Stephanie Cox - 10 Oct 2025 Form 4 Insider Report for ALLIANT ENERGY CORP (LNT)

Role
Director
Signature
/s/ Jake C. Blavat, Attorney-in-Fact
Issuer symbol
LNT
Transactions as of
10 Oct 2025
Net transactions value
+$72,500
Form type
4
Filing time
14 Oct 2025, 14:09:06 UTC
Previous filing
15 Jul 2025
Next filing
12 Jan 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Cox Stephanie Director C/O ALLIANT ENERGY CORPORATION, 4902 N. BILTMORE LANE, MADISON /s/ Jake C. Blavat, Attorney-in-Fact 14 Oct 2025 0001463371

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction LNT Deferred Common Stock Units Award $72,500 +1,070 +7.2% $67.75 15,848 10 Oct 2025 Common Stock 1,070 $0.000000 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
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.