Alliant Energy Ownership & Insider Activity

Alliant Energy (LNT) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 0.6% of shares outstanding. Institutional investors hold 77.7%.

Shares Outstanding

259.362M

Shares Float

226.734M

Insider Shares Owned

1.430M

Insider % Owned

0.6%

Institutional Shares Held

201.586M

Institutional % Held

77.7%

Ownership Breakdown

Congressional Trading Activity

Date	Member	Party	Chamber	Action	Amount
Oct 20, 2026	Gilbert Ray Cisneros	D	House	Purchase	$1,001 - $15,000
Aug 13, 2025	Lisa McClain	R	House	Sale	$1,001 - $15,000
Aug 4, 2025	Lisa McClain	R	House	Purchase	$1,001 - $15,000