13F Insight
DOSSIER · 13F-HR · Q2 2026

MACKAY SHIELDS LLC

$3.0B in tracked AUM across 306 positions as of Q2 2026.

MS
CIK 0000061227 · last filed Jun 30, 2026
Total AUM
$3.0B
as of Q2 2026
Holdings
306
—
positions
Whale Score
56
56
tracked
Activity
—
no data
changes this Q
AI Analysis · Q2 2026

MACKAY SHIELDS LLC filed its latest 13F-HR for Q2 2026. See the latest holdings and position changes below.

Quarter at a glance — Q2 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q2 2026.

#HoldingValueSharesWeight
01
WDC 3 11/15/28
WESTERN DIGITAL CORP
$151M9.0M5.1%02
02079K404
ALPHABET INC
$123M2.4M4.1%03
MKSI 1.25 06/01/30
MKS INC.
$107M36.5M3.6%04
LITE 0.5 06/15/28
LUMENTUM HLDGS INC
$84M12.9M2.8%05
LNTH 2.625 12/15/27
LANTHEUS HLDGS INC
$74M50.9M2.5%06
HPE 7.625 09/01/27
HEWLETT PACKARD ENTERPRISE C
$70M601K2.4%07
CABO 1.125 03/15/28
CABLE ONE INC
$59M89.9M2.0%08
QXO 5.5 05/15/28
QXO INC
$57M1.2M1.9%09
BA 6 10/15/27
BOEING CO
$56M829K1.9%10
TTEK 2.25 08/15/28
TETRA TECH INC NEW
$55M52.4M1.9%

Filing history

2026Q2Jun 30
$3.0B▲ 9.4%
306 positionsView →2026Q1Mar 31
$2.7B▼ 4.5%
307 positionsView →2025Q4Dec 31
$2.9B▲ 6.7%
340 positionsView →2025Q3Sep 30
$2.7B▼ 14.2%
320 positionsView →2025Q2Jun 30
$3.1B▲ 10.7%
364 positionsLocked2025Q1Mar 31
$2.8B▼ 16.9%
324 positionsLocked2024Q4Dec 31
$3.4B▼ 7.0%
367 positionsLocked2024Q3Sep 30
$3.6B▲ 10.9%
368 positionsLocked2024Q2Jun 30
$3.3B▼ 8.8%
345 positionsLocked2024Q1Mar 31
$3.6B▲ 5.3%
361 positionsLocked2023Q4Dec 31
$3.4B▼ 5.7%
360 positionsLocked2023Q3Sep 30
$3.6B▲ 1.6%
333 positionsLocked
Showing 12 of 100