MacKay Shields LLC
Follow13F filer, CIK 61227, New York, NY
MacKay Shields LLC reported $2,727,560,466 across 111 holdings for the quarter ended 2026-03-31, in a 13F-HR filed 2026-04-27. Its ten largest share positions make up 28.44% of the portfolio.
Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001085146-26-000371
- Period
- 2026-03-31
- Reported value
- $2.73B
- Holdings
- 111
- Top 10 weight
- 28.44%
- New
- 7
- Sold out
- 28
Largest buys vs the previous quarter
| Security | Shares change | Approx. value |
|---|---|---|
| ORACLE CORPnew | +646,846 | $29.7M |
| NINEnew | +3,066,434 | $25.1M |
| MQYadded | +1,236,182 | $13.6M |
| MYNadded | +1,175,516 | $11.3M |
| MYInew | +526,256 | $5.53M |
Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.
Largest sells vs the previous quarter
| Security | Shares change | Approx. value |
|---|---|---|
| TALOreduced | -1,679,338 | -$26.5M |
| BLACKROCK MUNIHLDGS NY QLTYexited | -1,191,469 | -$12.2M |
| BLACKROCK MUNIYEILD QUALITY…exited | -1,008,573 | -$10.1M |
| MUCreduced | -834,486 | -$8.68M |
| BLACKROCK MUN INCOME TRexited | -833,784 | -$8.36M |
Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.
Holdings, Q1 2026
Share positions as resolved from 13F-HR 0001085146-26-000371, largest first. % of portfolio is the value over $2,727,560,466, the sum of the share positions whose value is usable for ratios (method).
| Security | History | Shares | Value | % of portfolio | Change | Latest event | Timeline |
|---|---|---|---|---|---|---|---|
| QXO INCQXO INC | 1,170,361 | $65.3M | 2.39% | -798 | |||
| BAPRABOEING CO | 829,414 | $53.9M | 1.98% | -683 | Timeline | ||
| APOLLO GLOBAL MGMT INCAPOLLO GLOBAL MGMT INC | 713,809 | $42M | 1.54% | -483 | |||
| HEWLETT PACKARD ENTERPRISE CHEWLETT PACKARD ENTERPRISE C | 601,856 | $39M | 1.43% | +3,993 | |||
| BTTBLACKROCK MUN TARGET TERM TR | 1,566,262 | $35.6M | 1.3% | +202,135 | Timeline | ||
| IAUISHARES GOLD TR | 390,150 | $34.4M | 1.26% | -84,850 | Timeline | ||
| MCHPPMICROCHIP TECHNOLOGY INC. | 601,047 | $34.3M | 1.26% | -427 | Timeline | ||
| ORACLE CORPORACLE CORP | 646,846 | $29.7M | 1.09% | new | |||
| NEENEXTERA ENERGY INC | 472,936 | $26.7M | 0.98% | +9,591 | Timeline | ||
| NINENINE ENERGY SERVICE INC | 3,066,434 | $25.1M | 0.92% | new | Timeline | ||
| BANK OF AMER CORPBANK OF AMER CORP | 20,867 | $24.9M | 0.91% | -60 | |||
| MYNBLACKROCK MUNIYIELD N Y QUAL | 2,349,687 | $22.6M | 0.83% | +1,175,516 | Timeline | ||
| MHDBLACKROCK MUNIHOLDINGS FD IN | 1,982,355 | $22.4M | 0.82% | -183,915 | Timeline | ||
| TALOTALOS ENERGY INC | 1,329,097 | $20.9M | 0.77% | -1,679,338 | Timeline | ||
| GPORGULFPORT ENERGY CORP | 98,592 | $20.9M | 0.76% | -10,000 | Timeline | ||
| ARES MANAGEMENT CORPORATIONARES MANAGEMENT CORPORATION | 480,034 | $17.8M | 0.65% | +6,989 | |||
| MQYBLACKROCK MUNIYILD QULT FD I | 1,594,019 | $17.5M | 0.64% | +1,236,182 | Timeline | ||
| WELLS FARGO & COWELLS FARGO & CO | 14,760 | $17.1M | 0.63% | -10 | |||
| MUJBLACKROCK MUNIHLDGS NJ QLTY | 1,147,932 | $13.3M | 0.49% | -84,941 | Timeline | ||
| MIYBLACKROCK MUNIYIELD MICH QU | 658,969 | $7.83M | 0.29% | -5,850 | Timeline | ||
| GLDSPDR GOLD TR | 15,336 | $6.6M | 0.24% | 0 | Timeline | ||
| NBHNEUBERGER MUN FD INC | 623,277 | $6.33M | 0.23% | -610,301 | Timeline | ||
| WBDWARNER BROS DISCOVERY INC | 226,250 | $6.21M | 0.23% | 0 | Timeline | ||
| MYIBLACKROCK MUNIYIELD QUALITY | 526,256 | $5.53M | 0.2% | new | Timeline | ||
| NRKNUVEEN NY AMT FREE | 519,880 | $5.31M | 0.19% | -121,225 | Timeline | ||
| VFLABRDN NATL MUN INCOME FD | 401,695 | $4M | 0.15% | 0 | Timeline | ||
| VGMINVESCO TR INVT GRADE MUNS | 209,167 | $2.06M | 0.08% | -99,376 | Timeline | ||
| VKQINVESCO MUNICIPAL TRUST | 208,814 | $1.99M | 0.07% | -116,293 | Timeline | ||
| MFMABERDEEN MUN INCOME FD | 333,155 | $1.8M | 0.07% | -6,502 | Timeline | ||
| MUCBLACKROCK MUNIHLDNGS CALI | 146,840 | $1.53M | 0.06% | -834,486 | Timeline | ||
| NQPNUVEEN PA INVT QUALITY MUN F | 117,934 | $1.41M | 0.05% | -111,286 | Timeline | ||
| EIMEATON VANCE MUN BD FD | 125,764 | $1.23M | 0.05% | -193,050 | Timeline | ||
| VMOINVESCO MUN OPPORTUNIT TR | 126,255 | $1.2M | 0.04% | -79,083 | Timeline | ||
| NZFNUVEEN MUN CR INCOME FD | 55,659 | $678K | 0.02% | -268,843 | Timeline | ||
| VKIINVESCO ADVANTAGE MUN INCOME | 45,320 | $392K | 0.01% | -60,448 | Timeline | ||
| SECRNYLIM ACTIVE ETF TR | 11,504 | $295K | 0.01% | +368 | Timeline | ||
| WWWW INTL INC | 14,371 | $197K | 0.01% | 0 | Timeline |
Principal amounts
Notes and convertibles filed as a face amount (PRN). A face amount is never added to a share count (H6).
| Security | Type | Amount | Value | Change |
|---|---|---|---|---|
| LUMENTUM HLDGS INCLUMENTUM HLDGS INC NOTE 0.500% 6/1 | principal | 26,786,000 | $144M | -3,251,000 |
| WESTERN DIGITAL CORPWESTERN DIGITAL CORP NOTE 3.000%11/1 | principal | 15,476,000 | $111M | -3,406,000 |
| ADVANCED ENERGY INDSADVANCED ENERGY INDS NOTE 2.500% 9/1 | principal | 39,644,000 | $95.4M | -4,994,000 |
| MIRUM PHARMACEUTICALS INCMIRUM PHARMACEUTICALS INC NOTE 4.000% 5/0 | principal | 23,054,000 | $69M | -2,478,000 |
| LANTHEUS HLDGS INCLANTHEUS HLDGS INC Convertible | principal | 50,898,000 | $61.2M | -5,816,000 |
| MKS INC.MKS INC. NOTE 1.250% 6/0 | principal | 36,510,000 | $60.4M | -38,000 |
| CABLE ONE INCCABLE ONE INC NOTE | principal | 77,359,000 | $58.4M | +7,960,000 |
| TETRA TECH INC NEWTETRA TECH INC NEW DBCV 2.250% 8/1 | principal | 54,518,000 | $57.2M | -5,105,000 |
| UBER TECHNOLOGIES INCUBER TECHNOLOGIES INC NOTE 0.875%12/0 | principal | 45,352,000 | $54.6M | +2,708,000 |
| ON SEMICONDUCTOR CORPON SEMICONDUCTOR CORP NOTE 5/0 | principal | 39,171,000 | $50.6M | -209,000 |
| PG&E CORPPG&E CORP NOTE 4.250%12/0 | principal | 46,384,000 | $48.1M | -5,067,000 |
| POST HLDGS INCPOST HLDGS INC NOTE 2.500% 8/1 | principal | 40,228,000 | $43.6M | -9,286,000 |
| INTEGER HLDGS CORPINTEGER HLDGS CORP DBCV 1.875% 3/1 | principal | 45,159,000 | $43.3M | new |
| LIBERTY MEDIA CORP DELLIBERTY MEDIA CORP DEL NOTE 2.250% 8/1 | principal | 33,972,000 | $39.3M | -64,000 |
| AKAMAI TECHNOLOGIES INCAKAMAI TECHNOLOGIES INC NOTE 0.375% 9/0 | principal | 33,819,000 | $39.2M | -40,000 |
| SNOWFLAKE INCSNOWFLAKE INC NOTE 10/0 | principal | 32,570,000 | $38.5M | +2,717,000 |
| NCL CORP LTDNCL CORP LTD BOND | principal | 38,891,000 | $38M | 0 |
| BRIDGEBIO PHARMA INCBRIDGEBIO PHARMA INC Convertible | principal | 33,315,000 | $37.4M | +4,637,000 |
| NORTHERN OIL & GAS INCNORTHERN OIL & GAS INC NOTE 3.625% 4/1 | principal | 33,296,000 | $36.6M | +3,273,000 |
| FRESHPET INCFRESHPET INC NOTE 3.000% 4/0 | principal | 31,791,000 | $36.6M | +10,444,000 |
| IRHYTHM HOLDINGS INCIRHYTHM HOLDINGS INC NOTE 1.500% 9/0 | principal | 32,631,000 | $35.8M | -51,000 |
| CHEFS WHSE INCCHEFS WHSE INC NOTE 2.375%12/1 | principal | 23,749,000 | $35.1M | -35,000 |
| BURLINGTON STORES INCBURLINGTON STORES INC NOTE 1.250%12/1 | principal | 20,379,000 | $33.7M | 0 |
| PATRICK INDS INCPATRICK INDS INC NOTE 1.750%12/0 | principal | 19,136,000 | $33.2M | -2,012,000 |
| DATADOG INCDATADOG INC NOTE 12/0 | principal | 33,802,000 | $32.8M | 0 |
| FLUOR CORPFLUOR CORP NOTE 1.125% 8/1 | principal | 26,312,000 | $32.5M | +14,000 |
| LIVE NATION ENTERTAINMENT INLIVE NATION ENTERTAINMENT IN Convertible | principal | 29,737,000 | $32.1M | +52,000 |
| ETSY INCETSY INC NOTE 0.125%10/0 | principal | 32,736,000 | $32M | -4,309,000 |
| SEAGATE HDD CAYMANSEAGATE HDD CAYMAN NOTE 3.500% 6/0 | principal | 6,638,000 | $31.5M | -6,655,000 |
| DEXCOM INCDEXCOM INC NOTE 0.375% 5/1 | principal | 29,970,000 | $27.6M | -6,943,000 |
| MERITAGE HOMES CORPMERITAGE HOMES CORP NOTE 1.750% 5/1 | principal | 28,125,000 | $27.2M | -8,245,000 |
| UNITY SOFTWARE INCUNITY SOFTWARE INC NOTE 3/1 | principal | 26,902,000 | $26.8M | new |
| NUTANIX INCNUTANIX INC NOTE 0.500%12/1 | principal | 29,645,000 | $26.8M | +35,000 |
| PELOTON INTERACTIVE INCPELOTON INTERACTIVE INC NOTE 5.500%12/0 | principal | 19,417,000 | $26M | new |
| PARSONS CORP DELPARSONS CORP DEL NOTE 2.625% 3/0 | principal | 26,133,000 | $25.8M | 0 |
| BIOMARIN PHARMACEUTICAL INCBIOMARIN PHARMACEUTICAL INC NOTE 1.250% 5/1 | principal | 26,502,000 | $25.6M | -8,153,000 |
| PROGRESS SOFTWARE CORPPROGRESS SOFTWARE CORP NOTE 3.500% 3/0 | principal | 28,693,000 | $25.6M | +51,000 |
| SIRIUSXM HOLDINGS INCSIRIUSXM HOLDINGS INC NOTE 3.750% 3/1 | principal | 24,458,000 | $25.5M | -5,117,000 |
| AFFIRM HLDGS INCAFFIRM HLDGS INC NOTE 0.750%12/1 | principal | 27,150,000 | $25.5M | +2,891,000 |
| GUIDEWIRE SOFTWARE INCGUIDEWIRE SOFTWARE INC NOTE 1.250%11/0 | principal | 25,147,000 | $25.1M | 0 |
| DROPBOX INCDROPBOX INC NOTE 3/0 | principal | 24,323,000 | $23.1M | 0 |
| GREENBRIER COS INCGREENBRIER COS INC NOTE 2.875% 4/1 | principal | 19,032,000 | $22M | 0 |
| RIVIAN AUTOMOTIVE INCRIVIAN AUTOMOTIVE INC NOTE 4.625% 3/1 | principal | 18,587,000 | $19.9M | +6,000 |
| ALNYLAM PHARMACEUTICALS INCALNYLAM PHARMACEUTICALS INC NOTE 1.000% 9/1 | principal | 14,844,000 | $19.1M | +6,000 |
| SHIFT4 PMTS INCSHIFT4 PMTS INC NOTE 0.500% 8/0 | principal | 19,532,000 | $18.4M | -19,960,000 |
| UPSTART HLDGS INCUPSTART HLDGS INC NOTE 1.000%11/1 | principal | 25,168,000 | $17.9M | 0 |
| SYNAPTICS INCSYNAPTICS INC NOTE 0.750%12/0 | principal | 16,169,000 | $16.8M | 0 |
| JAZZ INVESTMENTS I LTDJAZZ INVESTMENTS I LTD NOTE 2.000% 6/1 | principal | 13,087,000 | $15.9M | 0 |
| WORKIVA INCWORKIVA INC NOTE 1.250% 8/1 | principal | 16,850,000 | $15.8M | 0 |
| IONIS PHARMACEUTICALS INCIONIS PHARMACEUTICALS INC NOTE 1.750% 6/1 | principal | 10,410,000 | $15.7M | 0 |
| LUMENTUM HLDGS INCLUMENTUM HLDGS INC NOTE 0.500%12/1 | principal | 2,200,000 | $15.6M | -2,596,000 |
| CHEESECAKE FACTORY INCCHEESECAKE FACTORY INC NOTE 0.375% 6/1 | principal | 15,388,000 | $15.2M | -63,000 |
| MGP INGREDIENTS INC NEWMGP INGREDIENTS INC NEW NOTE 1.875%11/1 | principal | 14,287,000 | $13.8M | +65,000 |
| BILL HOLDINGS INCBILL HOLDINGS INC NOTE 4/0 | principal | 15,102,000 | $13.5M | 0 |
| Q2 HLDGS INCQ2 HLDGS INC NOTE 0.750% 6/0 | principal | 13,281,000 | $13.2M | -12,249,000 |
| AEROVIRONMENT INCAEROVIRONMENT INC NOTE 7/1 | principal | 13,220,000 | $13M | +3,010,000 |
| GLOBAL PMTS INCGLOBAL PMTS INC NOTE 1.500% 3/0 | principal | 12,879,000 | $11.4M | -4,740,000 |
| VERTEX INCVERTEX INC NOTE 0.750% 5/0 | principal | 9,185,000 | $8M | -8,938,000 |
| SPECTRUM BRANDS INCSPECTRUM BRANDS INC Convertible Bond | principal | 7,857,000 | $7.86M | 0 |
| TELADOC HEALTH INCTELADOC HEALTH INC NOTE 1.250% 6/0 | principal | 7,505,000 | $7.2M | -7,689,000 |
| LIVE NATION ENTERTAINMENT INLIVE NATION ENTERTAINMENT IN NOTE 3.125% 1/1 | principal | 4,726,000 | $7.18M | -63,000 |
| OSI SYSTEMS INCOSI SYSTEMS INC NOTE 2.250% 8/0 | principal | 4,525,000 | $6.93M | +3,000 |
| CLOUDFLARE INCCLOUDFLARE INC NOTE 8/1 | principal | 5,680,000 | $6.65M | -35,000 |
| WEC ENERGY GROUP INCWEC ENERGY GROUP INC Convertible | principal | 5,266,000 | $6.51M | -68,000 |
| SOUTHERN COSOUTHERN CO NOTE 4.500% 6/1 | principal | 5,640,000 | $6.26M | +42,000 |
| HALOZYME THERAPEUTICS INCHALOZYME THERAPEUTICS INC NOTE 0.250% 3/0 | principal | 5,416,000 | $5.62M | +177,000 |
| FIVE9 INCFIVE9 INC CNV | principal | 6,265,000 | $5.47M | -6,540,000 |
| NUTANIX INCNUTANIX INC Convertible | principal | 4,604,000 | $4.69M | +70,000 |
| INTEGER HLDGS CORPINTEGER HLDGS CORP NOTE 2.125% 2/1 | principal | 3,845,000 | $4.54M | +119,000 |
| ARROWHEAD PHARMACEUTICALS INARROWHEAD PHARMACEUTICALS IN Convertible | principal | 3,000,000 | $3.11M | new |
| BLACKLINE INCBLACKLINE INC NOTE 1.000% 6/0 | principal | 635,000 | $598K | 0 |
| PPL CAP FDG INCPPL CAP FDG INC NOTE 2.875% 3/1 | principal | 500,000 | $586K | 0 |
| DUKE ENERGY CORP NEWDUKE ENERGY CORP NEW CONV BND | principal | 500,000 | $552K | 0 |
| CHEGG INCCHEGG INC NOTE 9/0 | principal | 45,000 | $43.4K | 0 |
Sold out in Q1 2026
Positions in the previous quarter's report that this quarter's report no longer lists.
| Security | Shares before | Value before | Type |
|---|---|---|---|
| FORD MOTOR COMPANYFORD MOTOR COMPANY | 30,093,000 | $31.3M | principal |
| TYLER TEX INDPT SCH DISTTYLER TEX INDPT SCH DIST | 30,319,000 | $30.7M | principal |
| CABLE ONE INCCABLE ONE INC | 24,975,000 | $24.7M | principal |
| IMPINJ INCIMPINJ INC | 9,890,000 | $16.1M | principal |
| BLACKROCK MUNIHLDGS NY QLTYBLACKROCK MUNIHLDGS NY QLTY | 1,191,469 | $12.2M | shares |
| RAPID7 INCRAPID7 INC | 12,790,000 | $11.7M | principal |
| BLACKROCK MUNIYEILD QUALITY…BLACKROCK MUNIYEILD QUALITY FU | 1,008,573 | $10.1M | shares |
| HAEMONETICS CORP MASSHAEMONETICS CORP MASS | 8,498,000 | $8.41M | principal |
| BLACKROCK MUN INCOME TRBLACKROCK MUN INCOME TR | 833,784 | $8.36M | shares |
| BLACKROCK MUNIVEST FUNDBLACKROCK MUNIVEST FUND | 1,192,311 | $8.26M | shares |
| AMPHASTAR PHARMACEUTICALS INAMPHASTAR PHARMACEUTICALS IN | 8,733,000 | $8.1M | principal |
| BLACKROCK MUNIYIELD FUNDBLACKROCK MUNIYIELD FUND | 697,362 | $7.32M | shares |
| EXPEDIA GROUP INCEXPEDIA GROUP INC | 6,133,000 | $6.86M | principal |
| CONMED CORPCONMED CORP | 6,973,000 | $6.69M | principal |
| Dropbox IncDropbox Inc | 5,630,000 | $5.58M | principal |
| VAIL RESORTS INCVAIL RESORTS INC | 5,408,000 | $5.4M | principal |
| BLACKROCK MUNICIPAL INCOME …BLACKROCK MUNICIPAL INCOME QUA | 479,613 | $5.25M | shares |
| BENTLEY SYS INCBENTLEY SYS INC | 4,346,000 | $4.34M | principal |
| OIL STS INTL INCOIL STS INTL INC | 4,136,000 | $4.15M | principal |
| BLACKROCK MUNI INCOME TR IIBLACKROCK MUNI INCOME TR II | 363,951 | $3.8M | shares |
| IONIS PHARMACEUTICALS INCIONIS PHARMACEUTICALS INC | 2,768,000 | $3.79M | principal |
| BLACKROCK N Y MUN INCOME TRUBLACKROCK N Y MUN INCOME TRU | 218,559 | $2.22M | shares |
| CWBSPDR SERIES TRUST | 13,633 | $1.22M | shares |
| BLACKROCK INVESTMENT QUALIT…BLACKROCK INVESTMENT QUALITY M | 92,077 | $1.03M | shares |
| KTFDWS MUN INCOME TR | 92,505 | $841K | shares |
| TPBTURNING PT BRANDS INC | 6,802 | $737K | shares |
| BLACKROCK MUNIVEST FUND IIBLACKROCK MUNIVEST FUND II | 65,678 | $710K | shares |
| VPVINVESCO PA VALUE MUN INC TR | 14,433 | $151K | shares |
How Q1 2026 was built
Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).
| Filing | Role | Amendment | Filed | Accepted | Ingested |
|---|---|---|---|---|---|
| 13F-HR 0001085146-26-000371 | base | 2026-04-27 | acceptance time not in the bulk data set |