ALLIANT ENERGY CORP

Ticker: LNT CUSIP: 018802108 Class: COM

State of Tennessee, Department of Treasury's Holding History (CIK: 0001587973)

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

Q4 2025

Shares 72,754 Value ($000) $4,795 Avg Close $66.83 Range $64.30 - $69.59

Q3 2025

Shares 73,486 Value ($000) $4,954 Avg Close $63.88 Range $59.07 - $67.04

Q2 2025

Shares 50,380 Value ($000) $3,046 Avg Close $60.10 Range $55.76 - $64.19

Q1 2025

Shares 57,703 Value ($000) $3,713 Avg Close $59.57 Range $54.52 - $64.99

Q4 2024

Shares 66,999 Value ($000) $3,962 Avg Close $58.37 Range $54.30 - $62.16

Q3 2024

Shares 70,575 Value ($000) $4,283 Avg Close $54.38 Range $48.12 - $58.63

Q2 2024

Shares 71,790 Value ($000) $3,654 Avg Close $47.71 Range $44.54 - $49.81

Q1 2024

Shares 74,830 Value ($000) $3,771 Avg Close $46.11 Range $44.14 - $48.90

Q4 2023

Shares 190,393 Value ($000) $9,767 Avg Close $46.45 Range $41.77 - $50.29

Q3 2023

Shares 151,684 Value ($000) $7,349 Avg Close $47.84 Range $44.23 - $51.62

Q2 2023

Shares 152,333 Value ($000) $7,994 Avg Close $49.05 Range $46.13 - $51.23

Q1 2023

Shares 38,633 Value ($000) $2,063 Avg Close $48.28 Range $45.19 - $50.77

Q4 2022

Shares 37,366 Value ($000) $2 Avg Close $48.07 Range $42.22 - $51.90

Q3 2022

Shares 40,340 Value ($000) $2 Avg Close $53.87 Range $47.25 - $57.82

Q2 2022

Shares 391,297 Value ($000) $22,934 Avg Close $53.50 Range $48.14 - $57.66

Q1 2022

Shares 342,954 Value ($000) $21,427 Avg Close $52.37 Range $48.33 - $55.78

Q4 2021

Shares 402,644 Value ($000) $24,751 Avg Close $50.05 Range $47.35 - $54.07

Q3 2021

Shares 380,511 Value ($000) $21,302 Avg Close $51.28 Range $47.64 - $54.21

Q2 2021

Shares 538,601 Value ($000) $30,032 Avg Close $48.83 Range $45.94 - $51.03

Q1 2021

Shares 538,479 Value ($000) $29,164 Avg Close $42.55 Range $39.42 - $47.06

Q4 2020

Shares 589,571 Value ($000) $30,381 Avg Close $45.61 Range $40.48 - $49.39

Q3 2020

Shares 637,399 Value ($000) $32,922 Avg Close $44.02 Range $39.84 - $46.94

Q4 2019

Shares 57,260 Value ($000) $3,133 Avg Close $43.82 Range $42.11 - $45.80

Q3 2019

Shares 58,947 Value ($000) $3,179 Avg Close $42.08 Range $39.53 - $44.83

Q2 2019

Shares 54,451 Value ($000) $2,672 Avg Close $38.79 Range $37.00 - $40.91

Q1 2019

Shares 59,070 Value ($000) $2,784 Avg Close $36.14 Range $32.70 - $38.77

Q4 2018

Shares 61,141 Value ($000) $2,571 Avg Close $35.19 Range $32.65 - $37.38

Q3 2018

Shares 52,185 Value ($000) $2,222 Avg Close $34.13 Range $32.72 - $35.18

Q2 2018

Shares 55,553 Value ($000) $2,351 Avg Close $32.46 Range $30.20 - $34.35

Q1 2018

Shares 55,553 Value ($000) $2,270 Avg Close $30.84 Range $28.88 - $33.21

Q4 2017

Shares 59,811 Value ($000) $2,549 Avg Close $33.80 Range $31.68 - $35.41

Q3 2017

Shares 62,868 Value ($000) $2,613 Avg Close $32.04 Range $30.14 - $33.72

Q2 2017

Shares 62,312 Value ($000) $2,503 Avg Close $30.93 Range $29.83 - $32.31

Q1 2017

Shares 62,215 Value ($000) $2,464 Avg Close $29.08 Range $27.58 - $30.63

Q4 2016

Shares 71,013 Value ($000) $2,691 Avg Close $27.74 Range $26.27 - $29.13

Q3 2016

Shares 124,956 Value ($000) $4,787 Avg Close $29.26 Range $27.72 - $30.41

Q2 2016

Shares 144,888 Value ($000) $5,752 Avg Close $27.46 Range $25.25 - $29.85

Q1 2016

Shares 25,100 Value ($000) $1,864 Avg Close $24.74 Range $22.13 - $27.34

Q4 2015

Shares 25,100 Value ($000) $1,568 Avg Close $21.84 Range $20.45 - $23.41

Q3 2015

Shares 25,100 Value ($000) $1,468 Avg Close $21.20 Range $19.59 - $22.72

Q2 2015

Shares 25,100 Value ($000) $1,449 Avg Close $21.63 Range $20.41 - $22.74

Q1 2015

Shares 25,100 Value ($000) $1,581 Avg Close $23.04 Range $21.25 - $25.01

Q4 2014

Shares 25,100 Value ($000) $1,667 Avg Close $21.73 Range $19.32 - $24.55

Q3 2014

Shares 26,200 Value ($000) $1,452 Avg Close $20.07 Range $19.08 - $21.06

Q2 2014

Shares 26,200 Value ($000) $1,595 Avg Close $19.98 Range $19.02 - $21.06

Q1 2014

Shares 46,700 Value ($000) $2,653 Avg Close $18.07 Range $16.97 - $19.54

Q4 2013

Shares 30,000 Value ($000) $1,548 Avg Close $17.48 Range $16.43 - $18.23

Q3 2013

Shares 80,000 Value ($000) $3,964 Avg Close $17.15 Range $16.21 - $18.15

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	72,754	$4,795	$66.83	$64.30 - $69.59
Q3 2025	73,486	$4,954	$63.88	$59.07 - $67.04
Q2 2025	50,380	$3,046	$60.10	$55.76 - $64.19
Q1 2025	57,703	$3,713	$59.57	$54.52 - $64.99
Q4 2024	66,999	$3,962	$58.37	$54.30 - $62.16
Q3 2024	70,575	$4,283	$54.38	$48.12 - $58.63
Q2 2024	71,790	$3,654	$47.71	$44.54 - $49.81
Q1 2024	74,830	$3,771	$46.11	$44.14 - $48.90
Q4 2023	190,393	$9,767	$46.45	$41.77 - $50.29
Q3 2023	151,684	$7,349	$47.84	$44.23 - $51.62
Q2 2023	152,333	$7,994	$49.05	$46.13 - $51.23
Q1 2023	38,633	$2,063	$48.28	$45.19 - $50.77
Q4 2022	37,366	$2	$48.07	$42.22 - $51.90
Q3 2022	40,340	$2	$53.87	$47.25 - $57.82
Q2 2022	391,297	$22,934	$53.50	$48.14 - $57.66
Q1 2022	342,954	$21,427	$52.37	$48.33 - $55.78
Q4 2021	402,644	$24,751	$50.05	$47.35 - $54.07
Q3 2021	380,511	$21,302	$51.28	$47.64 - $54.21
Q2 2021	538,601	$30,032	$48.83	$45.94 - $51.03
Q1 2021	538,479	$29,164	$42.55	$39.42 - $47.06
Q4 2020	589,571	$30,381	$45.61	$40.48 - $49.39
Q3 2020	637,399	$32,922	$44.02	$39.84 - $46.94
Q4 2019	57,260	$3,133	$43.82	$42.11 - $45.80
Q3 2019	58,947	$3,179	$42.08	$39.53 - $44.83
Q2 2019	54,451	$2,672	$38.79	$37.00 - $40.91
Q1 2019	59,070	$2,784	$36.14	$32.70 - $38.77
Q4 2018	61,141	$2,571	$35.19	$32.65 - $37.38
Q3 2018	52,185	$2,222	$34.13	$32.72 - $35.18
Q2 2018	55,553	$2,351	$32.46	$30.20 - $34.35
Q1 2018	55,553	$2,270	$30.84	$28.88 - $33.21
Q4 2017	59,811	$2,549	$33.80	$31.68 - $35.41
Q3 2017	62,868	$2,613	$32.04	$30.14 - $33.72
Q2 2017	62,312	$2,503	$30.93	$29.83 - $32.31
Q1 2017	62,215	$2,464	$29.08	$27.58 - $30.63
Q4 2016	71,013	$2,691	$27.74	$26.27 - $29.13
Q3 2016	124,956	$4,787	$29.26	$27.72 - $30.41
Q2 2016	144,888	$5,752	$27.46	$25.25 - $29.85
Q1 2016	25,100	$1,864	$24.74	$22.13 - $27.34
Q4 2015	25,100	$1,568	$21.84	$20.45 - $23.41
Q3 2015	25,100	$1,468	$21.20	$19.59 - $22.72
Q2 2015	25,100	$1,449	$21.63	$20.41 - $22.74
Q1 2015	25,100	$1,581	$23.04	$21.25 - $25.01
Q4 2014	25,100	$1,667	$21.73	$19.32 - $24.55
Q3 2014	26,200	$1,452	$20.07	$19.08 - $21.06
Q2 2014	26,200	$1,595	$19.98	$19.02 - $21.06
Q1 2014	46,700	$2,653	$18.07	$16.97 - $19.54
Q4 2013	30,000	$1,548	$17.48	$16.43 - $18.23
Q3 2013	80,000	$3,964	$17.15	$16.21 - $18.15