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Calamos Advisors LLC

SEC CIK
0001316507
Latest filing
Jul 31, 2026

Holdings in Q1 2024

Holdings as of Mar 31, 2024, filed May 8, 2024. Long positions only; changes compare share counts with Q4 2023.

Institution overview
Positions
926
+42 vs. Q4 2023
Portfolio value
$20.6B
+$1.03B (+5.3%) vs. Q4 2023
Filed
May 8, 2024
SEC
Holdings of Calamos Advisors LLC in Q1 2024
SecurityClassSharesValue% of portfolioShare changeActionHistory
MSFTMicrosoft CorpStock2,521,200$1.06B5.2%−48,557−1.9%ReducedHistory
NVDANVIDIA CorpStock853,699$771.4M3.8%−36,681−4.1%ReducedHistory
AAPLApple Inc.Stock4,395,794$753.8M3.7%−224,578−4.9%ReducedHistory
AMZNAmazon Com IncStock3,367,540$607.4M3.0%−18,626−0.6%ReducedHistory
GOOGLAlphabet Inc.Stock2,610,652$394.0M1.9%−124,105−4.5%ReducedHistory
METAMeta Platforms, Inc.Stock700,269$340.0M1.7%−9,585−1.4%ReducedHistory
Palo Alto Networks Inc697435AF2NOTE 0.375% 6/0–$333.0M1.6%–––
LLYEli Lilly & CoStock337,734$262.7M1.3%−36,110−9.7%ReducedHistory
Pioneer Nat Res Co723787AP2NOTE 0.250% 5/1–$237.8M1.2%–––
VVisa Inc.Stock760,055$212.1M1.0%−8,289−1.1%ReducedHistory
GOOGAlphabet Inc.Stock1,326,007$201.9M1.0%−28,302−2.1%ReducedHistory
AVGOBroadcom Inc.Stock134,458$178.2M0.9%−3,546−2.6%ReducedHistory
UNHUnitedHealth Group IncStock315,488$156.1M0.8%−66,113−17.3%ReducedHistory
JPMJPMorgan Chase & CoStock768,064$153.8M0.7%−7,382−1.0%ReducedHistory
MAMastercard IncStock278,715$134.2M0.7%−3,137−1.1%ReducedHistory
TSLATesla, Inc.Stock752,191$132.2M0.6%+77,232+11.4%AddedHistory
MRKMerck & Co., Inc.Stock997,449$131.6M0.6%+56,176+6.0%AddedHistory
Airbnb, Inc.009066AB7NOTE 3/1–$122.7M0.6%–––
Royal Caribbean Group780153BQ4NOTE 6.000% 8/1–$118.8M0.6%–––
BRK.BBerkshire Hathaway IncStock281,272$118.3M0.6%−6,690−2.3%ReducedHistory
On Semiconductor Corp682189AU9NOTE 0.500% 3/0–$117.5M0.6%–New–
Apollo Global Mgmt Inc03769M304SER A MAND CNV1,817,931$115.9M0.6%+261,047+16.8%Added–
BACBank of America CorpStock3,045,290$115.5M0.6%−49,113−1.6%ReducedHistory
MongoDB, Inc.60937PAD8NOTE 0.250% 1/1–$115.1M0.6%–––
LINLinde PLCStock238,762$110.9M0.5%−5,585−2.3%ReducedHistory
Wayfair Inc.94419LAP6NOTE 3.250% 9/1–$106.5M0.5%–––
On Semiconductor Corp682189AS4NOTE 5/0–$106.0M0.5%–––
WMTWalmart Inc.Stock1,751,089$105.4M0.5%+47,059+2.8%AddedConverted for a 3-for-1 splitHistory
WFCWells Fargo & CompanyStock1,816,485$105.3M0.5%−68,567−3.6%ReducedHistory
Sea Ltd81141RAG5NOTE 0.250% 9/1–$103.4M0.5%–––
HDHome Depot, Inc.Stock265,173$101.7M0.5%−4,546−1.7%ReducedHistory
JNJJohnson & JohnsonStock633,078$100.1M0.5%−9,610−1.5%ReducedHistory
NFLXNetflix IncStock162,449$98.7M0.5%+11,467+7.6%AddedHistory
Ford MTR Co Del345370CZ1NOTE 3/1–$97.9M0.5%–––
AMDAdvanced Micro Devices IncStock529,540$95.6M0.5%−56,431−9.6%ReducedHistory
PPL Cap FDG Inc69352PAS2NOTE 2.875% 3/1–$95.2M0.5%–New–
PXDPioneer Natural Resources CoCOM361,177$94.8M0.5%−2,569−0.7%ReducedHistory
ORCLOracle CorpStock747,096$93.8M0.5%−78,261−9.5%ReducedHistory
XOMExxonMobil Holdings CorpCOM804,661$93.5M0.5%−9,834−1.2%ReducedHistory
PGProcter & Gamble CoStock575,356$93.4M0.5%−8,139−1.4%ReducedHistory
Southern Co842587DP9NOTE 3.875%12/1–$91.9M0.4%–New–
CRMSalesforce, Inc.Stock301,243$90.7M0.4%+18,760+6.6%AddedHistory
HESHess CorpStock574,642$87.7M0.4%−2,858−0.5%ReducedHistory
Uber Technologies, Inc90353TAJ9NOTE 12/1–$85.1M0.4%–––
NOWServiceNow, Inc.Stock110,266$84.1M0.4%+5,145+4.9%AddedHistory
ABBVAbbVie Inc.Stock460,609$83.9M0.4%−7,859−1.7%ReducedHistory
TMOThermo Fisher Scientific Inc.Stock143,681$83.5M0.4%+580.0%AddedHistory
DraftKings Inc.26142RAB0NOTE 3/1–$82.5M0.4%–––
Akamai Technologies Inc00971TAL5NOTE 0.375% 9/0–$82.3M0.4%–––
CVXChevron CorpStock520,387$82.1M0.4%−41,266−7.3%ReducedHistory
COSTCostco Wholesale CorpStock110,910$81.3M0.4%−1,359−1.2%ReducedHistory
CSXCSX CorpStock2,171,453$80.5M0.4%−132,859−5.8%ReducedHistory
LOWLowes Companies IncStock306,621$78.1M0.4%−3,943−1.3%ReducedHistory
DHRDanaher CorpStock312,360$78.0M0.4%−17,542−5.3%ReducedHistory
DISWalt Disney CoStock633,546$77.5M0.4%+45,138+7.7%AddedHistory
Snap Inc83304AAF3NOTE 5/0–$75.9M0.4%–––
Dexcom Inc252131AK3NOTE 0.250%11/1–$74.9M0.4%–––
BSXBoston Scientific CorpStock1,082,653$74.2M0.4%−37,911−3.4%ReducedHistory
Cyberark Software Ltd23248VAB1NOTE 11/1–$72.4M0.4%–––
Square Inc852234AF0NOTE 0.125% 3/0–$70.7M0.3%–––
Sarepta Therapeutics, Inc.803607AD2NOTE 1.250% 9/1–$69.5M0.3%–––
Akamai Technologies Inc00971TAJ0NOTE 0.125% 5/0–$69.4M0.3%–––
HONHoneywell International IncCOM335,870$68.9M0.3%−69,951−17.2%ReducedHistory
Spotify USA Inc84921RAB6NOTE 3/1–$68.9M0.3%–––
Integer Hldgs Corp45826HAB5NOTE 2.125% 2/1–$68.5M0.3%–New–
SHIFT4 PMTS Inc82452JAB5NOTE 12/1–$66.7M0.3%–––
MSMorgan StanleyStock695,191$65.5M0.3%−46,329−6.2%ReducedHistory
Digitalocean Hldgs Inc25402DAB8NOTE 12/0–$65.1M0.3%–––
UBERUber Technologies, IncStock839,527$64.6M0.3%+392,926+88.0%AddedHistory
NCL Corp Ltd62886HBD2NOTE 1.125% 2/1–$64.6M0.3%–––
ADBEAdobe Inc.Stock126,176$63.7M0.3%−7,120−5.3%ReducedHistory
Unity Software Inc.91332UAB7NOTE 11/1–$62.6M0.3%–––
INTUIntuit Inc.Stock95,966$62.4M0.3%−7,733−7.5%ReducedHistory
CSCOCisco Systems, Inc.Stock1,245,859$62.2M0.3%−25,045−2.0%ReducedHistory
KOCoca Cola CoStock1,015,713$62.1M0.3%−112,279−10.0%ReducedHistory
MIDDLEBY Corp596278AB7NOTE 1.000% 9/0–$62.1M0.3%–––
CMGChipotle Mexican Grill IncCOM21,355$62.1M0.3%+3,051+16.7%AddedHistory
Halozyme Therapeutics, Inc.40637HAF6NOTE 1.000% 8/1–$61.9M0.3%–––
Rivian Automotive, Inc.76954AAB9NOTE 4.625% 3/1–$61.6M0.3%–New–
Confluent, Inc.20717MAB9NOTE 1/1–$59.8M0.3%–––
CBChubb LtdStock230,191$59.6M0.3%+25,229+12.3%AddedHistory
MUMicron Technology IncStock503,747$59.4M0.3%+39,511+8.5%AddedHistory
TMUST-Mobile US, Inc.Stock361,770$59.0M0.3%−17,870−4.7%ReducedHistory
GSGoldman Sachs Group IncStock141,340$59.0M0.3%−2,692−1.9%ReducedHistory
GEGeneral Electric CoStock335,912$59.0M0.3%−5,056−1.5%ReducedHistory
UNPUnion Pacific CorpStock238,351$58.6M0.3%−36,865−13.4%ReducedHistory
Post Hldgs Inc737446AT1NOTE 2.500% 8/1–$58.4M0.3%–––
MRSHMarsh & McLennan Companies, Inc.Stock283,245$58.3M0.3%−3,245−1.1%ReducedHistory
ACNAccenture plcStock166,603$57.7M0.3%−2,563−1.5%ReducedHistory
Cloudflare, Inc.18915MAC1NOTE 8/1–$56.6M0.3%–––
Booking Holdings Inc.09857LAN8NOTE 0.750% 5/0–$56.1M0.3%–––
CMCSAComcast CorpStock1,292,317$56.0M0.3%−18,366−1.4%ReducedHistory
MCDMcDonalds CorpStock198,536$56.0M0.3%−3,053−1.5%ReducedHistory
CATCaterpillar IncStock150,456$55.1M0.3%−3,783−2.5%ReducedHistory
Jazz Investments I Ltd472145AF8NOTE 2.000% 6/1–$53.8M0.3%–––
CONMED Corp207410AH4NOTE 2.250% 6/1–$53.0M0.3%–––
Blackline, Inc.09239BAD1NOTE 3/1–$53.0M0.3%–––
PEPPepsiCo IncStock301,274$52.7M0.3%−4,475−1.5%ReducedHistory
RTXRTX CorpStock528,334$51.5M0.3%−48,752−8.4%ReducedHistory
PMPhilip Morris International Inc.Stock557,486$51.1M0.2%−8,291−1.5%ReducedHistory

Options (22)

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 2024
SecurityClassPutsCalls
SPYSPDR S&P 500 ETF TrustETF$179.2M–
Invesco QQQ Trust Series I46090E103ETF$169.9M–
ZSZscaler, Inc.Stock$24.4M–
iShares Tr464287184CHINA LG-CAP ETF–$18.0M
MMYTMakeMyTrip LtdStock$8.51M$8.08M
CDNSCadence Design Systems IncStock–$15.3M
PINSPinterest, Inc.CL A–$13.3M
AALAmerican Airlines Group Inc.Stock–$13.1M
DHIHorton D R IncCOM–$11.0M
State Street SPDR S&P Regional Banking ETF78464A698ETF–$10.2M
ICLRIcon PLCCOM–$10.0M
MSMorgan StanleyStock–$9.65M
TSMTaiwan Semiconductor Manufacturing Co LtdADR–$9.46M
BABAAlibaba Group Holding LtdADR–$8.39M
BSXBoston Scientific CorpStock–$8.02M
MRKMerck & Co., Inc.Stock$7.63M–
MRVLMarvell Technology, Inc.COM–$4.10M
SCHWSchwab Charles CorpStock–$3.44M
CNQCanadian Natural Resources LtdCOM–$3.14M
FTITechnipFMC plcCOM–$2.90M
CXCemex SAB de CVSPON ADR NEW–$2.00M
TMETencent Music Entertainment GroupSPON ADS–$806.4K

Sold out since Q4 2023 (116)

Positions held at the end of Q4 2023 that are gone from this filing.

The largest 100 of 116 by value last quarter.

Positions of Calamos Advisors LLC sold out since Q4 2023
SecurityClassShares in Q4 2023Value in Q4 2023% of portfolio in Q4 2023History
Splunk Inc848637AD6NOTE 1.125% 9/1–$57.8M0.3%–
Nice Sys Inc65366HAB9NOTE 1.250% 1/1–$47.8M0.2%–
SOVOSovos Brands, Inc.COM1,698,738$37.4M0.2%History
Alteryx, Inc.02156BAF0NOTE 1.000% 8/0–$35.1M0.2%–
Splunk Inc848637AF1NOTE 1.125% 6/1–$34.0M0.2%–
Live Nation Entertainment IN538034AU3NOTE 2.000% 2/1–$19.6M0.1%–
EQT Corp26884LAK5NOTE 1.750% 5/0–$17.4M0.1%–
MRTXMirati Therapeutics, Inc.COM277,808$16.3M0.1%History
ULTAUlta Beauty, Inc.Stock29,633$14.5M0.1%History
CERECerevel Therapeutics Holdings, Inc.COM305,303$12.9M0.1%History
ZIONZions Bancorporation, National AssociationCOM256,984$11.3M0.1%History
Allscripts Healthcare Solutn01988PAF5NOTE 0.875% 1/0–$10.6M0.1%–
Lumentum Hldgs Inc55024UAB5NOTE 0.250% 3/1–$10.1M0.1%–
NIO Inc.62914VAE6NOTE 2/0–$9.92M0.1%–
Alteryx, Inc.02156BAD5NOTE 0.500% 8/0–$9.73M<0.1%–
AVBAvalonbay Communities IncCOM50,149$9.39M<0.1%History
DGXQuest Diagnostics IncCOM65,031$8.97M<0.1%History
MGMMGM Resorts InternationalStock188,354$8.42M<0.1%History
KHCKraft Heinz CoStock223,494$8.26M<0.1%History
U.S. Global Jets ETF26922A842ETF428,500$8.15M<0.1%–
ALSumisho Air Lease CorpCL A192,000$8.05M<0.1%History
Alpha Partners Tech Mergr CoG63290111CLASS A ORD SHS750,000$8.03M<0.1%–
Chenghe Acquisition Co.G2086M107CLASS A ORD700,000$7.70M<0.1%–
3D Sys Corp Del88554DAD8NOTE 11/1–$7.63M<0.1%–
FCNCAFirst Citizens Bancshares IncCL A4,500$6.39M<0.1%History
Ares Capital Corp04010LAW3NOTE 4.625% 3/0–$6.31M<0.1%–
IMGNImmunoGen, Inc.COM191,117$5.67M<0.1%History
Impinj Inc453204AD1NOTE 1.125% 5/1–$5.46M<0.1%–
SNOWSnowflake Inc.Stock25,230$5.02M<0.1%History
NTESNetEase, Inc.SPONSORED ADS52,410$4.88M<0.1%History
UBSUBS Group AGStock149,425$4.62M<0.1%History
State Street SPDR Bloomberg Convertible Securities ETF78464A359ETF57,555$4.15M<0.1%–
DISH Network CORP25470MAD1NOTE 2.375% 3/1–$3.87M<0.1%–
AXNXAxonics, Inc.COM60,694$3.78M<0.1%History
Vroom, Inc.92918VAB5NOTE 0.750% 7/0–$3.56M<0.1%–
KVUEKenvue Inc.Stock157,944$3.40M<0.1%History
LILi Auto Inc.SPONSORED ADS86,798$3.25M<0.1%History
MMacy's, Inc.COM144,838$2.91M<0.1%History
Silverbox Corp III82836N206UNIT 02/28/2028250,000$2.72M<0.1%–
LSPDLightspeed Commerce Inc.SUB VTG SHS106,278$2.23M<0.1%History
OLLIOllie's Bargain Outlet Holdings, Inc.Stock29,314$2.22M<0.1%History
VERXVertex, Inc.Stock74,794$2.01M<0.1%History
KRYSKrystal Biotech, Inc.COM15,705$1.95M<0.1%History
FSLYFastly, Inc.CL A108,543$1.93M<0.1%History
INSPInspire Medical Systems, Inc.COM9,483$1.93M<0.1%History
DAVAEndava plcADS24,596$1.91M<0.1%History
AVDXAvidXchange Holdings, Inc.COM151,359$1.88M<0.1%History
SIMOSilicon Motion Technology CORPSPONSORED ADR29,528$1.81M<0.1%History
DTDynatrace, Inc.Stock32,606$1.78M<0.1%History
EXELExelixis, Inc.COM67,884$1.63M<0.1%History
INTAIntapp, Inc.COM41,793$1.59M<0.1%History
FIVNFive9, Inc.COM18,957$1.49M<0.1%History
CBAYCymaBay Therapeutics, Inc.COM56,825$1.34M<0.1%History
PODDInsulet CorpStock5,957$1.29M<0.1%History
ROCKGibraltar Industries, Inc.COM15,746$1.24M<0.1%History
CRSCarpenter Technology CorpCOM17,531$1.24M<0.1%History
YELPYelp IncCL A25,772$1.22M<0.1%History
AMPHAmphastar Pharmaceuticals, Inc.COM19,479$1.20M<0.1%History
PETQPetIQ, Inc.COM CL A59,986$1.18M<0.1%History
LOPEGrand Canyon Education, Inc.COM8,617$1.14M<0.1%History
GSHDGoosehead Insurance, Inc.COM CL A13,879$1.05M<0.1%History
NETDUNabors Energy Transition Corp. IIUNIT 99/99/9999100,000$1.04M<0.1%History
KVAUFKeen Vision Acquisition Corp.UNIT 99/99/9999100,000$1.04M<0.1%History
Haymaker Acquisition Corp IVG4375F124UNIT 99/99/9999100,000$1.03M<0.1%–
AUGXAugmedix, Inc.COM151,494$886.2K<0.1%History
FRSHFreshworks Inc.Stock36,804$864.5K<0.1%History
APLDApplied Digital Corp.COM NEW124,715$840.6K<0.1%History
IONSIonis Pharmaceuticals IncCOM16,379$828.6K<0.1%History
SPSCSPS Commerce IncCOM3,993$774.0K<0.1%History
OSISOsi Systems IncCOM5,907$762.3K<0.1%History
GRSDGRANDSTAND LtdORDINARY SHARES75,183$733.0K<0.1%History
TCMDTactile Systems Technology IncCOM50,667$724.5K<0.1%History
GLOBGlobant S.A.COM3,022$719.2K<0.1%History
LUXHLuxurban Hotels Inc.COM119,523$713.6K<0.1%History
Four Leaf Acquisition Corp35088F206UNIT 03/15/202860,000$661.2K<0.1%–
SIBNSI-BONE, Inc.COM29,554$620.3K<0.1%History
Oak Woods Acquisition Corp67190B203UNIT 03/23/202855,000$617.6K<0.1%–
EVLVEvolv Technologies Holdings, Inc.COM CL A128,659$607.3K<0.1%History
QLYSQualys, Inc.COM3,010$590.8K<0.1%History
YETIYETI Holdings, Inc.COM11,140$576.8K<0.1%History
NEONeogenomics IncCOM NEW35,531$574.9K<0.1%History
ALCUFAlchemy Investments Acquisition Corp 1UNIT 11/30/202750,000$549.3K<0.1%History
Burlington Stores, Inc.122017AB2NOTE 2.250% 4/1–$539.2K<0.1%–
iShares Tr464287689RUSSELL 3000 ETF1,666$456.1K<0.1%–
DISH Network CORP25470MAB5NOTE 3.375% 8/1–$359.0K<0.1%–
ISLUFIsrael Acquisitions CorpUNIT 12/12/202730,000$324.0K<0.1%History
HURNHuron Consulting Group Inc.Stock2,706$278.2K<0.1%History
SPKLUSpark I Acquisition CorpUNIT 09/28/202824,769$252.1K<0.1%History
GDYNGrid Dynamics Holdings, Inc.CL A17,505$233.3K<0.1%History
99 Acquisition Group Inc65445K200UNIT 99/99/999920,000$206.2K<0.1%–
QETAUQuetta Acquisition CorpUNIT 11/30/202414,770$150.8K<0.1%History
Viavi Solutions Inc.925550AB1NOTE 1.000% 3/0–$129.3K<0.1%–
NPKINPK International Inc.COM SHS11,550$76.7K<0.1%History
Sizzle Acquisition Corp.83014E117*W EXP 11/02/202500,000$45.5K<0.1%–
Semper Paratus Acquisition CG8028L131*W EXP 11/04/2021,000,000$40.0K<0.1%–
Winnebago Inds Inc974637AB6NOTE 1.500% 4/0–$33.9K<0.1%–
L Catterton Asia AcquisitionG5346G117*W EXP 03/08/20233,333$22.7K<0.1%–
Concord Acquisition Corp III20607V114*W EXP 99/99/999225,000$22.5K<0.1%–
HCM Acquisition CorpG4365A127*W EXP 01/20/202625,000$17.2K<0.1%–
Tandem Diabetes Care Inc875372AB0NOTE 1.500% 5/0–$15.2K<0.1%–