ALLIANT ENERGY CORP

Ticker: LNT CUSIP: 018802108 Class: COM

Headlands Technologies LLC's Holding History (CIK: 0001570271)

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

Q4 2025

Shares 19,783 Value ($000) $1,286 Avg Close $66.83 Range $64.30 - $69.59

Q1 2024

Shares 944 Value ($000) $48 Avg Close $46.11 Range $44.14 - $48.90

Q4 2023

Shares 7,034 Value ($000) $361 Avg Close $46.45 Range $41.77 - $50.29

Q2 2023

Shares 3,185 Value ($000) $167 Avg Close $49.05 Range $46.13 - $51.23

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	19,783	$1,286	$66.83	$64.30 - $69.59
Q1 2024	944	$48	$46.11	$44.14 - $48.90
Q4 2023	7,034	$361	$46.45	$41.77 - $50.29
Q2 2023	3,185	$167	$49.05	$46.13 - $51.23