阿拉玛生物科学 ALMR
$28.05 +$1.15 (+4.26%)
休市 · Nov 8, 7:00 am ET · 最新盘后价 $28.05 0.00%
开盘$26.80
昨收$26.91
当日区间$26.35 – $28.15
成交量536.2K
市值$1.95B
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65.4%-7.14 个百分点，较上季度
持仓机构数114+3 ，较上季度
内部人近期交易23次买入 / 21次卖出净买入
ARK基金动态+132,222 股2笔近期交易 · 最近一次 11 Oct 2026
空头持仓比例3.86% 占流通股回补天数 3.1 · 截至 15 Oct 2026
卖空成交量占比19.5%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：+$938.1K（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42.1%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3.51%升至3.86%。
近期机构持仓变动
| 股东 | 类型 | 期间 | 持股变动 | 新持股比例 |
|---|---|---|---|---|
| Qiming Weichuang Venture Capital Management (Shanghai) Company Limited | VC/PE Fund | 2026/Q3 | +10,594,547 | 15.3% |
| Yuling Luo | Individual/Insider | 2026/Q3 | +3,088,217 | 4.5% |
| Samsara BioCapital LLC | VC/PE Fund | 2026/Q3 | +2,480,310 | 3.6% |
| T. Rowe Price Group, Inc. | Mutual Fund | 2026/Q3 | +2,213,662 | 3.2% |
| ARK Investment Management LLC | Mutual Fund | 2026/Q3 | +1,373,959 | 2.0% |
| Braidwell LP | Hedge Fund | 2026/Q3 | +1,083,983 | 1.6% |
| Emerald Advisers, LLC | Mutual Fund | 2026/Q3 | +1,069,310 | 1.5% |
| AllianceBernstein | Mutual Fund | 2026/Q3 | +1,003,077 | 1.4% |
| Hillhouse Capital Management, Ltd. | VC/PE Fund | 2026/Q3 | +956,462 | 1.4% |
| BlackRock | Mutual Fund | 2026/Q3 | +911,445 | 1.3% |
| Millennium Management LLC | Hedge Fund | 2026/Q3 | +865,764 | 1.2% |
| FMR | Mutual Fund | 2026/Q3 | +829,424 | 1.2% |
| Pura Vida Investments, LLC | Hedge Fund | 2026/Q3 | +755,909 | 1.1% |
| Artisan Partners Limited Partnership | Mutual Fund | 2026/Q3 | +613,744 | 0.9% |
| Deerfield Management Company, L.P. | Hedge Fund | 2026/Q3 | +600,000 | 0.9% |
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 | Qiming Weichuang Venture Capital Management (Shanghai) Company Limited | Open Market Disposition | -280,458 | $31.07 | 9,580,278 | |
| 21 Oct 2026 | Qiming Weichuang Venture Capital Management (Shanghai) Company Limited | Open Market Disposition | -342,626 | $30.81 | 9,860,736 | |
| 19 Oct 2026 | Qiming Weichuang Venture Capital Management (Shanghai) Company Limited | Open Market Disposition | -217,512 | $28.44 | 10,203,362 | |
| 15 Oct 2026 | Qiming Weichuang Venture Capital Management (Shanghai) Company Limited | Open Market Disposition | -173,673 | $28.26 | 10,420,874 | |
| 13 Oct 2026 | Qiming Weichuang Venture Capital Management (Shanghai) Company Limited | Intent to Sell (Form 144) | -1,558,858 | $23.52 | – | |
| 13 Oct 2026 | Qiming Weichuang Venture Capital Management (Shanghai) Company Limited | Intent to Sell (Form 144) | -435,468 | $23.52 | – | |
| 13 Oct 2026 | Qiming Weichuang Venture Capital Management (Shanghai) Company Limited | Intent to Sell (Form 144) | -363,729 | $23.52 | – | |
| 13 Oct 2026 | Qiming Weichuang Venture Capital Management (Shanghai) Company Limited | Intent to Sell (Form 144) | -41,945 | $23.53 | – | |
| 13 Sep 2026 | John Brottem | General Counsel | Other Acquisition | +29,000 | – | 29,000 |
| 13 Sep 2026 | John Brottem | General Counsel | Other Derivative Acquisition | +85,000 | $27.99 | 85,000 |
| 31 Aug 2026 | Robert Ragusa | Director | Other Acquisition | +5,686 | – | 5,686 |
| 31 Aug 2026 | Robert Ragusa | Director | Other Derivative Acquisition | +25,599 | $29.36 | 25,599 |
| 19 Apr 2026 | Nicholas Naclerio | Independent Director | Other Acquisition | +5,686 | – | 5,686 |
| 19 Apr 2026 | Franklin Witney | Lead Independent Director | Other Derivative Acquisition | +206,781 | $7.60 | 124,069 |
| 19 Apr 2026 | Franklin Witney | Lead Independent Director | Other Derivative Disposition | -206,781 | $7.60 | – |
| 19 Apr 2026 | Qiming Weichuang Venture Capital Management (Shanghai) Company Limited | Other Acquisition | +10,594,547 | – | 10,594,547 | |
| 19 Apr 2026 | Qiming Weichuang Venture Capital Management (Shanghai) Company Limited | Derivative Exercise and Sale | -10,594,547 | – | – | |
| 19 Apr 2026 | Yuling Luo | Chairperson & CEO | Other Acquisition | +76,509 | – | 76,509 |
| 19 Apr 2026 | Yuling Luo | Chairperson & CEO | Other Acquisition | +3,088,217 | – | 3,088,217 |
| 19 Apr 2026 | Yuling Luo | Chairperson & CEO | Other Disposition | -113,051 | – | – |
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 | 2,676,396 | 3.9% | 3.1 |
| 30 Sep 2026 | 2,810,938 | 4.1% | 4.3 |
| 15 Sep 2026 | 2,122,340 | 3.1% | 8.0 |
| 31 Aug 2026 | 2,121,181 | 3.1% | 6.5 |
| 14 Aug 2026 | 2,075,441 | 3.0% | 5.3 |
| 31 Jul 2026 | 2,430,004 | 3.5% | 11.3 |
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