Acadian Asset 管理 AAMI
$90.96 −$0.83 (-0.90%)
休市 · Nov 7, 12:10 am ET · 最新盘后价 $90.96 0.00%
开盘$91.64
昨收$91.79
当日区间$89.83 – $94.59
成交量757.5K
市值$3.21B
市盈率（TTM）26.8
股息率0.34%
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104.1%-0.05 个百分点，较上季度
持仓机构数371+5 ，较上季度
内部人近期交易32次买入 / 18次卖出净买入
空头持仓比例5.08% 占流通股回补天数 4.3 · 截至 15 Oct 2026
卖空成交量占比18.3%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：−$1.92M（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40.9%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2.70%升至5.08%。
近期机构持仓变动
| 股东 | 类型 | 期间 | 持股变动 | 新持股比例 |
|---|---|---|---|---|
| Nuveen Asset Management LLC | Insurance Company | 2026/Q3 | +71,240 | 0.7% |
| Invesco Ltd. | Mutual Fund | 2026/Q3 | +847,870 | 2.4% |
| Driehaus Capital Management LLC | Mutual Fund | 2026/Q3 | +788,901 | 2.2% |
| Avantyr Capital Partners, LP | Hedge Fund | 2026/Q3 | +767,793 | 2.2% |
| Amundi Asset Management | Mutual Fund | 2026/Q3 | +258,926 | 0.9% |
| Healthcare of Ontario Pension Plan Trust Fund | Government Pension Fund | 2026/Q3 | +227,782 | 0.7% |
| Geode Capital Management, LLC | Mutual Fund | 2026/Q3 | +221,902 | 2.7% |
| Woodline Partners LP | Hedge Fund | 2026/Q3 | +181,820 | 2.5% |
| Azora Capital LP | Hedge Fund | 2026/Q3 | +166,656 | 1.4% |
| Allspring Global Investments, LLC | Mutual Fund | 2026/Q3 | +134,384 | 1.6% |
| Invesco Capital Management LLC | Mutual Fund | 2026/Q3 | +115,959 | 1.4% |
| AQR Capital Management | Hedge Fund | 2026/Q3 | +94,700 | 0.7% |
| Morgan Stanley | Public Company | 2026/Q3 | +91,476 | 1.2% |
| Ghisallo Capital Management LLC | Hedge Fund | 2026/Q3 | +85,379 | 0.2% |
| The Informed Momentum Company LLC | Mutual Fund | 2026/Q3 | +82,424 | 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 |
|---|---|---|---|---|---|---|
| 3 Aug 2026 | Christina Wiater | Senior Vice President and Chief Accounting Officer | Intent to Sell (Form 144) | -244 | $92.36 | – |
| 3 Aug 2026 | Christina Wiater | Senior Vice President and Chief Accounting Officer | Open Market Disposition | -25,614 | $92.36 | – |
| 2 Aug 2026 | Christina Wiater | Senior Vice President and Chief Accounting Officer | Intent to Sell (Form 144) | -25,370 | $87.21 | – |
| 16 Jun 2026 | Paulson & Co. Inc. | Private Disposition | -1,900,000 | $77.25 | 5,843,282 | |
| 14 Jun 2026 | Barbara Trebbi | Independent Director | Other Acquisition | +10,260 | – | 39,057 |
| 14 Jun 2026 | Barbara Trebbi | Independent Director | Other Disposition | -10,260 | – | 39,057 |
| 11 Jun 2026 | John Paulson | Independent Chairperson | Other Derivative Acquisition | +2,253 | – | 2,253 |
| 11 Jun 2026 | Robert Chersi | Lead Independent Director | Other Derivative Acquisition | +1,288 | – | 1,288 |
| 11 Jun 2026 | Barbara Trebbi | Independent Director | Other Derivative Acquisition | +1,288 | – | 1,288 |
| 13 May 2026 | John Paulson | Independent Chairperson | Derivative Exercise and Retained | +5,750 | – | 29,510 |
| 13 May 2026 | Robert Chersi | Lead Independent Director | Derivative Exercise and Retained | +3,286 | – | 40,670 |
| 13 May 2026 | Barbara Trebbi | Independent Director | Derivative Exercise and Retained | +3,286 | – | 39,057 |
| 3 May 2026 | Richard Hart | Chief Legal Officer | Open Market Disposition | -100,000 | $67.73 | 73,863 |
| 14 Feb 2026 | Richard Hart | Chief Legal Officer | Derivative Exercise and Sale | -7,400 | $51.85 | 173,863 |
| 14 Feb 2026 | Richard Hart | Chief Legal Officer | Derivative Exercise and Retained | +7,905 | – | 173,863 |
| 14 Feb 2026 | Christina Wiater | Senior Vice President and Chief Accounting Officer | Derivative Exercise and Sale | -2,697 | $51.85 | 25,614 |
| 14 Feb 2026 | Christina Wiater | Senior Vice President and Chief Accounting Officer | Derivative Exercise and Retained | +6,489 | – | 25,614 |
| 12 Feb 2026 | Kelly Ann Young | Chief Executive Officer | Other Derivative Acquisition | +48,748 | – | 48,748 |
| 12 Feb 2026 | Richard Hart | Chief Legal Officer | Other Derivative Acquisition | +21,602 | – | 53,650 |
| 12 Feb 2026 | Christina Wiater | Senior Vice President and Chief Accounting Officer | Other Derivative Acquisition | +5,407 | – | 26,432 |
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 | 1,802,209 | 5.1% | 4.3 |
| 30 Sep 2026 | 1,693,662 | 4.8% | 3.8 |
| 15 Sep 2026 | 1,071,734 | 3.0% | 2.0 |
| 31 Aug 2026 | 848,026 | 2.4% | 2.6 |
| 14 Aug 2026 | 887,656 | 2.5% | 2.3 |
| 31 Jul 2026 | 960,244 | 2.7% | 2.3 |
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