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: 0000061227
申報總市值
US$29.9億
US$29.9億
111 檔
16.2%
在 Q1 2026 申報期間，Mackay Shields LLC（CIK: 0000061227）向美國 SEC 提交的 Form 13F 報告顯示，其追蹤之股票投資組合總市值達 US$29.9億，共持有 111 個公開申報部位。
從 Q1 2026 申報觀察，Mackay Shields LLC 採取防禦導向的調倉策略，本季減碼 55 檔個股並出清 28 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 LITE 0.5 06-15-28, WDC 3 11-15-28, AEIS 2.5 09-15-28）累計市值佔比達 16.2%，是驅動 Mackay Shields 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 | LITE 0.5 06-15-28債券 | Lumentum Holdings Inc | 債券 | 5.26% | -2.44% | -10.82% | |
| 2 | WDC 3 11-15-28債券 | Western Digital CORP | 債券 | 4.06% | +0.99% | -18.04% | |
| 3 | AEIS 2.5 09-15-28債券 | Advanced Energy Ind | 債券 | 3.50% | -3.06% | -11.19% | |
| 4 | MIRM 4 05-01-29債券 | Mirum Pharmaceuticals | 債券 | 2.53% | -2.29% | -9.71% | |
| 5 | QXO 5.5 05-15-28債券 | Qxo Inc | 債券 | 2.39% | -0.47% | -0.07% | |
| 6 | LNTH 2.625 12-15-27債券 | Lantheus Holdings Inc | 債券 | 2.24% | +0.24% | -10.26% | |
| 7 | MKSI 1.25 06-01-30債券 | Mks Inc | 債券 | 2.21% | +1.39% | -0.10% | |
| 8 | CABO 1.125 03-15-28債券 | Cable One Inc | 債券 | 2.14% | -0.17% | +11.47% | |
| 9 | TTEK 2.25 08-15-28債券 | Tetra Tech Inc | 債券 | 2.10% | -0.25% | -8.56% | |
| 10 | UBER 0.875 12-01-28 2028債券 | Uber Technologies Inc | 債券 | 2.00% | -0.18% | +6.35% | |
| 11 | BA 6 10-15-27債券 | Boeing Co/the | 債券 | 1.98% | -0.10% | -0.08% | |
| 12 | ON 0 05-01-27債券 | On Semiconductor CORP | 債券 | 1.86% | -0.52% | -0.53% | |
| 13 | PCG 4.25 12-01-27債券 | Pg&e CORP | 債券 | 1.76% | -0.17% | -9.85% | |
| 14 | POST 2.5 08-15-27債券 | Post Holdings Inc | 債券 | 1.60% | -0.20% | -18.75% | |
| 15 | ITGR 1.875 03-15-30債券 | Integer Holdings CORP | 債券 | 1.59% | -0.12% | — | |
| 16 | APO 6.75 07-31-26債券 | Apollo Global Management | 債券 | 1.54% | -0.08% | -0.07% | |
| 17 | FWONK 2.25 08-15-27債券 | Liberty Media CORP | 債券 | 1.44% | -0.03% | -0.19% | |
| 18 | AKAM 0.375 09-01-27債券 | Akamai Technologies Inc | 債券 | 1.44% | -0.07% | -0.12% | |
| 19 | HPE 7.625 09-01-27債券 | Hp Enterprise Co | 債券 | 1.43% | +0.92% | +0.67% | |
| 20 | SNOW 0 10-01-27債券 | Snowflake Inc | 債券 | 1.41% | +0.40% | +9.10% | |
| 21 | NCLH 1.125 02-15-27債券 | Ncl Corporation LTD | 債券 | 1.39% | -1.39% | EXIT | |
| 22 | BBIO 2.25 02-01-29債券 | Bridgebio Pharma Inc | 債券 | 1.37% | -0.13% | +16.17% | |
| 23 | NOG 3.625 04-15-29債券 | Northern Oil & Gas Inc | 債券 | 1.34% | -0.27% | +10.90% | |
| 24 | FRPT 3 04-01-28債券 | Freshpet Inc | 債券 | 1.34% | -0.10% | +48.92% | |
| 25 | IRTC 1.5 09-01-29債券 | Irhythm Holdings Inc | 債券 | 1.31% | -0.11% | -0.16% | |
| 26 | BTT | Blackrock 2030 Muni Trgt Trm | 股票-其他 | 1.30% | +0.20% | +14.82% | |
| 27 | CHEF 2.375 12-15-28債券 | Chefs' Warehouse THE | 債券 | 1.29% | +0.49% | -0.15% | |
| 28 | IAU | Ishares Gold Trust | ETF-避險與商品 | 1.26% | -0.43% | -17.86% | |
| 29 | MCHP 7.5 03-15-28債券 | Microchip Technology Inc | 債券 | 1.26% | +0.30% | -0.07% | |
| 30 | BURL 1.25 12-15-27債券 | Burlington Stores Inc | 債券 | 1.24% | -0.30% | — | |
| 31 | PATK 1.75 12-01-28債券 | Patrick Industries Inc | 債券 | 1.22% | -0.27% | -9.51% | |
| 32 | DDOG 0 12-01-29債券 | Datadog Inc | 債券 | 1.20% | +0.11% | — | |
| 33 | FLR 1.125 08-15-29債券 | Fluor CORP | 債券 | 1.19% | -0.03% | +0.05% | |
| 34 | LYV 2.875 01-15-30債券 | Live Nation Entertainmen | 債券 | 1.18% | +0.01% | +0.18% | |
| 35 | ETSY 0.125 10-01-26債券 | Etsy Inc | 債券 | 1.17% | +0.53% | -11.63% | |
| 36 | STX 3.5 06-01-28債券 | Seagate Hdd Cayman | 債券 | 1.16% | -1.16% | EXIT | |
| 37 | ORCL 6.5 01-15-29 D債券 | Oracle CORP | 債券 | 1.09% | -0.11% | — | |
| 38 | DXCM 0.375 05-15-28債券 | Dexcom Inc | 債券 | 1.01% | -0.31% | -18.81% | |
| 39 | MTH 1.75 05-15-28債券 | Meritage Homes CORP | 債券 | 1.00% | -0.03% | -22.67% | |
| 40 | U 0 03-15-30債券 | Unity Software Inc | 債券 | 0.98% | +0.04% | — | |
| 41 | NTNX 0.5 12-15-29債券 | Nutanix Inc | 債券 | 0.98% | -0.43% | +0.12% | |
| 42 | NEE 7.299 06-01-27債券 | Nextera Energy Inc | 債券 | 0.98% | +0.71% | +2.07% | |
| 43 | PTON 5.5 12-01-29債券 | Peloton Interactive Inc | 債券 | 0.95% | +0.22% | — | |
| 44 | PSN 2.625 03-01-29債券 | Parsons CORP | 債券 | 0.95% | -0.09% | — | |
| 45 | BMRN 1.25 05-15-27債券 | Biomarin Pharmaceutical | 債券 | 0.94% | -0.08% | -23.53% | |
| 46 | PRGS 3.5 03-01-30債券 | Progress Software CORP | 債券 | 0.94% | -0.02% | +0.18% | |
| 47 | SIRI 3.75 03-15-28債券 | Sirius Xm Holdings | 債券 | 0.93% | +0.01% | -17.30% | |
| 48 | AFRM 0.75 12-15-29債券 | Affirm Holdings Inc | 債券 | 0.93% | +0.13% | +11.92% | |
| 49 | NINE | Nine Energy Service Inc | 股票-其他 | 0.92% | +0.39% | — | |
| 50 | GWRE 1.25 11-01-29債券 | Guidewire Software Inc | 債券 | 0.92% | -0.12% | — |
| # | 代號 | 標的名稱 | 佔比變動 | 持倉量變化 | 異動類型 |
|---|---|---|---|---|---|
| 1 | LITE 0.5 06-15-28債券 | Lumentum Holdings Inc | +2.3% | -10.82% | 減碼 |
| 2 | WDC 3 11-15-28債券 | Western Digital CORP | +1% | -18.04% | 減碼 |
| 3 | AEIS 2.5 09-15-28債券 | Advanced Energy Ind | +0.9% | -11.19% | 減碼 |
| 4 | MKSI 1.25 06-01-30債券 | Mks Inc | +0.6% | -0.10% | 減碼 |
| 5 | MQY | Blackrock Muniyield Quality | +0.5% | +345.46% | 加碼 |
| 6 | FRPT 3 04-01-28債券 | Freshpet Inc | +0.5% | +48.92% | 加碼 |
| 7 | MYN | Blackrock Muniyield Ny Qlty | +0.4% | +100.11% | 加碼 |
| 8 | NOG 3.625 04-15-29債券 | Northern Oil & Gas Inc | +0.3% | +10.90% | 加碼 |
| 9 | AKAM 0.375 09-01-27債券 | Akamai Technologies Inc | +0.3% | -0.12% | 減碼 |
| 10 | BBIO 2.25 02-01-29債券 | Bridgebio Pharma Inc | +0.2% | +16.17% | 加碼 |
| 11 | ON 0 05-01-27債券 | On Semiconductor CORP | +0.2% | -0.53% | 減碼 |
| 12 | MIRM 4 05-01-29債券 | Mirum Pharmaceuticals | +0.2% | -9.71% | 減碼 |
| 13 | BTT | Blackrock 2030 Muni Trgt Trm | +0.2% | +14.82% | 加碼 |
| 14 | BURL 1.25 12-15-27債券 | Burlington Stores Inc | +0.2% | — | 不變 |
| 15 | CABO 1.125 03-15-28債券 | Cable One Inc | +0.2% | +11.47% | 加碼 |
| 16 | NEE 7.299 06-01-27債券 | Nextera Energy Inc | +0.1% | +2.07% | 加碼 |
| 17 | FLR 1.125 08-15-29債券 | Fluor CORP | +0.1% | +0.05% | 加碼 |
| 18 | QXO 5.5 05-15-28債券 | Qxo Inc | +0.1% | -0.07% | 減碼 |
| 19 | AVAV 0 07-15-30債券 | Aerovironment Inc | +0.1% | +29.48% | 加碼 |
| 20 | GBX 2.875 04-15-28債券 | Greenbrier Cos Inc | +0.1% | — | 不變 |
| 21 | LYV 2.875 01-15-30債券 | Live Nation Entertainmen | +0.1% | +0.18% | 加碼 |
| 22 | UBER 0.875 12-01-28 2028債券 | Uber Technologies Inc | +0.1% | +6.35% | 加碼 |
| 23 | JAZZ 2 06-15-26債券 | Jazz Investments I LTD | +0.1% | — | 不變 |
| 24 | HPE 7.625 09-01-27債券 | Hp Enterprise Co | 0% | +0.67% | 加碼 |
| 25 | NCLH 1.125 02-15-27債券 | Ncl Corporation LTD | 0% | — | 不變 |
| 26 | MCHP 7.5 03-15-28債券 | Microchip Technology Inc | 0% | -0.07% | 減碼 |
| 27 | GLD | Spdr Gold Shares | 0% | — | 不變 |
| 28 | SPB 3.375 06-01-29債券 | Spectrum Brands Inc | 0% | — | 不變 |
| 29 | CAKE 0.375 06-15-26債券 | Cheesecake Factory (the) | 0% | -0.41% | 減碼 |
| 30 | CHEF 2.375 12-15-28債券 | Chefs' Warehouse THE | 0% | -0.15% | 減碼 |
| 31 | DDOG 0 12-01-29債券 | Datadog Inc | 0% | — | 不變 |
| 32 | ITGR 2.125 02-15-28債券 | Integer Holdings CORP | 0% | +3.19% | 加碼 |
| 33 | SO 4.5 06-15-27債券 | Southern Co | 0% | +0.75% | 加碼 |
| 34 | WEC 4.375 06-01-29債券 | Wec Energy Group Inc | 0% | -1.27% | 減碼 |
| 35 | OSIS 2.25 08-01-29債券 | Osi Systems Inc | 0% | +0.07% | 加碼 |
| 36 | LYV 3.125 01-15-29債券 | Live Nation Entertainmen | 0% | -1.32% | 減碼 |
| 37 | MIY | Blackrock Muniyield Mi Qlty | 0% | -0.88% | 減碼 |
| 38 | MGPI 1.875 11-15-41債券 | Mgp Ingredients Inc | 0% | +0.46% | 加碼 |
| 39 | PSN 2.625 03-01-29債券 | Parsons CORP | 0% | — | 不變 |
| 40 | SYNA 0.75 12-01-31債券 | Synaptics Inc | 0% | — | 不變 |
| 41 | VFL | Abrdn National Municipal Inc | 0% | — | 不變 |
| 42 | NET 0 08-15-26債券 | Cloudflare Inc | 0% | -0.61% | 減碼 |
| 43 | MFM | Aberdeen Municipal Income | 0% | -1.91% | 減碼 |
| 44 | HALO 0.25 03-01-27債券 | Halozyme Therapeutics In | 0% | +3.38% | 加碼 |
| 45 | IONS 1.75 06-15-28債券 | Ionis Pharmaceuticals In | — | — | 不變 |
| 46 | WK 1.25 08-15-28債券 | Workiva Inc | — | — | 不變 |
| 47 | WFC 7.5 PERP L債券 | Wells Fargo & Company | — | -0.07% | 減碼 |
| 48 | BILL 0 04-01-30債券 | Bill Holdings Inc | — | — | 不變 |
| 49 | WBD | Warner Bros Discovery Inc | — | — | 不變 |
| 50 | WW | Ww International Inc-new | — | — | 不變 |
根據 SEC 官方 Form 13F 申報備案，Mackay Shields LLC 在 Q1 2026 季度的美股持倉總市值約為 US$29.9億，共申報了 111 個公開持股部位。
在 Q1 2026 季度，Mackay Shields LLC 按市值排列的前三大核心持股分別為：LITE 0.5 06-15-28 (5.3%)、WDC 3 11-15-28 (4.1%)、AEIS 2.5 09-15-28 (3.5%)。其中最大持股部位 LITE 0.5 06-15-28 佔據整體投資組合約 5.3% 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
ITGR 1.875 03-15-30
市值: US$4328.5萬
本季最大獲利了結 / 清倉標的
F 0 03-15-26
前期市值: US$3131.5萬
在 Q1 2026 季度中，Mackay Shields LLC 共進行了 117 項持倉異動，包含新建倉 7 個部位、加碼 27 個部位、減碼 55 個部位以及清倉 28 個部位。 其中最大新建倉標的為 ITGR 1.875 03-15-30。 本季清倉部位包含 F 0 03-15-26。
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。