ALLIANT ENERGY CORP

Ticker: LNT CUSIP: 018802108 Class: COM

NEUBERGER BERMAN GROUP LLC's Holding History (CIK: 0001465109)

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

Q4 2025

Shares 1,520,456 Value ($000) $98,845 Avg Close $66.83 Range $64.30 - $69.59

Q3 2025

Shares 1,651,124 Value ($000) $111,302 Avg Close $63.88 Range $59.07 - $67.04

Q2 2025

Shares 1,723,579 Value ($000) $104,225 Avg Close $60.10 Range $55.76 - $64.19

Q1 2025

Shares 1,654,801 Value ($000) $106,486 Avg Close $59.57 Range $54.52 - $64.99

Q4 2024

Shares 1,692,398 Value ($000) $100,088 Avg Close $58.37 Range $54.30 - $62.16

Q3 2024

Shares 759,872 Value ($000) $46,117 Avg Close $54.38 Range $48.12 - $58.63

Q2 2024

Shares 681,386 Value ($000) $34,683 Avg Close $47.71 Range $44.54 - $49.81

Q1 2024

Shares 655,608 Value ($000) $33,043 Avg Close $46.11 Range $44.14 - $48.90

Q4 2023

Shares 700,997 Value ($000) $35,961 Avg Close $46.45 Range $41.77 - $50.29

Q3 2023

Shares 517,158 Value ($000) $25,056 Avg Close $47.84 Range $44.23 - $51.62

Q2 2023

Shares 531,102 Value ($000) $27,872 Avg Close $49.05 Range $46.13 - $51.23

Q1 2023

Shares 539,463 Value ($000) $28,807 Avg Close $48.28 Range $45.19 - $50.77

Q4 2022

Shares 603,155 Value ($000) $33,300 Avg Close $48.07 Range $42.22 - $51.90

Q3 2022

Shares 526,416 Value ($000) $27,895 Avg Close $53.87 Range $47.25 - $57.82

Q2 2022

Shares 530,704 Value ($000) $31,105 Avg Close $53.50 Range $48.14 - $57.66

Q1 2022

Shares 493,267 Value ($000) $30,820 Avg Close $52.37 Range $48.33 - $55.78

Q4 2021

Shares 478,316 Value ($000) $29,326 Avg Close $50.05 Range $47.35 - $54.07

Q3 2021

Shares 474,482 Value ($000) $26,507 Avg Close $51.28 Range $47.64 - $54.21

Q2 2021

Shares 477,651 Value ($000) $26,583 Avg Close $48.83 Range $45.94 - $51.03

Q1 2021

Shares 505,675 Value ($000) $27,387 Avg Close $42.55 Range $39.42 - $47.06

Q4 2020

Shares 536,417 Value ($000) $27,639 Avg Close $45.61 Range $40.48 - $49.39

Q3 2020

Shares 543,957 Value ($000) $28,094 Avg Close $44.02 Range $39.84 - $46.94

Q2 2020

Shares 616,678 Value ($000) $29,501 Avg Close $40.72 Range $36.29 - $45.31

Q1 2020

Shares 695,588 Value ($000) $33,590 Avg Close $45.48 Range $31.34 - $50.16

Q4 2019

Shares 761,195 Value ($000) $41,653 Avg Close $43.82 Range $42.11 - $45.80

Q3 2019

Shares 772,464 Value ($000) $41,659 Avg Close $42.08 Range $39.53 - $44.83

Q2 2019

Shares 778,797 Value ($000) $38,223 Avg Close $38.79 Range $37.00 - $40.91

Q1 2019

Shares 794,523 Value ($000) $37,446 Avg Close $36.14 Range $32.70 - $38.77

Q4 2018

Shares 841,762 Value ($000) $35,565 Avg Close $35.19 Range $32.65 - $37.38

Q3 2018

Shares 853,697 Value ($000) $36,342 Avg Close $34.13 Range $32.72 - $35.18

Q2 2018

Shares 898,808 Value ($000) $38,037 Avg Close $32.46 Range $30.20 - $34.35

Q1 2018

Shares 829,075 Value ($000) $33,876 Avg Close $30.84 Range $28.88 - $33.21

Q4 2017

Shares 1,030,860 Value ($000) $43,925 Avg Close $33.80 Range $31.68 - $35.41

Q3 2017

Shares 1,049,699 Value ($000) $43,636 Avg Close $32.04 Range $30.14 - $33.72

Q2 2017

Shares 1,150,009 Value ($000) $46,196 Avg Close $30.93 Range $29.83 - $32.31

Q1 2017

Shares 990,763 Value ($000) $39,244 Avg Close $29.08 Range $27.58 - $30.63

Q4 2016

Shares 1,086,096 Value ($000) $41,152 Avg Close $27.74 Range $26.27 - $29.13

Q3 2016

Shares 1,114,705 Value ($000) $42,704 Avg Close $29.26 Range $27.72 - $30.41

Q2 2016

Shares 1,219,014 Value ($000) $48,395 Avg Close $27.46 Range $25.25 - $29.85

Q1 2016

Shares 628,486 Value ($000) $46,684 Avg Close $24.74 Range $22.13 - $27.34

Q4 2015

Shares 644,560 Value ($000) $40,253 Avg Close $21.84 Range $20.45 - $23.41

Q3 2015

Shares 721,599 Value ($000) $42,206 Avg Close $21.20 Range $19.59 - $22.72

Q2 2015

Shares 761,844 Value ($000) $43,974 Avg Close $21.63 Range $20.41 - $22.74

Q1 2015

Shares 846,488 Value ($000) $53,329 Avg Close $23.04 Range $21.25 - $25.01

Q4 2014

Shares 1,455,579 Value ($000) $96,679 Avg Close $21.73 Range $19.32 - $24.55

Q3 2014

Shares 1,503,429 Value ($000) $83,305 Avg Close $20.07 Range $19.08 - $21.06

Q2 2014

Shares 2,084,146 Value ($000) $126,841 Avg Close $19.98 Range $19.02 - $21.06

Q1 2014

Shares 2,095,801 Value ($000) $119,062 Avg Close $18.07 Range $16.97 - $19.54

Q4 2013

Shares 2,128,633 Value ($000) $109,838 Avg Close $17.48 Range $16.43 - $18.23

Q3 2013

Shares 2,218,347 Value ($000) $109,919 Avg Close $17.15 Range $16.21 - $18.15

Q2 2013

Shares 2,120,224 Value ($000) $106,902 Avg Close $16.89 Range $15.60 - $17.85

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,520,456	$98,845	$66.83	$64.30 - $69.59
Q3 2025	1,651,124	$111,302	$63.88	$59.07 - $67.04
Q2 2025	1,723,579	$104,225	$60.10	$55.76 - $64.19
Q1 2025	1,654,801	$106,486	$59.57	$54.52 - $64.99
Q4 2024	1,692,398	$100,088	$58.37	$54.30 - $62.16
Q3 2024	759,872	$46,117	$54.38	$48.12 - $58.63
Q2 2024	681,386	$34,683	$47.71	$44.54 - $49.81
Q1 2024	655,608	$33,043	$46.11	$44.14 - $48.90
Q4 2023	700,997	$35,961	$46.45	$41.77 - $50.29
Q3 2023	517,158	$25,056	$47.84	$44.23 - $51.62
Q2 2023	531,102	$27,872	$49.05	$46.13 - $51.23
Q1 2023	539,463	$28,807	$48.28	$45.19 - $50.77
Q4 2022	603,155	$33,300	$48.07	$42.22 - $51.90
Q3 2022	526,416	$27,895	$53.87	$47.25 - $57.82
Q2 2022	530,704	$31,105	$53.50	$48.14 - $57.66
Q1 2022	493,267	$30,820	$52.37	$48.33 - $55.78
Q4 2021	478,316	$29,326	$50.05	$47.35 - $54.07
Q3 2021	474,482	$26,507	$51.28	$47.64 - $54.21
Q2 2021	477,651	$26,583	$48.83	$45.94 - $51.03
Q1 2021	505,675	$27,387	$42.55	$39.42 - $47.06
Q4 2020	536,417	$27,639	$45.61	$40.48 - $49.39
Q3 2020	543,957	$28,094	$44.02	$39.84 - $46.94
Q2 2020	616,678	$29,501	$40.72	$36.29 - $45.31
Q1 2020	695,588	$33,590	$45.48	$31.34 - $50.16
Q4 2019	761,195	$41,653	$43.82	$42.11 - $45.80
Q3 2019	772,464	$41,659	$42.08	$39.53 - $44.83
Q2 2019	778,797	$38,223	$38.79	$37.00 - $40.91
Q1 2019	794,523	$37,446	$36.14	$32.70 - $38.77
Q4 2018	841,762	$35,565	$35.19	$32.65 - $37.38
Q3 2018	853,697	$36,342	$34.13	$32.72 - $35.18
Q2 2018	898,808	$38,037	$32.46	$30.20 - $34.35
Q1 2018	829,075	$33,876	$30.84	$28.88 - $33.21
Q4 2017	1,030,860	$43,925	$33.80	$31.68 - $35.41
Q3 2017	1,049,699	$43,636	$32.04	$30.14 - $33.72
Q2 2017	1,150,009	$46,196	$30.93	$29.83 - $32.31
Q1 2017	990,763	$39,244	$29.08	$27.58 - $30.63
Q4 2016	1,086,096	$41,152	$27.74	$26.27 - $29.13
Q3 2016	1,114,705	$42,704	$29.26	$27.72 - $30.41
Q2 2016	1,219,014	$48,395	$27.46	$25.25 - $29.85
Q1 2016	628,486	$46,684	$24.74	$22.13 - $27.34
Q4 2015	644,560	$40,253	$21.84	$20.45 - $23.41
Q3 2015	721,599	$42,206	$21.20	$19.59 - $22.72
Q2 2015	761,844	$43,974	$21.63	$20.41 - $22.74
Q1 2015	846,488	$53,329	$23.04	$21.25 - $25.01
Q4 2014	1,455,579	$96,679	$21.73	$19.32 - $24.55
Q3 2014	1,503,429	$83,305	$20.07	$19.08 - $21.06
Q2 2014	2,084,146	$126,841	$19.98	$19.02 - $21.06
Q1 2014	2,095,801	$119,062	$18.07	$16.97 - $19.54
Q4 2013	2,128,633	$109,838	$17.48	$16.43 - $18.23
Q3 2013	2,218,347	$109,919	$17.15	$16.21 - $18.15
Q2 2013	2,120,224	$106,902	$16.89	$15.60 - $17.85