ALLIANT ENERGY CORP

Ticker: LNT CUSIP: 018802108 Class: COM

STEPHENS INC /AR/'s Holding History (CIK: 0000757657)

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

Q4 2025

Shares 25,604 Value ($000) $1,665 Avg Close $66.83 Range $64.30 - $69.59

Q3 2025

Shares 25,179 Value ($000) $1,697 Avg Close $63.88 Range $59.07 - $67.04

Q2 2025

Shares 25,399 Value ($000) $1,536 Avg Close $60.10 Range $55.76 - $64.19

Q1 2025

Shares 26,304 Value ($000) $1,693 Avg Close $59.57 Range $54.52 - $64.99

Q4 2024

Shares 30,413 Value ($000) $1,799 Avg Close $58.37 Range $54.30 - $62.16

Q3 2024

Shares 163,497 Value ($000) $9,923 Avg Close $54.38 Range $48.12 - $58.63

Q2 2024

Shares 157,173 Value ($000) $8,000 Avg Close $47.71 Range $44.54 - $49.81

Q1 2024

Shares 146,747 Value ($000) $7,396 Avg Close $46.11 Range $44.14 - $48.90

Q4 2023

Shares 135,416 Value ($000) $6,947 Avg Close $46.45 Range $41.77 - $50.29

Q3 2023

Shares 132,062 Value ($000) $6,398 Avg Close $47.84 Range $44.23 - $51.62

Q2 2023

Shares 117,585 Value ($000) $6,171 Avg Close $49.05 Range $46.13 - $51.23

Q1 2023

Shares 104,049 Value ($000) $5,556 Avg Close $48.28 Range $45.19 - $50.77

Q4 2022

Shares 89,261 Value ($000) $4,928 Avg Close $48.07 Range $42.22 - $51.90

Q3 2022

Shares 104,843 Value ($000) $5,556 Avg Close $53.87 Range $47.25 - $57.82

Q2 2022

Shares 85,659 Value ($000) $5,020 Avg Close $53.50 Range $48.14 - $57.66

Q1 2022

Shares 92,499 Value ($000) $5,779 Avg Close $52.37 Range $48.33 - $55.78

Q4 2021

Shares 94,583 Value ($000) $5,814 Avg Close $50.05 Range $47.35 - $54.07

Q3 2021

Shares 87,397 Value ($000) $4,892 Avg Close $51.28 Range $47.64 - $54.21

Q2 2021

Shares 86,207 Value ($000) $4,807 Avg Close $48.83 Range $45.94 - $51.03

Q1 2021

Shares 83,691 Value ($000) $4,533 Avg Close $42.55 Range $39.42 - $47.06

Q4 2020

Shares 87,119 Value ($000) $4,489 Avg Close $45.61 Range $40.48 - $49.39

Q3 2020

Shares 89,474 Value ($000) $4,621 Avg Close $44.02 Range $39.84 - $46.94

Q2 2020

Shares 92,760 Value ($000) $4,438 Avg Close $40.72 Range $36.29 - $45.31

Q1 2020

Shares 85,741 Value ($000) $4,140 Avg Close $45.48 Range $31.34 - $50.16

Q4 2019

Shares 84,321 Value ($000) $4,614 Avg Close $43.82 Range $42.11 - $45.80

Q3 2019

Shares 82,465 Value ($000) $4,447 Avg Close $42.08 Range $39.53 - $44.83

Q2 2019

Shares 78,974 Value ($000) $3,876 Avg Close $38.79 Range $37.00 - $40.91

Q1 2019

Shares 77,265 Value ($000) $3,642 Avg Close $36.14 Range $32.70 - $38.77

Q4 2018

Shares 81,687 Value ($000) $3,451 Avg Close $35.19 Range $32.65 - $37.38

Q3 2018

Shares 80,116 Value ($000) $3,411 Avg Close $34.13 Range $32.72 - $35.18

Q2 2018

Shares 76,981 Value ($000) $3,258 Avg Close $32.46 Range $30.20 - $34.35

Q1 2018

Shares 72,446 Value ($000) $2,960 Avg Close $30.84 Range $28.88 - $33.21

Q4 2017

Shares 70,614 Value ($000) $3,009 Avg Close $33.80 Range $31.68 - $35.41

Q3 2017

Shares 67,084 Value ($000) $2,789 Avg Close $32.04 Range $30.14 - $33.72

Q2 2017

Shares 61,355 Value ($000) $2,465 Avg Close $30.93 Range $29.83 - $32.31

Q1 2017

Shares 58,015 Value ($000) $2,298 Avg Close $29.08 Range $27.58 - $30.63

Q4 2016

Shares 53,593 Value ($000) $2,031 Avg Close $27.74 Range $26.27 - $29.13

Q3 2016

Shares 47,898 Value ($000) $1,835 Avg Close $29.26 Range $27.72 - $30.41

Q2 2016

Shares 46,687 Value ($000) $1,853 Avg Close $27.46 Range $25.25 - $29.85

Q1 2016

Shares 23,926 Value ($000) $1,777 Avg Close $24.74 Range $22.13 - $27.34

Q4 2015

Shares 24,072 Value ($000) $1,503 Avg Close $21.84 Range $20.45 - $23.41

Q3 2015

Shares 24,228 Value ($000) $1,417 Avg Close $21.20 Range $19.59 - $22.72

Q2 2015

Shares 23,786 Value ($000) $1,373 Avg Close $21.63 Range $20.41 - $22.74

Q1 2015

Shares 19,034 Value ($000) $1,199 Avg Close $23.04 Range $21.25 - $25.01

Q4 2014

Shares 14,662 Value ($000) $974 Avg Close $21.73 Range $19.32 - $24.55

Q3 2014

Shares 14,327 Value ($000) $794 Avg Close $20.07 Range $19.08 - $21.06

Q2 2014

Shares 9,160 Value ($000) $557 Avg Close $19.98 Range $19.02 - $21.06

Q1 2014

Shares 6,786 Value ($000) $386 Avg Close $18.07 Range $16.97 - $19.54

Q4 2013

Shares 5,556 Value ($000) $287 Avg Close $17.48 Range $16.43 - $18.23

Q3 2013

Shares 5,347 Value ($000) $265 Avg Close $17.15 Range $16.21 - $18.15

Q2 2013

Shares 5,172 Value ($000) $261 Avg Close $16.89 Range $15.60 - $17.85

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	25,604	$1,665	$66.83	$64.30 - $69.59
Q3 2025	25,179	$1,697	$63.88	$59.07 - $67.04
Q2 2025	25,399	$1,536	$60.10	$55.76 - $64.19
Q1 2025	26,304	$1,693	$59.57	$54.52 - $64.99
Q4 2024	30,413	$1,799	$58.37	$54.30 - $62.16
Q3 2024	163,497	$9,923	$54.38	$48.12 - $58.63
Q2 2024	157,173	$8,000	$47.71	$44.54 - $49.81
Q1 2024	146,747	$7,396	$46.11	$44.14 - $48.90
Q4 2023	135,416	$6,947	$46.45	$41.77 - $50.29
Q3 2023	132,062	$6,398	$47.84	$44.23 - $51.62
Q2 2023	117,585	$6,171	$49.05	$46.13 - $51.23
Q1 2023	104,049	$5,556	$48.28	$45.19 - $50.77
Q4 2022	89,261	$4,928	$48.07	$42.22 - $51.90
Q3 2022	104,843	$5,556	$53.87	$47.25 - $57.82
Q2 2022	85,659	$5,020	$53.50	$48.14 - $57.66
Q1 2022	92,499	$5,779	$52.37	$48.33 - $55.78
Q4 2021	94,583	$5,814	$50.05	$47.35 - $54.07
Q3 2021	87,397	$4,892	$51.28	$47.64 - $54.21
Q2 2021	86,207	$4,807	$48.83	$45.94 - $51.03
Q1 2021	83,691	$4,533	$42.55	$39.42 - $47.06
Q4 2020	87,119	$4,489	$45.61	$40.48 - $49.39
Q3 2020	89,474	$4,621	$44.02	$39.84 - $46.94
Q2 2020	92,760	$4,438	$40.72	$36.29 - $45.31
Q1 2020	85,741	$4,140	$45.48	$31.34 - $50.16
Q4 2019	84,321	$4,614	$43.82	$42.11 - $45.80
Q3 2019	82,465	$4,447	$42.08	$39.53 - $44.83
Q2 2019	78,974	$3,876	$38.79	$37.00 - $40.91
Q1 2019	77,265	$3,642	$36.14	$32.70 - $38.77
Q4 2018	81,687	$3,451	$35.19	$32.65 - $37.38
Q3 2018	80,116	$3,411	$34.13	$32.72 - $35.18
Q2 2018	76,981	$3,258	$32.46	$30.20 - $34.35
Q1 2018	72,446	$2,960	$30.84	$28.88 - $33.21
Q4 2017	70,614	$3,009	$33.80	$31.68 - $35.41
Q3 2017	67,084	$2,789	$32.04	$30.14 - $33.72
Q2 2017	61,355	$2,465	$30.93	$29.83 - $32.31
Q1 2017	58,015	$2,298	$29.08	$27.58 - $30.63
Q4 2016	53,593	$2,031	$27.74	$26.27 - $29.13
Q3 2016	47,898	$1,835	$29.26	$27.72 - $30.41
Q2 2016	46,687	$1,853	$27.46	$25.25 - $29.85
Q1 2016	23,926	$1,777	$24.74	$22.13 - $27.34
Q4 2015	24,072	$1,503	$21.84	$20.45 - $23.41
Q3 2015	24,228	$1,417	$21.20	$19.59 - $22.72
Q2 2015	23,786	$1,373	$21.63	$20.41 - $22.74
Q1 2015	19,034	$1,199	$23.04	$21.25 - $25.01
Q4 2014	14,662	$974	$21.73	$19.32 - $24.55
Q3 2014	14,327	$794	$20.07	$19.08 - $21.06
Q2 2014	9,160	$557	$19.98	$19.02 - $21.06
Q1 2014	6,786	$386	$18.07	$16.97 - $19.54
Q4 2013	5,556	$287	$17.48	$16.43 - $18.23
Q3 2013	5,347	$265	$17.15	$16.21 - $18.15
Q2 2013	5,172	$261	$16.89	$15.60 - $17.85