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Mackay Shields LLC

SEC CIK
0000061227
Latest filing
Jul 28, 2026

Holdings in Q1 2023

Holdings as of Mar 31, 2023, filed Apr 27, 2023. Long positions only; changes compare share counts with Q4 2022.

Institution overview
Positions
154
−87 vs. Q4 2022
Portfolio value
$3.64B
−$277.4M (−7.1%) vs. Q4 2022
Filed
Apr 27, 2023
SEC
Holdings of Mackay Shields LLC in Q1 2023
SecurityClassSharesValue% of portfolioShare changeActionHistory
GPORGulfport Energy CorpCOMMON SHARES2,102,790$168.2M4.6%−42,698−2.0%ReducedHistory
Danaher Corp2358514095% CONV PFD B85,206$108.6M3.0%+40.0%Added–
NICE Ltd.653656AB4NOTE 9/1–$106.8M2.9%–––
Microchip Technology Inc595017AU8NOTE 0.125%11/1–$89.2M2.4%–––
EQT Corp26884LAK5NOTE 1.750% 5/0–$81.2M2.2%–––
Biomarin Pharmaceutical Inc09061GAK7NOTE 1.250% 5/1–$80.1M2.2%–––
DISH Network CORP25470MAD1NOTE 2.375% 3/1–$78.9M2.2%–––
Pioneer Nat Res Co723787AP2NOTE 0.250% 5/1–$75.2M2.1%–––
Southwest Airls Co844741BG2NOTE 1.250% 5/0–$74.6M2.0%–––
Helix Energy Solutions Grp I42330PAK3NOTE 6.750% 2/1–$73.3M2.0%–––
Ford MTR Co Del345370CZ1NOTE 3/1–$71.4M2.0%–––
NRG Energy, Inc.629377CG5DBCV 2.750% 6/0–$65.2M1.8%–––
Palo Alto Networks Inc697435AD7NOTE 0.750% 7/0–$63.4M1.7%–––
Vail Resorts Inc91879QAN9NOTE 1/0–$62.8M1.7%–––
Oil STS Intl Inc678026AK1NOTE 4.750% 4/0–$61.8M1.7%–––
PG&E Corp69331C140UNIT 99/99/9999407,511$57.9M1.6%−1,517−0.4%Reduced–
Centennial Resource Dev Inc15136AAA0NOTE 3.250% 4/0–$56.4M1.5%–––
Burlington Stores, Inc.122017AB2NOTE 2.250% 4/1–$55.8M1.5%–––
Lumentum Hldgs Inc55024UAD1NOTE 0.500%12/1–$54.5M1.5%–––
Palo Alto Networks Inc697435AF2NOTE 0.375% 6/0–$53.8M1.5%–––
NICENICE Ltd.SPONSORED ADR234,388$53.6M1.5%−35,025−13.0%ReducedHistory
TALOTalos Energy Inc.COM3,282,811$48.7M1.3%−31,473−0.9%ReducedHistory
Exact Sciences Corp30063PAC9NOTE 0.375% 3/0–$46.8M1.3%–––
Dexcom Inc252131AK3NOTE 0.250%11/1–$45.7M1.3%–––
Etsy Inc29786AAN6NOTE 0.250% 6/1–$45.2M1.2%–––
Teladoc Health, Inc.87918AAF2NOTE 1.250% 6/0–$45.2M1.2%–––
SHIFT4 PMTS Inc82452JAB5NOTE 12/1–$44.3M1.2%–––
Zillow Group, Inc.98954MAH4NOTE 2.750% 5/1–$44.2M1.2%–––
Square Inc852234AF0NOTE 0.125% 3/0–$44.2M1.2%–––
Enphase Energy, Inc.29355AAH0NOTE 3/0–$42.7M1.2%–––
MGP Ingredients Inc55303JAB2NOTE 1.875%11/1–$41.1M1.1%–––
Patk703343AG812/01/2028–$40.5M1.1%–New–
KKR and Co Inc 6 McOnv PFD C48251W401CONVERTIBLE PREFERRED STOCK614,934$39.1M1.1%−2,655−0.4%Reduced–
Illumina, Inc.452327AK5NOTE 8/1–$38.6M1.1%–––
Silicon Laboratories Inc.826919AD4NOTE 0.625% 6/1–$37.5M1.0%–––
Bank of Amer Corp0605056827.25%CNV PFD L32,088$37.4M1.0%−931−2.8%Reduced–
AES Corp00130H204UNIT 99/99/9999388,822$35.0M1.0%−557−0.1%Reduced–
Forum Energy Technologies IN34984VAC4NOTE 9.000% 8/0–$34.9M1.0%–––
IAUiShares Gold TrustETF929,500$34.7M1.0%00.0%UnchangedHistory
Chart Inds Inc16115QAE0NOTE 1.000%11/1–$34.5M0.9%–New–
WFC.PLWells Fargo & CompanyPERP PFD CNV A29,334$34.0M0.9%−1,219−4.0%ReducedHistory
Booking Holdings Inc.09857LAN8NOTE 0.750% 5/0–$33.9M0.9%–––
Akamai Technologies Inc00971TAL5NOTE 0.375% 9/0–$33.8M0.9%–––
Nextera Energy Inc65339F713UNIT 09/01/2025720,776$33.4M0.9%+712,236+8,340.0%Added–
Viavi Solutions Inc.925550AB1NOTE 1.000% 3/0–$33.3M0.9%–––
DISH Network CORP25470MAB5NOTE 3.375% 8/1–$31.9M0.9%–––
BTTBlackRock Municipal 2030 Target Term TrustCOM SHS BEN IN1,401,701$30.4M0.8%00.0%UnchangedHistory
FETForum Energy Technologies, Inc.COM1,116,196$28.4M0.8%+1,116,196NewHistory
Everbridge, Inc.29978AAC8NOTE 0.125%12/1–$27.7M0.8%–––
Nuvasive Inc670704AJ4NOTE 0.375% 3/1–$26.6M0.7%–––
Chart Inds Inc16115Q4076.75DP CNV PFD B493,899$26.4M0.7%+493,899New–
Integra Lifesciences Hldgs C457985AM1NOTE 0.500% 8/1–$25.9M0.7%–––
Uber Technologies, Inc90353TAJ9NOTE 12/1–$25.8M0.7%–––
Splunk Inc848637AD6NOTE 1.125% 9/1–$24.8M0.7%–––
Wolfspeed, Inc.977852AB8NOTE 0.250% 2/1–$24.4M0.7%–New–
Euronet Worldwide, Inc.298736AL3NOTE 0.750% 3/1–$24.1M0.7%–––
Cheesecake Factory Inc163072AA9NOTE 0.375% 6/1–$24.0M0.7%–––
Ares Capital Corp04010LAW3NOTE 4.625% 3/0–$23.6M0.6%–––
Summit Hotel Pptys Inc866082AA8NOTE 1.500% 2/1–$23.3M0.6%–––
Datadog, Inc.23804LAB9NOTE 0.125% 6/1–$22.4M0.6%–––
Solaredge Technologies, Inc.83417MAD6NOTE 9/1–$22.2M0.6%–––
Ionis Pharmaceuticals Inc462222AD2NOTE 4/0–$21.9M0.6%–––
Pacira BioSciences, Inc.695127AF7NOTE 0.750% 8/0–$21.9M0.6%–––
Dropbox, Inc.26210CAD6NOTE 3/0–$21.4M0.6%–––
MongoDB, Inc.60937PAD8NOTE 0.250% 1/1–$20.0M0.5%–––
Zscaler, Inc.98980GAB8NOTE 0.125% 7/0–$19.7M0.5%–––
Array Technologies, Inc.04271TAB6NOTE 1.000%12/0–$18.5M0.5%–––
Snap Inc83304AAH9NOTE 0.125% 3/0–$18.5M0.5%–New–
CHRDChord Energy CorpCOM NEW136,562$18.4M0.5%−1,500−1.1%ReducedHistory
Zynga Inc98986TAD0NOTE 12/1–$18.2M0.5%–––
BDX 6 06/01/23 Pfd075887406CONVERTIBLE PREFERRED STOCK351,857$17.6M0.5%+260+0.1%Added–
Haemonetics Corp Mass405024AB6NOTE 3/0–$16.9M0.5%–––
American Airls Group Inc02376RAF9NOTE 6.500% 7/0–$16.6M0.5%–––
Greenbrier Cos Inc393657AM3NOTE 2.875% 4/1–$16.5M0.5%–––
Snap Inc83304AAF3NOTE 5/0–$15.9M0.4%–––
Chegg, Inc163092AF6NOTE 9/0–$15.6M0.4%–––
NEANuveen AMT-Free Quality Municipal Income FundCOM1,330,320$14.8M0.4%−377,263−22.1%ReducedHistory
Infinera Corp45667GAE3NOTE 2.500% 3/0–$14.8M0.4%–––
Impinj Inc453204AD1NOTE 1.125% 5/1–$14.3M0.4%–––
MHNBlackRock Muniholdings New York Quality Fund, Inc.COM1,285,954$13.7M0.4%−11,080−0.9%ReducedHistory
Okta, Inc.679295AD7NOTE 0.125% 9/0–$12.9M0.4%–––
MQTBlackRock Muniyield Quality Fund II, Inc.COM1,128,935$11.7M0.3%−17,320−1.5%ReducedHistory
Pebblebrook Hotel Tr70509VAA8NOTE 1.750%12/1–$11.6M0.3%–––
MUJBlackRock Muniholdings New Jersey Quality Fund, Inc.COM1,003,043$11.5M0.3%00.0%UnchangedHistory
KOSKosmos Energy Ltd.COM1,503,656$11.2M0.3%+236,310+18.6%AddedHistory
Biomarin Pharmaceutical Inc09061GAH4NOTE 0.599% 8/0–$10.7M0.3%–––
BridgeBio Pharma, Inc.10806XAB8NOTE 2.500% 3/1–$10.7M0.3%–––
Digitalocean Hldgs Inc25402DAB8NOTE 12/0–$10.4M0.3%–––
Guardant Health, Inc.40131MAB5NOTE 11/1–$10.4M0.3%–––
GLDSPDR Gold TrustETF55,336$10.1M0.3%−15,000−21.3%ReducedHistory
Cable One, Inc.12685JAE5NOTE 3/1–$9.73M0.3%–––
Bill Com Hldgs Inc090043AB6NOTE 12/0–$9.64M0.3%–––
MYNBlackRock Muniyield New York Quality Fund, Inc.COM947,433$9.62M0.3%−25,222−2.6%ReducedHistory
Five9, Inc.338307AD3NOTE 0.500% 6/0–$9.21M0.3%–––
Parsons Corp70202LAB8NOTE 0.250% 8/1–$8.96M0.2%–––
MIYBlackRock Muniyield Michigan Quality Fund, Inc.COM792,834$8.87M0.2%−200,000−20.1%ReducedHistory
NCL Corp Ltd62886HAX9NOTE 5.375% 8/0–$8.68M0.2%–––
InterDigital, Inc.45867GAB7NOTE 2.000% 6/0–$7.99M0.2%–––
MHDBlackRock Muniholdings Fund, Inc.COM638,616$7.70M0.2%00.0%UnchangedHistory
JetBlue Airways Corp477143AP6NOTE 0.500% 4/0–$7.65M0.2%–––

Sold out since Q4 2022 (96)

Positions held at the end of Q4 2022 that are gone from this filing.

Positions of Mackay Shields LLC sold out since Q4 2022
SecurityClassShares in Q4 2022Value in Q4 2022% of portfolio in Q4 2022History
Wellpoint Inc94973VBG1NOTE 2.750%10/1–$109.7M2.8%–
Splunk Inc848637AC8NOTE 0.500% 9/1–$34.8M0.9%–
DISH Network CORP25470MAF6NOTE 12/1–$27.2M0.7%–
On Semiconductor Corp682189AP0NOTE 1.625%10/1–$26.9M0.7%–
Block, Inc.852234AJ2NOTE 5/0–$25.3M0.6%–
Coupa Software Inc22266LAF3NOTE 0.375% 6/1–$22.8M0.6%–
BACBank of America CorpStock666,299$22.1M0.6%History
Block, Inc.852234AK9NOTE 0.250%11/0–$20.1M0.5%–
Live Nation Entertainment IN538034AQ2NOTE 2.500% 3/1–$19.0M0.5%–
Rambus Inc750917AG1NOTE 1.375% 2/0–$16.9M0.4%–
Nextera Energy Inc65339F770UNIT 99/99/9999254,846$12.9M0.3%–
PDCEPDC Energy, Inc.COM153,669$9.75M0.2%History
Patrick Inds Inc703343AB9DBCV 1.000% 2/0–$5.99M0.2%–
State Street SPDR Bloomberg Convertible Securities ETF78464A359ETF70,790$4.55M0.1%–
SHIFT4 PMTS Inc82452JAD1NOTE 0.500% 8/0–$2.37M0.1%–
NADNuveen Quality Municipal Income FundCOM188,362$2.22M0.1%History
CRCCalifornia Resources CorpCOM STOCK33,073$1.44M<0.1%History
Oil STS Intl Inc678026AH8NOTE 1.500% 2/1–$557.9K<0.1%–
Insulet Corp45784PAK7NOTE 0.375% 9/0–$537.0K<0.1%–
Jazz Investments I Ltd472145AF8NOTE 2.000% 6/1–$470.3K<0.1%–
CNX Res Corp12653CAG3NOTE 2.250% 5/0–$401.6K<0.1%–
Dick's Sporting Goods, Inc.253393AD4NOTE 3.250% 4/1–$400.4K<0.1%–
Unity Software Inc.91332UAB7NOTE 11/1–$376.8K<0.1%–
Airbnb, Inc.009066AB7NOTE 3/1–$345.1K<0.1%–
Tyler Tex Indpt SCH Dist902252AB1NOTE 0.250% 3/1–$317.6K<0.1%–
Cyberark Software Ltd23248VAB1NOTE 11/1–$296.6K<0.1%–
Sarepta Therapeutics, Inc.803607AC4DEBT 1.250% 9/1–$289.4K<0.1%–
Alteryx, Inc.02156BAD5NOTE 0.500% 8/0–$284.9K<0.1%–
VVRInvesco Senior Income TrustCOM73,504$281.5K<0.1%History
Invesco Exch Traded FD Tr II46138G805TAXABLE MUN BD10,580$272.0K<0.1%–
Sarepta Therapeutics, Inc.803607AB6DBCV 1.500%11/1–$252.5K<0.1%–
Envista Holdings Corp29415FAB0NOTE 2.375% 6/0–$222.3K<0.1%–
Affirm Hldgs Inc00827BAB2NOTE 11/1–$222.0K<0.1%–
Ceridian HCM Hldg Inc15677JAD0NOTE 0.250% 3/1–$220.4K<0.1%–
Verint Systems Inc92343XAC4NOTE 0.250% 4/1–$218.8K<0.1%–
Vishay Intertechnology Inc928298AP3NOTE 2.250% 6/1–$208.0K<0.1%–
Jamf Hldg Corp47074LAB1NOTE 0.125% 9/0–$207.0K<0.1%–
Cloudflare, Inc.18915MAC1NOTE 8/1–$205.0K<0.1%–
Peloton Interactive, Inc.70614WAB6NOTE 2/1–$194.2K<0.1%–
HubSpot Inc443573AD2NOTE 0.375% 6/0–$193.8K<0.1%–
Ironwood Pharmaceuticals Inc46333XAH1NOTE 1.500% 6/1–$190.6K<0.1%–
Confluent, Inc.20717MAB9NOTE 1/1–$190.0K<0.1%–
Rapid7, Inc.753422AF1NOTE 0.250% 3/1–$188.6K<0.1%–
MicroStrategy Inc594972AE1NOTE 2/1–$186.9K<0.1%–
Wayfair Inc.94419LAM3NOTE 0.625%10/0–$183.8K<0.1%–
Ionis Pharmaceuticals Inc462222AB6NOTE 0.125%12/1–$180.8K<0.1%–
INSMED Inc457669AA7NOTE 1.750% 1/1–$176.2K<0.1%–
American Eagle Outfitters IN02553EAB2NOTE 3.750% 4/1–$173.5K<0.1%–
Cracker Barrel Old Ctry Stor22410JAB2NOTE 0.625% 6/1–$171.8K<0.1%–
Lci Inds501812AB7NOTE 1.125% 5/1–$169.5K<0.1%–
Karyopharm Therapeutics Inc.48576UAA4NOTE 3.000%10/1–$167.7K<0.1%–
Teradyne, Inc880770AG7NOTE 1.250%12/1–$165.2K<0.1%–
Itron, Inc.465741AN6NOTE 3/1–$164.8K<0.1%–
Bentley Sys Inc08265TAD1NOTE 0.375% 7/0–$163.8K<0.1%–
Evolent Health, Inc.30050BAD3NOTE 1.500%10/1–$163.2K<0.1%–
Bill.com Holdings090043AD2CONV BOND–$159.1K<0.1%–
Pure Storage Inc74624MAB8NOTE 0.125% 4/1–$150.0K<0.1%–
Wayfair Inc.94419LAF8NOTE 1.000% 8/1–$145.7K<0.1%–
Liveperson Inc538146AD3NOTE 12/1–$143.6K<0.1%–
Bigcommerce Hldgs Inc08975PAB4NOTE 0.250%10/0–$143.0K<0.1%–
Realogy Grp LLC/Realogy Co75606DAP6NOTE 0.250% 6/1–$140.8K<0.1%–
NCL Corp Ltd62886HBD2NOTE 1.125% 2/1–$136.8K<0.1%–
Fti Consulting, Inc302941AP4NOTE 2.000% 8/1–$134.1K<0.1%–
NovoCure Ltd67011XAB9NOTE 11/0–$133.8K<0.1%–
Box Inc10316TAB0NOTE 1/1–$131.7K<0.1%–
Transocean Ltd.893830BJ7DEB 0.500% 1/3–$131.1K<0.1%–
Ironwood Pharmaceuticals Inc46333XAF5NOTE 0.750% 6/1–$129.4K<0.1%–
Insight Enterprises Inc45765UAB9NOTE 0.750% 2/1–$128.0K<0.1%–
Infinera Corp45667GAC7NOTE 2.125% 9/0–$127.6K<0.1%–
DraftKings Inc.26142RAB0NOTE 3/1–$125.7K<0.1%–
Livent Corp.53814LAB4NOTE 4.125% 7/1–$125.0K<0.1%–
Apellis Pharmaceuticals, Inc.03753UAB2NOTE 3.500% 9/1–$122.0K<0.1%–
New Relic, Inc.64829BAB6NOTE 0.500% 5/0–$117.7K<0.1%–
Repligen Corp759916AB5NOTE 0.375% 7/1–$117.4K<0.1%–
Penn Natl Gaming Inc707569AU3NOTE 2.750% 5/1–$116.8K<0.1%–
Lyft, Inc.55087PAB0NOTE 1.500% 5/1–$116.0K<0.1%–
Guidewire Software, Inc.40171VAA8NOTE 1.250% 3/1–$111.7K<0.1%–
United States STL Corp New912909AT5NOTE 5.000%11/0–$108.3K<0.1%–
Upwork, Inc91688FAB0NOTE 0.250% 8/1–$102.5K<0.1%–
Royal Caribbean Group780153BF8NOTE 2.875%11/1–$101.4K<0.1%–
Blackline, Inc.09239BAB5NOTE 0.125% 8/0–$100.2K<0.1%–
Invitae Corp46185LAB9NOTE 2.000% 9/0–$95.1K<0.1%–
Veeco Instrs Inc Del922417AD2CONVERTIBLE BOND–$94.7K<0.1%–
Bloomin' Brands, Inc.094235AB4NOTE 5.000% 5/0–$93.2K<0.1%–
Pennymac Corp70932AAD5NOTE 5.500%11/0–$89.8K<0.1%–
Beyond Meat, Inc.08862EAB5NOTE 3/1–$89.2K<0.1%–
Carnival Corp143658BE1NOTE 5.750% 4/0–$88.7K<0.1%–
Nanostring Technologies Inc63009RAD1NOTE 2.625% 5/0–$81.2K<0.1%–
Winnebago Inds Inc974637AB6NOTE 1.500% 4/0–$79.0K<0.1%–
Redwood Tr Inc758075AC9NOTE 4.750% 8/1–$78.8K<0.1%–
Q2 Hldgs Inc74736LAB5NOTE 0.750% 2/1–$68.6K<0.1%–
Air Transport Services Grp I00922RAB1NOTE 1.125%10/1–$67.7K<0.1%–
DocuSign, Inc.256163AB2NOTE 0.500% 9/1–$61.6K<0.1%–
Tabula Rasa HealthCare, Inc.873379AA9NOTE 1.750% 2/1–$58.6K<0.1%–
Marathon Digital Holdings IN565788AB2NOTE 1.000%12/0–$46.6K<0.1%–
8X8 Inc282914AB6NOTE 0.500% 2/0–$45.8K<0.1%–