13F GuideFiling Basics
What is SEC Form 13F? Ultimate Guide to Institutional Equity Filings
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
AlphaSMO Research GuideRead Guide
CIK: 0000061227
Total reported value
$3.0B
$3.0B
145 檔
11.2%
The Q2 2025 SEC filing reveals that Mackay Shields LLC held a total portfolio value of $3.0B, covering 145 public equity positions.
In Q2 2025, Mackay Shields LLC adopted a defensive or profit-taking posture, trimming 68 positions and completely liquidating 10 holdings to manage risk exposure.
In terms of portfolio concentration, the top 5 core holdings (including TTEK 2.25 08-15-28, LNTH 2.625 12-15-27, POST 2.5 08-15-27) accounted for 11.2% of total reported equity market value during Q2 2025.
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | TTEK 2.25 08-15-28Bond | Tetra Tech Inc | Bond | 2.33% | -0.25% | -0.31% | |
| 2 | LNTH 2.625 12-15-27Bond | Lantheus Holdings Inc | Bond | 2.28% | +0.24% | -0.34% | |
| 3 | POST 2.5 08-15-27Bond | Post Holdings Inc | Bond | 2.14% | -0.20% | -0.36% | |
| 4 | UBER 0.875 12-01-28 2028Bond | Uber Technologies Inc | Bond | 1.98% | -0.18% | -0.46% | |
| 5 | PCG 4.25 12-01-27Bond | Pg&e CORP | Bond | 1.93% | -0.17% | -0.43% | |
| 6 | BA 6 10-15-27Bond | Boeing Co/the | Bond | 1.85% | -0.10% | +35.95% | |
| 7 | NTNX 0.25 10-01-27Bond | Nutanix Inc | Bond | 1.85% | — | -0.44% | |
| 8 | NICEIT 0 09-15-25Bond | Nice LTD | Bond | 1.84% | — | -1.31% | |
| 9 | QXO 5.5 05-15-28Bond | Qxo Inc | Bond | 1.81% | -0.47% | — | |
| 10 | APO 6.75 07-31-26Bond | Apollo Global Management | Bond | 1.75% | -0.08% | -0.52% | |
| 11 | AEIS 2.5 09-15-28Bond | Advanced Energy Ind | Bond | 1.75% | -3.06% | -0.52% | |
| 12 | STX 3.5 06-01-28Bond | Seagate Hdd Cayman | Bond | 1.74% | -1.16% | EXIT | |
| 13 | CHEF 2.375 12-15-28Bond | Chefs' Warehouse THE | Bond | 1.73% | +0.49% | -0.60% | |
| 14 | ON 0 05-01-27Bond | On Semiconductor CORP | Bond | 1.72% | -0.52% | — | |
| 15 | HALO 1 08-15-28Bond | Halozyme Therapeutics In | Bond | 1.59% | — | -0.51% | |
| 16 | MIRM 4 05-01-29Bond | Mirum Pharmaceuticals | Bond | 1.59% | -2.29% | -0.26% | |
| 17 | CABO 1.125 03-15-28Bond | Cable One Inc | Bond | 1.54% | -0.17% | +17.42% | |
| 18 | NEE 6.926 09-01-25Bond | Nextera Energy Inc | Bond | 1.54% | — | -0.68% | |
| 19 | FWONK 2.25 08-15-27Bond | Liberty Media CORP | Bond | 1.48% | -0.03% | -0.59% | |
| 20 | XNEAX | Nuveen Amt-fr Qlty Muni Inc | Stock-Other | 1.40% | — | — | |
| 21 | PATK 1.75 12-01-28Bond | Patrick Industries Inc | Bond | 1.40% | -0.27% | -0.70% | |
| 22 | FOUR 0.5 08-01-27Bond | Shift4 Payments Inc | Bond | 1.38% | -0.06% | — | |
| 23 | AKAM 0.375 09-01-27Bond | Akamai Technologies Inc | Bond | 1.37% | -0.07% | -0.50% | |
| 24 | BMRN 1.25 05-15-27Bond | Biomarin Pharmaceutical | Bond | 1.34% | -0.08% | -19.36% | |
| 25 | MCHP 7.5 03-15-28Bond | Microchip Technology Inc | Bond | 1.31% | +0.30% | +20.44% | |
| 26 | IRTC 1.5 09-01-29Bond | Irhythm Holdings Inc | Bond | 1.27% | -0.11% | +65.39% | |
| 27 | NCLH 1.125 02-15-27Bond | Ncl Corporation LTD | Bond | 1.24% | -1.39% | EXIT | |
| 28 | TYL 0.25 03-15-26Bond | Tyler Technologies Inc | Bond | 1.23% | — | — | |
| 29 | MKSI 1.25 06-01-30Bond | Mks Inc | Bond | 1.18% | +1.39% | — | |
| 30 | ETSY 0.125 10-01-26Bond | Etsy Inc | Bond | 1.17% | +0.53% | -0.31% | |
| 31 | MTH 1.75 05-15-28Bond | Meritage Homes CORP | Bond | 1.16% | -0.03% | — | |
| 32 | HPE 7.625 09-01-27Bond | Hp Enterprise Co | Bond | 1.15% | +0.92% | -0.57% | |
| 33 | PR 3.25 04-01-28Bond | Permian Resourc Optg LLC | Bond | 1.15% | — | — | |
| 34 | NZF | Nuveen Municipal Credit Inc | Stock-Other | 1.13% | -0.02% | EXIT | |
| 35 | FLR 1.125 08-15-29Bond | Fluor CORP | Bond | 1.13% | -0.03% | — | |
| 36 | DXCM 0.375 05-15-28Bond | Dexcom Inc | Bond | 1.13% | -0.31% | — | |
| 37 | WDC 3 11-15-28Bond | Western Digital CORP | Bond | 1.12% | +0.99% | -0.02% | |
| 38 | IAU | Ishares Gold Trust | ETF-Commodities | 1.11% | -0.43% | -15.91% | |
| 39 | BTT | Blackrock 2030 Muni Trgt Trm | Stock-Other | 1.10% | +0.20% | — | |
| 40 | PRGS 3.5 03-01-30Bond | Progress Software CORP | Bond | 1.08% | -0.02% | +38.40% | |
| 41 | NOG 3.625 04-15-29Bond | Northern Oil & Gas Inc | Bond | 1.08% | -0.27% | -0.54% | |
| 42 | LITE 0.5 06-15-28Bond | Lumentum Holdings Inc | Bond | 1.01% | -2.44% | — | |
| 43 | SIRI 3.75 03-15-28Bond | Sirius Xm Holdings | Bond | 1.00% | +0.01% | — | |
| 44 | QTWO 0.75 06-01-26Bond | Q2 Holdings Inc | Bond | 0.99% | -0.48% | EXIT | |
| 45 | F 0 03-15-26Bond | Ford Motor Company | Bond | 0.98% | — | -35.58% | |
| 46 | IONS 1.75 06-15-28Bond | Ionis Pharmaceuticals In | Bond | 0.94% | -0.45% | -9.74% | |
| 47 | NVG | Nuveen Amt-fr Muni Crdt | Stock-Other | 0.92% | — | -0.51% | |
| 48 | PSN 2.625 03-01-29Bond | Parsons CORP | Bond | 0.90% | -0.09% | +17.92% | |
| 49 | BBIO 2.25 02-01-29Bond | Bridgebio Pharma Inc | Bond | 0.87% | -0.13% | +18.11% | |
| 50 | JAZZ 2 06-15-26Bond | Jazz Investments I LTD | Bond | 0.86% | -0.58% | EXIT |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | QXO 5.5 05-15-28Bond | Qxo Inc | +1.8% | NEW | New buy |
| 2 | ON 0 05-01-27Bond | On Semiconductor CORP | +1.7% | NEW | New buy |
| 3 | MKSI 1.25 06-01-30Bond | Mks Inc | +1.2% | NEW | New buy |
| 4 | MTH 1.75 05-15-28Bond | Meritage Homes CORP | +1.2% | NEW | New buy |
| 5 | FLR 1.125 08-15-29Bond | Fluor CORP | +1.1% | NEW | New buy |
| 6 | DXCM 0.375 05-15-28Bond | Dexcom Inc | +1.1% | NEW | New buy |
| 7 | QTWO 0.75 06-01-26Bond | Q2 Holdings Inc | +0.7% | +233.06% | Add |
| 8 | VERX 0.75 05-01-29Bond | Vertex Inc | +0.7% | NEW | New buy |
| 9 | BA 6 10-15-27Bond | Boeing Co/the | +0.7% | +35.95% | Add |
| 10 | IRTC 1.5 09-01-29Bond | Irhythm Holdings Inc | +0.6% | +65.39% | Add |
| 11 | STX 3.5 06-01-28Bond | Seagate Hdd Cayman | +0.6% | — | Unchanged |
| 12 | MCHP 7.5 03-15-28Bond | Microchip Technology Inc | +0.5% | +20.44% | Add |
| 13 | SPB 3.375 06-01-29Bond | Spectrum Brands Inc | +0.5% | NEW | New buy |
| 14 | LITE 1.5 12-15-29Bond | Lumentum Holdings Inc | +0.5% | NEW | New buy |
| 15 | PRGS 3.5 03-01-30Bond | Progress Software CORP | +0.4% | +38.40% | Add |
| 16 | WDC 3 11-15-28Bond | Western Digital CORP | +0.3% | -0.02% | Trim |
| 17 | UBER 0.875 12-01-28 2028Bond | Uber Technologies Inc | +0.3% | -0.46% | Trim |
| 18 | AEIS 2.5 09-15-28Bond | Advanced Energy Ind | +0.2% | -0.52% | Trim |
| 19 | HPE 7.625 09-01-27Bond | Hp Enterprise Co | +0.2% | -0.57% | Trim |
| 20 | TTEK 2.25 08-15-28Bond | Tetra Tech Inc | +0.2% | -0.31% | Trim |
| 21 | PSN 2.625 03-01-29Bond | Parsons CORP | +0.2% | +17.92% | Add |
| 22 | CHEF 2.375 12-15-28Bond | Chefs' Warehouse THE | +0.2% | -0.60% | Trim |
| 23 | CABO 1.125 03-15-28Bond | Cable One Inc | +0.2% | +17.42% | Add |
| 24 | BBIO 2.25 02-01-29Bond | Bridgebio Pharma Inc | +0.2% | +18.11% | Add |
| 25 | MIRM 4 05-01-29Bond | Mirum Pharmaceuticals | +0.1% | -0.26% | Trim |
| 26 | FWONK 2.25 08-15-27Bond | Liberty Media CORP | +0.1% | -0.59% | Trim |
| 27 | LITE 0.5 06-15-28Bond | Lumentum Holdings Inc | +0.1% | — | Unchanged |
| 28 | ARES 6.75 10-01-27 BBond | Ares Management CORP | +0.1% | -0.42% | Trim |
| 29 | NTNX 0.25 10-01-27Bond | Nutanix Inc | +0.1% | -0.44% | Trim |
| 30 | FOUR 0.5 08-01-27Bond | Shift4 Payments Inc | +0.1% | — | Unchanged |
| 31 | PATK 1.75 12-01-28Bond | Patrick Industries Inc | +0.1% | -0.70% | Trim |
| 32 | ALNY 1 09-15-27Bond | Alnylam Pharmaceuticals | +0.1% | -0.54% | Trim |
| 33 | BLE | Blackrock Muni Inc Tr Ii | +0.1% | +63.17% | Add |
| 34 | GTLS 6.75 12-15-25 BBond | Chart Industries Inc | +0.1% | -0.49% | Trim |
| 35 | NBH | Neuberger Municipal Fund Inc | +0.1% | +25.45% | Add |
| 36 | BLK | BlackRock, Inc. | +0.1% | +50.83% | Add |
| 37 | XMYDX | Blackrock Muniyield Fund | +0.1% | +33.42% | Add |
| 38 | MHD | BlackRock MuniHoldings Fund, Inc. | +0.1% | +26.58% | Add |
| 39 | PI 1.125 05-15-27Bond | Impinj Inc | 0% | — | Unchanged |
| 40 | BL 1 06-01-29Bond | Blackline Inc | 0% | NEW | New buy |
| 41 | BTT | Blackrock 2030 Muni Trgt Trm | 0% | — | Unchanged |
| 42 | APO 6.75 07-31-26Bond | Apollo Global Management | 0% | -0.52% | Trim |
| 43 | MYI | Blackrock Muniyield Qlty Iii | 0% | NEW | New buy |
| 44 | VMO | Invesco Municipal Opport | 0% | +48.15% | Add |
| 45 | EIM | Eaton Vance Municipal Bond | 0% | +29.35% | Add |
| 46 | DBX 0 03-01-28Bond | Dropbox Inc | 0% | — | Unchanged |
| 47 | RIVN 4.625 03-15-29Bond | Rivian Auto Inc | 0% | -0.42% | Trim |
| 48 | LYV 3.125 01-15-29Bond | Live Nation Entertainmen | 0% | -3.75% | Trim |
| 49 | MHD | Blackrock Muniholdings Fund | 0% | +7.42% | Add |
| 50 | LITE 0.5 12-15-26Bond | Lumentum Holdings Inc | 0% | -3.80% | Trim |
According to official SEC Form 13F filings, Mackay Shields LLC reported a total U.S. public equity portfolio value of $3.0B across 145 disclosed positions in Q2 2025.
Expert Analysis & Guides for Tracking Wall Street Smart Money Movements
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
Top New Position Initiated
QXO 5.5 05-15-28
市值: $56.6M
Top Position Liquidated / Trimmed
NRG 2.75 06-01-48
前期市值: $77.4M
During Q2 2025, Mackay Shields LLC's top holdings by market value included TTEK 2.25 08-15-28 (2.3%)、LNTH 2.625 12-15-27 (2.3%)、POST 2.5 08-15-27 (2.1%). The largest single position, TTEK 2.25 08-15-28, represented 2.3% of total portfolio value.
In Q2 2025, Mackay Shields LLC made 106 total portfolio adjustments, initiating 11 new buys, adding to 17 positions, trimming 68 holdings, and fully liquidating 10 stocks.
All holding records on this page are fetched directly from the U.S. Securities and Exchange Commission (SEC) EDGAR system (Form 13F-HR). AlphaSMO parses CUSIP identifiers and formats data into Schema.org-compliant datasets.
Understand SEC Form 4 insider disclosures for corporate officers, directors, and 10% owners to track executive transactions.
Understand Rule 144 restricted stock sale notices to spot planned insider liquidations before market sell pressure arrives.
Explore the 5% beneficial ownership threshold, 13D vs 13G filing differences, and recent SEC accelerated deadline rules.
Best practices for analyzing 13F quarterly changes without getting misled by stock splits, options, or market valuation drift.
Learn how AlphaSMO's flagship signal detects high-conviction stocks where 13F hedge funds and corporate insiders buy at the same time.