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: $2.86B7 positionsView on SEC.gov

			% of Portfolio
ABRDN NATL MUN INCOME FD	SH BEN INT	$4.1M	0.1%Prev: 0.1%	401,695 SH	Increased
ADVANCED ENERGY INDS	NOTE 2.500% 9/1	$73.3M	2.6%Prev: 2.1%	44,638,000 PRN	Increased-536,000 PRN
AEROVIRONMENT INC	NOTE 7/1	$11.1M	0.4%Prev: 0.4%	10,210,000 PRN	Decreased+122,000 PRN
AFFIRM HLDGS INC	NOTE 0.750%12/1	$26.9M	0.9%	24,259,000 PRN	New
AKAMAI TECHNOLOGIES INC	NOTE 0.375% 9/0	$34.0M	1.2%Prev: 1.4%	33,859,000 PRN	Decreased-9,585,000 PRN
ALNYLAM PHARMACEUTICALS INC	NOTE 1.000% 9/1	$21.8M	0.8%Prev: 0.9%	14,838,000 PRN	Decreased-350,000 PRN
AMPHASTAR PHARMACEUTICALS IN	NOTE 2.000% 3/1	$8.1M	0.3%Prev: 0.4%	8,733,000 PRN	Decreased-2,877,000 PRN
APOLLO GLOBAL MGMT INC	SER A MAND CNV	$53.9M	1.9%Prev: 1.7%	714,292 SH	Increased-7,555 SH
ARES MANAGEMENT CORPORATION	6.75 SE B PFD	$23.9M	0.8%Prev: 0.8%	473,045 SH	Decreased-7,860 SH
BANK AMERICA CORP	7.25%CNV PFD L	$26.2M	0.9%Prev: 0.8%	20,927 SH	Increased+3,343 SH
BENTLEY SYS INC	NOTE 0.125% 1/1	$4.3M	0.2%Prev: 0.2%	4,346,000 PRN	Decreased-315,000 PRN
BILL HOLDINGS INC	NOTE 4/0	$13.9M	0.5%	15,102,000 PRN	New
BIOMARIN PHARMACEUTICAL INC	NOTE 1.250% 5/1	$33.3M	1.2%Prev: 1.1%	34,655,000 PRN	Decreased-551,000 PRN
BLACKLINE INC	NOTE 1.000% 6/0	$671K	0.0%Prev: 0.0%	635,000 PRN	Decreased-365,000 PRN
BLACKROCK INVT QUALITY MUN T	COM	$1.0M	0.0%Prev: 0.0%	92,077 SH	Decreased
BLACKROCK MUN INCOME QUALITY	COM	$5.2M	0.2%Prev: 0.2%	479,613 SH	Decreased
BLACKROCK MUN INCOME TR	SH BEN INT	$8.4M	0.3%Prev: 0.3%	833,784 SH	Decreased
BLACKROCK MUN TARGET TERM TR	COM SHS BEN IN	$31.1M	1.1%Prev: 1.1%	1,364,127 SH	Decreased-55,767 SH
BLACKROCK MUNI INCOME TR II	COM	$3.8M	0.1%Prev: 0.1%	363,951 SH	Decreased
BLACKROCK MUNIHLDGS NJ QLTY	COM	$14.7M	0.5%Prev: 0.5%	1,232,873 SH	Increased
BLACKROCK MUNIHLDGS NY QLTY	COM	$12.2M	0.4%Prev: 0.4%	1,191,469 SH	Increased
BLACKROCK MUNIHLDNGS CALI QL	COM	$10.4M	0.4%Prev: 0.4%	981,326 SH	Decreased
BLACKROCK MUNIHOLDINGS FD IN	COM	$25.4M	0.9%Prev: 0.9%	2,166,270 SH	Decreased
BLACKROCK MUNIVEST FD II INC	COM	$710K	0.0%Prev: 0.0%	65,678 SH	Increased
BLACKROCK MUNIVEST FD INC	COM	$8.3M	0.3%Prev: 0.3%	1,192,311 SH	Decreased-31,554 SH
BLACKROCK MUNIYIELD FD INC	COM	$7.3M	0.3%Prev: 0.3%	697,362 SH	Decreased-14,761 SH
BLACKROCK MUNIYIELD MICH QU	COM	$7.8M	0.3%Prev: 0.3%	664,819 SH	Increased
BLACKROCK MUNIYIELD N Y QUAL	COM	$11.6M	0.4%Prev: 0.4%	1,174,171 SH	Decreased
BLACKROCK MUNIYIELD QUALITY	COM	$10.1M	0.4%Prev: 0.4%	1,008,573 SH	Decreased-18,232 SH
BLACKROCK MUNIYILD QULT FD I	COM	$4.0M	0.1%Prev: 0.1%	357,837 SH	Decreased
BLACKROCK N Y MUN INCOME TRU	SH BEN INT	$2.2M	0.1%Prev: 0.1%	218,559 SH	Increased
BOEING CO	DEP CONV PFD A	$57.7M	2.0%Prev: 2.0%	830,097 SH	Decreased-11,884 SH
BRIDGEBIO PHARMA INC	NOTE 2.250% 2/0	$32.3M	1.1%Prev: 1.0%	28,678,000 PRN	Increased-244,000 PRN
BURLINGTON STORES INC	NOTE 1.250%12/1	$30.3M	1.1%Prev: 0.9%	20,379,000 PRN	Increased-182,000 PRN
CABLE ONE INC	NOTE 1.125% 3/1	$56.7M	2.0%Prev: 2.0%	69,399,000 PRN	Decreased+1,975,000 PRN
CABLE ONE INC	NOTE 3/1	$24.7M	0.9%Prev: 0.8%	24,975,000 PRN	Increased
CHEESECAKE FACTORY INC	NOTE 0.375% 6/1	$15.3M	0.5%Prev: 0.5%	15,451,000 PRN	Decreased-359,000 PRN
CHEFS WHSE INC	NOTE 2.375%12/1	$36.2M	1.3%Prev: 1.2%	23,784,000 PRN	Increased-316,000 PRN
CHEGG INC	NOTE 9/0	$40K	0.0%Prev: 0.0%	45,000 PRN	Increased
CLOUDFLARE INC	NOTE 8/1	$6.7M	0.2%Prev: 0.2%	5,715,000 PRN	Decreased-101,000 PRN
CONMED CORP	NOTE 2.250% 6/1	$6.7M	0.2%Prev: 0.5%	6,973,000 PRN	Decreased-8,426,000 PRN
DATADOG INC	NOTE 12/0	$33.8M	1.2%	33,802,000 PRN	New
DEXCOM INC	NOTE 0.375% 5/1	$34.0M	1.2%Prev: 1.2%	36,913,000 PRN	Decreased-377,000 PRN
DROPBOX INC	NOTE 3/0	$30.2M	1.1%Prev: 1.1%	29,953,000 PRN	Decreased-373,000 PRN
DUKE ENERGY CORP NEW	NOTE 4.125% 4/1	$516K	0.0%Prev: 0.0%	500,000 PRN	Decreased-5,000 PRN
DWS MUN INCOME TR NEW	COM	$841K	0.0%Prev: 0.0%	92,505 SH	Decreased-38,302 SH
EATON VANCE MUN BD FD	COM	$3.1M	0.1%Prev: 0.1%	318,814 SH	Decreased
ETSY INC	NOTE 0.125%10/0	$37.5M	1.3%Prev: 1.3%	37,045,000 PRN	Decreased-448,000 PRN
EXPEDIA GROUP INC	NOTE 2/1	$6.9M	0.2%Prev: 0.2%	6,133,000 PRN	Increased-50,000 PRN
FIVE9 INC	NOTE 1.000% 3/1	$11.6M	0.4%Prev: 0.4%	12,805,000 PRN	Decreased-540,000 PRN
FLUOR CORP	NOTE 1.125% 8/1	$30.0M	1.1%Prev: 1.1%	26,298,000 PRN	Decreased-432,000 PRN
FORD MTR CO	NOTE 3/1	$31.3M	1.1%Prev: 1.1%	30,093,000 PRN	Increased-683,000 PRN
FRESHPET INC	NOTE 3.000% 4/0	$25.0M	0.9%Prev: 0.8%	21,347,000 PRN	Increased-225,000 PRN
GLOBAL PMTS INC	NOTE 1.500% 3/0	$15.8M	0.6%Prev: 0.8%	17,619,000 PRN	Decreased-8,934,000 PRN
GREENBRIER COS INC	NOTE 2.875% 4/1	$20.5M	0.7%Prev: 0.7%	19,032,000 PRN	Decreased-173,000 PRN
GUIDEWIRE SOFTWARE INC	NOTE 1.250%11/0	$27.7M	1.0%	25,147,000 PRN	New
GULFPORT ENERGY CORP	COMMON SHARES	$22.6M	0.8%Prev: 0.8%	108,592 SH	Decreased-22,364 SH
HAEMONETICS CORP MASS	NOTE 3/0	$8.4M	0.3%Prev: 0.3%	8,498,000 PRN	Decreased-451,000 PRN
HALOZYME THERAPEUTICS INC	NOTE 0.250% 3/0	$5.6M	0.2%Prev: 2.0%	5,239,000 PRN	Decreased-45,264,000 PRN
HEWLETT PACKARD ENTERPRISE C	7.625 MAND CONV	$39.6M	1.4%Prev: 1.4%	597,863 SH	Decreased-7,315 SH
IMPINJ INC	NOTE 1.125% 5/1	$16.1M	0.6%Prev: 0.6%	9,890,000 PRN	Decreased-75,000 PRN
INTEGER HLDGS CORP	NOTE 2.125% 2/1	$4.2M	0.1%Prev: 0.2%	3,726,000 PRN	Decreased-235,000 PRN
INVESCO ADVANTAGE MUN INCOME	SH BEN INT	$965K	0.0%Prev: 0.1%	105,768 SH	Decreased-299,193 SH
INVESCO MUN OPPORTUNITY TR	COM	$2.0M	0.1%Prev: 0.1%	205,338 SH	Decreased-102,367 SH
INVESCO MUNICIPAL TRUST	COM	$3.1M	0.1%Prev: 0.1%	325,107 SH
INVESCO PA VALUE MUN INC TR	COM	$151K	0.0%Prev: 0.0%	14,433 SH	Increased
INVESCO TR INVT GRADE MUNS	COM	$3.2M	0.1%Prev: 0.1%	308,543 SH	Decreased-61,619 SH
IONIS PHARMACEUTICALS INC	NOTE 1.750% 6/1	$16.6M	0.6%Prev: 1.3%	10,410,000 PRN	Decreased-17,383,000 PRN
IONIS PHARMACEUTICALS INC	NOTE 4/0	$3.8M	0.1%Prev: 0.1%	2,768,000 PRN	Increased-48,000 PRN
IRHYTHM TECHNOLOGIES INC	NOTE 1.500% 9/0	$45.7M	1.6%Prev: 1.4%	32,682,000 PRN	Increased+1,826,000 PRN
ISHARES GOLD TR	ISHARES NEW	$38.6M	1.3%Prev: 1.3%	475,000 SH	Increased-50,000 SH
JAZZ INVESTMENTS I LTD	NOTE 2.000% 6/1	$15.2M	0.5%Prev: 0.5%	13,087,000 PRN	Increased-279,000 PRN
LANTHEUS HLDGS INC	NOTE 2.625%12/1	$65.1M	2.3%Prev: 2.0%	56,714,000 PRN	Increased+1,041,000 PRN
LIBERTY MEDIA CORP DEL	NOTE 2.250% 8/1	$43.1M	1.5%Prev: 1.6%	34,036,000 PRN	Decreased-397,000 PRN
LIBERTY MEDIA CORP DEL	NOTE 3.750% 3/1	$29.8M	1.0%Prev: 1.1%	29,575,000 PRN	Decreased-260,000 PRN
LIVE NATION ENTERTAINMENT IN	NOTE 2.875% 1/1	$31.3M	1.1%	29,685,000 PRN	New
LIVE NATION ENTERTAINMENT IN	NOTE 3.125% 1/1	$7.0M	0.2%Prev: 0.3%	4,789,000 PRN	Decreased-96,000 PRN
LUMENTUM HLDGS INC	NOTE 0.500% 6/1	$85.3M	3.0%Prev: 1.4%	30,037,000 PRN	Increased-408,000 PRN
LUMENTUM HLDGS INC	NOTE 0.500%12/1	$17.8M	0.6%Prev: 0.3%	4,796,000 PRN	Increased-113,000 PRN
MERITAGE HOMES CORP	NOTE 1.750% 5/1	$35.9M	1.3%Prev: 1.3%	36,370,000 PRN	Decreased-654,000 PRN
MFS MUN INCOME TR	SH BEN INT	$1.8M	0.1%Prev: 0.1%	339,657 SH	Decreased-93,498 SH
MGP INGREDIENTS INC NEW	NOTE 1.875%11/1	$13.8M	0.5%Prev: 0.5%	14,222,000 PRN	Decreased-438,000 PRN
MICROCHIP TECHNOLOGY INC.	DEP SHS REPSTG	$35.1M	1.2%Prev: 1.2%	601,474 SH	Decreased-7,689 SH
MIRUM PHARMACEUTICALS INC	NOTE 4.000% 5/0	$66.0M	2.3%Prev: 2.1%	25,532,000 PRN	Increased-687,000 PRN
MKS INC.	NOTE 1.250% 6/0	$46.7M	1.6%Prev: 1.4%	36,548,000 PRN	Increased-637,000 PRN
NCL CORP LTD	NOTE 1.125% 2/1	$38.9M	1.4%Prev: 1.4%	38,891,000 PRN	Decreased-420,000 PRN
NEUBERGER MUN FD INC	COM	$12.5M	0.4%	1,233,578 SH	New
NEW YORK LIFE INVTS ACTIVE E	NYLI MACKAY SECU	$287K	0.0%	11,136 SH	New
NEXTERA ENERGY INC	UNIT 06/01/2027	$24.0M	0.8%Prev: 0.8%	463,345 SH	Increased-2,126 SH
NORTHERN OIL & GAS INC	NOTE 3.625% 4/1	$29.0M	1.0%Prev: 1.1%	30,023,000 PRN	Decreased-2,009,000 PRN
NUTANIX INC	NOTE 0.250%10/0	$5.1M	0.2%Prev: 1.9%	4,534,000 PRN	Decreased-36,136,000 PRN
NUTANIX INC	NOTE 0.500%12/1	$28.6M	1.0%	29,610,000 PRN	New
NUVEEN MUNICIPAL CREDIT INC	COM SH BEN INT	$4.1M	0.1%Prev: 0.6%	324,502 SH	Decreased-1,081,921 SH
NUVEEN NEW YORK AMT QLT MUNI	COM	$6.5M	0.2%Prev: 0.3%	641,105 SH	Decreased-156,530 SH
NUVEEN PENNSYLVANIA QLT MUN	COM	$2.7M	0.1%Prev: 0.1%	229,220 SH	Decreased-4,090 SH
OIL STS INTL INC	NOTE 4.750% 4/0	$4.2M	0.1%Prev: 0.7%	4,136,000 PRN	Decreased-17,185,000 PRN
ON SEMICONDUCTOR CORP	NOTE 5/0	$47.0M	1.6%Prev: 1.6%	39,380,000 PRN	Increased-599,000 PRN
OSI SYSTEMS INC	NOTE 2.250% 8/0	$6.7M	0.2%Prev: 1.6%	4,522,000 PRN	Decreased-28,014,000 PRN
PARSONS CORP DEL	NOTE 2.625% 3/0	$26.9M	0.9%Prev: 1.0%	26,133,000 PRN	Decreased-308,000 PRN
PATRICK INDS INC	NOTE 1.750%12/0	$36.0M	1.3%Prev: 1.3%	21,148,000 PRN	Decreased-2,205,000 PRN
PG&E CORP	NOTE 4.250%12/0	$53.0M	1.9%Prev: 2.1%	51,451,000 PRN	Decreased-8,988,000 PRN
POST HLDGS INC	NOTE 2.500% 8/1	$53.4M	1.9%Prev: 1.9%	49,514,000 PRN	Decreased-607,000 PRN
PPL CAP FDG INC	NOTE 2.875% 3/1	$549K	0.0%Prev: 0.0%	500,000 PRN	Decreased-3,000 PRN
PROGRESS SOFTWARE CORP	NOTE 3.500% 3/0	$29.0M	1.0%Prev: 1.0%	28,642,000 PRN	Decreased-322,000 PRN
Q2 HLDGS INC	NOTE 0.750% 6/0	$25.9M	0.9%Prev: 0.9%	25,530,000 PRN	Decreased-299,000 PRN
QXO INC	5.50 DEP PFD	$65.0M	2.3%Prev: 2.2%	1,171,159 SH	Decreased-14,926 SH
RAPID7 INC	NOTE 1.250% 3/1	$11.7M	0.4%Prev: 0.4%	12,790,000 PRN	Increased-115,000 PRN
RIVIAN AUTOMOTIVE INC	NOTE 4.625% 3/1	$23.4M	0.8%Prev: 0.7%	18,581,000 PRN	Increased-184,000 PRN
SEAGATE HDD CAYMAN	NOTE 3.500% 6/0	$44.7M	1.6%Prev: 2.5%	13,293,000 PRN	Decreased-12,275,000 PRN
SHIFT4 PMTS INC	NOTE 0.500% 8/0	$38.1M	1.3%Prev: 1.3%	39,492,000 PRN	Decreased-405,000 PRN
SNOWFLAKE INC	NOTE 10/0	$44.4M	1.6%Prev: 1.4%	29,853,000 PRN	Increased+3,471,000 PRN
SOUTHERN CO	NOTE 4.500% 6/1	$6.0M	0.2%Prev: 0.2%	5,598,000 PRN	Decreased-138,000 PRN
SPDR GOLD TR	GOLD SHS	$6.1M	0.2%Prev: 0.2%	15,336 SH	Increased
SPDR SERIES TRUST	STATE STREET SPD	$1.2M	0.0%	13,633 SH	New
SPECTRUM BRANDS INC	NOTE 3.375% 6/0	$7.5M	0.3%Prev: 0.3%	7,857,000 PRN	Decreased-271,000 PRN
SYNAPTICS INC	NOTE 0.750%12/0	$17.1M	0.6%	16,169,000 PRN	New
TALOS ENERGY INC	COM	$33.2M	1.2%Prev: 1.0%	3,008,435 SH	Increased-90,000 SH
TELADOC HEALTH INC	NOTE 1.250% 6/0	$14.5M	0.5%Prev: 0.5%	15,194,000 PRN	Increased-119,000 PRN
TETRA TECH INC NEW	DBCV 2.250% 8/1	$64.8M	2.3%Prev: 2.2%	59,623,000 PRN	Increased+1,025,000 PRN
TURNING PT BRANDS INC	COM	$737K	0.0%Prev: 0.0%	6,802 SH	Increased
TYLER TEX INDPT SCH DIST	NOTE 0.250% 3/1	$30.7M	1.1%Prev: 1.1%	30,319,000 PRN	Decreased-302,000 PRN
UBER TECHNOLOGIES INC	NOTE 0.875%12/0	$55.4M	1.9%Prev: 2.2%	42,644,000 PRN	Decreased-347,000 PRN
UPSTART HLDGS INC	NOTE 1.000%11/1	$22.1M	0.8%	25,168,000 PRN	New
VAIL RESORTS INC	NOTE 1/0	$5.4M	0.2%Prev: 0.2%	5,408,000 PRN	Decreased-351,000 PRN
VERTEX INC	NOTE 0.750% 5/0	$17.2M	0.6%Prev: 0.6%	18,123,000 PRN	Decreased-200,000 PRN
WARNER BROS DISCOVERY INC	COM SER A	$6.5M	0.2%Prev: 0.3%	226,250 SH	Decreased-173,750 SH
WEC ENERGY GROUP INC	NOTE 4.375% 6/0	$6.2M	0.2%Prev: 0.2%	5,334,000 PRN	Decreased-174,000 PRN
WELLS FARGO CO NEW	PERP PFD CNV A	$18.0M	0.6%Prev: 0.6%	14,770 SH	Decreased-634 SH
WESTERN DIGITAL CORP	NOTE 3.000%11/1	$86.6M	3.0%Prev: 2.1%	18,882,000 PRN	Increased-346,000 PRN
WORKIVA INC	NOTE 1.250% 8/1	$16.7M	0.6%Prev: 0.6%	16,850,000 PRN	Decreased-220,000 PRN
WW INTL INC	COM NEW	$420K	0.0%Prev: 0.0%	14,371 SH	Increased

Sold (vs prior filing)

BILL HOLDINGS INC — $74K
EATON VANCE NEW YORK MUN BD — $4.2M
EXACT SCIENCES CORP — $3.7M
INVESCO QUALITY MUN INCOME T — $936K
LUMENTUM HLDGS INC — $21.9M
NEUBERGER BERMAN MUN FD INC — $12.7M
NINE ENERGY SERVICE INC — $74K
NUVEEN AMT FREE MUN CR INC F — $14.3M
NUVEEN AMT FREE QLTY MUN INC — $20.5M
NUVEEN CA QUALTY MUN INCOME — $5.9M
NUVEEN QUALITY MUNCP INCOME — $12.4M
PEBBLEBROOK HOTEL TR — $4.9M
SHIFT4 PMTS INC — $4.9M
SOUTHERN CO — $738K
VODAFONE GROUP PLC NEW — $4.3M

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