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MACKAY SHIELDS LLC

Q3 2026 13F filing

Updated 23 days ago

297 disclosed positions worth $2.8B

Portfolio value
$2.8B
Total holdings
297
New positions
9
Closed positions
14
Increased
49
Decreased
16
Turnover
7.7%
Filed
2026-10-13

Full holdings

Every line item disclosed in Q3 2026

G

ALPHABET INC

+16026.1%
Value
$95.9M
Shares
1.94M
% Port
3.48%
H

HEWLETT PACKARD ENTERPRISE C

+18408.6%
Value
$80.8M
Shares
492.7K
% Port
2.93%
L

LUMENTUM HLDGS INC

+1725.8%
Value
$71.1M
Shares
9.62M
% Port
2.58%
S

SNOWFLAKE INC

+17.5%
Value
$63.5M
Shares
29.39M
% Port
2.30%
M

MKS INC.

+34121.3%
Value
$59M
Shares
32.17M
% Port
2.14%
N
6.NET

CLOUDFLARE INC

+43.5%
Value
$53.5M
Shares
33.92M
% Port
1.94%
?
7.N/A

REVOLUTION MEDICINES INC

+39.4%
Value
$52M
Shares
40.33M
% Port
1.88%
?
8.N/A

UBER TECHNOLOGIES INC

+1829.6%
Value
$48.4M
Shares
42.28M
% Port
1.76%
T

TETRA TECH INC NEW

Unchanged
Value
$47.1M
Shares
44.29M
% Port
1.71%
N

NEXTERA ENERGY INC

+1493.9%
Value
$43.2M
Shares
885.4K
% Port
1.57%
?
11.N/A

QXO INC

+2518.6%
Value
$43.1M
Shares
1.18M
% Port
1.56%
M
12.MMSI

MERIT MED SYS INC

Unchanged
Value
$42.1M
Shares
36.19M
% Port
1.53%
B

BOEING CO

+20178.0%
Value
$40.5M
Shares
685.6K
% Port
1.47%
?
14.N/A

DATADOG INC

Unchanged
Value
$37.8M
Shares
26.23M
% Port
1.37%
P

PG&E CORP

+18376.6%
Value
$37.2M
Shares
37.88M
% Port
1.35%
M

MICROCHIP TECHNOLOGY INC.

+452.1%
Value
$34.7M
Shares
519.4K
% Port
1.26%
P
17.PANW

CYBERARK SOFTWARE LTD

+2095.2%
Value
$34M
Shares
18.18M
% Port
1.23%
?
18.N/A

POST HLDGS INC

+2197.7%
Value
$33.5M
Shares
33.96M
% Port
1.22%
F

LIBERTY MEDIA CORP DEL

+18215.0%
Value
$32.9M
Shares
28.02M
% Port
1.19%
?
20.N/A

FRESHPET INC

+2600.8%
Value
$32.3M
Shares
28.66M
% Port
1.17%
?
21.N/A

IRHYTHM HOLDINGS INC

+42679.7%
Value
$31.4M
Shares
29.52M
% Port
1.14%
?
22.N/A

LIVE NATION ENTERTAINMENT IN

Unchanged
Value
$31.3M
Shares
28.50M
% Port
1.13%
O

ORACLE CORP

+14799.4%
Value
$30.6M
Shares
698.5K
% Port
1.11%
U
24.U

UNITY SOFTWARE INC

+2351.6%
Value
$30.1M
Shares
22.38M
% Port
1.09%
?
25.N/A

AFFIRM HLDGS INC

+3208.0%
Value
$30.1M
Shares
28.88M
% Port
1.09%
A
26.AKAM

AKAMAI TECHNOLOGIES INC

+15129.9%
Value
$30M
Shares
26.96M
% Port
1.09%
?
27.N/A

AXON ENTERPRISE INC

Value
$30M
Shares
30.39M
% Port
1.09%
?
28.N/A

BRIDGEBIO PHARMA INC

Unchanged
Value
$29.8M
Shares
29.01M
% Port
1.08%
E
29.ETSY

ETSY INC

Value
$29.8M
Shares
26.90M
% Port
1.08%
G
30.GWRE

GUIDEWIRE SOFTWARE INC

+2648.5%
Value
$29.8M
Shares
30.40M
% Port
1.08%
W
31.WDC

WESTERN DIGITAL CORP

-64.5%
Value
$28.4M
Shares
2.37M
% Port
1.03%
?
32.N/A

NEBIUS GROUP N.V.

Value
$26.3M
Shares
14.22M
% Port
0.95%
?
33.N/A

DROPBOX INC

+1787.2%
Value
$25.6M
Shares
23.10M
% Port
0.93%
?
34.N/A

PELOTON INTERACTIVE INC

+592.4%
Value
$25.5M
Shares
17.86M
% Port
0.92%
N
35.NOG

NORTHERN OIL & GAS INC

+309.6%
Value
$25.5M
Shares
25.32M
% Port
0.92%
F
36.FLR

FLUOR CORP

+352.8%
Value
$25.5M
Shares
20.59M
% Port
0.92%
F

SIRIUSXM HOLDINGS INC

Unchanged
Value
$24.9M
Shares
23.33M
% Port
0.90%
?
38.N/A

NOVA LTD

Value
$24.7M
Shares
17.55M
% Port
0.89%
P
39.PRGS

PROGRESS SOFTWARE CORP

+32012.8%
Value
$24.6M
Shares
25.05M
% Port
0.89%
R
40.RBRK

RUBRIK INC.

+45.1%
Value
$24.6M
Shares
20.59M
% Port
0.89%
O
41.ON

ON SEMICONDUCTOR CORP

+1963.0%
Value
$24.3M
Shares
16.36M
% Port
0.88%
P
42.PSN

PARSONS CORP DEL

+2011.9%
Value
$23.5M
Shares
24.98M
% Port
0.85%
?
43.N/A

ITRON INC

Value
$23.5M
Shares
24.35M
% Port
0.85%
A
44.ARWR

ARROWHEAD PHARMACEUTICALS IN

+3073.7%
Value
$23.4M
Shares
22.82M
% Port
0.85%
?
45.N/A

BURLINGTON STORES INC

Unchanged
Value
$22.9M
Shares
16.75M
% Port
0.83%
D
46.DASH

DOORDASH INC

+2131.1%
Value
$22.5M
Shares
23.65M
% Port
0.82%
B
47.BSTZ

BLACKROCK MUN TARGET TERM TR

Unchanged
Value
$22.5M
Shares
1.03M
% Port
0.82%
?
48.N/A

TEMPUS AI INC

Value
$22.4M
Shares
17.78M
% Port
0.81%
W
49.WDC

WESTERN DIGITAL CORP

-72.3%
Value
$22.2M
Shares
1.85M
% Port
0.80%
A

ARES MANAGEMENT CORPORATION

+34965.8%
Value
$21.4M
Shares
559.6K
% Port
0.78%