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Home > Insider Trading > Filing (0001127602-10-023169)

Filing Details

Accession Number:: 0001127602-10-023169
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2010-09-15 18:17:05
Reporting Period:: 2010-09-14

Filing Date:: 2010-09-15
Accepted Time:: 2010-09-15 18:17:05
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
352541	Alliant Energy Corp	LNT	Electric & Other Services Combined (4931)	391380265

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1209092	L Thomas Aller	Po Box 14720 Madison WI 53708-0720	Senior Vice President	No	Yes	No	No

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2010-09-14	12,229	$31.54	17,977	No	4	M	Direct
Common Stock	Disposition	2010-09-14	10,629	$36.54	7,348	No	4	S	Direct
Common Stock	Disposition	2010-09-14	1,600	$36.55	5,748	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct
No	4	S	Direct

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Employee Stock Option (Right to Buy)	Disposition	2010-09-14	12,229	$0.00	12,229	$31.54

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2004-01-02	2011-01-02	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	4,574	Indirect	By 401(k) Plan
Common Stock	1,000	Indirect	Spouse With Broker

Footnotes

Reflects 401(k) holdings as of this filing date.