ALLIANT ENERGY CORP

Ticker: LNT CUSIP: 018802108 Class: COM

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q2 2025

Shares 619,887 Value ($000) $37,485 Avg Close $60.10 Range $55.76 - $64.19

Q1 2025

Shares 349,688 Value ($000) $22,502 Avg Close $59.57 Range $54.52 - $64.99

Q3 2024

Shares 9,493 Value ($000) $576 Avg Close $54.38 Range $48.12 - $58.63

Q1 2024

Shares 74,388 Value ($000) $4 Avg Close $46.11 Range $44.14 - $48.90

Q3 2020

Shares 32,000 Value ($000) $1,653 Avg Close $44.02 Range $39.84 - $46.94

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	619,887	$37,485	$60.10	$55.76 - $64.19
Q1 2025	349,688	$22,502	$59.57	$54.52 - $64.99
Q3 2024	9,493	$576	$54.38	$48.12 - $58.63
Q1 2024	74,388	$4	$46.11	$44.14 - $48.90
Q3 2020	32,000	$1,653	$44.02	$39.84 - $46.94