David A. de Leon

CIK: 0001763201

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)4 (66.7%)

Compensation grants

Other (G, F, J, C, D, …)2 (33.3%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

LNT

ALLIANT ENERGY CORP

Officer

Discretionary Trading P&L

Holdings

Transaction History (6 total)

LNT
ALLIANT ENERGY CORP
Feb 19, 2026
Award(A)
Direct
8.6K shares-
LNT
ALLIANT ENERGY CORP
Feb 19, 2026
Award(A)
Direct
2.3K shares-
LNT
ALLIANT ENERGY CORP
Feb 19, 2026
Tax Payment(F)
Direct
5.2K shares at avg. $70.01$365K
LNT
ALLIANT ENERGY CORP
Feb 20, 2025
Award(A)
Direct
3.3K shares-
LNT
ALLIANT ENERGY CORP
Feb 20, 2025
Award(A)
Direct
2.5K shares-
LNT
ALLIANT ENERGY CORP
Feb 20, 2025
Tax Payment(F)
Direct
2.6K shares at avg. $61.62$158K

		Type	Shares	Price		Ownership
Feb 19, 2026	LNT ALLIANT ENERGY CORP	Award(A)	8,616	-	$0	Direct
Feb 19, 2026	LNT ALLIANT ENERGY CORP	Award(A)	2,306	-	$0	Direct
Feb 19, 2026	LNT ALLIANT ENERGY CORP	Tax Payment(F)	5,207	$70.01	$364,542	Direct
Feb 20, 2025	LNT ALLIANT ENERGY CORP	Award(A)	3,256	-	-	Direct
Feb 20, 2025	LNT ALLIANT ENERGY CORP	Award(A)	2,532	-	-	Direct
Feb 20, 2025	LNT ALLIANT ENERGY CORP	Tax Payment(F)	2,560	$61.62	$157,747	Direct

1-6 of 6 transactions

About de Leon David A

de Leon David A (SEC CIK 0001763201) files insider reports with the SEC as Senior Vice President of ALLIANT ENERGY CORP (LNT).

Signal8 holds 2 ownership filings by de Leon David A, all Form 4s, filed between Feb 24, 2025 and Feb 23, 2026. Those filings report 6 transactions, from Feb 20, 2025 to Feb 19, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on de Leon David A's filings is in MADISON, WI.

Recent filings by de Leon David A

Feb 19, 2026: Grants or awards of LNT shares (2 lines, Form 4, code A).
Feb 19, 2026: Tax withholding of LNT shares (Form 4, code F).
Feb 20, 2025: Grants or awards of LNT shares (2 lines, Form 4, code A).
Feb 20, 2025: Tax withholding of LNT shares (Form 4, code F).

Other insiders filing for ALLIANT ENERGY CORP (LNT)

ALLEN PATRICK E, Director
Asthana Manu, Director
Cortina Ignacio A, Director
Cox Stephanie, Director
Falotico Nancy Joy, Director
Garcia Michael Dennis, Director

How to read Form 4 transaction codes