ALLIANT ENERGY CORP (LNT) Institutional Ownership and Insiders Activity

ALLIANT ENERGY CORP (LNT) is widely held by institutional investors, with 860 firms reporting positions valued at approximately $18.84B based on SEC Form 13F filings for the quarter ended June 30, 2026.

Blackrock, Inc. is the largest disclosed holder, reporting approximately $1.91B in LNT holdings in its latest filing.

Recent insider activity includes 1 tracked Form 4 transaction over the last three months, reflecting ongoing executive and director trading activity.