开盘$241.28
昨收$243.93
当日区间$240.00 – $250.03
成交量1.00M
市值$36.71B
市盈率（TTM）107.5
股息率–
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98.1%+0.33 个百分点，较上季度
持仓机构数1,291+18 ，较上季度
内部人近期交易35次买入 / 15次卖出净买入
空头持仓比例3.72% 占流通股回补天数 4.4 · 截至 15 Oct 2026
卖空成交量占比19.9%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：+$36.61M（10个净流入日，10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44.4%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基本持稳于3.72%。
近期机构持仓变动
| 股东 | 类型 | 期间 | 持股变动 | 新持股比例 |
|---|---|---|---|---|
| Metzler Asset Management GmbH | Mutual Fund | 2026/Q3 | +391,378 | 0.3% |
| FMR | Mutual Fund | 2026/Q3 | +5,066,219 | 11.3% |
| Amundi Asset Management | Mutual Fund | 2026/Q3 | +762,665 | 1.1% |
| Pacer Advisors, Inc. | Mutual Fund | 2026/Q3 | +462,573 | 0.8% |
| PRIMECAP Management Company | Mutual Fund | 2026/Q3 | +396,999 | 10.3% |
| UBS Asset Management | Mutual Fund | 2026/Q3 | +384,300 | 1.5% |
| Strategic Advisers LLC | Mutual Fund | 2026/Q3 | +343,479 | 1.1% |
| Citadel Advisors LLC | Hedge Fund | 2026/Q3 | +280,263 | 0.3% |
| Perceptive Advisors LLC | VC/PE Fund | 2026/Q3 | +276,173 | 0.2% |
| Citigroup Inc. | Public Company | 2026/Q3 | +234,010 | 0.5% |
| Morgan Stanley | Public Company | 2026/Q3 | +204,724 | 0.7% |
| RBC Global Asset Management Inc. | Mutual Fund | 2026/Q3 | +201,086 | 0.2% |
| Voya Investment Management LLC | Mutual Fund | 2026/Q3 | +192,221 | 0.2% |
| State Street Global Advisors | Mutual Fund | 2026/Q3 | +176,405 | 5.0% |
| The Goldman Sachs Group, Inc. | Public Company | 2026/Q3 | +164,626 | 0.2% |
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 |
|---|---|---|---|---|---|---|
| 1 Oct 2026 | Sean Godbout | VP, Chief Accounting Officer & Global Corporate Controller | Derivative Exercise and Sale | -8 | $219.88 | 1,459 |
| 1 Oct 2026 | Sean Godbout | VP, Chief Accounting Officer & Global Corporate Controller | Derivative Exercise and Retained | +19 | – | 1,459 |
| 30 Sep 2026 | Sean Godbout | VP, Chief Accounting Officer & Global Corporate Controller | Other Derivative Acquisition | +985 | – | 985 |
| 31 Aug 2026 | Michael Parini | Chief Legal Officer | Other Derivative Acquisition | +7,405 | – | 7,405 |
| 3 Aug 2026 | Lloyd Minor | Independent Director | Intent to Sell (Form 144) | -593 | $200.96 | – |
| 3 Aug 2026 | Lloyd Minor | Independent Director | Open Market Disposition | -1,186 | $203.34 | 1,184 |
| 2 Aug 2026 | Lloyd Minor | Independent Director | Intent to Sell (Form 144) | -593 | $203.34 | – |
| 8 Jun 2026 | Stephen A. Sherwin | Independent Director | Other Acquisition | +1,505 | – | 1,505 |
| 8 Jun 2026 | William Hawkins | Independent Director | Other Acquisition | +1,505 | – | 1,505 |
| 8 Jun 2026 | Eric Rowinsky | Independent Director | Other Acquisition | +1,505 | – | 1,505 |
| 8 Jun 2026 | Maria Freire | Independent Chairperson | Other Acquisition | +2,005 | – | 2,005 |
| 8 Jun 2026 | Lloyd Minor | Independent Director | Other Acquisition | +1,505 | – | 1,505 |
| 8 Jun 2026 | Monish Patolawala | Independent Director | Other Acquisition | +1,505 | – | 1,505 |
| 8 Jun 2026 | Menelas Nicolas Pangalos | Independent Director | Other Acquisition | +1,505 | – | 1,505 |
| 8 Jun 2026 | Menelas Nicolas Pangalos | Independent Director | Derivative Exercise and Retained | +2,370 | – | 2,370 |
| 8 Jun 2026 | Jesus Mantas | Independent Director | Other Acquisition | +1,505 | – | 1,505 |
| 8 Jun 2026 | Susan Langer | Independent Director | Other Acquisition | +1,505 | – | 1,505 |
| 30 Apr 2026 | Adam Keeney | Executive VP & Head of Corporate Development | Derivative Exercise and Sale | -455 | $187.06 | 6,365 |
| 30 Apr 2026 | Adam Keeney | Executive VP & Head of Corporate Development | Derivative Exercise and Retained | +484 | – | 6,365 |
| 31 Mar 2026 | Sean Godbout | VP, Chief Accounting Officer & Global Corporate Controller | Derivative Exercise and Sale | -54 | $183.78 | 1,342 |
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 | 5,500,386 | 3.7% | 4.4 |
| 30 Sep 2026 | 5,965,892 | 4.0% | 4.9 |
| 15 Sep 2026 | 5,817,797 | 3.9% | 7.6 |
| 31 Aug 2026 | 5,726,631 | 3.9% | 8.7 |
| 14 Aug 2026 | 5,190,555 | 3.5% | 6.1 |
| 31 Jul 2026 | 5,453,901 | 3.7% | 4.7 |
暂无评论——快来第一个聊聊 BIIB。