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13F-HR filed by Calamos Advisors LLC

Calamos Advisors LLC filed this 13F-HR for the quarter ended 2026-03-31, filed 2026-05-04, with 1,196 holding rows worth $28,224,976,653.

Accession
0001316507-26-000002
Filed
2026-05-04
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q1 2026

A combination report, 1,269 entries on the cover page, a total value of $28,224,976,653 stated on the cover page (in dollars after the unit check, H1), rows summing to $28,224,976,653 with VALUE read as dollars as filed, 13F file number 028-11166. The quarter's positions are built on this report. The resolved quarter.

Other managers

The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).

Issuer as filedCUSIPClassAmountValueValue read asType
VERTIV HOLDINGS CO COM CL A92537N108Stock1,203$301,448dollars as filed
VWO922042858SHS5,574$301,275dollars as filed
CHOICE HOTELS INTL INC169905106COM2,910$301,185dollars as filed
AVANTOR INC COM05352A100Stock38,401$301,064dollars as filed
EPR PPTYS COM SH BEN INT26884U109REIT6,020$300,759dollars as filed
JEFFERIES FINANCIAL GROUP IN47233W109COM7,284$300,611dollars as filed
FIDELITY NATIONAL FINANCIAL31620R303FNF GROUP COM6,460$299,615dollars as filed
PROSPERITY BANCSHARES INC743606105COM4,447$298,749dollars as filed
TIMKEN CO887389104COM2,970$298,693dollars as filed
POOL CORP COM73278L105Stock1,474$298,234dollars as filed
CARTERS INC146229109COM8,335$298,060dollars as filed
PEGASYSTEMS INC COM705573103Stock7,003$298,048dollars as filed
SCHNEIDER NATIONAL INC80689H102CL B11,302$297,921dollars as filed
Avantis US Equity ETF025072885SHS2,673$297,184dollars as filed
ASSURED GUARANTY LTD COMG0585R106Stock3,636$296,261dollars as filed
BATH & BODY WORKS INC COM070830104Stock15,868$296,256dollars as filed
GENPACT LIMITED SHSG3922B107Stock7,948$296,063dollars as filed
NUVEEN TAXABLE MUNICPAL INM FD COM67074C103CEF18,879$295,645dollars as filed
RH74967X103COM2,114$295,579dollars as filed
BJS WHSL CLUB HLDGS INC COM05550J101Stock3,003$295,555dollars as filed
POST HLDGS INC737446104COM2,982$294,801dollars as filed
MOLINA HEALTHCARE INC60855R100COM2,208$294,326dollars as filed
PIMCO MUN INCOME FD II72200W106COM38,878$294,306dollars as filed
MSC INDL DIRECT INC CL A553530106Stock3,183$293,695dollars as filed
BANK HAWAII CORP062540109COM3,947$293,065dollars as filed
EATON VANCE TAX-ADVANTAGED G27828U106COM10,993$292,963dollars as filed
CARMAX INC COM143130102Stock7,038$292,640dollars as filed
EATON VANCE TAX ADVT DIV INC27828G107COM11,920$292,636dollars as filed
COLUMBIA SPORTSWEAR CO198516106COM5,328$292,028dollars as filed
OLLIES BARGAIN OUTLET HLDGS681116109COM3,167$291,491dollars as filed
NATIONAL STORAGE AFFILIATES TR COM SHS BEN IN637870106REIT7,700$290,598dollars as filed
FEDEX CORP COM31428X106Stock815$290,287dollars as filed
ENOVIS CORPORATION194014502COM12,738$289,790dollars as filed
DOUGLAS EMMETT INC25960P109COM30,718$289,364dollars as filed
VALVOLINE INC COM92047W101Stock8,591$289,345dollars as filed
MATTEL INC577081102COM19,837$288,232dollars as filed
UNUM GROUP COM91529Y106Stock3,925$286,643dollars as filed
DENTSPLY SIRONA INC24906P109COM24,669$286,160dollars as filed
BENTLEY SYS INC COM CL B08265T208Stock8,145$286,052dollars as filed
DRIVEN BRANDS HLDGS INC26210V102COM22,608$285,087dollars as filed
REXFORD INDL RLTY INC COM76169C100REIT8,687$284,326dollars as filed
INTEGRA LIFESCIENCES HLDGS C457985208COM NEW30,171$284,211dollars as filed
BLACK HAWK ACQUISITION CORPG1148A101CMN24,591$284,026dollars as filed
SILGAN HLDGS INC827048109COM7,309$283,589dollars as filed
AZENTA INC114340102COM13,400$283,142dollars as filed
MIDDLEBYCORP596278101STOK2,135$283,058dollars as filed
TELADOC HEALTH INC87918A105COM51,729$281,923dollars as filed
TRADEWEB MKTS INC CL A892672106Stock2,395$281,796dollars as filed
PERMA PIPE INTERNATIONAL HOL714167103COMMON STOCK9,442$281,466dollars as filed
WHIRLPOOL CORP COM963320106Stock5,218$281,355dollars as filed
TREX CO INC89531P105COM7,725$281,345dollars as filed
WESTERN ASSET HIGH YIELD DEF95768B107COM26,332$281,226dollars as filed
VAIL RESORTS INC COM91879Q109Stock2,182$279,994dollars as filed
LINCOLN NATL CORP IND COM534187109Stock7,872$279,456dollars as filed
FLOOR & DECOR HLDGS INC CL A339750101Stock5,472$277,978dollars as filed
MOHAWK INDS INC608190104COM2,817$277,362dollars as filed
Broadcom Inc.11135F101COM800$276,880dollars as filedput
NUTANIX INC CL A67059N108Stock7,223$274,546dollars as filed
SL GREEN RLTY CORP COM78440X887REIT7,408$273,652dollars as filed
AGEAGLE AERIAL SYS INC NEW00848K309COM SHS301,672$272,711dollars as filed
RED VIOLET INC75704L104COMMON STOCK7,863$272,060dollars as filed
NOVOCURE LTDG6674U108ORD SHS24,954$271,999dollars as filed
SYNTEC OPTICS HLDGS INC87169M113*W EXP 99/99/999250,000$270,000dollars as filed
ALASKA AIR GROUP INC COM011659109Stock7,337$269,855dollars as filed
MASIMO CORP COM574795100Stock1,511$268,762dollars as filed
SIMON PPTY GROUP INC NEW COM828806109REIT1,439$268,417dollars as filed
MARRIOTT VACATIONS WORLDWIDE C COM57164Y107Stock4,081$265,755dollars as filed
PNC FINL SVCS GROUP INC COM693475105Stock1,273$264,899dollars as filed
BUILDERS FIRSTSOURCE INC COM12008R107Stock3,209$264,197dollars as filed
Figx Cap Acquisition Corp. Unit 06/17/2030G3473K126Unit24,640$259,829dollars as filed
LIFEZONE METALS LIMITEDG5568L117WTS500,000$259,150dollars as filed
AMETEK INC COM031100100Stock1,206$258,518dollars as filed
iShares Core Dividend Growth ETF46434V621SHS3,683$258,473dollars as filed
ABERDEEN INCOME CR STRATEGIE003057106COM50,607$258,096dollars as filed
OXLEY BRIDGE ACQ LTDG6858G123UNIT 06/17/203024,642$254,305dollars as filed
INVESCO EXCHANGE TRADED FD T46137V324S&P500 EQL IND4,387$252,603dollars as filed
RINGCENTRAL INC76680R206CL A6,791$252,557dollars as filed
ISHARES RUSSELL MID-CAP VALUE ETF464287473ETF1,726$251,547dollars as filed
M3-Brigade Acquisition Vi Co Unit 08/18/2030G63221124Unit24,606$250,366dollars as filed
iShares Expanded Tech Sector ETF464287549SHS2,100$248,871dollars as filed
AXALTA COATING SYS LTD COMG0750C108Stock8,922$247,139dollars as filed
BANK OZK LITTLE ROCK ARK COM06417N103Stock5,361$246,016dollars as filed
Ithax Acquisition Corp Iii Unit 11/17/2030G4977S128Unit24,573$245,239dollars as filed
VANGUARD HEALTH CARE ETF92204A504ETF899$244,825dollars as filed
Vanguard Intermediate-Term Treasury ETF92206C706SHS4,080$242,964dollars as filed
CADENCE DESIGN SYSTEM INC COM127387108Stock866$240,635dollars as filed
BLUE GOLD LTDG1331C112*W EXP 04/01/2031,179,322$235,864dollars as filed
SHELL PLC SPON ADS780259305ADR2,533$235,569dollars as filed
WHEATON PRECIOUS METALS CORP COM962879102Stock1,793$234,901dollars as filed
ABERDEEN INDIA FD INC454089103COM20,662$233,894dollars as filed
Vanguard Mega Cap Growth ETF921910816SHS635$233,324dollars as filed
BROADRIDGE FINL SOLUTIONS INC COM11133T103Stock1,435$233,159dollars as filed
RAMACO RES INC75134P600COM CL A15,000$231,900dollars as filed
Amazon.com, Inc023135106COM1,000$230,820dollars as filedput
SPDR Portfolio S&P 500 Growth ETF78464A409SHS2,326$227,739dollars as filed
CBOE GLOBAL MKTS INC COM12503M108Stock802$225,418dollars as filed
CENTRUS ENERGY CORP15643UAE4NOTE 2.250%11/0111,000$225,055dollars as filedprincipal
SMURFIT WESTROCK PLC SHSG8267P108Stock5,627$224,236dollars as filed
BHP BILLITON LIMITED SPONSORED ADS088606108ADR3,078$223,894dollars as filed
LSI INDUSTRIES INC50216C108COMMON STOCK11,846$220,336dollars as filed
iShares iBonds Dec 2026 Term Corporate ETF46435GAA0SHS9,060$219,614dollars as filed
US FOODS HLDG CORP COM912008109Stock2,376$219,091dollars as filed
Apple Inc037833100COM800$217,488dollars as filedput
Fidelity Enhanced Large Cap Growth ETF31609A305SHS5,726$214,668dollars as filed
TRIMBLE INC COM896239100Stock3,271$213,367dollars as filed
F N B CORP302520101COM12,652$211,541dollars as filed
KKR & CO INC48251W104COM2,242$207,385dollars as filed
iShares Core S&P U.S. Value ETF464287663SHS2,013$205,829dollars as filed
FIDELITY COVINGTON TRUST316092113ENHANCED LARGE5,634$204,345dollars as filed
FIDELITY COVINGTON TRUST316092527SML MID MLTFCT4,562$204,013dollars as filed
INVESCO EXCHANGE TRADED FD T46137V241S&P500 QUALITY2,706$203,464dollars as filed
ALEANNA INC01444V111*W EXP 12/13/202250,000$202,500dollars as filed
OLD DOMINION FREIGHT LINE INC COM679580100Stock1,036$202,434dollars as filed
KRAFT HEINZ CO COM500754106Stock8,997$202,343dollars as filed
PETROLEO BRASILEIRO S A71654V408SPONSORED ADR9,700$201,275dollars as filed
DENISON MINES CORP248356107COM56,800$200,504dollars as filed
ENOVIS CORPORATION194014AB2NOTE 3.875%10/1199,000$192,813dollars as filedprincipal
AIRSHIP AI HLDGS INC008940116*W EXP 12/21/202250,000$179,825dollars as filed
APPLIED DIGITAL CORP038169AB4NOTE 2.750% 6/065,000$172,687dollars as filedprincipal
Quetta Acquisition Corp Com74841A105Common Stock14,770$168,452dollars as filed
VIATRIS INC COM92556V106Stock11,799$159,399dollars as filed
SPACSPHERE ACQUISITION CORPG8T088125UNIT 02/06/203115,000$151,050dollars as filed
NUVEEN REAL ASSET INCOME AND G67074Y105COM12,102$148,855dollars as filed
HAYMAKER ACQUISITION CORP IVG4375F116*W EXP 05/31/20250,000$147,500dollars as filed
WESTERN ASSET PREMIER BD FD957664105SHS BEN INT13,759$145,570dollars as filed
MIRUM PHARMACEUTICALS INC604749AB7NOTE 4.000% 5/047,000$140,652dollars as filedprincipal
ENERGY SVCS ACQUISITION CORP29271Q103COM10,572$138,810dollars as filed
ADVENT CONVERTIBLE AND INCOME00764C109COM12,422$138,630dollars as filed
NUVEEN AMT FREE QLTY MUN INC670657105COM12,000$134,760dollars as filed
OPTIMUM COMMUNICATIONS INC02156K103CL A82,405$107,127dollars as filed
TRAILBLAZER ACQUISITION CORPG9009S129UNIT 08/21/203010,000$101,600dollars as filed
NABORS INDS INC62957HAL9NOTE 1.750% 6/1103,000$95,138dollars as filedprincipal
Roadzen Inc W Exp 11/30/202G7606H116SPAC Combination625,000$87,500dollars as filed
GRANITE CONSTR INC387328AF4NOTE 3.250% 6/152,000$85,433dollars as filedprincipal
PEABODY ENGR CORP704551AD2NOTE 3.250% 3/046,000$84,542dollars as filedprincipal
OSI SYSTEMS INC671044AF2NOTE 2.250% 8/055,000$84,350dollars as filedprincipal
TRANSOCEAN LTD REGISTERED SHSH8817H100Stock12,450$82,544dollars as filed
Lci Inds Note 3.000 percent 3/0501812AD3Convertible66,000$79,630dollars as filedprincipal
TRANSOCEAN INC893830BW8DEB 4.625% 9/336,000$73,015dollars as filedprincipal
FUSEMACHINES INC36118R103COM SHS75,000$71,108dollars as filed
PLUG PWR INC72919P202COM NEW30,000$67,800dollars as filed
PATRICK INDS INC703343AG8NOTE 1.750%12/038,000$66,077dollars as filedprincipal
COMPUGEN LTDM25722105ORD29,500$62,835dollars as filed
ENOVIX CORPORATION COM293594107Stock11,500$59,570dollars as filed
CHEFS WHSE INC163086AE1NOTE 2.375%12/139,000$57,030dollars as filedprincipal
Andretti Acquisition Corp Ii W Exp 06/01/203G26745128SPACS Warrant412,500$54,347dollars as filed
BAIRD MED INVT HLDGS LTDG0705H111*W EXP 10/01/202500,000$52,525dollars as filed
IRONWOOD PHARMACEUTICALS INC46333X108COMMON STOCK14,520$50,965dollars as filed
Helport Ai Ltd W Exp 03/31/202G4R52R111SPAC Combination450,000$49,500dollars as filed
PTC THERAPEUTICS INC69366JAD3NOTE 1.500% 9/137,000$49,415dollars as filedprincipal
ENERGY VAULT HOLDINGS INC29280W109COM14,500$47,850dollars as filed
Silverbox Corp Iv W Exp 08/19/202G81354121SPACS Warrant166,666$47,833dollars as filed
Spectral Ai Inc W Exp 09/11/20284757T113SPAC Combination81,526$45,655dollars as filed
Brand Engagement Network Inc W Exp 03/14/202104932116SPAC Combination166,666$41,667dollars as filed
GCT SEMICONDUCTOR HLDG INC36170N115W EXP 03/01/202225,000$40,725dollars as filed
LIVEPERSON INC538146309CMN14,049$35,825dollars as filed
TEVOGEN BIO HLDGS INC88165K119*W EXP 02/14/2021,000,000$33,900dollars as filed
Rain Enhancement Technologie W Exp 12/31/20275080J111SPAC Combination166,666$32,292dollars as filed
XEROX HOLDINGS CORP98421M114*W EXP 02/11/202313,928$28,410dollars as filed
Fusemachines Inc W Exp 10/22/20336118R111SPAC Combination375,000$28,125dollars as filed
AIRJOULE TECHNOLOGIES CORP612160119*W EXP 03/15/20250,000$28,000dollars as filed
Southland Hldgs Inc W Exp 02/14/20284445C118SPAC Combination750,000$26,250dollars as filed
MURANO GLOBAL INVT PLCG63369113*W EXP 03/19/202625,000$25,000dollars as filed
BITCOIN DEPOT INC09174P113*W EXP 06/30/2021,000,000$21,200dollars as filed
Cid Holdco Inc W Exp 12/31/202171756117SPAC Combination1,000,000$20,600dollars as filed
FALCONS BEYOND GLOBAL INC306121112WTS10,000$20,400dollars as filed
OMNIAB INC68218J111*W EXP 99/99/999200,000$20,400dollars as filed
FLYEXCLUSIVE INC343928115*W EXP 99/99/99975,000$18,000dollars as filed
COINCHECK GROUP NVN20967100*W EXP 12/11/202100,000$17,000dollars as filed
Alpha Modus Hldgs Inc W Exp 12/13/202020952115SPAC Combination350,000$15,750dollars as filed
Kidz Ai Inc W Exp 04/03/203182744110SPAC Combination750,000$12,375dollars as filed
Q2 HLDGS INC74736LAD1NOTE 0.750% 6/011,000$10,895dollars as filedprincipal
SUNPOWER INC20460L112*W EXP 07/31/20242,500$10,625dollars as filed
Bridger Aerospace Grp Hldgs W Exp 01/24/20296812F110SPAC Combination25,000$9,750dollars as filed
PSYENCE BIOMEDICAL LTD74449F118*W EXP 01/22/202500,000$9,050dollars as filed
Scage Future W Exp 05/15/203G7840J118SPAC Combination183,737$8,911dollars as filed
Psq Holdings Inc W Exp 07/19/202693691115SPAC Combination200,000$8,880dollars as filed
ZOOZ STRATEGY LTDM2573A197*W EXP 04/02/202250,000$8,075dollars as filed
Envoy Medical Inc W Exp 09/29/20229415V117SPAC Combination100,000$6,640dollars as filed
Nvni Group Limited W Exp 11/01/202G50716110SPAC Combination125,000$5,944dollars as filed
Aeries Technology Inc W Exp 11/06/202G0136H110SPAC Combination289,507$5,081dollars as filed
SMX SEC MATTERS PLCG8267K117*W EXP 03/07/202100,000$4,860dollars as filed
UNITED HOMES GROUP INC91060H116*W EXP 03/30/20225,000$4,563dollars as filed
Lanzatech Global Inc W Exp 01/01/20251655R119SPAC Combination300,000$4,230dollars as filed
ALCHEMY INVTS ACQUISITN CORPG0232F133*W EXP 11/30/20225,000$4,000dollars as filed
Zeo Energy Corp W Exp 03/13/20298944F117SPAC Combination87,500$3,588dollars as filed
PRENETICS GLOBAL LTDG72245114*W EXP 05/18/202200,000$3,500dollars as filed
Keen Vision Acquisition Corp W Exp 03/15/202G52443127SPACS Warrant100,000$3,020dollars as filed
Multisensor Ai Holdings Inc W Exp 12/19/202456948116SPAC Combination75,000$2,936dollars as filed
Beneficient W Exp 06/07/20208178Q119SPAC Combination187,500$2,344dollars as filed
SPARK I ACQUISITION CORPG8316B118*W EXP 10/01/20312,384$2,229dollars as filed
LOTUS TECHNOLOGY INC54572F119W EXP 02/22/20233,333$1,667dollars as filed
Veea Inc W Exp 09/13/202693489114SPAC Combination20,000$1,501dollars as filed
Mkdwell Tech Inc W Exp 06/10/202G6209W116SPAC Combination140,000$1,470dollars as filed
Ecarx Holdings Inc W Exp 99/99/999G29201111SPAC Combination25,000$1,246dollars as filed
LANVIN GROUP HOLDINGS LIMITEG5380J118W EXP 01/14/20235,000$385dollars as filed

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001316507-26-000002this filing2026-05-04acceptance time not in the bulk data set