梅萨实验室 MLAB
$128.25 +$8.95 (+7.50%)
休市 · Nov 6, 8:20 pm ET · 最新盘后价 $128.25 0.00%
开盘$119.47
昨收$119.30
当日区间$119.47 – $128.60
成交量109.7K
市值$717.67M
市盈率（TTM）150.9
股息率0.50%
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95.9%+3.94 个百分点，较上季度
持仓机构数208+0 ，较上季度
内部人近期交易27次买入 / 13次卖出净买入
空头持仓比例6.98% 占流通股回补天数 3.8 · 截至 15 Oct 2026
卖空成交量占比18.5%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：+$236.0K（9个净流入日，11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33.1%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5.79%升至6.98%。
近期机构持仓变动
| 股东 | 类型 | 期间 | 持股变动 | 新持股比例 |
|---|---|---|---|---|
| Wasatch Advisors LP | Mutual Fund | 2026/Q3 | +271,461 | 6.9% |
| Columbia Management Investment Advisers, LLC | Mutual Fund | 2026/Q3 | +17,324 | 0.3% |
| William Blair Investment Management, LLC | Mutual Fund | 2026/Q3 | +19,491 | 0.3% |
| Jacobs Levy Equity Management Inc | Mutual Fund | 2026/Q3 | +86,421 | 2.3% |
| FMR | Mutual Fund | 2026/Q3 | +82,287 | 1.6% |
| Jane Street Group, LLC | Private Company | 2026/Q3 | +71,580 | 1.3% |
| Long Path Partners, LP | Hedge Fund | 2026/Q3 | +71,543 | 8.5% |
| Wasatch Advisors LP | Mutual Fund | 2026/Q3 | +64,435 | 2.1% |
| BlackRock | Mutual Fund | 2026/Q3 | +46,701 | 7.9% |
| Qube Research & Technologies Ltd | Mutual Fund | 2026/Q3 | +37,402 | 0.7% |
| AQR Capital Management | Hedge Fund | 2026/Q3 | +33,115 | 3.6% |
| Citadel Advisors LLC | Hedge Fund | 2026/Q3 | +27,467 | 0.6% |
| D. E. Shaw & Co., L.P. | Hedge Fund | 2026/Q3 | +27,197 | 1.5% |
| Raymond James Financial, Inc. | Public Company | 2026/Q3 | +27,026 | 2.7% |
| Dimensional Fund Advisors | Mutual Fund | 2026/Q3 | +23,765 | 2.7% |
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 |
|---|---|---|---|---|---|---|
| 8 Sep 2026 | Shiraz Ladiwala | Lead Independent Director | Other Derivative Acquisition | +2,510 | – | 2,510 |
| 8 Sep 2026 | John Sullivan | Chairperson | Other Derivative Acquisition | +1,774 | – | 1,774 |
| 8 Sep 2026 | R. Tripeny | Independent Director | Other Derivative Acquisition | +1,774 | – | 1,774 |
| 8 Sep 2026 | Mark Capone | Independent Director | Other Derivative Acquisition | +2,423 | – | 2,423 |
| 8 Sep 2026 | Shannon Hall | Independent Director | Other Derivative Acquisition | +1,774 | – | 1,774 |
| 26 Aug 2026 | Gary Owens | Former Chief Executive Officer | Intent to Sell (Form 144) | -20,358 | $127.75 | – |
| 20 Aug 2026 | Gary Owens | Former Chief Executive Officer | Intent to Sell (Form 144) | -20,000 | $122.50 | – |
| 14 Aug 2026 | Shiraz Ladiwala | Lead Independent Director | Derivative Exercise and Retained | +3,810 | – | 12,333 |
| 14 Aug 2026 | John Sullivan | Chairperson | Derivative Exercise and Retained | +2,784 | – | 65,728 |
| 14 Aug 2026 | R. Tripeny | Independent Director | Derivative Exercise and Retained | +2,784 | – | 9,082 |
| 14 Aug 2026 | Mark Capone | Independent Director | Derivative Exercise and Retained | +2,784 | – | 6,213 |
| 14 Aug 2026 | Shannon Hall | Independent Director | Derivative Exercise and Retained | +2,784 | – | 6,973 |
| 14 Aug 2026 | Jennifer Alltoft | Independent Director | Derivative Exercise and Retained | +2,784 | – | 7,662 |
| 12 Aug 2026 | John Sullivan | Chairperson | Private Disposition | -7,093 | $112.80 | 65,728 |
| 12 Aug 2026 | R. Tripeny | Independent Director | Open Market Acquisition | +900 | $113.69 | 9,082 |
| 12 Aug 2026 | Siddhartha Kadia | Chief Executive Officer | Private Acquisition | +7,093 | $112.80 | 7,093 |
| 21 Jun 2026 | John Sakys | Vice President | Automatic Disposition | -2,827 | $89.50 | 19,835 |
| 21 Jun 2026 | Brian Archbold | Senior Vice President of Operations & Continuous Improvement | Open Market Disposition | -2,516 | $89.50 | 6,377 |
| 21 Jun 2026 | Lyndsey Crennen | Chief Accounting Officer | Automatic Disposition | -442 | $89.50 | 2,020 |
| 17 Jun 2026 | John Sakys | Vice President | Other Acquisition | +2,282 | $95.10 | 19,835 |
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 | 390,561 | 7.0% | 3.8 |
| 30 Sep 2026 | 447,048 | 8.0% | 3.7 |
| 15 Sep 2026 | 403,559 | 7.2% | 3.0 |
| 31 Aug 2026 | 433,982 | 7.8% | 2.7 |
| 14 Aug 2026 | 337,738 | 6.0% | 2.0 |
| 31 Jul 2026 | 324,102 | 5.8% | 2.5 |
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