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MACKAY SHIELDS LLC
Period ended Sep 30, 2026 · Latest filing Oct 13, 2026
These quarterly holdings are delayed and may not include all assets or short positions.
Values are from the reporting date, not current prices or purchase costs.
The same security may appear in multiple rows.
Source: SEC
Reported portfolio value
Quarter-end reported holdings; not current value or investment performance.
View reported values
- Sep 30, 2026: $2,758,030,309
More quarters will appear as history becomes available.
Top holdings
Top 10 at Sep 30, 2026. Matching entries are combined; security classes and options remain separate. Shares exclude principal amounts; option shares reflect the reported underlying amount.
View top holdings values
- ALPHABET INC · DEP SHS RP1/20 A · 02079K404 · shares: $119,679,035
- HEWLETT PACKARD ENTERPRISE C · 7.625 MAND CONV · 42824C208 · shares: $98,565,874
- SNOWFLAKE INC · NOTE 10/0 · 833445AB5 · principal: $79,643,653
- LUMENTUM HLDGS INC · NOTE 0.500% 6/1 · 55024UAF6 · principal: $74,960,514
- MKS INC. · NOTE 1.250% 6/0 · 55306NAB0 · principal: $66,911,605
- CLOUDFLARE INC · NOTE 6/1 · 18915MAF4 · principal: $66,066,689
- REVOLUTION MEDICINES INC · NOTE 0.500% 5/0 · 76155XAA8 · principal: $62,789,138
- UBER TECHNOLOGIES INC · NOTE 0.875%12/0 · 90353TAM2 · principal: $59,265,621
- TETRA TECH INC NEW · DBCV 2.250% 8/1 · 88162GAB9 · principal: $55,697,192
- WESTERN DIGITAL CORP · NOTE 3.000%11/1 · 958102AT2 · principal: $52,742,022
Reported holdings
297 reported entries| Issuer | Class | CUSIP | Type | Shares / principal | Reported value (USD) |
|---|---|---|---|---|---|
| ALPHABET INC | DEP SHS RP1/20 A | 02079K404 | — | 1,944,160 shares | $95,905,413 |
| HEWLETT PACKARD ENTERPRISE C | 7.625 MAND CONV | 42824C208 | — | 492,700 shares | $80,763,384 |
| LUMENTUM HLDGS INC | NOTE 0.500% 6/1 | 55024UAF6 | — | 9,622,000 principal | $71,068,092 |
| SNOWFLAKE INC | NOTE 10/0 | 833445AB5 | — | 29,387,000 principal | $63,490,614 |
| MKS INC. | NOTE 1.250% 6/0 | 55306NAB0 | — | 32,168,000 principal | $59,020,238 |
| CLOUDFLARE INC | NOTE 6/1 | 18915MAF4 | — | 33,925,000 principal | $53,546,273 |
| REVOLUTION MEDICINES INC | NOTE 0.500% 5/0 | 76155XAA8 | — | 40,330,000 principal | $51,978,038 |
| UBER TECHNOLOGIES INC | NOTE 0.875%12/0 | 90353TAM2 | — | 42,277,000 principal | $48,408,349 |
| TETRA TECH INC NEW | DBCV 2.250% 8/1 | 88162GAB9 | — | 44,292,000 principal | $47,093,469 |
| NEXTERA ENERGY INC | UNIT 06/01/2027 | 65339F663 | — | 885,400 shares | $43,177,613 |
| QXO INC | 5.50 DEP PFD | 82846H504 | — | 1,175,346 shares | $43,064,677 |
| MERIT MED SYS INC | NOTE 3.000% 2/0 | 589889AB0 | — | 36,190,000 principal | $42,070,875 |
| BOEING CO | DEP CONV PFD A | 097023204 | — | 685,600 shares | $40,460,684 |
| DATADOG INC | NOTE 12/0 | 23804LAD5 | — | 26,233,000 principal | $37,786,086 |
| PG&E CORP | NOTE 4.250%12/0 | 69331CAL2 | — | 37,877,000 principal | $37,185,745 |
| MICROCHIP TECHNOLOGY INC. | DEP SHS REPSTG | 595017302 | — | 519,375 shares | $34,720,219 |
| CYBERARK SOFTWARE LTD | NOTE 6/1 | 23248VAD7 | — | 18,176,000 principal | $34,034,560 |
| POST HLDGS INC | NOTE 2.500% 8/1 | 737446AT1 | — | 33,960,000 principal | $33,535,500 |
| LIBERTY MEDIA CORP DEL | NOTE 2.250% 8/1 | 531229AQ5 | — | 28,022,000 principal | $32,858,587 |
| FRESHPET INC | NOTE 3.000% 4/0 | 358039AB1 | — | 28,656,000 principal | $32,302,476 |
| IRHYTHM HOLDINGS INC | NOTE 1.500% 9/0 | 450056AB2 | — | 29,518,000 principal | $31,407,152 |
| LIVE NATION ENTERTAINMENT IN | NOTE 2.875% 1/1 | 538034BC2 | — | 28,500,000 principal | $31,275,987 |
| ORACLE CORP | 6.5 DEP CUM SR D | 68389X204 | — | 698,485 shares | $30,649,522 |
| UNITY SOFTWARE INC | NOTE 3/1 | 91332UAH4 | — | 22,383,000 principal | $30,069,891 |
| AFFIRM HLDGS INC | NOTE 0.750%12/1 | 00827BAD8 | — | 28,879,000 principal | $30,052,735 |
| AKAMAI TECHNOLOGIES INC | NOTE 0.375% 9/0 | 00971TAL5 | — | 26,957,000 principal | $30,015,291 |
| AXON ENTERPRISE INC | NOTE 9/1 | 05464CAE1 | — | 30,386,000 principal | $29,958,340 |
| BRIDGEBIO PHARMA INC | NOTE 2.250% 2/0 | 10806XAD4 | — | 29,011,000 principal | $29,810,601 |
| ETSY INC | NOTE 1.000% 6/1 | 29786AAQ9 | — | 26,904,000 principal | $29,802,082 |
| GUIDEWIRE SOFTWARE INC | NOTE 1.250%11/0 | 40171VAC4 | — | 30,398,000 principal | $29,759,642 |
| WESTERN DIGITAL CORP | NOTE 3.000%11/1 | 958102AT2 | — | 2,369,000 principal | $28,387,710 |
| NEBIUS GROUP N.V. | NOTE 1.000% 9/1 | 63954QAG1 | — | 14,220,000 principal | $26,329,626 |
| DROPBOX INC | NOTE 3/0 | 26210CAD6 | — | 23,099,000 principal | $25,621,386 |
| PELOTON INTERACTIVE INC | NOTE 5.500%12/0 | 70614WAD2 | — | 17,864,000 principal | $25,474,064 |
| NORTHERN OIL & GAS INC | NOTE 3.625% 4/1 | 665531AJ8 | — | 25,325,000 principal | $25,456,446 |
| FLUOR CORP | NOTE 1.125% 8/1 | 343412AJ1 | — | 20,591,000 principal | $25,455,624 |
| SIRIUSXM HOLDINGS INC | NOTE 3.750% 3/1 | 531229AP7 | — | 23,328,000 principal | $24,861,816 |
| NOVA LTD | NOTE 9/1 | 66982MAB0 | — | 17,551,000 principal | $24,681,094 |
| PROGRESS SOFTWARE CORP | NOTE 3.500% 3/0 | 743312AD2 | — | 25,048,000 principal | $24,596,837 |
| RUBRIK INC. | NOTE 6/1 | 781154AD1 | — | 20,589,000 principal | $24,593,561 |
| ON SEMICONDUCTOR CORP | NOTE 5/0 | 682189AS4 | — | 16,360,000 principal | $24,294,600 |
| PARSONS CORP DEL | NOTE 2.625% 3/0 | 70202LAD4 | — | 24,984,000 principal | $23,508,836 |
| ITRON INC | NOTE 1.375% 7/1 | 465741AQ9 | — | 24,353,000 principal | $23,476,292 |
| ARROWHEAD PHARMACEUTICALS IN | NOTE 1/1 | 04280AAC4 | — | 22,819,000 principal | $23,364,315 |
| BURLINGTON STORES INC | NOTE 1.250%12/1 | 122017AD8 | — | 16,755,000 principal | $22,929,218 |
| DOORDASH INC | NOTE 5/1 | 25809KAB1 | — | 23,650,000 principal | $22,544,363 |
| BLACKROCK MUN TARGET TERM TR | COM SHS BEN IN | 09257P105 | — | 1,031,187 shares | $22,521,124 |
| TEMPUS AI INC | NOTE 0.750% 7/1 | 88023BAE3 | — | 17,776,000 principal | $22,357,764 |
| WESTERN DIGITAL CORP | NOTE 3.000%11/1 | 958102AT2 | — | 1,850,000 principal | $22,150,032 |
| ARES MANAGEMENT CORPORATION | 6.75 SE B PFD | 03990B309 | — | 559,650 shares | $21,414,042 |
| BLACKROCK MUN TARGET TERM TR | COM SHS BEN IN | 09257P105 | — | 936,793 shares | $20,459,559 |
| MERITAGE HOMES CORP | NOTE 1.750% 5/1 | 59001ABF8 | — | 20,412,000 principal | $19,627,857 |
| PATRICK INDS INC | NOTE 1.750%12/0 | 703343AG8 | — | 16,420,000 principal | $19,607,653 |
| GREENBRIER COS INC | NOTE 2.875% 4/1 | 393657AM3 | — | 18,463,000 principal | $19,290,017 |
| SYNAPTICS INC | NOTE 0.750%12/0 | 87157DAJ8 | — | 15,300,000 principal | $19,226,170 |
| BIOMARIN PHARMACEUTICAL INC | NOTE 1.250% 5/1 | 09061GAK7 | — | 19,573,000 principal | $19,122,856 |
| ISHARES GOLD TR | ISHARES NEW | 464285204 | — | 235,500 shares | $18,392,550 |
| ALPHABET INC | DEP SHS RP1/20 A | 02079K404 | — | 366,533 shares | $17,989,440 |
| UPSTART HLDGS INC | NOTE 1.000%11/1 | 91680MAF4 | — | 24,225,000 principal | $17,853,825 |
| SHIFT4 PMTS INC | NOTE 0.500% 8/0 | 82452JAD1 | — | 18,090,000 principal | $17,455,601 |
| RIVIAN AUTOMOTIVE INC | NOTE 4.625% 3/1 | 76954AAB9 | — | 15,473,000 principal | $17,055,913 |
| NUTANIX INC | NOTE 0.500%12/1 | 67059NAK4 | — | 15,180,000 principal | $16,540,303 |
| NINE ENERGY SERVICE INC | COMMON STOCK | 65441V200 | — | 2,116,912 shares | $15,834,502 |
| ZSCALER INC | NOTE 7/1 | 98980GAD4 | — | 16,560,000 principal | $15,630,982 |
| WORKIVA INC | NOTE 1.250% 8/1 | 98139AAD7 | — | 16,140,000 principal | $15,433,875 |
| BANK OF AMER CORP | 7.25%CNV PFD L | 060505682 | — | 12,072 shares | $14,759,106 |
| DEXCOM INC | NOTE 0.375% 5/1 | 252131AM9 | — | 15,040,000 principal | $14,239,120 |
| CABLE ONE INC | NOTE 1.125% 3/1 | 12685JAG0 | — | 53,520,000 principal | $13,915,200 |
| GULFPORT ENERGY CORP | COMMON SHARES | 402635502 | — | 89,593 shares | $13,481,955 |
| TALOS ENERGY INC | COM | 87484T108 | — | 818,453 shares | $13,365,337 |
| HEWLETT PACKARD ENTERPRISE C | 7.625 MAND CONV | 42824C208 | — | 80,378 shares | $13,146,626 |
| WELLS FARGO & CO | PERP PFD CNV A | 949746804 | — | 11,552 shares | $12,489,463 |
| BLACKROCK MUNIHOLDINGS FD IN | COM | 09253N104 | — | 1,186,520 shares | $12,173,695 |
| ALNYLAM PHARMACEUTICALS INC | NOTE 1.000% 9/1 | 02043QAB3 | — | 11,204,000 principal | $12,136,599 |
| EURONET WORLDWIDE INC | NOTE 0.625%10/0 | 298736AN9 | — | 14,180,000 principal | $12,127,261 |
| BILL HOLDINGS INC | NOTE 4/0 | 090043AF7 | — | 13,980,000 principal | $11,832,191 |
| BLACKROCK MUNIYIELD N Y QUAL | COM | 09255E102 | — | 1,349,144 shares | $11,818,501 |
| SNOWFLAKE INC | NOTE 10/0 | 833445AB5 | — | 5,421,000 principal | $11,698,518 |
| ALPHABET INC | DEP SHS RP1/20 B | 02079K602 | — | 237,105 shares | $11,596,806 |
| PG&E CORP | NOTE 4.250%12/0 | 69331CAL2 | — | 10,964,000 principal | $10,750,202 |
| IMPINJ INC | NOTE 9/1 | 453204AF6 | — | 10,175,000 principal | $10,612,173 |
| GLOBAL PMTS INC | NOTE 1.500% 3/0 | 37940XAU6 | — | 11,829,000 principal | $10,521,896 |
| AKAMAI TECHNOLOGIES INC | NOTE 0.375% 9/0 | 00971TAL5 | — | 9,155,000 principal | $10,170,747 |
| BLACKROCK MUNIYILD QULT FD I | COM | 09254F100 | — | 989,951 shares | $9,830,213 |
| MGP INGREDIENTS INC NEW | NOTE 1.875%11/1 | 55303JAB2 | — | 9,940,000 principal | $9,816,263 |
| NEXTERA ENERGY INC | UNIT 02/15/2029 | 65339F655 | — | 222,912 shares | $9,607,507 |
| GUARDANT HEALTH INC | NOTE 11/1 | 40131MAB5 | — | 6,971,000 principal | $9,524,756 |
| CABLE ONE INC | NOTE 1.125% 3/1 | 12685JAG0 | — | 35,718,000 principal | $9,286,680 |
| CLOUDFLARE INC | NOTE 6/1 | 18915MAF4 | — | 5,813,000 principal | $9,160,532 |
| BANK OF AMER CORP | 7.25%CNV PFD L | 060505682 | — | 7,341 shares | $8,963,067 |
| BLACKROCK MUNIYIELD N Y QUAL | COM | 09255E102 | — | 1,000,543 shares | $8,764,757 |
| BLACKROCK MUNIHOLDINGS FD IN | COM | 09253N104 | — | 795,835 shares | $8,165,267 |
| UBER TECHNOLOGIES INC | NOTE 0.875%12/0 | 90353TAM2 | — | 6,919,000 principal | $7,910,354 |
| REVOLUTION MEDICINES INC | NOTE 0.500% 5/0 | 76155XAA8 | — | 6,152,000 principal | $7,898,061 |
| VERTEX INC | NOTE 0.750% 5/0 | 92538JAB2 | — | 8,473,000 principal | $7,538,852 |
| HALOZYME THERAPEUTICS INC | NOTE 0.250% 3/0 | 40637HAD1 | — | 5,251,000 principal | $7,475,586 |
| LIFE360 INC | NOTE 6/0 | 532206AC3 | — | 8,200,000 principal | $7,427,150 |
| LIVE NATION ENTERTAINMENT IN | NOTE 3.125% 1/1 | 538034BA6 | — | 4,550,000 principal | $7,420,231 |
| SPECTRUM BRANDS INC | NOTE 3.375% 6/0 | 84762LAZ8 | — | 7,412,000 principal | $7,349,137 |
| FRESHPET INC | NOTE 3.000% 4/0 | 358039AB1 | — | 6,356,000 principal | $7,140,966 |