |
| 29 Sep 2026 | Nita Ahuja | Independent Director | Other Derivative Acquisition | +318 | – | 771 |
| 22 Sep 2026 | Kevin Conroy | Director | Sale to Issuer | -52,507 | $103.99 | 81,230 |
| 1 Sep 2026 | John McCoy | VP of Finance & Controller | Open Market Disposition | -27 | $109.54 | 24,608 |
| 31 Aug 2026 | John McCoy | VP of Finance & Controller | Sale to Issuer | -52 | $110.36 | 24,608 |
| 31 Aug 2026 | Philip Boudreau | CFO & Executive VP of Finance | Sale to Issuer | -388 | $110.36 | 82,316 |
| 24 Aug 2026 | Robert Ford | Executive Chairperson | Derivative Exercise and Sale | -398,832 | $116.19 | 522,664 |
| 11 Aug 2026 | Louis Morrone | Executive Vice President of Core Diagnostics | Disposition Under Employee Benef | -12 | $107.99 | 70,724 |
| 10 Aug 2026 | Louis Morrone | Executive Vice President of Core Diagnostics | Open Market Disposition | -5,850 | $109.83 | 70,724 |
| 29 Jun 2026 | John Stratton | Independent Director | Other Derivative Acquisition | +432 | – | 14,022 |
| 29 Jun 2026 | Kevin Conroy | Director | Other Derivative Acquisition | +231 | – | 231 |
| 29 Jun 2026 | Michael Roman | Independent Director | Other Derivative Acquisition | +416 | – | 6,746 |
| 29 Jun 2026 | Patricia Gonzalez | Independent Director | Other Derivative Acquisition | +363 | – | 5,963 |
| 29 Jun 2026 | Louis Morrone | Executive Vice President of Core Diagnostics | Sale to Issuer | -269 | $92.71 | 76,586 |
| 29 Jun 2026 | Nita Ahuja | Independent Director | Other Derivative Acquisition | +347 | – | 450 |
| 26 Jun 2026 | Elizabeth Cushman | General Counsel | Sale to Issuer | -560 | $94.12 | 38,013 |
| 14 May 2026 | Robert Alpern | Former Independent Director | Intent to Sell (Form 144) | -7,587 | $85.25 | – |
数据来自Form 4/Form 144申报文件。负数为减持（出售、赠予或代扣税款股份），正数为增持。
空头持仓（按报告期）
| 报告日期 | 空头股数 | 占流通股比例 | 回补天数 |
|---|---|---|---|
| 15 Oct 2026 | 17,386,736 | 1.0% | 1.8 |
| 30 Sep 2026 | 13,634,256 | 0.8% | 1.5 |
| 15 Sep 2026 | 19,911,199 | 1.2% | 2.6 |
| 31 Aug 2026 | 22,129,750 | 1.3% | 2.7 |
| 14 Aug 2026 | 20,375,133 | 1.2% | 2.9 |
| 31 Jul 2026 | 22,624,184 | 1.3% | 1.7 |
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