AUTOMATIC DATA PROCESSING IN

Ticker: ADP CUSIP: 053015103 Class: COM

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

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

Q4 2025

Shares 95,826 Value ($000) $24,649 Avg Close $264.83 Range $245.59 - $291.75

Q3 2025

Shares 99,717 Value ($000) $29,267 Avg Close $297.80 Range $280.46 - $312.33

Q2 2025

Shares 99,717 Value ($000) $30,753 Avg Close $302.36 Range $268.13 - $324.50

Q1 2025

Shares 99,717 Value ($000) $30,467 Avg Close $295.41 Range $279.29 - $315.84

Q4 2024

Shares 98,606 Value ($000) $28,865 Avg Close $287.90 Range $266.14 - $301.35

Q3 2024

Shares 98,606 Value ($000) $27,287 Avg Close $253.49 Range $223.96 - $274.02

Q2 2024

Shares 101,025 Value ($000) $24,114 Avg Close $236.61 Range $228.77 - $245.17

Q1 2024

Shares 104,712 Value ($000) $26,151 Avg Close $234.26 Range $221.78 - $245.61

Q4 2023

Shares 107,346 Value ($000) $25,008 Avg Close $222.04 Range $195.57 - $239.12

Q3 2023

Shares 108,748 Value ($000) $26,163 Avg Close $231.16 Range $204.74 - $243.17

Q2 2023

Shares 120,528 Value ($000) $26,491 Avg Close $203.27 Range $189.64 - $210.89

Q1 2023

Shares 120,528 Value ($000) $26,833 Avg Close $211.47 Range $197.72 - $230.89

Q4 2022

Shares 149,663 Value ($000) $35,749 Avg Close $228.99 Range $203.81 - $257.33

Q3 2022

Shares 175,155 Value ($000) $39,618 Avg Close $219.07 Range $190.70 - $242.63

Q2 2022

Shares 143,975 Value ($000) $30,241 Avg Close $202.51 Range $182.36 - $222.13

Q1 2022

Shares 140,098 Value ($000) $31,878 Avg Close $196.92 Range $176.60 - $227.31

Q4 2021

Shares 121,425 Value ($000) $29,941 Avg Close $207.28 Range $180.16 - $228.68

Q3 2021

Shares 116,724 Value ($000) $23,335 Avg Close $187.71 Range $179.33 - $197.68

Q2 2021

Shares 106,424 Value ($000) $21,138 Avg Close $176.27 Range $167.48 - $182.39

Q1 2021

Shares 82,218 Value ($000) $15,496 Avg Close $156.66 Range $143.60 - $175.27

Q4 2020

Shares 79,678 Value ($000) $14,039 Avg Close $147.45 Range $121.14 - $161.77

Q3 2020

Shares 83,129 Value ($000) $11,596 Avg Close $125.00 Range $114.15 - $135.97

Q2 2020

Shares 90,425 Value ($000) $13,463 Avg Close $126.99 Range $112.18 - $142.82

Q1 2020

Shares 96,211 Value ($000) $13,150 Avg Close $141.95 Range $91.30 - $160.44

Q4 2019

Shares 104,472 Value ($000) $17,812 Avg Close $145.09 Range $134.54 - $151.18

Q3 2019

Shares 106,183 Value ($000) $17,140 Avg Close $143.97 Range $136.57 - $151.98

Q2 2019

Shares 98,039 Value ($000) $16,209 Avg Close $140.97 Range $134.10 - $148.45

Q1 2019

Shares 68,115 Value ($000) $10,881 Avg Close $125.45 Range $108.70 - $138.61

Q4 2018

Shares 67,445 Value ($000) $8,843 Avg Close $121.16 Range $104.68 - $131.62

Q3 2018

Shares 57,520 Value ($000) $8,666 Avg Close $120.81 Range $110.27 - $129.74

Q1 2017

Shares 29,250 Value ($000) $2,995 Avg Close $84.40 Range $77.75 - $87.39

Q4 2016

Shares 36,550 Value ($000) $3,757 Avg Close $76.76 Range $70.20 - $85.82

Q3 2016

Shares 2,430 Value ($000) $214 Avg Close $74.09 Range $70.80 - $78.37

Q2 2016

Shares 2,430 Value ($000) $223 Avg Close $71.77 Range $68.45 - $75.00

Q1 2016

Shares 2,430 Value ($000) $218 Avg Close $67.69 Range $61.81 - $73.03

Q4 2015

Shares 2,430 Value ($000) $206 Avg Close $69.13 Range $63.10 - $72.67

Q4 2014

Shares 45,536 Value ($000) $3,796 Avg Close $63.52 Range $55.18 - $68.07

Q3 2014

Shares 45,300 Value ($000) $3,764 Avg Close $56.27 Range $54.11 - $58.19

Q2 2014

Shares 45,300 Value ($000) $3,591 Avg Close $52.86 Range $49.83 - $54.58

Q1 2014

Shares 42,000 Value ($000) $3,245 Avg Close $52.44 Range $48.53 - $56.01

Q4 2013

Shares 42,000 Value ($000) $3,394 Avg Close $51.46 Range $46.89 - $56.22

Q3 2013

Shares 42,000 Value ($000) $3,040 Avg Close $48.32 Range $45.84 - $50.27

Q2 2013

Shares 42,000 Value ($000) $2,892 Avg Close $45.09 Range $41.94 - $47.70

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	95,826	$24,649	$264.83	$245.59 - $291.75
Q3 2025	99,717	$29,267	$297.80	$280.46 - $312.33
Q2 2025	99,717	$30,753	$302.36	$268.13 - $324.50
Q1 2025	99,717	$30,467	$295.41	$279.29 - $315.84
Q4 2024	98,606	$28,865	$287.90	$266.14 - $301.35
Q3 2024	98,606	$27,287	$253.49	$223.96 - $274.02
Q2 2024	101,025	$24,114	$236.61	$228.77 - $245.17
Q1 2024	104,712	$26,151	$234.26	$221.78 - $245.61
Q4 2023	107,346	$25,008	$222.04	$195.57 - $239.12
Q3 2023	108,748	$26,163	$231.16	$204.74 - $243.17
Q2 2023	120,528	$26,491	$203.27	$189.64 - $210.89
Q1 2023	120,528	$26,833	$211.47	$197.72 - $230.89
Q4 2022	149,663	$35,749	$228.99	$203.81 - $257.33
Q3 2022	175,155	$39,618	$219.07	$190.70 - $242.63
Q2 2022	143,975	$30,241	$202.51	$182.36 - $222.13
Q1 2022	140,098	$31,878	$196.92	$176.60 - $227.31
Q4 2021	121,425	$29,941	$207.28	$180.16 - $228.68
Q3 2021	116,724	$23,335	$187.71	$179.33 - $197.68
Q2 2021	106,424	$21,138	$176.27	$167.48 - $182.39
Q1 2021	82,218	$15,496	$156.66	$143.60 - $175.27
Q4 2020	79,678	$14,039	$147.45	$121.14 - $161.77
Q3 2020	83,129	$11,596	$125.00	$114.15 - $135.97
Q2 2020	90,425	$13,463	$126.99	$112.18 - $142.82
Q1 2020	96,211	$13,150	$141.95	$91.30 - $160.44
Q4 2019	104,472	$17,812	$145.09	$134.54 - $151.18
Q3 2019	106,183	$17,140	$143.97	$136.57 - $151.98
Q2 2019	98,039	$16,209	$140.97	$134.10 - $148.45
Q1 2019	68,115	$10,881	$125.45	$108.70 - $138.61
Q4 2018	67,445	$8,843	$121.16	$104.68 - $131.62
Q3 2018	57,520	$8,666	$120.81	$110.27 - $129.74
Q1 2017	29,250	$2,995	$84.40	$77.75 - $87.39
Q4 2016	36,550	$3,757	$76.76	$70.20 - $85.82
Q3 2016	2,430	$214	$74.09	$70.80 - $78.37
Q2 2016	2,430	$223	$71.77	$68.45 - $75.00
Q1 2016	2,430	$218	$67.69	$61.81 - $73.03
Q4 2015	2,430	$206	$69.13	$63.10 - $72.67
Q4 2014	45,536	$3,796	$63.52	$55.18 - $68.07
Q3 2014	45,300	$3,764	$56.27	$54.11 - $58.19
Q2 2014	45,300	$3,591	$52.86	$49.83 - $54.58
Q1 2014	42,000	$3,245	$52.44	$48.53 - $56.01
Q4 2013	42,000	$3,394	$51.46	$46.89 - $56.22
Q3 2013	42,000	$3,040	$48.32	$45.84 - $50.27
Q2 2013	42,000	$2,892	$45.09	$41.94 - $47.70