MacKay Shields LLC
Follow13F filer, CIK 61227, New York, NY
MacKay Shields LLC reported $2,758,030,309 across 103 holdings for the quarter ended 2026-09-30, in a 13F-HR filed 2026-10-13. Its ten largest share positions make up 26.7% of the portfolio.
Accepted , ingested 13F-HR 0000061227-26-000003
- Period
- 2026-09-30
- Reported value
- $2.76B
- Holdings
- 103
- Top 10 weight
- 26.7%
- New
- 9
- Sold out
- 14
Largest buys vs the previous quarter
| Security | Shares change | Approx. value |
|---|---|---|
| ARES MANAGEMENT CORPORATIONadded | +286,818 | $11M |
| ORACLE CORPadded | +237,564 | $10.4M |
| QXO INCadded | +237,760 | $8.82M |
| MFMadded | +753,265 | $3.65M |
| MCHPPadded | +40,854 | $2.73M |
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 |
|---|---|---|
| APOLLO GLOBAL MGMT INCexited | -713,153 | -$43.5M |
| WBDexited | -358,060 | -$9.55M |
| IAUreduced | -92,520 | -$7.23M |
| VFLexited | -401,695 | -$4.17M |
| TALOreduced | -160,126 | -$2.61M |
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, Q3 2026
Share positions as resolved from 13F-HR 0000061227-26-000003, largest first. % of portfolio is the value over $2,758,030,309, the sum of the share positions whose value is usable for ratios (method).
| Security | History | Shares | Value | % of portfolio | Change | Latest event | Timeline |
|---|---|---|---|---|---|---|---|
| GOOGMALPHABET INC | 2,428,006 | $120M | 4.34% | +703 | Timeline | ||
| HEWLETT PACKARD ENTERPRISE CHEWLETT PACKARD ENTERPRISE C | 601,487 | $98.6M | 3.57% | +224 | |||
| QXO INCQXO INC | 1,407,248 | $52.2M | 1.89% | +237,760 | |||
| BAPRABOEING CO | 829,048 | $48.9M | 1.77% | +374 | Timeline | ||
| NEENEXTERA ENERGY INC | 940,950 | $45.9M | 1.66% | 0 | Timeline | ||
| MCHPPMICROCHIP TECHNOLOGY INC. | 644,345 | $43M | 1.56% | +40,854 | Timeline | ||
| BTTBLACKROCK MUN TARGET TERM TR | 1,967,980 | $43M | 1.56% | 0 | Timeline | ||
| ORACLE CORPORACLE CORP | 883,365 | $38.8M | 1.41% | +237,564 | |||
| ARES MANAGEMENT CORPORATIONARES MANAGEMENT CORPORATION | 766,553 | $29.4M | 1.06% | +286,818 | |||
| BANK OF AMER CORPBANK OF AMER CORP | 20,836 | $25.5M | 0.92% | +30 | |||
| NINENINE ENERGY SERVICE INC | 2,988,165 | $22.4M | 0.81% | -23,400 | Timeline | ||
| MYNBLACKROCK MUNIYIELD N Y QUAL | 2,349,687 | $20.6M | 0.75% | 0 | Timeline | ||
| MHDBLACKROCK MUNIHOLDINGS FD IN | 1,982,355 | $20.3M | 0.74% | 0 | Timeline | ||
| IAUISHARES GOLD TR | 235,500 | $18.4M | 0.67% | -92,520 | Timeline | ||
| TALOTALOS ENERGY INC | 1,003,782 | $16.4M | 0.59% | -160,126 | Timeline | ||
| WELLS FARGO & COWELLS FARGO & CO | 14,756 | $15.9M | 0.58% | +8 | |||
| MQYBLACKROCK MUNIYILD QULT FD I | 1,594,019 | $15.8M | 0.57% | 0 | Timeline | ||
| GPORGULFPORT ENERGY CORP | 97,512 | $14.7M | 0.53% | 0 | Timeline | ||
| GOOGNALPHABET INC | 250,000 | $12.2M | 0.44% | 0 | Timeline | ||
| MUJBLACKROCK MUNIHLDGS NJ QLTY | 881,952 | $9.95M | 0.36% | 0 | Timeline | ||
| NEENEXTERA ENERGY INC | 229,887 | $9.91M | 0.36% | +984 | Timeline | ||
| GLDSPDR GOLD TR | 15,336 | $5.84M | 0.21% | 0 | Timeline | ||
| MIYBLACKROCK MUNIYIELD MICH QU | 479,747 | $5.42M | 0.2% | 0 | Timeline | ||
| MFMABERDEEN MUN INCOME FD | 1,087,087 | $5.27M | 0.19% | +753,265 | Timeline | ||
| MYIBLACKROCK MUNIYIELD QUALITY | 439,004 | $4.23M | 0.15% | 0 | Timeline | ||
| MUCBLACKROCK MUNIHLDNGS CALI | 128,815 | $1.26M | 0.05% | 0 | Timeline | ||
| EIMEATON VANCE MUN BD FD | 125,764 | $1.14M | 0.04% | 0 | Timeline | ||
| SECRNYLIM ACTIVE ETF TR | 11,504 | $277K | 0.01% | 0 | Timeline | ||
| WWWW INTL INC | 14,371 | $222K | 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 |
|---|---|---|---|---|
| SNOWFLAKE INCSNOWFLAKE INC NOTE 10/0 | principal | 36,870,000 | $79.6M | +4,329,000 |
| LUMENTUM HLDGS INCLUMENTUM HLDGS INC NOTE 0.500% 6/1 | principal | 10,149,000 | $75M | -2,735,000 |
| MKS INC.MKS INC. NOTE 1.250% 6/0 | principal | 36,475,000 | $66.9M | +5,000 |
| CLOUDFLARE INCCLOUDFLARE INC NOTE 6/1 | principal | 41,867,000 | $66.1M | +16,995,000 |
| REVOLUTION MEDICINES INCREVOLUTION MEDICINES INC NOTE 0.500% 5/0 | principal | 48,743,000 | $62.8M | +18,399,000 |
| UBER TECHNOLOGIES INCUBER TECHNOLOGIES INC NOTE 0.875%12/0 | principal | 51,770,000 | $59.3M | +6,406,000 |
| TETRA TECH INC NEWTETRA TECH INC NEW DBCV 2.250% 8/1 | principal | 52,404,000 | $55.7M | -41,000 |
| WESTERN DIGITAL CORPWESTERN DIGITAL CORP NOTE 3.000%11/1 | principal | 4,403,000 | $52.7M | -4,549,000 |
| PG&E CORPPG&E CORP NOTE 4.250%12/0 | principal | 51,400,000 | $50.4M | +4,947,000 |
| MERIT MED SYS INCMERIT MED SYS INC NOTE 3.000% 2/0 | principal | 38,006,000 | $44.2M | -67,000 |
| AKAMAI TECHNOLOGIES INCAKAMAI TECHNOLOGIES INC NOTE 0.375% 9/0 | principal | 37,876,000 | $42.1M | +3,852,000 |
| FRESHPET INCFRESHPET INC NOTE 3.000% 4/0 | principal | 36,464,000 | $41.1M | +4,664,000 |
| LIBERTY MEDIA CORP DELLIBERTY MEDIA CORP DEL NOTE 2.250% 8/1 | principal | 33,914,000 | $39.8M | +20,000 |
| POST HLDGS INCPOST HLDGS INC NOTE 2.500% 8/1 | principal | 40,191,000 | $39.7M | +30,000 |
| DATADOG INCDATADOG INC NOTE 12/0 | principal | 27,438,000 | $39.5M | 0 |
| GUIDEWIRE SOFTWARE INCGUIDEWIRE SOFTWARE INC NOTE 1.250%11/0 | principal | 39,638,000 | $38.8M | +14,727,000 |
| AFFIRM HLDGS INCAFFIRM HLDGS INC NOTE 0.750%12/1 | principal | 37,054,000 | $38.5M | +9,941,000 |
| UNITY SOFTWARE INCUNITY SOFTWARE INC NOTE 3/1 | principal | 26,935,000 | $36.2M | +31,000 |
| CYBERARK SOFTWARE LTDCYBERARK SOFTWARE LTD NOTE6/1 | principal | 19,004,000 | $35.6M | 0 |
| IRHYTHM HOLDINGS INCIRHYTHM HOLDINGS INC NOTE 1.500% 9/0 | principal | 32,610,000 | $34.7M | +12,000 |
| BRIDGEBIO PHARMA INCBRIDGEBIO PHARMA INC Convertible | principal | 33,241,000 | $34.1M | -18,000 |
| NORTHERN OIL & GAS INCNORTHERN OIL & GAS INC NOTE 3.625% 4/1 | principal | 33,280,000 | $33.4M | +39,000 |
| LIVE NATION ENTERTAINMENT INLIVE NATION ENTERTAINMENT IN Convertible | principal | 29,737,000 | $32.6M | 0 |
| ON SEMICONDUCTOR CORPON SEMICONDUCTOR CORP NOTE 5/0 | principal | 21,969,000 | $32.6M | +20,000 |
| FLUOR CORPFLUOR CORP NOTE 1.125% 8/1 | principal | 26,188,000 | $32.4M | +21,000 |
| ITRON INCITRON INC NOTE 1.375% 7/1 | principal | 32,877,000 | $31.7M | new |
| AXON ENTERPRISE INCAXON ENTERPRISE INC NOTE 9/1 | principal | 32,000,000 | $31.5M | new |
| ETSY INCETSY INC NOTE 1.000% 6/1 | principal | 28,370,000 | $31.4M | new |
| DOORDASH INCDOORDASH INC NOTE 5/1 | principal | 32,353,000 | $30.8M | +7,643,000 |
| PELOTON INTERACTIVE INCPELOTON INTERACTIVE INC NOTE 5.500%12/0 | principal | 21,530,000 | $30.7M | +31,000 |
| PROGRESS SOFTWARE CORPPROGRESS SOFTWARE CORP NOTE 3.500% 3/0 | principal | 28,955,000 | $28.4M | +365,000 |
| ARROWHEAD PHARMACEUTICALS INARROWHEAD PHARMACEUTICALS IN Convertible | principal | 27,193,000 | $27.8M | +6,736,000 |
| NEBIUS GROUP N.V.NEBIUS GROUP N.V. NOTE 1.000% 9/1 | principal | 14,822,000 | $27.4M | new |
| MERITAGE HOMES CORPMERITAGE HOMES CORP NOTE 1.750% 5/1 | principal | 28,105,000 | $27M | +74,000 |
| DROPBOX INCDROPBOX INC NOTE 3/0 | principal | 24,323,000 | $27M | 0 |
| SIRIUSXM HOLDINGS INCSIRIUSXM HOLDINGS INC NOTE 3.750% 3/1 | principal | 24,458,000 | $26.1M | 0 |
| BIOMARIN PHARMACEUTICAL INCBIOMARIN PHARMACEUTICAL INC NOTE 1.250% 5/1 | principal | 26,468,000 | $25.8M | +34,000 |
| RUBRIK INC.RUBRIK INC. Convertible | principal | 21,544,000 | $25.7M | +6,719,000 |
| NOVA LTDNOVA LTD NOTE 9/1 | principal | 18,294,000 | $25.7M | new |
| PARSONS CORP DELPARSONS CORP DEL NOTE 2.625% 3/0 | principal | 26,167,000 | $24.6M | 0 |
| BURLINGTON STORES INCBURLINGTON STORES INC NOTE 1.250%12/1 | principal | 17,598,000 | $24.1M | +69,000 |
| CABLE ONE INCCABLE ONE INC NOTE | principal | 89,763,000 | $23.3M | -125,000 |
| TEMPUS AI INCTEMPUS AI INC NOTE 0.750% 7/1 | principal | 18,554,000 | $23.3M | new |
| PATRICK INDS INCPATRICK INDS INC NOTE 1.750%12/0 | principal | 19,038,000 | $22.7M | -80,000 |
| DEXCOM INCDEXCOM INC NOTE 0.375% 5/1 | principal | 22,472,000 | $21.3M | +57,000 |
| RIVIAN AUTOMOTIVE INCRIVIAN AUTOMOTIVE INC NOTE 4.625% 3/1 | principal | 18,738,000 | $20.6M | +158,000 |
| SYNAPTICS INCSYNAPTICS INC NOTE 0.750%12/0 | principal | 16,119,000 | $20.3M | -50,000 |
| GREENBRIER COS INCGREENBRIER COS INC NOTE 2.875% 4/1 | principal | 19,032,000 | $19.9M | 0 |
| UPSTART HLDGS INCUPSTART HLDGS INC NOTE 1.000%11/1 | principal | 25,168,000 | $18.5M | 0 |
| SHIFT4 PMTS INCSHIFT4 PMTS INC NOTE 0.500% 8/0 | principal | 19,050,000 | $18.4M | -107,000 |
| NUTANIX INCNUTANIX INC NOTE 0.500%12/1 | principal | 16,565,000 | $18M | 0 |
| ZSCALER INCZSCALER INC NOTE 7/1 | principal | 17,300,000 | $16.3M | new |
| ALNYLAM PHARMACEUTICALS INCALNYLAM PHARMACEUTICALS INC NOTE 1.000% 9/1 | principal | 14,813,000 | $16M | -21,000 |
| WORKIVA INCWORKIVA INC NOTE 1.250% 8/1 | principal | 16,585,000 | $15.9M | 0 |
| MGP INGREDIENTS INC NEWMGP INGREDIENTS INC NEW NOTE 1.875%11/1 | principal | 14,254,000 | $14.1M | +11,000 |
| BILL HOLDINGS INCBILL HOLDINGS INC NOTE 4/0 | principal | 14,942,000 | $12.6M | -160,000 |
| EURONET WORLDWIDE INCEURONET WORLDWIDE INC NOTE 0.625%10/0 | principal | 14,660,000 | $12.5M | new |
| IMPINJ INCIMPINJ INC NOTE 9/1 | principal | 11,050,000 | $11.5M | new |
| GLOBAL PMTS INCGLOBAL PMTS INC NOTE 1.500% 3/0 | principal | 12,879,000 | $11.5M | 0 |
| GUARDANT HEALTH INCGUARDANT HEALTH INC NOTE 11/1 | principal | 7,259,000 | $9.92M | +80,000 |
| VERTEX INCVERTEX INC NOTE 0.750% 5/0 | principal | 9,048,000 | $8.05M | -104,000 |
| LIFE360 INCLIFE360 INC CNV | principal | 8,770,000 | $7.94M | -100,000 |
| SPECTRUM BRANDS INCSPECTRUM BRANDS INC Convertible Bond | principal | 7,857,000 | $7.79M | 0 |
| HALOZYME THERAPEUTICS INCHALOZYME THERAPEUTICS INC NOTE 0.250% 3/0 | principal | 5,466,000 | $7.78M | +59,000 |
| LIVE NATION ENTERTAINMENT INLIVE NATION ENTERTAINMENT IN NOTE 3.125% 1/1 | principal | 4,699,000 | $7.66M | +23,000 |
| NUTANIX INCNUTANIX INC Convertible | principal | 4,611,000 | $5.99M | +29,000 |
| WEC ENERGY GROUP INCWEC ENERGY GROUP INC Convertible | principal | 5,168,000 | $5.72M | +6,000 |
| SOUTHERN COSOUTHERN CO NOTE 4.500% 6/1 | principal | 5,595,000 | $5.65M | +26,000 |
| OSI SYSTEMS INCOSI SYSTEMS INC NOTE 2.250% 8/0 | principal | 4,533,000 | $5.54M | +48,000 |
| MIRUM PHARMACEUTICALS INCMIRUM PHARMACEUTICALS INC NOTE 4.000% 5/0 | principal | 1,959,000 | $5.39M | +12,000 |
| SOUTHERN COSOUTHERN CO NOTE 3.250% 6/1 | principal | 5,424,000 | $5.27M | +609,000 |
| IONIS PHARMACEUTICALS INCIONIS PHARMACEUTICALS INC NOTE 1.750% 6/1 | principal | 2,457,000 | $2.69M | +43,000 |
| PPL CAP FDG INCPPL CAP FDG INC NOTE 2.875% 3/1 | principal | 500,000 | $526K | 0 |
| BLACKLINE INCBLACKLINE INC NOTE 1.000% 6/0 | principal | 295,000 | $263K | 0 |
Sold out in Q3 2026
Positions in the previous quarter's report that this quarter's report no longer lists.
| Security | Shares before | Value before | Type |
|---|---|---|---|
| LANTHEUS HLDGS INCLANTHEUS HLDGS INC | 50,863,000 | $74M | principal |
| CHEFS WHSE INCCHEFS WHSE INC | 23,710,000 | $53M | principal |
| ETSY INCETSY INC | 49,886,000 | $50.9M | principal |
| INTEGER HLDGS CORPINTEGER HLDGS CORP | 45,243,000 | $43.9M | principal |
| APOLLO GLOBAL MGMT INCAPOLLO GLOBAL MGMT INC | 713,153 | $43.5M | shares |
| JAZZ INVESTMENTS I LTDJAZZ INVESTMENTS I LTD | 20,318,000 | $34.7M | principal |
| ADVANCED ENERGY INDSADVANCED ENERGY INDS | 4,843,000 | $13.2M | principal |
| WBDWARNER BROS DISCOVERY INC | 358,060 | $9.55M | shares |
| TELADOC HEALTH INCTELADOC HEALTH INC | 7,505,000 | $7.31M | principal |
| CLOUDFLARE INCCLOUDFLARE INC | 5,637,000 | $7.24M | principal |
| FIVE9 INCFIVE9 INC | 6,155,000 | $5.48M | principal |
| INTEGER HLDGS CORPINTEGER HLDGS CORP | 3,756,000 | $4.57M | principal |
| VFLABRDN NATL MUN INCOME FD | 401,695 | $4.17M | shares |
| CHEGG INCCHEGG INC | 45,000 | $43K | principal |
How Q3 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 0000061227-26-000003 | base | 2026-10-13 |