MACKAY SHIELDS LLC

All Holdings — 2025 Q4

Portfolio Concentration Analytics: 7.6
Risk-based ENB:
Total Positions
146
Quarter
2025 Q4
Top Holding
N/A (3.0%)
Top 10 Concentration
23.7%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
1-25 of 146
Stock History Sector / Type Port % Prev % Rank / Prev Conviction Change % Change Influence Shares Mkt Value Avg Cost Price Held 1st Owned Source Source Date Date Reported
N/A
WESTERN DIGITAL...
Bond/Debt 3.03% 2.10% #1 6
Prev: #7
1.2 -346,000 -1.8%
P
S
18,882,000 $86,588,830 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
LUMENTUM HLDGS ...
Bond/Debt 2.99% 1.44% #2 18
Prev: #20
1.2 -408,000 -1.3%
P
S
30,037,000 $85,335,117 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
ADVANCED ENERGY...
Bond/Debt 2.56% 2.13% #3 3
Prev: #6
1.0 -536,000 -1.2%
P
S
44,638,000 $73,283,271 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
MIRUM PHARMACEU...
Bond/Debt 2.31% 2.15% #4 1
Prev: #5
0.9 -687,000 -2.6%
P
S
25,532,000 $65,982,855 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
LANTHEUS HLDGS ...
Bond/Debt 2.28% 2.00% #5 4
Prev: #9
2.9 1,041,000 1.9%
P
S
56,714,000 $65,100,817 13F Filing 2025-12-31 2026-02-14 (Est.)
QXOBV
QXO INC
Preferred 2.28% 2.23% #6 4
Prev: #2
0.9 -14,926 -1.3%
P
S
1,171,159 $65,023,437 2025 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
TETRA TECH INC ...
Unknown 2.27% 2.16% #7 4
Prev: #3
2.9 1,025,000 1.7%
P
S
59,623,000 $64,815,563 13F Filing 2025-12-31 2026-02-14 (Est.)
BA/PRA
BOEING CO
Preferred 2.02% 1.99% #8 2
Prev: #10
0.8 -11,884 -1.4%
P
S
830,097 $57,663,020 2024 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
CABLE ONE INC
Bond/Debt 1.98% 1.96% #9 3
Prev: #12
2.8 1,975,000 2.9%
P
S
69,399,000 $56,650,404 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
UBER TECHNOLOGI...
Bond/Debt 1.94% 2.15% #10 6
Prev: #4
0.8 -347,000 -0.8%
P
S
42,644,000 $55,403,859 13F Filing 2025-12-31 2026-02-14 (Est.)
APO/PRA
APOLLO GLOBAL M...
Unknown 1.89% 1.73% #11 4
Prev: #15
0.8 -7,555 -1.0%
P
S
714,292 $53,912,072 2023 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
POST HLDGS INC
Bond/Debt 1.87% 1.92% #12 1
Prev: #13
0.8 -607,000 -1.2%
P
S
49,514,000 $53,388,694 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
PG&E CORP
Bond/Debt 1.85% 2.08% #13 5
Prev: #8
0.8 -8,988,000 -14.9%
P
S
51,451,000 $52,987,573 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
ON SEMICONDUCTO...
Bond/Debt 1.64% 1.55% #14 4
Prev: #18
0.7 -599,000 -1.5%
P
S
39,380,000 $46,968,055 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
MKS INC.
Bond/Debt 1.63% 1.39% #15 8
Prev: #23
0.7 -637,000 -1.7%
P
S
36,548,000 $46,700,895 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
IRHYTHM TECHNOL...
Bond/Debt 1.60% 1.45% #16 3
Prev: #19
2.7 1,826,000 5.9%
P
S
32,682,000 $45,743,985 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
SEAGATE HDD CAY...
Bond/Debt 1.56% 2.51% #17 16
Prev: #1
0.8 -12,275,000 -48.0%
P
S
13,293,000 $44,711,006 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
SNOWFLAKE INC
Bond/Debt 1.55% 1.36% #18 7
Prev: #25
2.7 3,471,000 13.2%
P
S
29,853,000 $44,385,757 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
LIBERTY MEDIA C...
Bond/Debt 1.51% 1.56% #19 2
Prev: #17
0.6 -397,000 -1.2%
P
S
34,036,000 $43,128,530 13F Filing 2025-12-31 2026-02-14 (Est.)
HPE/PRC
HEWLETT PACKARD...
Unknown 1.39% 1.40% #20 2
Prev: #22
0.6 -7,315 -1.2%
P
S
597,863 $39,619,525 2024 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
NCL CORP LTD
Bond/Debt 1.36% 1.37% #21 3
Prev: #24
0.5 -420,000 -1.1%
P
S
38,891,000 $38,891,000 13F Filing 2025-12-31 2026-02-14 (Est.)
IAU
ISHARES GOLD TR
ETF 1.35% 1.30% #22 7
Prev: #29
0.6 -50,000 -9.5%
P
S
475,000 $38,555,750 2017 Q1 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
SHIFT4 PMTS INC
Bond/Debt 1.33% 1.34% #23 3
Prev: #26
0.5 -405,000 -1.0%
P
S
39,492,000 $38,050,542 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
ETSY INC
Bond/Debt 1.31% 1.33% #24 3
Prev: #27
0.5 -448,000 -1.2%
P
S
37,045,000 $37,491,747 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
CHEFS WHSE INC
Bond/Debt 1.27% 1.19% #25 8
Prev: #33
0.5 -316,000 -1.3%
P
S
23,784,000 $36,156,171 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
LUMENTUM HLDGS ...
Bond/Debt 0.00% 0.74%
Sold All 😨
(Was: #58)
0.3 -9,060,000 -100.0%
CLOSED
$— 13F Filing 2025-12-31 2026-02-14 (Est.)
NEA
NUVEEN AMT FREE...
Financial Services 0.00% 0.70%
Sold All 😨
(Was: #61)
0.3 -1,801,320 -100.0%
CLOSED
$— 2016 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
NVG
NUVEEN AMT FREE...
Financial Services 0.00% 0.49%
Sold All 😨
(Was: #71)
0.3 -1,165,469 -100.0%
CLOSED
$— 2016 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
NAD
NUVEEN QUALITY ...
Financial Services 0.00% 0.42%
Sold All 😨
(Was: #77)
0.3 -1,058,093 -100.0%
CLOSED
$— 2021 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
NAC
NUVEEN CA QUALT...
Financial Services 0.00% 0.20%
Sold All 😨
(Was: #99)
0.3 -511,343 -100.0%
CLOSED
$— 2010 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
SHIFT4 PMTS INC
Bond/Debt 0.00% 0.17%
Sold All 😨
(Was: #105)
0.3 -4,779,000 -100.0%
CLOSED
$— 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
PEBBLEBROOK HOT...
Bond/Debt 0.00% 0.17%
Sold All 😨
(Was: #106)
0.3 -4,923,000 -100.0%
CLOSED
$— 13F Filing 2025-12-31 2026-02-14 (Est.)
VOD
VODAFONE GROUP ...
Communication Services 0.00% 0.15%
Sold All 😨
(Was: #108)
0.3 -371,152 -100.0%
CLOSED
$— 2004 Q1 13F Filing 2025-12-31 2026-02-14 (Est.)
ENX
EATON VANCE NEW...
Unknown 0.00% 0.14%
Sold All 😨
(Was: #110)
0.3 -421,971 -100.0%
CLOSED
$— 2014 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
EXACT SCIENCES ...
Bond/Debt 0.00% 0.13%
Sold All 😨
(Was: #114)
0.3 -4,034,000 -100.0%
CLOSED
$— 13F Filing 2025-12-31 2026-02-14 (Est.)
IQI
INVESCO QUALITY...
Financial Services 0.00% 0.03%
Sold All 😨
(Was: #126)
0.3 -94,994 -100.0%
CLOSED
$— 2010 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
SOUTHERN CO
Bond/Debt 0.00% 0.03%
Sold All 😨
(Was: #127)
0.3 -655,000 -100.0%
CLOSED
$— 13F Filing 2025-12-31 2026-02-14 (Est.)
N/A
BILL HOLDINGS I...
Bond/Debt 0.00% 0.00%
Sold All 😨
(Was: #134)
0.3 -75,000 -100.0%
CLOSED
$— 13F Filing 2025-12-31 2026-02-14 (Est.)
NINE
NINE ENERGY SER...
Energy 0.00% 0.00%
Sold All 😨
(Was: #135)
0.3 -116,342 -100.0%
CLOSED
$— 2023 Q1 13F Filing 2025-12-31 2026-02-14 (Est.)
Showing 1-25 of 146 holdings

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