ALLIANT ENERGY CORP

Ticker: LNT CUSIP: 018802108 Class: COM

BIRCHBROOK, INC.'s Holding History (CIK: 0002071468)

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

Q4 2025

Shares 230 Value ($000) $15 Avg Close $66.83 Range $64.30 - $69.59

Q3 2025

Shares 230 Value ($000) $16 Avg Close $63.88 Range $59.07 - $67.04

Q2 2025

Shares 230 Value ($000) $14 Avg Close $60.10 Range $55.76 - $64.19

Q1 2025

Shares 230 Value ($000) $15 Avg Close $59.57 Range $54.52 - $64.99

Q4 2024

Shares 230 Value ($000) $14 Avg Close $58.37 Range $54.30 - $62.16

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	230	$15	$66.83	$64.30 - $69.59
Q3 2025	230	$16	$63.88	$59.07 - $67.04
Q2 2025	230	$14	$60.10	$55.76 - $64.19
Q1 2025	230	$15	$59.57	$54.52 - $64.99
Q4 2024	230	$14	$58.37	$54.30 - $62.16