Director receives deferred stock units at Alliant Energy (LNT)

Rhea-AI Filing Summary

Falotico Nancy Joy reported acquisition or exercise transactions in this Form 4 filing.

ALLIANT ENERGY CORP director Nancy Joy Falotico received a grant of 778.044 Deferred Common Stock Units, tied to an equivalent number of common shares at a reference price of $73.10 per unit. These units will be settled in common stock when she leaves the board.

The holding now totals 19,630.248 Deferred Common Stock Units, reflecting both the new grant and prior balances, including adjustments for accrued dividends through a dividend reinvestment mechanism.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Falotico Nancy Joy

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Deferred Common Stock Units	778.044	$73.10	$57K

Holdings After Transaction: Deferred Common Stock Units — 19,630.248 shares (Direct)

Footnotes (1)

1. Units are to be settled in shares of common stock upon the reporting person's termination of services as a director. Includes adjustments for accrued dividends, pursuant to a dividend reinvestment transaction exempt from Section 16 under Rule 16a-11.

Key Figures

Deferred units granted: 778.044 units Reference price per unit: $73.10 per unit Total deferred units after grant: 19,630.248 units +1 more

4 metrics

Deferred units granted 778.044 units Deferred Common Stock Units awarded on April 10, 2026

Reference price per unit $73.10 per unit Price associated with the deferred unit grant

Total deferred units after grant 19,630.248 units Director’s Deferred Common Stock Units following the transaction

Underlying common shares 778.044 shares Common stock underlying the new deferred units

Key Terms

Deferred Common Stock Units, dividend reinvestment transaction, Rule 16a-11

3 terms

Deferred Common Stock Units financial

"security_title: "Deferred Common Stock Units""

Deferred common stock units are promises to deliver company shares or cash tied to the company’s stock value at a later date, typically used as part of employee or executive pay. Think of them like a paycheck you elect to receive in company stock at a future date; they can affect the number of shares outstanding and company expenses, so investors watch them for potential dilution and to understand management’s incentives.

dividend reinvestment transaction financial

"Includes adjustments for accrued dividends, pursuant to a dividend reinvestment transaction"

Rule 16a-11 regulatory

"dividend reinvestment transaction exempt from Section 16 under Rule 16a-11"

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Falotico Nancy Joy

(Last) (First) (Middle)

C/O ALLIANT ENERGY CORPORATION

4902 N. BILTMORE LANE

(Street)

MADISON WISCONSIN 53718

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
ALLIANT ENERGY CORP [ LNT ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/10/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Deferred Common Stock Units	$0	04/10/2026	04/10/2026	A		778.044		(1)	(1)	Common Stock	778.044	$73.1	19,630.248(2)	D

Explanation of Responses:

1. Units are to be settled in shares of common stock upon the reporting person's termination of services as a director.

2. Includes adjustments for accrued dividends, pursuant to a dividend reinvestment transaction exempt from Section 16 under Rule 16a-11.

Remarks:

	/s/ Omar N. Chaudhary, Attorney-in-Fact	04/14/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did Alliant Energy (LNT) director Nancy Joy Falotico report in this Form 4?

Nancy Joy Falotico reported receiving 778.044 Deferred Common Stock Units as a compensation-related grant. These units are linked to Alliant Energy common stock and increase her total deferred units to 19,630.248, reflecting ongoing equity-based director compensation and prior dividend-related adjustments.

How many Alliant Energy (LNT) deferred stock units were granted to the director?

The director received a grant of 778.044 Deferred Common Stock Units at a reference price of $73.10 per unit. Each unit represents an equivalent interest in Alliant Energy common stock and is part of the company’s equity-based compensation for board service.

What is the total number of Alliant Energy (LNT) deferred units held after this transaction?

After the reported grant, Nancy Joy Falotico holds 19,630.248 Deferred Common Stock Units. This figure includes the new 778.044-unit award plus prior deferred units and adjustments for accrued dividends credited through a dividend reinvestment mechanism under Rule 16a-11.

When will the Alliant Energy (LNT) Deferred Common Stock Units be settled?

The Deferred Common Stock Units are scheduled to be settled in shares of Alliant Energy common stock when Nancy Joy Falotico’s service as a director terminates. Settlement timing is therefore tied to the end of her board tenure rather than a fixed calendar date.

Are these Alliant Energy (LNT) deferred units an open-market purchase or a grant?

These 778.044 Deferred Common Stock Units are a grant classified as a “Grant, award, or other acquisition,” not an open-market purchase. The transaction reflects compensation for board service rather than a discretionary buy in the public market.

How do dividends affect the Alliant Energy (LNT) deferred stock unit balance?

The filing notes that the deferred units include adjustments for accrued dividends. These adjustments arise from a dividend reinvestment transaction exempt under Rule 16a-11, which credits additional fractional units over time instead of paying cash dividends directly on the deferred holdings.