股票 › AMPX
安普瑞斯科技 AMPX
美股市值排名 #3054
$8.72 +$1.20 (+15.96%)
休市 · Nov 7, 9:10 am ET · 最新盘后价 $8.66 -0.69%
开盘$7.85
昨收$7.52
当日区间$7.71 – $8.82
成交量6.10M
市值$1.27B
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74.4%-3.87 个百分点，较上季度
持仓机构数318+1 ，较上季度
内部人近期交易12次买入 / 38次卖出净卖出
空头持仓比例15.56% 占流通股回补天数 3.8 · 截至 15 Oct 2026
卖空成交量占比23.0%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：−$4.65M（7个净流入日，13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21.6%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16.90%降至15.56%。
近期机构持仓变动
| 股东 | 类型 | 期间 | 持股变动 | 新持股比例 |
|---|---|---|---|---|
| Jupiter Fund Management Plc | Mutual Fund | 2026/Q3 | +2,133,397 | 1.5% |
| BlackRock | Mutual Fund | 2026/Q3 | +2,109,481 | 7.8% |
| Morgan Stanley | Public Company | 2026/Q3 | +1,938,931 | 3.5% |
| UBS Asset Management | Mutual Fund | 2026/Q3 | +1,755,594 | 2.9% |
| LMR Partners LLP | Hedge Fund | 2026/Q3 | +1,750,850 | 1.2% |
| Healthcare of Ontario Pension Plan Trust Fund | Government Pension Fund | 2026/Q3 | +1,248,700 | 0.9% |
| Point72 Asset Management, L.P. | Hedge Fund | 2026/Q3 | +1,111,890 | 0.8% |
| Renaissance Technologies Corp. | Hedge Fund | 2026/Q3 | +1,049,400 | 1.0% |
| Nearwater Capital Markets, Limited | Private Company | 2026/Q3 | +1,034,700 | 0.7% |
| Susquehanna International Group, LLP | Private Company | 2026/Q3 | +1,011,099 | 0.8% |
| Shannon River Fund Management, LLC | Hedge Fund | 2026/Q3 | +838,887 | 0.6% |
| Two Sigma Investments, LP | Hedge Fund | 2026/Q3 | +812,555 | 3.0% |
| Vanguard Capital Management, LLC | Mutual Fund | 2026/Q3 | +771,219 | 4.5% |
| Geode Capital Management, LLC | Mutual Fund | 2026/Q3 | +706,125 | 2.4% |
| IMC Trading B.V. | Private Company | 2026/Q3 | +671,435 | 0.5% |
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 |
|---|---|---|---|---|---|---|
| 24 Aug 2026 | Thomas Stepien | Chief Executive Officer | Other Acquisition | +346 | – | 47,260 |
| 24 Aug 2026 | Thomas Stepien | Chief Executive Officer | Other Disposition | -15,346 | – | 47,260 |
| 23 Aug 2026 | Thomas Stepien | Chief Executive Officer | Intent to Sell (Form 144) | -8,000 | $10.03 | – |
| 23 Aug 2026 | Thomas Stepien | Chief Executive Officer | Open Market Disposition | -31,529 | $10.34 | 47,260 |
| 20 Aug 2026 | Kang Sun | Executive Advisor & Director | Open Market Disposition | -62,101 | $10.34 | 363,115 |
| 20 Aug 2026 | Constantin Stefan | Chief Technology Officer | Open Market Disposition | -29,681 | $10.34 | 246,453 |
| 14 Jun 2026 | Donald Dixon | Independent Chairperson | Open Market Disposition | -85,000 | $17.17 | 792,178 |
| 11 Jun 2026 | Donald Dixon | Independent Chairperson | Other Acquisition | +10,423 | – | 10,423 |
| 11 Jun 2026 | Kathleen Bayless | Independent Director | Other Acquisition | +10,423 | – | 10,423 |
| 11 Jun 2026 | Livingston Satterthwaite | Member of Industry Advisory Council & Independent Director | Other Acquisition | +10,423 | – | 199,102 |
| 11 Jun 2026 | Steven Chu | Independent Director | Other Acquisition | +10,423 | – | 10,423 |
| 8 Jun 2026 | Donald Dixon | Independent Chairperson | Open Market Disposition | -40,000 | $19.13 | 832,734 |
| 7 Jun 2026 | Donald Dixon | Independent Chairperson | Intent to Sell (Form 144) | -125,000 | $18.85 | – |
| 3 Jun 2026 | Thomas Stepien | Chief Executive Officer | Other Acquisition | +36,914 | – | 46,914 |
| 3 Jun 2026 | Thomas Stepien | Chief Executive Officer | Other Disposition | -67,298 | – | 46,914 |
| 3 Jun 2026 | Thomas Stepien | Chief Executive Officer | Open Market Disposition | -2,000 | $20.97 | 46,914 |
| 26 May 2026 | Kang Sun | Executive Advisor & Director | Open Market Disposition | -356 | $17.19 | 298,242 |
| 26 May 2026 | Thomas Stepien | Chief Executive Officer | Open Market Disposition | -4,375 | $17.19 | 79,298 |
| 26 May 2026 | Constantin Stefan | Chief Technology Officer | Open Market Disposition | -3,208 | $17.19 | 217,002 |
| 25 May 2026 | Donald Dixon | Independent Chairperson | Open Market Disposition | -17,895 | $17.90 | 872,734 |
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 | 22,724,816 | 15.6% | 3.8 |
| 30 Sep 2026 | 22,815,859 | 15.6% | 3.8 |
| 15 Sep 2026 | 22,685,478 | 15.5% | 5.1 |
| 31 Aug 2026 | 23,159,125 | 15.9% | 5.3 |
| 14 Aug 2026 | 22,146,891 | 15.2% | 3.1 |
| 31 Jul 2026 | 23,928,102 | 16.9% | 4.2 |
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