13F 申報指南13F 觀念全攻略
什麼是 SEC Form 13F 申報？美股機構大戶持股全攻略
完整解讀 Form 13F 申報規範、1 億美元門檻與 45 天延遲申報機制，學會如何追蹤頂級對沖基金與機構法人持倉動向。
AlphaSMO 權威研究指南閱讀專題
CIK: 0001742418
申報總市值
US$13.8億
US$13.8億
50 檔
27.3%
Dundas Partners LLP 在 Q2 2025 季度的美股部位總計估值為 US$13.8億，分散於 50 個持倉標的之中，反映其市場參與廣度與投資規模。
從 Q2 2025 申報觀察，Dundas Partners LLP 採取防禦導向的調倉策略，本季減碼 17 檔個股並出清 2 檔部位，顯示機構在該時期進行風險控制與流動性回收。
從部位權重觀察，前 5 大標的（包含 MSFT, WRB, GWW）累計市值佔比達 27.3%，是驅動 Dundas Partners LLP 該季度整體投資組合績效表現的核心支柱。
| # | 代號 | 標的名稱 | 資產子類別 | 佔比 | 佔比變動 | 持倉量變化 | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | MSFT | Microsoft CORP | 股票-科技 | 6.45% | -0.70% | — | |
| 2 | WRB | Wr Berkley CORP | 股票-金融 | 5.74% | -0.07% | — | |
| 3 | GWW | Ww Grainger Inc | 股票-工業 | 5.33% | +0.23% | — | |
| 4 | TSM | Taiwan Semiconductor-sp Adr | 股票-科技 | 4.45% | +1.75% | -2.33% | |
| 5 | V | Visa Inc-class A Shares | 股票-金融 | 4.32% | +0.37% | — | |
| 6 | APH | Amphenol Corp-cl A | 股票-科技 | 4.24% | +0.98% | — | |
| 7 | BRO | Brown & Brown Inc | 股票-金融 | 3.88% | -0.60% | — | |
| 8 | AXP | American Express Co | 股票-金融 | 3.87% | -0.06% | — | |
| 9 | GOOG | Alphabet Inc-cl C | 股票-通訊服務 | 3.72% | +0.59% | — | |
| 10 | ABT | Abbott Laboratories | 股票-醫療保健 | 3.51% | -0.69% | +7.73% | |
| 11 | AIT | Applied Industrial Tech Inc | 股票-工業 | 3.39% | -0.04% | EXIT | |
| 12 | ADI | Analog Devices Inc | 股票-科技 | 3.28% | +0.47% | — | |
| 13 | NDAQ | Nasdaq Inc | 股票-金融 | 3.11% | -0.55% | — | |
| 14 | BKNG | Booking Holdings Inc | 股票-循環性消費 | 2.93% | +0.08% | — | |
| 15 | MRSH | Marsh & Mclennan Cos | 股票-金融 | 2.85% | — | — | |
| 16 | RMD | Resmed Inc | 股票-醫療保健 | 2.73% | -0.77% | — | |
| 17 | ACN | Accenture plc | 股票-科技 | 2.63% | -1.81% | EXIT | |
| 18 | TMO | Thermo Fisher Scientific Inc | 股票-醫療保健 | 2.63% | -0.29% | +24.01% | |
| 19 | SYK | Stryker CORP | 股票-醫療保健 | 2.49% | -0.33% | — | |
| 20 | ROST | Ross Stores Inc | 股票-循環性消費 | 2.48% | -0.44% | — | |
| 21 | AMAT | Applied Materials Inc | 股票-科技 | 2.41% | +6.04% | -57.75% | |
| 22 | ALC | Alcon Inc. | 股票-醫療保健 | 2.41% | -0.26% | -3.61% | |
| 23 | EFX | Equifax Inc | 股票-工業 | 2.39% | -1.04% | — | |
| 24 | HDB | Hdfc Bank Ltd-adr | 股票-金融 | 2.36% | -0.14% | +12.67% | |
| 25 | FDS | Factset Research Systems Inc | 股票-金融 | 2.24% | — | -3.19% | |
| 26 | AME | Ametek Inc | 股票-工業 | 2.17% | +0.07% | +20.77% | |
| 27 | ZTS | Zoetis Inc | 股票-醫療保健 | 2.14% | -1.97% | — | |
| 28 | INTU | Intuit Inc | 股票-科技 | 2.02% | -0.67% | — | |
| 29 | HD | Home Depot Inc | 股票-循環性消費 | 1.80% | — | -4.39% | |
| 30 | MA | Mastercard Inc - A | 股票-金融 | 1.74% | +0.20% | — | |
| 31 | COST | Costco Wholesale CORP | 股票-非循環性消費 | 1.65% | — | — | |
| 32 | MSCI | Msci Inc | 股票-金融 | 1.51% | -1.56% | EXIT | |
| 33 | RBA | Rb Global Inc | 股票-工業 | 0.70% | -0.05% | +3.47% | |
| 34 | RYAN | Ryan Specialty Holdings Inc | 股票-金融 | 0.05% | -0.01% | EXIT | |
| 35 | PAYC | Paycom Software Inc | 股票-科技 | 0.04% | -0.01% | EXIT | |
| 36 | WTS | Watts Water Technologies-a | 股票-工業 | 0.04% | -0.03% | EXIT | |
| 37 | JKHY | Jack Henry & Associates Inc | 股票-科技 | 0.04% | -0.04% | EXIT | |
| 38 | MKTX | Marketaxess Holdings Inc | 股票-金融 | 0.03% | -0.02% | EXIT | |
| 39 | ESAB | Esab CORP | 股票-工業 | 0.03% | -0.03% | EXIT | |
| 40 | AAPL | Apple Inc | 股票-科技 | 0.03% | — | -98.44% | |
| 41 | BMI | Badger Meter Inc | 股票-科技 | 0.03% | -0.01% | EXIT | |
| 42 | IDCC 3.5 06-01-27債券 | Interdigital Inc | 債券 | 0.03% | -0.01% | EXIT | |
| 43 | RLI | Rli CORP | 股票-金融 | 0.02% | -0.01% | EXIT | |
| 44 | TRU | Transunion | 股票-金融 | 0.02% | -0.01% | EXIT | |
| 45 | MORN | Morningstar Inc | 股票-金融 | 0.02% | — | -41.20% | |
| 46 | SIGI | Selective Insurance Group | 股票-金融 | 0.02% | — | -36.33% | |
| 47 | LMAT | Lemaitre Vascular Inc | 股票-其他 | 0.02% | -0.02% | EXIT | |
| 48 | ADP | Automatic Data Processing | 股票-科技 | 0.01% | — | -99.31% | |
| 49 | LFUS | Littelfuse Inc | 股票-科技 | 0.01% | -0.04% | EXIT | |
| 50 | GGG | Graco Inc | 股票-工業 | 0.01% | — | -74.45% |
| # | 代號 | 標的名稱 | 佔比變動 | 持倉量變化 | 異動類型 |
|---|---|---|---|---|---|
| 1 | AIT | Applied Industrial Tech Inc | +3.4% | +12956.01% | 加碼 |
| 2 | MSFT | Microsoft CORP | +1.3% | — | 不變 |
| 3 | APH | Amphenol Corp-cl A | +1.3% | — | 不變 |
| 4 | TSM | Taiwan Semiconductor-sp Adr | +0.9% | -2.33% | 減碼 |
| 5 | BKNG | Booking Holdings Inc | +0.5% | — | 不變 |
| 6 | HDB | Hdfc Bank Ltd-adr | +0.4% | +12.67% | 加碼 |
| 7 | AXP | American Express Co | +0.4% | — | 不變 |
| 8 | AME | Ametek Inc | +0.4% | +20.77% | 加碼 |
| 9 | INTU | Intuit Inc | +0.4% | — | 不變 |
| 10 | ADI | Analog Devices Inc | +0.3% | — | 不變 |
| 11 | NDAQ | Nasdaq Inc | +0.3% | — | 不變 |
| 12 | GOOG | Alphabet Inc-cl C | +0.3% | — | 不變 |
| 13 | RMD | Resmed Inc | +0.2% | — | 不變 |
| 14 | ABT | Abbott Laboratories | +0.1% | +7.73% | 加碼 |
| 15 | JKHY | Jack Henry & Associates Inc | 0% | NEW | 新建倉 |
| 16 | RBA | Rb Global Inc | 0% | +3.47% | 加碼 |
| 17 | RLI | Rli CORP | 0% | NEW | 新建倉 |
| 18 | LMAT | Lemaitre Vascular Inc | 0% | NEW | 新建倉 |
| 19 | SYK | Stryker CORP | 0% | — | 不變 |
| 20 | EFX | Equifax Inc | 0% | — | 不變 |
| 21 | BMI | Badger Meter Inc | 0% | +431.40% | 加碼 |
| 22 | PAYC | Paycom Software Inc | — | +5.17% | 加碼 |
| 23 | WTS | Watts Water Technologies-a | — | -11.57% | 減碼 |
| 24 | IDCC 3.5 06-01-27債券 | Interdigital Inc | — | -3.56% | 減碼 |
| 25 | MORN | Morningstar Inc | 0% | -41.20% | 減碼 |
| 26 | SIGI | Selective Insurance Group | 0% | -36.33% | 減碼 |
| 27 | RYAN | Ryan Specialty Holdings Inc | 0% | -6.40% | 減碼 |
| 28 | MKTX | Marketaxess Holdings Inc | 0% | -12.78% | 減碼 |
| 29 | LFUS | Littelfuse Inc | 0% | -30.98% | 減碼 |
| 30 | ESAB | Esab CORP | 0% | -6.00% | 減碼 |
| 31 | COST | Costco Wholesale CORP | 0% | — | 不變 |
| 32 | TRU | Transunion | 0% | -50.81% | 減碼 |
| 33 | POWI | Power Integrations Inc | 0% | EXIT | 清倉 |
| 34 | GWW | Ww Grainger Inc | 0% | — | 不變 |
| 35 | GGG | Graco Inc | 0% | -74.45% | 減碼 |
| 36 | MA | Mastercard Inc - A | -0.1% | — | 不變 |
| 37 | MSCI | Msci Inc | -0.1% | — | 不變 |
| 38 | TMO | Thermo Fisher Scientific Inc | -0.1% | +24.01% | 加碼 |
| 39 | WRB | Wr Berkley CORP | -0.2% | — | 不變 |
| 40 | ROST | Ross Stores Inc | -0.2% | — | 不變 |
| 41 | HD | Home Depot Inc | -0.2% | -4.39% | 減碼 |
| 42 | V | Visa Inc-class A Shares | -0.2% | — | 不變 |
| 43 | ZTS | Zoetis Inc | -0.3% | — | 不變 |
| 44 | FDS | Factset Research Systems Inc | -0.3% | -3.19% | 減碼 |
| 45 | ACN | Accenture plc | -0.3% | — | 不變 |
| 46 | ALC | Alcon Inc. | -0.4% | -3.61% | 減碼 |
| 47 | AMAT | Applied Materials Inc | -0.4% | -57.75% | 減碼 |
| 48 | MRSH | Marsh & Mclennan Cos | -0.5% | — | 不變 |
| 49 | BRO | Brown & Brown Inc | -0.7% | — | 不變 |
| 50 | NDSN | Nordson CORP | -1.8% | EXIT | 清倉 |
根據 SEC 官方 Form 13F 申報備案，Dundas Partners LLP 在 Q2 2025 季度的美股持倉總市值約為 US$13.8億，共申報了 50 個公開持股部位。
在 Q2 2025 季度，Dundas Partners LLP 按市值排列的前三大核心持股分別為：MSFT (6.5%)、WRB (5.7%)、GWW (5.3%)。其中最大持股部位 MSFT 佔據整體投資組合約 6.5% 的權重。
精選 AlphaSMO 大戶持股與內部人交易深度分析，提升投資決策勝率
完整解讀 Form 13F 申報規範、1 億美元門檻與 45 天延遲申報機制，學會如何追蹤頂級對沖基金與機構法人持倉動向。
本季最大新建倉標的
JKHY
市值: US$52.2萬
本季最大獲利了結 / 清倉標的
NDSN
前期市值: US$2406.7萬
在 Q2 2025 季度中，Dundas Partners LLP 共進行了 30 項持倉異動，包含新建倉 3 個部位、加碼 8 個部位、減碼 17 個部位以及清倉 2 個部位。 其中最大新建倉標的為 JKHY。 本季清倉部位包含 NDSN。
本頁面所有持股數據均直接同步自美國證券交易委員會（SEC）EDGAR 官方系統之 13F-HR / 13F-HR/A 季度申報文件。AlphaSMO 透過機器解析 CUSIP 與個股對照，提供 100% 精準對齊的歷史時序數據集，並支援 Schema.org 結構化資料格式。
解析公司高管、董事與 10% 大股東之 Form 4 內部人交易申報，掌握高管自家股票買賣第一手訊號。
深入剖析 5% 股益申報門檻、13D 與 13G 之差異，以及最新 SEC 申報時程規範，洞察機構法人的激進投資動向。