2026 Q2 Portfolio Activity
In 2026 Q2, MACKAY SHIELDS LLC maintained a portfolio of 124 distinct positions. They heavily accumulated shares in WESTERN DIGITAL CORP, increasing the position by 19793.3%. Conversely, MACKAY SHIELDS LLC completely exited their position in LUMENTUM HLDGS INC.
Position History
hover any row below to update
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Total Positions
124
Quarter
2026 Q2
Top Holding
N/A (5.1%)
Top 10 Concentration
28.0%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 124
MACKAY SHIELDS LLC Full Holdings List — 2026 Q2
| 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 | 5.05% | 4.06% |
#1
1
Prev: #2
|
4.0 |
—
|
-6,524,000 | -42.2% |
P
S
|
8,952,000 | $150,816,792 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
ALPHABET INC
|
|
Unknown | 4.11% | — |
#2
Prev: #—
|
6.6 |
—
|
2,427,303 | — |
NEW
|
2,427,303 | $122,643,950 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
MKS INC.
|
|
Bond/Debt | 3.60% | 2.21% |
#3
4
Prev: #7
|
2.9 |
—
|
-40,000 | -0.1% |
P
S
|
36,470,000 | $107,477,663 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
LUMENTUM HLDGS ...
|
|
Bond/Debt | 2.82% | 5.26% |
#4
3
Prev: #1
|
1.6 |
—
|
-13,902,000 | -51.9% |
P
S
|
12,884,000 | $84,112,403 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
LANTHEUS HLDGS ...
|
|
Bond/Debt | 2.48% | 2.24% |
#5
1
Prev: #6
|
2.0 |
—
|
-35,000 | -0.1% |
P
S
|
50,863,000 | $74,003,121 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
HPE/PRC
HEWLETT PACKARD...
|
Unknown | 2.35% | 1.43% |
#6
13
Prev: #19
|
1.4 |
—
|
-593 | -0.1% |
P
S
|
601,263 | $70,210,944 | 2024 Q3 | 13F Filing | 2026-06-30 | 2026-07-28 | |||
|
N/A
CABLE ONE INC
|
|
Bond/Debt | 1.97% | 2.14% |
#7
1
Prev: #8
|
2.8 |
—
|
12,529,000 | 16.2% |
P
S
|
89,888,000 | $58,775,896 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
QXOBV
QXO INC
|
Preferred | 1.92% | 2.39% |
#8
3
Prev: #5
|
1.3 |
—
|
-873 | -0.1% |
P
S
|
1,169,488 | $57,413,691 | 2025 Q2 | 13F Filing | 2026-06-30 | 2026-07-28 | |||
|
BA/PRA
BOEING CO
|
Preferred | 1.88% | 1.98% |
#9
2
Prev: #11
|
1.3 |
—
|
-740 | -0.1% |
P
S
|
828,674 | $56,171,414 | 2024 Q4 | 13F Filing | 2026-06-30 | 2026-07-28 | |||
|
N/A
TETRA TECH INC ...
|
|
Unknown | 1.85% | 2.10% |
#10
1
Prev: #9
|
1.2 |
—
|
-2,073,000 | -3.8% |
P
S
|
52,445,000 | $55,268,887 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
UBER TECHNOLOGI...
|
|
Bond/Debt | 1.82% | 2.00% |
#11
1
Prev: #10
|
1.2 |
—
|
12,000 | 0.0% |
P
S
|
45,364,000 | $54,331,944 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
SNOWFLAKE INC
|
|
Bond/Debt | 1.81% | 1.41% |
#12
8
Prev: #20
|
1.2 |
—
|
-29,000 | -0.1% |
P
S
|
32,541,000 | $54,155,943 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
CHEFS WHSE INC
|
|
Bond/Debt | 1.78% | 1.29% |
#13
14
Prev: #27
|
1.2 |
—
|
-39,000 | -0.2% |
P
S
|
23,710,000 | $53,041,671 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
ETSY INC
|
|
Bond/Debt | 1.70% | 1.17% |
#14
21
Prev: #35
|
3.7 |
—
|
17,150,000 | 52.4% |
P
S
|
49,886,000 | $50,886,574 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
NEE/PRS
NEXTERA ENERGY ...
|
Unknown | 1.69% | 0.98% |
#15
27
Prev: #42
|
3.7 |
—
|
468,014 | 99.0% |
P
S
|
940,950 | $50,463,149 | 2025 Q3 | 13F Filing | 2026-06-30 | 2026-07-28 | |||
|
N/A
PG&E CORP
|
|
Bond/Debt | 1.59% | 1.76% |
#16
3
Prev: #13
|
1.1 |
—
|
69,000 | 0.1% |
P
S
|
46,453,000 | $47,525,062 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
MCHPP
MICROCHIP TECHN...
|
Technology | 1.56% | 1.26% |
#17
12
Prev: #29
|
1.1 |
—
|
2,444 | 0.4% |
P
S
|
603,491 | $46,450,746 | 2025 Q1 | 13F Filing | 2026-06-30 | 2026-07-28 | |||
|
BTT
BLACKROCK MUN T...
|
Financial Services | 1.50% | 1.30% |
#18
8
Prev: #26
|
3.1 |
—
|
401,718 | 25.6% |
P
S
|
1,967,980 | $44,771,545 | 2016 Q3 | 13F Filing | 2026-06-30 | 2026-07-28 | |||
|
N/A
INTEGER HLDGS C...
|
|
Unknown | 1.47% | 1.59% |
#19
4
Prev: #15
|
1.1 |
—
|
84,000 | 0.2% |
P
S
|
45,243,000 | $43,942,264 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
APO/PRA
APOLLO GLOBAL M...
|
Unknown | 1.46% | 1.54% |
#20
4
Prev: #16
|
1.1 |
—
|
-656 | -0.1% |
P
S
|
713,153 | $43,457,785 | 2023 Q3 | 13F Filing | 2026-06-30 | 2026-07-28 | |||
|
N/A
LIBERTY MEDIA C...
|
|
Bond/Debt | 1.41% | 1.44% |
#21
4
Prev: #17
|
1.1 |
—
|
-78,000 | -0.2% |
P
S
|
33,894,000 | $42,050,710 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
POST HLDGS INC
|
|
Bond/Debt | 1.40% | 1.60% |
#22
8
Prev: #14
|
1.1 |
—
|
-67,000 | -0.2% |
P
S
|
40,161,000 | $41,655,230 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
MERIT MED SYS I...
|
|
Bond/Debt | 1.38% | — |
#23
Prev: #—
|
4.1 |
—
|
38,073,000 | — |
NEW
|
38,073,000 | $41,080,767 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
AKAMAI TECHNOLO...
|
|
Bond/Debt | 1.37% | 1.44% |
#24
6
Prev: #18
|
1.0 |
—
|
205,000 | 0.6% |
P
S
|
34,024,000 | $40,843,389 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
ON SEMICONDUCTO...
|
|
Bond/Debt | 1.34% | 1.86% |
#25
13
Prev: #12
|
0.5 |
—
|
-17,222,000 | -44.0% |
P
S
|
21,949,000 | $39,963,727 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
NINE ENERGY SER...
|
|
Unknown | 1.31% | 0.92% |
#26
23
Prev: #49
|
1.0 |
—
|
-54,869 | -1.8% |
P
S
|
3,011,565 | $39,180,461 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
DATADOG INC
|
|
Bond/Debt | 1.31% | 1.20% |
#27
5
Prev: #32
|
1.0 |
—
|
-6,364,000 | -18.8% |
P
S
|
27,438,000 | $39,071,712 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
REVOLUTION MEDI...
|
|
Bond/Debt | 1.28% | — |
#28
Prev: #—
|
4.0 |
—
|
30,344,000 | — |
NEW
|
30,344,000 | $38,069,140 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
FRESHPET INC
|
|
Bond/Debt | 1.24% | 1.34% |
#29
5
Prev: #24
|
1.0 |
—
|
9,000 | 0.0% |
P
S
|
31,800,000 | $36,956,373 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
BRIDGEBIO PHARM...
|
|
Bond/Debt | 1.24% | 1.37% |
#30
8
Prev: #22
|
1.0 |
—
|
-56,000 | -0.2% |
P
S
|
33,259,000 | $36,917,577 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
IRHYTHM HOLDING...
|
|
Bond/Debt | 1.20% | 1.31% |
#31
6
Prev: #25
|
1.0 |
—
|
-33,000 | -0.1% |
P
S
|
32,598,000 | $35,896,303 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
LIVE NATION ENT...
|
|
Bond/Debt | 1.19% | 1.18% |
#32
2
Prev: #34
|
1.5 |
—
|
no change | no change |
P
S
|
29,737,000 | $35,565,452 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
PELOTON INTERAC...
|
|
Bond/Debt | 1.17% | 0.95% |
#33
10
Prev: #43
|
2.5 |
—
|
2,082,000 | 10.7% |
P
S
|
21,499,000 | $34,867,996 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
FLUOR CORP
|
|
Bond/Debt | 1.16% | 1.19% |
#34
1
Prev: #33
|
1.0 |
—
|
-145,000 | -0.6% |
P
S
|
26,167,000 | $34,699,438 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
JAZZ INVESTMENT...
|
|
Bond/Debt | 1.16% | — |
#35
Prev: #—
|
4.0 |
—
|
20,318,000 | — |
NEW
|
20,318,000 | $34,657,429 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
NORTHERN OIL & ...
|
|
Bond/Debt | 1.07% | 1.34% |
#36
13
Prev: #23
|
0.9 |
—
|
-55,000 | -0.2% |
P
S
|
33,241,000 | $31,899,375 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
AFFIRM HLDGS IN...
|
|
Bond/Debt | 1.06% | 0.93% |
#37
11
Prev: #48
|
0.9 |
—
|
-37,000 | -0.1% |
P
S
|
27,113,000 | $31,704,730 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
CYBERARK SOFTWA...
|
|
Bond/Debt | 1.06% | — |
#38
Prev: #—
|
3.9 |
—
|
19,004,000 | — |
NEW
|
19,004,000 | $31,616,914 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
CLOUDFLARE INC
|
|
Bond/Debt | 1.06% | — |
#39
Prev: #—
|
3.9 |
—
|
24,872,000 | — |
NEW
|
24,872,000 | $31,512,824 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
UNITY SOFTWARE ...
|
|
Bond/Debt | 1.02% | 0.98% |
#40
Prev: #40
|
0.9 |
—
|
2,000 | 0.0% |
P
S
|
26,904,000 | $30,459,761 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
ORACLE CORP
|
|
Unknown | 0.98% | 1.09% |
#41
4
Prev: #37
|
0.9 |
—
|
-1,045 | -0.2% |
P
S
|
645,801 | $29,118,755 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
MERITAGE HOMES ...
|
|
Bond/Debt | 0.97% | 1.00% |
#42
3
Prev: #39
|
0.9 |
—
|
-94,000 | -0.3% |
P
S
|
28,031,000 | $28,997,541 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
PATRICK INDS IN...
|
|
Bond/Debt | 0.95% | 1.22% |
#43
12
Prev: #31
|
0.9 |
—
|
-18,000 | -0.1% |
P
S
|
19,118,000 | $28,330,050 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
LIBERTY MEDIA C...
|
|
Bond/Debt | 0.94% | 0.93% |
#44
3
Prev: #47
|
1.4 |
—
|
no change | no change |
P
S
|
24,458,000 | $28,083,899 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
BURLINGTON STOR...
|
|
Bond/Debt | 0.94% | 1.24% |
#45
15
Prev: #30
|
0.9 |
—
|
-2,850,000 | -14.0% |
P
S
|
17,529,000 | $27,985,049 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
PROGRESS SOFTWA...
|
|
Bond/Debt | 0.92% | 0.94% |
#46
Prev: #46
|
0.9 |
—
|
-103,000 | -0.4% |
P
S
|
28,590,000 | $27,466,838 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
BAC/PRL
BANK OF AMER CO...
|
Preferred | 0.88% | 0.91% |
#47
4
Prev: #51
|
0.9 |
—
|
-61 | -0.3% |
P
S
|
20,806 | $26,133,216 | 2010 Q1 | 13F Filing | 2026-06-30 | 2026-07-28 | |||
|
N/A
PARSONS CORP DE...
|
|
Bond/Debt | 0.86% | 0.95% |
#48
4
Prev: #44
|
0.8 |
—
|
34,000 | 0.1% |
P
S
|
26,167,000 | $25,808,512 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
N/A
BIOMARIN PHARMA...
|
|
Bond/Debt | 0.86% | 0.94% |
#49
4
Prev: #45
|
0.8 |
—
|
-68,000 | -0.3% |
P
S
|
26,434,000 | $25,738,211 | — | 13F Filing | 2026-06-30 | 2026-07-28 | ||
|
IAU
ISHARES GOLD TR
|
ETF | 0.83% | 1.26% |
#50
22
Prev: #28
|
0.8 |
—
|
-62,130 | -15.9% |
P
S
|
328,020 | $24,768,790 | 2017 Q1 | 13F Filing | 2026-06-30 | 2026-07-28 |
Showing 1-50 of 124 holdings