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Livermore
Livermore
ZHEN

Calamos Advisors LLC

SEC CIK
0001316507
Latest filing
Jul 31, 2026

Holdings in Q1 2023

Holdings as of Mar 31, 2023, filed May 4, 2023. Long positions only; changes compare share counts with Q4 2022.

Institution overview
Positions
1,103
−99 vs. Q4 2022
Portfolio value
$19.9B
−$770.2M (−3.7%) vs. Q4 2022
Filed
May 4, 2023
SEC
Holdings of Calamos Advisors LLC in Q1 2023
SecurityClassSharesValue% of portfolioShare changeActionHistory
AAPLApple Inc.Stock5,000,966$824.7M4.1%−397,789−7.4%ReducedHistory
MSFTMicrosoft CorpStock2,712,720$782.1M3.9%−313,289−10.4%ReducedHistory
AMZNAmazon Com IncStock3,475,781$359.0M1.8%−270,522−7.2%ReducedHistory
GOOGLAlphabet Inc.Stock2,930,459$304.0M1.5%−172,350−5.6%ReducedHistory
NVDANVIDIA CorpStock1,007,136$279.8M1.4%−30,526−2.9%ReducedHistory
Palo Alto Networks Inc697435AD7NOTE 0.750% 7/0–$258.2M1.3%–––
Palo Alto Networks Inc697435AF2NOTE 0.375% 6/0–$223.9M1.1%–––
Pioneer Nat Res Co723787AP2NOTE 0.250% 5/1–$191.5M1.0%–––
VVisa Inc.Stock843,606$190.2M1.0%−56,615−6.3%ReducedHistory
UNHUnitedHealth Group IncStock387,376$183.1M0.9%−41,227−9.6%ReducedHistory
Tesla, Inc.88160RAG6NOTE 2.000% 5/1–$175.4M0.9%–––
SPYSPDR S&P 500 ETF TrustETF384,213$157.3M0.8%+257,057+202.2%AddedHistory
METAMeta Platforms, Inc.Stock680,210$144.2M0.7%−63,416−8.5%ReducedHistory
LLYEli Lilly & CoStock414,962$142.5M0.7%−33,993−7.6%ReducedHistory
GOOGAlphabet Inc.Stock1,369,366$142.4M0.7%−146,381−9.7%ReducedHistory
Airbnb, Inc.009066AB7NOTE 3/1–$128.8M0.6%–––
On Semiconductor Corp682189AS4NOTE 5/0–$124.7M0.6%–––
MongoDB, Inc.60937PAD8NOTE 0.250% 1/1–$117.2M0.6%–––
CVXChevron CorpStock710,479$115.9M0.6%−16,495−2.3%ReducedHistory
AVGOBroadcom Inc.Stock171,655$110.1M0.6%−14,846−8.0%ReducedHistory
Ford MTR Co Del345370CZ1NOTE 3/1–$109.6M0.5%–––
JNJJohnson & JohnsonStock696,297$107.9M0.5%−54,747−7.3%ReducedHistory
LINLinde PLCStock303,616$107.9M0.5%−47,041−13.4%ReducedHistory
Unity Software Inc.91332UAB7NOTE 11/1–$107.5M0.5%–––
JPMJPMorgan Chase & CoStock824,209$107.4M0.5%−80,344−8.9%ReducedHistory
MAMastercard IncStock284,477$103.4M0.5%−22,480−7.3%ReducedHistory
World Wrestling Entmt Inc98156QAB4NOTE 3.375%12/1–$103.1M0.5%–––
Dick's Sporting Goods, Inc.253393AD4NOTE 3.250% 4/1–$99.4M0.5%–––
Sea Ltd81141RAG5NOTE 0.250% 9/1–$98.1M0.5%–––
Aptiv PLCG6095L1175.5% CNV PFD A794,260$97.5M0.5%−14,351−1.8%Reduced–
RTXRTX CorpStock992,414$97.2M0.5%−78,757−7.4%ReducedHistory
XOMExxonMobil Holdings CorpCOM854,058$93.7M0.5%−61,242−6.7%ReducedHistory
Akamai Technologies Inc00971TAL5NOTE 0.375% 9/0–$93.4M0.5%–––
Dexcom Inc252131AK3NOTE 0.250%11/1–$90.4M0.5%–––
BRK.BBerkshire Hathaway IncStock291,723$90.1M0.5%−36,469−11.1%ReducedHistory
TSLATesla, Inc.Stock430,345$89.3M0.4%−71,703−14.3%ReducedHistory
BACBank of America CorpStock3,117,031$89.1M0.4%−460,050−12.9%ReducedHistory
PGProcter & Gamble CoStock585,552$87.1M0.4%−47,171−7.5%ReducedHistory
WMTWalmart Inc.Stock587,693$86.7M0.4%−46,379−7.3%ReducedHistory
DraftKings Inc.26142RAB0NOTE 3/1–$85.9M0.4%–––
American Elec PWR Co Inc02557T307UNIT 08/15/20251,698,391$85.5M0.4%−43,953−2.5%Reduced–
SHIFT4 PMTS Inc82452JAB5NOTE 12/1–$85.5M0.4%–––
Dexcom Inc252131AH0NOTE 0.750%12/0–$84.9M0.4%–––
TMOThermo Fisher Scientific Inc.Stock147,317$84.9M0.4%−11,999−7.5%ReducedHistory
Cyberark Software Ltd23248VAB1NOTE 11/1–$84.4M0.4%–––
Illumina, Inc.452327AK5NOTE 8/1–$83.6M0.4%–––
Okta, Inc.679295AD7NOTE 0.125% 9/0–$81.9M0.4%–––
Snap Inc83304AAF3NOTE 5/0–$81.3M0.4%–––
HDHome Depot, Inc.Stock271,069$80.0M0.4%−29,718−9.9%ReducedHistory
KOCoca Cola CoStock1,263,862$78.4M0.4%−131,597−9.4%ReducedHistory
MRKMerck & Co., Inc.Stock713,245$75.9M0.4%−60,622−7.8%ReducedHistory
HONHoneywell International IncCOM393,718$75.2M0.4%−13,467−3.3%ReducedHistory
ABBVAbbVie Inc.Stock472,002$75.2M0.4%−43,633−8.5%ReducedHistory
Jazz Investments I Ltd472145AF8NOTE 2.000% 6/1–$75.0M0.4%–––
NKENIKE, Inc.Stock609,991$74.8M0.4%−35,274−5.5%ReducedHistory
CSXCSX CorpStock2,456,038$73.5M0.4%−164,920−6.3%ReducedHistory
Digitalocean Hldgs Inc25402DAB8NOTE 12/0–$71.7M0.4%–––
WFCWells Fargo & CompanyStock1,914,684$71.6M0.4%−357,636−15.7%ReducedHistory
Nextera Energy Inc65339F739UNIT 99/99/99991,443,870$70.5M0.4%−4,968−0.3%Reduced–
DHRDanaher CorpStock275,741$69.5M0.3%−81,844−22.9%ReducedHistory
MSMorgan StanleyStock765,912$67.2M0.3%−79,800−9.4%ReducedHistory
MPCMarathon Petroleum CorpStock497,998$67.1M0.3%−65,977−11.7%ReducedHistory
CSCOCisco Systems, Inc.Stock1,282,506$67.0M0.3%−127,997−9.1%ReducedHistory
Square Inc852234AD5NOTE 0.500% 5/1–$66.1M0.3%–––
Bill Com Hldgs Inc090043AB6NOTE 12/0–$65.9M0.3%–––
Microchip Technology Inc595017AU8NOTE 0.125%11/1–$65.8M0.3%–––
Confluent, Inc.20717MAB9NOTE 1/1–$65.7M0.3%–––
Uber Technologies, Inc90353TAJ9NOTE 12/1–$65.6M0.3%–––
ORCLOracle CorpStock705,009$65.5M0.3%+16,254+2.4%AddedHistory
Nextera Energy Inc65339F713UNIT 09/01/20251,385,210$64.2M0.3%−98,205−6.6%Reduced–
BMYBristol Myers Squibb CoStock926,139$64.2M0.3%−100,851−9.8%ReducedHistory
Insulet Corp45784PAK7NOTE 0.375% 9/0–$64.1M0.3%–––
Datadog, Inc.23804LAB9NOTE 0.125% 6/1–$63.6M0.3%–––
Spotify USA Inc84921RAB6NOTE 3/1–$62.9M0.3%–––
AES Corp00130H204UNIT 99/99/9999693,151$62.0M0.3%−1610.0%Reduced–
Akamai Technologies Inc00971TAJ0NOTE 0.125% 5/0–$61.1M0.3%–––
MCDMcDonalds CorpStock217,567$60.8M0.3%−19,114−8.1%ReducedHistory
PEPPepsiCo IncStock329,981$60.2M0.3%−26,680−7.5%ReducedHistory
DISWalt Disney CoStock593,284$59.4M0.3%−50,680−7.9%ReducedHistory
MIDDLEBY Corp596278AB7NOTE 1.000% 9/0–$58.8M0.3%–––
ACNAccenture plcStock202,061$57.8M0.3%−31,173−13.4%ReducedHistory
LOWLowes Companies IncStock285,638$57.1M0.3%−17,136−5.7%ReducedHistory
CRMSalesforce, Inc.Stock284,459$56.8M0.3%−51,908−15.4%ReducedHistory
INTUIntuit Inc.Stock127,378$56.8M0.3%+14,772+13.1%AddedHistory
Coinbase Global, Inc.19260QAB3NOTE 0.500% 6/0–$56.5M0.3%–––
PFEPfizer IncStock1,382,680$56.4M0.3%−132,472−8.7%ReducedHistory
John Bean Technologies Corp477839AB0NOTE 0.250% 5/1–$56.2M0.3%–––
PMPhilip Morris International Inc.Stock567,841$55.2M0.3%−47,509−7.7%ReducedHistory
GSGoldman Sachs Group IncStock168,567$55.1M0.3%−26,956−13.8%ReducedHistory
Nice Sys Inc65366HAB9NOTE 1.250% 1/1–$54.8M0.3%–––
COSTCostco Wholesale CorpStock109,719$54.5M0.3%−8,094−6.9%ReducedHistory
UNPUnion Pacific CorpStock269,514$54.2M0.3%−50,144−15.7%ReducedHistory
Cloudflare, Inc.18915MAC1NOTE 8/1–$54.2M0.3%–––
BSXBoston Scientific CorpStock1,080,021$54.0M0.3%−128,640−10.6%ReducedHistory
AXPAmerican Express CoStock323,812$53.4M0.3%−36,557−10.1%ReducedHistory
AMDAdvanced Micro Devices IncStock540,931$53.0M0.3%−214,221−28.4%ReducedHistory
NOWServiceNow, Inc.Stock112,653$52.4M0.3%+3,901+3.6%AddedHistory
MRSHMarsh & McLennan Companies, Inc.Stock310,473$51.7M0.3%−31,074−9.1%ReducedHistory
Vail Resorts Inc91879QAN9NOTE 1/0–$51.4M0.3%–––
Teradyne, Inc880770AG7NOTE 1.250%12/1–$51.1M0.3%–––

Options (27)

Puts and calls in the same filing. Amounts are the market value of the underlying shares, which is what 13F reports.

Option positions of Calamos Advisors LLC in Q1 2023
SecurityClassPutsCalls
SPYSPDR S&P 500 ETF TrustETF$176.3M–
Invesco QQQ Trust Series I46090E103ETF$123.8M–
iShares Tr464287234MSCI EMG MKT ETF–$52.7M
iShares MSCI Eafe ETF464287465ETF$30.9M–
AALAmerican Airlines Group Inc.Stock–$21.8M
SCHWSchwab Charles CorpStock$5.41M$9.37M
DISHDISH Network CORPCL A$14.4M–
SNOWSnowflake Inc.Stock–$13.2M
FORGForgeRock, Inc.CL A$11.4M–
BABAAlibaba Group Holding LtdADR–$9.28M
TSMTaiwan Semiconductor Manufacturing Co LtdADR–$7.82M
iShares Inc46434G772MSCI TAIWAN ETF–$7.41M
GSGoldman Sachs Group IncStock–$7.21M
BYNDBeyond Meat, Inc.COM$6.77M–
FSLRFirst Solar, Inc.Stock–$6.29M
AMDAdvanced Micro Devices IncStock–$6.20M
UALUnited Airlines Holdings, Inc.COM–$5.09M
BIDUBaidu, Inc.ADR–$4.46M
WFCWells Fargo & CompanyStock–$3.34M
iShares Inc464286772MSCI STH KOR ETF–$2.82M
TATravelCenters of America Inc.COM NEW–$2.28M
RIORio Tinto PLCADR–$2.19M
NVDANVIDIA CorpStock–$1.02M
TYLTyler Technologies IncCOM$322.4K–
POOLPool CorpCOM$302.3K–
FDXFedEx CorpStock$294.4K–
CRMSalesforce, Inc.Stock$265.2K–

Sold out since Q4 2022 (193)

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

The largest 100 of 193 by value last quarter.

Positions of Calamos Advisors LLC sold out since Q4 2022
SecurityClassShares in Q4 2022Value in Q4 2022% of portfolio in Q4 2022History
Vanguard S&P 500 ETF922908363ETF1,340,747$471.1M2.3%–
Sarepta Therapeutics, Inc.803607AC4DEBT 1.250% 9/1–$65.6M0.3%–
Coupa Software Inc22266LAF3NOTE 0.375% 6/1–$60.8M0.3%–
Coupa Software Inc22266LAC0NOTE 0.125% 6/1–$52.8M0.3%–
1Life Healthcare Inc68269GAB3NOTE 3.000% 6/1–$43.6M0.2%–
iShares Tr464287184CHINA LG-CAP ETF1,367,380$38.7M0.2%–
Liberty Media Corp Del531229AB8NOTE 1.375%10/1–$36.9M0.2%–
Bilibili Inc.090040AF3NOTE 0.500%12/0–$23.5M0.1%–
Atlas Air Worldwide Hldgs IN049164BJ4NOTE 1.875% 6/0–$23.4M0.1%–
Nextera Energy Inc65339F770UNIT 99/99/9999438,340$22.2M0.1%–
Tevogen Inc.G8028L107CLASS A ORD2,000,000$20.7M0.1%–
Sarepta Therapeutics, Inc.803607AB6DBCV 1.500%11/1–$18.9M0.1%–
LHCGLHC Group, IncCOM98,161$15.9M0.1%History
ONYXOnyx Acquisition Co. ISHS CL A1,500,000$15.4M0.1%History
STORStore Capital LLCCOM444,082$14.2M0.1%History
Mountain & Co I Acquisitn CoG6301J104CLASS A ORD1,350,700$14.0M0.1%–
Games & Esports Exprnc Acq CG3731J119CLASS A ORD SHS1,250,000$12.9M0.1%–
IQMDIntelligent Medicine Acquisition Corp.CLASS A COM1,250,000$12.8M0.1%History
SGFYSignify Health, Inc.CL A COM442,574$12.7M0.1%History
iQIYI, Inc.46267XAD0NOTE 2.000% 4/0–$11.3M0.1%–
Genesis GRWT Tech Acqustn CoG3R23D102CLASS A ORD SHS1,000,000$10.3M<0.1%–
ALORALSP Orchid Acquisition Corp ICLASS A ORD1,000,000$10.3M<0.1%History
APXIAPx Acquisition Corp. ICLASS A ORD SHS1,000,000$10.2M<0.1%History
Sizzle Acquisition Corp.83014E109COMMON STOCK1,000,000$10.2M<0.1%–
Burtech Acquisition Corp123013104CLASS A COM1,000,000$10.2M<0.1%–
Inflection Point Acqustn CorG47874121CLASS A ORD1,000,000$10.0M<0.1%–
CURRCurrenc Group Inc.CL A ORD SHS876,447$9.08M<0.1%History
KEYKeycorpCOM506,145$8.82M<0.1%History
McLaren Technology Acq Corp58176U109CLASS A COM862,277$8.80M<0.1%–
Macondray Cap Acquisitn CorpG5853A107CLASS A ORD SHS850,450$8.67M<0.1%–
DCRDDecarbonization Plus Acquisition Corp IVCOM CL A800,000$8.17M<0.1%History
World Quantum Growth AcquisiG5596W101SHS CL A800,000$8.16M<0.1%–
BCSABlockchain Coinvestors Acquisition Corp. ICLASS A ORD755,104$7.77M<0.1%History
UBSUBS Group AGStock413,690$7.72M<0.1%History
VNOVornado Realty TrustSH BEN INT368,659$7.67M<0.1%History
Emerging Markets Horizon CorG3033X105CLASS A ORD SHS745,522$7.65M<0.1%–
Pine Technology Acquisitn Co722850104CLASS A COM710,000$7.17M<0.1%–
PEPLPepperLime Health Acquisition CorpCLASS A ORD SHS700,000$7.15M<0.1%History
TB SA Acquisition CorpG8657L105CLASS A ORD SHS700,000$7.06M<0.1%–
Insight Acquisition Corp45784L100COM CL A700,000$7.06M<0.1%–
IAAIAA, Inc.COM175,000$7.00M<0.1%History
SLMSLM CorpCOM421,022$6.99M<0.1%History
TLGYTlgy Acquisition CorpCLASS A ORD SHS657,389$6.75M<0.1%History
Digital Transformatn Opt Cor25401K107CLASS A COM625,000$6.28M<0.1%–
VCXB10X Capital Venture Acquisition Corp. IIICL A ORD SHS625,945$6.12M<0.1%History
SWSSClean Energy Special Situations Corp.COM600,573$6.08M<0.1%History
LanzaTech Global, Inc.00166R100CLASS A COM600,000$5.99M<0.1%–
LF Capital Acquisition Corp. II50202D102CLASS A COM550,000$5.64M<0.1%–
State Street SPDR Bloomberg Convertible Securities ETF78464A359ETF83,262$5.36M<0.1%–
GX Acquisition Corp II36260F105CLASS A COM533,506$5.34M<0.1%–
Digiasia Corp.G85094103CLASS A ORD SHS500,000$5.14M<0.1%–
Forum Merger IV Corp349875104CLASS A COM500,000$5.03M<0.1%–
SEPASEP Acquisition Corp.CLASS A COM500,000$4.98M<0.1%History
Hope Bancorp Inc43940TAB5NOTE 2.000% 5/1–$4.92M<0.1%–
2U, LLC90214JAB7NOTE 2.250% 5/0–$4.57M<0.1%–
Cyberark Software LtdM2682V108SHS34,836$4.52M<0.1%–
GSDGlobal System Dynamics, Inc.CL A400,000$4.13M<0.1%History
Innovative Intl Acqusitin CoG4809M109CLASS A ORD400,000$4.12M<0.1%–
Mason Industrial Technolgy I57520Y106COM CL A400,000$4.00M<0.1%–
Golden Arrow Merger Corp380799106CLASS A COM380,000$3.81M<0.1%–
AXNXAxonics, Inc.COM58,282$3.64M<0.1%History
CLFDClearfield, Inc.COM38,035$3.58M<0.1%History
Denali Capital Acquisitn CorG6256B122UNIT 03/28/2027350,000$3.58M<0.1%–
Collegium Pharmaceutical, Inc19459JAA2NOTE 2.625% 2/1–$3.56M<0.1%–
CHRDChord Energy CorpCOM NEW25,821$3.53M<0.1%History
CHGGChegg, IncCOM138,366$3.50M<0.1%History
PRCTPROCEPT BioRobotics CorpCOM81,103$3.37M<0.1%History
SWAVShockwave Medical, Inc.COM16,089$3.31M<0.1%History
USCTRoth CH Acquisition Co.CLASS A ORD300,000$3.09M<0.1%History
Cascadia Acquisition Corp.14739D100CLASS A COM300,000$3.04M<0.1%–
Envoy Medical, Inc.03737A101COM CL A300,000$3.03M<0.1%–
Catalyst Partnrs Acquisitn CG19550105CLASS A ORD SHS300,000$3.02M<0.1%–
Summit Healthcre Acquistn CoG8566R102CLASS A ORD SHS292,080$2.94M<0.1%–
NVEENV5 Global, Inc.COM21,859$2.89M<0.1%History
iShares Tr464288414NATIONAL MUN ETF26,608$2.81M<0.1%–
HRMYHarmony Biosciences Holdings, Inc.COM48,952$2.70M<0.1%History
MPRAMercato Partners Acquisition CorpCLASS A COM250,000$2.56M<0.1%History
Corazon Capital V838 MonocerG24237102CLASS A ORD SHS250,000$2.52M<0.1%–
ROSERose Hill Acquisition CorpCLASS A ORD230,805$2.41M<0.1%History
ACAHAtlantic Coastal Acquisition Corp.CLASS A COM240,000$2.40M<0.1%History
i3 Verticals, Inc.44933TAB2NOTE 1.000% 2/1–$2.23M<0.1%–
Live Nation Entertainment IN538034AQ2NOTE 2.500% 3/1–$2.17M<0.1%–
WFRDWeatherford International plcORD SHS40,911$2.08M<0.1%History
Ascendant Digital Acq Corp IG05157105CL A COM200,100$2.07M<0.1%–
Lionheart III Corp536262108CLASS A COM200,000$2.05M<0.1%–
DRSLeonardo DRS, Inc.Stock148,400$1.90M<0.1%History
Wellpoint Inc94973VBG1NOTE 2.750%10/1–$1.87M<0.1%–
ETSYEtsy IncCOM15,214$1.82M<0.1%History
Zeo Energy Corp.G3R95N103SHS CL A175,000$1.81M<0.1%–
iShares Core High Dividend ETF46429B663ETF17,199$1.79M<0.1%–
ROGRogers CorpCOM15,000$1.79M<0.1%History
LBRTLiberty Energy Inc.COM CL A110,993$1.78M<0.1%History
UTHRUnited Therapeutics CorpCOM5,984$1.66M<0.1%History
NBIXNeurocrine Biosciences IncStock13,879$1.66M<0.1%History
LOPEGrand Canyon Education, Inc.COM15,538$1.64M<0.1%History
MUSAMurphy USA Inc.COM5,674$1.59M<0.1%History
STKLSunOpta Inc.COM184,634$1.56M<0.1%History
SCMASeaport Calibre Materials Acquisition Corp.CLASS A COM150,000$1.54M<0.1%History
SGIISeaport Global Acquisition II Corp.CLASS A COM150,000$1.53M<0.1%History
iShares Tr464287622RUS 1000 ETF6,641$1.40M<0.1%–