Cortina Ignacio A 4
4 · ALLIANT ENERGY CORP · Filed Jan 12, 2026
Insider Transaction Report
Form 4
Cortina Ignacio A
Director
Transactions
- Award
Deferred Common Stock Units
[F1][F2]2026-01-09$65.02/sh+749.769$48,750→ 9,489.019 totalExercise: $0.00→ Deferred Common Stock (749.769 underlying)
Footnotes (2)
- [F1]Units are to be settled in shares of common stock upon the reporting person's termination of services as a director.
- [F2]Includes adjustments for accrued dividends, pursuant to a dividend reinvestment transaction exempt from Section 16 under Rule 16a-11.
Signature
/s/ Jake C. Blavat, Attorney-in-Fact|2026-01-12