13F Insight
DOSSIER · 13F-HR · Q3 2026

MACKAY SHIELDS LLC

$2.8B in tracked AUM across 297 positions as of Q3 2026.

MS
CIK 0000061227 · last filed Sep 30, 2026
Total AUM
$2.8B
as of Q3 2026
Holdings
297
—
positions
Whale Score
56
56
tracked
Activity
—
no data
changes this Q
AI Analysis · Q3 2026

MACKAY SHIELDS LLC filed its latest 13F-HR for Q3 2026. See the latest holdings and position changes below.

Quarter at a glance — Q3 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q3 2026.

#HoldingValueSharesWeight
01
02079K404
ALPHABET INC
$120M2.4M4.3%02
HPE 7.625 09/01/27
HEWLETT PACKARD ENTERPRISE C
$99M601K3.6%03
SNOW 0 10/01/27
SNOWFLAKE INC
$80M36.9M2.9%04
LITE 0.5 06/15/28
LUMENTUM HLDGS INC
$75M10.1M2.7%05
MKSI 1.25 06/01/30
MKS INC.
$67M36.5M2.4%06
NET 0 06/15/30
CLOUDFLARE INC
$66M41.9M2.4%07
RVMD 0.5 05/01/33
REVOLUTION MEDICINES INC
$63M48.7M2.3%08
90353TAM2
UBER TECHNOLOGIES INC
$59M51.8M2.1%09
TTEK 2.25 08/15/28
TETRA TECH INC NEW
$56M52.4M2.0%10
WDC 3 11/15/28
WESTERN DIGITAL CORP
$53M4.4M1.9%

Filing history

2026Q3Sep 30
$2.8B▼ 7.6%
297 positionsView →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 positionsLocked2025Q2Jun 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 positionsLocked
Showing 12 of 100