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Portfolio (Quarterly) Guide ↗

MACKAY SHIELDS LLC

· CIK 0000061227
13F Portfolio $2.9B AUM Filed Oct 27, 2025 EDGAR ↗ ← All Funds
Q4 2025 Q3 2025 · All 136 New
Page 1 of 7  ·  136 positions
# Ticker Company Sector Shares Value ↓ % Port Chg Shares Chg % Period Price ① Since Period ①
1 SEAGATE HDD CAYMAN 25,568,000.0 $73.7M 2.51% NEW $2.88
2 QXO INC 1,186,085.0 $65.5M 2.23% NEW $55.22
3 TETRA TECH INC NEW 58,598,000.0 $63.5M 2.16% NEW $1.08
4 UBER TECHNOLOGIES INC 42,991,000.0 $63.3M 2.15% NEW $1.47
5 MIRUM PHARMACEUTICALS INC 26,219,000.0 $63.1M 2.15% NEW $2.41
6 ADVANCED ENERGY INDS 45,174,000.0 $62.7M 2.13% NEW $1.39
7 WESTERN DIGITAL CORP 19,228,000.0 $61.7M 2.10% NEW $3.21
8 PG&E CORP 60,439,000.0 $61.3M 2.08% NEW $1.01
9 LANTHEUS HLDGS INC 55,673,000.0 $58.7M 2.00% NEW $1.05
10 BOEING CO 841,981.0 $58.6M 1.99% NEW $69.54
11 HALOZYME THERAPEUTICS INC 50,503,000.0 $58.0M 1.97% NEW $1.15
12 CABLE ONE INC 67,424,000.0 $57.7M 1.96% NEW $0.86
13 POST HLDGS INC 50,121,000.0 $56.3M 1.92% NEW $1.12
14 NUTANIX INC 40,670,000.0 $56.1M 1.91% NEW $1.38
15 APOLLO GLOBAL MGMT INC 721,847.0 $51.0M 1.74% NEW $70.64
16 OSI SYSTEMS INC 32,536,000.0 $47.3M 1.61% NEW $1.45
17 LIBERTY MEDIA CORP DEL 34,433,000.0 $45.7M 1.56% NEW $1.33
18 ON SEMICONDUCTOR CORP 39,979,000.0 $45.6M 1.55% NEW $1.14
19 IRHYTHM TECHNOLOGIES INC 30,856,000.0 $42.5M 1.45% NEW $1.38
20 LUMENTUM HLDGS INC 30,445,000.0 $42.5M 1.45% NEW $1.40
Page 1 of 7  ·  136 positions

Period Price is the implied market price on the last day of the reporting period, calculated as reported value ÷ shares held. It is not the fund's purchase price or cost basis — the fund may have initiated or added to the position at any point during the quarter at a different price. Since Period shows the price change from that quarter-end snapshot to today's last price — it reflects stock movement after the report date, not the fund's actual return.

Sector Allocation
Financial Services 80.0%
Energy 16.1%
Communication Services 3.7%
Consumer Defensive 0.2%