ALLIANT ENERGY CORP

Ticker: LNT CUSIP: 018802108 Class: COM

COMMERCE BANK's Holding History (CIK: 0001009076)

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

Q4 2025

Shares 30,409 Value ($000) $1,977 Avg Close $66.83 Range $64.30 - $69.59

Q3 2025

Shares 31,414 Value ($000) $2,118 Avg Close $63.88 Range $59.07 - $67.04

Q2 2025

Shares 31,402 Value ($000) $1,899 Avg Close $60.10 Range $55.76 - $64.19

Q1 2025

Shares 30,964 Value ($000) $1,993 Avg Close $59.57 Range $54.52 - $64.99

Q4 2024

Shares 31,956 Value ($000) $1,890 Avg Close $58.37 Range $54.30 - $62.16

Q3 2024

Shares 30,369 Value ($000) $1,843 Avg Close $54.38 Range $48.12 - $58.63

Q2 2024

Shares 31,590 Value ($000) $1,608 Avg Close $47.71 Range $44.54 - $49.81

Q1 2024

Shares 35,081 Value ($000) $1,768 Avg Close $46.11 Range $44.14 - $48.90

Q4 2023

Shares 34,340 Value ($000) $1,762 Avg Close $46.45 Range $41.77 - $50.29

Q3 2023

Shares 26,524 Value ($000) $1,285 Avg Close $47.84 Range $44.23 - $51.62

Q2 2023

Shares 26,556 Value ($000) $1,394 Avg Close $49.05 Range $46.13 - $51.23

Q1 2023

Shares 26,727 Value ($000) $1,427 Avg Close $48.28 Range $45.19 - $50.77

Q4 2022

Shares 28,569 Value ($000) $1,577 Avg Close $48.07 Range $42.22 - $51.90

Q3 2022

Shares 26,171 Value ($000) $1,387 Avg Close $53.87 Range $47.25 - $57.82

Q2 2022

Shares 26,142 Value ($000) $1,532 Avg Close $53.50 Range $48.14 - $57.66

Q1 2022

Shares 26,102 Value ($000) $1,631 Avg Close $52.37 Range $48.33 - $55.78

Q4 2021

Shares 28,752 Value ($000) $1,768 Avg Close $50.05 Range $47.35 - $54.07

Q3 2021

Shares 28,552 Value ($000) $1,598 Avg Close $51.28 Range $47.64 - $54.21

Q2 2021

Shares 28,843 Value ($000) $1,608 Avg Close $48.83 Range $45.94 - $51.03

Q1 2021

Shares 28,994 Value ($000) $1,570 Avg Close $42.55 Range $39.42 - $47.06

Q4 2020

Shares 30,179 Value ($000) $1,555 Avg Close $45.61 Range $40.48 - $49.39

Q3 2020

Shares 28,224 Value ($000) $1,458 Avg Close $44.02 Range $39.84 - $46.94

Q2 2020

Shares 22,550 Value ($000) $1,079 Avg Close $40.72 Range $36.29 - $45.31

Q1 2020

Shares 19,884 Value ($000) $961 Avg Close $45.48 Range $31.34 - $50.16

Q4 2019

Shares 21,515 Value ($000) $1,177 Avg Close $43.82 Range $42.11 - $45.80

Q3 2019

Shares 19,952 Value ($000) $1,076 Avg Close $42.08 Range $39.53 - $44.83

Q2 2019

Shares 16,787 Value ($000) $824 Avg Close $38.79 Range $37.00 - $40.91

Q1 2019

Shares 16,787 Value ($000) $791 Avg Close $36.14 Range $32.70 - $38.77

Q4 2018

Shares 16,739 Value ($000) $707 Avg Close $35.19 Range $32.65 - $37.38

Q3 2018

Shares 16,739 Value ($000) $713 Avg Close $34.13 Range $32.72 - $35.18

Q2 2018

Shares 14,199 Value ($000) $601 Avg Close $32.46 Range $30.20 - $34.35

Q1 2018

Shares 14,071 Value ($000) $575 Avg Close $30.84 Range $28.88 - $33.21

Q4 2017

Shares 18,477 Value ($000) $788 Avg Close $33.80 Range $31.68 - $35.41

Q3 2017

Shares 18,477 Value ($000) $768 Avg Close $32.04 Range $30.14 - $33.72

Q2 2017

Shares 18,577 Value ($000) $746 Avg Close $30.93 Range $29.83 - $32.31

Q1 2017

Shares 18,577 Value ($000) $736 Avg Close $29.08 Range $27.58 - $30.63

Q4 2016

Shares 17,620 Value ($000) $668 Avg Close $27.74 Range $26.27 - $29.13

Q3 2016

Shares 17,720 Value ($000) $679 Avg Close $29.26 Range $27.72 - $30.41

Q2 2016

Shares 17,720 Value ($000) $703 Avg Close $27.46 Range $25.25 - $29.85

Q1 2016

Shares 8,860 Value ($000) $659 Avg Close $24.74 Range $22.13 - $27.34

Q4 2015

Shares 8,694 Value ($000) $543 Avg Close $21.84 Range $20.45 - $23.41

Q3 2015

Shares 8,894 Value ($000) $520 Avg Close $21.20 Range $19.59 - $22.72

Q2 2015

Shares 8,894 Value ($000) $513 Avg Close $21.63 Range $20.41 - $22.74

Q1 2015

Shares 8,694 Value ($000) $548 Avg Close $23.04 Range $21.25 - $25.01

Q4 2014

Shares 8,966 Value ($000) $595 Avg Close $21.73 Range $19.32 - $24.55

Q3 2014

Shares 8,794 Value ($000) $488 Avg Close $20.07 Range $19.08 - $21.06

Q2 2014

Shares 8,844 Value ($000) $538 Avg Close $19.98 Range $19.02 - $21.06

Q1 2014

Shares 8,944 Value ($000) $508 Avg Close $18.07 Range $16.97 - $19.54

Q4 2013

Shares 9,403 Value ($000) $485 Avg Close $17.48 Range $16.43 - $18.23

Q3 2013

Shares 9,692 Value ($000) $481 Avg Close $17.15 Range $16.21 - $18.15

Q2 2013

Shares 11,068 Value ($000) $558 Avg Close $16.89 Range $15.60 - $17.85

Q1 2013

Shares 11,068 Value ($000) $555 Avg Close $15.50 Range $14.30 - $16.60

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	30,409	$1,977	$66.83	$64.30 - $69.59
Q3 2025	31,414	$2,118	$63.88	$59.07 - $67.04
Q2 2025	31,402	$1,899	$60.10	$55.76 - $64.19
Q1 2025	30,964	$1,993	$59.57	$54.52 - $64.99
Q4 2024	31,956	$1,890	$58.37	$54.30 - $62.16
Q3 2024	30,369	$1,843	$54.38	$48.12 - $58.63
Q2 2024	31,590	$1,608	$47.71	$44.54 - $49.81
Q1 2024	35,081	$1,768	$46.11	$44.14 - $48.90
Q4 2023	34,340	$1,762	$46.45	$41.77 - $50.29
Q3 2023	26,524	$1,285	$47.84	$44.23 - $51.62
Q2 2023	26,556	$1,394	$49.05	$46.13 - $51.23
Q1 2023	26,727	$1,427	$48.28	$45.19 - $50.77
Q4 2022	28,569	$1,577	$48.07	$42.22 - $51.90
Q3 2022	26,171	$1,387	$53.87	$47.25 - $57.82
Q2 2022	26,142	$1,532	$53.50	$48.14 - $57.66
Q1 2022	26,102	$1,631	$52.37	$48.33 - $55.78
Q4 2021	28,752	$1,768	$50.05	$47.35 - $54.07
Q3 2021	28,552	$1,598	$51.28	$47.64 - $54.21
Q2 2021	28,843	$1,608	$48.83	$45.94 - $51.03
Q1 2021	28,994	$1,570	$42.55	$39.42 - $47.06
Q4 2020	30,179	$1,555	$45.61	$40.48 - $49.39
Q3 2020	28,224	$1,458	$44.02	$39.84 - $46.94
Q2 2020	22,550	$1,079	$40.72	$36.29 - $45.31
Q1 2020	19,884	$961	$45.48	$31.34 - $50.16
Q4 2019	21,515	$1,177	$43.82	$42.11 - $45.80
Q3 2019	19,952	$1,076	$42.08	$39.53 - $44.83
Q2 2019	16,787	$824	$38.79	$37.00 - $40.91
Q1 2019	16,787	$791	$36.14	$32.70 - $38.77
Q4 2018	16,739	$707	$35.19	$32.65 - $37.38
Q3 2018	16,739	$713	$34.13	$32.72 - $35.18
Q2 2018	14,199	$601	$32.46	$30.20 - $34.35
Q1 2018	14,071	$575	$30.84	$28.88 - $33.21
Q4 2017	18,477	$788	$33.80	$31.68 - $35.41
Q3 2017	18,477	$768	$32.04	$30.14 - $33.72
Q2 2017	18,577	$746	$30.93	$29.83 - $32.31
Q1 2017	18,577	$736	$29.08	$27.58 - $30.63
Q4 2016	17,620	$668	$27.74	$26.27 - $29.13
Q3 2016	17,720	$679	$29.26	$27.72 - $30.41
Q2 2016	17,720	$703	$27.46	$25.25 - $29.85
Q1 2016	8,860	$659	$24.74	$22.13 - $27.34
Q4 2015	8,694	$543	$21.84	$20.45 - $23.41
Q3 2015	8,894	$520	$21.20	$19.59 - $22.72
Q2 2015	8,894	$513	$21.63	$20.41 - $22.74
Q1 2015	8,694	$548	$23.04	$21.25 - $25.01
Q4 2014	8,966	$595	$21.73	$19.32 - $24.55
Q3 2014	8,794	$488	$20.07	$19.08 - $21.06
Q2 2014	8,844	$538	$19.98	$19.02 - $21.06
Q1 2014	8,944	$508	$18.07	$16.97 - $19.54
Q4 2013	9,403	$485	$17.48	$16.43 - $18.23
Q3 2013	9,692	$481	$17.15	$16.21 - $18.15
Q2 2013	11,068	$558	$16.89	$15.60 - $17.85
Q1 2013	11,068	$555	$15.50	$14.30 - $16.60