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: 0000919538
申報總市值
US$3.5億
US$3.5億
63 檔
25.1%
Corbyn Investment Management Inc/md 在 Q2 2025 季度的美股部位總計估值為 US$3.5億，分散於 63 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，Corbyn Investment Management Inc/md 採取防禦導向的調倉策略，本季減碼 27 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 RSG, , BXMT 5.5 03-15-27）累計市值佔比達 25.1%，是驅動 Corbyn Investment Management Inc/md 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 | RSG | Republic Services Inc | 股票-工業 | 7.37% | -0.99% | -6.07% | |
| 2 | ✓ | 股票-其他 | 6.74% | — | -3.24% | ||
| 3 | BXMT 5.5 03-15-27債券 | Blackstone Mortgage Tr | 債券 | 5.12% | -0.60% | +26.75% | |
| 4 | FUBO 3.25 02-15-26債券 | Fubotv Inc | 債券 | 5.05% | — | +107.05% | |
| 5 | ✓ | 股票-其他 | 4.90% | — | -2.67% | ||
| 6 | PEB 1.75 12-15-26債券 | Pebblebrook Hotel Trust | 債券 | 4.62% | -0.59% | +3.89% | |
| 7 | ✓ | 股票-其他 | 4.60% | — | -0.95% | ||
| 8 | PRMB | Primo Brands CORP | 股票-非循環性消費 | 3.65% | +0.30% | -0.33% | |
| 9 | PMT 5.5 03-15-26債券 | Pennymac CORP | 債券 | 3.47% | — | +2947.23% | |
| 10 | ✓ | 股票-其他 | 3.41% | — | -0.91% | ||
| 11 | RDFN 0.5 04-01-27債券 | Redfin CORP | 債券 | 3.31% | -0.50% | — | |
| 12 | WRB | Wr Berkley CORP | 股票-金融 | 3.21% | -0.22% | -1.12% | |
| 13 | GOOG | Alphabet Inc-cl C | 股票-通訊服務 | 2.86% | +0.28% | -1.89% | |
| 14 | SNAP 0 05-01-27債券 | Snap Inc | 債券 | 2.12% | -0.29% | -1.95% | |
| 15 | ✓ | 股票-其他 | 1.98% | — | -0.40% | ||
| 16 | DOCN 0 12-01-26債券 | Digitalocean Holdings | 債券 | 1.75% | -0.17% | EXIT | |
| 17 | ✓ | Alight Inc Com Cl A | 股票-其他 | 1.73% | — | +7.65% | |
| 18 | ✓ | 股票-其他 | 1.67% | — | -0.75% | ||
| 19 | TMUS | T-mobile US Inc | 股票-通訊服務 | 1.61% | -0.45% | -13.95% | |
| 20 | ✓ | 股票-其他 | 1.57% | — | -3.09% | ||
| 21 | AMZN | Amazon.com Inc | 股票-循環性消費 | 1.56% | -0.02% | -1.61% | |
| 22 | ✓ | 股票-其他 | 1.54% | — | -0.54% | ||
| 23 | ✓ | 股票-其他 | 1.45% | — | -2.55% | ||
| 24 | ✓ | 股票-其他 | 1.38% | — | +19.00% | ||
| 25 | CB | Chubb Limited | 股票-金融 | 1.33% | -0.13% | -11.97% | |
| 26 | ✓ | 股票-其他 | 1.26% | — | — | ||
| 27 | ✓ | 股票-其他 | 1.24% | — | +3.49% | ||
| 28 | ✓ | 股票-其他 | 1.22% | — | -0.31% | ||
| 29 | ✓ | 股票-其他 | 1.21% | — | -0.83% | ||
| 30 | EMR | Emerson Electric Co | 股票-工業 | 1.21% | -0.06% | +0.18% | |
| 31 | DOX | Amdocs Limited | 股票-科技 | 1.18% | -0.37% | -1.34% | |
| 32 | MDT | Medtronic plc | 股票-醫療保健 | 1.13% | -0.23% | -4.88% | |
| 33 | ✓ | 股票-其他 | 1.07% | — | +11.41% | ||
| 34 | ✓ | 股票-其他 | 1.06% | — | -5.19% | ||
| 35 | ✓ | 股票-其他 | 1.01% | — | +1.77% | ||
| 36 | SHBI | Shore Bancshares Inc | 股票-其他 | 0.83% | -0.12% | -0.07% | |
| 37 | TFX | Teleflex Inc | 股票-醫療保健 | 0.70% | — | -11.21% | |
| 38 | ✓ | 股票-其他 | 0.67% | — | +0.27% | ||
| 39 | USFD | US Foods Holding CORP | 股票-非循環性消費 | 0.64% | +0.67% | — | |
| 40 | ✓ | 股票-其他 | 0.62% | — | +2.38% | ||
| 41 | WSFS | Wsfs Financial CORP | 股票-其他 | 0.62% | +0.01% | -0.21% | |
| 42 | MTX | Minerals Technologies Inc | 股票-其他 | 0.56% | -0.07% | — | |
| 43 | NVT | nVent Electric plc | 股票-工業 | 0.56% | +0.22% | — | |
| 44 | SHW | Sherwin-williams Co/the | 股票-原物料 | 0.50% | -0.03% | -0.93% | |
| 45 | RUSHA | Rush Enterprises Inc-cl A | 股票-循環性消費 | 0.49% | -0.03% | +0.92% | |
| 46 | UPS | United Parcel Service-cl B | 股票-工業 | 0.48% | -0.02% | -2.49% | |
| 47 | ABT | Abbott Laboratories | 股票-醫療保健 | 0.47% | +0.27% | -8.78% | |
| 48 | ✓ | 股票-其他 | 0.45% | — | +2.19% | ||
| 49 | ✓ | 股票-其他 | 0.38% | — | — | ||
| 50 | RUSHB | Rush Enterprises Inc - Cl B | 股票-其他 | 0.31% | +0.01% | — |
| # | 代號 | 標的名稱 | 佔比變動 | 持倉量變化 | 異動類型 |
|---|---|---|---|---|---|
| 1 | PMT 5.5 03-15-26債券 | Pennymac CORP | +3.3% | +2947.23% | 加碼 |
| 2 | RDFN 0.5 04-01-27債券 | Redfin CORP | +3.3% | NEW | 新建倉 |
| 3 | FUBO 3.25 02-15-26債券 | Fubotv Inc | +2.4% | +107.05% | 加碼 |
| 4 | MYRG | Myr Group Inc/delaware | +1.4% | — | 減碼 |
| 5 | EME | Emcor Group Inc | +1.4% | — | 減碼 |
| 6 | BXMT 5.5 03-15-27債券 | Blackstone Mortgage Tr | +0.7% | +26.75% | 加碼 |
| 7 | JNJ | Johnson & Johnson | +0.5% | — | 減碼 |
| 8 | FLEX | Flex Ltd. | +0.3% | — | 不變 |
| 9 | NXT | Nextpower Inc-cl A | +0.2% | — | 減碼 |
| 10 | ROP | Roper Technologies Inc | +0.2% | NEW | 新建倉 |
| 11 | NVT | nVent Electric plc | +0.1% | — | 不變 |
| 12 | EMR | Emerson Electric Co | +0.1% | +0.18% | 加碼 |
| 13 | LEVI | Levi Strauss & Co- Class A | +0.1% | — | 減碼 |
| 14 | P | Everpure Inc-a | +0.1% | — | 加碼 |
| 15 | AMZN | Amazon.com Inc | 0% | -1.61% | 減碼 |
| 16 | BLKB | Blackbaud Inc | 0% | — | 加碼 |
| 17 | SHBI | Shore Bancshares Inc | 0% | -0.07% | 減碼 |
| 18 | USFD | US Foods Holding CORP | 0% | — | 不變 |
| 19 | AVGO | Broadcom Inc | 0% | — | 不變 |
| 20 | GOOG | Alphabet Inc-cl C | 0% | -1.89% | 減碼 |
| 21 | CDRE | Cadre Holdings Inc | 0% | — | 加碼 |
| 22 | WMS | Advanced Drainage Systems In | 0% | — | 加碼 |
| 23 | WSFS | Wsfs Financial CORP | 0% | -0.21% | 減碼 |
| 24 | FRST | Primis Financial CORP | -0.1% | — | 減碼 |
| 25 | ABT | Abbott Laboratories | -0.1% | -8.78% | 減碼 |
| 26 | SHLS | Shoals Technologies Group -a | -0.1% | — | 減碼 |
| 27 | UPS | United Parcel Service-cl B | -0.1% | -2.49% | 減碼 |
| 28 | ALIT | Alight Inc - Class A | -0.1% | — | 加碼 |
| 29 | DAR | Darling Ingredients Inc | -0.1% | -45.12% | 減碼 |
| 30 | WH | Wyndham Hotels & Resorts Inc | -0.2% | — | 加碼 |
| 31 | MTX | Minerals Technologies Inc | -0.2% | — | 不變 |
| 32 | NEE | Nextera Energy Inc | -0.2% | — | 減碼 |
| 33 | AMH | American Homes 4 Rent- A | -0.2% | — | 減碼 |
| 34 | ZD | Ziff Davis Inc | -0.2% | — | 加碼 |
| 35 | MDT | Medtronic plc | -0.2% | -4.88% | 減碼 |
| 36 | PEB 1.75 12-15-26債券 | Pebblebrook Hotel Trust | -0.3% | +3.89% | 加碼 |
| 37 | WRB | Wr Berkley CORP | -0.3% | -1.12% | 減碼 |
| 38 | TAN | Invesco Solar ETF | -0.3% | EXIT | 清倉 |
| 39 | KVUE | Kenvue Inc | -0.3% | — | 加碼 |
| 40 | TFX | Teleflex Inc | -0.3% | -11.21% | 減碼 |
| 41 | EOG | Eog Resources Inc | -0.3% | — | 減碼 |
| 42 | ZBH | Zimmer Biomet Holdings Inc | -0.4% | — | 加碼 |
| 43 | CB | Chubb Limited | -0.4% | -11.97% | 減碼 |
| 44 | 6D8 | Dupont De Nemours Inc | -0.4% | — | 減碼 |
| 45 | TMUS | T-mobile US Inc | -0.7% | -13.95% | 減碼 |
| 46 | KBR | Kbr Inc | -0.8% | — | 減碼 |
| 47 | DNB | Dun & Bradstreet Holdings In | -1.2% | EXIT | 清倉 |
| 48 | RSG | Republic Services Inc | -1.2% | -6.07% | 減碼 |
| 49 | PRMB | Primo Brands CORP | -1.2% | -0.33% | 減碼 |
| 50 | DOCN 0 12-01-26債券 | Digitalocean Holdings | -3.7% | -64.39% | 減碼 |
根據 SEC 官方 Form 13F 申報備案，Corbyn Investment Management Inc/md 在 Q2 2025 季度的美股持倉總市值約為 US$3.5億，共申報了 63 個公開持股部位。
在 Q2 2025 季度，Corbyn Investment Management Inc/md 按市值排列的前三大核心持股分別為：RSG (7.4%)、 (6.7%)、BXMT 5.5 03-15-27 (5.1%)。其中最大持股部位 RSG 佔據整體投資組合約 7.4% 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
RDFN 0.5 04-01-27
市值: US$985.3萬
本季最大獲利了結 / 清倉標的
DNB
前期市值: US$309.5萬
在 Q2 2025 季度中，Corbyn Investment Management Inc/md 共進行了 45 項持倉異動，包含新建倉 2 個部位、加碼 14 個部位、減碼 27 個部位以及清倉 2 個部位。 其中最大新建倉標的為 RDFN 0.5 04-01-27。 本季清倉部位包含 DNB。
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。