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: 0001513211
申報總市值
US$21.2億
US$21.2億
148 檔
21.6%
在 Q1 2026 的 13F 官方備案中，Main Street Research LLC 管理的美股投資組合規模來到 US$21.2億，整體持股檔數為 148 檔。
Q1 2026 數據顯示 Main Street Research LLC 積極進場，新開立 31 個部位並同步加碼 75 檔個股，反映機構在該季度的資金注入與籌碼積累。
從部位權重觀察，前 5 大標的（包含 NVDA, AAPL, GOOGL）累計市值佔比達 21.6%，是驅動 Main Street Research LLC 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 | NVDA | Nvidia CORP | 股票-科技 | 6.30% | -0.35% | +4.18% | |
| 2 | AAPL | Apple Inc | 股票-科技 | 5.96% | -0.41% | +38.72% | |
| 3 | GOOGL | Alphabet Inc-cl A | 股票-通訊服務 | 5.22% | +0.13% | +4.79% | |
| 4 | ISCF | Ishares International Small | ETF-其他 | 4.76% | -0.62% | +2.66% | |
| 5 | TSM | Taiwan Semiconductor-sp Adr | 股票-科技 | 4.39% | +0.76% | +2.30% | |
| 6 | XBI | Ss Spdr S&p Biotech ETF | ETF-科技型 | 4.22% | +0.09% | +57.40% | |
| 7 | JPM | Jpmorgan Chase & Co | 股票-金融 | 3.83% | -0.33% | +0.83% | |
| 8 | AVGO | Broadcom Inc | 股票-科技 | 3.83% | -0.02% | +3.41% | |
| 9 | MCK | Mckesson CORP | 股票-醫療保健 | 3.41% | -2.39% | +0.61% | |
| 10 | AMZN | Amazon.com Inc | 股票-循環性消費 | 3.26% | -0.17% | +3.60% | |
| 11 | ASML | ASML Holding N.V. | 股票-科技 | 3.20% | +0.78% | +3.91% | |
| 12 | GLW | Corning Inc | 股票-科技 | 3.07% | +1.68% | — | |
| 13 | COST | Costco Wholesale CORP | 股票-非循環性消費 | 2.68% | -0.58% | -26.02% | |
| 14 | JNJ | Johnson & Johnson | 股票-醫療保健 | 2.66% | -0.40% | +4.22% | |
| 15 | EWY | Ishares Msci South Korea ETF | ETF-其他 | 2.59% | +0.85% | +1.80% | |
| 16 | GEV | GE Vernova Inc | 股票-工業 | 2.57% | +0.25% | +3.11% | |
| 17 | GLDM | Spdr Gold Minishares Trust | ETF-避險與商品 | 2.53% | -2.53% | EXIT | |
| 18 | CAT | Caterpillar Inc | 股票-工業 | 2.52% | +0.58% | +2.60% | |
| 19 | WMT | Walmart Inc | 股票-非循環性消費 | 2.49% | -0.63% | +1.91% | |
| 20 | CCJ | Cameco CORP | 股票-能源 | 2.46% | -0.58% | +1.89% | |
| 21 | META | Meta Platforms Inc-class A | 股票-通訊服務 | 2.36% | -0.44% | -18.01% | |
| 22 | APH | Amphenol Corp-cl A | 股票-科技 | 2.21% | +0.36% | +1.93% | |
| 23 | BHP | Bhp Group Ltd-spon Adr | 股票-原物料 | 2.20% | -0.12% | — | |
| 24 | AZN | AstraZeneca PLC | 股票-醫療保健 | 2.19% | -0.42% | — | |
| 25 | MU | Micron Technology Inc | 股票-科技 | 2.14% | +3.78% | +1949.77% | |
| 26 | RY | Royal Bank Of Canada | 股票-金融 | 2.10% | +0.12% | — | |
| 27 | KEYS | Keysight Technologies In | 股票-科技 | 1.86% | +0.04% | — | |
| 28 | MSFT | Microsoft CORP | 股票-科技 | 1.45% | -0.23% | -59.85% | |
| 29 | PLTR | Palantir Technologies Inc-a | 股票-科技 | 1.43% | -1.37% | -61.92% | |
| 30 | PG | Procter & Gamble Co/the | 股票-非循環性消費 | 1.27% | -0.22% | +0.36% | |
| 31 | BCS | Barclays Plc-spons Adr | 股票-金融 | 1.05% | +1.01% | -49.43% | |
| 32 | FICO | Fair Isaac CORP | 股票-科技 | 0.53% | +0.01% | +239.65% | |
| 33 | IBIT | Ishares Bitcoin Trust ETF | ETF-加密貨幣 | 0.44% | -0.44% | EXIT | |
| 34 | GOOG | Alphabet Inc-cl C | 股票-通訊服務 | 0.39% | -0.01% | +16.65% | |
| 35 | BRK-B | Berkshire Hathaway Inc-cl B | 股票-其他 | 0.33% | -0.05% | -1.14% | |
| 36 | PANW | Palo Alto Networks Inc | 股票-科技 | 0.32% | +0.06% | +157.08% | |
| 37 | MCD | Mcdonald's CORP | 股票-循環性消費 | 0.28% | -0.17% | -16.70% | |
| 38 | TSLA | Tesla Inc | 股票-循環性消費 | 0.27% | -0.01% | -3.22% | |
| 39 | SCHW | Schwab (charles) CORP | 股票-金融 | 0.25% | -0.05% | +45.87% | |
| 40 | ANET | Arista Networks Inc | 股票-科技 | 0.25% | +0.03% | — | |
| 41 | XOM | Exxon Mobil CORP | 股票-能源 | 0.24% | -0.10% | +3.08% | |
| 42 | WFC | Wells Fargo & Co | 股票-金融 | 0.22% | -0.03% | +136.23% | |
| 43 | BRK-A | Berkshire Hathaway Inc-cl A | 股票-其他 | 0.21% | -0.03% | — | |
| 44 | CVX | Chevron CORP | 股票-能源 | 0.20% | -0.07% | +77.01% | |
| 45 | ADSK | Autodesk Inc | 股票-科技 | 0.20% | -0.07% | +0.78% | |
| 46 | IXUS | Ishares Core Intl Stock ETF | ETF-其他 | 0.19% | -0.01% | +22.20% | |
| 47 | V | Visa Inc-class A Shares | 股票-金融 | 0.18% | -0.03% | -94.11% | |
| 48 | LLY | Eli Lilly & Co | 股票-醫療保健 | 0.16% | — | +104.93% | |
| 49 | URTH | Ishares Msci World ETF | ETF-其他 | 0.15% | -0.02% | -2.62% | |
| 50 | ABBV | Abbvie Inc | 股票-醫療保健 | 0.13% | -0.01% | +9.65% |
| # | 代號 | 標的名稱 | 佔比變動 | 持倉量變化 | 異動類型 |
|---|---|---|---|---|---|
| 1 | MU | Micron Technology Inc | +2.1% | +1949.77% | 加碼 |
| 2 | XBI | Ss Spdr S&p Biotech ETF | +1.7% | +57.40% | 加碼 |
| 3 | AAPL | Apple Inc | +1.4% | +38.72% | 加碼 |
| 4 | ASML | ASML Holding N.V. | +0.7% | +3.91% | 加碼 |
| 5 | GEV | GE Vernova Inc | +0.7% | +3.11% | 加碼 |
| 6 | EWY | Ishares Msci South Korea ETF | +0.6% | +1.80% | 加碼 |
| 7 | TSM | Taiwan Semiconductor-sp Adr | +0.6% | +2.30% | 加碼 |
| 8 | CAT | Caterpillar Inc | +0.6% | +2.60% | 加碼 |
| 9 | JNJ | Johnson & Johnson | +0.5% | +4.22% | 加碼 |
| 10 | CCJ | Cameco CORP | +0.5% | +1.89% | 加碼 |
| 11 | WMT | Walmart Inc | +0.3% | +1.91% | 加碼 |
| 12 | FICO | Fair Isaac CORP | +0.3% | +239.65% | 加碼 |
| 13 | GLDM | Spdr Gold Minishares Trust | +0.3% | +1.54% | 加碼 |
| 14 | MCK | Mckesson CORP | +0.3% | +0.61% | 加碼 |
| 15 | ISCF | Ishares International Small | +0.2% | +2.66% | 加碼 |
| 16 | PANW | Palo Alto Networks Inc | +0.2% | +157.08% | 加碼 |
| 17 | CVX | Chevron CORP | +0.1% | +77.01% | 加碼 |
| 18 | WFC | Wells Fargo & Co | +0.1% | +136.23% | 加碼 |
| 19 | XOM | Exxon Mobil CORP | +0.1% | +3.08% | 加碼 |
| 20 | SCHW | Schwab (charles) CORP | +0.1% | +45.87% | 加碼 |
| 21 | LLY | Eli Lilly & Co | +0.1% | +104.93% | 加碼 |
| 22 | IVV | Ishares Core S&p 500 ETF | +0.1% | +102.70% | 加碼 |
| 23 | IXUS | Ishares Core Intl Stock ETF | 0% | +22.20% | 加碼 |
| 24 | GLD | Spdr Gold Shares | 0% | +162.12% | 加碼 |
| 25 | VOO | Vanguard S&p 500 ETF | 0% | +159.65% | 加碼 |
| 26 | UNP | Union Pacific CORP | 0% | +76.30% | 加碼 |
| 27 | GOOG | Alphabet Inc-cl C | 0% | +16.65% | 加碼 |
| 28 | PG | Procter & Gamble Co/the | 0% | +0.36% | 加碼 |
| 29 | DIA | Ss Spdr Dow Jones Indus Avg | 0% | +134.69% | 加碼 |
| 30 | TXN | Texas Instruments Inc | 0% | +91.48% | 加碼 |
| 31 | MRK | Merck & Co. Inc. | 0% | +22.32% | 加碼 |
| 32 | SPY | Ss Spdr S&p 500 ETF Trust-us | 0% | +22.53% | 加碼 |
| 33 | PEP | Pepsico Inc | 0% | +75.90% | 加碼 |
| 34 | T | At&t Inc | 0% | +45.13% | 加碼 |
| 35 | QQQ | Invesco Qqq Trust Series 1 | 0% | +31.52% | 加碼 |
| 36 | CW | Curtiss-wright CORP | 0% | +10.36% | 加碼 |
| 37 | LRCX | Lam Research CORP | 0% | +30.45% | 加碼 |
| 38 | RTX | Rtx CORP | 0% | +10.37% | 加碼 |
| 39 | ADI | Analog Devices Inc | 0% | +19.47% | 加碼 |
| 40 | SCHI | Schwab 5-10 Year Corporate B | 0% | +15.15% | 加碼 |
| 41 | CL | Colgate-palmolive Co | 0% | +13.09% | 加碼 |
| 42 | ABBV | Abbvie Inc | 0% | +9.65% | 加碼 |
| 43 | C | Citigroup Inc | 0% | +16.58% | 加碼 |
| 44 | CLX | Clorox Company | 0% | +4.52% | 加碼 |
| 45 | TJX | Tjx Companies Inc | 0% | +22.78% | 加碼 |
| 46 | ISTB | Ishares Core 1-5 Year Usd Bo | 0% | +5.69% | 加碼 |
| 47 | CSCO | Cisco Systems Inc | 0% | +3.85% | 加碼 |
| 48 | HSBC | Hsbc Holdings Plc-spons Adr | 0% | +0.48% | 加碼 |
| 49 | INTC | Intel CORP | 0% | -13.83% | 減碼 |
| 50 | MMM | 3m Co | — | -2.35% | 減碼 |
根據 SEC 官方 Form 13F 申報備案，Main Street Research LLC 在 Q1 2026 季度的美股持倉總市值約為 US$21.2億，共申報了 148 個公開持股部位。
在 Q1 2026 季度，Main Street Research LLC 按市值排列的前三大核心持股分別為：NVDA (6.3%)、AAPL (6.0%)、GOOGL (5.2%)。其中最大持股部位 NVDA 佔據整體投資組合約 6.3% 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
GLW
市值: US$5271.8萬
本季最大獲利了結 / 清倉標的
AZNN
前期市值: US$3412.6萬
在 Q1 2026 季度中，Main Street Research LLC 共進行了 154 項持倉異動，包含新建倉 31 個部位、加碼 75 個部位、減碼 36 個部位以及清倉 12 個部位。 其中最大新建倉標的為 GLW。 本季清倉部位包含 AZNN。
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。