MACKAY SHIELDS LLC

Filed: 2/4/2025ACC: 0001085146-25-000721

📋 What this filing means

MACKAY SHIELDS LLC filed this quarterly 13F‑HR report disclosing 147 equity positions with a total reported market value of $3.39B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.

147

Positions

$3.39B

Total AUM (reported)

2.31B

Total Shares

Allocation by class

COM$330.04M9.7%

NOTE 3/0$88.27M2.6%

NOTE 3/1$81.25M2.4%

DBCV 2.250% 8/1$75.43M2.2%

NOTE 2.625%12/1$74.75M2.2%

NOTE 9/1$73.75M2.2%

DBCV 2.750% 6/0$73.26M2.2%

Portfolio Concentration

Top 3$223.44M6.6%

4–10$457.16M13.5%

11–25$749.68M22.1%

Rest$1.96B57.8%

Top 3 weight

6.6%

Top 10 weight

20.1%

Voting Authority Distribution

Total shares with voting rights: 2.31B

Sole

Full voting authority

160.19M

% of voting shares6.9%

Shared

Joint voting authority

2.15B

% of voting shares93.0%

None

No voting authority

528.68K

% of voting shares0.0%

Investment Discretion (by position count)

Sole71

Shared0

Other76

Dominant voting typeShared · 93.0% of voting shares

Institutional Holdings147

Rows:

TETRA TECH INC NEW

DFND

DBCV 2.250% 8/1

Shares64.10M

TypePRN

Market value$75.43M

2.22%

Sole

2.78M

Shared

61.30M

None

13K

LANTHEUS HLDGS INC

SOLE

NOTE 2.625%12/1

Shares56.02M

TypePRN

Market value$74.75M

2.20%

Sole

2.53M

Shared

53.48M

None

11K

NRG ENERGY INC

OTR

DBCV 2.750% 6/0

Shares33.35M

TypePRN

Market value$73.26M

2.16%

Sole

1.57M

Shared

31.78M

None

POST HLDGS INC

SOLE

NOTE 2.500% 8/1

Shares59.01M

TypePRN

Market value$69.26M

2.04%

Sole

2.27M

Shared

56.72M

None

14K

INTEGER HLDGS CORP

OTR

NOTE 2.125% 2/1

Shares42.37M

TypePRN

Market value$67.90M

2.00%

Sole

1.94M

Shared

40.42M

None

11K

PG&E CORP

OTR

NOTE 4.250%12/0

Shares61.01M

TypePRN

Market value$66.44M

1.96%

Sole

2.75M

Shared

58.24M

None

15K

NICE LTD

OTR

NOTE 9/1

Shares68.58M

TypePRN

Market value$65.93M

1.94%

Sole

2.97M

Shared

65.58M

None

22K

SOUTHWEST AIRLS CO

SOLE

NOTE 1.250% 5/0

Shares62.80M

TypePRN

Market value$64.69M

1.91%

Sole

2.30M

Shared

60.50M

None

11K

APOLLO GLOBAL MGMT INC

DFND

SER A MAND CNV

Shares733.58K

TypeSH

Market value$63.95M

1.89%

Sole

38.09K

Shared

695.23K

None

256.00

BOOKING HOLDINGS INC

SOLE

NOTE 0.750% 5/0

Shares22.32M

TypePRN

Market value$58.99M

1.74%

Sole

1.32M

Shared

21M

None

0.00

BIOMARIN PHARMACEUTICAL INC

OTR

NOTE 1.250% 5/1

Shares61.74M

TypePRN

Market value$57.51M

1.70%

Sole

3.13M

Shared

58.59M

None

16K

PATRICK INDS INC

DFND

NOTE 1.750%12/0

Shares41.94M

TypePRN

Market value$57.18M

1.69%

Sole

1.80M

Shared

40.12M

None

18K

FORD MTR CO

OTR

NOTE 3/1

Shares58.51M

TypePRN

Market value$56.79M

1.67%

Sole

2.87M

Shared

55.63M

None

14K

ON SEMICONDUCTOR CORP

DFND

NOTE 0.500% 3/0

Shares56.30M

TypePRN

Market value$53.19M

1.57%

Sole

2.62M

Shared

53.66M

None

16K

PALO ALTO NETWORKS INC

OTR

NOTE 0.375% 6/0

Shares13.95M

TypePRN

Market value$51.10M

1.51%

Sole

483K

Shared

13.46M

None

CHEFS WHSE INC

SOLE

NOTE 2.375%12/1

Shares39.53M

TypePRN

Market value$50.91M

1.50%

Sole

1.77M

Shared

37.74M

None

14K

CONMED CORP

SOLE

NOTE 2.250% 6/1

Shares54.62M

TypePRN

Market value$50.81M

1.50%

Sole

2.40M

Shared

52.21M

None

14K

NEXTERA ENERGY INC

SOLE

UNIT 09/01/2025

Shares1.22M

TypeSH

Market value$50.17M

1.48%

Sole

75.55K

Shared

1.14M

None

571.00

NUTANIX INC

DFND

NOTE 0.250%10/0

Shares41.23M

TypePRN

Market value$49.99M

1.47%

Sole

1.97M

Shared

39.25M

None

13K

HALOZYME THERAPEUTICS INC

OTR

NOTE 1.000% 8/1

Shares44.13M

TypePRN

Market value$47.68M

1.41%

Sole

2.03M

Shared

42.08M

None

15K

NCL CORP LTD

OTR

NOTE 1.125% 2/1

Shares45.15M

TypePRN

Market value$46.93M

1.38%

Sole

1.69M

Shared

43.45M

None

0.00

NUVEEN AMT FREE QLTY MUN INC

OTR

COM

Shares4.04M

TypeSH

Market value$45.58M

1.34%

Sole

3.33M

Shared

715.26K

None

0.00

CABLE ONE INC

OTR

NOTE 1.125% 3/1

Shares53.68M

TypePRN

Market value$44.42M

1.31%

Sole

20.22M

Shared

33.46M

None

0.00

ADVANCED ENERGY INDS

OTR

NOTE 2.500% 9/1

Shares40.13M

TypePRN

Market value$43.90M

1.29%

Sole

1.94M

Shared

38.19M

None

0.00

MGP INGREDIENTS INC NEW

DFND

NOTE 1.875%11/1

Shares46.83M

TypePRN

Market value$43.53M

1.28%

Sole

2.12M

Shared

44.70M

None

Issuer	Class	Shares	Type	Value / Portfolio %	Voting — Sole	Shared	None
TETRA TECH INC NEWDFND	DBCV 2.250% 8/1	64.10M	PRN	$75.43M 2.22%	2.78M	61.30M	13K
LANTHEUS HLDGS INCSOLE	NOTE 2.625%12/1	56.02M	PRN	$74.75M 2.20%	2.53M	53.48M	11K
NRG ENERGY INCOTR	DBCV 2.750% 6/0	33.35M	PRN	$73.26M 2.16%	1.57M	31.78M	8K
POST HLDGS INCSOLE	NOTE 2.500% 8/1	59.01M	PRN	$69.26M 2.04%	2.27M	56.72M	14K
INTEGER HLDGS CORPOTR	NOTE 2.125% 2/1	42.37M	PRN	$67.90M 2.00%	1.94M	40.42M	11K
PG&E CORPOTR	NOTE 4.250%12/0	61.01M	PRN	$66.44M 1.96%	2.75M	58.24M	15K
NICE LTDOTR	NOTE 9/1	68.58M	PRN	$65.93M 1.94%	2.97M	65.58M	22K
SOUTHWEST AIRLS COSOLE	NOTE 1.250% 5/0	62.80M	PRN	$64.69M 1.91%	2.30M	60.50M	11K
APOLLO GLOBAL MGMT INCDFND	SER A MAND CNV	733.58K	SH	$63.95M 1.89%	38.09K	695.23K	256.00
BOOKING HOLDINGS INCSOLE	NOTE 0.750% 5/0	22.32M	PRN	$58.99M 1.74%	1.32M	21M	0.00
BIOMARIN PHARMACEUTICAL INCOTR	NOTE 1.250% 5/1	61.74M	PRN	$57.51M 1.70%	3.13M	58.59M	16K
PATRICK INDS INCDFND	NOTE 1.750%12/0	41.94M	PRN	$57.18M 1.69%	1.80M	40.12M	18K
FORD MTR COOTR	NOTE 3/1	58.51M	PRN	$56.79M 1.67%	2.87M	55.63M	14K
ON SEMICONDUCTOR CORPDFND	NOTE 0.500% 3/0	56.30M	PRN	$53.19M 1.57%	2.62M	53.66M	16K
PALO ALTO NETWORKS INCOTR	NOTE 0.375% 6/0	13.95M	PRN	$51.10M 1.51%	483K	13.46M	6K
CHEFS WHSE INCSOLE	NOTE 2.375%12/1	39.53M	PRN	$50.91M 1.50%	1.77M	37.74M	14K
CONMED CORPSOLE	NOTE 2.250% 6/1	54.62M	PRN	$50.81M 1.50%	2.40M	52.21M	14K
NEXTERA ENERGY INCSOLE	UNIT 09/01/2025	1.22M	SH	$50.17M 1.48%	75.55K	1.14M	571.00
NUTANIX INCDFND	NOTE 0.250%10/0	41.23M	PRN	$49.99M 1.47%	1.97M	39.25M	13K
HALOZYME THERAPEUTICS INCOTR	NOTE 1.000% 8/1	44.13M	PRN	$47.68M 1.41%	2.03M	42.08M	15K
NCL CORP LTDOTR	NOTE 1.125% 2/1	45.15M	PRN	$46.93M 1.38%	1.69M	43.45M	0.00
NUVEEN AMT FREE QLTY MUN INCOTR	COM	4.04M	SH	$45.58M 1.34%	3.33M	715.26K	0.00
CABLE ONE INCOTR	NOTE 1.125% 3/1	53.68M	PRN	$44.42M 1.31%	20.22M	33.46M	0.00
ADVANCED ENERGY INDSOTR	NOTE 2.500% 9/1	40.13M	PRN	$43.90M 1.29%	1.94M	38.19M	0.00
MGP INGREDIENTS INC NEWDFND	NOTE 1.875%11/1	46.83M	PRN	$43.53M 1.28%	2.12M	44.70M	7K

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