ALLIANT ENERGY CORP

Ticker: LNT CUSIP: 018802108 Class: COM

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AM's Holding History (CIK: 0001132716)

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

Q4 2025

Shares 224,205 Value ($000) $14,576 Avg Close $66.83 Range $64.30 - $69.59

Q3 2025

Shares 302,980 Value ($000) $20,424 Avg Close $63.88 Range $59.07 - $67.04

Q2 2014

Shares 234,050 Value ($000) $14,244,000 Avg Close $19.98 Range $19.02 - $21.06

Q1 2014

Shares 203,050 Value ($000) $11,535,000 Avg Close $18.07 Range $16.97 - $19.54

Q4 2013

Shares 407,872 Value ($000) $21,046,000 Avg Close $17.48 Range $16.43 - $18.23

Q3 2013

Shares 330,000 Value ($000) $16,352,000 Avg Close $17.15 Range $16.21 - $18.15

Q2 2013

Shares 307,680 Value ($000) $15,513,000 Avg Close $16.89 Range $15.60 - $17.85

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	224,205	$14,576	$66.83	$64.30 - $69.59
Q3 2025	302,980	$20,424	$63.88	$59.07 - $67.04
Q2 2014	234,050	$14,244,000	$19.98	$19.02 - $21.06
Q1 2014	203,050	$11,535,000	$18.07	$16.97 - $19.54
Q4 2013	407,872	$21,046,000	$17.48	$16.43 - $18.23
Q3 2013	330,000	$16,352,000	$17.15	$16.21 - $18.15
Q2 2013	307,680	$15,513,000	$16.89	$15.60 - $17.85