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: $2.94B7 positionsView on SEC.gov

			% of Portfolio
ABRDN NATL MUN INCOME FD	SH BEN INT	$4.1M	0.1%Prev: 0.1%	401,695 SH	Decreased
ADVANCED ENERGY INDS	NOTE 2.500% 9/1	$62.7M	2.1%Prev: 0.4%	45,174,000 PRN	Increased+40,331,000 PRN
AEROVIRONMENT INC	NOTE 7/1	$12.5M	0.4%	10,088,000 PRN	New
AKAMAI TECHNOLOGIES INC	NOTE 0.375% 9/0	$41.6M	1.4%Prev: 1.4%	43,444,000 PRN	Increased+9,420,000 PRN
ALNYLAM PHARMACEUTICALS INC	NOTE 1.000% 9/1	$25.0M	0.9%Prev: 0.6%	15,188,000 PRN	Increased+354,000 PRN
AMPHASTAR PHARMACEUTICALS IN	NOTE 2.000% 3/1	$10.6M	0.4%	11,610,000 PRN	New
APOLLO GLOBAL MGMT INC	SER A MAND CNV	$51.0M	1.7%Prev: 1.5%	721,847 SH	Increased+8,694 SH
ARES MANAGEMENT CORPORATION	6.75 SE B PFD	$24.0M	0.8%Prev: 0.6%	480,905 SH	Increased+1,170 SH
BANK AMERICA CORP	7.25%CNV PFD L	$22.5M	0.8%	17,584 SH	New
BENTLEY SYS INC	NOTE 0.125% 1/1	$4.6M	0.2%	4,661,000 PRN	New
BILL HOLDINGS INC	NOTE 12/0	$74K	0.0%	75,000 PRN	New
BIOMARIN PHARMACEUTICAL INC	NOTE 1.250% 5/1	$33.4M	1.1%Prev: 0.9%	35,206,000 PRN	Increased+8,772,000 PRN
BLACKLINE INC	NOTE 1.000% 6/0	$1.0M	0.0%Prev: 0.0%	1,000,000 PRN	Increased+705,000 PRN
BLACKROCK INVT QUALITY MUN T	COM	$1.0M	0.0%	92,077 SH	New
BLACKROCK MUN INCOME QUALITY	COM	$5.3M	0.2%	479,613 SH	New
BLACKROCK MUN INCOME TR	SH BEN INT	$8.4M	0.3%	833,784 SH	New
BLACKROCK MUN TARGET TERM TR	COM SHS BEN IN	$31.9M	1.1%Prev: 1.5%	1,419,894 SH	Decreased-548,086 SH
BLACKROCK MUNI INCOME TR II	COM	$3.8M	0.1%	363,951 SH	New
BLACKROCK MUNIHLDGS NJ QLTY	COM	$14.3M	0.5%Prev: 0.4%	1,232,873 SH	Increased+350,921 SH
BLACKROCK MUNIHLDGS NY QLTY	COM	$12.2M	0.4%	1,191,469 SH	New
BLACKROCK MUNIHLDNGS CALI QL	COM	$10.6M	0.4%	981,326 SH	New
BLACKROCK MUNIHOLDINGS FD IN	COM	$25.5M	0.9%Prev: 0.8%	2,166,270 SH	Increased+183,915 SH
BLACKROCK MUNIVEST FD II INC	COM	$698K	0.0%	65,678 SH	New
BLACKROCK MUNIVEST FD INC	COM	$8.4M	0.3%	1,223,865 SH	New
BLACKROCK MUNIYIELD FD INC	COM	$7.5M	0.3%	712,123 SH	New
BLACKROCK MUNIYIELD MICH QU	COM	$7.5M	0.3%Prev: 0.2%	664,819 SH	Increased+185,072 SH
BLACKROCK MUNIYIELD N Y QUAL	COM	$11.7M	0.4%Prev: 0.8%	1,174,171 SH	Decreased-1,175,516 SH
BLACKROCK MUNIYIELD QUALITY	COM	$10.3M	0.4%Prev: 0.2%	1,026,805 SH	Increased+587,801 SH
BLACKROCK MUNIYILD QULT FD I	COM	$4.2M	0.1%Prev: 0.6%	357,837 SH	Decreased-1,236,182 SH
BLACKROCK N Y MUN INCOME TRU	SH BEN INT	$2.2M	0.1%	218,559 SH	New
BOEING CO	DEP CONV PFD A	$58.6M	2.0%Prev: 1.9%	841,981 SH	Increased+13,307 SH
BRIDGEBIO PHARMA INC	NOTE 2.250% 2/0	$28.6M	1.0%Prev: 1.2%	28,922,000 PRN	Decreased-4,337,000 PRN
BURLINGTON STORES INC	NOTE 1.250%12/1	$27.8M	0.9%Prev: 0.9%	20,561,000 PRN	Decreased+3,032,000 PRN
CABLE ONE INC	NOTE 1.125% 3/1	$57.7M	2.0%Prev: 2.0%	67,424,000 PRN	Decreased-22,464,000 PRN
CABLE ONE INC	NOTE 3/1	$24.4M	0.8%	24,975,000 PRN	New
CHEESECAKE FACTORY INC	NOTE 0.375% 6/1	$15.7M	0.5%	15,810,000 PRN	New
CHEFS WHSE INC	NOTE 2.375%12/1	$34.9M	1.2%Prev: 1.8%	24,100,000 PRN	Decreased+390,000 PRN
CHEGG INC	NOTE 9/0	$35K	0.0%Prev: 0.0%	45,000 PRN	Decreased
CLOUDFLARE INC	NOTE 8/1	$7.2M	0.2%Prev: 0.2%	5,816,000 PRN	Increased+179,000 PRN
CONMED CORP	NOTE 2.250% 6/1	$14.7M	0.5%	15,399,000 PRN	New
DEXCOM INC	NOTE 0.375% 5/1	$34.0M	1.2%Prev: 0.7%	37,290,000 PRN	Increased+14,875,000 PRN
DROPBOX INC	NOTE 3/0	$31.1M	1.1%Prev: 0.8%	30,326,000 PRN	Increased+6,003,000 PRN
DUKE ENERGY CORP NEW	NOTE 4.125% 4/1	$543K	0.0%	505,000 PRN	New
DWS MUN INCOME TR NEW	COM	$1.2M	0.0%	130,807 SH	New
EATON VANCE MUN BD FD	COM	$3.2M	0.1%Prev: 0.0%	318,814 SH	Increased+193,050 SH
EATON VANCE NEW YORK MUN BD	COM	$4.2M	0.1%	421,971 SH	New
ETSY INC	NOTE 0.125%10/0	$39.0M	1.3%Prev: 1.7%	37,493,000 PRN	Decreased-12,393,000 PRN
EXACT SCIENCES CORP	NOTE 0.375% 3/0	$3.7M	0.1%	4,034,000 PRN	New
EXPEDIA GROUP INC	NOTE 2/1	$6.2M	0.2%	6,183,000 PRN	New
FIVE9 INC	NOTE 1.000% 3/1	$11.9M	0.4%Prev: 0.2%	13,345,000 PRN	Increased+7,190,000 PRN
FLUOR CORP	NOTE 1.125% 8/1	$31.8M	1.1%Prev: 1.2%	26,730,000 PRN	Decreased+563,000 PRN
FORD MTR CO	NOTE 3/1	$31.3M	1.1%	30,776,000 PRN	New
FRESHPET INC	NOTE 3.000% 4/0	$24.3M	0.8%Prev: 1.2%	21,572,000 PRN	Decreased-10,228,000 PRN
GLOBAL PMTS INC	NOTE 1.500% 3/0	$24.4M	0.8%Prev: 0.4%	26,553,000 PRN	Increased+13,674,000 PRN
GREENBRIER COS INC	NOTE 2.875% 4/1	$20.6M	0.7%Prev: 0.7%	19,205,000 PRN	Decreased+173,000 PRN
GULFPORT ENERGY CORP	COMMON SHARES	$23.7M	0.8%Prev: 0.6%	130,956 SH	Increased+33,444 SH
HAEMONETICS CORP MASS	NOTE 3/0	$8.8M	0.3%	8,949,000 PRN	New
HALOZYME THERAPEUTICS INC	NOTE 0.250% 3/0	$58.0M	2.0%Prev: 0.2%	50,503,000 PRN	Increased+45,096,000 PRN
HEWLETT PACKARD ENTERPRISE C	7.625 MAND CONV	$41.2M	1.4%Prev: 2.4%	605,178 SH	Decreased+3,915 SH
IMPINJ INC	NOTE 1.125% 5/1	$16.7M	0.6%	9,965,000 PRN	New
INTEGER HLDGS CORP	NOTE 2.125% 2/1	$5.2M	0.2%Prev: 0.2%	3,961,000 PRN	Increased+205,000 PRN
INVESCO ADVANTAGE MUN INCOME	SH BEN INT	$3.6M	0.1%	404,961 SH	New
INVESCO MUN OPPORTUNITY TR	COM	$3.0M	0.1%	307,705 SH	New
INVESCO MUNICIPAL TRUST	COM	$3.1M	0.1%	325,107 SH	New
INVESCO PA VALUE MUN INC TR	COM	$149K	0.0%	14,433 SH	New
INVESCO QUALITY MUN INCOME T	COM	$936K	0.0%	94,994 SH	New
INVESCO TR INVT GRADE MUNS	COM	$3.7M	0.1%	370,162 SH	New
IONIS PHARMACEUTICALS INC	NOTE 1.750% 6/1	$38.5M	1.3%Prev: 0.1%	27,793,000 PRN	Increased+25,379,000 PRN
IONIS PHARMACEUTICALS INC	NOTE 4/0	$3.5M	0.1%	2,816,000 PRN	New
IRHYTHM TECHNOLOGIES INC	NOTE 1.500% 9/0	$42.5M	1.4%	30,856,000 PRN	New
ISHARES GOLD TR	ISHARES NEW	$38.2M	1.3%Prev: 0.8%	525,000 SH	Increased+196,980 SH
JAZZ INVESTMENTS I LTD	NOTE 2.000% 6/1	$14.2M	0.5%	13,366,000 PRN	New
LANTHEUS HLDGS INC	NOTE 2.625%12/1	$58.7M	2.0%Prev: 2.5%	55,673,000 PRN	Decreased+4,810,000 PRN
LIBERTY MEDIA CORP DEL	NOTE 2.250% 8/1	$45.7M	1.6%Prev: 1.4%	34,433,000 PRN	Increased+539,000 PRN
LIBERTY MEDIA CORP DEL	NOTE 3.750% 3/1	$31.2M	1.1%Prev: 0.9%	29,835,000 PRN	Increased+5,377,000 PRN
LIVE NATION ENTERTAINMENT IN	NOTE 3.125% 1/1	$7.9M	0.3%Prev: 0.3%	4,885,000 PRN	Decreased+209,000 PRN
LUMENTUM HLDGS INC	NOTE 0.500% 6/1	$42.5M	1.4%Prev: 2.8%	30,445,000 PRN	Decreased+17,561,000 PRN
LUMENTUM HLDGS INC	NOTE 0.500%12/1	$8.3M	0.3%	4,909,000 PRN	New
LUMENTUM HLDGS INC	NOTE 1.500%12/1	$21.9M	0.7%	9,060,000 PRN	New
MERITAGE HOMES CORP	NOTE 1.750% 5/1	$38.0M	1.3%Prev: 1.0%	37,024,000 PRN	Increased+8,993,000 PRN
MFS MUN INCOME TR	SH BEN INT	$2.3M	0.1%	433,155 SH	New
MGP INGREDIENTS INC NEW	NOTE 1.875%11/1	$14.0M	0.5%Prev: 0.5%	14,660,000 PRN	Increased+417,000 PRN
MICROCHIP TECHNOLOGY INC.	DEP SHS REPSTG	$36.0M	1.2%Prev: 1.6%	609,163 SH	Decreased+5,672 SH
MIRUM PHARMACEUTICALS INC	NOTE 4.000% 5/0	$63.1M	2.1%Prev: 0.2%	26,219,000 PRN	Increased+24,272,000 PRN
MKS INC.	NOTE 1.250% 6/0	$40.8M	1.4%Prev: 3.6%	37,185,000 PRN	Decreased+715,000 PRN
NCL CORP LTD	NOTE 1.125% 2/1	$40.3M	1.4%	39,311,000 PRN	New
NEUBERGER BERMAN MUN FD INC	COM	$12.7M	0.4%	1,233,578 SH	New
NEXTERA ENERGY INC	UNIT 06/01/2027	$23.3M	0.8%Prev: 1.7%	465,471 SH	Decreased-475,479 SH
NINE ENERGY SERVICE INC	COM	$74K	0.0%	116,342 SH	New
NORTHERN OIL & GAS INC	NOTE 3.625% 4/1	$32.2M	1.1%Prev: 1.1%	32,032,000 PRN	Increased-1,209,000 PRN
NUTANIX INC	NOTE 0.250%10/0	$56.1M	1.9%Prev: 0.2%	40,670,000 PRN	Increased+36,088,000 PRN
NUVEEN AMT FREE MUN CR INC F	COM	$14.3M	0.5%	1,165,469 SH	New
NUVEEN AMT FREE QLTY MUN INC	COM	$20.5M	0.7%	1,801,320 SH	New
NUVEEN CA QUALTY MUN INCOME	COM	$5.9M	0.2%	511,343 SH	New
NUVEEN MUNICIPAL CREDIT INC	COM SH BEN INT	$17.7M	0.6%	1,406,423 SH	New
NUVEEN NEW YORK AMT QLT MUNI	COM	$8.1M	0.3%	797,635 SH	New
NUVEEN PENNSYLVANIA QLT MUN	COM	$2.8M	0.1%	233,310 SH	New
NUVEEN QUALITY MUNCP INCOME	COM	$12.4M	0.4%	1,058,093 SH	New
OIL STS INTL INC	NOTE 4.750% 4/0	$21.3M	0.7%	21,321,000 PRN	New
ON SEMICONDUCTOR CORP	NOTE 5/0	$45.6M	1.6%Prev: 1.3%	39,979,000 PRN	Increased+18,030,000 PRN
OSI SYSTEMS INC	NOTE 2.250% 8/0	$47.3M	1.6%Prev: 0.2%	32,536,000 PRN	Increased+28,051,000 PRN
PARSONS CORP DEL	NOTE 2.625% 3/0	$30.2M	1.0%Prev: 0.9%	26,441,000 PRN	Increased+274,000 PRN
PATRICK INDS INC	NOTE 1.750%12/0	$38.0M	1.3%Prev: 0.9%	23,353,000 PRN	Increased+4,235,000 PRN
PEBBLEBROOK HOTEL TR	NOTE 1.750%12/1	$4.9M	0.2%	4,923,000 PRN	New
PG&E CORP	NOTE 4.250%12/0	$61.3M	2.1%Prev: 1.6%	60,439,000 PRN	Increased+13,986,000 PRN
POST HLDGS INC	NOTE 2.500% 8/1	$56.3M	1.9%Prev: 1.4%	50,121,000 PRN	Increased+9,960,000 PRN
PPL CAP FDG INC	NOTE 2.875% 3/1	$575K	0.0%Prev: 0.0%	503,000 PRN	Increased+3,000 PRN
PROGRESS SOFTWARE CORP	NOTE 3.500% 3/0	$29.2M	1.0%Prev: 0.9%	28,964,000 PRN	Increased+374,000 PRN
Q2 HLDGS INC	NOTE 0.750% 6/0	$26.8M	0.9%	25,829,000 PRN	New
QXO INC	5.50 DEP PFD	$65.5M	2.2%Prev: 1.9%	1,186,085 SH	Increased+16,597 SH
RAPID7 INC	NOTE 1.250% 3/1	$11.5M	0.4%	12,905,000 PRN	New
RIVIAN AUTOMOTIVE INC	NOTE 4.625% 3/1	$19.5M	0.7%Prev: 0.7%	18,765,000 PRN	Decreased+185,000 PRN
SEAGATE HDD CAYMAN	NOTE 3.500% 6/0	$73.7M	2.5%	25,568,000 PRN	New
SHIFT4 PMTS INC	NOTE 0.500% 8/0	$39.4M	1.3%Prev: 0.6%	39,897,000 PRN	Increased+20,740,000 PRN
SHIFT4 PMTS INC	NOTE 12/1	$4.9M	0.2%	4,779,000 PRN	New
SNOWFLAKE INC	NOTE 10/0	$40.1M	1.4%Prev: 1.8%	26,382,000 PRN	Decreased-6,159,000 PRN
SOUTHERN CO	NOTE 3.875%12/1	$738K	0.0%	655,000 PRN	New
SOUTHERN CO	NOTE 4.500% 6/1	$6.4M	0.2%Prev: 0.2%	5,736,000 PRN	Increased+167,000 PRN
SPDR GOLD TR	GOLD SHS	$5.5M	0.2%Prev: 0.2%	15,336 SH	Decreased
SPECTRUM BRANDS INC	NOTE 3.375% 6/0	$7.6M	0.3%Prev: 0.3%	8,128,000 PRN	Decreased+271,000 PRN
TALOS ENERGY INC	COM	$29.7M	1.0%Prev: 0.5%	3,098,435 SH	Increased+1,934,527 SH
TELADOC HEALTH INC	NOTE 1.250% 6/0	$14.4M	0.5%Prev: 0.2%	15,313,000 PRN	Increased+7,808,000 PRN
TETRA TECH INC NEW	DBCV 2.250% 8/1	$63.5M	2.2%Prev: 1.9%	58,598,000 PRN	Increased+6,153,000 PRN
TURNING PT BRANDS INC	COM	$672K	0.0%	6,802 SH	New
TYLER TEX INDPT SCH DIST	NOTE 0.250% 3/1	$33.7M	1.1%	30,621,000 PRN	New
UBER TECHNOLOGIES INC	NOTE 0.875%12/0	$63.3M	2.2%Prev: 1.8%	42,991,000 PRN	Increased-2,373,000 PRN
VAIL RESORTS INC	NOTE 1/0	$5.7M	0.2%	5,759,000 PRN	New
VERTEX INC	NOTE 0.750% 5/0	$18.7M	0.6%Prev: 0.3%	18,323,000 PRN	Increased+9,171,000 PRN
VODAFONE GROUP PLC NEW	SPONSORED ADR	$4.3M	0.1%	371,152 SH	New
WARNER BROS DISCOVERY INC	COM SER A	$7.8M	0.3%Prev: 0.3%	400,000 SH	Decreased+41,940 SH
WEC ENERGY GROUP INC	NOTE 4.375% 6/0	$6.8M	0.2%Prev: 0.2%	5,508,000 PRN	Increased+346,000 PRN
WELLS FARGO CO NEW	PERP PFD CNV A	$19.1M	0.6%	15,404 SH	New
WESTERN DIGITAL CORP	NOTE 3.000%11/1	$61.7M	2.1%Prev: 5.1%	19,228,000 PRN	Decreased+10,276,000 PRN
WORKIVA INC	NOTE 1.250% 8/1	$16.9M	0.6%Prev: 0.5%	17,070,000 PRN	Increased+485,000 PRN
WW INTL INC	COM NEW	$393K	0.0%Prev: 0.0%	14,371 SH	Increased

Sold (vs prior filing)

ABERDEEN MUN INCOME FD — $1.9M
AFFIRM HLDGS INC — $31.7M
ALPHABET INC — $122.6M
ALPHABET INC — $12.6M
ARROWHEAD PHARMACEUTICALS IN — $24.5M
BANK OF AMER CORP — $26.1M
BILL HOLDINGS INC — $13.1M
BLACKROCK MUNIHLDNGS CALI — $1.4M
CLOUDFLARE INC — $31.5M
CYBERARK SOFTWARE LTD — $31.6M
DATADOG INC — $39.1M
DOORDASH INC — $24.4M
GUARDANT HEALTH INC — $8.9M
GUIDEWIRE SOFTWARE INC — $24.0M
INTEGER HLDGS CORP — $43.9M
IRHYTHM HOLDINGS INC — $35.9M
JAZZ INVESTMENTS I LTD — $34.7M
LIFE360 INC — $9.2M
LIVE NATION ENTERTAINMENT IN — $35.6M
MERIT MED SYS INC — $41.1M
… 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