MacKay Shields LLC
Reported holdings as of Q2 2026, from 31 quarterly filings.
This filer last reported in Q2 2026; the most recent quarter on file across all filers is Q3 2026. Firms that restructure stop filing under one CIK and start under another, so a successor entity may hold these positions now under a similar name.
Holdings
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| Security | Ticker | Value | Shares | Weight | Weight change | Held | Change |
|---|---|---|---|---|---|---|---|
| WESTERN DIGITAL CORP | $150.8M | 8,952,000 | +0.99pp | 7q | DEBT | ||
| ALPHABET INC | GOOGN | $122.6M | 2,427,303 | - | new | NEW | |
| MKS INC. | $107.5M | 36,470,000 | +1.39pp | 5q | DEBT | ||
| LUMENTUM HLDGS INC | $84.1M | 12,884,000 | -2.45pp | 7q | DEBT | ||
| LANTHEUS HLDGS INC | $74.0M | 50,863,000 | +0.24pp | 11q | DEBT | ||
| HEWLETT PACKARD ENTERPRISE C | HPEPRC | $70.2M | 601,263 | +0.92pp | 8q | HELD | |
| CABLE ONE INC | $58.8M | 89,888,000 | -0.17pp | 18q | DEBT | ||
| QXO INC | QXOPRB | $57.4M | 1,169,488 | -0.47pp | 5q | HELD | |
| BOEING CO | BAPRA | $56.2M | 828,674 | -0.09pp | 7q | HELD | |
| TETRA TECH INC NEW | $55.3M | 52,445,000 | -0.24pp | 8q | DEBT | ||
| UBER TECHNOLOGIES INC | $54.3M | 45,364,000 | -0.18pp | 7q | DEBT | ||
| SNOWFLAKE INC | $54.2M | 32,541,000 | +0.40pp | 4q | DEBT | ||
| CHEFS WHSE INC | $53.0M | 23,710,000 | +0.49pp | 11q | DEBT | ||
| ETSY INC | $50.9M | 49,886,000 | +0.53pp | 24q | DEBT | ||
| NEXTERA ENERGY INC | NEEPRS | $50.5M | 940,950 | +0.71pp | 4q | +99.0%+$25.1M | |
| PG&E CORP | $47.5M | 46,453,000 | -0.17pp | 7q | DEBT | ||
| MICROCHIP TECHNOLOGY INC. | MCHPP | $46.5M | 603,491 | +0.30pp | 6q | HELD | |
| BLACKROCK MUN TARGET TERM TR | BTT | $44.8M | 1,967,980 | +0.20pp | 31q | +25.6%+$9.1M | |
| INTEGER HLDGS CORP | $43.9M | 45,243,000 | -0.11pp | 2q | DEBT | ||
| APOLLO GLOBAL MGMT INC | APOPRA | $43.5M | 713,153 | -0.08pp | 12q | HELD | |
| LIBERTY MEDIA CORP DEL | $42.1M | 33,894,000 | -0.03pp | 12q | DEBT | ||
| POST HLDGS INC | $41.7M | 40,161,000 | -0.20pp | 12q | DEBT | ||
| MERIT MED SYS INC | $41.1M | 38,073,000 | - | new | DEBT | ||
| AKAMAI TECHNOLOGIES INC | $40.8M | 34,024,000 | -0.07pp | 24q | DEBT | ||
| ON SEMICONDUCTOR CORP | $40.0M | 21,949,000 | -0.52pp | 5q | DEBT | ||
| NINE ENERGY SERVICE INC | NINE | $39.2M | 3,011,565 | +0.39pp | 2q | -1.8%-$713.8K | |
| DATADOG INC | $39.1M | 27,438,000 | +0.11pp | 3q | DEBT | ||
| REVOLUTION MEDICINES INC | $38.1M | 30,344,000 | - | new | DEBT | ||
| FRESHPET INC | $37.0M | 31,800,000 | -0.10pp | 4q | DEBT | ||
| BRIDGEBIO PHARMA INC | $36.9M | 33,259,000 | -0.13pp | 10q | DEBT | ||
| IRHYTHM HOLDINGS INC | $35.9M | 32,598,000 | -0.11pp | 6q | DEBT | ||
| LIVE NATION ENTERTAINMENT IN | $35.6M | 29,737,000 | +0.01pp | 3q | DEBT | ||
| PELOTON INTERACTIVE INC | $34.9M | 21,499,000 | +0.21pp | 2q | DEBT | ||
| FLUOR CORP | $34.7M | 26,167,000 | -0.03pp | 5q | DEBT | ||
| JAZZ INVESTMENTS I LTD | $34.7M | 20,318,000 | - | new | DEBT | ||
| NORTHERN OIL & GAS INC | $31.9M | 33,241,000 | -0.27pp | 11q | DEBT | ||
| AFFIRM HLDGS INC | $31.7M | 27,113,000 | +0.13pp | 3q | DEBT | ||
| CYBERARK SOFTWARE LTD | $31.6M | 19,004,000 | - | new | DEBT | ||
| CLOUDFLARE INC | $31.5M | 24,872,000 | - | new | DEBT | ||
| UNITY SOFTWARE INC | $30.5M | 26,904,000 | +0.04pp | 2q | DEBT | ||
| ORACLE CORP | ORCLPRD | $29.1M | 645,801 | -0.11pp | 2q | HELD | |
| MERITAGE HOMES CORP | $29.0M | 28,031,000 | -0.03pp | 5q | DEBT | ||
| PATRICK INDS INC | $28.3M | 19,118,000 | -0.27pp | 14q | DEBT | ||
| LIBERTY MEDIA CORP DEL | $28.1M | 24,458,000 | +0.01pp | 10q | DEBT | ||
| BURLINGTON STORES INC | $28.0M | 17,529,000 | -0.30pp | 8q | DEBT | ||
| PROGRESS SOFTWARE CORP | $27.5M | 28,590,000 | -0.02pp | 6q | DEBT | ||
| BANK OF AMER CORP | BACPRL | $26.1M | 20,806 | -0.04pp | 19q | HELD | |
| PARSONS CORP DEL | $25.8M | 26,167,000 | -0.08pp | 6q | DEBT | ||
| BIOMARIN PHARMACEUTICAL INC | $25.7M | 26,434,000 | -0.07pp | 21q | DEBT | ||
| ISHARES GOLD TR | IAU | $24.8M | 328,020 | -0.43pp | 21q | -15.9%-$4.7M | |
| DROPBOX INC | $24.6M | 24,323,000 | -0.02pp | 18q | DEBT | ||
| ARROWHEAD PHARMACEUTICALS IN | $24.5M | 20,457,000 | +0.71pp | 2q | DEBT | ||
| DOORDASH INC | $24.4M | 24,710,000 | - | new | DEBT | ||
| SYNAPTICS INC | $24.0M | 16,169,000 | +0.19pp | 3q | DEBT | ||
| GUIDEWIRE SOFTWARE INC | $24.0M | 24,911,000 | -0.12pp | 3q | DEBT | ||
| BLACKROCK MUNIYIELD N Y QUAL | MYN | $23.8M | 2,349,687 | -0.03pp | 31q | HELD | |
| BLACKROCK MUNIHOLDINGS FD IN | MHD | $23.6M | 1,982,355 | -0.03pp | 22q | HELD | |
| RIVIAN AUTOMOTIVE INC | $22.1M | 18,580,000 | +0.01pp | 10q | DEBT | ||
| GREENBRIER COS INC | $21.8M | 19,032,000 | -0.08pp | 17q | DEBT | ||
| DEXCOM INC | $20.9M | 22,415,000 | -0.31pp | 5q | DEBT | ||
| UPSTART HLDGS INC | $20.6M | 25,168,000 | +0.03pp | 3q | DEBT | ||
| BLACKROCK MUNIYILD QULT FD I | MQY | $18.5M | 1,594,019 | -0.02pp | 28q | HELD | |
| SHIFT4 PMTS INC | $18.3M | 19,157,000 | -0.06pp | 7q | DEBT | ||
| ARES MANAGEMENT CORPORATION | ARESPRB | $18.1M | 479,735 | -0.05pp | 7q | HELD | |
| ALNYLAM PHARMACEUTICALS INC | $17.9M | 14,834,000 | -0.10pp | 12q | DEBT | ||
| WELLS FARGO & CO | WFCPRL | $17.1M | 14,748 | -0.05pp | 19q | HELD | |
| GULFPORT ENERGY CORP | GPOR | $16.5M | 97,512 | -0.21pp | 21q | -1.1%-$183.3K | |
| NUTANIX INC | $16.3M | 16,565,000 | -0.44pp | 3q | DEBT | ||
| WORKIVA INC | $15.5M | 16,585,000 | -0.06pp | 8q | DEBT | ||
| RUBRIK INC. | $15.2M | 14,825,000 | - | new | DEBT | ||
| TALOS ENERGY INC | TALO | $15.0M | 1,163,908 | -0.26pp | 31q | -12.4%-$2.1M | |
| MGP INGREDIENTS INC NEW | $13.9M | 14,243,000 | -0.04pp | 15q | DEBT | ||
| ADVANCED ENERGY INDS | $13.2M | 4,843,000 | -3.05pp | 8q | DEBT | ||
| BILL HOLDINGS INC | $13.1M | 15,102,000 | -0.06pp | 3q | DEBT | ||
| ALPHABET INC | $12.6M | 250,000 | - | new | NEW | ||
| GLOBAL PMTS INC | $11.6M | 12,879,000 | -0.03pp | 6q | DEBT | ||
| NEXTERA ENERGY INC | NEEPRV | $11.0M | 228,903 | - | new | NEW | |
| BLACKROCK MUNIHLDGS NJ QLTY | MUJ | $10.9M | 881,952 | -0.12pp | 31q | -23.2%-$3.3M | |
| WARNER BROS DISCOVERY INC | WBD | $9.5M | 358,060 | +0.09pp | 4q | +58.3%+$3.5M | |
| LIFE360 INC | $9.2M | 8,870,000 | - | new | DEBT | ||
| GUARDANT HEALTH INC | $8.9M | 7,179,000 | - | new | DEBT | ||
| LIVE NATION ENTERTAINMENT IN | $8.3M | 4,676,000 | +0.02pp | 10q | DEBT | ||
| SPECTRUM BRANDS INC | $8.2M | 7,857,000 | -0.01pp | 5q | DEBT | ||
| VERTEX INC | $8.2M | 9,152,000 | -0.02pp | 5q | DEBT | ||
| TELADOC HEALTH INC | $7.3M | 7,505,000 | -0.02pp | 21q | DEBT | ||
| CLOUDFLARE INC | $7.2M | 5,637,000 | flat | 6q | DEBT | ||
| MIRUM PHARMACEUTICALS INC | $7.2M | 1,947,000 | -2.29pp | 9q | DEBT | ||
| WEC ENERGY GROUP INC | $6.4M | 5,162,000 | -0.02pp | 4q | DEBT | ||
| SOUTHERN CO | $6.1M | 5,569,000 | -0.02pp | 4q | DEBT | ||
| HALOZYME THERAPEUTICS INC | $6.0M | 5,407,000 | flat | 4q | DEBT | ||
| OSI SYSTEMS INC | $6.0M | 4,485,000 | -0.05pp | 4q | DEBT | ||
| BLACKROCK MUNIYIELD MICH QU | MIY | $5.9M | 479,747 | -0.09pp | 31q | -27.2%-$2.2M | |
| SPDR GOLD TR | GLD | $5.6M | 15,336 | -0.05pp | 31q | HELD | |
| FIVE9 INC | $5.5M | 6,155,000 | -0.02pp | 6q | DEBT | ||
| NUTANIX INC | $5.2M | 4,582,000 | flat | 10q | DEBT | ||
| BLACKROCK MUNIYIELD QUALITY | MYI | $4.9M | 439,004 | -0.04pp | 2q | -16.6%-$969.4K | |
| SOUTHERN CO | $4.9M | 4,815,000 | - | new | DEBT | ||
| INTEGER HLDGS CORP | $4.6M | 3,756,000 | -0.01pp | 10q | DEBT | ||
| ABRDN NATL MUN INCOME FD | VFL | $4.2M | 401,695 | -0.01pp | 31q | HELD | |
| IONIS PHARMACEUTICALS INC | $3.8M | 2,414,000 | -0.45pp | 8q | DEBT | ||
| ABERDEEN MUN INCOME FD | MFM | $1.9M | 333,822 | flat | 31q | HELD | |
| BLACKROCK MUNIHLDNGS CALI | MUC | $1.4M | 128,815 | -0.01pp | 11q | -12.3%-$198.1K | |
| EATON VANCE MUN BD FD | EIM | $1.3M | 125,764 | flat | 10q | HELD | |
| PPL CAP FDG INC | $568.1K | 500,000 | flat | 10q | DEBT | ||
| NEW YORK LIFE INVTS ACTIVE E | SECR | $292.0K | 11,504 | flat | 3q | HELD | |
| BLACKLINE INC | $272.3K | 295,000 | -0.01pp | 5q | DEBT | ||
| WW INTL INC | WW | $229.6K | 14,371 | flat | 4q | HELD | |
| CHEGG INC | $43.0K | 45,000 | flat | 20q | DEBT |
By sector
Industry comes from the SIC code on each company's own SEC filings, which is self-reported and sometimes out of date. Derivative exposure is counted with the shares. Securities the SEC assigns no industry - funds, trusts, foreign issues - are shown as not classified rather than dropped.
| Sector | Value | Share |
|---|---|---|
| Funds & ETFs | $88.6M | 3.0% |
| Energy | $70.8M | 2.4% |
| Semiconductors & Electronics | $46.5M | 1.6% |
| Other sectors | $40.2M | 1.3% |
| Not classified | $2.7B | 91.8% |
What the disclosed book did
This is not the fund's return. A 13F shows long US equity positions only, so shorts, bonds, foreign listings, private holdings and cash are all invisible here. What this measures is the quarter's change in value of the positions this manager disclosed, had they been left untouched - the return a reader following the filing would have earned.
| Quarter | Book | Market | Difference | Priced |
|---|---|---|---|---|
| Q2 2022 | -15.9% | -16.5% | +0.6% | 68% |
| Q1 2022 | -4.6% | -4.9% | +0.3% | 69% |
| Q4 2021 | +9.2% | +10.7% | -1.5% | 70% |
| Q3 2021 | +0.2% | +0.3% | -0.1% | 72% |
| Q2 2021 | +7.8% | +8.0% | -0.2% | 82% |
| Q1 2021 | +7.3% | +6.0% | +1.3% | 83% |
| Q4 2020 | +13.1% | +11.6% | +1.4% | 76% |
| Q3 2020 | +8.0% | +8.6% | -0.6% | 81% |
Market is SPY over the same two quarter ends, priced the same way as everything else here - the median across every filer reporting it. It is a large-cap US proxy, so a manager holding small caps or biotech will beat or trail it for reasons that are not skill. Prices are quarter-end to quarter-end and say nothing about the path in between, or about trades opened and closed inside a quarter.
Quarter by quarter
| Quarter | Value | Positions | New | Added | Trimmed | Exited | Top 10 | Days to file |
|---|---|---|---|---|---|---|---|---|
| Q2 2026 | $3.0B | 108 | 13 | 8 | 31 | 16 | 28.0% | 28 |
| Q1 2026 | $2.7B | 111 | 7 | 19 | 43 | 28 | 28.4% | 27 |
| Q4 2025 | $2.9B | 132 | 10 | 7 | 91 | 14 | 23.7% | 29 |
| Q3 2025 | $2.9B | 136 | 10 | 10 | 56 | 19 | 21.5% | 27 |
| Q2 2025 | $3.1B | 145 | 11 | 17 | 53 | 10 | 19.8% | 24 |
| Q1 2025 | $3.1B | 144 | 11 | 25 | 52 | 14 | 20.4% | 29 |
| Q4 2024 | $3.4B | 147 | 11 | 5 | 65 | 8 | 20.1% | 35 |
| Q3 2024 | $3.6B | 144 | 10 | 23 | 30 | 5 | 20.7% | 31 |
| Q2 2024 | $3.3B | 139 | 14 | 30 | 49 | 15 | 22.8% | 39 |
| Q1 2024 | $3.6B | 140 | 15 | 20 | 38 | 14 | 24.7% | 33 |
| Q4 2023 | $3.4B | 139 | 14 | 29 | 55 | 12 | 25.9% | 33 |
| Q3 2023 | $3.6B | 137 | 9 | 3 | 50 | 19 | 27.4% | 25 |
| Q2 2023 | $3.6B | 147 | 3 | 14 | 50 | 10 | 26.0% | 27 |
| Q1 2023 | $3.6B | 154 | 9 | 14 | 101 | 96 | 25.7% | 27 |
| Q4 2022 | $3.9B | 241 | 14 | 8 | 53 | 14 | 28.2% | 31 |
| Q3 2022 | $4.0B | 241 | 15 | 15 | 47 | 18 | 28.4% | 33 |
| Q2 2022 | $4.1B | 244 | 17 | 29 | 38 | 504 | 26.5% | 34 |
| Q1 2022 | $11.4B | 731 | 35 | 45 | 488 | 21 | 25.0% | 43 |
| Q4 2021 | $12.0B | 717 | 34 | 44 | 528 | 28 | 25.1% | 35 |
| Q3 2021 | $10.6B | 711 | 29 | 68 | 487 | 26 | 25.6% | 110 |
| Q2 2021 | $10.6B | 708 | 40 | 38 | 523 | 830 | 25.4% | 44 |
| Q1 2021 | $13.7B | 1,498 | 126 | 224 | 1,003 | 116 | 25.4% | 44 |
| Q4 2020 | $14.5B | 1,488 | 267 | 379 | 706 | 191 | 23.0% | 47 |
| Q3 2020 | $14.7B | 1,412 | 189 | 619 | 462 | 228 | 27.5% | 35 |
| Q2 2020 | $12.5B | 1,451 | 279 | 499 | 517 | 211 | 22.1% | 31 |
| Q1 2020 | $10.8B | 1,383 | 248 | 346 | 617 | 207 | 20.6% | 38 |
| Q4 2019 | $14.5B | 1,342 | 153 | 283 | 838 | 201 | 20.0% | 42 |
| Q3 2019 | $16.4B | 1,390 | 185 | 578 | 514 | 195 | 17.8% | 32 |
| Q2 2019 | $14.7B | 1,400 | 215 | 705 | 420 | 187 | 18.5% | 44 |
| Q1 2019 | $13.8B | 1,372 | 138 | 517 | 589 | 133 | 19.6% | 45 |
| Q4 2018 | $12.3B | 1,367 | 0 | 0 | 0 | 0 | 19.4% | 45 |
Rows marked UNVERIFIED ID, PLACEHOLDER ID, TICKER AS ID or NON-CUSIP ID carry an identifier that is not a valid CUSIP. They are shown because the filer reported that money, but treat the security named with caution - hover the chip for what is wrong with it, and see the methodology.
Held counts consecutive filings in which this manager reported the position, and can reach further back than the quarters listed above: the tabs begin at Q4 2018 because earlier coverage is too sparse to describe a market, but tenure is counted over every filing we hold, some reaching to 2007. A position sold and later rebought starts again from one.
Weight change is the shift in this position's share of the whole book, in percentage points. It is the more useful column: when money flows into or out of a broad fund, almost every holding is bought or sold at once, so added and trimmed largely track flows. A weight that rose while the book shrank is a decision. Both compare with the previous quarter this filer reported, not the previous calendar quarter.