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Calamos Advisors LLC

SEC CIK
0001316507
Latest filing
Jul 31, 2026

Holdings in Q3 2023

Holdings as of Sep 30, 2023, filed Oct 26, 2023. Long positions only; changes compare share counts with Q2 2023.

Institution overview
Positions
899
−69 vs. Q2 2023
Portfolio value
$18.4B
−$1.25B (−6.4%) vs. Q2 2023
Filed
Oct 26, 2023
SEC
Holdings of Calamos Advisors LLC in Q3 2023
SecurityClassSharesValue% of portfolioShare changeActionHistory
MSFTMicrosoft CorpStock2,599,426$820.8M4.5%+17,337+0.7%AddedHistory
AAPLApple Inc.Stock4,666,945$799.0M4.3%−154,917−3.2%ReducedHistory
AMZNAmazon Com IncStock3,442,179$437.6M2.4%+10,981+0.3%AddedHistory
NVDANVIDIA CorpStock896,701$390.1M2.1%−1,317−0.1%ReducedHistory
GOOGLAlphabet Inc.Stock2,758,452$361.0M2.0%−125,513−4.4%ReducedHistory
Palo Alto Networks Inc697435AF2NOTE 0.375% 6/0–$289.7M1.6%–––
METAMeta Platforms, Inc.Stock710,779$213.4M1.2%+52,282+7.9%AddedHistory
Tesla, Inc.88160RAG6NOTE 2.000% 5/1–$209.3M1.1%–––
Pioneer Nat Res Co723787AP2NOTE 0.250% 5/1–$205.7M1.1%–––
LLYEli Lilly & CoStock376,736$202.4M1.1%−10,119−2.6%ReducedHistory
UNHUnitedHealth Group IncStock390,649$197.0M1.1%+7,047+1.8%AddedHistory
VVisa Inc.Stock836,715$192.5M1.0%−4,095−0.5%ReducedHistory
GOOGAlphabet Inc.Stock1,369,470$180.6M1.0%00.0%UnchangedHistory
On Semiconductor Corp682189AS4NOTE 5/0–$131.5M0.7%–––
Airbnb, Inc.009066AB7NOTE 3/1–$128.8M0.7%–––
MongoDB, Inc.60937PAD8NOTE 0.250% 1/1–$123.2M0.7%–––
AVGOBroadcom Inc.Stock146,028$121.3M0.7%−22,690−13.4%ReducedHistory
JPMJPMorgan Chase & CoStock780,908$113.2M0.6%−43,859−5.3%ReducedHistory
CVXChevron CorpStock670,360$113.0M0.6%−1500.0%ReducedHistory
MAMastercard IncStock283,684$112.3M0.6%+508+0.2%AddedHistory
LINLinde PLCStock287,839$107.2M0.6%+13,009+4.7%AddedHistory
Akamai Technologies Inc00971TAL5NOTE 0.375% 9/0–$105.9M0.6%–––
BRK.BBerkshire Hathaway IncStock291,723$102.2M0.6%00.0%UnchangedHistory
Unity Software Inc.91332UAB7NOTE 11/1–$102.0M0.6%–––
TSLATesla, Inc.Stock407,013$101.8M0.6%+7,307+1.8%AddedHistory
JNJJohnson & JohnsonStock646,531$100.7M0.5%−50,433−7.2%ReducedHistory
MRKMerck & Co., Inc.Stock970,607$99.9M0.5%+188,466+24.1%AddedHistory
Sea Ltd81141RAG5NOTE 0.250% 9/1–$98.7M0.5%–––
XOMExxonMobil Holdings CorpCOM818,943$96.3M0.5%+2,017+0.2%AddedHistory
DraftKings Inc.26142RAB0NOTE 3/1–$94.3M0.5%–––
ORCLOracle CorpStock880,493$93.3M0.5%+91,465+11.6%AddedHistory
Ford MTR Co Del345370CZ1NOTE 3/1–$91.9M0.5%–––
WMTWalmart Inc.Stock569,556$91.1M0.5%+691+0.1%AddedHistory
Apollo Global Mgmt Inc03769M304SER A MAND CNV1,560,829$86.0M0.5%+1,560,829New–
PGProcter & Gamble CoStock587,153$85.6M0.5%+1,103+0.2%AddedHistory
BACBank of America CorpStock3,124,910$85.6M0.5%+5,310+0.2%AddedHistory
TMOThermo Fisher Scientific Inc.Stock166,950$84.5M0.5%+7,011+4.4%AddedHistory
HDHome Depot, Inc.Stock272,010$82.2M0.4%+883+0.3%AddedHistory
Wayfair Inc.94419LAP6NOTE 3.250% 9/1–$80.2M0.4%–New–
Snap Inc83304AAF3NOTE 5/0–$77.3M0.4%–––
Cyberark Software Ltd23248VAB1NOTE 11/1–$75.7M0.4%–––
WFCWells Fargo & CompanyStock1,809,322$73.9M0.4%−83,557−4.4%ReducedHistory
HONHoneywell International IncCOM399,436$73.8M0.4%−6,714−1.7%ReducedHistory
CSXCSX CorpStock2,377,631$73.1M0.4%−233,066−8.9%ReducedHistory
Dexcom Inc252131AK3NOTE 0.250%11/1–$72.5M0.4%–––
KOCoca Cola CoStock1,272,577$71.2M0.4%+7,966+0.6%AddedHistory
Akamai Technologies Inc00971TAJ0NOTE 0.125% 5/0–$71.1M0.4%–––
AMDAdvanced Micro Devices IncStock687,366$70.7M0.4%+157,457+29.7%AddedHistory
Uber Technologies, Inc90353TAJ9NOTE 12/1–$70.6M0.4%–––
Bill Com Hldgs Inc090043AB6NOTE 12/0–$70.4M0.4%–––
ABBVAbbVie Inc.Stock472,386$70.4M0.4%+578+0.1%AddedHistory
Digitalocean Hldgs Inc25402DAB8NOTE 12/0–$70.1M0.4%–––
CSCOCisco Systems, Inc.Stock1,284,459$69.1M0.4%+1,400+0.1%AddedHistory
Confluent, Inc.20717MAB9NOTE 1/1–$68.1M0.4%–––
Dexcom Inc252131AH0NOTE 0.750%12/0–$67.9M0.4%–––
Royal Caribbean Group780153BQ4NOTE 6.000% 8/1–$67.1M0.4%–New–
Sarepta Therapeutics, Inc.803607AD2NOTE 1.250% 9/1–$66.8M0.4%–New–
Splunk Inc848637AF1NOTE 1.125% 6/1–$66.1M0.4%–––
ADBEAdobe Inc.Stock127,329$64.9M0.4%+6,407+5.3%AddedHistory
Square Inc852234AF0NOTE 0.125% 3/0–$64.3M0.3%–––
COSTCostco Wholesale CorpStock113,660$64.2M0.3%+3,876+3.5%AddedHistory
Jazz Investments I Ltd472145AF8NOTE 2.000% 6/1–$63.9M0.3%–––
Spotify USA Inc84921RAB6NOTE 3/1–$63.9M0.3%–––
NFLXNetflix IncStock165,517$62.5M0.3%+20,618+14.2%AddedHistory
Datadog, Inc.23804LAB9NOTE 0.125% 6/1–$62.3M0.3%–––
LOWLowes Companies IncStock299,185$62.2M0.3%+13,511+4.7%AddedHistory
SHIFT4 PMTS Inc82452JAB5NOTE 12/1–$62.0M0.3%–––
MSMorgan StanleyStock750,716$61.3M0.3%−25,265−3.3%ReducedHistory
DHRDanaher CorpStock242,244$60.1M0.3%+18,776+8.4%AddedHistory
Halozyme Therapeutics, Inc.40637HAF6NOTE 1.000% 8/1–$59.9M0.3%–New–
BSXBoston Scientific CorpStock1,125,503$59.4M0.3%+2,499+0.2%AddedHistory
NOWServiceNow, Inc.Stock105,496$59.0M0.3%+222+0.2%AddedHistory
DISH Network CORP25470MAF6NOTE 12/1–$58.6M0.3%–––
ACNAccenture plcStock190,567$58.5M0.3%−11,285−5.6%ReducedHistory
CMCSAComcast CorpStock1,319,687$58.5M0.3%+2,426+0.2%AddedHistory
CRMSalesforce, Inc.Stock284,970$57.8M0.3%+370+0.1%AddedHistory
MPCMarathon Petroleum CorpStock376,162$56.9M0.3%+533+0.1%AddedHistory
NCL Corp Ltd62886HBD2NOTE 1.125% 2/1–$56.8M0.3%–––
CONMED Corp207410AH4NOTE 2.250% 6/1–$55.6M0.3%–––
John Bean Technologies Corp477839AB0NOTE 0.250% 5/1–$55.3M0.3%–––
MRSHMarsh & McLennan Companies, Inc.Stock287,235$54.7M0.3%−23,354−7.5%ReducedHistory
PEPPepsiCo IncStock321,053$54.4M0.3%+740+0.2%AddedHistory
NKENIKE, Inc.Stock565,859$54.1M0.3%−70,789−11.1%ReducedHistory
UNPUnion Pacific CorpStock264,280$53.8M0.3%+23,763+9.9%AddedHistory
MCDMcDonalds CorpStock202,995$53.5M0.3%+377+0.2%AddedHistory
INTUIntuit Inc.Stock104,616$53.5M0.3%−7,311−6.5%ReducedHistory
TMUST-Mobile US, Inc.Stock381,158$53.4M0.3%+21,274+5.9%AddedHistory
Booking Holdings Inc.09857LAN8NOTE 0.750% 5/0–$53.3M0.3%–––
MIDDLEBY Corp596278AB7NOTE 1.000% 9/0–$52.8M0.3%–––
RTXRTX CorpStock732,698$52.7M0.3%−182,069−19.9%ReducedHistory
PMPhilip Morris International Inc.Stock569,502$52.7M0.3%+1,169+0.2%AddedHistory
Vail Resorts Inc91879QAN9NOTE 1/0–$52.7M0.3%–––
Alnylam Pharmaceuticals, Inc.02043QAB3NOTE 1.000% 9/1–$52.3M0.3%–New–
Cloudflare, Inc.18915MAC1NOTE 8/1–$51.3M0.3%–––
Nextera Energy Inc65339F713UNIT 09/01/20251,353,891$51.2M0.3%−31,333−2.3%Reduced–
Fastly, Inc.31188VAB6NOTE 3/1–$50.1M0.3%–––
AXPAmerican Express CoStock323,966$48.3M0.3%+293+0.1%AddedHistory
MDTMedtronic plcStock613,844$48.1M0.3%+34,785+6.0%AddedHistory
DISWalt Disney CoStock593,016$48.1M0.3%−341−0.1%ReducedHistory
Teradyne, Inc880770AG7NOTE 1.250%12/1–$47.8M0.3%–––

Options (39)

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 Q3 2023
SecurityClassPutsCalls
SPYSPDR S&P 500 ETF TrustETF$289.5M–
Invesco QQQ Trust Series I46090E103ETF$112.9M–
iShares Tr46428743220 YR TR BD ETF–$74.9M
AMZNAmazon Com IncStock–$57.2M
State Street Industrial Select Sector SPDR ETF81369Y704ETF$34.1M–
iShares MSCI Eafe ETF464287465ETF$34.1M–
iShares Tr464287234MSCI EMG MKT ETF–$22.9M
PANWPalo Alto Networks IncStock–$22.7M
iShares MSCI India ETF46429B598ETF$19.0M–
MSFTMicrosoft CorpStock–$18.2M
AAPLApple Inc.Stock–$17.1M
BIDUBaidu, Inc.ADR–$14.6M
State Street SPDR S&P Regional Banking ETF78464A698ETF$12.7M–
BABAAlibaba Group Holding LtdADR–$9.17M
iShares Inc464286772MSCI STH KOR ETF–$8.78M
Kraneshares Trust500767306CSI CHI INTERNET–$8.62M
IBNIcici Bank LtdADR–$8.06M
BYNDBeyond Meat, Inc.COM$7.14M–
AMDAdvanced Micro Devices IncStock–$6.95M
NENoble Corp plcORD SHS A–$6.72M
RTXRTX CorpStock$6.12M–
BACBank of America CorpStock$5.22M–
DISHDISH Network CORPCL A$5.09M–
MUFGMitsubishi Ufj Financial Group IncSPONSORED ADS–$3.87M
SIMOSilicon Motion Technology CORPSPONSORED ADR–$3.59M
MRKMerck & Co., Inc.Stock–$3.52M
TMToyota Motor CorpADS–$3.50M
ARCOArcos Dorados Holdings Inc.SHS CLASS -A -–$2.91M
LILi Auto Inc.SPONSORED ADS–$2.56M
INMDInMode Ltd.SHS–$2.45M
TCOMTrip.com Group LtdADS–$1.80M
NVDANVIDIA CorpStock–$1.73M
CXCemex SAB de CVSPON ADR NEW–$1.49M
PBRPetrobras - Petroleo Brasileiro SASPONSORED ADR–$1.33M
First Trust Dow Jones Internet Index Fund33733E302ETF$1.14M–
IRBTiRobot CorpCOM–$923.1K
BEKEKE Holdings Inc.SPONSORED ADS–$727.6K
iShares Tr46429B614MSCI INDIA SM CP$273.1K–
ProShares Tr74347X831ULTRAPRO QQQ$266.5K–

Sold out since Q2 2023 (149)

Positions held at the end of Q2 2023 that are gone from this filing.

The largest 100 of 149 by value last quarter.

Positions of Calamos Advisors LLC sold out since Q2 2023
SecurityClassShares in Q2 2023Value in Q2 2023% of portfolio in Q2 2023History
Illumina, Inc.452327AK5NOTE 8/1–$84.5M0.4%–
American Elec PWR Co Inc02557T307UNIT 08/15/20251,690,162$84.0M0.4%–
Nextera Energy Inc65339F739UNIT 99/99/99991,361,864$66.8M0.3%–
MMPMagellan Midstream Partners, L.P.COM UNIT RP LP738,660$46.0M0.2%History
Splunk Inc848637AC8NOTE 0.500% 9/1–$39.6M0.2%–
PDCEPDC Energy, Inc.COM510,000$36.3M0.2%History
KKR and Co Inc 6 McOnv PFD C48251W401CONVERTIBLE PREFERRED STOCK542,397$35.9M0.2%–
Mercadolibre Inc58733RAD4NOTE 2.000% 8/1–$34.2M0.2%–
AJRDAerojet Rocketdyne Holdings, Inc.COM609,730$33.5M0.2%History
FORGForgeRock, Inc.CL A1,400,271$28.8M0.1%History
PG&E Corp69331C140UNIT 99/99/9999150,000$22.4M0.1%–
Fti Consulting, Inc302941AP4NOTE 2.000% 8/1–$21.1M0.1%–
BKIBlack Knight, Inc.COM346,279$20.7M0.1%History
Envista Holdings Corp29415FAB0NOTE 2.375% 6/0–$18.2M0.1%–
NFNTInfinite Acquisition Corp.CL A ORD SHS1,500,000$15.9M0.1%History
Herbalife Ltd.42703MAD5NOTE 2.625% 3/1–$14.6M0.1%–
Roadzen Inc.G9320Z109CLASS A ORD1,250,000$13.3M0.1%–
BOCNBlue Ocean Acquisition CorpCLASS A ORD SHS1,250,000$13.2M0.1%History
M3-Brigade Acquisition III Corp.55407R103CL A COM1,250,000$13.1M0.1%–
NovoCure Ltd67011XAB9NOTE 11/0–$12.9M0.1%–
Coherent Corp.19247G2066% CONV PFD A50,000$11.4M0.1%–
GoGreen Investments CorpG9461B101ORD SHS CL A1,000,000$11.1M0.1%–
Repligen Corp759916AB5NOTE 0.375% 7/1–$10.8M0.1%–
Andretti Acquisition CorpG26735103CL A ORD SHS1,000,000$10.6M0.1%–
KnightSwan Acquisition Corp499103109CL A COM1,000,000$10.6M0.1%–
Heartland Media Acquisition Corp.42237V108CL A COM1,000,000$10.5M0.1%–
Southport Acquisition Corp84465L105CL A COM1,000,000$10.5M0.1%–
MicroStrategy Inc594972AC5NOTE 0.750%12/1–$10.5M0.1%–
Wix.com Ltd.92940WAB5NOTE 7/0–$9.99M0.1%–
Waverley Capital Acquis CorpG06536109SHS CL A800,000$8.30M<0.1%–
FICVFrontier Investment CorpCLASS800,000$8.29M<0.1%History
National Vision Hldgs Inc63845RAB3NOTE 2.500% 5/1–$7.88M<0.1%–
Consilium Acquisitn Corp I LG2365L101CLASS A ORD SHS750,000$7.87M<0.1%–
UTA Acquisition CorpG9473A109CLASS A ORD SHS700,558$7.40M<0.1%–
INSPInspire Medical Systems, Inc.COM19,982$6.49M<0.1%History
TechTarget, Inc.87874RAB6NOTE 0.125%12/1–$6.40M<0.1%–
Colombier Acquisition Corp19533H108CL A600,000$6.16M<0.1%–
Infinera Corp45667GAF0DEBT 3.750% 8/0–$6.03M<0.1%–
Evolent Health, Inc.30050BAD3NOTE 1.500%10/1–$5.70M<0.1%–
BYNObyNordic Acquisition CorpCLASS A COM500,000$5.29M<0.1%History
Aura Fat Projs Acquisition CG06362100CLASS A ORD500,000$5.29M<0.1%–
SILVERspac Inc.G8136V104CLASS A ORD507,400$5.27M<0.1%–
HWELHealthwell Acquisition Corp. ICLASS A COM512,066$5.26M<0.1%History
AERAerCap Holdings N.V.SHS82,500$5.24M<0.1%History
KYCHKeyarch Acquisition CorpORD SHS CL A500,000$5.23M<0.1%History
PEGRProject Energy Reimagined Acquisition Corp.CLASS A ORD500,000$5.18M<0.1%History
TCOAZalatoris Acquisition Corp.COM CL A500,000$5.17M<0.1%History
TMDXTransMedics Group, Inc.COM61,343$5.15M<0.1%History
Axonprime Infrstctr Aqstn Co05467C108CLASS A COM500,000$5.14M<0.1%–
TWCBBilander Acquisition Corp.CL A COM500,000$5.08M<0.1%History
THCPThunder Bridge Capital Partners IV, Inc.CLASS A COM500,000$5.06M<0.1%History
HLITHarmonic Inc.COM279,781$4.52M<0.1%History
PFTAPerception Capital Corp. IIICLASS A ORD SHS432,281$4.49M<0.1%History
TAPMolson Coors Beverage CoCL B65,100$4.29M<0.1%History
TMCITreace Medical Concepts, Inc.COM154,074$3.94M<0.1%History
Black Spade Acquisition CoG11537100SHS CL A381,099$3.94M<0.1%–
UNVRUnivar Solutions Inc.COM108,079$3.87M<0.1%History
AZOAutoZone IncCOM1,517$3.78M<0.1%History
NSSCNapco Security Technologies, IncStock97,627$3.38M<0.1%History
APLSApellis Pharmaceuticals, Inc.COM35,133$3.20M<0.1%History
Kensington Capital AcquisitiG5251K103SHS CL A296,200$3.13M<0.1%–
SIMOSilicon Motion Technology CORPSPONSORED ADR42,135$3.03M<0.1%History
FuboTV Inc.35953DAB0NOTE 3.250% 2/1–$2.90M<0.1%–
CITECartica Acquisition CorpCLASS A ORD SHS269,402$2.87M<0.1%History
Conyers Park III Acqsitn Cor21289P102CLASS A COM280,268$2.86M<0.1%–
CNDAConcord Acquisition Corp IICOM CL A276,950$2.84M<0.1%History
Amyris, Inc.03236MAJ0NOTE 1.500%11/1–$2.83M<0.1%–
INMDInMode Ltd.SHS63,951$2.39M<0.1%History
WINGWingstop Inc.COM11,829$2.37M<0.1%History
COCOVita Coco Company, Inc.COM81,249$2.18M<0.1%History
Galata Acquisition CorpG3R23A108SHS CL A200,000$2.12M<0.1%–
PEGAPegasystems IncCOM41,342$2.04M<0.1%History
AAONAaon, Inc.COM PAR $0.00418,284$1.73M<0.1%History
CHDNChurchill Downs IncCOM12,248$1.70M<0.1%History
INDIindie Semiconductor, Inc.CLASS A COM163,446$1.54M<0.1%History
Blue Whale Acquisition Cor AG1330M103CLASS A ORD SHS141,132$1.43M<0.1%–
SDGRSchrodinger, Inc.COM25,200$1.26M<0.1%History
NTRANatera, Inc.COM25,222$1.23M<0.1%History
SWAVShockwave Medical, Inc.COM3,987$1.14M<0.1%History
SESea LtdSPONSORD ADS19,535$1.13M<0.1%History
Ap Acquisition CorpG04058106CL A ORD SHS100,000$1.08M<0.1%–
ZETAZeta Global Holdings Corp.CL A123,476$1.05M<0.1%History
NVTSNavitas Semiconductor CorpCOM99,897$1.05M<0.1%History
MMSIMerit Medical Systems IncCOM12,517$1.05M<0.1%History
Ftac Zeus Acquisition Cor30320F106CLASS A COM100,000$1.04M<0.1%–
WYNNWynn Resorts LtdCOM9,639$1.02M<0.1%History
ARCOArcos Dorados Holdings Inc.SHS CLASS -A -98,804$1.01M<0.1%History
CWSTCasella Waste Systems IncCL A10,737$971.2K<0.1%History
KRTXKaruna Therapeutics, Inc.COM4,381$950.0K<0.1%History
HROWHarrow, Inc.COM49,608$944.5K<0.1%History
AXSMAxsome Therapeutics, Inc.COM12,755$916.6K<0.1%History
LGNDLigand Pharmaceuticals IncCOM NEW12,619$909.8K<0.1%History
WWEWorld Wrestling Entertainment, LLCCL A8,005$868.3K<0.1%History
XENEXenon Pharmaceuticals Inc.COM17,637$679.0K<0.1%History
LSCCLattice Semiconductor CorpCOM7,061$678.4K<0.1%History
RVNCRevance Therapeutics, Inc.COM24,923$630.8K<0.1%History
Hammerhead Energy Inc408302115*W EXP 02/23/202400,000$544.0K<0.1%–
GoGreen Investments CorpG9461B119*W EXP 05/31/202500,000$490.0K<0.1%–
TTDTrade Desk, Inc.Stock5,788$446.9K<0.1%History
SRADSportradar Group AGCLASS A ORD SHS30,011$387.1K<0.1%History