Insider Ledger

LNT insider buying and SEC filings, explained

Alliant Energy Corp. · CIK 352541

Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov

Company profile

Exchanges
Nasdaq
Industry (SIC)
Electric & Other Services Combined
State of incorporation
WI
Fiscal year end
Dec 31
Former names
ALLIANT ENERGY CORP; INTERSTATE ENERGY CORP; WPL HOLDINGS INC

Insider activity in the last 12 months

Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$7
Planned sales (10b5-1)
$0

Insider purchases and sales, last 12 months

TradedTypeWhat was filedSource
Aug 10, 2026SaleRobert J. Durian (CFO) sold 0 shares at $68.60 ($7). Holdings down <1% to 158,146 shares. Not marked as a 10b5-1 plan trade.SEC filing
Filed Aug 12, 2026

39 routine transactions (such as grants, option exercises or tax withholding) are not listed.

Cluster buys

No cluster buys in the last 12 months.

Red flags

No red flags in the last 12 months.

Key events

No key events in the last 12 months.

8-K filings, last 12 months

FiledItemsTagSource
Oct 29, 2026, 6:06 PM ET
8-K
Earnings released (Item 2.02)SEC filing
Oct 28, 2026, 8:15 AM ET
8-K
Material agreement (Item 1.01)
New debt or obligation (Item 2.03)
SEC filing

Red flags are objective triggers only: the item or form filed, never an opinion.

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