NPORT-P false 0000826732 XXXXXXXX S000081268 C000243950 C000243951 C000243949 CALAMOS INVESTMENT TRUST/IL 811-05443 0000826732 3MM2UW658H6KOU4WEW86 2020 CALAMOS COURT C/O CALAMOS ADVISORS LLC NAPERVILLE 60563 630-245-7200 Calamos Merger Arbitrage Fund S000081268 5493000KIMK2YSAPJF63 2024-10-31 2024-04-30 N 2855285.92 782725.85 2072560.07 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 823506.01000000 USD N Securities Portfolio VaR Designated Reference Portfolio is the Fund`s Securities Portfolio Amedisys Inc 5299001RBS9GK9STN379 023436108 1446.00000000 NS USD 133104.30000000 6.422216751478 Long EC CORP US N 1 N N N Chevron Corp N/A 166764100 -1132.00000000 NS USD -182557.64000000 -8.80831598767 Short EC CORP US N 1 N N N Quetta Acquisition Corp N/A 74841A113 23.00000000 NS USD 31.97000000 0.001542536714 N/A DE US N 2 N/A N/A Quetta Acquisition Corp Quetta Acquisition Corp 2024-11-30 XXXX -6.95000000 N N N Hess Corp UASVRYNXNK17ULIGK870 42809H107 1105.00000000 NS USD 174026.45000000 8.396690282660 Long EC CORP US N 1 N N N CONTRA MIRATI THERAPEU 529900GYRW59IDQV6N54 604CVR027 755.00000000 NS USD 755.00000000 0.036428377200 N/A DE US N 3 N/A N/A Mirati Therapeutics, Inc. Mirati Therapeutics, Inc. 2499-12-31 XXXX 226.50000000 N N N MODEL N INC 549300WCIL3W0EYSBN94 607525AB8 25000.00000000 PA USD 25457.25000000 1.228299742356 Long DBT CORP US N 2 2025-06-01 Fixed 2.63000000 N N N N Y Model N, Inc. USD XXXX N N N Spirit Airlines Inc 549300DCAFIXFNFR3304 848577102 500.00000000 NS USD 1765.00000000 0.085160378487 Long EC CORP US N 1 N N N United States Steel Corp JNLUVFYJT1OZSIQ24U47 912909108 1660.00000000 NS USD 60590.00000000 2.923437582197 Long EC CORP US N 1 N N N Options Clearing Corp. 549300CII6SLYGKNHA04 000000000 -2.00000000 NC USD -545.00000000 -0.02629598089 N/A DE US N 1 Options Clearing Corp. 549300CII6SLYGKNHA04 Call Written PNM Resources, Inc. PNM Resources, Inc. 100.00000000 35.00000000 USD 2024-05-17 XXXX 203.92000000 N N N Ai Transportation Acquisition Corp N/A 000000000 327.00000000 NS USD 52.32000000 0.002524414165 N/A DE KY N 2 N/A N/A Ai Transportation Acquisition Corp. 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Spirit Airlines, Inc. 100.00000000 7.50000000 USD 2024-06-21 XXXX 1020.81000000 N N N Capri Holdings Ltd 549300LPG8W0H1OX3A26 000000000 2423.00000000 NS USD 85968.04000000 4.147915481166 Long EC CORP VG N 1 N N N Everest Consolidator Acquisition Corp N/A 29978K102 7970.00000000 NS USD 89582.80000000 4.322325866289 Long EC CORP US N 1 N N N ALTERYX INC 549300XWZG0JHL7I0827 02156BAF0 44000.00000000 PA USD 43859.64000000 2.116205973224 Long DBT CORP US N 2 2026-08-01 Fixed 1.00000000 N N N N Y Alteryx Inc USD XXXX N N N Exxon Mobil Corp J3WHBG0MTS7O8ZVMDC91 30231G102 -1980.00000000 NS USD -234174.60000000 -11.2988088205 Short EC CORP US N 1 N N N iRobot Corp 5493009PRNKOUKBAT390 462726100 400.00000000 NS USD 3424.00000000 0.165206309315 Long EC CORP US N 1 N N N EQT Corp 4NT01YGM4X7ZX86ISY52 26884L109 -2674.00000000 NS USD -107200.66000000 -5.17237891203 Short EC CORP US N 1 N N N Enerplus Corp 549300OEXJU0X6FYBQ42 292766102 4911.00000000 NS USD 96157.38000000 4.639546104929 Long EC CORP CA N 1 N N N Chord Energy Corp 529900FA4V2YNIKZ0M71 674215207 -497.00000000 NS USD -87959.06000000 -4.24398121305 Short EC CORP US N 1 N N N Albertsons Cos Inc 549300YKWOC0AOR16R51 013091103 6276.00000000 NS USD 128030.40000000 6.177403581841 Long EC CORP US N 1 N N N Quetta Acquisition Corp N/A 74841A105 230.00000000 NS USD 2355.20000000 0.113637237062 Long EC CORP US N 1 N N N Options Clearing Corp. 549300CII6SLYGKNHA04 000000000 16.00000000 NC USD 240.00000000 0.011579881494 N/A DE US N 1 Options Clearing Corp. 549300CII6SLYGKNHA04 Call Purchased Shockwave Medical, Inc. Shockwave Medical, Inc. 100.00000000 340.00000000 USD 2024-05-17 XXXX -101.28000000 N N N SHIFT4 PAYMENTS INC N/A 82452JAD1 88000.00000000 PA USD 78647.36000000 3.794696285932 Long DBT CORP US N 2 2027-08-01 Fixed 0.50000000 N N N N Y Shift4 Payments Inc USD XXXX N N N Generation Asia I Acquisition Ltd N/A 000000000 200.00000000 NS USD 2214.00000000 0.106824406783 Long EC CORP KY N 1 N N N BLACKLINE INC 529900P9N7PK9LV5EK56 09239BAD1 33000.00000000 PA USD 29689.44000000 1.432500820108 Long DBT CORP US N 2 2026-03-15 None 0.00000000 N N N N Y Blackline Inc USD XXXX N N N Juniper Networks Inc AUHIXNGG7U2U7JEHM527 48203R104 4215.00000000 NS USD 146766.30000000 7.081401505530 Long EC CORP US N 1 N N N Black Hawk Acquisition Corp N/A 000000000 409.00000000 NS USD 4212.70000000 0.203260694875 Long EC CORP KY N 1 N N N Equitrans Midstream Corp 549300RH0NLJNZ5SXU64 294600101 7635.00000000 NS USD 103301.55000000 4.984248779819 Long EC CORP US N 1 N N N PNM Resources Inc 5493003JOBJGLZSDDQ28 69349H107 1791.00000000 NS USD 66374.46000000 3.202534920978 Long EC CORP US N 1 N N N CEREVEL THERAP HLDS INC 254900RJNIRS9COSQR41 15678UAA0 58000.00000000 PA USD 65317.28000000 3.151526507986 Long DBT CORP US N 2 2027-08-15 Fixed 2.50000000 N N N N Y Cerevel Therapeutics Holdings Inc USD XXXX N N N EVERBRIDGE INC 549300WCY0UMR64ATW81 29978AAE4 40000.00000000 PA USD 39446.80000000 1.903288622172 Long DBT CORP US N 2 2026-03-15 None 0.00000000 N N N N Y Everbridge Inc USD XXXX N N N Shockwave Medical Inc 549300LDXO56IC5Y1538 82489T104 7.00000000 NS USD 2311.33000000 0.111520531223 Long EC CORP US N 1 N N N Chesapeake Energy Corp X2MT1W32SPAZ9WSKLE78 165167735 -591.00000000 NS USD -53119.08000000 -2.56296938114 Short EC CORP US N 1 N N N Pioneer Natural Resources Co FY8JBF7CCL2VE4F1B628 723787107 853.00000000 NS USD 229729.96000000 11.08435713518 Long EC CORP US N 1 N N N ALTERYX INC 549300XWZG0JHL7I0827 02156BAD5 31000.00000000 PA USD 30889.33000000 1.490394920133 Long DBT CORP US N 2 2024-08-01 Fixed 0.50000000 N N N N Y Alteryx Inc USD XXXX N N N Ai Transportation Acquisition Corp N/A 000000000 327.00000000 NS USD 3371.37000000 0.162666937803 Long EC CORP KY N 1 N N N Twilio Inc 5493004W8TRGD63APX93 90138F102 78.00000000 NS USD 4670.64000000 0.225356073756 Long EC CORP US N 1 N N N TEGNA Inc 549300YC5EDBGX85AO10 87901J105 1181.00000000 NS USD 16108.84000000 0.777243575864 Long EC CORP US N 1 N N N TECHTARGET INC 529900YQA5JL2H2VMB84 87874RAD2 91000.00000000 PA USD 86812.18000000 4.188644819351 Long DBT CORP US N 2 2026-12-15 None 0.00000000 N N N N Y TechTarget, Inc. USD XXXX N N N Spark I Acquisition Corp N/A 000000000 115.00000000 NS USD 20.70000000 0.000998764778 N/A DE KY N 2 N/A N/A Call Purchased Spark I Acquisition Corp. Spark I Acquisition Corp. 1.00000000 11.50000000 USD 2028-11-27 XXXX 4.45000000 N N N Southwestern Energy Co EFWMP121W54QV9MGOP87 845467109 6819.00000000 NS USD 51074.31000000 2.464310238303 Long EC CORP US N 1 N N N SHOCKWAVE MEDICAL INC 549300LDXO56IC5Y1538 82489TAA2 78000.00000000 PA USD 99134.10000000 4.783171375100 Long DBT CORP US N 2 2028-08-15 Fixed 1.00000000 N N N N N Shockwave Medical, Inc. USD XXXX N N N Four Leaf Acquisition Corp N/A 35088F107 1500.00000000 NS USD 16260.00000000 0.784536971225 Long EC CORP US N 1 N N N Blackbaud Inc 54930056X3HKFMNG3754 09227Q100 5.00000000 NS USD 389.60000000 0.018798007625 Long EC CORP US N 1 N N N Spark I Acquisition Corp N/A 000000000 231.00000000 NS USD 2383.92000000 0.115022962880 Long EC CORP KY N 1 N N N 2024-06-28 CALAMOS INVESTMENT TRUST/IL Stephen Atkins Stephen Atkins Treasurer