MACKAY SHIELDS LLC

CIK 0000061227 • 6 13F filings • Apr 29, 2025 – Jul 28, 2026

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Filer information

Filed by, address, phone, and AUM appear here after the 13f-holdings-enricher runs (it reads the SEC cover page for each filing).

AUM over time

$0 latest

Sector allocation over time

Past 5 quarters

Q4 2025

Q3 2025

Q2 2026

Q2 2025

Q1 2026

TechnologyFinancialsIndustrialsOther

Holdings by filing

Portfolio value: $3.12B7 positionsView on SEC.gov

			% of Portfolio
ABRDN NATL MUN INCOME FD	SH BEN INT	$3.9M	0.1%Prev: 0.1%	401,695 SH	Decreased
ADVANCED ENERGY INDS	NOTE 2.500% 9/1	$54.6M	1.7%Prev: 3.5%	45,386,000 PRN	Decreased+5,742,000 PRN
AKAMAI TECHNOLOGIES INC	NOTE 0.375% 9/0	$42.7M	1.4%Prev: 1.4%	43,963,000 PRN	Increased+10,144,000 PRN
ALNYLAM PHARMACEUTICALS INC	NOTE 1.000% 9/1	$19.9M	0.6%Prev: 0.7%	15,268,000 PRN	Increased+424,000 PRN
AMERICAN AIRLINES GROUP INC	NOTE 6.500% 7/0	$2.3M	0.1%	2,315,000 PRN	New
AMPHASTAR PHARMACEUTICALS IN	NOTE 2.000% 3/1	$17.4M	0.6%	20,125,000 PRN	New
APOLLO GLOBAL MGMT INC	SER A MAND CNV	$54.6M	1.7%Prev: 1.5%	725,064 SH	Increased+11,255 SH
ARES MANAGEMENT CORPORATION	6.75 SE B PFD	$26.1M	0.8%Prev: 0.7%	479,590 SH	Increased-444 SH
BANK AMERICA CORP	7.25%CNV PFD L	$22.1M	0.7%Prev: 0.9%	18,140 SH	Decreased-2,727 SH
BENTLEY SYS INC	NOTE 0.125% 1/1	$8.1M	0.3%	8,106,000 PRN	New
BILL HOLDINGS INC	NOTE 12/0	$73K	0.0%	75,000 PRN	New
BIOMARIN PHARMACEUTICAL INC	NOTE 1.250% 5/1	$41.8M	1.3%Prev: 0.9%	44,297,000 PRN	Increased+17,795,000 PRN
BLACKLINE INC	NOTE 1.000% 6/0	$1.1M	0.0%Prev: 0.0%	1,000,000 PRN	Increased+365,000 PRN
BLACKROCK INVT QUALITY MUN T	COM	$1.0M	0.0%	92,077 SH	New
BLACKROCK MUN INCOME QUALITY	COM	$5.1M	0.2%	481,061 SH	New
BLACKROCK MUN INCOME TR	SH BEN INT	$8.0M	0.3%	833,784 SH	New
BLACKROCK MUN TARGET TERM TR	COM SHS BEN IN	$34.2M	1.1%Prev: 1.3%	1,563,907 SH	Decreased-2,355 SH
BLACKROCK MUNI INCOME TR II	COM	$5.8M	0.2%	577,670 SH	New
BLACKROCK MUNIHLDGS NJ QLTY	COM	$13.7M	0.4%Prev: 0.5%	1,251,050 SH	Increased+103,118 SH
BLACKROCK MUNIHLDGS NY QLTY	COM	$11.7M	0.4%	1,193,269 SH	New
BLACKROCK MUNIHLDNGS CALI QL	COM	$10.2M	0.3%	981,667 SH	New
BLACKROCK MUNIHOLDINGS FD IN	COM	$23.8M	0.8%Prev: 0.8%	2,126,547 SH	Increased+144,192 SH
BLACKROCK MUNIVEST FD II INC	COM	$678K	0.0%	65,678 SH	New
BLACKROCK MUNIVEST FD INC	COM	$8.7M	0.3%	1,320,857 SH	New
BLACKROCK MUNIYIELD FD INC	COM	$7.5M	0.2%	744,760 SH	New
BLACKROCK MUNIYIELD MICH QU	COM	$7.3M	0.2%Prev: 0.3%	664,819 SH	Decreased+5,850 SH
BLACKROCK MUNIYIELD N Y QUAL	COM	$11.2M	0.4%Prev: 0.8%	1,174,171 SH	Decreased-1,175,516 SH
BLACKROCK MUNIYIELD QUALITY	COM	$10.8M	0.3%Prev: 0.2%	1,115,038 SH	Increased+588,782 SH
BLACKROCK MUNIYILD QULT FD I	COM	$4.0M	0.1%Prev: 0.6%	357,837 SH	Decreased-1,236,182 SH
BLACKROCK N Y MUN INCOME TRU	SH BEN INT	$2.1M	0.1%	218,559 SH	New
BOEING CO	DEP CONV PFD A	$57.7M	1.8%Prev: 2.0%	845,723 SH	Increased+16,309 SH
BRIDGEBIO PHARMA INC	NOTE 2.250% 2/0	$27.1M	0.9%Prev: 1.4%	28,922,000 PRN	Decreased-4,393,000 PRN
BURLINGTON STORES INC	NOTE 1.250%12/1	$26.6M	0.9%Prev: 1.2%	20,561,000 PRN	Decreased+182,000 PRN
CABLE ONE INC	NOTE 1.125% 3/1	$48.2M	1.5%Prev: 2.1%	63,030,000 PRN	Decreased-14,329,000 PRN
CABLE ONE INC	NOTE 3/1	$24.0M	0.8%	25,275,000 PRN	New
CHART INDS INC	6.75DP CNV PFD B	$24.4M	0.8%	400,972 SH	New
CHEESECAKE FACTORY INC	NOTE 0.375% 6/1	$21.1M	0.7%Prev: 0.6%	20,582,000 PRN	Increased+5,194,000 PRN
CHEFS WHSE INC	NOTE 2.375%12/1	$54.0M	1.7%Prev: 1.3%	34,578,000 PRN	Increased+10,829,000 PRN
CHEGG INC	NOTE 9/0	$35K	0.0%Prev: 0.0%	45,000 PRN	Decreased
CLOUDFLARE INC	NOTE 8/1	$7.1M	0.2%Prev: 0.2%	6,027,000 PRN	Increased+347,000 PRN
CONMED CORP	NOTE 2.250% 6/1	$24.5M	0.8%	25,848,000 PRN	New
DEXCOM INC	NOTE 0.375% 5/1	$35.3M	1.1%Prev: 1.0%	37,468,000 PRN	Increased+7,498,000 PRN
DROPBOX INC	NOTE 3/0	$30.9M	1.0%Prev: 0.8%	30,524,000 PRN	Increased+6,201,000 PRN
DUKE ENERGY CORP NEW	NOTE 4.125% 4/1	$530K	0.0%Prev: 0.0%	500,000 PRN	Decreased
DWS MUN INCOME TR NEW	COM	$1.2M	0.0%	130,807 SH	New
EATON VANCE MUN BD FD	COM	$3.9M	0.1%Prev: 0.0%	400,187 SH	Increased+274,423 SH
EATON VANCE NEW YORK MUN BD	COM	$3.9M	0.1%	421,971 SH	New
ENVISTA HOLDINGS CORPORATION	NOTE 1.750% 8/1	$13.9M	0.4%	14,908,000 PRN	New
ETSY INC	NOTE 0.125%10/0	$36.4M	1.2%Prev: 1.2%	37,601,000 PRN	Increased+4,865,000 PRN
EXACT SCIENCES CORP	NOTE 0.375% 3/0	$3.8M	0.1%	4,176,000 PRN	New
EXPEDIA GROUP INC	NOTE 2/1	$6.0M	0.2%	6,177,000 PRN	New
FIVE9 INC	NOTE 1.000% 3/1	$11.4M	0.4%Prev: 0.2%	12,970,000 PRN	Increased+6,705,000 PRN
FLUOR CORP	NOTE 1.125% 8/1	$35.3M	1.1%Prev: 1.2%	26,904,000 PRN	Increased+592,000 PRN
FORD MTR CO	NOTE 3/1	$30.6M	1.0%	30,950,000 PRN	New
FORUM ENERGY TECHNOLOGIES IN	COM	$15.8M	0.5%	809,235 SH	New
GLOBAL PMTS INC	NOTE 1.500% 3/0	$24.6M	0.8%Prev: 0.4%	27,430,000 PRN	Increased+14,551,000 PRN
GREENBRIER COS INC	NOTE 2.875% 4/1	$20.5M	0.7%Prev: 0.8%	19,205,000 PRN	Decreased+173,000 PRN
GULFPORT ENERGY CORP	COMMON SHARES	$3.1M	0.1%Prev: 0.8%	15,288 SH	Decreased-83,304 SH
HAEMONETICS CORP MASS	NOTE 3/0	$20.8M	0.7%	21,488,000 PRN	New
HALOZYME THERAPEUTICS INC	NOTE 1.000% 8/1	$49.8M	1.6%	43,628,000 PRN	New
HEWLETT PACKARD ENTERPRISE C	7.625 MAND CONV	$35.9M	1.2%Prev: 1.4%	608,240 SH	Decreased+6,384 SH
IMPINJ INC	NOTE 1.125% 5/1	$12.4M	0.4%	9,965,000 PRN	New
INTEGER HLDGS CORP	NOTE 2.125% 2/1	$6.2M	0.2%Prev: 0.2%	4,110,000 PRN	Increased+265,000 PRN
INVESCO ADVANTAGE MUN INCOME	SH BEN INT	$3.4M	0.1%Prev: 0.0%	404,961 SH	Increased+359,641 SH
INVESCO MUN OPPORTUNITY TR	COM	$2.8M	0.1%	307,705 SH	New
INVESCO MUNICIPAL TRUST	COM	$3.0M	0.1%Prev: 0.1%	325,107 SH	Increased+116,293 SH
INVESCO PA VALUE MUN INC TR	COM	$145K	0.0%	14,433 SH	New
INVESCO QUALITY MUN INCOME T	COM	$1.7M	0.1%	186,566 SH	New
INVESCO TR INVT GRADE MUNS	COM	$3.5M	0.1%Prev: 0.1%	370,162 SH	Increased+160,995 SH
IONIS PHARMACEUTICALS INC	NOTE 1.750% 6/1	$29.3M	0.9%Prev: 0.6%	27,793,000 PRN	Increased+17,383,000 PRN
IONIS PHARMACEUTICALS INC	NOTE 4/0	$2.9M	0.1%	2,905,000 PRN	New
IRHYTHM TECHNOLOGIES INC	NOTE 1.500% 9/0	$39.7M	1.3%	30,856,000 PRN	New
ISHARES GOLD TR	ISHARES NEW	$34.6M	1.1%Prev: 1.3%	555,000 SH	Increased+164,850 SH
JAZZ INVESTMENTS I LTD	NOTE 2.000% 6/1	$26.8M	0.9%Prev: 0.6%	26,453,000 PRN	Increased+13,366,000 PRN
KOSMOS ENERGY LTD	NOTE 3.125% 3/1	$22.0M	0.7%	32,707,000 PRN	New
LANTHEUS HLDGS INC	NOTE 2.625%12/1	$71.0M	2.3%Prev: 2.2%	55,828,000 PRN	Increased+4,930,000 PRN
LIBERTY MEDIA CORP DEL	NOTE 2.250% 8/1	$46.1M	1.5%Prev: 1.4%	34,606,000 PRN	Increased+634,000 PRN
LIBERTY MEDIA CORP DEL	NOTE 3.750% 3/1	$31.1M	1.0%Prev: 0.9%	29,835,000 PRN	Increased+5,377,000 PRN
LIVE NATION ENTERTAINMENT IN	NOTE 3.125% 1/1	$7.8M	0.2%Prev: 0.3%	5,060,000 PRN	Increased+334,000 PRN
LUMENTUM HLDGS INC	NOTE 0.500% 6/1	$31.6M	1.0%Prev: 5.3%	30,445,000 PRN	Decreased+3,659,000 PRN
LUMENTUM HLDGS INC	NOTE 0.500%12/1	$6.0M	0.2%Prev: 0.6%	5,091,000 PRN	Decreased+2,891,000 PRN
LUMENTUM HLDGS INC	NOTE 1.500%12/1	$13.9M	0.4%	9,060,000 PRN	New
MERITAGE HOMES CORP	NOTE 1.750% 5/1	$36.2M	1.2%Prev: 1.0%	37,250,000 PRN	Increased+9,125,000 PRN
MFS MUN INCOME TR	SH BEN INT	$1.7M	0.1%Prev: 0.1%	333,155 SH	Decreased
MGP INGREDIENTS INC NEW	NOTE 1.875%11/1	$18.5M	0.6%Prev: 0.5%	19,555,000 PRN	Increased+5,268,000 PRN
MICROCHIP TECHNOLOGY INC.	DEP SHS REPSTG	$40.9M	1.3%Prev: 1.3%	612,603 SH	Increased+11,556 SH
MIRUM PHARMACEUTICALS INC	NOTE 4.000% 5/0	$49.5M	1.6%Prev: 2.5%	27,886,000 PRN	Decreased+4,832,000 PRN
MKS INC.	NOTE 1.250% 6/0	$36.9M	1.2%Prev: 2.2%	37,307,000 PRN	Decreased+797,000 PRN
NCL CORP LTD	NOTE 1.125% 2/1	$38.7M	1.2%Prev: 1.4%	39,299,000 PRN	Increased+408,000 PRN
NCL CORP LTD	NOTE 5.375% 8/0	$4.5M	0.1%	4,046,000 PRN	New
NEUBERGER BERMAN MUN FD INC	COM	$11.6M	0.4%	1,180,981 SH	New
NEXTERA ENERGY INC	UNIT 09/01/2025	$48.0M	1.5%	1,204,627 SH	New
NICE LTD	NOTE 9/1	$57.6M	1.8%	58,184,000 PRN	New
NINE ENERGY SERVICE INC	COM	$93K	0.0%	120,184 SH	New
NORTHERN OIL & GAS INC	NOTE 3.625% 4/1	$33.7M	1.1%Prev: 1.3%	32,180,000 PRN	Decreased-1,116,000 PRN
NUTANIX INC	NOTE 0.250%10/0	$57.6M	1.8%Prev: 0.2%	40,832,000 PRN	Increased+36,228,000 PRN
NUVEEN AMT FREE MUN CR INC F	COM	$28.8M	0.9%	2,411,254 SH	New
NUVEEN AMT FREE QLTY MUN INC	COM	$43.7M	1.4%	4,002,639 SH	New
NUVEEN CA QUALTY MUN INCOME	COM	$24.0M	0.8%	2,150,869 SH	New
NUVEEN MUNICIPAL CREDIT INC	COM SH BEN INT	$35.4M	1.1%	2,972,732 SH	New
NUVEEN NEW YORK AMT QLT MUNI	COM	$7.9M	0.3%	797,635 SH	New
NUVEEN NEW YORK QLT MUN INC	COM	$611K	0.0%	53,530 SH	New
NUVEEN PENNSYLVANIA QLT MUN	COM	$2.6M	0.1%	233,310 SH	New
NUVEEN QUALITY MUNCP INCOME	COM	$25.2M	0.8%	2,227,951 SH	New
NUVEEN TAXABLE MUNICPAL INM	COM	$2.5M	0.1%	156,775 SH	New
OIL STS INTL INC	NOTE 4.750% 4/0	$21.3M	0.7%	21,321,000 PRN	New
OKTA INC	NOTE 0.125% 9/0	$13.7M	0.4%	13,787,000 PRN	New
ON SEMICONDUCTOR CORP	NOTE 5/0	$53.6M	1.7%Prev: 1.9%	45,179,000 PRN	Increased+6,008,000 PRN
PARSONS CORP DEL	NOTE 2.625% 3/0	$28.2M	0.9%Prev: 0.9%	26,439,000 PRN	Increased+306,000 PRN
PATRICK INDS INC	NOTE 1.750%12/0	$43.6M	1.4%Prev: 1.2%	29,354,000 PRN	Increased+10,218,000 PRN
PEBBLEBROOK HOTEL TR	NOTE 1.750%12/1	$4.8M	0.2%	5,111,000 PRN	New
PERMIAN RES OPER LLC	NOTE 3.250% 4/0	$35.8M	1.1%	14,774,000 PRN	New
PG&E CORP	NOTE 4.250%12/0	$60.3M	1.9%Prev: 1.8%	60,652,000 PRN	Increased+14,268,000 PRN
PIONEER MUNICIPAL HIGH INCOM	COM	$6.1M	0.2%	736,710 SH	New
PIONEER MUNICIPAL HIGH INCOM	COM SHS	$7.1M	0.2%	777,329 SH	New
POST HLDGS INC	NOTE 2.500% 8/1	$67.0M	2.1%Prev: 1.6%	58,538,000 PRN	Increased+18,310,000 PRN
PPL CAP FDG INC	NOTE 2.875% 3/1	$541K	0.0%Prev: 0.0%	500,000 PRN	Decreased
PROGRESS SOFTWARE CORP	NOTE 3.500% 3/0	$33.7M	1.1%Prev: 0.9%	29,034,000 PRN	Increased+341,000 PRN
Q2 HLDGS INC	NOTE 0.750% 6/0	$30.8M	1.0%Prev: 0.5%	25,829,000 PRN	Increased+12,548,000 PRN
QXO INC	5.50 DEP PFD	$56.6M	1.8%Prev: 2.4%	918,702 SH	Decreased-251,659 SH
RAPID7 INC	NOTE 1.250% 3/1	$11.5M	0.4%	12,965,000 PRN	New
RIVIAN AUTOMOTIVE INC	NOTE 4.625% 3/1	$19.2M	0.6%Prev: 0.7%	18,845,000 PRN	Decreased+258,000 PRN
SEAGATE HDD CAYMAN	NOTE 3.500% 6/0	$54.3M	1.7%Prev: 1.2%	30,140,000 PRN	Increased+23,502,000 PRN
SHIFT4 PMTS INC	NOTE 0.500% 8/0	$43.0M	1.4%Prev: 0.7%	40,000,000 PRN	Increased+20,468,000 PRN
SHIFT4 PMTS INC	NOTE 12/1	$6.2M	0.2%	4,945,000 PRN	New
SOLAREDGE TECHNOLOGIES INC	NOTE 9/1	$3.1M	0.1%	3,166,000 PRN	New
SOUTHERN CO	NOTE 3.875%12/1	$720K	0.0%	650,000 PRN	New
SPDR GOLD TR	GOLD SHS	$4.7M	0.1%Prev: 0.2%	15,336 SH	Decreased
SPECTRUM BRANDS INC	NOTE 3.375% 6/0	$15.1M	0.5%Prev: 0.3%	16,540,000 PRN	Increased+8,683,000 PRN
SUMMIT HOTEL PPTYS	NOTE 1.500% 2/1	$13.0M	0.4%	13,391,000 PRN	New
TALOS ENERGY INC	COM	$26.6M	0.9%Prev: 0.8%	3,132,176 SH	Increased+1,803,079 SH
TELADOC HEALTH INC	NOTE 1.250% 6/0	$14.4M	0.5%Prev: 0.3%	15,539,000 PRN	Increased+8,034,000 PRN
TETRA TECH INC NEW	DBCV 2.250% 8/1	$72.8M	2.3%Prev: 2.1%	64,507,000 PRN	Increased+9,989,000 PRN
TRANSMEDICS GROUP INC	NOTE 1.500% 6/0	$9.8M	0.3%	6,117,000 PRN	New
TURNING PT BRANDS INC	COM	$515K	0.0%	6,802 SH	New
TYLER TEX INDPT SCH DIST	NOTE 0.250% 3/1	$38.3M	1.2%	31,006,000 PRN	New
UBER TECHNOLOGIES INC	NOTE 0.875%12/0	$61.8M	2.0%Prev: 2.0%	43,173,000 PRN	Increased-2,179,000 PRN
VAIL RESORTS INC	NOTE 1/0	$5.8M	0.2%	5,959,000 PRN	New
VERTEX INC	NOTE 0.750% 5/0	$22.0M	0.7%Prev: 0.3%	18,323,000 PRN	Increased+9,138,000 PRN
VODAFONE GROUP PLC NEW	SPONSORED ADR	$6.3M	0.2%	591,424 SH	New
WELLS FARGO CO NEW	PERP PFD CNV A	$18.6M	0.6%	15,779 SH	New
WESTERN DIGITAL CORP	NOTE 3.000%11/1	$34.9M	1.1%Prev: 4.1%	19,408,000 PRN	Decreased+3,932,000 PRN
WORKIVA INC	NOTE 1.250% 8/1	$15.9M	0.5%Prev: 0.6%	17,070,000 PRN	Increased+220,000 PRN

Sold (vs prior filing)

AEROVIRONMENT INC — $13.0M
AFFIRM HLDGS INC — $25.5M
ARROWHEAD PHARMACEUTICALS IN — $3.1M
BILL HOLDINGS INC — $13.5M
BLACKROCK MUNIHLDNGS CALI — $1.5M
DATADOG INC — $32.8M
FRESHPET INC — $36.6M
GUIDEWIRE SOFTWARE INC — $25.1M
HALOZYME THERAPEUTICS INC — $5.6M
INTEGER HLDGS CORP — $43.3M
INVESCO MUN OPPORTUNIT TR — $1.2M
IRHYTHM HOLDINGS INC — $35.8M
LIVE NATION ENTERTAINMENT IN — $32.1M
NEUBERGER MUN FD INC — $6.3M
NEW YORK LIFE INVTS ACTIVE E — $295K
NEXTERA ENERGY INC — $26.7M
NINE ENERGY SERVICE INC — $25.1M
NUTANIX INC — $26.8M
NUVEEN MUN CR INCOME FD — $678K
NUVEEN NY AMT FREE — $5.3M
… and 13 more

All filings

Open a filing on Jive Data

Filing Date	Quarter	Form	Accession	Portfolio	Filing
Oct 13, 2026	Q3 2026	13F-HR	0000061227-26-000003	—	View
Jan 29, 2026	Q4 2025	13F-HR	0000061227-26-000001	$2.86B	View
Oct 27, 2025	Q3 2025