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Mackay Shields LLC

SEC CIK
0000061227
Latest filing
Jul 28, 2026

Holdings in Q3 2024

Holdings as of Sep 30, 2024, filed Oct 31, 2024. Long positions only; changes compare share counts with Q2 2024.

Institution overview
Positions
144
+5 vs. Q2 2024
Portfolio value
$3.65B
+$359.2M (+10.9%) vs. Q2 2024
Filed
Oct 31, 2024
SEC
Holdings of Mackay Shields LLC in Q3 2024
SecurityClassSharesValue% of portfolioShare changeActionHistory
Lantheus Hldgs Inc516544AB9NOTE 2.625%12/1–$87.6M2.4%–––
Tetra Tech Inc88162GAB9DBCV 2.250% 8/1–$85.2M2.3%–New–
TransMedics Group, Inc.89377MAB5NOTE 1.500% 6/0–$81.2M2.2%–––
Microchip Technology Inc595017AU8NOTE 0.125%11/1–$77.4M2.1%–––
NRG Energy, Inc.629377CG5DBCV 2.750% 6/0–$74.4M2.0%–––
Zillow Group, Inc.98954MAG6NOTE 1.375% 9/0–$72.6M2.0%–––
Post Hldgs Inc737446AT1NOTE 2.500% 8/1–$70.7M1.9%–––
Biomarin Pharmaceutical Inc09061GAK7NOTE 1.250% 5/1–$69.2M1.9%–––
Ford MTR Co Del345370CZ1NOTE 3/1–$68.1M1.9%–––
Integer Hldgs Corp45826HAB5NOTE 2.125% 2/1–$67.4M1.8%–––
NICE Ltd.653656AB4NOTE 9/1–$67.0M1.8%–––
Southwest Airls Co844741BG2NOTE 1.250% 5/0–$64.1M1.8%–––
Patk703343AG812/01/2028–$64.0M1.8%–––
Lumentum Hldgs Inc55024UAD1NOTE 0.500%12/1–$59.5M1.6%–––
Nextera Energy Inc65339F713UNIT 09/01/20251,237,870$58.4M1.6%−6,363−0.5%Reduced–
On Semiconductor Corp682189AU9NOTE 0.500% 3/0–$57.5M1.6%–––
Halozyme Therapeutics, Inc.40637HAF6NOTE 1.000% 8/1–$52.9M1.5%–––
CONMED Corp207410AH4NOTE 2.250% 6/1–$51.6M1.4%–––
MGP Ingredients Inc55303JAB2NOTE 1.875%11/1–$50.9M1.4%–––
Apollo Global Mgmt Inc03769M304SER A MAND CNV740,081$50.6M1.4%+509+0.1%Added–
Live Nation Entertainment IN538034BA6NOTE 3.125% 1/1–$50.1M1.4%–––
Booking Holdings Inc.09857LAN8NOTE 0.750% 5/0–$50.0M1.4%–––
Nutanix, Inc.67059NAH1NOTE 0.250%10/0–$49.7M1.4%–––
Mirum Pharmaceuticals, Inc.604749AB7NOTE 4.000% 5/0–$49.0M1.3%–––
Palo Alto Networks Inc697435AF2NOTE 0.375% 6/0–$48.3M1.3%–––
NEANuveen AMT-Free Quality Municipal Income FundCOM4,004,020$47.9M1.3%+200,000+5.3%AddedHistory
Chefs Whse Inc163086AE1NOTE 2.375%12/1–$46.8M1.3%–––
IAUiShares Gold TrustETF929,500$46.2M1.3%00.0%UnchangedHistory
SHIFT4 PMTS Inc82452JAB5NOTE 12/1–$44.6M1.2%–––
NCL Corp Ltd62886HBD2NOTE 1.125% 2/1–$43.9M1.2%–––
Amphastar Pharmaceuticals IN03209RAB9NOTE 2.000% 3/1–$43.4M1.2%–New–
Seagate HDD Cayman81180WBL4NOTE 3.500% 6/0–$43.4M1.2%–New–
Cable One, Inc.12685JAG0NOTE 1.125% 3/1–$43.2M1.2%–––
Advanced Energy Inds007973AE0NOTE 2.500% 9/1–$42.4M1.2%–New–
DHRDanaher CorpStock150,217$41.8M1.1%00.0%UnchangedHistory
NZFNuveen Municipal Credit Income FundCOM SH BEN INT3,088,897$40.5M1.1%+109,171+3.7%AddedHistory
Dexcom Inc252131AK3NOTE 0.250%11/1–$39.4M1.1%–––
Akamai Technologies Inc00971TAL5NOTE 0.375% 9/0–$39.3M1.1%–––
Liberty Media Corp531229AQ5NOTE 2.250% 8/1–$39.1M1.1%–––
Bank of Amer Corp0605056827.25%CNV PFD L30,476$38.9M1.1%+21+0.1%Added–
Tyler Tex Indpt SCH Dist902252AB1NOTE 0.250% 3/1–$38.2M1.0%–––
Etsy Inc29786AAJ5NOTE 0.125%10/0–$37.7M1.0%–––
Northern Oil & Gas, Inc.665531AJ8NOTE 3.625% 4/1–$37.7M1.0%–––
Enphase Energy, Inc.29355AAH0NOTE 3/0–$37.1M1.0%–––
WFC.PLWells Fargo & CompanyPERP PFD CNV A28,400$36.4M1.0%−91−0.3%ReducedHistory
Centennial Resource Dev Inc15136AAA0NOTE 3.250% 4/0–$36.0M1.0%–––
Envestnet, Inc.29404KAG1NOTE 2.625%12/0–$35.3M1.0%–––
Datadog, Inc.23804LAB9NOTE 0.125% 6/1–$33.4M0.9%–––
NVGNuveen AMT-Free Municipal Credit Income FundCEF2,465,242$33.0M0.9%+186,407+8.2%AddedHistory
TALOTalos Energy Inc.COM3,132,176$32.4M0.9%−10,797−0.3%ReducedHistory
Ionis Pharmaceuticals Inc462222AF7NOTE 1.750% 6/1–$32.0M0.9%–New–
Liberty Media Corp531229AP7NOTE 3.750% 3/1–$30.9M0.8%–––
Oil STS Intl Inc678026AK1NOTE 4.750% 4/0–$30.5M0.8%–––
Zscaler, Inc.98980GAB8NOTE 0.125% 7/0–$30.4M0.8%–––
BTTBlackRock Municipal 2030 Target Term TrustCOM SHS BEN IN1,401,701$30.3M0.8%00.0%UnchangedHistory
GPORGulfport Energy CorpCOMMON SHARES198,685$30.1M0.8%−76,159−27.7%ReducedHistory
Burlington Stores, Inc.122017AD8NOTE 1.250%12/1–$29.1M0.8%–New–
Royal Caribbean Group780153BQ4NOTE 6.000% 8/1–$28.0M0.8%–––
NADNuveen Quality Municipal Income FundCOM2,238,289$27.7M0.8%+53,077+2.4%AddedHistory
Envista Holdings Corp29415FAD6NOTE 1.750% 8/1–$26.9M0.7%–New–
NACNuveen California Quality Municipal Income FundCOM2,225,404$26.5M0.7%+100,500+4.7%AddedHistory
Cheesecake Factory Inc163072AA9NOTE 0.375% 6/1–$25.3M0.7%–––
Haemonetics Corp Mass405024AB6NOTE 3/0–$25.2M0.7%–––
Summit Hotel Pptys Inc866082AA8NOTE 1.500% 2/1–$25.2M0.7%–––
MHDBlackRock Muniholdings Fund, Inc.COM1,921,470$24.3M0.7%+126,040+7.0%AddedHistory
Euronet Worldwide, Inc.298736AL3NOTE 0.750% 3/1–$24.0M0.7%–––
Dropbox, Inc.26210CAD6NOTE 3/0–$23.9M0.7%–––
Cable One, Inc.12685JAE5NOTE 3/1–$23.3M0.6%–––
Teladoc Health, Inc.87918AAF2NOTE 1.250% 6/0–$22.2M0.6%–––
MongoDB, Inc.60937PAD8NOTE 0.250% 1/1–$21.2M0.6%–––
Greenbrier Cos Inc393657AM3NOTE 2.875% 4/1–$21.1M0.6%–––
Chart Inds Inc16115Q4076.75DP CNV PFD B409,124$20.6M0.6%−1,536−0.4%Reduced–
Impinj Inc453204AD1NOTE 1.125% 5/1–$20.0M0.5%–––
BridgeBio Pharma, Inc.10806XAD4NOTE 2.250% 2/0–$19.2M0.5%–––
HPE.PCHewlett Packard Enterprise Co7.625 MAND CONV312,979$19.0M0.5%+312,979NewHistory
Alnylam Pharmaceuticals, Inc.02043QAB3NOTE 1.000% 9/1–$17.4M0.5%–––
Forum Energy Technologies IN34984VAC4NOTE 9.000% 8/0–$17.4M0.5%–––
Rivian Automotive, Inc.76954AAB9NOTE 4.625% 3/1–$17.2M0.5%–––
Workiva Inc98139AAD7NOTE 1.250% 8/1–$16.2M0.4%–New–
Array Technologies, Inc.04271TAB6NOTE 1.000%12/0–$16.0M0.4%–––
MUJBlackRock Muniholdings New Jersey Quality Fund, Inc.COM1,260,319$15.3M0.4%00.0%UnchangedHistory
American Airls Group Inc02376RAF9NOTE 6.500% 7/0–$14.6M0.4%–––
FETForum Energy Technologies, Inc.COM937,818$14.5M0.4%−4,222−0.4%ReducedHistory
MHNBlackRock Muniholdings New York Quality Fund, Inc.COM1,195,776$13.3M0.4%+80,000+7.2%AddedHistory
Okta, Inc.679295AD7NOTE 0.125% 9/0–$13.2M0.4%–––
MUIBlackRock Municipal Credit Alpha Portfolio, Inc.COM979,906$12.3M0.3%+200,378+25.7%AddedHistory
Rapid7, Inc.753422AH7NOTE 1.250% 3/1–$12.2M0.3%–New–
MVFBlackRock Munivest Fund, Inc.COM1,589,746$12.1M0.3%−70,748−4.3%ReducedHistory
VODVodafone Group Public Ltd CoADR1,166,022$11.7M0.3%00.0%UnchangedHistory
Pebblebrook Hotel Tr70509VAA8NOTE 1.750%12/1–$11.2M0.3%–––
MQTBlackRock Muniyield Quality Fund II, Inc.COM992,093$10.7M0.3%00.0%UnchangedHistory
MYNBlackRock Muniyield New York Quality Fund, Inc.COM937,524$10.1M0.3%+107,478+12.9%AddedHistory
GLDSPDR Gold TrustETF37,836$9.20M0.3%−10,000−20.9%ReducedHistory
NRKNuveen New York Amt-Free Quality Municipal Income FundCOM797,635$8.93M0.2%00.0%UnchangedHistory
Nuvasive Inc670704AJ4NOTE 0.375% 3/1–$8.88M0.2%–––
Q2 Hldgs Inc74736LAD1NOTE 0.750% 6/0–$8.47M0.2%–––
Ziff Davis, Inc.48123VAE2NOTE 1.750%11/0–$8.46M0.2%–––
Bentley Sys Inc08265TAB5NOTE 0.125% 1/1–$8.06M0.2%–––
MIYBlackRock Muniyield Michigan Quality Fund, Inc.COM664,819$7.98M0.2%00.0%UnchangedHistory
Solaredge Technologies, Inc.83417MAD6NOTE 9/1–$7.77M0.2%–––

Sold out since Q2 2024 (5)

Positions held at the end of Q2 2024 that are gone from this filing.

Positions of Mackay Shields LLC sold out since Q2 2024
SecurityClassShares in Q2 2024Value in Q2 2024% of portfolio in Q2 2024History
Etsy Inc29786AAN6NOTE 0.250% 6/1–$42.5M1.3%–
Integra Lifesciences Hldgs C457985AM1NOTE 0.500% 8/1–$5.77M0.2%–
Wolfspeed, Inc.977852AB8NOTE 0.250% 2/1–$4.34M0.1%–
DISH Network CORP25470MAB5NOTE 3.375% 8/1–$3.68M0.1%–
Everbridge, Inc.29978AAC8NOTE 0.125%12/1–$16.9K<0.1%–