ALLIANT ENERGY CORP

Ticker: LNT CUSIP: 018802108 Class: COM

Voya Investment Management LLC's Holding History (CIK: 0001068837)

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

Q4 2025

Shares 54,249 Value ($000) $3,527 Avg Close $66.83 Range $64.30 - $69.59

Q3 2025

Shares 58,848 Value ($000) $3,967 Avg Close $63.88 Range $59.07 - $67.04

Q2 2025

Shares 75,586 Value ($000) $4,571 Avg Close $60.10 Range $55.76 - $64.19

Q1 2025

Shares 77,962 Value ($000) $5,017 Avg Close $59.57 Range $54.52 - $64.99

Q4 2024

Shares 77,584 Value ($000) $4,588 Avg Close $58.37 Range $54.30 - $62.16

Q3 2024

Shares 82,326 Value ($000) $4,996 Avg Close $54.38 Range $48.12 - $58.63

Q2 2024

Shares 87,877 Value ($000) $4,473 Avg Close $47.71 Range $44.54 - $49.81

Q1 2024

Shares 83,115 Value ($000) $4,189 Avg Close $46.11 Range $44.14 - $48.90

Q4 2023

Shares 84,668 Value ($000) $4,343 Avg Close $46.45 Range $41.77 - $50.29

Q3 2023

Shares 87,219 Value ($000) $4,226 Avg Close $47.84 Range $44.23 - $51.62

Q2 2023

Shares 89,182 Value ($000) $4,680 Avg Close $49.05 Range $46.13 - $51.23

Q1 2023

Shares 91,565 Value ($000) $4,890 Avg Close $48.28 Range $45.19 - $50.77

Q4 2022

Shares 91,103 Value ($000) $5,030 Avg Close $48.07 Range $42.22 - $51.90

Q3 2022

Shares 88,830 Value ($000) $4,707 Avg Close $53.87 Range $47.25 - $57.82

Q2 2022

Shares 89,830 Value ($000) $5,265 Avg Close $53.50 Range $48.14 - $57.66

Q1 2022

Shares 93,557 Value ($000) $5,845 Avg Close $52.37 Range $48.33 - $55.78

Q4 2021

Shares 95,133 Value ($000) $5,848 Avg Close $50.05 Range $47.35 - $54.07

Q3 2021

Shares 99,003 Value ($000) $5,542 Avg Close $51.28 Range $47.64 - $54.21

Q2 2021

Shares 100,883 Value ($000) $5,625 Avg Close $48.83 Range $45.94 - $51.03

Q1 2021

Shares 102,179 Value ($000) $5,534 Avg Close $42.55 Range $39.42 - $47.06

Q4 2020

Shares 104,182 Value ($000) $5,368 Avg Close $45.61 Range $40.48 - $49.39

Q3 2020

Shares 114,004 Value ($000) $5,888 Avg Close $44.02 Range $39.84 - $46.94

Q2 2020

Shares 116,597 Value ($000) $5,578 Avg Close $40.72 Range $36.29 - $45.31

Q1 2020

Shares 112,622 Value ($000) $5,438 Avg Close $45.48 Range $31.34 - $50.16

Q4 2019

Shares 111,633 Value ($000) $6,108 Avg Close $43.82 Range $42.11 - $45.80

Q3 2019

Shares 111,234 Value ($000) $5,999 Avg Close $42.08 Range $39.53 - $44.83

Q2 2019

Shares 109,092 Value ($000) $5,354 Avg Close $38.79 Range $37.00 - $40.91

Q1 2019

Shares 105,848 Value ($000) $4,989 Avg Close $36.14 Range $32.70 - $38.77

Q4 2018

Shares 107,999 Value ($000) $4,563 Avg Close $35.19 Range $32.65 - $37.38

Q3 2018

Shares 105,487 Value ($000) $4,490 Avg Close $34.13 Range $32.72 - $35.18

Q2 2018

Shares 107,637 Value ($000) $4,555 Avg Close $32.46 Range $30.20 - $34.35

Q1 2018

Shares 118,175 Value ($000) $4,828 Avg Close $30.84 Range $28.88 - $33.21

Q4 2017

Shares 119,784 Value ($000) $5,104 Avg Close $33.80 Range $31.68 - $35.41

Q3 2017

Shares 124,239 Value ($000) $5,165 Avg Close $32.04 Range $30.14 - $33.72

Q2 2017

Shares 124,172 Value ($000) $4,988 Avg Close $30.93 Range $29.83 - $32.31

Q1 2017

Shares 127,191 Value ($000) $5,038 Avg Close $29.08 Range $27.58 - $30.63

Q4 2016

Shares 130,251 Value ($000) $4,935 Avg Close $27.74 Range $26.27 - $29.13

Q3 2016

Shares 135,336 Value ($000) $5,185 Avg Close $29.26 Range $27.72 - $30.41

Q2 2016

Shares 163,612 Value ($000) $6,495 Avg Close $27.46 Range $25.25 - $29.85

Q1 2016

Shares 48,213 Value ($000) $3,581 Avg Close $24.74 Range $22.13 - $27.34

Q4 2015

Shares 36,233 Value ($000) $2,263 Avg Close $21.84 Range $20.45 - $23.41

Q3 2015

Shares 38,193 Value ($000) $2,234 Avg Close $21.20 Range $19.59 - $22.72

Q2 2015

Shares 39,268 Value ($000) $2,266 Avg Close $21.63 Range $20.41 - $22.74

Q1 2015

Shares 40,888 Value ($000) $2,576 Avg Close $23.04 Range $21.25 - $25.01

Q4 2014

Shares 40,991 Value ($000) $2,722 Avg Close $21.73 Range $19.32 - $24.55

Q3 2014

Shares 44,729 Value ($000) $2,478 Avg Close $20.07 Range $19.08 - $21.06

Q2 2014

Shares 44,827 Value ($000) $2,728 Avg Close $19.98 Range $19.02 - $21.06

Q1 2014

Shares 70,541 Value ($000) $4,007 Avg Close $18.07 Range $16.97 - $19.54

Q4 2013

Shares 75,422 Value ($000) $3,892 Avg Close $17.48 Range $16.43 - $18.23

Q3 2013

Shares 86,236 Value ($000) $4,273 Avg Close $17.15 Range $16.21 - $18.15

Q2 2013

Shares 107,910 Value ($000) $5,440 Avg Close $16.89 Range $15.60 - $17.85

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	54,249	$3,527	$66.83	$64.30 - $69.59
Q3 2025	58,848	$3,967	$63.88	$59.07 - $67.04
Q2 2025	75,586	$4,571	$60.10	$55.76 - $64.19
Q1 2025	77,962	$5,017	$59.57	$54.52 - $64.99
Q4 2024	77,584	$4,588	$58.37	$54.30 - $62.16
Q3 2024	82,326	$4,996	$54.38	$48.12 - $58.63
Q2 2024	87,877	$4,473	$47.71	$44.54 - $49.81
Q1 2024	83,115	$4,189	$46.11	$44.14 - $48.90
Q4 2023	84,668	$4,343	$46.45	$41.77 - $50.29
Q3 2023	87,219	$4,226	$47.84	$44.23 - $51.62
Q2 2023	89,182	$4,680	$49.05	$46.13 - $51.23
Q1 2023	91,565	$4,890	$48.28	$45.19 - $50.77
Q4 2022	91,103	$5,030	$48.07	$42.22 - $51.90
Q3 2022	88,830	$4,707	$53.87	$47.25 - $57.82
Q2 2022	89,830	$5,265	$53.50	$48.14 - $57.66
Q1 2022	93,557	$5,845	$52.37	$48.33 - $55.78
Q4 2021	95,133	$5,848	$50.05	$47.35 - $54.07
Q3 2021	99,003	$5,542	$51.28	$47.64 - $54.21
Q2 2021	100,883	$5,625	$48.83	$45.94 - $51.03
Q1 2021	102,179	$5,534	$42.55	$39.42 - $47.06
Q4 2020	104,182	$5,368	$45.61	$40.48 - $49.39
Q3 2020	114,004	$5,888	$44.02	$39.84 - $46.94
Q2 2020	116,597	$5,578	$40.72	$36.29 - $45.31
Q1 2020	112,622	$5,438	$45.48	$31.34 - $50.16
Q4 2019	111,633	$6,108	$43.82	$42.11 - $45.80
Q3 2019	111,234	$5,999	$42.08	$39.53 - $44.83
Q2 2019	109,092	$5,354	$38.79	$37.00 - $40.91
Q1 2019	105,848	$4,989	$36.14	$32.70 - $38.77
Q4 2018	107,999	$4,563	$35.19	$32.65 - $37.38
Q3 2018	105,487	$4,490	$34.13	$32.72 - $35.18
Q2 2018	107,637	$4,555	$32.46	$30.20 - $34.35
Q1 2018	118,175	$4,828	$30.84	$28.88 - $33.21
Q4 2017	119,784	$5,104	$33.80	$31.68 - $35.41
Q3 2017	124,239	$5,165	$32.04	$30.14 - $33.72
Q2 2017	124,172	$4,988	$30.93	$29.83 - $32.31
Q1 2017	127,191	$5,038	$29.08	$27.58 - $30.63
Q4 2016	130,251	$4,935	$27.74	$26.27 - $29.13
Q3 2016	135,336	$5,185	$29.26	$27.72 - $30.41
Q2 2016	163,612	$6,495	$27.46	$25.25 - $29.85
Q1 2016	48,213	$3,581	$24.74	$22.13 - $27.34
Q4 2015	36,233	$2,263	$21.84	$20.45 - $23.41
Q3 2015	38,193	$2,234	$21.20	$19.59 - $22.72
Q2 2015	39,268	$2,266	$21.63	$20.41 - $22.74
Q1 2015	40,888	$2,576	$23.04	$21.25 - $25.01
Q4 2014	40,991	$2,722	$21.73	$19.32 - $24.55
Q3 2014	44,729	$2,478	$20.07	$19.08 - $21.06
Q2 2014	44,827	$2,728	$19.98	$19.02 - $21.06
Q1 2014	70,541	$4,007	$18.07	$16.97 - $19.54
Q4 2013	75,422	$3,892	$17.48	$16.43 - $18.23
Q3 2013	86,236	$4,273	$17.15	$16.21 - $18.15
Q2 2013	107,910	$5,440	$16.89	$15.60 - $17.85