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Mackay Shields LLC

SEC CIK
0000061227
Latest filing
Jul 28, 2026

Holdings in Q4 2023

Holdings as of Dec 31, 2023, filed Feb 2, 2024. Long positions only; changes compare share counts with Q3 2023.

Institution overview
Positions
139
+2 vs. Q3 2023
Portfolio value
$3.43B
−$207.5M (−5.7%) vs. Q3 2023
Filed
Feb 2, 2024
SEC
Holdings of Mackay Shields LLC in Q4 2023
SecurityClassSharesValue% of portfolioShare changeActionHistory
DHRDanaher CorpStock150,217$34.8M1.0%00.0%UnchangedHistory
Centennial Resource Dev Inc15136AAA0NOTE 3.250% 4/0–$35.4M1.0%–––
IAUiShares Gold TrustETF929,500$36.3M1.1%00.0%UnchangedHistory
Enphase Energy, Inc.29355AAH0NOTE 3/0–$36.5M1.1%–––
Datadog, Inc.23804LAB9NOTE 0.125% 6/1–$36.9M1.1%–––
Bank of Amer Corp0605056827.25%CNV PFD L31,001$37.4M1.1%−707−2.2%Reduced–
Zscaler, Inc.98980GAB8NOTE 0.125% 7/0–$38.7M1.1%–––
Post Hldgs Inc737446AT1NOTE 2.500% 8/1–$39.1M1.1%–––
EQT Corp26884LAK5NOTE 1.750% 5/0–$39.8M1.2%–––
Akamai Technologies Inc00971TAL5NOTE 0.375% 9/0–$40.9M1.2%–––
SHIFT4 PMTS Inc82452JAB5NOTE 12/1–$41.3M1.2%–––
Halozyme Therapeutics, Inc.40637HAF6NOTE 1.000% 8/1–$42.2M1.2%–––
Apollo Global Mgmt Inc03769M304SER A MAND CNV750,028$42.3M1.2%−352,471−32.0%Reduced–
Booking Holdings Inc.09857LAN8NOTE 0.750% 5/0–$42.5M1.2%–––
Etsy Inc29786AAN6NOTE 0.250% 6/1–$43.3M1.3%–––
Splunk Inc848637AD6NOTE 1.125% 9/1–$43.3M1.3%–––
Dexcom Inc252131AK3NOTE 0.250%11/1–$44.0M1.3%–––
Square Inc852234AF0NOTE 0.125% 3/0–$44.2M1.3%–––
TALOTalos Energy Inc.COM3,152,973$44.9M1.3%00.0%UnchangedHistory
Zillow Group, Inc.98954MAH4NOTE 2.750% 5/1–$46.5M1.4%–––
Nextera Energy Inc65339F713UNIT 09/01/20251,258,553$48.1M1.4%+595,780+89.9%Added–
Patk703343AG812/01/2028–$49.6M1.4%–––
Lumentum Hldgs Inc55024UAD1NOTE 0.500%12/1–$54.7M1.6%–––
Oil STS Intl Inc678026AK1NOTE 4.750% 4/0–$55.0M1.6%–––
MGP Ingredients Inc55303JAB2NOTE 1.875%11/1–$56.2M1.6%–––
CONMED Corp207410AH4NOTE 2.250% 6/1–$56.7M1.7%–––
Vail Resorts Inc91879QAN9NOTE 1/0–$61.2M1.8%–––
Lantheus Hldgs Inc516544AB9NOTE 2.625%12/1–$64.3M1.9%–New–
Southwest Airls Co844741BG2NOTE 1.250% 5/0–$64.8M1.9%–––
Ford MTR Co Del345370CZ1NOTE 3/1–$69.9M2.0%–––
Exact Sciences Corp30063PAC9NOTE 0.375% 3/0–$71.0M2.1%–––
Palo Alto Networks Inc697435AF2NOTE 0.375% 6/0–$77.4M2.3%–––
Biomarin Pharmaceutical Inc09061GAK7NOTE 1.250% 5/1–$78.4M2.3%–––
NRG Energy, Inc.629377CG5DBCV 2.750% 6/0–$81.0M2.4%–––
Microchip Technology Inc595017AU8NOTE 0.125%11/1–$85.9M2.5%–––
DISH Network CORP25470MAD1NOTE 2.375% 3/1–$88.8M2.6%–––
Pioneer Nat Res Co723787AP2NOTE 0.250% 5/1–$89.1M2.6%–––
NICE Ltd.653656AB4NOTE 9/1–$103.3M3.0%–––
GPORGulfport Energy CorpCOMMON SHARES1,066,363$142.0M4.1%−366,878−25.6%ReducedHistory

Sold out since Q3 2023 (12)

Positions held at the end of Q3 2023 that are gone from this filing.

Positions of Mackay Shields LLC sold out since Q3 2023
SecurityClassShares in Q3 2023Value in Q3 2023% of portfolio in Q3 2023History
Chart Inds Inc16115QAE0NOTE 1.000%11/1–$48.8M1.3%–
FLRFluor CorpStock848,588$31.1M0.9%History
JetBlue Airways Corp477143AP6NOTE 0.500% 4/0–$7.24M0.2%–
Liberty Media Corp Del531229AB8NOTE 1.375%10/1–$4.58M0.1%–
Spirit Airls Inc848577AB8NOTE 1.000% 5/1–$3.52M0.1%–
iShares Iboxx $ Investment Grade Corporate Bond ETF464287242ETF14,280$1.46M<0.1%–
iShares Tr464288588MBS ETF9,050$803.6K<0.1%–
iShares Tr4642886613 7 YR TREAS BD3,080$348.5K<0.1%–
NBONeuberger Berman New York Municipal Fund Inc.COM25,745$225.5K<0.1%History
iShares Tr46428743220 YR TR BD ETF2,535$224.8K<0.1%–
Exact Sciences Corp30063PAB1NOTE 0.375% 3/1–$147.4K<0.1%–
Carnival Corp143658BT8NOTE 5.750%10/0–$28.5K<0.1%–