奎斯特诊断 DGX
$255.63 +$0.89 (+0.35%)
休市 · Nov 6, 8:10 pm ET · 最新盘后价 $255.63 0.00%
开盘$251.64
昨收$254.74
当日区间$250.00 – $258.13
成交量945.2K
市值$28.12B
市盈率（TTM）25.5
股息率1.32%
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97.0%-0.33 个百分点，较上季度
持仓机构数1,325+24 ，较上季度
内部人近期交易38次买入 / 12次卖出净买入
空头持仓比例3.24% 占流通股回补天数 3.4 · 截至 15 Oct 2026
卖空成交量占比22.7%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：−$26.75M（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31.1%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3.34%降至3.24%。
近期机构持仓变动
| 股东 | 类型 | 期间 | 持股变动 | 新持股比例 |
|---|---|---|---|---|
| General American Investors Company, Inc. | Mutual Fund | 2026/Q3 | +70,585 | 0.1% |
| Amundi Luxembourg S.A. | Mutual Fund | 2026/Q3 | +84,623 | 0.1% |
| Boston Partners Global Investors, Inc. | Mutual Fund | 2026/Q3 | +732,241 | 4.3% |
| FMR | Mutual Fund | 2026/Q3 | +452,817 | 1.2% |
| UBS Asset Management | Mutual Fund | 2026/Q3 | +282,373 | 1.7% |
| Balyasny Asset Management L.P. | Hedge Fund | 2026/Q3 | +272,473 | 0.3% |
| Mackenzie Financial Corporation | Mutual Fund | 2026/Q3 | +206,785 | 0.3% |
| PFA Pension, forsikringsaktieselskab | Private Company | 2026/Q3 | +205,613 | 0.2% |
| Fidelity International Ltd | Mutual Fund | 2026/Q3 | +165,407 | 0.2% |
| Integral Health Asset Management, LLC | Hedge Fund | 2026/Q3 | +140,000 | 0.2% |
| State Street Global Advisors | Mutual Fund | 2026/Q3 | +135,822 | 5.0% |
| BNP Paribas Financial Markets SNC | Private Company | 2026/Q3 | +124,964 | 0.4% |
| Schroder Investment Management Limited | Mutual Fund | 2026/Q3 | +117,645 | 0.4% |
| Eastern Investment Advisors, Inc. | Family Office/Trust | 2026/Q3 | +111,974 | 0.2% |
| Eaton Vance Management | Mutual Fund | 2026/Q3 | +110,570 | 1.2% |
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 |
|---|---|---|---|---|---|---|
| 25 Oct 2026 | Gary Pfeiffer | Independent Director | Intent to Sell (Form 144) | -1,203 | $243.00 | – |
| 20 Oct 2026 | Patrick Plewman | Senior Vice President of Diagnostic Services | Other Acquisition | +41 | $235.94 | 15,334 |
| 20 Oct 2026 | Timothy Main | Independent Director | Other Acquisition | +18 | $235.94 | 27,478 |
| 20 Oct 2026 | Robert Carter | Independent Director | Other Acquisition | +10 | $235.93 | 2,372 |
| 20 Oct 2026 | Vicky Gregg | Independent Director | Other Acquisition | +63 | $235.94 | 18,449 |
| 20 Oct 2026 | Wright Lassiter | Independent Director | Other Acquisition | +6 | $235.96 | 8,827 |
| 20 Oct 2026 | Sam Samad | Chief Financial Officer | Other Acquisition | +90 | $235.94 | 33,568 |
| 20 Oct 2026 | Mark Delaney | Chief Commercial Officer | Other Acquisition | +25 | $235.94 | 10,360 |
| 20 Oct 2026 | Karthik Kuppusamy | Senior Vice President of Clinical Solutions | Other Acquisition | +33 | $235.94 | 15,674 |
| 30 Sep 2026 | Timothy Wentworth | Director | Other Derivative Acquisition | +135 | – | 477 |
| 31 Aug 2026 | James Davis | Chairperson & CEO | Automatic Disposition | -10,000 | $242.72 | 122,423 |
| 27 Aug 2026 | Michael Prevoznik | General Counsel | Other Disposition | -1,000 | – | 42,337 |
| 27 Aug 2026 | Michael Prevoznik | General Counsel | Derivative Exercise and Sale | -22,677 | $244.51 | 42,337 |
| 27 Jul 2026 | Mark Delaney | Chief Commercial Officer | Automatic Disposition | -1,600 | $235.18 | 10,335 |
| 21 Jul 2026 | Patrick Plewman | Senior Vice President of Diagnostic Services | Other Acquisition | +46 | $206.81 | 15,293 |
| 21 Jul 2026 | Timothy Main | Independent Director | Other Acquisition | +21 | $206.81 | 27,460 |
| 21 Jul 2026 | Robert Carter | Independent Director | Other Acquisition | +11 | $206.80 | 2,362 |
| 21 Jul 2026 | Vicky Gregg | Independent Director | Other Acquisition | +72 | $206.81 | 18,386 |
| 21 Jul 2026 | Wright Lassiter | Independent Director | Other Acquisition | +6 | $206.81 | 8,821 |
| 21 Jul 2026 | Sam Samad | Chief Financial Officer | Other Acquisition | +102 | $206.81 | 33,478 |
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 | 3,573,902 | 3.2% | 3.4 |
| 30 Sep 2026 | 3,417,577 | 3.1% | 2.7 |
| 15 Sep 2026 | 3,600,559 | 3.3% | 3.7 |
| 31 Aug 2026 | 3,445,561 | 3.1% | 3.9 |
| 14 Aug 2026 | 3,321,414 | 3.0% | 4.7 |
| 31 Jul 2026 | 3,684,192 | 3.3% | 2.7 |
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