安毕科微电子 AMBQ
$38.56 +$3.34 (+9.48%)
休市 · Nov 7, 9:10 am ET · 最新盘后价 $38.56 0.00%
开盘$38.34
昨收$35.22
当日区间$36.58 – $38.90
成交量432.7K
市值$932.56M
市盈率（TTM）–
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88.1%+0.78 个百分点，较上季度
持仓机构数220+6 ，较上季度
内部人近期交易20次买入 / 30次卖出净卖出
空头持仓比例11.00% 占流通股回补天数 5.7 · 截至 15 Oct 2026
卖空成交量占比17.0%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：−$2.32M（6个净流入日，14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27.8%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7.39%升至11.00%。
近期机构持仓变动
| 股东 | 类型 | 期间 | 持股变动 | 新持股比例 |
|---|---|---|---|---|
| BlackRock | Mutual Fund | 2026/Q3 | +247,584 | 6.7% |
| D. E. Shaw & Co., L.P. | Hedge Fund | 2026/Q3 | +983,916 | 4.1% |
| Two Sigma Investments, LP | Hedge Fund | 2026/Q3 | +614,992 | 2.7% |
| State Street Global Advisors | Mutual Fund | 2026/Q3 | +601,752 | 3.6% |
| Emerald Advisers, LLC | Mutual Fund | 2026/Q3 | +402,795 | 1.7% |
| BlackRock | Mutual Fund | 2026/Q3 | +367,462 | 5.7% |
| Jane Street Group, LLC | Private Company | 2026/Q3 | +294,802 | 1.2% |
| Neuberger Berman Investment Advisers LLC | Mutual Fund | 2026/Q3 | +272,126 | 1.1% |
| Hudson River Trading LLC | Private Company | 2026/Q3 | +225,639 | 0.9% |
| Voloridge Investment Management, LLC | Hedge Fund | 2026/Q3 | +223,276 | 0.9% |
| Cooper Creek Partners Management LLC | Hedge Fund | 2026/Q3 | +220,000 | 0.9% |
| Walleye Capital LLC | Hedge Fund | 2026/Q3 | +203,099 | 0.9% |
| BNP Paribas Financial Markets SNC | Private Company | 2026/Q3 | +200,292 | 0.8% |
| Renaissance Technologies Corp. | Hedge Fund | 2026/Q3 | +172,156 | 0.9% |
| Wellington Management Group | Mutual Fund | 2026/Q3 | +168,139 | 0.7% |
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 |
|---|---|---|---|---|---|---|
| 14 Oct 2026 | Fumihide Esaka | Chief Executive Officer | Derivative Exercise and Sale | -5,000 | $51.85 | 163,354 |
| 14 Oct 2026 | Scott Hanson | Co-Founder, CTO, Secretary & Director | Derivative Exercise and Sale | -7,000 | $51.86 | 69,374 |
| 13 Oct 2026 | Sean Chen | President | Derivative Exercise and Sale | -15,000 | $54.27 | 106,268 |
| 4 Oct 2026 | Sean Chen | President | Automatic Disposition | -8,205 | $69.51 | 106,268 |
| 4 Oct 2026 | Sean Chen | President | Automatic Disposition | -8,105 | $68.08 | 100 |
| 4 Oct 2026 | Sean Chen | President | Automatic Disposition | -100 | $69.51 | 106,268 |
| 4 Oct 2026 | Sean Chen | President | Intent to Sell (Form 144) | -53,205 | $68.18 | – |
| 1 Oct 2026 | Fumihide Esaka | Chief Executive Officer | Open Market Disposition | -16,560 | $71.86 | 163,354 |
| 1 Oct 2026 | Fumihide Esaka | Chief Executive Officer | Intent to Sell (Form 144) | -16,560 | $69.15 | – |
| 1 Oct 2026 | Jeffrey Winzeler | Chief Financial Officer | Open Market Disposition | -5,455 | $71.86 | 100,844 |
| 1 Oct 2026 | Scott Hanson | Co-Founder, CTO, Secretary & Director | Open Market Disposition | -8,680 | $71.86 | 69,374 |
| 1 Oct 2026 | Sean Chen | President | Open Market Disposition | -5,802 | $71.86 | 100 |
| 14 Sep 2026 | Scott Hanson | Co-Founder, CTO, Secretary & Director | Derivative Exercise and Sale | -7,000 | $61.00 | 57,099 |
| 14 Sep 2026 | Fumihide Esaka | Chief Executive Officer | Derivative Exercise and Sale | -63,500 | $63.86 | 139,937 |
| 13 Sep 2026 | Sean Chen | President | Derivative Exercise and Sale | -15,000 | $60.83 | 120,275 |
| 10 Sep 2026 | Ker Zhang | Independent Director | Open Market Disposition | -10,000 | $63.95 | 2,016 |
| 10 Sep 2026 | Fumihide Esaka | Chief Executive Officer | Intent to Sell (Form 144) | -50,000 | $63.36 | – |
| 3 Sep 2026 | Ker Zhang | Independent Director | Derivative Exercise and Sale | -185 | $56.92 | 12,016 |
| 3 Sep 2026 | Ker Zhang | Independent Director | Derivative Exercise and Retained | +1,600 | $5.88 | 12,016 |
| 3 Sep 2026 | Sean Chen | President | Derivative Exercise and Sale | -15,000 | $57.68 | 120,275 |
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 | 2,661,312 | 11.0% | 5.7 |
| 30 Sep 2026 | 2,441,751 | 10.1% | 3.6 |
| 15 Sep 2026 | 2,110,814 | 8.7% | 4.7 |
| 31 Aug 2026 | 1,809,791 | 7.5% | 4.3 |
| 14 Aug 2026 | 1,723,765 | 7.1% | 4.0 |
| 31 Jul 2026 | 1,763,291 | 7.4% | 3.1 |
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