INTERNATIONAL BUSINESS MACHS

Ticker: IBM CUSIP: 459200101 Class: COM

Calamos Advisors LLC's Holding History (CIK: 0001316507)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 115,326 Value ($000) $34,161 Avg Close $298.78 Range $262.11 - $324.90

Q3 2025

Shares 119,870 Value ($000) $33,823 Avg Close $259.55 Range $232.08 - $292.01

Q2 2025

Shares 160,205 Value ($000) $47,225 Avg Close $253.82 Range $210.49 - $292.56

Q1 2025

Shares 160,875 Value ($000) $40,003 Avg Close $239.40 Range $209.20 - $261.47

Q4 2024

Shares 169,845 Value ($000) $37,337 Avg Close $216.31 Range $196.83 - $233.32

Q3 2024

Shares 174,365 Value ($000) $38,549 Avg Close $188.97 Range $166.24 - $216.80

Q2 2024

Shares 160,343 Value ($000) $27,731 Avg Close $165.85 Range $154.39 - $183.50

Q1 2024

Shares 150,951 Value ($000) $28,826 Avg Close $172.56 Range $148.54 - $189.10

Q4 2023

Shares 129,042 Value ($000) $21,105 Avg Close $141.50 Range $126.39 - $156.49

Q3 2023

Shares 130,727 Value ($000) $18,341 Avg Close $131.75 Range $120.98 - $141.33

Q2 2023

Shares 130,727 Value ($000) $17,493 Avg Close $118.05 Range $110.47 - $128.27

Q1 2023

Shares 130,727 Value ($000) $17,137 Avg Close $120.73 Range $110.43 - $131.92

Q4 2022

Shares 147,069 Value ($000) $20,721 Avg Close $123.05 Range $102.35 - $137.32

Q3 2022

Shares 173,071 Value ($000) $20,563 Avg Close $115.64 Range $105.06 - $124.09

Q2 2022

Shares 173,071 Value ($000) $24,436 Avg Close $117.50 Range $107.95 - $126.60

Q1 2022

Shares 168,411 Value ($000) $21,897 Avg Close $112.10 Range $102.68 - $121.43

Q4 2021

Shares 145,965 Value ($000) $19,510 Avg Close $106.49 Range $97.83 - $117.62

Q3 2021

Shares 140,314 Value ($000) $19,494 Avg Close $112.12 Range $106.97 - $117.48

Q2 2021

Shares 127,933 Value ($000) $18,754 Avg Close $113.44 Range $102.70 - $121.73

Q1 2021

Shares 98,835 Value ($000) $13,171 Avg Close $98.07 Range $91.22 - $107.97

Q4 2020

Shares 95,781 Value ($000) $12,057 Avg Close $93.41 Range $81.15 - $103.82

Q3 2020

Shares 99,929 Value ($000) $12,158 Avg Close $93.86 Range $87.12 - $99.96

Q2 2020

Shares 108,699 Value ($000) $13,128 Avg Close $91.40 Range $78.00 - $102.76

Q1 2020

Shares 115,654 Value ($000) $12,829 Avg Close $98.28 Range $67.58 - $117.24

Q4 2019

Shares 125,870 Value ($000) $16,872 Avg Close $99.90 Range $95.55 - $107.55

Q3 2019

Shares 127,924 Value ($000) $18,603 Avg Close $102.47 Range $94.04 - $110.34

Q2 2019

Shares 116,986 Value ($000) $16,132 Avg Close $98.62 Range $91.51 - $103.66

Q1 2019

Shares 73,073 Value ($000) $10,311 Avg Close $94.64 Range $78.71 - $101.33

Q4 2018

Shares 72,343 Value ($000) $8,223 Avg Close $87.95 Range $74.66 - $107.42

Q3 2018

Shares 61,814 Value ($000) $9,347 Avg Close $101.25 Range $95.14 - $106.71

Q2 2018

Shares 57,907 Value ($000) $8,090 Avg Close $99.95 Range $94.63 - $110.30

Q1 2018

Shares 94,678 Value ($000) $14,527 Avg Close $107.30 Range $98.32 - $115.38

Q4 2017

Shares 90,239 Value ($000) $13,844 Avg Close $102.11 Range $96.94 - $108.49

Q3 2017

Shares 92,857 Value ($000) $13,472 Avg Close $96.87 Range $92.88 - $103.07

Q2 2017

Shares 90,259 Value ($000) $13,885 Avg Close $103.77 Range $98.95 - $115.36

Q1 2017

Shares 108,469 Value ($000) $18,889 Avg Close $114.39 Range $107.32 - $119.58

Q4 2016

Shares 108,953 Value ($000) $18,085 Avg Close $103.05 Range $95.06 - $110.31

Q3 2016

Shares 110,370 Value ($000) $17,532 Avg Close $101.76 Range $95.61 - $106.13

Q2 2016

Shares 111,504 Value ($000) $16,924 Avg Close $95.13 Range $90.08 - $99.15

Q1 2016

Shares 112,464 Value ($000) $17,033 Avg Close $84.07 Range $73.78 - $96.70

Q4 2015

Shares 105,793 Value ($000) $14,559 Avg Close $87.52 Range $82.31 - $94.87

Q3 2015

Shares 105,793 Value ($000) $15,337 Avg Close $95.35 Range $87.10 - $106.76

Q2 2015

Shares 101,858 Value ($000) $16,568 Avg Close $102.99 Range $96.57 - $107.49

Q1 2015

Shares 107,507 Value ($000) $17,255 Avg Close $96.47 Range $90.53 - $100.82

Q4 2014

Shares 113,154 Value ($000) $18,154 Avg Close $100.47 Range $91.12 - $114.79

Q3 2014

Shares 95,200 Value ($000) $18,072 Avg Close $114.33 Range $108.62 - $117.41

Q2 2014

Shares 95,200 Value ($000) $17,257 Avg Close $112.28 Range $107.17 - $118.40

Q1 2014

Shares 107,200 Value ($000) $20,635 Avg Close $109.22 Range $101.79 - $116.27

Q4 2013

Shares 107,200 Value ($000) $20,108 Avg Close $106.40 Range $101.46 - $111.01

Q3 2013

Shares 107,200 Value ($000) $19,851 Avg Close $111.55 Range $106.48 - $117.56

Q2 2013

Shares 89,200 Value ($000) $17,047 Avg Close $118.94 Range $109.29 - $125.13

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	115,326	$34,161	$298.78	$262.11 - $324.90
Q3 2025	119,870	$33,823	$259.55	$232.08 - $292.01
Q2 2025	160,205	$47,225	$253.82	$210.49 - $292.56
Q1 2025	160,875	$40,003	$239.40	$209.20 - $261.47
Q4 2024	169,845	$37,337	$216.31	$196.83 - $233.32
Q3 2024	174,365	$38,549	$188.97	$166.24 - $216.80
Q2 2024	160,343	$27,731	$165.85	$154.39 - $183.50
Q1 2024	150,951	$28,826	$172.56	$148.54 - $189.10
Q4 2023	129,042	$21,105	$141.50	$126.39 - $156.49
Q3 2023	130,727	$18,341	$131.75	$120.98 - $141.33
Q2 2023	130,727	$17,493	$118.05	$110.47 - $128.27
Q1 2023	130,727	$17,137	$120.73	$110.43 - $131.92
Q4 2022	147,069	$20,721	$123.05	$102.35 - $137.32
Q3 2022	173,071	$20,563	$115.64	$105.06 - $124.09
Q2 2022	173,071	$24,436	$117.50	$107.95 - $126.60
Q1 2022	168,411	$21,897	$112.10	$102.68 - $121.43
Q4 2021	145,965	$19,510	$106.49	$97.83 - $117.62
Q3 2021	140,314	$19,494	$112.12	$106.97 - $117.48
Q2 2021	127,933	$18,754	$113.44	$102.70 - $121.73
Q1 2021	98,835	$13,171	$98.07	$91.22 - $107.97
Q4 2020	95,781	$12,057	$93.41	$81.15 - $103.82
Q3 2020	99,929	$12,158	$93.86	$87.12 - $99.96
Q2 2020	108,699	$13,128	$91.40	$78.00 - $102.76
Q1 2020	115,654	$12,829	$98.28	$67.58 - $117.24
Q4 2019	125,870	$16,872	$99.90	$95.55 - $107.55
Q3 2019	127,924	$18,603	$102.47	$94.04 - $110.34
Q2 2019	116,986	$16,132	$98.62	$91.51 - $103.66
Q1 2019	73,073	$10,311	$94.64	$78.71 - $101.33
Q4 2018	72,343	$8,223	$87.95	$74.66 - $107.42
Q3 2018	61,814	$9,347	$101.25	$95.14 - $106.71
Q2 2018	57,907	$8,090	$99.95	$94.63 - $110.30
Q1 2018	94,678	$14,527	$107.30	$98.32 - $115.38
Q4 2017	90,239	$13,844	$102.11	$96.94 - $108.49
Q3 2017	92,857	$13,472	$96.87	$92.88 - $103.07
Q2 2017	90,259	$13,885	$103.77	$98.95 - $115.36
Q1 2017	108,469	$18,889	$114.39	$107.32 - $119.58
Q4 2016	108,953	$18,085	$103.05	$95.06 - $110.31
Q3 2016	110,370	$17,532	$101.76	$95.61 - $106.13
Q2 2016	111,504	$16,924	$95.13	$90.08 - $99.15
Q1 2016	112,464	$17,033	$84.07	$73.78 - $96.70
Q4 2015	105,793	$14,559	$87.52	$82.31 - $94.87
Q3 2015	105,793	$15,337	$95.35	$87.10 - $106.76
Q2 2015	101,858	$16,568	$102.99	$96.57 - $107.49
Q1 2015	107,507	$17,255	$96.47	$90.53 - $100.82
Q4 2014	113,154	$18,154	$100.47	$91.12 - $114.79
Q3 2014	95,200	$18,072	$114.33	$108.62 - $117.41
Q2 2014	95,200	$17,257	$112.28	$107.17 - $118.40
Q1 2014	107,200	$20,635	$109.22	$101.79 - $116.27
Q4 2013	107,200	$20,108	$106.40	$101.46 - $111.01
Q3 2013	107,200	$19,851	$111.55	$106.48 - $117.56
Q2 2013	89,200	$17,047	$118.94	$109.29 - $125.13