MACKAY SHIELDS LLC Q2 2025 Filing

Filed July 24, 2025

Portfolio Value

$3.1T

Holdings

145

Report Date

Q2 2025

Filing Type

13F-HR

All Holdings (145 positions)

#StockSharesValue% PortfolioType
1
TTEK 2.25 08/15/28TETRA TECH INC NEW
64,507,000$72.8B2.33%
2
LNTH 2.625 12/15/27LANTHEUS HLDGS INC
55,828,000$71.0B2.28%
3
POST 2.5 08/15/27POST HLDGS INC
58,538,000$67.0B2.14%
4
UBER 0.875 12/01/28 2028UBER TECHNOLOGIES INC
43,173,000$61.8B1.98%
560,652,000$60.3B1.93%
6
BA 6 10/15/27BOEING CO
845,723$57.7B1.85%
740,832,000$57.6B1.85%
858,184,000$57.6B1.84%
9918,702$56.6B1.81%
10
APO 6.75 07/31/26APOLLO GLOBAL MGMT INC
725,064$54.6B1.75%
11
AEIS 2.5 09/15/28ADVANCED ENERGY INDS
45,386,000$54.6B1.75%
12
STX 3.5 06/01/28SEAGATE HDD CAYMAN
30,140,000$54.3B1.74%
13
CHEF 2.375 12/15/28CHEFS WHSE INC
34,578,000$54.0B1.73%
14
ON 0 05/01/27ON SEMICONDUCTOR CORP
45,179,000$53.6B1.72%
15
HALO 1 08/15/28HALOZYME THERAPEUTICS INC
43,628,000$49.8B1.59%
16
MIRM 4 05/01/29MIRUM PHARMACEUTICALS INC
27,886,000$49.5B1.59%
17
CABO 1.125 03/15/28CABLE ONE INC
63,030,000$48.2B1.54%
18
NEE 6.926 09/01/25NEXTERA ENERGY INC
1,204,627$48.0B1.54%
19
FWONK 2.25 08/15/27LIBERTY MEDIA CORP DEL
34,606,000$46.1B1.48%
20
XNEAXNUVEEN AMT FREE QLTY MUN INC
4,002,639$43.7B1.40%
21
PATK 1.75 12/01/28PATRICK INDS INC
29,354,000$43.6B1.40%
22
FOUR 0.5 08/01/27SHIFT4 PMTS INC
40,000,000$43.0B1.38%
23
AKAM 0.375 09/01/27AKAMAI TECHNOLOGIES INC
43,963,000$42.7B1.37%
24
BMRN 1.25 05/15/27BIOMARIN PHARMACEUTICAL INC
44,297,000$41.8B1.34%
25
MCHP 7.5 03/15/28MICROCHIP TECHNOLOGY INC.
612,603$40.9B1.31%
26
IRTC 1.5 09/01/29IRHYTHM TECHNOLOGIES INC
30,856,000$39.7B1.27%
2739,299,000$38.7B1.24%
28
TYL 0.25 03/15/26TYLER TEX INDPT SCH DIST
31,006,000$38.3B1.23%
2937,307,000$36.9B1.18%
3037,601,000$36.4B1.17%
31
MTH 1.75 05/15/28MERITAGE HOMES CORP
37,250,000$36.2B1.16%
32
HPE 7.625 09/01/27HEWLETT PACKARD ENTERPRISE C
608,240$35.9B1.15%
33
PR 3.25 04/01/28PERMIAN RES OPER LLC
14,774,000$35.8B1.15%
34
NZFNUVEEN MUNICIPAL CREDIT INC
2,972,732$35.4B1.13%
3526,904,000$35.3B1.13%
3637,468,000$35.3B1.13%
37
WDC 3 11/15/28WESTERN DIGITAL CORP
19,408,000$34.9B1.12%
38
IAU*ISHARES GOLD TR
555,000$34.6B1.11%
39
BTTBLACKROCK MUN TARGET TERM TR
1,563,907$34.2B1.10%
40
PRGS 3.5 03/01/30PROGRESS SOFTWARE CORP
29,034,000$33.7B1.08%
41
NOG 3.625 04/15/29NORTHERN OIL & GAS INC
32,180,000$33.7B1.08%
42
LITE 0.5 06/15/28LUMENTUM HLDGS INC
30,445,000$31.6B1.01%
43
SIRI 3.75 03/15/28LIBERTY MEDIA CORP DEL
29,835,000$31.1B1.00%
44
QTWO 0.75 06/01/26Q2 HLDGS INC
25,829,000$30.8B0.99%
45
F 0 03/15/26FORD MTR CO
30,950,000$30.6B0.98%
46
IONS 1.75 06/15/28IONIS PHARMACEUTICALS INC
27,793,000$29.3B0.94%
47
NVGNUVEEN AMT FREE MUN CR INC F
2,411,254$28.8B0.92%
48
PSN 2.625 03/01/29PARSONS CORP DEL
26,439,000$28.2B0.90%
49
BBIO 2.25 02/01/29BRIDGEBIO PHARMA INC
28,922,000$27.1B0.87%
50
JAZZ 2 06/15/26JAZZ INVESTMENTS I LTD
26,453,000$26.8B0.86%
51
BURL 1.25 12/15/27BURLINGTON STORES INC
20,561,000$26.6B0.85%
52
TALOTALOS ENERGY INC
3,132,176$26.6B0.85%
53
ARES 6.75 10/01/27 BARES MANAGEMENT CORPORATION
479,590$26.1B0.84%
54
NADNUVEEN QUALITY MUNCP INCOME
2,227,951$25.2B0.81%
55
DBX 0 03/01/28DROPBOX INC
24,613,000$25.1B0.80%
56
GPN 1.5 03/01/31GLOBAL PMTS INC
27,430,000$24.6B0.79%
5725,848,000$24.5B0.79%
58
GTLS 6.75 12/15/25 BCHART INDS INC
400,972$24.4B0.78%
59
NACNUVEEN CA QUALTY MUN INCOME
2,150,869$24.0B0.77%
60
CABO 0 03/15/26CABLE ONE INC
25,275,000$24.0B0.77%
61
MHDBLACKROCK MUNIHOLDINGS FD IN
2,126,547$23.8B0.76%
62
BAC 7.25 PERP LBANK AMERICA CORP
18,140$22.1B0.71%
6318,323,000$22.0B0.70%
64
KOS 3.125 03/15/30KOSMOS ENERGY LTD
32,707,000$22.0B0.70%
65
OIS 4.75 04/01/26OIL STS INTL INC
21,321,000$21.3B0.68%
66
CAKE 0.375 06/15/26CHEESECAKE FACTORY INC
20,582,000$21.1B0.68%
67
HAE 0 03/01/26HAEMONETICS CORP MASS
21,488,000$20.8B0.67%
68
GBX 2.875 04/15/28GREENBRIER COS INC
19,205,000$20.5B0.66%
69
ALNY 1 09/15/27ALNYLAM PHARMACEUTICALS INC
15,268,000$19.9B0.64%
70
RIVN 4.625 03/15/29RIVIAN AUTOMOTIVE INC
18,845,000$19.2B0.62%
71
WFC 7.5 PERP LWELLS FARGO CO NEW
15,779$18.6B0.59%
72
MGPI 1.875 11/15/41MGP INGREDIENTS INC NEW
19,555,000$18.5B0.59%
73
AMPH 2 03/15/29AMPHASTAR PHARMACEUTICALS IN
20,125,000$17.4B0.56%
74
WK 1.25 08/15/28WORKIVA INC
17,070,000$15.9B0.51%
75
FETFORUM ENERGY TECHNOLOGIES IN
809,235$15.8B0.50%
76
SPB 3.375 06/01/29SPECTRUM BRANDS INC
16,540,000$15.1B0.48%
77
TDOC 1.25 06/01/27TELADOC HEALTH INC
15,539,000$14.4B0.46%
78
LITE 1.5 12/15/29LUMENTUM HLDGS INC
9,060,000$13.9B0.45%
79
NVST 1.75 08/15/28ENVISTA HOLDINGS CORPORATION
14,908,000$13.9B0.44%
8013,787,000$13.7B0.44%
81
MUJBLACKROCK MUNIHLDGS NJ QLTY
1,251,050$13.7B0.44%
82
INN 1.5 02/15/26SUMMIT HOTEL PPTYS
13,391,000$13.0B0.42%
839,965,000$12.4B0.40%
84
MHNBLACKROCK MUNIHLDGS NY QLTY
1,193,269$11.7B0.38%
85
NBHNEUBERGER BERMAN MUN FD INC
1,180,981$11.6B0.37%
8612,965,000$11.5B0.37%
8712,970,000$11.4B0.36%
88
MYNBLACKROCK MUNIYIELD N Y QUAL
1,174,171$11.2B0.36%
89
MUCBLACKROCK MUNIHLDNGS CALI QL
981,667$10.2B0.33%
90
MQTBLACKROCK MUNIYIELD QUALITY
1,026,805$9.9B0.32%
91
TMDX 1.5 06/01/28TRANSMEDICS GROUP INC
6,117,000$9.8B0.31%
92
MVFBLACKROCK MUNIVEST FD INC
1,320,857$8.7B0.28%
93
BSY 0.125 01/15/26BENTLEY SYS INC
8,106,000$8.1B0.26%
94
BFKBLACKROCK MUN INCOME TR
833,784$8.0B0.26%
95
NRKNUVEEN NEW YORK AMT QLT MUNI
797,635$7.9B0.25%
96
LYV 3.125 01/15/29LIVE NATION ENTERTAINMENT IN
5,060,000$7.8B0.25%
97
MYDBLACKROCK MUNIYIELD FD INC
744,760$7.5B0.24%
98
MIYBLACKROCK MUNIYIELD MICH QU
664,819$7.3B0.24%
99
NET 0 08/15/26CLOUDFLARE INC
6,027,000$7.1B0.23%
100
MHIPIONEER MUNICIPAL HIGH INCOM
777,329$7.1B0.23%
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