MACKAY SHIELDS LLC
Q3 2026 Form 13-F

NEW YORK, NEW YORK
CIK 0000061227 · CRD 107717 · SEC-registered investment adviser
Consolidated report · includes 7 managers since Q2 2013
$2.8B Reported Value Total

MACKAY SHIELDS LLC reports 366 total accounts under management (AUM). There are 366 discretionary accounts valued at $159,521,129,399, and 0 non-discretionary accounts.

Source: Form ADV filed * Note that certain holdings are exempt from Form 13-F reporting, so the AUM totals may be greater than the Form 13-F total.
SEC Registered Discretionary Manager
Private funds (Form ADV)
33 funds · $14.4B gross asset value
Hedge Fund: $12.4B · Private Equity Fund: $930.7M · Securitized Asset Fund: $754.1M · Other: $255.5M
Source: Form ADV filed 2026-08-06
Reported value
$2.8B
Quarter over quarter
-6.2%
Holdings
29
Top-10 concentration
26.7%

Reports holdings for

Key People

Form ADV owners & control persons
Naim (nmn) Abou-Jaoude
CHAIRMAN OF THE BOARD OF MANAGERS
Rene Arturo Bustamante
CHIEF ADMINISTRATIVE OFFICER, EXECUTIVE MANAGING DIRECTOR
Michael Daniel Corker
CHIEF FINANCIAL OFFICER, SENIOR MANAGING DIRECTOR

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Q3 2026 13F record

Q3 2026 13F filing summary

Q3 2026 Form 13F portfolio summary
Period of report September 30, 2026
Filed October 13, 2026
Form 13F-HR
Reported value $2.8B
Positions 29
Change in reported value -7.6%
New positions 9
Exited positions 14
Position turnover 53.5%
Top-10 concentration 26.7%

13F filings by quarter

Form 13F filings by quarter
Quarter Positions Value
Q3 2026 13F
Filed Oct 13, 2026
29 $2.8B
Q2 2026 13F
Filed Jul 28, 2026
32 $3.0B
Q1 2026 13F
Filed Apr 27, 2026
37 $2.7B
Q4 2025 13F
Filed Jan 29, 2026
48 $2.9B
Q3 2025 13F
Filed Oct 27, 2025
54 $2.9B
Q2 2025 13F
Filed Jul 24, 2025
59 $3.1B
Q1 2025 13F
Filed Apr 29, 2025
58 $3.1B
Q4 2024 13F
Filed Feb 4, 2025
57 $3.4B
Q3 2024 13F
Filed Oct 31, 2024
54 $3.6B
Q2 2024 13F
Filed Aug 8, 2024
53 $3.3B
Q1 2024 13F
Filed May 3, 2024
48 $3.6B
Q4 2023 13F
Filed Feb 2, 2024
45 $3.4B
Q3 2023 13F
Filed Oct 25, 2023
41 $3.6B
Q2 2023 13F
Filed Jul 27, 2023
49 $3.6B
Q1 2023 13F
Filed Apr 27, 2023
52 $3.6B
Q4 2022 13F
Filed Jan 31, 2023
56 $3.9B
Q3 2022 13F
Filed Nov 2, 2022
61 $4.0B
Q2 2022 13F
Filed Aug 3, 2022
63 $4.1B
Q1 2022 13F
Filed May 13, 2022
553 $11.4B
Q4 2021 13F
Filed Feb 4, 2022
552 $12.0B

34 earlier quarters on file — choose one from the quarter menu above.

Top 20 holdings · Q3 2026

Largest Q3 2026 13F positions by reported value
# Holding Reported value % of portfolio
1 GGLAP ALPHABET INC $119.7M 4.34%
2 HPEPRC HEWLETT PACKARD ENTERPRISE C $98.6M 3.57%
3 SNOW 0 10/01/27 SNOWFLAKE INC $79.6M 2.89%
4 LITE 0.5 06/15/28 LUMENTUM HLDGS INC $75.0M 2.72%
5 MKSI 1.25 06/01/30 MKS INC. $66.9M 2.43%
6 NET 0 06/15/30 CLOUDFLARE INC $66.1M 2.4%
7 RVMD 0.5 05/01/33 REVOLUTION MEDICINES INC $62.8M 2.28%
8 UBER 0.875 12/01/28 2028 UBER TECHNOLOGIES INC $59.3M 2.15%
9 TTEK 2.25 08/15/28 TETRA TECH INC NEW $55.7M 2.02%
10 WDC 3 11/15/28 WESTERN DIGITAL CORP $52.7M 1.91%
11 QXOPRB QXO INC $52.2M 1.89%
12 PCG 4.25 12/01/27 PG&E CORP $50.4M 1.83%
13 BAPRA BOEING CO $48.9M 1.77%
14 NEEPRS NEXTERA ENERGY INC $45.9M 1.66%
15 MMSI 3 02/01/29 MERIT MED SYS INC $44.2M 1.6%
16 MCHPP MICROCHIP TECHNOLOGY INC. $43.0M 1.56%
17 BTT BLACKROCK MUN TARGET TERM TR $43.0M 1.56%
18 AKAM 0.375 09/01/27 AKAMAI TECHNOLOGIES INC $42.1M 1.53%
19 FRPT 3 04/01/28 FRESHPET INC $41.1M 1.49%
20 FWONK 2.25 08/15/27 LIBERTY MEDIA CORP DEL $39.8M 1.44%

Values as reported on the Q3 2026 Form 13F. Every position is in the holdings table below.

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