Definium 制药 DFTX
$33.27 +$2.91 (+9.59%)
休市 · Nov 6, 8:10 pm ET · 最新盘后价 $33.42 +0.45%
开盘$31.23
昨收$30.36
当日区间$30.91 – $33.42
成交量1.28M
市值$4.47B
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87.7%+0.19 个百分点，较上季度
持仓机构数421+7 ，较上季度
内部人近期交易36次买入 / 14次卖出净买入
空头持仓比例7.48% 占流通股回补天数 4.9 · 截至 15 Oct 2026
卖空成交量占比19.3%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：−$2.29M（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29.2%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8.29%降至7.48%。
近期机构持仓变动
| 股东 | 类型 | 期间 | 持股变动 | 新持股比例 |
|---|---|---|---|---|
| Lord, Abbett & Co. LLC | Mutual Fund | 2026/Q3 | +539,476 | 0.4% |
| Capital Research | Mutual Fund | 2026/Q3 | +8,331,133 | 6.2% |
| T. Rowe Price Group, Inc. | Mutual Fund | 2026/Q3 | +4,582,031 | 3.5% |
| FMR | Mutual Fund | 2026/Q3 | +2,943,158 | 3.5% |
| BlackRock | Mutual Fund | 2026/Q3 | +2,752,604 | 8.4% |
| Avoro Capital Advisors LLC | Hedge Fund | 2026/Q3 | +2,188,888 | 5.4% |
| Janus Henderson Group plc | Mutual Fund | 2026/Q3 | +2,059,604 | 4.2% |
| AllianceBernstein | Mutual Fund | 2026/Q3 | +1,711,584 | 1.3% |
| Wellington Management Group | Mutual Fund | 2026/Q3 | +1,644,985 | 2.2% |
| RA Capital Management, L.P. | VC/PE Fund | 2026/Q3 | +1,500,000 | 1.1% |
| Geode Capital Management, LLC | Mutual Fund | 2026/Q3 | +1,149,414 | 2.7% |
| Driehaus Capital Management LLC | Mutual Fund | 2026/Q3 | +933,387 | 5.1% |
| Polar Capital Holdings Plc | Mutual Fund | 2026/Q3 | +777,253 | 0.6% |
| Vanguard Portfolio Management, LLC | Mutual Fund | 2026/Q3 | +775,761 | 1.2% |
| Vanguard Capital Management, LLC | Mutual Fund | 2026/Q3 | +641,232 | 1.7% |
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 |
|---|---|---|---|---|---|---|
| 24 Sep 2026 | Mark Sullivan | Chief Legal Officer | Automatic Disposition | -14,051 | $36.57 | 253,603 |
| 24 Sep 2026 | Brandi Roberts | Chief Financial Officer | Automatic Disposition | -3,377 | $36.57 | 263,278 |
| 24 Sep 2026 | Matthew Wiley | Chief Commercial Officer | Automatic Disposition | -3,097 | $36.57 | 8,411 |
| 24 Sep 2026 | Robert Barrow | Chief Executive Officer | Automatic Disposition | -31,550 | $36.57 | 444,340 |
| 24 Sep 2026 | Daniel Karlin | Chief Medical Officer | Automatic Disposition | -10,853 | $36.57 | 574,096 |
| 17 Sep 2026 | Carol Vallone | Independent Chairperson | Derivative Exercise and Retained | +1,086 | $35.52 | 18,797 |
| 17 Sep 2026 | Andreas Krebs | Independent Vice Chairperson | Derivative Exercise and Retained | +1,629 | $35.52 | 17,903 |
| 13 Sep 2026 | Mark Sullivan | Chief Legal Officer | Other Acquisition | +125,000 | – | 267,654 |
| 13 Sep 2026 | Brandi Roberts | Chief Financial Officer | Other Acquisition | +125,000 | – | 266,655 |
| 13 Sep 2026 | Matthew Wiley | Chief Commercial Officer | Other Acquisition | +125,000 | – | 362,133 |
| 13 Sep 2026 | Robert Barrow | Chief Executive Officer | Other Acquisition | +750,000 | – | 1,768,750 |
| 13 Sep 2026 | Daniel Karlin | Chief Medical Officer | Other Acquisition | +200,000 | – | 584,949 |
| 2 Sep 2026 | Robert Barrow | Chief Executive Officer | Automatic Disposition | -19,023 | $37.94 | 450,890 |
| 1 Sep 2026 | Robert Barrow | Chief Executive Officer | Other Acquisition | +40,000 | – | 450,890 |
| 11 Aug 2026 | Mark Sullivan | Chief Legal Officer | Other Acquisition | +62,500 | – | 125,259 |
| 11 Aug 2026 | Brandi Roberts | Chief Financial Officer | Other Acquisition | +62,500 | – | 131,362 |
| 11 Aug 2026 | Matthew Wiley | Chief Commercial Officer | Other Acquisition | +62,500 | – | 237,133 |
| 11 Aug 2026 | Robert Barrow | Chief Executive Officer | Other Acquisition | +375,000 | – | 1,065,625 |
| 11 Aug 2026 | Daniel Karlin | Chief Medical Officer | Other Acquisition | +100,000 | – | 603,282 |
| 24 Jun 2026 | Mark Sullivan | Chief Legal Officer | Automatic Disposition | -13,008 | $45.03 | 23,698 |
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 | 10,044,279 | 7.5% | 4.9 |
| 30 Sep 2026 | 11,344,959 | 8.4% | 4.9 |
| 15 Sep 2026 | 11,785,195 | 8.8% | 5.2 |
| 31 Aug 2026 | 9,836,400 | 7.3% | 5.6 |
| 14 Aug 2026 | 8,969,420 | 6.7% | 3.4 |
| 31 Jul 2026 | 10,742,085 | 8.3% | 6.6 |
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