13F 申报指南13F 概念全攻略
什么是 SEC Form 13F 申报？美股机构大户持股全攻略
完整解读 Form 13F 申报规范、1 亿美元门槛与 45 天延迟申报机制，学会如何追踪顶级对冲基金与机构法人持仓动向。
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CIK: 0001222765
申报总市值
US$10.8亿
US$10.8亿
98 檔
20.9%
根据最新整理的 13F 季度数据集，Water Island Capital LLC 于 Q1 2026 结束时的管理资产规模为 US$10.8亿。该机构在本季度申报了 98 档美股持仓，呈现出该时期的主要投资地图。
Water Island Capital LLC 在 Q1 2026 进行了结构性的板块轮动与仓位换股。在开立 59 个全新仓位及加仓 23 档持股的同时，亦同步清仓 52 档并减仓 10 档标的。
在资产配置集中度方面，Water Island Capital LLC 的前 5 大核心持股（包含 EA, JHG, WBD 等）合计占整体申报市值的 20.9%，反映机构在主要关键仓位上的权重分布。
| # | 代码 | 标的名称 | 资产子类别 | 占比 | 占比变动 | 持仓量变化 | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | EA | Electronic Arts Inc | 股票-通信服务 | 5.69% | -0.87% | +38.18% | |
| 2 | JHG | Janus Henderson Group plc | 股票-金融 | 5.29% | -0.98% | +42.44% | |
| 3 | WBD | Warner Bros Discovery Inc | 股票-通信服务 | 4.96% | -0.64% | +41.89% | |
| 4 | HO1 | Hologic Inc | 股票-其他 | 4.73% | -4.73% | EXIT | |
| 5 | TXNM | Txnm Energy Inc | 股票-公用事业 | 4.40% | -0.50% | +17.08% | |
| 6 | PEN | Penumbra Inc | 股票-医疗保健 | 4.40% | +0.02% | — | |
| 7 | GTLS | Chart Industries Inc | 股票-工业 | 4.38% | +0.24% | +0.86% | |
| 8 | NSC | Norfolk Southern CORP | 股票-工业 | 4.30% | -0.02% | +3.88% | |
| 9 | MASI* | Masimo CORP | 股票-其他 | 3.86% | -3.86% | EXIT | |
| 10 | EA | Electronic Arts Inc. | 股票-通信服务 | 3.41% | -3.41% | EXIT | |
| 11 | WBS | Webster Financial CORP | 股票-金融 | 3.22% | -0.11% | — | |
| 12 | WBD | Warner Bros. Discovery, Inc. | 股票-通信服务 | 3.22% | +0.56% | +1005.90% | |
| 13 | T86 | Tri Pointe Homes Inc | 股票-其他 | 2.80% | -2.80% | EXIT | |
| 14 | NSA | National Storage Affiliates | 股票-房地产 | 2.43% | +0.58% | — | |
| 15 | GLDD | Great Lakes Dredge & Dock Co | 股票-其他 | 2.40% | -2.40% | EXIT | |
| 16 | ACLXGBX | Arcellx Inc | 股票-其他 | 2.35% | -2.35% | EXIT | |
| 17 | DAWNGBX | Day One Biopharmaceuticals I | 股票-其他 | 2.26% | -2.26% | EXIT | |
| 18 | DBRG | Digitalbridge Group Inc | 股票-金融 | 2.24% | -0.22% | +39.83% | |
| 19 | ✓ | Day One Biopharmaceuticals I | 股票-其他 | 2.01% | -2.01% | EXIT | |
| 20 | STEL | Stellar Bancorp Inc | 股票-其他 | 1.76% | -0.36% | — | |
| 21 | EHABUSD | Enhabit Inc | 股票-其他 | 1.55% | -1.55% | EXIT | |
| 22 | SLAB | Silicon Laboratories Inc | 股票-科技 | 1.36% | +1.65% | — | |
| 23 | KVUE | Kenvue Inc | 股票-非周期性消费 | 1.35% | -0.64% | +1.51% | |
| 24 | ✓ | Kenvue Inc | 股票-其他 | 1.35% | -1.35% | EXIT | |
| 25 | VRSK | Verisk Analytics, Inc. | 股票-工业 | 1.26% | -1.26% | EXIT | |
| 26 | PKST | Peakstone Realty Trust | 股票-其他 | 1.17% | -1.17% | EXIT | |
| 27 | 430 | Terns Pharmaceuticals Inc | 股票-其他 | 1.11% | -1.11% | EXIT | |
| 28 | ✓ | Terns Pharmaceuticals Inc | 股票-其他 | 1.11% | -1.11% | EXIT | |
| 29 | ✓ | Silicon Laboratories Inc | 股票-其他 | 1.11% | -1.11% | EXIT | |
| 30 | ✓ | 股票-其他 | 1.00% | -1.00% | EXIT | ||
| 31 | ZIM | ZIM Integrated Shipping Services Ltd. | 股票-其他 | 0.98% | -0.98% | EXIT | |
| 32 | ✓ | Zim Integrated Shipping Serv | 股票-其他 | 0.98% | -0.98% | EXIT | |
| 33 | TXNM 5.75 06-01-54债券 | Txnm Energy Inc | 债券 | 0.90% | -0.17% | +100.00% | |
| 34 | ✓ | Janus Henderson Group PLC | 股票-其他 | 0.88% | -0.88% | EXIT | |
| 35 | ✓ | Banco Santander S.a. | 股票-其他 | 0.86% | -0.86% | EXIT | |
| 36 | UNF | Unifirst Corp/ma | 股票-其他 | 0.72% | -0.50% | — | |
| 37 | CSGS 3.875 09-15-28债券 | Csg Systems Internationa | 债券 | 0.68% | -0.68% | EXIT | |
| 38 | AXTA | Axalta Coating Systems Ltd. | 股票-原材料 | 0.64% | -0.33% | +0.57% | |
| 39 | ✓ | Axalta Coating Sys LTD | 股票-其他 | 0.60% | -0.60% | EXIT | |
| 40 | RPD 0.25 03-15-27债券 | Rapid7 Inc | 债券 | 0.54% | +0.19% | — | |
| 41 | ✓ | Apellis Pharmaceuticals Inc | 股票-其他 | 0.54% | -0.54% | EXIT | |
| 42 | APLSUSD | Apellis Pharmaceuticals Inc | 股票-其他 | 0.54% | -0.54% | EXIT | |
| 43 | AL | Air Lease CORP | 股票-其他 | 0.53% | -0.53% | EXIT | |
| 44 | BSY 0.375 07-01-27债券 | Bentley Systems | 债券 | 0.53% | -0.08% | — | |
| 45 | NTNX 0.5 12-15-29债券 | Nutanix Inc | 债券 | 0.50% | -0.50% | EXIT | |
| 46 | RDFN 0.5 04-01-27债券 | Redfin CORP | 债券 | 0.48% | -0.08% | — | |
| 47 | HALO 0.25 03-01-27债券 | Halozyme Therapeutics In | 债券 | 0.35% | -0.35% | EXIT | |
| 48 | AES | Aes CORP | 股票-公用事业 | 0.29% | -0.06% | — | |
| 49 | VRNS 1 09-15-29债券 | Varonis System Inc | 债券 | 0.29% | +0.16% | — | |
| 50 | CWAN | Clearwater Analytics Holdings, Inc. | 股票-科技 | 0.29% | -0.29% | EXIT |
| # | 代码 | 标的名称 | 占比变动 | 持仓量变化 | 异动类型 |
|---|---|---|---|---|---|
| 1 | WBD | Warner Bros. Discovery, Inc. | +2.9% | +1005.90% | 加仓 |
| 2 | JHG | Janus Henderson Group plc | +2% | +42.44% | 加仓 |
| 3 | EA | Electronic Arts Inc | +1.7% | +38.18% | 加仓 |
| 4 | WBD | Warner Bros Discovery Inc | +1.4% | +41.89% | 加仓 |
| 5 | HO1 | Hologic Inc | +1% | +19.73% | 加仓 |
| 6 | ✓ | Janus Henderson Group PLC | +0.8% | +1185.83% | 加仓 |
| 7 | TXNM | Txnm Energy Inc | +0.7% | +17.08% | 加仓 |
| 8 | DBRG | Digitalbridge Group Inc | +0.7% | +39.83% | 加仓 |
| 9 | TXNM 5.75 06-01-54债券 | Txnm Energy Inc | +0.5% | +100.00% | 加仓 |
| 10 | ✓ | Axalta Coating Sys LTD | +0.4% | +190.61% | 加仓 |
| 11 | NSC | Norfolk Southern CORP | +0.3% | +3.88% | 加仓 |
| 12 | GTLS | Chart Industries Inc | +0.2% | +0.86% | 加仓 |
| 13 | NTNX 0.5 12-15-29债券 | Nutanix Inc | +0.1% | +42.86% | 加仓 |
| 14 | DKS | Dick's Sporting Goods Inc | +0.1% | +386.18% | 加仓 |
| 15 | KVUE | Kenvue Inc | +0.1% | +1.51% | 加仓 |
| 16 | ✓ | Kenvue Inc | +0.1% | +0.81% | 加仓 |
| 17 | CSGS 3.875 09-15-28债券 | Csg Systems Internationa | 0% | — | 不变 |
| 18 | RDFN 0.5 04-01-27债券 | Redfin CORP | 0% | — | 不变 |
| 19 | BHF | Brighthouse Financial Inc | 0% | +16.12% | 加仓 |
| 20 | PRA | Proassurance CORP | 0% | +8.75% | 加仓 |
| 21 | BSY 0.375 07-01-27债券 | Bentley Systems | 0% | — | 不变 |
| 22 | XHC | Heritage Commerce CORP | 0% | +11.99% | 加仓 |
| 23 | HALO 0.25 03-01-27债券 | Halozyme Therapeutics In | — | — | 不变 |
| 24 | BVE | Diamond Hill Investment Grp | — | +1.61% | 加仓 |
| 25 | NWE | Northwestern Energy Group In | — | -3.28% | 减仓 |
| 26 | FFWM | First Foundation Inc | — | +2.51% | 加仓 |
| 27 | RPD 0.25 03-15-27债券 | Rapid7 Inc | 0% | — | 不变 |
| 28 | VRNS 1 09-15-29债券 | Varonis System Inc | 0% | — | 不变 |
| 29 | UTE0 | Cantaloupe Inc | 0% | -18.15% | 减仓 |
| 30 | 7WH | Udemy Inc | 0% | +2.51% | 加仓 |
| 31 | AXTA | Axalta Coating Systems Ltd. | -0.1% | +0.57% | 加仓 |
| 32 | IMXI | International Money Express | -0.1% | -62.56% | 减仓 |
| 33 | GLAD 5.875 10-01-30债券 | Gladstone Capital CORP | -0.1% | -50.00% | 减仓 |
| 34 | 628 | Semrush Holdings Inc-a | -0.6% | -78.70% | 减仓 |
| 35 | AM6 | Amicus Therapeutics Inc | -0.9% | -85.27% | 减仓 |
| 36 | ✓ | Csg Systems International In | -1.1% | -86.58% | 减仓 |
| 37 | AL | Air Lease CORP | -1.5% | -75.50% | 减仓 |
| 38 | CWAN | Clearwater Analytics Holdings, Inc. | -2% | -87.48% | 减仓 |
| 39 | SDA | Sealed Air CORP | -2.2% | -89.97% | 减仓 |
| 40 | PEN | Penumbra Inc | — | NEW | 新建仓 |
| 41 | ✓ | Cyberark Software LTD. Cmn | — | EXIT | 清仓 |
| 42 | EXK | Exact Sciences CORP | — | EXIT | 清仓 |
| 43 | CMA | Comerica Inc | — | EXIT | 清仓 |
| 44 | MASI* | Masimo CORP | — | NEW | 新建仓 |
| 45 | CDTX | Cidara Therapeutics Inc | — | EXIT | 清仓 |
| 46 | EA | Electronic Arts Inc. | — | NEW | 新建仓 |
| 47 | WBS | Webster Financial CORP | — | NEW | 新建仓 |
| 48 | T86 | Tri Pointe Homes Inc | — | NEW | 新建仓 |
| 49 | ✓ | Avadel Pharmaceuticals PLC ADR | — | EXIT | 清仓 |
| 50 | TGNA | Tegna Inc | — | EXIT | 清仓 |
根据 SEC 官方 Form 13F 申报备案，Water Island Capital LLC 在 Q1 2026 季度的美股持仓总市值约为 US$10.8亿，共申报了 98 个公开持股仓位。
在 Q1 2026 季度，Water Island Capital LLC 按市值排列的前三大核心持股分别为：EA (5.7%)、JHG (5.3%)、WBD (5.0%)。其中最大持股仓位 EA 占据整体投资组合约 5.7% 的权重。
精选 AlphaSMO 大户持股与内部人交易深度分析，提升投资决策胜率
完整解读 Form 13F 申报规范、1 亿美元门槛与 45 天延迟申报机制，学会如何追踪顶级对冲基金与机构法人持仓动向。
本季最大新建仓标的
PEN
市值: US$3943.6万
本季最大获利了结 / 清仓标的
CYBERARK SOFTWARE LTD. CMN
前期市值: US$3865.0万
在 Q1 2026 季度中，Water Island Capital LLC 共进行了 144 项持仓异动，包含新建仓 59 个仓位、加仓 23 个仓位、减仓 10 个仓位以及清仓 52 个仓位。 其中最大新建仓标的为 PEN。 本季清仓仓位包含 CYBERARK SOFTWARE LTD. CMN。
本页面所有持股数据均直接同步自美国证券交易委员会（SEC）EDGAR 官方系统之 13F-HR / 13F-HR/A 季度申报文件。AlphaSMO 通过机器解析 CUSIP 与个股对照，提供 100% 精准对齐的历史时序数据集，并支持 Schema.org 结构化数据格式。
解析公司高管、董事与 10% 大股东之 Form 4 内部人交易申报，掌握高管自家股票买卖第一手信号。
深入剖析 5% 股权申报门槛、13D 与 13G 之差异，以及最新 SEC 申报时程规范，洞察机构法人的激进投资动向。