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MACKAY SHIELDS LLC

Q2 2026 13F filing

Updated 44 days ago

306 disclosed positions worth $3B

Portfolio value
$3B
Total holdings
306
New positions
13
Closed positions
16
Increased
16
Decreased
59
Turnover
9.5%
Filed
2026-07-28

Full holdings

Every line item disclosed in Q2 2026

W
1.WDC

WESTERN DIGITAL CORP

+221.6%
Value
$112.4M
Shares
6.67M
% Port
3.77%
G

ALPHABET INC

Value
$98.1M
Shares
1.94M
% Port
3.29%
M

MKS INC.

+33408.3%
Value
$94.8M
Shares
32.17M
% Port
3.18%
?
4.N/A

LANTHEUS HLDGS INC

+2078.6%
Value
$63M
Shares
43.27M
% Port
2.11%
L

LUMENTUM HLDGS INC

+598.3%
Value
$62.8M
Shares
9.62M
% Port
2.10%
H

HEWLETT PACKARD ENTERPRISE C

+18182.0%
Value
$57.6M
Shares
492.7K
% Port
1.93%
?
7.N/A

QXO INC

Unchanged
Value
$49.8M
Shares
1.01M
% Port
1.67%
N

NEXTERA ENERGY INC

+609.3%
Value
$47.5M
Shares
885.4K
% Port
1.59%
T

TETRA TECH INC NEW

+1682.4%
Value
$46.7M
Shares
44.29M
% Port
1.56%
B

BOEING CO

+1699.5%
Value
$46.5M
Shares
685.6K
% Port
1.56%
E
11.ETSY

ETSY INC

+3238.2%
Value
$45.5M
Shares
44.63M
% Port
1.53%
?
12.N/A

UBER TECHNOLOGIES INC

+1548.1%
Value
$43.3M
Shares
36.11M
% Port
1.45%
?
13.N/A

INTEGER HLDGS CORP

+2051.2%
Value
$41.9M
Shares
43.15M
% Port
1.40%
S
14.SNOW

SNOWFLAKE INC

+362.4%
Value
$41.6M
Shares
25.01M
% Port
1.39%
?
15.N/A

CHEFS WHSE INC

+293.1%
Value
$40.6M
Shares
18.16M
% Port
1.36%
?
16.N/A

MERIT MED SYS INC

Value
$39M
Shares
36.19M
% Port
1.31%
P

PG&E CORP

+508.2%
Value
$38.8M
Shares
37.88M
% Port
1.30%
?
18.N/A

DATADOG INC

-19.5%
Value
$37.4M
Shares
26.23M
% Port
1.25%
M

MICROCHIP TECHNOLOGY INC.

+2240.1%
Value
$37.2M
Shares
482.5K
% Port
1.25%
?
20.N/A

APOLLO GLOBAL MGMT INC

+2048.9%
Value
$36.4M
Shares
597.4K
% Port
1.22%
?
21.N/A

REVOLUTION MEDICINES INC

Value
$36.3M
Shares
28.94M
% Port
1.22%
?
22.N/A

POST HLDGS INC

+2197.7%
Value
$35.2M
Shares
33.96M
% Port
1.18%
?
23.N/A

CABLE ONE INC

+14.8%
Value
$34.9M
Shares
53.52M
% Port
1.17%
?
24.N/A

LIBERTY MEDIA CORP DEL

+17635.4%
Value
$34.8M
Shares
28.02M
% Port
1.17%
?
25.N/A

LIVE NATION ENTERTAINMENT IN

Unchanged
Value
$34.1M
Shares
28.50M
% Port
1.14%
?
26.N/A

JAZZ INVESTMENTS I LTD

Value
$33.5M
Shares
19.64M
% Port
1.12%
?
27.N/A

IRHYTHM HOLDINGS INC

+1345.5%
Value
$32.5M
Shares
29.52M
% Port
1.09%
A
28.AKAM

AKAMAI TECHNOLOGIES INC

+14876.1%
Value
$32.4M
Shares
26.96M
% Port
1.08%
?
29.N/A

BRIDGEBIO PHARMA INC

+856.8%
Value
$32.2M
Shares
29.01M
% Port
1.08%
W
30.WDC

WESTERN DIGITAL CORP

-10.2%
Value
$31.4M
Shares
1.86M
% Port
1.05%
?
31.N/A

FRESHPET INC

+509.2%
Value
$30.6M
Shares
26.29M
% Port
1.02%
?
32.N/A

CYBERARK SOFTWARE LTD

Value
$30.2M
Shares
18.18M
% Port
1.01%
?
33.N/A

CLOUDFLARE INC

Value
$30M
Shares
23.64M
% Port
1.00%
O
34.ON

ON SEMICONDUCTOR CORP

+248.5%
Value
$29.8M
Shares
16.36M
% Port
1.00%
?
35.N/A

PELOTON INTERACTIVE INC

+15.6%
Value
$29M
Shares
17.86M
% Port
0.97%
?
36.N/A

NINE ENERGY SERVICE INC

+126.0%
Value
$27.5M
Shares
2.12M
% Port
0.92%
?
37.N/A

AFFIRM HLDGS INC

+736.4%
Value
$27.4M
Shares
23.39M
% Port
0.92%
F
38.FLR

FLUOR CORP

+13099.4%
Value
$27.3M
Shares
20.59M
% Port
0.92%
?
39.N/A

LIBERTY MEDIA CORP DEL

+1964.4%
Value
$26.8M
Shares
23.33M
% Port
0.90%
?
40.N/A

BURLINGTON STORES INC

-14.5%
Value
$26.7M
Shares
16.75M
% Port
0.90%
U
41.U

UNITY SOFTWARE INC

+18868.6%
Value
$25.3M
Shares
22.38M
% Port
0.85%
I
42.IAU

ISHARES GOLD TR

-15.9%
Value
$24.8M
Shares
328.0K
% Port
0.83%
P
43.PSN

PARSONS CORP DEL

Unchanged
Value
$24.6M
Shares
24.98M
% Port
0.83%
?
44.N/A

PATRICK INDS INC

+757.0%
Value
$24.3M
Shares
16.42M
% Port
0.82%
?
45.N/A

NORTHERN OIL & GAS INC

+306.2%
Value
$24.3M
Shares
25.32M
% Port
0.81%
P
46.PRGS

PROGRESS SOFTWARE CORP

Unchanged
Value
$24.1M
Shares
25.05M
% Port
0.81%
B
47.BSTZ

BLACKROCK MUN TARGET TERM TR

+63.8%
Value
$23.5M
Shares
1.03M
% Port
0.79%
?
48.N/A

CABLE ONE INC

-23.1%
Value
$23.4M
Shares
35.84M
% Port
0.78%
?
49.N/A

DROPBOX INC

Unchanged
Value
$23.4M
Shares
23.10M
% Port
0.78%
?
50.N/A

DOORDASH INC

Value
$23.3M
Shares
23.65M
% Port
0.78%