MACKAY SHIELDS LLC Q4 2025 Filing

Filed January 29, 2026

Portfolio Value

$2.9B

Holdings

132

Report Date

Q4 2025

Filing Type

13F-HR

All Holdings (132 positions)

#StockSharesValue% PortfolioType
1
WDC 3 11/15/28WESTERN DIGITAL CORP
18,882,000$86.6M3.03%
2
LITE 0.5 06/15/28LUMENTUM HLDGS INC
30,037,000$85.3M2.99%
3
AEIS 2.5 09/15/28ADVANCED ENERGY INDS
44,638,000$73.3M2.56%
4
MIRM 4 05/01/29MIRUM PHARMACEUTICALS INC
25,532,000$66.0M2.31%
5
LNTH 2.625 12/15/27LANTHEUS HLDGS INC
56,714,000$65.1M2.28%
61,171,159$65.0M2.28%
7
TTEK 2.25 08/15/28TETRA TECH INC NEW
59,623,000$64.8M2.27%
8
BA 6 10/15/27BOEING CO
830,097$57.7M2.02%
9
CABO 1.125 03/15/28CABLE ONE INC
69,399,000$56.6M1.98%
10
UBER 0.875 12/01/28 2028UBER TECHNOLOGIES INC
42,644,000$55.4M1.94%
11
APO 6.75 07/31/26APOLLO GLOBAL MGMT INC
714,292$53.9M1.89%
12
POST 2.5 08/15/27POST HLDGS INC
49,514,000$53.4M1.87%
1351,451,000$53.0M1.85%
14
ON 0 05/01/27ON SEMICONDUCTOR CORP
39,380,000$47.0M1.64%
1536,548,000$46.7M1.63%
16
IRTC 1.5 09/01/29IRHYTHM TECHNOLOGIES INC
32,682,000$45.7M1.60%
17
STX 3.5 06/01/28SEAGATE HDD CAYMAN
13,293,000$44.7M1.56%
18
SNOW 0 10/01/27SNOWFLAKE INC
29,853,000$44.4M1.55%
19
FWONK 2.25 08/15/27LIBERTY MEDIA CORP DEL
34,036,000$43.1M1.51%
20
HPE 7.625 09/01/27HEWLETT PACKARD ENTERPRISE C
597,863$39.6M1.39%
2138,891,000$38.9M1.36%
22
IAU*ISHARES GOLD TR
475,000$38.6M1.35%
23
FOUR 0.5 08/01/27SHIFT4 PMTS INC
39,492,000$38.0M1.33%
2437,045,000$37.5M1.31%
25
CHEF 2.375 12/15/28CHEFS WHSE INC
23,784,000$36.2M1.27%
26
PATK 1.75 12/01/28PATRICK INDS INC
21,148,000$36.0M1.26%
27
MTH 1.75 05/15/28MERITAGE HOMES CORP
36,370,000$35.9M1.26%
28
MCHP 7.5 03/15/28MICROCHIP TECHNOLOGY INC.
601,474$35.1M1.23%
29
AKAM 0.375 09/01/27AKAMAI TECHNOLOGIES INC
33,859,000$34.0M1.19%
3036,913,000$34.0M1.19%
31
DDOG 0 12/01/29DATADOG INC
33,802,000$33.8M1.18%
32
BMRN 1.25 05/15/27BIOMARIN PHARMACEUTICAL INC
34,655,000$33.3M1.16%
33
TALOTALOS ENERGY INC
3,008,435$33.2M1.16%
34
BBIO 2.25 02/01/29BRIDGEBIO PHARMA INC
28,678,000$32.3M1.13%
35
F 0 03/15/26FORD MTR CO
30,093,000$31.3M1.10%
36
LYV 2.875 01/15/30LIVE NATION ENTERTAINMENT IN
29,685,000$31.3M1.09%
37
BTTBLACKROCK MUN TARGET TERM TR
1,364,127$31.1M1.09%
38
TYL 0.25 03/15/26TYLER TEX INDPT SCH DIST
30,319,000$30.7M1.08%
39
BURL 1.25 12/15/27BURLINGTON STORES INC
20,379,000$30.3M1.06%
4026,298,000$30.0M1.05%
41
SIRI 3.75 03/15/28LIBERTY MEDIA CORP DEL
29,575,000$29.8M1.04%
42
PRGS 3.5 03/01/30PROGRESS SOFTWARE CORP
28,642,000$29.0M1.02%
43
NOG 3.625 04/15/29NORTHERN OIL & GAS INC
30,023,000$29.0M1.02%
4429,610,000$28.6M1.00%
45
GWRE 1.25 11/01/29GUIDEWIRE SOFTWARE INC
25,147,000$27.7M0.97%
46
PSN 2.625 03/01/29PARSONS CORP DEL
26,133,000$26.9M0.94%
47
AFRM 0.75 12/15/29AFFIRM HLDGS INC
24,259,000$26.9M0.94%
48
BAC 7.25 PERP LBANK AMERICA CORP
20,927$26.2M0.92%
49
QTWO 0.75 06/01/26Q2 HLDGS INC
25,530,000$25.9M0.91%
50
MHDBLACKROCK MUNIHOLDINGS FD IN
2,166,270$25.4M0.89%
51
FRPT 3 04/01/28FRESHPET INC
21,347,000$25.0M0.87%
52
CABO 0 03/15/26CABLE ONE INC
24,975,000$24.7M0.86%
53
DBX 0 03/01/28DROPBOX INC
24,323,000$24.6M0.86%
54
NEE 7.299 06/01/27NEXTERA ENERGY INC
463,345$23.9M0.84%
55
ARES 6.75 10/01/27 BARES MANAGEMENT CORPORATION
473,045$23.9M0.84%
56
RIVN 4.625 03/15/29RIVIAN AUTOMOTIVE INC
18,581,000$23.4M0.82%
57
GPORGULFPORT ENERGY CORP
108,592$22.6M0.79%
58
UPST 1 11/15/30UPSTART HLDGS INC
25,168,000$22.1M0.77%
59
ALNY 1 09/15/27ALNYLAM PHARMACEUTICALS INC
14,838,000$21.8M0.76%
60
GBX 2.875 04/15/28GREENBRIER COS INC
19,032,000$20.5M0.72%
61
WFC 7.5 PERP LWELLS FARGO CO NEW
14,770$18.0M0.63%
62
LITE 0.5 12/15/26LUMENTUM HLDGS INC
4,796,000$17.8M0.62%
6318,123,000$17.2M0.60%
64
SYNA 0.75 12/01/31SYNAPTICS INC
16,169,000$17.1M0.60%
65
WK 1.25 08/15/28WORKIVA INC
16,850,000$16.7M0.58%
66
IONS 1.75 06/15/28IONIS PHARMACEUTICALS INC
10,410,000$16.6M0.58%
679,890,000$16.1M0.56%
68
GPN 1.5 03/01/31GLOBAL PMTS INC
17,619,000$15.8M0.55%
69
CAKE 0.375 06/15/26CHEESECAKE FACTORY INC
15,451,000$15.3M0.53%
70
JAZZ 2 06/15/26JAZZ INVESTMENTS I LTD
13,087,000$15.2M0.53%
71
MUJBLACKROCK MUNIHLDGS NJ QLTY
1,232,873$14.7M0.51%
72
TDOC 1.25 06/01/27TELADOC HEALTH INC
15,194,000$14.5M0.51%
73
BILL 0 04/01/30BILL HOLDINGS INC
15,102,000$13.9M0.49%
74
MGPI 1.875 11/15/41MGP INGREDIENTS INC NEW
14,222,000$13.8M0.48%
75
NBHNEUBERGER MUN FD INC
1,233,578$12.5M0.44%
76
MHNBLACKROCK MUNIHLDGS NY QLTY
1,191,469$12.2M0.43%
7712,790,000$11.7M0.41%
78
MYNBLACKROCK MUNIYIELD N Y QUAL
1,174,171$11.6M0.41%
7912,805,000$11.6M0.40%
80
AVAV 0 07/15/30AEROVIRONMENT INC
10,210,000$11.1M0.39%
81
MUCBLACKROCK MUNIHLDNGS CALI QL
981,326$10.4M0.36%
82
MQTBLACKROCK MUNIYIELD QUALITY
1,008,573$10.1M0.35%
83
HAE 0 03/01/26HAEMONETICS CORP MASS
8,498,000$8.4M0.29%
84
BFKBLACKROCK MUN INCOME TR
833,784$8.4M0.29%
85
MVFBLACKROCK MUNIVEST FD INC
1,192,311$8.3M0.29%
86
AMPH 2 03/15/29AMPHASTAR PHARMACEUTICALS IN
8,733,000$8.1M0.28%
87
MIYBLACKROCK MUNIYIELD MICH QU
664,819$7.8M0.27%
88
SPB 3.375 06/01/29SPECTRUM BRANDS INC
7,857,000$7.4M0.26%
89
MYDBLACKROCK MUNIYIELD FD INC
697,362$7.3M0.26%
90
LYV 3.125 01/15/29LIVE NATION ENTERTAINMENT IN
4,789,000$7.0M0.24%
91
EXPE 0 02/15/26EXPEDIA GROUP INC
6,133,000$6.9M0.24%
92
NET 0 08/15/26CLOUDFLARE INC
5,715,000$6.7M0.23%
93
OSIS 2.25 08/01/29OSI SYSTEMS INC
4,522,000$6.7M0.23%
946,973,000$6.7M0.23%
95
WBDWARNER BROS DISCOVERY INC
226,250$6.5M0.23%
96
NRKNUVEEN NEW YORK AMT QLT MUNI
641,105$6.5M0.23%
97
WEC 4.375 06/01/29WEC ENERGY GROUP INC
5,334,000$6.2M0.22%
98
GQ9SPDR GOLD TR
15,336$6.1M0.21%
99
SO 4.5 06/15/27SOUTHERN CO
5,598,000$6.0M0.21%
100
HALO 0.25 03/01/27HALOZYME THERAPEUTICS INC
5,239,000$5.6M0.20%
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