西科环保 CECO
$43.71 +$6.05 (+16.06%)
休市 · Nov 6, 8:10 pm ET · 最新盘后价 $43.54 -0.39%
开盘$39.52
昨收$37.66
当日区间$38.89 – $43.81
成交量2.27M
市值$2.56B
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94.3%-0.06 个百分点，较上季度
持仓机构数398-1 ，较上季度
内部人近期交易24次买入 / 24次卖出持平
空头持仓比例2.99% 占流通股回补天数 1.9 · 截至 15 Oct 2026
卖空成交量占比7.2%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：+$16.31M（13个净流入日，7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29.6%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基本持稳于2.99%。
近期机构持仓变动
| 股东 | 类型 | 期间 | 持股变动 | 新持股比例 |
|---|---|---|---|---|
| FMR | Mutual Fund | 2026/Q3 | +2,194,409 | 7.7% |
| BlackRock | Mutual Fund | 2026/Q3 | +2,038,709 | 7.4% |
| Dimensional Fund Advisors | Mutual Fund | 2026/Q3 | +1,282,024 | 3.7% |
| Vanguard Capital Management, LLC | Mutual Fund | 2026/Q3 | +1,176,815 | 4.6% |
| Divisadero Street Capital Management, LP | Hedge Fund | 2026/Q3 | +1,142,217 | 2.3% |
| Driehaus Capital Management LLC | Mutual Fund | 2026/Q3 | +920,594 | 2.7% |
| T. Rowe Price Group, Inc. | Mutual Fund | 2026/Q3 | +836,430 | 5.1% |
| State Street Global Advisors | Mutual Fund | 2026/Q3 | +607,341 | 2.2% |
| Geode Capital Management, LLC | Mutual Fund | 2026/Q3 | +604,256 | 2.5% |
| GW&K Investment Management, LLC | Mutual Fund | 2026/Q3 | +601,544 | 1.0% |
| Needham Investment Management, LLC | Mutual Fund | 2026/Q3 | +570,000 | 1.6% |
| Invesco Ltd. | Mutual Fund | 2026/Q3 | +515,033 | 0.9% |
| Arrowstreet Capital, Limited Partnership | Mutual Fund | 2026/Q3 | +453,242 | 1.0% |
| Voya Investment Management LLC | Mutual Fund | 2026/Q3 | +391,171 | 0.7% |
| Emerald Advisers, LLC | Mutual Fund | 2026/Q3 | +370,982 | 2.1% |
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 |
|---|---|---|---|---|---|---|
| 14 Aug 2026 | Peter Johansson | Senior Vice President | Sale to Issuer | -2,914 | $79.59 | 37,832 |
| 14 Jul 2026 | Candace Harris-Peterson | Chief Human Resources Officer | Sale to Issuer | -890 | $79.03 | 2,392 |
| 4 Jul 2026 | Kiril Kovachev | VP, Chief Accounting Officer & Global Controller | Sale to Issuer | -460 | $82.15 | 15,801 |
| 24 Jun 2026 | Jason DeZwirek | Lead Independent Director | Open Market Disposition | -68,000 | $97.28 | 1,365,865 |
| 23 Jun 2026 | Peter Johansson | Senior Vice President | Open Market Disposition | -30,000 | $96.49 | 40,746 |
| 7 Jun 2026 | Candace Harris-Peterson | Chief Human Resources Officer | Other Acquisition | +3,105 | – | 19,754 |
| 31 May 2026 | Marcus George | Independent Director | Other Acquisition | +38,905 | – | 38,905 |
| 31 May 2026 | Robert Knowling | Independent Director | Other Acquisition | +2,215 | – | 13,077 |
| 31 May 2026 | Jason DeZwirek | Lead Independent Director | Other Acquisition | +2,215 | – | 8,515 |
| 31 May 2026 | Richard Wallman | Independent Director | Other Acquisition | +3,443 | – | 338,852 |
| 31 May 2026 | Richard Wallman | Independent Director | Open Market Acquisition | +20,000 | $76.85 | 338,852 |
| 31 May 2026 | Victor Richey | Independent Director | Other Acquisition | +6,378 | – | 6,378 |
| 31 May 2026 | Victor Richey | Independent Director | Other Derivative Acquisition | +2,215 | – | 2,215 |
| 31 May 2026 | Laurie Siegel | Independent Director | Other Acquisition | +2,215 | – | 22,133 |
| 31 May 2026 | Valerie Sachs | Independent Director | Other Acquisition | +3,190 | – | 105,334 |
| 31 May 2026 | Claudio Mannarino | Independent Director | Other Acquisition | +1,108 | – | 4,258 |
| 31 May 2026 | Claudio Mannarino | Independent Director | Other Derivative Acquisition | +1,107 | – | 7,113 |
| 31 May 2026 | Munish Nanda | Independent Director | Other Acquisition | +2,215 | – | 64,246 |
| 31 May 2026 | Candace Harris-Peterson | Chief Human Resources Officer | Other Acquisition | +18,886 | – | 16,648 |
| 30 Apr 2026 | Munish Nanda | Independent Director | Open Market Disposition | -11,218 | $74.00 | 62,031 |
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 | 1,749,975 | 3.0% | 1.9 |
| 30 Sep 2026 | 1,909,836 | 3.3% | 2.8 |
| 15 Sep 2026 | 1,967,749 | 3.4% | 2.7 |
| 31 Aug 2026 | 1,737,388 | 3.0% | 2.7 |
| 14 Aug 2026 | 1,634,619 | 2.8% | 1.6 |
| 31 Jul 2026 | 1,761,490 | 3.0% | 1.8 |
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