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.
CIK: 0000061227
Total reported value
$2.8B
$2.8B
108 檔
19.5%
In Q2 2026, Mackay Shields LLC's U.S. equity holdings reached a combined market value of $2.8B, distributed across 108 disclosed stock positions.
In Q2 2026, Mackay Shields LLC adopted a defensive or profit-taking posture, trimming 59 positions and completely liquidating 16 holdings to manage risk exposure.
In terms of portfolio concentration, the top 5 core holdings (including WDC 3 11-15-28, , MKSI 1.25 06-01-30) accounted for 19.5% of total reported equity market value during Q2 2026.
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | WDC 3 11-15-28Bond | Western Digital CORP | Bond | 5.05% | -3.14% | -42.16% | |
| 2 | ✓ | Stock-Other | 4.11% | +0.23% | — | ||
| 3 | MKSI 1.25 06-01-30Bond | Mks Inc | Bond | 3.60% | -1.17% | -0.11% | |
| 4 | LITE 0.5 06-15-28Bond | Lumentum Holdings Inc | Bond | 2.82% | -0.10% | -51.90% | |
| 5 | LNTH 2.625 12-15-27Bond | Lantheus Holdings Inc | Bond | 2.48% | -2.48% | EXIT | |
| 6 | HPE 7.625 09-01-27Bond | Hp Enterprise Co | Bond | 2.35% | +1.22% | -0.10% | |
| 7 | CABO 1.125 03-15-28Bond | Cable One Inc | Bond | 1.97% | -1.12% | +16.20% | |
| 8 | QXO 5.5 05-15-28Bond | Qxo Inc | Bond | 1.92% | -0.03% | -0.07% | |
| 9 | BA 6 10-15-27Bond | Boeing Co/the | Bond | 1.88% | -0.11% | -0.09% | |
| 10 | TTEK 2.25 08-15-28Bond | Tetra Tech Inc | Bond | 1.85% | +0.17% | -3.80% | |
| 11 | UBER 0.875 12-01-28 2028Bond | Uber Technologies Inc | Bond | 1.82% | +0.33% | +0.03% | |
| 12 | SNOW 0 10-01-27Bond | Snowflake Inc | Bond | 1.81% | +1.08% | -0.09% | |
| 13 | CHEF 2.375 12-15-28Bond | Chefs' Warehouse THE | Bond | 1.78% | -1.78% | EXIT | |
| 14 | ETSY 0.125 10-01-26Bond | Etsy Inc | Bond | 1.70% | -1.70% | EXIT | |
| 15 | NEE 7.299 06-01-27Bond | Nextera Energy Inc | Bond | 1.69% | -0.03% | +98.96% | |
| 16 | PCG 4.25 12-01-27Bond | Pg&e CORP | Bond | 1.59% | +0.24% | +0.15% | |
| 17 | MCHP 7.5 03-15-28Bond | Microchip Technology Inc | Bond | 1.56% | — | +0.41% | |
| 18 | BTT | Blackrock 2030 Muni Trgt Trm | Stock-Other | 1.50% | +0.06% | +25.65% | |
| 19 | ITGR 1.875 03-15-30Bond | Integer Holdings CORP | Bond | 1.47% | -1.47% | EXIT | |
| 20 | APO 6.75 07-31-26Bond | Apollo Global Management | Bond | 1.46% | -1.46% | EXIT | |
| 21 | FWONK 2.25 08-15-27Bond | Liberty Media CORP | Bond | 1.41% | +0.03% | -0.23% | |
| 22 | POST 2.5 08-15-27Bond | Post Holdings Inc | Bond | 1.40% | +0.04% | -0.17% | |
| 23 | ✓ | Stock-Other | 1.38% | +0.22% | — | ||
| 24 | AKAM 0.375 09-01-27Bond | Akamai Technologies Inc | Bond | 1.37% | +0.16% | +0.61% | |
| 25 | ON 0 05-01-27Bond | On Semiconductor CORP | Bond | 1.34% | -0.16% | -43.97% | |
| 26 | NINE | Nine Energy Service Inc | Stock-Other | 1.31% | -0.50% | -1.79% | |
| 27 | DDOG 0 12-01-29Bond | Datadog Inc | Bond | 1.31% | +0.12% | -18.83% | |
| 28 | ✓ | Stock-Other | 1.28% | +1.00% | — | ||
| 29 | FRPT 3 04-01-28Bond | Freshpet Inc | Bond | 1.24% | +0.25% | +0.03% | |
| 30 | BBIO 2.25 02-01-29Bond | Bridgebio Pharma Inc | Bond | 1.24% | — | -0.17% | |
| 31 | IRTC 1.5 09-01-29Bond | Irhythm Holdings Inc | Bond | 1.20% | +0.06% | -0.10% | |
| 32 | LYV 2.875 01-15-30Bond | Live Nation Entertainmen | Bond | 1.19% | -0.01% | — | |
| 33 | PTON 5.5 12-01-29Bond | Peloton Interactive Inc | Bond | 1.17% | -0.06% | +10.72% | |
| 34 | FLR 1.125 08-15-29Bond | Fluor CORP | Bond | 1.16% | +0.01% | -0.55% | |
| 35 | JAZZ 3.125 09-15-30Bond | Jazz Investments I LTD | Bond | 1.16% | -1.16% | EXIT | |
| 36 | NOG 3.625 04-15-29Bond | Northern Oil & Gas Inc | Bond | 1.07% | +0.14% | -0.17% | |
| 37 | AFRM 0.75 12-15-29Bond | Affirm Holdings Inc | Bond | 1.06% | +0.34% | -0.14% | |
| 38 | ✓ | Stock-Other | 1.06% | +0.23% | — | ||
| 39 | ✓ | Stock-Other | 1.06% | +1.34% | — | ||
| 40 | U 0 03-15-30Bond | Unity Software Inc | Bond | 1.02% | +0.29% | +0.01% | |
| 41 | ORCL 6.5 01-15-29 DBond | Oracle CORP | Bond | 0.98% | +0.43% | -0.16% | |
| 42 | MTH 1.75 05-15-28Bond | Meritage Homes CORP | Bond | 0.97% | +0.01% | -0.33% | |
| 43 | PATK 1.75 12-01-28Bond | Patrick Industries Inc | Bond | 0.95% | -0.13% | -0.09% | |
| 44 | SIRI 3.75 03-15-28Bond | Sirius Xm Holdings | Bond | 0.94% | +0.01% | — | |
| 45 | BURL 1.25 12-15-27Bond | Burlington Stores Inc | Bond | 0.94% | -0.07% | -13.98% | |
| 46 | PRGS 3.5 03-01-30Bond | Progress Software CORP | Bond | 0.92% | +0.11% | -0.36% | |
| 47 | BAC 7.25 PERP LBond | Bank Of America CORP | Bond | 0.88% | +0.04% | -0.29% | |
| 48 | PSN 2.625 03-01-29Bond | Parsons CORP | Bond | 0.86% | +0.03% | +0.13% | |
| 49 | BMRN 1.25 05-15-27Bond | Biomarin Pharmaceutical | Bond | 0.86% | +0.08% | -0.26% | |
| 50 | IAU | Ishares Gold Trust | ETF-Commodities | 0.83% | -0.16% | -15.92% |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | ✓ | +4.1% | NEW | New buy | |
| 2 | MKSI 1.25 06-01-30Bond | Mks Inc | +1.4% | -0.11% | Trim |
| 3 | ✓ | +1.4% | NEW | New buy | |
| 4 | ✓ | +1.3% | NEW | New buy | |
| 5 | JAZZ 3.125 09-15-30Bond | Jazz Investments I LTD | +1.2% | NEW | New buy |
| 6 | ✓ | +1.1% | NEW | New buy | |
| 7 | ✓ | +1.1% | NEW | New buy | |
| 8 | WDC 3 11-15-28Bond | Western Digital CORP | +1% | -42.16% | Trim |
| 9 | HPE 7.625 09-01-27Bond | Hp Enterprise Co | +0.9% | -0.10% | Trim |
| 10 | ✓ | +0.8% | NEW | New buy | |
| 11 | NEE 7.299 06-01-27Bond | Nextera Energy Inc | +0.7% | +98.96% | Add |
| 12 | ARWR 0 01-15-32Bond | Arrowhead Research CORP | +0.7% | +581.90% | Add |
| 13 | ETSY 0.125 10-01-26Bond | Etsy Inc | +0.5% | +52.39% | Add |
| 14 | ✓ | +0.5% | NEW | New buy | |
| 15 | CHEF 2.375 12-15-28Bond | Chefs' Warehouse THE | +0.5% | -0.16% | Trim |
| 16 | ✓ | +0.4% | NEW | New buy | |
| 17 | SNOW 0 10-01-27Bond | Snowflake Inc | +0.4% | -0.09% | Trim |
| 18 | NINE | Nine Energy Service Inc | +0.4% | -1.79% | Trim |
| 19 | NEE 7.375 02-15-29Bond | Nextera Energy Inc | +0.4% | NEW | New buy |
| 20 | ✓ | +0.3% | NEW | New buy | |
| 21 | MCHP 7.5 03-15-28Bond | Microchip Technology Inc | +0.3% | +0.41% | Add |
| 22 | GH 0 11-15-27Bond | Guardant Health Inc | +0.3% | NEW | New buy |
| 23 | LNTH 2.625 12-15-27Bond | Lantheus Holdings Inc | +0.2% | -0.07% | Trim |
| 24 | PTON 5.5 12-01-29Bond | Peloton Interactive Inc | +0.2% | +10.72% | Add |
| 25 | BTT | Blackrock 2030 Muni Trgt Trm | +0.2% | +25.65% | Add |
| 26 | SYNA 0.75 12-01-31Bond | Synaptics Inc | +0.2% | — | Unchanged |
| 27 | ✓ | +0.2% | NEW | New buy | |
| 28 | AFRM 0.75 12-15-29Bond | Affirm Holdings Inc | +0.1% | -0.14% | Trim |
| 29 | DDOG 0 12-01-29Bond | Datadog Inc | +0.1% | -18.83% | Trim |
| 30 | WBD | Warner Bros Discovery Inc | +0.1% | +58.26% | Add |
| 31 | U 0 03-15-30Bond | Unity Software Inc | 0% | +0.01% | Add |
| 32 | UPST 1 11-15-30Bond | Upstart Holdings Inc | 0% | — | Unchanged |
| 33 | LYV 3.125 01-15-29Bond | Live Nation Entertainmen | 0% | -1.06% | Trim |
| 34 | LYV 2.875 01-15-30Bond | Live Nation Entertainmen | 0% | — | Unchanged |
| 35 | SIRI 3.75 03-15-28Bond | Sirius Xm Holdings | 0% | — | Unchanged |
| 36 | RIVN 4.625 03-15-29Bond | Rivian Auto Inc | 0% | -0.04% | Trim |
| 37 | NET 0 08-15-26Bond | Cloudflare Inc | — | -0.76% | Trim |
| 38 | NTNX 0.25 10-01-27Bond | Nutanix Inc | — | -0.48% | Trim |
| 39 | WW | Ww International Inc-new | — | — | Unchanged |
| 40 | EIM | Eaton Vance Municipal Bond | — | — | Unchanged |
| 41 | PPL 2.875 03-15-28Bond | Ppl Capital Funding Inc | — | — | Unchanged |
| 42 | SECR | Nyli Mackay Secur Inc ETF | — | — | Unchanged |
| 43 | CHGG 0 09-01-26Bond | Chegg Inc | — | — | Unchanged |
| 44 | VKI | Invesco Adv Muni Inc Tr Ii | 0% | EXIT | Sold out |
| 45 | HALO 0.25 03-01-27Bond | Halozyme Therapeutics In | 0% | -0.17% | Trim |
| 46 | SPB 3.375 06-01-29Bond | Spectrum Brands Inc | 0% | — | Unchanged |
| 47 | BL 1 06-01-29Bond | Blackline Inc | 0% | -53.54% | Trim |
| 48 | VFL | Abrdn National Municipal Inc | 0% | — | Unchanged |
| 49 | MUC | Blackrock Munihold Ca Qlty | 0% | -12.28% | Trim |
| 50 | MFM | Aberdeen Municipal Income | 0% | +0.20% | Add |
According to official SEC Form 13F filings, Mackay Shields LLC reported a total U.S. public equity portfolio value of $2.8B across 108 disclosed positions in Q2 2026.
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
市值: $122.6M
Top Position Liquidated / Trimmed
NCLH 1.125 02-15-27
前期市值: $38.0M
During Q2 2026, Mackay Shields LLC's top holdings by market value included WDC 3 11-15-28 (5.0%)、 (4.1%)、MKSI 1.25 06-01-30 (3.6%). The largest single position, WDC 3 11-15-28, represented 5.0% of total portfolio value.
In Q2 2026, Mackay Shields LLC made 104 total portfolio adjustments, initiating 13 new buys, adding to 16 positions, trimming 59 holdings, and fully liquidating 16 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.